./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/minepump_spec1_product48.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_product48.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 ae2f7a85a5093ad80fd05f69a7d0bbcf9a510999a9154b6f2d8037f035f00930 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-03d7b7b [2022-02-21 04:15:33,941 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-21 04:15:33,947 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-21 04:15:33,986 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-02-21 04:15:33,986 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-02-21 04:15:33,989 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-02-21 04:15:33,990 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-02-21 04:15:33,995 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-02-21 04:15:33,996 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-02-21 04:15:33,997 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-02-21 04:15:33,997 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-02-21 04:15:33,999 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-02-21 04:15:33,999 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-21 04:15:34,004 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-21 04:15:34,005 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-21 04:15:34,006 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-21 04:15:34,008 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-21 04:15:34,010 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-21 04:15:34,011 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-21 04:15:34,013 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-21 04:15:34,016 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-21 04:15:34,017 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-21 04:15:34,017 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-21 04:15:34,018 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-21 04:15:34,020 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-02-21 04:15:34,021 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-02-21 04:15:34,021 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-02-21 04:15:34,022 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-02-21 04:15:34,023 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-02-21 04:15:34,024 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-02-21 04:15:34,024 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-02-21 04:15:34,024 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-02-21 04:15:34,025 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-02-21 04:15:34,026 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-02-21 04:15:34,027 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-02-21 04:15:34,027 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-02-21 04:15:34,028 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-02-21 04:15:34,028 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-02-21 04:15:34,028 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-21 04:15:34,029 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-21 04:15:34,029 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-21 04:15:34,030 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2022-02-21 04:15:34,052 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-21 04:15:34,052 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-21 04:15:34,052 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-02-21 04:15:34,053 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-02-21 04:15:34,053 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-02-21 04:15:34,053 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-02-21 04:15:34,054 INFO L138 SettingsManager]: * Use SBE=true [2022-02-21 04:15:34,054 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-02-21 04:15:34,054 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-02-21 04:15:34,054 INFO L138 SettingsManager]: * Use old map elimination=false [2022-02-21 04:15:34,054 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-02-21 04:15:34,054 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-02-21 04:15:34,054 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-02-21 04:15:34,055 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-21 04:15:34,055 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-21 04:15:34,055 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-02-21 04:15:34,055 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-21 04:15:34,055 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-21 04:15:34,055 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-21 04:15:34,055 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-02-21 04:15:34,056 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-02-21 04:15:34,056 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-02-21 04:15:34,056 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-21 04:15:34,056 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-21 04:15:34,056 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-02-21 04:15:34,056 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-21 04:15:34,056 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-02-21 04:15:34,056 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-21 04:15:34,057 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-21 04:15:34,057 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-21 04:15:34,057 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-02-21 04:15:34,058 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-02-21 04:15:34,058 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ae2f7a85a5093ad80fd05f69a7d0bbcf9a510999a9154b6f2d8037f035f00930 [2022-02-21 04:15:34,242 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-21 04:15:34,260 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-21 04:15:34,262 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-21 04:15:34,263 INFO L271 PluginConnector]: Initializing CDTParser... [2022-02-21 04:15:34,263 INFO L275 PluginConnector]: CDTParser initialized [2022-02-21 04:15:34,264 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec1_product48.cil.c [2022-02-21 04:15:34,311 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/80f18a34e/f02cf98732684c40bd719f6e5d717d44/FLAGa35d3bf06 [2022-02-21 04:15:34,716 INFO L306 CDTParser]: Found 1 translation units. [2022-02-21 04:15:34,717 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec1_product48.cil.c [2022-02-21 04:15:34,727 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/80f18a34e/f02cf98732684c40bd719f6e5d717d44/FLAGa35d3bf06 [2022-02-21 04:15:34,736 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/80f18a34e/f02cf98732684c40bd719f6e5d717d44 [2022-02-21 04:15:34,738 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-21 04:15:34,739 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-02-21 04:15:34,741 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-02-21 04:15:34,741 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-02-21 04:15:34,743 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-02-21 04:15:34,745 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.02 04:15:34" (1/1) ... [2022-02-21 04:15:34,745 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@61f8b314 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:15:34, skipping insertion in model container [2022-02-21 04:15:34,746 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.02 04:15:34" (1/1) ... [2022-02-21 04:15:34,751 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-02-21 04:15:34,798 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-02-21 04:15:35,056 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_product48.cil.c[17123,17136] [2022-02-21 04:15:35,059 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-21 04:15:35,076 INFO L203 MainTranslator]: Completed pre-run [2022-02-21 04:15:35,139 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_product48.cil.c[17123,17136] [2022-02-21 04:15:35,142 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-21 04:15:35,157 INFO L208 MainTranslator]: Completed translation [2022-02-21 04:15:35,157 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:15:35 WrapperNode [2022-02-21 04:15:35,157 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-02-21 04:15:35,159 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-02-21 04:15:35,159 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-02-21 04:15:35,159 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-02-21 04:15:35,166 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:15:35" (1/1) ... [2022-02-21 04:15:35,179 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:15:35" (1/1) ... [2022-02-21 04:15:35,221 INFO L137 Inliner]: procedures = 56, calls = 158, calls flagged for inlining = 55, calls inlined = 98, statements flattened = 717 [2022-02-21 04:15:35,221 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-02-21 04:15:35,222 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-21 04:15:35,222 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-21 04:15:35,222 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-21 04:15:35,228 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:15:35" (1/1) ... [2022-02-21 04:15:35,228 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:15:35" (1/1) ... [2022-02-21 04:15:35,231 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:15:35" (1/1) ... [2022-02-21 04:15:35,231 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:15:35" (1/1) ... [2022-02-21 04:15:35,238 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:15:35" (1/1) ... [2022-02-21 04:15:35,244 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:15:35" (1/1) ... [2022-02-21 04:15:35,247 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:15:35" (1/1) ... [2022-02-21 04:15:35,250 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-21 04:15:35,251 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-21 04:15:35,251 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-21 04:15:35,251 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-21 04:15:35,252 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:15:35" (1/1) ... [2022-02-21 04:15:35,261 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-02-21 04:15:35,271 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-21 04:15:35,281 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 04:15:35,284 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 04:15:35,309 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-02-21 04:15:35,309 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-02-21 04:15:35,310 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-21 04:15:35,310 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-21 04:15:35,363 INFO L234 CfgBuilder]: Building ICFG [2022-02-21 04:15:35,364 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-21 04:15:35,792 INFO L275 CfgBuilder]: Performing block encoding [2022-02-21 04:15:35,800 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-21 04:15:35,801 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-02-21 04:15:35,803 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 04:15:35 BoogieIcfgContainer [2022-02-21 04:15:35,803 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-21 04:15:35,804 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-02-21 04:15:35,804 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-02-21 04:15:35,807 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-02-21 04:15:35,808 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-02-21 04:15:35,808 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 21.02 04:15:34" (1/3) ... [2022-02-21 04:15:35,809 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@64a1a2c2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.02 04:15:35, skipping insertion in model container [2022-02-21 04:15:35,809 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-02-21 04:15:35,809 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:15:35" (2/3) ... [2022-02-21 04:15:35,809 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@64a1a2c2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.02 04:15:35, skipping insertion in model container [2022-02-21 04:15:35,809 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-02-21 04:15:35,810 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 04:15:35" (3/3) ... [2022-02-21 04:15:35,811 INFO L388 chiAutomizerObserver]: Analyzing ICFG minepump_spec1_product48.cil.c [2022-02-21 04:15:35,841 INFO L359 BuchiCegarLoop]: Interprodecural is true [2022-02-21 04:15:35,841 INFO L360 BuchiCegarLoop]: Hoare is false [2022-02-21 04:15:35,842 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-02-21 04:15:35,842 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-02-21 04:15:35,842 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-02-21 04:15:35,842 INFO L364 BuchiCegarLoop]: Difference is false [2022-02-21 04:15:35,842 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-02-21 04:15:35,842 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2022-02-21 04:15:35,865 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 185 states, 184 states have (on average 1.3532608695652173) internal successors, (249), 184 states have internal predecessors, (249), 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 04:15:35,925 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 121 [2022-02-21 04:15:35,926 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:15:35,926 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:15:35,933 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:15:35,933 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 04:15:35,934 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2022-02-21 04:15:35,935 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 185 states, 184 states have (on average 1.3532608695652173) internal successors, (249), 184 states have internal predecessors, (249), 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 04:15:35,955 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 121 [2022-02-21 04:15:35,958 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:15:35,958 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:15:35,958 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:15:35,958 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 04:15:35,967 INFO L791 eck$LassoCheckResult]: Stem: 168#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(13, 4);call #Ultimate.allocInit(7, 5);call write~init~int(44, 5, 0, 1);call write~init~int(77, 5, 1, 1);call write~init~int(101, 5, 2, 1);call write~init~int(116, 5, 3, 1);call write~init~int(104, 5, 4, 1);call write~init~int(58, 5, 5, 1);call write~init~int(0, 5, 6, 1);call #Ultimate.allocInit(5, 6);call write~init~int(67, 6, 0, 1);call write~init~int(82, 6, 1, 1);call write~init~int(73, 6, 2, 1);call write~init~int(84, 6, 3, 1);call write~init~int(0, 6, 4, 1);call #Ultimate.allocInit(3, 7);call write~init~int(79, 7, 0, 1);call write~init~int(75, 7, 1, 1);call write~init~int(0, 7, 2, 1);call #Ultimate.allocInit(2, 8);call write~init~int(41, 8, 0, 1);call write~init~int(0, 8, 1, 1);call #Ultimate.allocInit(30, 9);call #Ultimate.allocInit(9, 10);call #Ultimate.allocInit(21, 11);call #Ultimate.allocInit(30, 12);call #Ultimate.allocInit(9, 13);call #Ultimate.allocInit(21, 14);call #Ultimate.allocInit(30, 15);call #Ultimate.allocInit(9, 16);call #Ultimate.allocInit(25, 17);call #Ultimate.allocInit(30, 18);call #Ultimate.allocInit(9, 19);call #Ultimate.allocInit(25, 20);call #Ultimate.allocInit(13, 21);call #Ultimate.allocInit(3, 22);call write~init~int(79, 22, 0, 1);call write~init~int(110, 22, 1, 1);call write~init~int(0, 22, 2, 1);call #Ultimate.allocInit(4, 23);call write~init~int(79, 23, 0, 1);call write~init~int(102, 23, 1, 1);call write~init~int(102, 23, 2, 1);call write~init~int(0, 23, 3, 1);call #Ultimate.allocInit(7, 24);call write~init~int(44, 24, 0, 1);call write~init~int(80, 24, 1, 1);call write~init~int(117, 24, 2, 1);call write~init~int(109, 24, 3, 1);call write~init~int(112, 24, 4, 1);call write~init~int(58, 24, 5, 1);call write~init~int(0, 24, 6, 1);call #Ultimate.allocInit(3, 25);call write~init~int(79, 25, 0, 1);call write~init~int(110, 25, 1, 1);call write~init~int(0, 25, 2, 1);call #Ultimate.allocInit(4, 26);call write~init~int(79, 26, 0, 1);call write~init~int(102, 26, 1, 1);call write~init~int(102, 26, 2, 1);call write~init~int(0, 26, 3, 1);call #Ultimate.allocInit(3, 27);call write~init~int(41, 27, 0, 1);call write~init~int(32, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(10, 28, 0, 1);call write~init~int(0, 28, 1, 1);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1; 60#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret9#1, main_~retValue_acc~3#1, main_~tmp~0#1;havoc main_~retValue_acc~3#1;havoc main_~tmp~0#1;assume { :begin_inline_select_helpers } true; 24#L969true assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 43#L962true assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~11#1;havoc valid_product_~retValue_acc~11#1;valid_product_~retValue_acc~11#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~11#1; 149#L977true main_#t~ret9#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~0#1 := main_#t~ret9#1;havoc main_#t~ret9#1; 49#L239true assume 0 != main_~tmp~0#1;assume { :begin_inline_setup } true; 110#L212true assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet48#1, test_#t~nondet49#1, test_#t~nondet50#1, test_#t~nondet51#1, test_~splverifierCounter~0#1, test_~tmp~9#1, test_~tmp___0~2#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~9#1;havoc test_~tmp___0~2#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 102#L888-2true [2022-02-21 04:15:35,967 INFO L793 eck$LassoCheckResult]: Loop: 102#L888-2true assume !false; 15#L889true assume test_~splverifierCounter~0#1 < 4; 75#L890true test_~tmp~9#1 := test_#t~nondet48#1;havoc test_#t~nondet48#1; 127#L898true assume !(0 != test_~tmp~9#1); 68#L898-2true test_~tmp___0~2#1 := test_#t~nondet49#1;havoc test_#t~nondet49#1; 106#L908true assume !(0 != test_~tmp___0~2#1); 14#L908-2true test_~tmp___2~0#1 := test_#t~nondet50#1;havoc test_#t~nondet50#1; 23#L918true assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 147#L865true assume { :end_inline_startSystem } true; 144#L926-2true assume { :begin_inline_timeShift } true; 44#L658true assume !(0 != ~pumpRunning~0); 156#L658-2true assume !(0 != ~systemActive~0); 52#L665-1true assume { :begin_inline___utac_acc__Specification1_spec__1 } true;havoc __utac_acc__Specification1_spec__1_#t~ret33#1, __utac_acc__Specification1_spec__1_#t~ret34#1, __utac_acc__Specification1_spec__1_~tmp~4#1, __utac_acc__Specification1_spec__1_~tmp___0~0#1;havoc __utac_acc__Specification1_spec__1_~tmp~4#1;havoc __utac_acc__Specification1_spec__1_~tmp___0~0#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;isMethaneLevelCritical_~retValue_acc~0#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~0#1; 157#L100-3true __utac_acc__Specification1_spec__1_#t~ret33#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification1_spec__1_~tmp~4#1 := __utac_acc__Specification1_spec__1_#t~ret33#1;havoc __utac_acc__Specification1_spec__1_#t~ret33#1; 70#L629true assume !(0 != __utac_acc__Specification1_spec__1_~tmp~4#1); 118#L629-1true assume { :end_inline___utac_acc__Specification1_spec__1 } true; 100#L675true assume { :end_inline_timeShift } true; 102#L888-2true [2022-02-21 04:15:35,972 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:15:35,972 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 1 times [2022-02-21 04:15:35,978 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:15:35,978 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1633249066] [2022-02-21 04:15:35,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:15:35,979 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:15:36,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:15:36,101 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:15:36,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:15:36,152 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:15:36,155 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:15:36,156 INFO L85 PathProgramCache]: Analyzing trace with hash -1439043263, now seen corresponding path program 1 times [2022-02-21 04:15:36,156 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:15:36,156 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [499984269] [2022-02-21 04:15:36,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:15:36,156 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:15:36,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-21 04:15:36,236 INFO L290 TraceCheckUtils]: 0: Hoare triple {191#true} assume !false; {191#true} is VALID [2022-02-21 04:15:36,237 INFO L290 TraceCheckUtils]: 1: Hoare triple {191#true} assume test_~splverifierCounter~0#1 < 4; {191#true} is VALID [2022-02-21 04:15:36,237 INFO L290 TraceCheckUtils]: 2: Hoare triple {191#true} test_~tmp~9#1 := test_#t~nondet48#1;havoc test_#t~nondet48#1; {191#true} is VALID [2022-02-21 04:15:36,237 INFO L290 TraceCheckUtils]: 3: Hoare triple {191#true} assume !(0 != test_~tmp~9#1); {191#true} is VALID [2022-02-21 04:15:36,237 INFO L290 TraceCheckUtils]: 4: Hoare triple {191#true} test_~tmp___0~2#1 := test_#t~nondet49#1;havoc test_#t~nondet49#1; {191#true} is VALID [2022-02-21 04:15:36,237 INFO L290 TraceCheckUtils]: 5: Hoare triple {191#true} assume !(0 != test_~tmp___0~2#1); {191#true} is VALID [2022-02-21 04:15:36,237 INFO L290 TraceCheckUtils]: 6: Hoare triple {191#true} test_~tmp___2~0#1 := test_#t~nondet50#1;havoc test_#t~nondet50#1; {191#true} is VALID [2022-02-21 04:15:36,238 INFO L290 TraceCheckUtils]: 7: Hoare triple {191#true} assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; {193#(<= 1 ~systemActive~0)} is VALID [2022-02-21 04:15:36,239 INFO L290 TraceCheckUtils]: 8: Hoare triple {193#(<= 1 ~systemActive~0)} assume { :end_inline_startSystem } true; {193#(<= 1 ~systemActive~0)} is VALID [2022-02-21 04:15:36,239 INFO L290 TraceCheckUtils]: 9: Hoare triple {193#(<= 1 ~systemActive~0)} assume { :begin_inline_timeShift } true; {193#(<= 1 ~systemActive~0)} is VALID [2022-02-21 04:15:36,239 INFO L290 TraceCheckUtils]: 10: Hoare triple {193#(<= 1 ~systemActive~0)} assume !(0 != ~pumpRunning~0); {193#(<= 1 ~systemActive~0)} is VALID [2022-02-21 04:15:36,240 INFO L290 TraceCheckUtils]: 11: Hoare triple {193#(<= 1 ~systemActive~0)} assume !(0 != ~systemActive~0); {192#false} is VALID [2022-02-21 04:15:36,240 INFO L290 TraceCheckUtils]: 12: Hoare triple {192#false} assume { :begin_inline___utac_acc__Specification1_spec__1 } true;havoc __utac_acc__Specification1_spec__1_#t~ret33#1, __utac_acc__Specification1_spec__1_#t~ret34#1, __utac_acc__Specification1_spec__1_~tmp~4#1, __utac_acc__Specification1_spec__1_~tmp___0~0#1;havoc __utac_acc__Specification1_spec__1_~tmp~4#1;havoc __utac_acc__Specification1_spec__1_~tmp___0~0#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;isMethaneLevelCritical_~retValue_acc~0#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~0#1; {192#false} is VALID [2022-02-21 04:15:36,240 INFO L290 TraceCheckUtils]: 13: Hoare triple {192#false} __utac_acc__Specification1_spec__1_#t~ret33#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification1_spec__1_~tmp~4#1 := __utac_acc__Specification1_spec__1_#t~ret33#1;havoc __utac_acc__Specification1_spec__1_#t~ret33#1; {192#false} is VALID [2022-02-21 04:15:36,240 INFO L290 TraceCheckUtils]: 14: Hoare triple {192#false} assume !(0 != __utac_acc__Specification1_spec__1_~tmp~4#1); {192#false} is VALID [2022-02-21 04:15:36,240 INFO L290 TraceCheckUtils]: 15: Hoare triple {192#false} assume { :end_inline___utac_acc__Specification1_spec__1 } true; {192#false} is VALID [2022-02-21 04:15:36,241 INFO L290 TraceCheckUtils]: 16: Hoare triple {192#false} assume { :end_inline_timeShift } true; {192#false} is VALID [2022-02-21 04:15:36,241 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 04:15:36,242 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-21 04:15:36,242 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [499984269] [2022-02-21 04:15:36,242 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [499984269] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-21 04:15:36,242 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-21 04:15:36,243 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-02-21 04:15:36,243 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1108438184] [2022-02-21 04:15:36,244 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-21 04:15:36,247 INFO L808 eck$LassoCheckResult]: loop already infeasible [2022-02-21 04:15:36,248 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-21 04:15:36,266 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-02-21 04:15:36,266 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-21 04:15:36,271 INFO L87 Difference]: Start difference. First operand has 185 states, 184 states have (on average 1.3532608695652173) internal successors, (249), 184 states have internal predecessors, (249), 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 04:15:36,612 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:15:36,613 INFO L93 Difference]: Finished difference Result 355 states and 465 transitions. [2022-02-21 04:15:36,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-21 04:15:36,614 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 04:15:36,628 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 04:15:36,635 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 355 states and 465 transitions. [2022-02-21 04:15:36,660 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 232 [2022-02-21 04:15:36,674 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 355 states to 335 states and 444 transitions. [2022-02-21 04:15:36,674 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 335 [2022-02-21 04:15:36,675 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 335 [2022-02-21 04:15:36,676 INFO L73 IsDeterministic]: Start isDeterministic. Operand 335 states and 444 transitions. [2022-02-21 04:15:36,679 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-02-21 04:15:36,679 INFO L681 BuchiCegarLoop]: Abstraction has 335 states and 444 transitions. [2022-02-21 04:15:36,695 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 335 states and 444 transitions. [2022-02-21 04:15:36,724 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 335 to 332. [2022-02-21 04:15:36,724 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-02-21 04:15:36,729 INFO L82 GeneralOperation]: Start isEquivalent. First operand 335 states and 444 transitions. Second operand has 332 states, 332 states have (on average 1.3253012048192772) internal successors, (440), 331 states have internal predecessors, (440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:15:36,729 INFO L74 IsIncluded]: Start isIncluded. First operand 335 states and 444 transitions. Second operand has 332 states, 332 states have (on average 1.3253012048192772) internal successors, (440), 331 states have internal predecessors, (440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:15:36,731 INFO L87 Difference]: Start difference. First operand 335 states and 444 transitions. Second operand has 332 states, 332 states have (on average 1.3253012048192772) internal successors, (440), 331 states have internal predecessors, (440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:15:36,738 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:15:36,738 INFO L93 Difference]: Finished difference Result 335 states and 444 transitions. [2022-02-21 04:15:36,739 INFO L276 IsEmpty]: Start isEmpty. Operand 335 states and 444 transitions. [2022-02-21 04:15:36,741 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:15:36,741 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:15:36,742 INFO L74 IsIncluded]: Start isIncluded. First operand has 332 states, 332 states have (on average 1.3253012048192772) internal successors, (440), 331 states have internal predecessors, (440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand 335 states and 444 transitions. [2022-02-21 04:15:36,742 INFO L87 Difference]: Start difference. First operand has 332 states, 332 states have (on average 1.3253012048192772) internal successors, (440), 331 states have internal predecessors, (440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand 335 states and 444 transitions. [2022-02-21 04:15:36,750 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:15:36,750 INFO L93 Difference]: Finished difference Result 335 states and 444 transitions. [2022-02-21 04:15:36,750 INFO L276 IsEmpty]: Start isEmpty. Operand 335 states and 444 transitions. [2022-02-21 04:15:36,752 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:15:36,752 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:15:36,752 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-02-21 04:15:36,754 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-02-21 04:15:36,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 332 states, 332 states have (on average 1.3253012048192772) internal successors, (440), 331 states have internal predecessors, (440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:15:36,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 332 states to 332 states and 440 transitions. [2022-02-21 04:15:36,764 INFO L704 BuchiCegarLoop]: Abstraction has 332 states and 440 transitions. [2022-02-21 04:15:36,764 INFO L587 BuchiCegarLoop]: Abstraction has 332 states and 440 transitions. [2022-02-21 04:15:36,764 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2022-02-21 04:15:36,765 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 332 states and 440 transitions. [2022-02-21 04:15:36,766 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 229 [2022-02-21 04:15:36,766 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:15:36,766 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:15:36,767 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:15:36,767 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 04:15:36,767 INFO L791 eck$LassoCheckResult]: Stem: 728#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(13, 4);call #Ultimate.allocInit(7, 5);call write~init~int(44, 5, 0, 1);call write~init~int(77, 5, 1, 1);call write~init~int(101, 5, 2, 1);call write~init~int(116, 5, 3, 1);call write~init~int(104, 5, 4, 1);call write~init~int(58, 5, 5, 1);call write~init~int(0, 5, 6, 1);call #Ultimate.allocInit(5, 6);call write~init~int(67, 6, 0, 1);call write~init~int(82, 6, 1, 1);call write~init~int(73, 6, 2, 1);call write~init~int(84, 6, 3, 1);call write~init~int(0, 6, 4, 1);call #Ultimate.allocInit(3, 7);call write~init~int(79, 7, 0, 1);call write~init~int(75, 7, 1, 1);call write~init~int(0, 7, 2, 1);call #Ultimate.allocInit(2, 8);call write~init~int(41, 8, 0, 1);call write~init~int(0, 8, 1, 1);call #Ultimate.allocInit(30, 9);call #Ultimate.allocInit(9, 10);call #Ultimate.allocInit(21, 11);call #Ultimate.allocInit(30, 12);call #Ultimate.allocInit(9, 13);call #Ultimate.allocInit(21, 14);call #Ultimate.allocInit(30, 15);call #Ultimate.allocInit(9, 16);call #Ultimate.allocInit(25, 17);call #Ultimate.allocInit(30, 18);call #Ultimate.allocInit(9, 19);call #Ultimate.allocInit(25, 20);call #Ultimate.allocInit(13, 21);call #Ultimate.allocInit(3, 22);call write~init~int(79, 22, 0, 1);call write~init~int(110, 22, 1, 1);call write~init~int(0, 22, 2, 1);call #Ultimate.allocInit(4, 23);call write~init~int(79, 23, 0, 1);call write~init~int(102, 23, 1, 1);call write~init~int(102, 23, 2, 1);call write~init~int(0, 23, 3, 1);call #Ultimate.allocInit(7, 24);call write~init~int(44, 24, 0, 1);call write~init~int(80, 24, 1, 1);call write~init~int(117, 24, 2, 1);call write~init~int(109, 24, 3, 1);call write~init~int(112, 24, 4, 1);call write~init~int(58, 24, 5, 1);call write~init~int(0, 24, 6, 1);call #Ultimate.allocInit(3, 25);call write~init~int(79, 25, 0, 1);call write~init~int(110, 25, 1, 1);call write~init~int(0, 25, 2, 1);call #Ultimate.allocInit(4, 26);call write~init~int(79, 26, 0, 1);call write~init~int(102, 26, 1, 1);call write~init~int(102, 26, 2, 1);call write~init~int(0, 26, 3, 1);call #Ultimate.allocInit(3, 27);call write~init~int(41, 27, 0, 1);call write~init~int(32, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(10, 28, 0, 1);call write~init~int(0, 28, 1, 1);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1; 650#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret9#1, main_~retValue_acc~3#1, main_~tmp~0#1;havoc main_~retValue_acc~3#1;havoc main_~tmp~0#1;assume { :begin_inline_select_helpers } true; 592#L969 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 593#L962 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~11#1;havoc valid_product_~retValue_acc~11#1;valid_product_~retValue_acc~11#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~11#1; 621#L977 main_#t~ret9#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~0#1 := main_#t~ret9#1;havoc main_#t~ret9#1; 630#L239 assume 0 != main_~tmp~0#1;assume { :begin_inline_setup } true; 631#L212 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet48#1, test_#t~nondet49#1, test_#t~nondet50#1, test_#t~nondet51#1, test_~splverifierCounter~0#1, test_~tmp~9#1, test_~tmp___0~2#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~9#1;havoc test_~tmp___0~2#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 695#L888-2 [2022-02-21 04:15:36,767 INFO L793 eck$LassoCheckResult]: Loop: 695#L888-2 assume !false; 573#L889 assume test_~splverifierCounter~0#1 < 4; 574#L890 test_~tmp~9#1 := test_#t~nondet48#1;havoc test_#t~nondet48#1; 706#L898 assume !(0 != test_~tmp~9#1); 659#L898-2 test_~tmp___0~2#1 := test_#t~nondet49#1;havoc test_#t~nondet49#1; 660#L908 assume !(0 != test_~tmp___0~2#1); 560#L908-2 test_~tmp___2~0#1 := test_#t~nondet50#1;havoc test_#t~nondet50#1; 572#L918 assume !(0 != test_~tmp___2~0#1);test_~tmp___1~0#1 := test_#t~nondet51#1;havoc test_#t~nondet51#1; 590#L926 assume !(0 != test_~tmp___1~0#1); 712#L926-2 assume { :begin_inline_timeShift } true; 622#L658 assume !(0 != ~pumpRunning~0); 604#L658-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret36#1, processEnvironment_~tmp~6#1;havoc processEnvironment_~tmp~6#1; 667#L716 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__methaneQuery } true;havoc processEnvironment__wrappee__methaneQuery_#t~ret35#1, processEnvironment__wrappee__methaneQuery_~tmp~5#1;havoc processEnvironment__wrappee__methaneQuery_~tmp~5#1; 623#L690-2 assume !(0 == ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true; 624#L682-3 assume { :end_inline_processEnvironment__wrappee__base } true; 565#L690-3 assume { :end_inline_processEnvironment__wrappee__methaneQuery } true; 569#L716-1 assume { :end_inline_processEnvironment } true; 636#L665-1 assume { :begin_inline___utac_acc__Specification1_spec__1 } true;havoc __utac_acc__Specification1_spec__1_#t~ret33#1, __utac_acc__Specification1_spec__1_#t~ret34#1, __utac_acc__Specification1_spec__1_~tmp~4#1, __utac_acc__Specification1_spec__1_~tmp___0~0#1;havoc __utac_acc__Specification1_spec__1_~tmp~4#1;havoc __utac_acc__Specification1_spec__1_~tmp___0~0#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;isMethaneLevelCritical_~retValue_acc~0#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~0#1; 637#L100-3 __utac_acc__Specification1_spec__1_#t~ret33#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification1_spec__1_~tmp~4#1 := __utac_acc__Specification1_spec__1_#t~ret33#1;havoc __utac_acc__Specification1_spec__1_#t~ret33#1; 665#L629 assume !(0 != __utac_acc__Specification1_spec__1_~tmp~4#1); 666#L629-1 assume { :end_inline___utac_acc__Specification1_spec__1 } true; 694#L675 assume { :end_inline_timeShift } true; 695#L888-2 [2022-02-21 04:15:36,767 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:15:36,768 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 2 times [2022-02-21 04:15:36,768 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:15:36,768 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [910827072] [2022-02-21 04:15:36,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:15:36,768 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:15:36,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:15:36,787 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:15:36,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:15:36,812 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:15:36,813 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:15:36,813 INFO L85 PathProgramCache]: Analyzing trace with hash -1432805359, now seen corresponding path program 1 times [2022-02-21 04:15:36,813 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:15:36,813 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1779164423] [2022-02-21 04:15:36,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:15:36,813 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:15:36,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-21 04:15:36,838 INFO L290 TraceCheckUtils]: 0: Hoare triple {1556#true} assume !false; {1556#true} is VALID [2022-02-21 04:15:36,838 INFO L290 TraceCheckUtils]: 1: Hoare triple {1556#true} assume test_~splverifierCounter~0#1 < 4; {1556#true} is VALID [2022-02-21 04:15:36,838 INFO L290 TraceCheckUtils]: 2: Hoare triple {1556#true} test_~tmp~9#1 := test_#t~nondet48#1;havoc test_#t~nondet48#1; {1556#true} is VALID [2022-02-21 04:15:36,838 INFO L290 TraceCheckUtils]: 3: Hoare triple {1556#true} assume !(0 != test_~tmp~9#1); {1556#true} is VALID [2022-02-21 04:15:36,838 INFO L290 TraceCheckUtils]: 4: Hoare triple {1556#true} test_~tmp___0~2#1 := test_#t~nondet49#1;havoc test_#t~nondet49#1; {1556#true} is VALID [2022-02-21 04:15:36,838 INFO L290 TraceCheckUtils]: 5: Hoare triple {1556#true} assume !(0 != test_~tmp___0~2#1); {1556#true} is VALID [2022-02-21 04:15:36,839 INFO L290 TraceCheckUtils]: 6: Hoare triple {1556#true} test_~tmp___2~0#1 := test_#t~nondet50#1;havoc test_#t~nondet50#1; {1556#true} is VALID [2022-02-21 04:15:36,839 INFO L290 TraceCheckUtils]: 7: Hoare triple {1556#true} assume !(0 != test_~tmp___2~0#1);test_~tmp___1~0#1 := test_#t~nondet51#1;havoc test_#t~nondet51#1; {1556#true} is VALID [2022-02-21 04:15:36,839 INFO L290 TraceCheckUtils]: 8: Hoare triple {1556#true} assume !(0 != test_~tmp___1~0#1); {1556#true} is VALID [2022-02-21 04:15:36,839 INFO L290 TraceCheckUtils]: 9: Hoare triple {1556#true} assume { :begin_inline_timeShift } true; {1556#true} is VALID [2022-02-21 04:15:36,841 INFO L290 TraceCheckUtils]: 10: Hoare triple {1556#true} assume !(0 != ~pumpRunning~0); {1558#(= ~pumpRunning~0 0)} is VALID [2022-02-21 04:15:36,841 INFO L290 TraceCheckUtils]: 11: Hoare triple {1558#(= ~pumpRunning~0 0)} assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret36#1, processEnvironment_~tmp~6#1;havoc processEnvironment_~tmp~6#1; {1558#(= ~pumpRunning~0 0)} is VALID [2022-02-21 04:15:36,842 INFO L290 TraceCheckUtils]: 12: Hoare triple {1558#(= ~pumpRunning~0 0)} assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__methaneQuery } true;havoc processEnvironment__wrappee__methaneQuery_#t~ret35#1, processEnvironment__wrappee__methaneQuery_~tmp~5#1;havoc processEnvironment__wrappee__methaneQuery_~tmp~5#1; {1558#(= ~pumpRunning~0 0)} is VALID [2022-02-21 04:15:36,842 INFO L290 TraceCheckUtils]: 13: Hoare triple {1558#(= ~pumpRunning~0 0)} assume !(0 == ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true; {1557#false} is VALID [2022-02-21 04:15:36,842 INFO L290 TraceCheckUtils]: 14: Hoare triple {1557#false} assume { :end_inline_processEnvironment__wrappee__base } true; {1557#false} is VALID [2022-02-21 04:15:36,843 INFO L290 TraceCheckUtils]: 15: Hoare triple {1557#false} assume { :end_inline_processEnvironment__wrappee__methaneQuery } true; {1557#false} is VALID [2022-02-21 04:15:36,843 INFO L290 TraceCheckUtils]: 16: Hoare triple {1557#false} assume { :end_inline_processEnvironment } true; {1557#false} is VALID [2022-02-21 04:15:36,843 INFO L290 TraceCheckUtils]: 17: Hoare triple {1557#false} assume { :begin_inline___utac_acc__Specification1_spec__1 } true;havoc __utac_acc__Specification1_spec__1_#t~ret33#1, __utac_acc__Specification1_spec__1_#t~ret34#1, __utac_acc__Specification1_spec__1_~tmp~4#1, __utac_acc__Specification1_spec__1_~tmp___0~0#1;havoc __utac_acc__Specification1_spec__1_~tmp~4#1;havoc __utac_acc__Specification1_spec__1_~tmp___0~0#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;isMethaneLevelCritical_~retValue_acc~0#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~0#1; {1557#false} is VALID [2022-02-21 04:15:36,843 INFO L290 TraceCheckUtils]: 18: Hoare triple {1557#false} __utac_acc__Specification1_spec__1_#t~ret33#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification1_spec__1_~tmp~4#1 := __utac_acc__Specification1_spec__1_#t~ret33#1;havoc __utac_acc__Specification1_spec__1_#t~ret33#1; {1557#false} is VALID [2022-02-21 04:15:36,843 INFO L290 TraceCheckUtils]: 19: Hoare triple {1557#false} assume !(0 != __utac_acc__Specification1_spec__1_~tmp~4#1); {1557#false} is VALID [2022-02-21 04:15:36,843 INFO L290 TraceCheckUtils]: 20: Hoare triple {1557#false} assume { :end_inline___utac_acc__Specification1_spec__1 } true; {1557#false} is VALID [2022-02-21 04:15:36,843 INFO L290 TraceCheckUtils]: 21: Hoare triple {1557#false} assume { :end_inline_timeShift } true; {1557#false} is VALID [2022-02-21 04:15:36,844 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 04:15:36,844 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-21 04:15:36,844 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1779164423] [2022-02-21 04:15:36,844 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1779164423] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-21 04:15:36,844 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-21 04:15:36,844 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-02-21 04:15:36,844 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [957868908] [2022-02-21 04:15:36,845 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-21 04:15:36,845 INFO L808 eck$LassoCheckResult]: loop already infeasible [2022-02-21 04:15:36,845 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-21 04:15:36,846 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-02-21 04:15:36,846 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-21 04:15:36,847 INFO L87 Difference]: Start difference. First operand 332 states and 440 transitions. cyclomatic complexity: 111 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 04:15:37,089 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:15:37,090 INFO L93 Difference]: Finished difference Result 456 states and 581 transitions. [2022-02-21 04:15:37,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-21 04:15:37,090 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 04:15:37,113 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 04:15:37,113 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 456 states and 581 transitions. [2022-02-21 04:15:37,128 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 323 [2022-02-21 04:15:37,141 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 456 states to 456 states and 581 transitions. [2022-02-21 04:15:37,142 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 456 [2022-02-21 04:15:37,142 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 456 [2022-02-21 04:15:37,142 INFO L73 IsDeterministic]: Start isDeterministic. Operand 456 states and 581 transitions. [2022-02-21 04:15:37,143 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-02-21 04:15:37,143 INFO L681 BuchiCegarLoop]: Abstraction has 456 states and 581 transitions. [2022-02-21 04:15:37,143 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 456 states and 581 transitions. [2022-02-21 04:15:37,167 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 456 to 456. [2022-02-21 04:15:37,168 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-02-21 04:15:37,169 INFO L82 GeneralOperation]: Start isEquivalent. First operand 456 states and 581 transitions. Second operand has 456 states, 456 states have (on average 1.2741228070175439) internal successors, (581), 455 states have internal predecessors, (581), 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 04:15:37,170 INFO L74 IsIncluded]: Start isIncluded. First operand 456 states and 581 transitions. Second operand has 456 states, 456 states have (on average 1.2741228070175439) internal successors, (581), 455 states have internal predecessors, (581), 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 04:15:37,171 INFO L87 Difference]: Start difference. First operand 456 states and 581 transitions. Second operand has 456 states, 456 states have (on average 1.2741228070175439) internal successors, (581), 455 states have internal predecessors, (581), 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 04:15:37,180 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:15:37,180 INFO L93 Difference]: Finished difference Result 456 states and 581 transitions. [2022-02-21 04:15:37,181 INFO L276 IsEmpty]: Start isEmpty. Operand 456 states and 581 transitions. [2022-02-21 04:15:37,182 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:15:37,182 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:15:37,183 INFO L74 IsIncluded]: Start isIncluded. First operand has 456 states, 456 states have (on average 1.2741228070175439) internal successors, (581), 455 states have internal predecessors, (581), 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 456 states and 581 transitions. [2022-02-21 04:15:37,184 INFO L87 Difference]: Start difference. First operand has 456 states, 456 states have (on average 1.2741228070175439) internal successors, (581), 455 states have internal predecessors, (581), 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 456 states and 581 transitions. [2022-02-21 04:15:37,193 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:15:37,194 INFO L93 Difference]: Finished difference Result 456 states and 581 transitions. [2022-02-21 04:15:37,194 INFO L276 IsEmpty]: Start isEmpty. Operand 456 states and 581 transitions. [2022-02-21 04:15:37,194 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:15:37,195 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:15:37,195 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-02-21 04:15:37,195 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-02-21 04:15:37,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 456 states, 456 states have (on average 1.2741228070175439) internal successors, (581), 455 states have internal predecessors, (581), 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 04:15:37,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 456 states to 456 states and 581 transitions. [2022-02-21 04:15:37,205 INFO L704 BuchiCegarLoop]: Abstraction has 456 states and 581 transitions. [2022-02-21 04:15:37,205 INFO L587 BuchiCegarLoop]: Abstraction has 456 states and 581 transitions. [2022-02-21 04:15:37,205 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2022-02-21 04:15:37,205 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 456 states and 581 transitions. [2022-02-21 04:15:37,207 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 323 [2022-02-21 04:15:37,207 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:15:37,207 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:15:37,207 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:15:37,207 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 04:15:37,207 INFO L791 eck$LassoCheckResult]: Stem: 2243#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(13, 4);call #Ultimate.allocInit(7, 5);call write~init~int(44, 5, 0, 1);call write~init~int(77, 5, 1, 1);call write~init~int(101, 5, 2, 1);call write~init~int(116, 5, 3, 1);call write~init~int(104, 5, 4, 1);call write~init~int(58, 5, 5, 1);call write~init~int(0, 5, 6, 1);call #Ultimate.allocInit(5, 6);call write~init~int(67, 6, 0, 1);call write~init~int(82, 6, 1, 1);call write~init~int(73, 6, 2, 1);call write~init~int(84, 6, 3, 1);call write~init~int(0, 6, 4, 1);call #Ultimate.allocInit(3, 7);call write~init~int(79, 7, 0, 1);call write~init~int(75, 7, 1, 1);call write~init~int(0, 7, 2, 1);call #Ultimate.allocInit(2, 8);call write~init~int(41, 8, 0, 1);call write~init~int(0, 8, 1, 1);call #Ultimate.allocInit(30, 9);call #Ultimate.allocInit(9, 10);call #Ultimate.allocInit(21, 11);call #Ultimate.allocInit(30, 12);call #Ultimate.allocInit(9, 13);call #Ultimate.allocInit(21, 14);call #Ultimate.allocInit(30, 15);call #Ultimate.allocInit(9, 16);call #Ultimate.allocInit(25, 17);call #Ultimate.allocInit(30, 18);call #Ultimate.allocInit(9, 19);call #Ultimate.allocInit(25, 20);call #Ultimate.allocInit(13, 21);call #Ultimate.allocInit(3, 22);call write~init~int(79, 22, 0, 1);call write~init~int(110, 22, 1, 1);call write~init~int(0, 22, 2, 1);call #Ultimate.allocInit(4, 23);call write~init~int(79, 23, 0, 1);call write~init~int(102, 23, 1, 1);call write~init~int(102, 23, 2, 1);call write~init~int(0, 23, 3, 1);call #Ultimate.allocInit(7, 24);call write~init~int(44, 24, 0, 1);call write~init~int(80, 24, 1, 1);call write~init~int(117, 24, 2, 1);call write~init~int(109, 24, 3, 1);call write~init~int(112, 24, 4, 1);call write~init~int(58, 24, 5, 1);call write~init~int(0, 24, 6, 1);call #Ultimate.allocInit(3, 25);call write~init~int(79, 25, 0, 1);call write~init~int(110, 25, 1, 1);call write~init~int(0, 25, 2, 1);call #Ultimate.allocInit(4, 26);call write~init~int(79, 26, 0, 1);call write~init~int(102, 26, 1, 1);call write~init~int(102, 26, 2, 1);call write~init~int(0, 26, 3, 1);call #Ultimate.allocInit(3, 27);call write~init~int(41, 27, 0, 1);call write~init~int(32, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(10, 28, 0, 1);call write~init~int(0, 28, 1, 1);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1; 2122#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret9#1, main_~retValue_acc~3#1, main_~tmp~0#1;havoc main_~retValue_acc~3#1;havoc main_~tmp~0#1;assume { :begin_inline_select_helpers } true; 2060#L969 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 2061#L962 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~11#1;havoc valid_product_~retValue_acc~11#1;valid_product_~retValue_acc~11#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~11#1; 2093#L977 main_#t~ret9#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~0#1 := main_#t~ret9#1;havoc main_#t~ret9#1; 2103#L239 assume 0 != main_~tmp~0#1;assume { :begin_inline_setup } true; 2104#L212 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet48#1, test_#t~nondet49#1, test_#t~nondet50#1, test_#t~nondet51#1, test_~splverifierCounter~0#1, test_~tmp~9#1, test_~tmp___0~2#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~9#1;havoc test_~tmp___0~2#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 2190#L888-2 [2022-02-21 04:15:37,223 INFO L793 eck$LassoCheckResult]: Loop: 2190#L888-2 assume !false; 2255#L889 assume test_~splverifierCounter~0#1 < 4; 2256#L890 test_~tmp~9#1 := test_#t~nondet48#1;havoc test_#t~nondet48#1; 2279#L898 assume !(0 != test_~tmp~9#1); 2274#L898-2 test_~tmp___0~2#1 := test_#t~nondet49#1;havoc test_#t~nondet49#1; 2275#L908 assume !(0 != test_~tmp___0~2#1); 2324#L908-2 test_~tmp___2~0#1 := test_#t~nondet50#1;havoc test_#t~nondet50#1; 2323#L918 assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 2225#L865 assume { :end_inline_startSystem } true; 2226#L926-2 assume { :begin_inline_timeShift } true; 2321#L658 assume !(0 != ~pumpRunning~0); 2282#L658-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret36#1, processEnvironment_~tmp~6#1;havoc processEnvironment_~tmp~6#1; 2320#L716 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__methaneQuery } true;havoc processEnvironment__wrappee__methaneQuery_#t~ret35#1, processEnvironment__wrappee__methaneQuery_~tmp~5#1;havoc processEnvironment__wrappee__methaneQuery_~tmp~5#1; 2312#L690-2 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret47#1, isHighWaterLevel_~retValue_acc~9#1, isHighWaterLevel_~tmp~8#1, isHighWaterLevel_~tmp___0~1#1;havoc isHighWaterLevel_~retValue_acc~9#1;havoc isHighWaterLevel_~tmp~8#1;havoc isHighWaterLevel_~tmp___0~1#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~2#1;havoc isHighWaterSensorDry_~retValue_acc~2#1; 2319#L140-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~2#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~2#1; 2318#L145-1 isHighWaterLevel_#t~ret47#1 := isHighWaterSensorDry_#res#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~8#1 := isHighWaterLevel_#t~ret47#1;havoc isHighWaterLevel_#t~ret47#1; 2317#L835-3 assume 0 != isHighWaterLevel_~tmp~8#1;isHighWaterLevel_~tmp___0~1#1 := 0; 2316#L835-5 isHighWaterLevel_~retValue_acc~9#1 := isHighWaterLevel_~tmp___0~1#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~9#1; 2315#L841-1 processEnvironment__wrappee__methaneQuery_#t~ret35#1 := isHighWaterLevel_#res#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__methaneQuery_~tmp~5#1 := processEnvironment__wrappee__methaneQuery_#t~ret35#1;havoc processEnvironment__wrappee__methaneQuery_#t~ret35#1; 2314#L694-3 assume !(0 != processEnvironment__wrappee__methaneQuery_~tmp~5#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 2042#L682-2 assume { :end_inline_processEnvironment__wrappee__base } true; 2030#L690-3 assume { :end_inline_processEnvironment__wrappee__methaneQuery } true; 2034#L716-1 assume { :end_inline_processEnvironment } true; 2107#L665-1 assume { :begin_inline___utac_acc__Specification1_spec__1 } true;havoc __utac_acc__Specification1_spec__1_#t~ret33#1, __utac_acc__Specification1_spec__1_#t~ret34#1, __utac_acc__Specification1_spec__1_~tmp~4#1, __utac_acc__Specification1_spec__1_~tmp___0~0#1;havoc __utac_acc__Specification1_spec__1_~tmp~4#1;havoc __utac_acc__Specification1_spec__1_~tmp___0~0#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;isMethaneLevelCritical_~retValue_acc~0#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~0#1; 2108#L100-3 __utac_acc__Specification1_spec__1_#t~ret33#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification1_spec__1_~tmp~4#1 := __utac_acc__Specification1_spec__1_#t~ret33#1;havoc __utac_acc__Specification1_spec__1_#t~ret33#1; 2260#L629 assume !(0 != __utac_acc__Specification1_spec__1_~tmp~4#1); 2259#L629-1 assume { :end_inline___utac_acc__Specification1_spec__1 } true; 2258#L675 assume { :end_inline_timeShift } true; 2190#L888-2 [2022-02-21 04:15:37,224 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:15:37,224 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 3 times [2022-02-21 04:15:37,224 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:15:37,224 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [608762668] [2022-02-21 04:15:37,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:15:37,224 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:15:37,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:15:37,235 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:15:37,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:15:37,257 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:15:37,258 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:15:37,258 INFO L85 PathProgramCache]: Analyzing trace with hash 1117719831, now seen corresponding path program 1 times [2022-02-21 04:15:37,258 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:15:37,258 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [892904303] [2022-02-21 04:15:37,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:15:37,258 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:15:37,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:15:37,294 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:15:37,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:15:37,306 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:15:37,307 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:15:37,307 INFO L85 PathProgramCache]: Analyzing trace with hash -133262117, now seen corresponding path program 1 times [2022-02-21 04:15:37,308 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:15:37,308 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [48774771] [2022-02-21 04:15:37,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:15:37,308 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:15:37,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:15:37,321 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:15:37,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:15:37,340 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:15:40,238 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 21.02 04:15:40 BoogieIcfgContainer [2022-02-21 04:15:40,242 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-02-21 04:15:40,242 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-02-21 04:15:40,243 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-02-21 04:15:40,243 INFO L275 PluginConnector]: Witness Printer initialized [2022-02-21 04:15:40,243 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 04:15:35" (3/4) ... [2022-02-21 04:15:40,247 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2022-02-21 04:15:40,297 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-02-21 04:15:40,297 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-02-21 04:15:40,298 INFO L158 Benchmark]: Toolchain (without parser) took 5559.05ms. Allocated memory was 92.3MB in the beginning and 167.8MB in the end (delta: 75.5MB). Free memory was 53.6MB in the beginning and 89.5MB in the end (delta: -35.9MB). Peak memory consumption was 38.8MB. Max. memory is 16.1GB. [2022-02-21 04:15:40,298 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 92.3MB. Free memory is still 71.3MB. There was no memory consumed. Max. memory is 16.1GB. [2022-02-21 04:15:40,298 INFO L158 Benchmark]: CACSL2BoogieTranslator took 416.95ms. Allocated memory is still 92.3MB. Free memory was 53.5MB in the beginning and 57.8MB in the end (delta: -4.4MB). Peak memory consumption was 4.4MB. Max. memory is 16.1GB. [2022-02-21 04:15:40,298 INFO L158 Benchmark]: Boogie Procedure Inliner took 62.75ms. Allocated memory is still 92.3MB. Free memory was 57.8MB in the beginning and 53.3MB in the end (delta: 4.6MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-02-21 04:15:40,299 INFO L158 Benchmark]: Boogie Preprocessor took 28.50ms. Allocated memory is still 92.3MB. Free memory was 53.3MB in the beginning and 50.4MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-02-21 04:15:40,299 INFO L158 Benchmark]: RCFGBuilder took 552.09ms. Allocated memory was 92.3MB in the beginning and 117.4MB in the end (delta: 25.2MB). Free memory was 50.4MB in the beginning and 80.7MB in the end (delta: -30.3MB). Peak memory consumption was 20.5MB. Max. memory is 16.1GB. [2022-02-21 04:15:40,299 INFO L158 Benchmark]: BuchiAutomizer took 4437.84ms. Allocated memory was 117.4MB in the beginning and 167.8MB in the end (delta: 50.3MB). Free memory was 80.7MB in the beginning and 91.6MB in the end (delta: -10.9MB). Peak memory consumption was 91.6MB. Max. memory is 16.1GB. [2022-02-21 04:15:40,299 INFO L158 Benchmark]: Witness Printer took 54.48ms. Allocated memory is still 167.8MB. Free memory was 91.6MB in the beginning and 89.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-02-21 04:15:40,300 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 0.18ms. Allocated memory is still 92.3MB. Free memory is still 71.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 416.95ms. Allocated memory is still 92.3MB. Free memory was 53.5MB in the beginning and 57.8MB in the end (delta: -4.4MB). Peak memory consumption was 4.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 62.75ms. Allocated memory is still 92.3MB. Free memory was 57.8MB in the beginning and 53.3MB in the end (delta: 4.6MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Preprocessor took 28.50ms. Allocated memory is still 92.3MB. Free memory was 53.3MB in the beginning and 50.4MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 552.09ms. Allocated memory was 92.3MB in the beginning and 117.4MB in the end (delta: 25.2MB). Free memory was 50.4MB in the beginning and 80.7MB in the end (delta: -30.3MB). Peak memory consumption was 20.5MB. Max. memory is 16.1GB. * BuchiAutomizer took 4437.84ms. Allocated memory was 117.4MB in the beginning and 167.8MB in the end (delta: 50.3MB). Free memory was 80.7MB in the beginning and 91.6MB in the end (delta: -10.9MB). Peak memory consumption was 91.6MB. Max. memory is 16.1GB. * Witness Printer took 54.48ms. Allocated memory is still 167.8MB. Free memory was 91.6MB in the beginning and 89.5MB in the end (delta: 2.1MB). 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 456 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 4.3s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 3.3s. Construction of modules took 0.0s. Büchi inclusion checks took 0.5s. 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 456 states and ocurred in iteration 2. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 398 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 398 mSDsluCounter, 775 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 318 mSDsCounter, 26 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 41 IncrementalHoareTripleChecker+Invalid, 67 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 26 mSolverCounterUnsat, 457 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: 888]: 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@7065a186=29, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7bdb5c32=0, NULL=0, tmp___0=0, head=0, pumpRunning=0, tmp___0=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4301c8eb=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5dd10c80=0, tmp___0=0, NULL=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@32b9bda4=0, tmp=0, retValue_acc=1, methaneLevelCritical=0, retValue_acc=0, tmp=0, retValue_acc=1, \result=0, retValue_acc=0, tmp=1, \result=1, \result=1, tmp___2=29, cleanupTimeShifts=4, tmp=1, \result=0, head=0, tmp___1=0, NULL=0, waterLevel=1, systemActive=1, retValue_acc=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1eba8d9b=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5bdfe2c=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@11d945c7=0, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5612e71c=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@cc90b2e=0, tmp=0, tmp=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 888]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L57] int waterLevel = 1; [L58] int methaneLevelCritical = 0; [L151] int cleanupTimeShifts = 4; [L422] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L651] int pumpRunning = 0; [L652] int systemActive = 1; [L230] int retValue_acc ; [L231] int tmp ; [L235] FCALL select_helpers() [L236] FCALL select_features() [L237] CALL, EXPR valid_product() [L973] int retValue_acc ; [L976] retValue_acc = 1 [L977] return (retValue_acc); [L237] RET, EXPR valid_product() [L237] tmp = valid_product() [L239] COND TRUE \read(tmp) [L241] FCALL setup() [L242] CALL runTest() [L221] CALL test() [L879] int splverifierCounter ; [L880] int tmp ; [L881] int tmp___0 ; [L882] int tmp___1 ; [L883] int tmp___2 ; [L886] splverifierCounter = 0 Loop: [L888] COND TRUE 1 [L890] COND TRUE splverifierCounter < 4 [L896] tmp = __VERIFIER_nondet_int() [L898] COND FALSE !(\read(tmp)) [L906] tmp___0 = __VERIFIER_nondet_int() [L908] COND FALSE !(\read(tmp___0)) [L916] tmp___2 = __VERIFIER_nondet_int() [L918] COND TRUE \read(tmp___2) [L920] CALL startSystem() [L864] systemActive = 1 [L920] RET startSystem() [L935] CALL timeShift() [L658] COND FALSE !(\read(pumpRunning)) [L665] COND TRUE \read(systemActive) [L667] CALL processEnvironment() [L713] int tmp ; [L716] COND FALSE !(\read(pumpRunning)) [L731] CALL processEnvironment__wrappee__methaneQuery() [L687] int tmp ; [L690] COND TRUE ! pumpRunning [L692] CALL, EXPR isHighWaterLevel() [L827] int retValue_acc ; [L828] int tmp ; [L829] int tmp___0 ; [L833] CALL, EXPR isHighWaterSensorDry() [L137] int retValue_acc ; [L140] COND TRUE waterLevel < 2 [L141] retValue_acc = 1 [L142] return (retValue_acc); [L833] RET, EXPR isHighWaterSensorDry() [L833] tmp = isHighWaterSensorDry() [L835] COND TRUE \read(tmp) [L836] tmp___0 = 0 [L840] retValue_acc = tmp___0 [L841] return (retValue_acc); [L692] RET, EXPR isHighWaterLevel() [L692] tmp = isHighWaterLevel() [L694] COND FALSE !(\read(tmp)) [L700] FCALL processEnvironment__wrappee__base() [L731] RET processEnvironment__wrappee__methaneQuery() [L667] RET processEnvironment() [L673] CALL __utac_acc__Specification1_spec__1() [L622] int tmp ; [L623] int tmp___0 ; [L627] CALL, EXPR isMethaneLevelCritical() [L96] int retValue_acc ; [L99] retValue_acc = methaneLevelCritical [L100] return (retValue_acc); [L627] RET, EXPR isMethaneLevelCritical() [L627] tmp = isMethaneLevelCritical() [L629] COND FALSE !(\read(tmp)) [L673] RET __utac_acc__Specification1_spec__1() [L935] RET timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2022-02-21 04:15:40,346 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)