./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/minepump_spec2_product01.cil.c --full-output -ea --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 03d7b7b3 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -ea -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i ../sv-benchmarks/c/product-lines/minepump_spec2_product01.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 47239d678f7aaf21a2fed69a46673ac27eceb8c724d4476eded10389fccd5c92 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-03d7b7b [2022-02-21 04:15:46,028 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-21 04:15:46,030 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-21 04:15:46,066 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-02-21 04:15:46,067 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-02-21 04:15:46,074 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-02-21 04:15:46,075 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-02-21 04:15:46,077 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-02-21 04:15:46,078 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-02-21 04:15:46,083 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-02-21 04:15:46,083 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-02-21 04:15:46,084 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-02-21 04:15:46,084 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-21 04:15:46,086 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-21 04:15:46,087 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-21 04:15:46,090 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-21 04:15:46,090 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-21 04:15:46,091 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-21 04:15:46,092 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-21 04:15:46,094 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-21 04:15:46,097 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-21 04:15:46,097 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-21 04:15:46,098 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-21 04:15:46,099 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-21 04:15:46,102 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-02-21 04:15:46,102 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-02-21 04:15:46,102 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-02-21 04:15:46,103 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-02-21 04:15:46,104 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-02-21 04:15:46,104 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-02-21 04:15:46,104 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-02-21 04:15:46,105 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-02-21 04:15:46,106 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-02-21 04:15:46,107 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-02-21 04:15:46,108 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-02-21 04:15:46,108 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-02-21 04:15:46,108 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-02-21 04:15:46,108 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-02-21 04:15:46,109 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-21 04:15:46,109 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-21 04:15:46,109 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-21 04:15:46,110 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2022-02-21 04:15:46,135 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-21 04:15:46,135 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-21 04:15:46,136 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-02-21 04:15:46,136 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-02-21 04:15:46,137 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-02-21 04:15:46,137 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-02-21 04:15:46,137 INFO L138 SettingsManager]: * Use SBE=true [2022-02-21 04:15:46,137 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-02-21 04:15:46,137 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-02-21 04:15:46,137 INFO L138 SettingsManager]: * Use old map elimination=false [2022-02-21 04:15:46,138 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-02-21 04:15:46,138 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-02-21 04:15:46,138 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-02-21 04:15:46,138 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-21 04:15:46,139 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-21 04:15:46,139 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-02-21 04:15:46,139 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-21 04:15:46,139 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-21 04:15:46,139 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-21 04:15:46,139 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-02-21 04:15:46,140 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-02-21 04:15:46,140 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-02-21 04:15:46,140 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-21 04:15:46,140 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-21 04:15:46,140 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-02-21 04:15:46,140 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-21 04:15:46,140 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-02-21 04:15:46,140 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-21 04:15:46,141 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-21 04:15:46,141 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-21 04:15:46,141 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-02-21 04:15:46,142 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-02-21 04:15:46,142 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 47239d678f7aaf21a2fed69a46673ac27eceb8c724d4476eded10389fccd5c92 [2022-02-21 04:15:46,327 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-21 04:15:46,342 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-21 04:15:46,344 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-21 04:15:46,345 INFO L271 PluginConnector]: Initializing CDTParser... [2022-02-21 04:15:46,345 INFO L275 PluginConnector]: CDTParser initialized [2022-02-21 04:15:46,346 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec2_product01.cil.c [2022-02-21 04:15:46,395 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1a25103fc/f2cf52c315694840a8fe370c7b1ce839/FLAG637c4c6b7 [2022-02-21 04:15:46,797 INFO L306 CDTParser]: Found 1 translation units. [2022-02-21 04:15:46,798 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec2_product01.cil.c [2022-02-21 04:15:46,817 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1a25103fc/f2cf52c315694840a8fe370c7b1ce839/FLAG637c4c6b7 [2022-02-21 04:15:46,829 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1a25103fc/f2cf52c315694840a8fe370c7b1ce839 [2022-02-21 04:15:46,831 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-21 04:15:46,833 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-02-21 04:15:46,834 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-02-21 04:15:46,834 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-02-21 04:15:46,837 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-02-21 04:15:46,838 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.02 04:15:46" (1/1) ... [2022-02-21 04:15:46,838 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1f768ad2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:15:46, skipping insertion in model container [2022-02-21 04:15:46,839 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.02 04:15:46" (1/1) ... [2022-02-21 04:15:46,843 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-02-21 04:15:46,887 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-02-21 04:15:47,133 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec2_product01.cil.c[17118,17131] [2022-02-21 04:15:47,134 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-21 04:15:47,143 INFO L203 MainTranslator]: Completed pre-run [2022-02-21 04:15:47,220 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec2_product01.cil.c[17118,17131] [2022-02-21 04:15:47,221 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-21 04:15:47,235 INFO L208 MainTranslator]: Completed translation [2022-02-21 04:15:47,236 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:15:47 WrapperNode [2022-02-21 04:15:47,236 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-02-21 04:15:47,237 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-02-21 04:15:47,237 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-02-21 04:15:47,238 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-02-21 04:15:47,242 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:15:47" (1/1) ... [2022-02-21 04:15:47,264 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:15:47" (1/1) ... [2022-02-21 04:15:47,289 INFO L137 Inliner]: procedures = 50, calls = 145, calls flagged for inlining = 42, calls inlined = 33, statements flattened = 294 [2022-02-21 04:15:47,289 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-02-21 04:15:47,290 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-21 04:15:47,290 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-21 04:15:47,290 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-21 04:15:47,296 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:15:47" (1/1) ... [2022-02-21 04:15:47,296 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:15:47" (1/1) ... [2022-02-21 04:15:47,299 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:15:47" (1/1) ... [2022-02-21 04:15:47,300 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:15:47" (1/1) ... [2022-02-21 04:15:47,305 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:15:47" (1/1) ... [2022-02-21 04:15:47,319 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:15:47" (1/1) ... [2022-02-21 04:15:47,320 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:15:47" (1/1) ... [2022-02-21 04:15:47,321 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-21 04:15:47,322 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-21 04:15:47,322 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-21 04:15:47,322 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-21 04:15:47,323 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:15:47" (1/1) ... [2022-02-21 04:15:47,330 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-02-21 04:15:47,339 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-21 04:15:47,386 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 04:15:47,391 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 04:15:47,411 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-02-21 04:15:47,411 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-02-21 04:15:47,411 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-21 04:15:47,411 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-21 04:15:47,471 INFO L234 CfgBuilder]: Building ICFG [2022-02-21 04:15:47,472 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-21 04:15:47,792 INFO L275 CfgBuilder]: Performing block encoding [2022-02-21 04:15:47,798 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-21 04:15:47,798 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-02-21 04:15:47,800 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 04:15:47 BoogieIcfgContainer [2022-02-21 04:15:47,800 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-21 04:15:47,802 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-02-21 04:15:47,802 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-02-21 04:15:47,804 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-02-21 04:15:47,804 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-02-21 04:15:47,805 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 21.02 04:15:46" (1/3) ... [2022-02-21 04:15:47,805 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@74baefe6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.02 04:15:47, skipping insertion in model container [2022-02-21 04:15:47,805 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-02-21 04:15:47,806 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:15:47" (2/3) ... [2022-02-21 04:15:47,806 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@74baefe6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.02 04:15:47, skipping insertion in model container [2022-02-21 04:15:47,806 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-02-21 04:15:47,806 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 04:15:47" (3/3) ... [2022-02-21 04:15:47,807 INFO L388 chiAutomizerObserver]: Analyzing ICFG minepump_spec2_product01.cil.c [2022-02-21 04:15:47,860 INFO L359 BuchiCegarLoop]: Interprodecural is true [2022-02-21 04:15:47,860 INFO L360 BuchiCegarLoop]: Hoare is false [2022-02-21 04:15:47,860 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-02-21 04:15:47,861 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-02-21 04:15:47,861 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-02-21 04:15:47,861 INFO L364 BuchiCegarLoop]: Difference is false [2022-02-21 04:15:47,861 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-02-21 04:15:47,861 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2022-02-21 04:15:47,875 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 79 states, 78 states have (on average 1.3974358974358974) internal successors, (109), 78 states have internal predecessors, (109), 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 04:15:47,905 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 48 [2022-02-21 04:15:47,905 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:15:47,905 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:15:47,909 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:15:47,910 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:15:47,910 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2022-02-21 04:15:47,911 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 79 states, 78 states have (on average 1.3974358974358974) internal successors, (109), 78 states have internal predecessors, (109), 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 04:15:47,924 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 48 [2022-02-21 04:15:47,924 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:15:47,924 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:15:47,925 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:15:47,925 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:15:47,932 INFO L791 eck$LassoCheckResult]: Stem: 64#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(13, 4);call #Ultimate.allocInit(3, 5);call write~init~int(79, 5, 0, 1);call write~init~int(110, 5, 1, 1);call write~init~int(0, 5, 2, 1);call #Ultimate.allocInit(4, 6);call write~init~int(79, 6, 0, 1);call write~init~int(102, 6, 1, 1);call write~init~int(102, 6, 2, 1);call write~init~int(0, 6, 3, 1);call #Ultimate.allocInit(7, 7);call write~init~int(44, 7, 0, 1);call write~init~int(80, 7, 1, 1);call write~init~int(117, 7, 2, 1);call write~init~int(109, 7, 3, 1);call write~init~int(112, 7, 4, 1);call write~init~int(58, 7, 5, 1);call write~init~int(0, 7, 6, 1);call #Ultimate.allocInit(3, 8);call write~init~int(79, 8, 0, 1);call write~init~int(110, 8, 1, 1);call write~init~int(0, 8, 2, 1);call #Ultimate.allocInit(4, 9);call write~init~int(79, 9, 0, 1);call write~init~int(102, 9, 1, 1);call write~init~int(102, 9, 2, 1);call write~init~int(0, 9, 3, 1);call #Ultimate.allocInit(3, 10);call write~init~int(41, 10, 0, 1);call write~init~int(32, 10, 1, 1);call write~init~int(0, 10, 2, 1);call #Ultimate.allocInit(2, 11);call write~init~int(10, 11, 0, 1);call write~init~int(0, 11, 1, 1);call #Ultimate.allocInit(30, 12);call #Ultimate.allocInit(9, 13);call #Ultimate.allocInit(21, 14);call #Ultimate.allocInit(30, 15);call #Ultimate.allocInit(9, 16);call #Ultimate.allocInit(21, 17);call #Ultimate.allocInit(30, 18);call #Ultimate.allocInit(9, 19);call #Ultimate.allocInit(25, 20);call #Ultimate.allocInit(30, 21);call #Ultimate.allocInit(9, 22);call #Ultimate.allocInit(25, 23);call #Ultimate.allocInit(13, 24);call #Ultimate.allocInit(7, 25);call write~init~int(44, 25, 0, 1);call write~init~int(77, 25, 1, 1);call write~init~int(101, 25, 2, 1);call write~init~int(116, 25, 3, 1);call write~init~int(104, 25, 4, 1);call write~init~int(58, 25, 5, 1);call write~init~int(0, 25, 6, 1);call #Ultimate.allocInit(5, 26);call write~init~int(67, 26, 0, 1);call write~init~int(82, 26, 1, 1);call write~init~int(73, 26, 2, 1);call write~init~int(84, 26, 3, 1);call write~init~int(0, 26, 4, 1);call #Ultimate.allocInit(3, 27);call write~init~int(79, 27, 0, 1);call write~init~int(75, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(41, 28, 0, 1);call write~init~int(0, 28, 1, 1);~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~methAndRunningLastTime~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 50#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret18#1, main_~retValue_acc~4#1, main_~tmp~1#1;havoc main_~retValue_acc~4#1;havoc main_~tmp~1#1;assume { :begin_inline_select_helpers } true; 5#L259true assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 63#L252true assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~3#1;havoc valid_product_~retValue_acc~3#1;valid_product_~retValue_acc~3#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~3#1; 35#L267true main_#t~ret18#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~1#1 := main_#t~ret18#1;havoc main_#t~ret18#1; 28#L356true assume 0 != main_~tmp~1#1;assume { :begin_inline_setup } true; 11#L331true assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification2_spec__1 } true;~methAndRunningLastTime~0 := 0; 75#L377true assume { :end_inline___utac_acc__Specification2_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet13#1, test_#t~nondet14#1, test_#t~nondet15#1, test_#t~nondet16#1, test_~splverifierCounter~0#1, test_~tmp~0#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~0#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 30#L179-2true [2022-02-21 04:15:47,933 INFO L793 eck$LassoCheckResult]: Loop: 30#L179-2true assume !false; 3#L180true assume test_~splverifierCounter~0#1 < 4; 38#L181true test_~tmp~0#1 := test_#t~nondet13#1;havoc test_#t~nondet13#1; 25#L189true assume !(0 != test_~tmp~0#1); 60#L189-2true test_~tmp___0~0#1 := test_#t~nondet14#1;havoc test_#t~nondet14#1; 62#L199true assume !(0 != test_~tmp___0~0#1); 51#L199-2true test_~tmp___2~0#1 := test_#t~nondet15#1;havoc test_#t~nondet15#1; 54#L209true assume 0 != test_~tmp___2~0#1; 67#L215-2true assume { :begin_inline_timeShift } true; 46#L66true assume !(0 != ~pumpRunning~0); 55#L66-2true assume !(0 != ~systemActive~0); 56#L73-1true assume { :begin_inline___utac_acc__Specification2_spec__2 } true;havoc __utac_acc__Specification2_spec__2_#t~ret19#1, __utac_acc__Specification2_spec__2_#t~ret20#1, __utac_acc__Specification2_spec__2_~tmp~2#1, __utac_acc__Specification2_spec__2_~tmp___0~1#1;havoc __utac_acc__Specification2_spec__2_~tmp~2#1;havoc __utac_acc__Specification2_spec__2_~tmp___0~1#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~8#1;havoc isMethaneLevelCritical_~retValue_acc~8#1;isMethaneLevelCritical_~retValue_acc~8#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~8#1; 37#L820true __utac_acc__Specification2_spec__2_#t~ret19#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification2_spec__2_~tmp~2#1 := __utac_acc__Specification2_spec__2_#t~ret19#1;havoc __utac_acc__Specification2_spec__2_#t~ret19#1; 26#L388true assume !(0 != __utac_acc__Specification2_spec__2_~tmp~2#1);~methAndRunningLastTime~0 := 0; 47#L388-1true assume { :end_inline___utac_acc__Specification2_spec__2 } true; 33#L83true assume { :end_inline_timeShift } true; 30#L179-2true [2022-02-21 04:15:47,936 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:15:47,936 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 1 times [2022-02-21 04:15:47,942 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:15:47,943 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [750723644] [2022-02-21 04:15:47,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:15:47,944 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:15:48,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:15:48,059 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:15:48,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:15:48,110 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:15:48,112 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:15:48,113 INFO L85 PathProgramCache]: Analyzing trace with hash 980400586, now seen corresponding path program 1 times [2022-02-21 04:15:48,113 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:15:48,114 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1159920819] [2022-02-21 04:15:48,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:15:48,114 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:15:48,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:15:48,136 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:15:48,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:15:48,145 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:15:48,147 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:15:48,147 INFO L85 PathProgramCache]: Analyzing trace with hash 818113203, now seen corresponding path program 1 times [2022-02-21 04:15:48,148 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:15:48,148 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1428726627] [2022-02-21 04:15:48,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:15:48,148 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:15:48,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-21 04:15:48,273 INFO L290 TraceCheckUtils]: 0: Hoare triple {87#true} assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(13, 4);call #Ultimate.allocInit(3, 5);call write~init~int(79, 5, 0, 1);call write~init~int(110, 5, 1, 1);call write~init~int(0, 5, 2, 1);call #Ultimate.allocInit(4, 6);call write~init~int(79, 6, 0, 1);call write~init~int(102, 6, 1, 1);call write~init~int(102, 6, 2, 1);call write~init~int(0, 6, 3, 1);call #Ultimate.allocInit(7, 7);call write~init~int(44, 7, 0, 1);call write~init~int(80, 7, 1, 1);call write~init~int(117, 7, 2, 1);call write~init~int(109, 7, 3, 1);call write~init~int(112, 7, 4, 1);call write~init~int(58, 7, 5, 1);call write~init~int(0, 7, 6, 1);call #Ultimate.allocInit(3, 8);call write~init~int(79, 8, 0, 1);call write~init~int(110, 8, 1, 1);call write~init~int(0, 8, 2, 1);call #Ultimate.allocInit(4, 9);call write~init~int(79, 9, 0, 1);call write~init~int(102, 9, 1, 1);call write~init~int(102, 9, 2, 1);call write~init~int(0, 9, 3, 1);call #Ultimate.allocInit(3, 10);call write~init~int(41, 10, 0, 1);call write~init~int(32, 10, 1, 1);call write~init~int(0, 10, 2, 1);call #Ultimate.allocInit(2, 11);call write~init~int(10, 11, 0, 1);call write~init~int(0, 11, 1, 1);call #Ultimate.allocInit(30, 12);call #Ultimate.allocInit(9, 13);call #Ultimate.allocInit(21, 14);call #Ultimate.allocInit(30, 15);call #Ultimate.allocInit(9, 16);call #Ultimate.allocInit(21, 17);call #Ultimate.allocInit(30, 18);call #Ultimate.allocInit(9, 19);call #Ultimate.allocInit(25, 20);call #Ultimate.allocInit(30, 21);call #Ultimate.allocInit(9, 22);call #Ultimate.allocInit(25, 23);call #Ultimate.allocInit(13, 24);call #Ultimate.allocInit(7, 25);call write~init~int(44, 25, 0, 1);call write~init~int(77, 25, 1, 1);call write~init~int(101, 25, 2, 1);call write~init~int(116, 25, 3, 1);call write~init~int(104, 25, 4, 1);call write~init~int(58, 25, 5, 1);call write~init~int(0, 25, 6, 1);call #Ultimate.allocInit(5, 26);call write~init~int(67, 26, 0, 1);call write~init~int(82, 26, 1, 1);call write~init~int(73, 26, 2, 1);call write~init~int(84, 26, 3, 1);call write~init~int(0, 26, 4, 1);call #Ultimate.allocInit(3, 27);call write~init~int(79, 27, 0, 1);call write~init~int(75, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(41, 28, 0, 1);call write~init~int(0, 28, 1, 1);~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~methAndRunningLastTime~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; {89#(= 1 ~systemActive~0)} is VALID [2022-02-21 04:15:48,273 INFO L290 TraceCheckUtils]: 1: Hoare triple {89#(= 1 ~systemActive~0)} assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret18#1, main_~retValue_acc~4#1, main_~tmp~1#1;havoc main_~retValue_acc~4#1;havoc main_~tmp~1#1;assume { :begin_inline_select_helpers } true; {89#(= 1 ~systemActive~0)} is VALID [2022-02-21 04:15:48,274 INFO L290 TraceCheckUtils]: 2: Hoare triple {89#(= 1 ~systemActive~0)} assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; {89#(= 1 ~systemActive~0)} is VALID [2022-02-21 04:15:48,275 INFO L290 TraceCheckUtils]: 3: Hoare triple {89#(= 1 ~systemActive~0)} assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~3#1;havoc valid_product_~retValue_acc~3#1;valid_product_~retValue_acc~3#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~3#1; {90#(= |ULTIMATE.start_valid_product_#res#1| ~systemActive~0)} is VALID [2022-02-21 04:15:48,275 INFO L290 TraceCheckUtils]: 4: Hoare triple {90#(= |ULTIMATE.start_valid_product_#res#1| ~systemActive~0)} main_#t~ret18#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~1#1 := main_#t~ret18#1;havoc main_#t~ret18#1; {91#(= |ULTIMATE.start_main_~tmp~1#1| ~systemActive~0)} is VALID [2022-02-21 04:15:48,276 INFO L290 TraceCheckUtils]: 5: Hoare triple {91#(= |ULTIMATE.start_main_~tmp~1#1| ~systemActive~0)} assume 0 != main_~tmp~1#1;assume { :begin_inline_setup } true; {92#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:15:48,277 INFO L290 TraceCheckUtils]: 6: Hoare triple {92#(not (= 0 ~systemActive~0))} assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification2_spec__1 } true;~methAndRunningLastTime~0 := 0; {92#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:15:48,277 INFO L290 TraceCheckUtils]: 7: Hoare triple {92#(not (= 0 ~systemActive~0))} assume { :end_inline___utac_acc__Specification2_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet13#1, test_#t~nondet14#1, test_#t~nondet15#1, test_#t~nondet16#1, test_~splverifierCounter~0#1, test_~tmp~0#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~0#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; {92#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:15:48,278 INFO L290 TraceCheckUtils]: 8: Hoare triple {92#(not (= 0 ~systemActive~0))} assume !false; {92#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:15:48,279 INFO L290 TraceCheckUtils]: 9: Hoare triple {92#(not (= 0 ~systemActive~0))} assume test_~splverifierCounter~0#1 < 4; {92#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:15:48,279 INFO L290 TraceCheckUtils]: 10: Hoare triple {92#(not (= 0 ~systemActive~0))} test_~tmp~0#1 := test_#t~nondet13#1;havoc test_#t~nondet13#1; {92#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:15:48,280 INFO L290 TraceCheckUtils]: 11: Hoare triple {92#(not (= 0 ~systemActive~0))} assume !(0 != test_~tmp~0#1); {92#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:15:48,280 INFO L290 TraceCheckUtils]: 12: Hoare triple {92#(not (= 0 ~systemActive~0))} test_~tmp___0~0#1 := test_#t~nondet14#1;havoc test_#t~nondet14#1; {92#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:15:48,281 INFO L290 TraceCheckUtils]: 13: Hoare triple {92#(not (= 0 ~systemActive~0))} assume !(0 != test_~tmp___0~0#1); {92#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:15:48,281 INFO L290 TraceCheckUtils]: 14: Hoare triple {92#(not (= 0 ~systemActive~0))} test_~tmp___2~0#1 := test_#t~nondet15#1;havoc test_#t~nondet15#1; {92#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:15:48,282 INFO L290 TraceCheckUtils]: 15: Hoare triple {92#(not (= 0 ~systemActive~0))} assume 0 != test_~tmp___2~0#1; {92#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:15:48,282 INFO L290 TraceCheckUtils]: 16: Hoare triple {92#(not (= 0 ~systemActive~0))} assume { :begin_inline_timeShift } true; {92#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:15:48,283 INFO L290 TraceCheckUtils]: 17: Hoare triple {92#(not (= 0 ~systemActive~0))} assume !(0 != ~pumpRunning~0); {92#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:15:48,283 INFO L290 TraceCheckUtils]: 18: Hoare triple {92#(not (= 0 ~systemActive~0))} assume !(0 != ~systemActive~0); {88#false} is VALID [2022-02-21 04:15:48,284 INFO L290 TraceCheckUtils]: 19: Hoare triple {88#false} assume { :begin_inline___utac_acc__Specification2_spec__2 } true;havoc __utac_acc__Specification2_spec__2_#t~ret19#1, __utac_acc__Specification2_spec__2_#t~ret20#1, __utac_acc__Specification2_spec__2_~tmp~2#1, __utac_acc__Specification2_spec__2_~tmp___0~1#1;havoc __utac_acc__Specification2_spec__2_~tmp~2#1;havoc __utac_acc__Specification2_spec__2_~tmp___0~1#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~8#1;havoc isMethaneLevelCritical_~retValue_acc~8#1;isMethaneLevelCritical_~retValue_acc~8#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~8#1; {88#false} is VALID [2022-02-21 04:15:48,284 INFO L290 TraceCheckUtils]: 20: Hoare triple {88#false} __utac_acc__Specification2_spec__2_#t~ret19#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification2_spec__2_~tmp~2#1 := __utac_acc__Specification2_spec__2_#t~ret19#1;havoc __utac_acc__Specification2_spec__2_#t~ret19#1; {88#false} is VALID [2022-02-21 04:15:48,285 INFO L290 TraceCheckUtils]: 21: Hoare triple {88#false} assume !(0 != __utac_acc__Specification2_spec__2_~tmp~2#1);~methAndRunningLastTime~0 := 0; {88#false} is VALID [2022-02-21 04:15:48,285 INFO L290 TraceCheckUtils]: 22: Hoare triple {88#false} assume { :end_inline___utac_acc__Specification2_spec__2 } true; {88#false} is VALID [2022-02-21 04:15:48,285 INFO L290 TraceCheckUtils]: 23: Hoare triple {88#false} assume { :end_inline_timeShift } true; {88#false} is VALID [2022-02-21 04:15:48,286 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 04:15:48,287 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-21 04:15:48,287 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1428726627] [2022-02-21 04:15:48,288 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1428726627] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-21 04:15:48,288 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-21 04:15:48,288 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-21 04:15:48,288 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [452795535] [2022-02-21 04:15:48,289 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-21 04:15:48,394 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-21 04:15:48,415 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-02-21 04:15:48,416 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-02-21 04:15:48,418 INFO L87 Difference]: Start difference. First operand has 79 states, 78 states have (on average 1.3974358974358974) internal successors, (109), 78 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 6 states, 6 states have (on average 4.0) internal successors, (24), 5 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:15:48,615 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:15:48,615 INFO L93 Difference]: Finished difference Result 76 states and 95 transitions. [2022-02-21 04:15:48,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-21 04:15:48,616 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with has 6 states, 6 states have (on average 4.0) internal successors, (24), 5 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:15:48,647 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 24 edges. 24 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-02-21 04:15:48,660 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 76 states and 95 transitions. [2022-02-21 04:15:48,666 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 44 [2022-02-21 04:15:48,671 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 76 states to 66 states and 85 transitions. [2022-02-21 04:15:48,672 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 66 [2022-02-21 04:15:48,674 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 66 [2022-02-21 04:15:48,674 INFO L73 IsDeterministic]: Start isDeterministic. Operand 66 states and 85 transitions. [2022-02-21 04:15:48,675 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-02-21 04:15:48,675 INFO L681 BuchiCegarLoop]: Abstraction has 66 states and 85 transitions. [2022-02-21 04:15:48,687 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states and 85 transitions. [2022-02-21 04:15:48,702 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 66. [2022-02-21 04:15:48,702 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-02-21 04:15:48,706 INFO L82 GeneralOperation]: Start isEquivalent. First operand 66 states and 85 transitions. Second operand has 66 states, 66 states have (on average 1.2878787878787878) internal successors, (85), 65 states have internal predecessors, (85), 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 04:15:48,708 INFO L74 IsIncluded]: Start isIncluded. First operand 66 states and 85 transitions. Second operand has 66 states, 66 states have (on average 1.2878787878787878) internal successors, (85), 65 states have internal predecessors, (85), 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 04:15:48,714 INFO L87 Difference]: Start difference. First operand 66 states and 85 transitions. Second operand has 66 states, 66 states have (on average 1.2878787878787878) internal successors, (85), 65 states have internal predecessors, (85), 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 04:15:48,720 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:15:48,720 INFO L93 Difference]: Finished difference Result 66 states and 85 transitions. [2022-02-21 04:15:48,720 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 85 transitions. [2022-02-21 04:15:48,721 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:15:48,721 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:15:48,721 INFO L74 IsIncluded]: Start isIncluded. First operand has 66 states, 66 states have (on average 1.2878787878787878) internal successors, (85), 65 states have internal predecessors, (85), 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 66 states and 85 transitions. [2022-02-21 04:15:48,721 INFO L87 Difference]: Start difference. First operand has 66 states, 66 states have (on average 1.2878787878787878) internal successors, (85), 65 states have internal predecessors, (85), 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 66 states and 85 transitions. [2022-02-21 04:15:48,723 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:15:48,723 INFO L93 Difference]: Finished difference Result 66 states and 85 transitions. [2022-02-21 04:15:48,724 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 85 transitions. [2022-02-21 04:15:48,724 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:15:48,724 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:15:48,724 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-02-21 04:15:48,724 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-02-21 04:15:48,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66 states, 66 states have (on average 1.2878787878787878) internal successors, (85), 65 states have internal predecessors, (85), 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 04:15:48,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 85 transitions. [2022-02-21 04:15:48,728 INFO L704 BuchiCegarLoop]: Abstraction has 66 states and 85 transitions. [2022-02-21 04:15:48,728 INFO L587 BuchiCegarLoop]: Abstraction has 66 states and 85 transitions. [2022-02-21 04:15:48,728 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2022-02-21 04:15:48,728 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 66 states and 85 transitions. [2022-02-21 04:15:48,729 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 44 [2022-02-21 04:15:48,729 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:15:48,729 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:15:48,729 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:15:48,729 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 04:15:48,730 INFO L791 eck$LassoCheckResult]: Stem: 235#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(13, 4);call #Ultimate.allocInit(3, 5);call write~init~int(79, 5, 0, 1);call write~init~int(110, 5, 1, 1);call write~init~int(0, 5, 2, 1);call #Ultimate.allocInit(4, 6);call write~init~int(79, 6, 0, 1);call write~init~int(102, 6, 1, 1);call write~init~int(102, 6, 2, 1);call write~init~int(0, 6, 3, 1);call #Ultimate.allocInit(7, 7);call write~init~int(44, 7, 0, 1);call write~init~int(80, 7, 1, 1);call write~init~int(117, 7, 2, 1);call write~init~int(109, 7, 3, 1);call write~init~int(112, 7, 4, 1);call write~init~int(58, 7, 5, 1);call write~init~int(0, 7, 6, 1);call #Ultimate.allocInit(3, 8);call write~init~int(79, 8, 0, 1);call write~init~int(110, 8, 1, 1);call write~init~int(0, 8, 2, 1);call #Ultimate.allocInit(4, 9);call write~init~int(79, 9, 0, 1);call write~init~int(102, 9, 1, 1);call write~init~int(102, 9, 2, 1);call write~init~int(0, 9, 3, 1);call #Ultimate.allocInit(3, 10);call write~init~int(41, 10, 0, 1);call write~init~int(32, 10, 1, 1);call write~init~int(0, 10, 2, 1);call #Ultimate.allocInit(2, 11);call write~init~int(10, 11, 0, 1);call write~init~int(0, 11, 1, 1);call #Ultimate.allocInit(30, 12);call #Ultimate.allocInit(9, 13);call #Ultimate.allocInit(21, 14);call #Ultimate.allocInit(30, 15);call #Ultimate.allocInit(9, 16);call #Ultimate.allocInit(21, 17);call #Ultimate.allocInit(30, 18);call #Ultimate.allocInit(9, 19);call #Ultimate.allocInit(25, 20);call #Ultimate.allocInit(30, 21);call #Ultimate.allocInit(9, 22);call #Ultimate.allocInit(25, 23);call #Ultimate.allocInit(13, 24);call #Ultimate.allocInit(7, 25);call write~init~int(44, 25, 0, 1);call write~init~int(77, 25, 1, 1);call write~init~int(101, 25, 2, 1);call write~init~int(116, 25, 3, 1);call write~init~int(104, 25, 4, 1);call write~init~int(58, 25, 5, 1);call write~init~int(0, 25, 6, 1);call #Ultimate.allocInit(5, 26);call write~init~int(67, 26, 0, 1);call write~init~int(82, 26, 1, 1);call write~init~int(73, 26, 2, 1);call write~init~int(84, 26, 3, 1);call write~init~int(0, 26, 4, 1);call #Ultimate.allocInit(3, 27);call write~init~int(79, 27, 0, 1);call write~init~int(75, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(41, 28, 0, 1);call write~init~int(0, 28, 1, 1);~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~methAndRunningLastTime~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 225#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret18#1, main_~retValue_acc~4#1, main_~tmp~1#1;havoc main_~retValue_acc~4#1;havoc main_~tmp~1#1;assume { :begin_inline_select_helpers } true; 176#L259 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 177#L252 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~3#1;havoc valid_product_~retValue_acc~3#1;valid_product_~retValue_acc~3#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~3#1; 216#L267 main_#t~ret18#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~1#1 := main_#t~ret18#1;havoc main_#t~ret18#1; 211#L356 assume 0 != main_~tmp~1#1;assume { :begin_inline_setup } true; 185#L331 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification2_spec__1 } true;~methAndRunningLastTime~0 := 0; 186#L377 assume { :end_inline___utac_acc__Specification2_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet13#1, test_#t~nondet14#1, test_#t~nondet15#1, test_#t~nondet16#1, test_~splverifierCounter~0#1, test_~tmp~0#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~0#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 212#L179-2 [2022-02-21 04:15:48,730 INFO L793 eck$LassoCheckResult]: Loop: 212#L179-2 assume !false; 173#L180 assume test_~splverifierCounter~0#1 < 4; 174#L181 test_~tmp~0#1 := test_#t~nondet13#1;havoc test_#t~nondet13#1; 207#L189 assume !(0 != test_~tmp~0#1); 208#L189-2 test_~tmp___0~0#1 := test_#t~nondet14#1;havoc test_#t~nondet14#1; 234#L199 assume !(0 != test_~tmp___0~0#1); 181#L199-2 test_~tmp___2~0#1 := test_#t~nondet15#1;havoc test_#t~nondet15#1; 228#L209 assume 0 != test_~tmp___2~0#1; 229#L215-2 assume { :begin_inline_timeShift } true; 222#L66 assume !(0 != ~pumpRunning~0); 223#L66-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true; 231#L90 assume { :end_inline_processEnvironment } true; 232#L73-1 assume { :begin_inline___utac_acc__Specification2_spec__2 } true;havoc __utac_acc__Specification2_spec__2_#t~ret19#1, __utac_acc__Specification2_spec__2_#t~ret20#1, __utac_acc__Specification2_spec__2_~tmp~2#1, __utac_acc__Specification2_spec__2_~tmp___0~1#1;havoc __utac_acc__Specification2_spec__2_~tmp~2#1;havoc __utac_acc__Specification2_spec__2_~tmp___0~1#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~8#1;havoc isMethaneLevelCritical_~retValue_acc~8#1;isMethaneLevelCritical_~retValue_acc~8#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~8#1; 217#L820 __utac_acc__Specification2_spec__2_#t~ret19#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification2_spec__2_~tmp~2#1 := __utac_acc__Specification2_spec__2_#t~ret19#1;havoc __utac_acc__Specification2_spec__2_#t~ret19#1; 209#L388 assume !(0 != __utac_acc__Specification2_spec__2_~tmp~2#1);~methAndRunningLastTime~0 := 0; 202#L388-1 assume { :end_inline___utac_acc__Specification2_spec__2 } true; 213#L83 assume { :end_inline_timeShift } true; 212#L179-2 [2022-02-21 04:15:48,730 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:15:48,730 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 2 times [2022-02-21 04:15:48,731 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:15:48,731 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1137222306] [2022-02-21 04:15:48,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:15:48,731 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:15:48,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:15:48,747 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:15:48,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:15:48,765 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:15:48,765 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:15:48,766 INFO L85 PathProgramCache]: Analyzing trace with hash 955548009, now seen corresponding path program 1 times [2022-02-21 04:15:48,766 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:15:48,766 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [515498034] [2022-02-21 04:15:48,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:15:48,767 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:15:48,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:15:48,771 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:15:48,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:15:48,775 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:15:48,775 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:15:48,775 INFO L85 PathProgramCache]: Analyzing trace with hash 219606432, now seen corresponding path program 1 times [2022-02-21 04:15:48,775 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:15:48,775 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1541636751] [2022-02-21 04:15:48,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:15:48,776 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:15:48,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:15:48,786 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:15:48,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:15:48,797 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:15:51,333 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 21.02 04:15:51 BoogieIcfgContainer [2022-02-21 04:15:51,333 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-02-21 04:15:51,334 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-02-21 04:15:51,334 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-02-21 04:15:51,334 INFO L275 PluginConnector]: Witness Printer initialized [2022-02-21 04:15:51,334 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 04:15:47" (3/4) ... [2022-02-21 04:15:51,336 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2022-02-21 04:15:51,367 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-02-21 04:15:51,367 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-02-21 04:15:51,373 INFO L158 Benchmark]: Toolchain (without parser) took 4540.05ms. Allocated memory was 117.4MB in the beginning and 182.5MB in the end (delta: 65.0MB). Free memory was 82.6MB in the beginning and 150.6MB in the end (delta: -67.9MB). There was no memory consumed. Max. memory is 16.1GB. [2022-02-21 04:15:51,373 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 79.7MB. Free memory was 34.2MB in the beginning and 34.1MB in the end (delta: 70.0kB). There was no memory consumed. Max. memory is 16.1GB. [2022-02-21 04:15:51,374 INFO L158 Benchmark]: CACSL2BoogieTranslator took 402.75ms. Allocated memory is still 117.4MB. Free memory was 82.6MB in the beginning and 81.0MB in the end (delta: 1.7MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-02-21 04:15:51,374 INFO L158 Benchmark]: Boogie Procedure Inliner took 51.84ms. Allocated memory is still 117.4MB. Free memory was 80.6MB in the beginning and 78.1MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-02-21 04:15:51,374 INFO L158 Benchmark]: Boogie Preprocessor took 32.01ms. Allocated memory is still 117.4MB. Free memory was 78.1MB in the beginning and 76.4MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-02-21 04:15:51,375 INFO L158 Benchmark]: RCFGBuilder took 478.43ms. Allocated memory is still 117.4MB. Free memory was 76.4MB in the beginning and 59.2MB in the end (delta: 17.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-02-21 04:15:51,375 INFO L158 Benchmark]: BuchiAutomizer took 3531.65ms. Allocated memory was 117.4MB in the beginning and 182.5MB in the end (delta: 65.0MB). Free memory was 59.2MB in the beginning and 152.7MB in the end (delta: -93.5MB). Peak memory consumption was 57.7MB. Max. memory is 16.1GB. [2022-02-21 04:15:51,375 INFO L158 Benchmark]: Witness Printer took 38.19ms. Allocated memory is still 182.5MB. Free memory was 152.7MB in the beginning and 150.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-02-21 04:15:51,377 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 79.7MB. Free memory was 34.2MB in the beginning and 34.1MB in the end (delta: 70.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 402.75ms. Allocated memory is still 117.4MB. Free memory was 82.6MB in the beginning and 81.0MB in the end (delta: 1.7MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 51.84ms. Allocated memory is still 117.4MB. Free memory was 80.6MB in the beginning and 78.1MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 32.01ms. Allocated memory is still 117.4MB. Free memory was 78.1MB in the beginning and 76.4MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 478.43ms. Allocated memory is still 117.4MB. Free memory was 76.4MB in the beginning and 59.2MB in the end (delta: 17.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * BuchiAutomizer took 3531.65ms. Allocated memory was 117.4MB in the beginning and 182.5MB in the end (delta: 65.0MB). Free memory was 59.2MB in the beginning and 152.7MB in the end (delta: -93.5MB). Peak memory consumption was 57.7MB. Max. memory is 16.1GB. * Witness Printer took 38.19ms. Allocated memory is still 182.5MB. Free memory was 152.7MB in the beginning and 150.6MB 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 1 terminating modules (1 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.1 modules have a trivial ranking function, the largest among these consists of 6 locations. The remainder module has 66 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 3.4s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 3.0s. Construction of modules took 0.0s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 0. Minimization of det autom 1. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 66 states and ocurred in iteration 1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 275 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 275 mSDsluCounter, 94 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 4 mSDsCounter, 4 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 8 IncrementalHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 4 mSolverCounterUnsat, 90 mSDtfsCounter, 8 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI0 SFLT0 conc1 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 179]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=1} State at position 1 is {splverifierCounter=0, retValue_acc=0, NULL=0, head=0, pumpRunning=0, tmp___0=0, NULL=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@33300c65=0, methaneLevelCritical=0, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@15a17b0a=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6181dfd6=29, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4b2d0f3c=0, \result=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@755794ce=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@67c54088=0, retValue_acc=1, retValue_acc=0, tmp=0, tmp___2=29, methAndRunningLastTime=0, tmp=0, cleanupTimeShifts=4, \result=0, tmp=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@32580df9=0, head=0, tmp___1=0, NULL=0, waterLevel=1, systemActive=1, tmp___0=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 179]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L58] int pumpRunning = 0; [L59] int systemActive = 1; [L272] int cleanupTimeShifts = 4; [L371] int methAndRunningLastTime ; [L579] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L777] int waterLevel = 1; [L778] int methaneLevelCritical = 0; [L347] int retValue_acc ; [L348] int tmp ; [L352] FCALL select_helpers() [L353] FCALL select_features() [L354] CALL, EXPR valid_product() [L263] int retValue_acc ; [L266] retValue_acc = 1 [L267] return (retValue_acc); [L354] RET, EXPR valid_product() [L354] tmp = valid_product() [L356] COND TRUE \read(tmp) [L358] FCALL setup() [L359] CALL runTest() [L340] CALL __utac_acc__Specification2_spec__1() [L376] methAndRunningLastTime = 0 [L340] RET __utac_acc__Specification2_spec__1() [L341] CALL test() [L170] int splverifierCounter ; [L171] int tmp ; [L172] int tmp___0 ; [L173] int tmp___1 ; [L174] int tmp___2 ; [L177] splverifierCounter = 0 Loop: [L179] COND TRUE 1 [L181] COND TRUE splverifierCounter < 4 [L187] tmp = __VERIFIER_nondet_int() [L189] COND FALSE !(\read(tmp)) [L197] tmp___0 = __VERIFIER_nondet_int() [L199] COND FALSE !(\read(tmp___0)) [L207] tmp___2 = __VERIFIER_nondet_int() [L209] COND TRUE \read(tmp___2) [L222] CALL timeShift() [L66] COND FALSE !(\read(pumpRunning)) [L73] COND TRUE \read(systemActive) [L75] FCALL processEnvironment() [L81] CALL __utac_acc__Specification2_spec__2() [L381] int tmp ; [L382] int tmp___0 ; [L386] CALL, EXPR isMethaneLevelCritical() [L816] int retValue_acc ; [L819] retValue_acc = methaneLevelCritical [L820] return (retValue_acc); [L386] RET, EXPR isMethaneLevelCritical() [L386] tmp = isMethaneLevelCritical() [L388] COND FALSE !(\read(tmp)) [L404] methAndRunningLastTime = 0 [L81] RET __utac_acc__Specification2_spec__2() [L222] RET timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2022-02-21 04:15:51,422 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM)