./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/minepump_spec1_product06.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 20ed64ec Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i ../sv-benchmarks/c/product-lines/minepump_spec1_product06.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 b67757251629fd1bffeb4ee115ae4af5ebdd6873 ................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM) --- Real Ultimate output --- This is Ultimate 0.2.1-dev-20ed64e [2021-08-27 15:51:44,055 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-27 15:51:44,057 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-27 15:51:44,077 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-08-27 15:51:44,077 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-08-27 15:51:44,078 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-08-27 15:51:44,079 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-08-27 15:51:44,080 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-08-27 15:51:44,081 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-08-27 15:51:44,082 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-08-27 15:51:44,083 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-08-27 15:51:44,083 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-08-27 15:51:44,085 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-27 15:51:44,086 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-27 15:51:44,087 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-27 15:51:44,088 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-27 15:51:44,089 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-27 15:51:44,090 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-27 15:51:44,094 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-27 15:51:44,097 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-27 15:51:44,098 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-27 15:51:44,098 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-27 15:51:44,099 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-27 15:51:44,100 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-27 15:51:44,101 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-08-27 15:51:44,101 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-08-27 15:51:44,102 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-08-27 15:51:44,102 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-08-27 15:51:44,102 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-08-27 15:51:44,103 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-08-27 15:51:44,103 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-08-27 15:51:44,104 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-08-27 15:51:44,104 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-08-27 15:51:44,104 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-08-27 15:51:44,105 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-08-27 15:51:44,105 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-08-27 15:51:44,106 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-08-27 15:51:44,106 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-08-27 15:51:44,106 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-27 15:51:44,107 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-27 15:51:44,107 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-27 15:51:44,108 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-08-27 15:51:44,123 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-27 15:51:44,123 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-27 15:51:44,123 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-27 15:51:44,123 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-27 15:51:44,124 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-27 15:51:44,124 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-27 15:51:44,124 INFO L138 SettingsManager]: * Use SBE=true [2021-08-27 15:51:44,124 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-08-27 15:51:44,125 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-08-27 15:51:44,125 INFO L138 SettingsManager]: * Use old map elimination=false [2021-08-27 15:51:44,125 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-08-27 15:51:44,125 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-08-27 15:51:44,125 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-08-27 15:51:44,131 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-27 15:51:44,131 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-27 15:51:44,134 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-08-27 15:51:44,134 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-27 15:51:44,134 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-27 15:51:44,134 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-27 15:51:44,134 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-08-27 15:51:44,134 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-08-27 15:51:44,134 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-08-27 15:51:44,134 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-27 15:51:44,135 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-27 15:51:44,135 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-08-27 15:51:44,135 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-27 15:51:44,135 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-08-27 15:51:44,135 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-27 15:51:44,135 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-27 15:51:44,135 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-27 15:51:44,136 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-08-27 15:51:44,136 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-08-27 15:51:44,137 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-08-27 15:51:44,137 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b67757251629fd1bffeb4ee115ae4af5ebdd6873 [2021-08-27 15:51:44,368 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-27 15:51:44,389 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-27 15:51:44,391 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-27 15:51:44,392 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-27 15:51:44,392 INFO L275 PluginConnector]: CDTParser initialized [2021-08-27 15:51:44,393 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec1_product06.cil.c [2021-08-27 15:51:44,442 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8dfdc8876/0714333bef474ab1bff4682a5e5f1b6a/FLAGe451bd7dd [2021-08-27 15:51:44,856 INFO L306 CDTParser]: Found 1 translation units. [2021-08-27 15:51:44,857 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec1_product06.cil.c [2021-08-27 15:51:44,876 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8dfdc8876/0714333bef474ab1bff4682a5e5f1b6a/FLAGe451bd7dd [2021-08-27 15:51:44,887 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8dfdc8876/0714333bef474ab1bff4682a5e5f1b6a [2021-08-27 15:51:44,889 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-27 15:51:44,890 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-08-27 15:51:44,891 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-27 15:51:44,891 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-27 15:51:44,897 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-27 15:51:44,897 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 03:51:44" (1/1) ... [2021-08-27 15:51:44,898 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4624cd49 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:51:44, skipping insertion in model container [2021-08-27 15:51:44,898 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 03:51:44" (1/1) ... [2021-08-27 15:51:44,911 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-27 15:51:44,949 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-27 15:51:45,166 WARN L228 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_product06.cil.c[13152,13165] [2021-08-27 15:51:45,177 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-27 15:51:45,183 INFO L203 MainTranslator]: Completed pre-run [2021-08-27 15:51:45,209 WARN L228 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_product06.cil.c[13152,13165] [2021-08-27 15:51:45,217 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-27 15:51:45,228 INFO L208 MainTranslator]: Completed translation [2021-08-27 15:51:45,229 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:51:45 WrapperNode [2021-08-27 15:51:45,229 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-27 15:51:45,230 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-08-27 15:51:45,230 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-08-27 15:51:45,230 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-08-27 15:51:45,234 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:51:45" (1/1) ... [2021-08-27 15:51:45,243 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:51:45" (1/1) ... [2021-08-27 15:51:45,265 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-08-27 15:51:45,266 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-27 15:51:45,266 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-27 15:51:45,266 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-27 15:51:45,272 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:51:45" (1/1) ... [2021-08-27 15:51:45,272 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:51:45" (1/1) ... [2021-08-27 15:51:45,274 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:51:45" (1/1) ... [2021-08-27 15:51:45,274 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:51:45" (1/1) ... [2021-08-27 15:51:45,279 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:51:45" (1/1) ... [2021-08-27 15:51:45,292 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:51:45" (1/1) ... [2021-08-27 15:51:45,293 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:51:45" (1/1) ... [2021-08-27 15:51:45,295 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-27 15:51:45,296 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-27 15:51:45,296 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-27 15:51:45,296 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-27 15:51:45,296 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:51:45" (1/1) ... [2021-08-27 15:51:45,303 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:51:45,309 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:51:45,340 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) [2021-08-27 15:51:45,372 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 [2021-08-27 15:51:45,386 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-08-27 15:51:45,386 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-08-27 15:51:45,387 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-27 15:51:45,387 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-27 15:51:45,961 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-27 15:51:45,961 INFO L299 CfgBuilder]: Removed 98 assume(true) statements. [2021-08-27 15:51:45,963 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 03:51:45 BoogieIcfgContainer [2021-08-27 15:51:45,963 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-27 15:51:45,963 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-08-27 15:51:45,964 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-08-27 15:51:45,965 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-08-27 15:51:45,966 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-08-27 15:51:45,966 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 27.08 03:51:44" (1/3) ... [2021-08-27 15:51:45,967 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7737316e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 27.08 03:51:45, skipping insertion in model container [2021-08-27 15:51:45,967 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-08-27 15:51:45,967 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:51:45" (2/3) ... [2021-08-27 15:51:45,968 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7737316e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 27.08 03:51:45, skipping insertion in model container [2021-08-27 15:51:45,968 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-08-27 15:51:45,968 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 03:51:45" (3/3) ... [2021-08-27 15:51:45,969 INFO L389 chiAutomizerObserver]: Analyzing ICFG minepump_spec1_product06.cil.c [2021-08-27 15:51:46,002 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-08-27 15:51:46,003 INFO L360 BuchiCegarLoop]: Hoare is false [2021-08-27 15:51:46,003 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-08-27 15:51:46,003 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-08-27 15:51:46,003 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-08-27 15:51:46,003 INFO L364 BuchiCegarLoop]: Difference is false [2021-08-27 15:51:46,003 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-08-27 15:51:46,003 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-08-27 15:51:46,015 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 66 states, 65 states have (on average 1.523076923076923) internal successors, (99), 65 states have internal predecessors, (99), 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) [2021-08-27 15:51:46,030 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 41 [2021-08-27 15:51:46,030 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-27 15:51:46,030 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-27 15:51:46,035 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-08-27 15:51:46,035 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 15:51:46,035 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-08-27 15:51:46,035 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 66 states, 65 states have (on average 1.523076923076923) internal successors, (99), 65 states have internal predecessors, (99), 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) [2021-08-27 15:51:46,038 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 41 [2021-08-27 15:51:46,038 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-27 15:51:46,039 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-27 15:51:46,045 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-08-27 15:51:46,045 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 15:51:46,053 INFO L791 eck$LassoCheckResult]: Stem: 53#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(31);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);call #t~string25.base, #t~string25.offset := #Ultimate.allocOnStack(30);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(9);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(21);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(30);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(9);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(21);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(30);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(9);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(25);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(30);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(9);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(25);call #t~string47.base, #t~string47.offset := #Ultimate.allocOnStack(13);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string49.base, #t~string49.offset, 1);call write~init~int(77, #t~string49.base, 1 + #t~string49.offset, 1);call write~init~int(101, #t~string49.base, 2 + #t~string49.offset, 1);call write~init~int(116, #t~string49.base, 3 + #t~string49.offset, 1);call write~init~int(104, #t~string49.base, 4 + #t~string49.offset, 1);call write~init~int(58, #t~string49.base, 5 + #t~string49.offset, 1);call write~init~int(0, #t~string49.base, 6 + #t~string49.offset, 1);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string51.base, #t~string51.offset, 1);call write~init~int(82, #t~string51.base, 1 + #t~string51.offset, 1);call write~init~int(73, #t~string51.base, 2 + #t~string51.offset, 1);call write~init~int(84, #t~string51.base, 3 + #t~string51.offset, 1);call write~init~int(0, #t~string51.base, 4 + #t~string51.offset, 1);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string53.base, #t~string53.offset, 1);call write~init~int(75, #t~string53.base, 1 + #t~string53.offset, 1);call write~init~int(0, #t~string53.base, 2 + #t~string53.offset, 1);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string55.base, #t~string55.offset, 1);call write~init~int(0, #t~string55.base, 1 + #t~string55.offset, 1);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(13);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string65.base, #t~string65.offset, 1);call write~init~int(110, #t~string65.base, 1 + #t~string65.offset, 1);call write~init~int(0, #t~string65.base, 2 + #t~string65.offset, 1);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string67.base, #t~string67.offset, 1);call write~init~int(102, #t~string67.base, 1 + #t~string67.offset, 1);call write~init~int(102, #t~string67.base, 2 + #t~string67.offset, 1);call write~init~int(0, #t~string67.base, 3 + #t~string67.offset, 1);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string69.base, #t~string69.offset, 1);call write~init~int(80, #t~string69.base, 1 + #t~string69.offset, 1);call write~init~int(117, #t~string69.base, 2 + #t~string69.offset, 1);call write~init~int(109, #t~string69.base, 3 + #t~string69.offset, 1);call write~init~int(112, #t~string69.base, 4 + #t~string69.offset, 1);call write~init~int(58, #t~string69.base, 5 + #t~string69.offset, 1);call write~init~int(0, #t~string69.base, 6 + #t~string69.offset, 1);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string71.base, #t~string71.offset, 1);call write~init~int(110, #t~string71.base, 1 + #t~string71.offset, 1);call write~init~int(0, #t~string71.base, 2 + #t~string71.offset, 1);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string73.base, #t~string73.offset, 1);call write~init~int(102, #t~string73.base, 1 + #t~string73.offset, 1);call write~init~int(102, #t~string73.base, 2 + #t~string73.offset, 1);call write~init~int(0, #t~string73.base, 3 + #t~string73.offset, 1);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string75.base, #t~string75.offset, 1);call write~init~int(32, #t~string75.base, 1 + #t~string75.offset, 1);call write~init~int(0, #t~string75.base, 2 + #t~string75.offset, 1);call #t~string77.base, #t~string77.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string77.base, #t~string77.offset, 1);call write~init~int(0, #t~string77.base, 1 + #t~string77.offset, 1);~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1; 45#L-1true havoc main_#res;havoc main_#t~ret43, main_~retValue_acc~5, main_~tmp~3;havoc main_~retValue_acc~5;havoc main_~tmp~3; 3#L433true havoc valid_product_#res;havoc valid_product_~retValue_acc~4;havoc valid_product_~retValue_acc~4;valid_product_~retValue_acc~4 := 1;valid_product_#res := valid_product_~retValue_acc~4; 31#L441true main_#t~ret43 := valid_product_#res;main_~tmp~3 := main_#t~ret43;havoc main_#t~ret43; 56#L533true assume 0 != main_~tmp~3; 47#L509true havoc test_#t~nondet56, test_#t~nondet57, test_#t~nondet58, test_#t~nondet59, test_~splverifierCounter~0, test_~tmp~5, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~5;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 44#L558-1true [2021-08-27 15:51:46,054 INFO L793 eck$LassoCheckResult]: Loop: 44#L558-1true assume !false; 57#L680true assume test_~splverifierCounter~0 < 4; 65#L681true test_~tmp~5 := test_#t~nondet56;havoc test_#t~nondet56; 16#L689true assume !(0 != test_~tmp~5); 30#L689-1true test_~tmp___0~1 := test_#t~nondet57;havoc test_#t~nondet57; 46#L699true assume !(0 != test_~tmp___0~1); 28#L699-1true test_~tmp___2~0 := test_#t~nondet58;havoc test_#t~nondet58; 48#L709true assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 41#L717-2true assume !(0 != ~pumpRunning~0); 10#L745true assume !(0 != ~systemActive~0); 6#L752true havoc __utac_acc__Specification1_spec__1_#t~ret44, __utac_acc__Specification1_spec__1_#t~ret45, __utac_acc__Specification1_spec__1_~tmp~4, __utac_acc__Specification1_spec__1_~tmp___0~0;havoc __utac_acc__Specification1_spec__1_~tmp~4;havoc __utac_acc__Specification1_spec__1_~tmp___0~0;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~6;havoc isMethaneLevelCritical_~retValue_acc~6;isMethaneLevelCritical_~retValue_acc~6 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~6; 62#L631-1true __utac_acc__Specification1_spec__1_#t~ret44 := isMethaneLevelCritical_#res;__utac_acc__Specification1_spec__1_~tmp~4 := __utac_acc__Specification1_spec__1_#t~ret44;havoc __utac_acc__Specification1_spec__1_#t~ret44; 64#L558true assume !(0 != __utac_acc__Specification1_spec__1_~tmp~4); 44#L558-1true [2021-08-27 15:51:46,058 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 15:51:46,058 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 1 times [2021-08-27 15:51:46,063 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 15:51:46,064 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [61619956] [2021-08-27 15:51:46,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 15:51:46,065 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 15:51:46,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 15:51:46,215 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 15:51:46,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 15:51:46,327 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 15:51:46,332 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 15:51:46,332 INFO L82 PathProgramCache]: Analyzing trace with hash -1680944957, now seen corresponding path program 1 times [2021-08-27 15:51:46,333 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 15:51:46,334 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [317886025] [2021-08-27 15:51:46,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 15:51:46,334 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 15:51:46,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 15:51:46,384 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 15:51:46,385 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 15:51:46,385 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [317886025] [2021-08-27 15:51:46,385 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [317886025] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-27 15:51:46,385 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-27 15:51:46,385 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-27 15:51:46,386 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [97527535] [2021-08-27 15:51:46,389 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-08-27 15:51:46,389 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 15:51:46,398 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-27 15:51:46,399 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-27 15:51:46,400 INFO L87 Difference]: Start difference. First operand has 66 states, 65 states have (on average 1.523076923076923) internal successors, (99), 65 states have internal predecessors, (99), 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 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 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) [2021-08-27 15:51:46,433 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 15:51:46,433 INFO L93 Difference]: Finished difference Result 66 states and 89 transitions. [2021-08-27 15:51:46,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-27 15:51:46,435 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 66 states and 89 transitions. [2021-08-27 15:51:46,437 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 39 [2021-08-27 15:51:46,441 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 66 states to 59 states and 81 transitions. [2021-08-27 15:51:46,442 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 59 [2021-08-27 15:51:46,442 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 59 [2021-08-27 15:51:46,443 INFO L73 IsDeterministic]: Start isDeterministic. Operand 59 states and 81 transitions. [2021-08-27 15:51:46,443 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-27 15:51:46,443 INFO L681 BuchiCegarLoop]: Abstraction has 59 states and 81 transitions. [2021-08-27 15:51:46,452 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states and 81 transitions. [2021-08-27 15:51:46,458 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 59. [2021-08-27 15:51:46,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59 states, 59 states have (on average 1.3728813559322033) internal successors, (81), 58 states have internal predecessors, (81), 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) [2021-08-27 15:51:46,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 81 transitions. [2021-08-27 15:51:46,460 INFO L704 BuchiCegarLoop]: Abstraction has 59 states and 81 transitions. [2021-08-27 15:51:46,460 INFO L587 BuchiCegarLoop]: Abstraction has 59 states and 81 transitions. [2021-08-27 15:51:46,460 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-08-27 15:51:46,461 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 59 states and 81 transitions. [2021-08-27 15:51:46,463 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 39 [2021-08-27 15:51:46,463 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-27 15:51:46,463 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-27 15:51:46,464 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-08-27 15:51:46,464 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 15:51:46,464 INFO L791 eck$LassoCheckResult]: Stem: 194#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(31);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);call #t~string25.base, #t~string25.offset := #Ultimate.allocOnStack(30);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(9);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(21);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(30);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(9);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(21);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(30);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(9);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(25);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(30);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(9);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(25);call #t~string47.base, #t~string47.offset := #Ultimate.allocOnStack(13);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string49.base, #t~string49.offset, 1);call write~init~int(77, #t~string49.base, 1 + #t~string49.offset, 1);call write~init~int(101, #t~string49.base, 2 + #t~string49.offset, 1);call write~init~int(116, #t~string49.base, 3 + #t~string49.offset, 1);call write~init~int(104, #t~string49.base, 4 + #t~string49.offset, 1);call write~init~int(58, #t~string49.base, 5 + #t~string49.offset, 1);call write~init~int(0, #t~string49.base, 6 + #t~string49.offset, 1);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string51.base, #t~string51.offset, 1);call write~init~int(82, #t~string51.base, 1 + #t~string51.offset, 1);call write~init~int(73, #t~string51.base, 2 + #t~string51.offset, 1);call write~init~int(84, #t~string51.base, 3 + #t~string51.offset, 1);call write~init~int(0, #t~string51.base, 4 + #t~string51.offset, 1);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string53.base, #t~string53.offset, 1);call write~init~int(75, #t~string53.base, 1 + #t~string53.offset, 1);call write~init~int(0, #t~string53.base, 2 + #t~string53.offset, 1);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string55.base, #t~string55.offset, 1);call write~init~int(0, #t~string55.base, 1 + #t~string55.offset, 1);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(13);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string65.base, #t~string65.offset, 1);call write~init~int(110, #t~string65.base, 1 + #t~string65.offset, 1);call write~init~int(0, #t~string65.base, 2 + #t~string65.offset, 1);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string67.base, #t~string67.offset, 1);call write~init~int(102, #t~string67.base, 1 + #t~string67.offset, 1);call write~init~int(102, #t~string67.base, 2 + #t~string67.offset, 1);call write~init~int(0, #t~string67.base, 3 + #t~string67.offset, 1);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string69.base, #t~string69.offset, 1);call write~init~int(80, #t~string69.base, 1 + #t~string69.offset, 1);call write~init~int(117, #t~string69.base, 2 + #t~string69.offset, 1);call write~init~int(109, #t~string69.base, 3 + #t~string69.offset, 1);call write~init~int(112, #t~string69.base, 4 + #t~string69.offset, 1);call write~init~int(58, #t~string69.base, 5 + #t~string69.offset, 1);call write~init~int(0, #t~string69.base, 6 + #t~string69.offset, 1);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string71.base, #t~string71.offset, 1);call write~init~int(110, #t~string71.base, 1 + #t~string71.offset, 1);call write~init~int(0, #t~string71.base, 2 + #t~string71.offset, 1);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string73.base, #t~string73.offset, 1);call write~init~int(102, #t~string73.base, 1 + #t~string73.offset, 1);call write~init~int(102, #t~string73.base, 2 + #t~string73.offset, 1);call write~init~int(0, #t~string73.base, 3 + #t~string73.offset, 1);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string75.base, #t~string75.offset, 1);call write~init~int(32, #t~string75.base, 1 + #t~string75.offset, 1);call write~init~int(0, #t~string75.base, 2 + #t~string75.offset, 1);call #t~string77.base, #t~string77.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string77.base, #t~string77.offset, 1);call write~init~int(0, #t~string77.base, 1 + #t~string77.offset, 1);~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1; 191#L-1 havoc main_#res;havoc main_#t~ret43, main_~retValue_acc~5, main_~tmp~3;havoc main_~retValue_acc~5;havoc main_~tmp~3; 141#L433 havoc valid_product_#res;havoc valid_product_~retValue_acc~4;havoc valid_product_~retValue_acc~4;valid_product_~retValue_acc~4 := 1;valid_product_#res := valid_product_~retValue_acc~4; 142#L441 main_#t~ret43 := valid_product_#res;main_~tmp~3 := main_#t~ret43;havoc main_#t~ret43; 182#L533 assume 0 != main_~tmp~3; 193#L509 havoc test_#t~nondet56, test_#t~nondet57, test_#t~nondet58, test_#t~nondet59, test_~splverifierCounter~0, test_~tmp~5, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~5;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 165#L558-1 [2021-08-27 15:51:46,464 INFO L793 eck$LassoCheckResult]: Loop: 165#L558-1 assume !false; 190#L680 assume test_~splverifierCounter~0 < 4; 197#L681 test_~tmp~5 := test_#t~nondet56;havoc test_#t~nondet56; 158#L689 assume !(0 != test_~tmp~5); 160#L689-1 test_~tmp___0~1 := test_#t~nondet57;havoc test_#t~nondet57; 181#L699 assume !(0 != test_~tmp___0~1); 175#L699-1 test_~tmp___2~0 := test_#t~nondet58;havoc test_#t~nondet58; 176#L709 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 180#L717-2 assume !(0 != ~pumpRunning~0); 151#L745 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret60, processEnvironment_~tmp~6;havoc processEnvironment_~tmp~6; 152#L777 assume !(0 != ~pumpRunning~0); 143#L752 havoc __utac_acc__Specification1_spec__1_#t~ret44, __utac_acc__Specification1_spec__1_#t~ret45, __utac_acc__Specification1_spec__1_~tmp~4, __utac_acc__Specification1_spec__1_~tmp___0~0;havoc __utac_acc__Specification1_spec__1_~tmp~4;havoc __utac_acc__Specification1_spec__1_~tmp___0~0;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~6;havoc isMethaneLevelCritical_~retValue_acc~6;isMethaneLevelCritical_~retValue_acc~6 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~6; 144#L631-1 __utac_acc__Specification1_spec__1_#t~ret44 := isMethaneLevelCritical_#res;__utac_acc__Specification1_spec__1_~tmp~4 := __utac_acc__Specification1_spec__1_#t~ret44;havoc __utac_acc__Specification1_spec__1_#t~ret44; 199#L558 assume !(0 != __utac_acc__Specification1_spec__1_~tmp~4); 165#L558-1 [2021-08-27 15:51:46,464 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 15:51:46,465 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 2 times [2021-08-27 15:51:46,465 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 15:51:46,465 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1753629154] [2021-08-27 15:51:46,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 15:51:46,465 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 15:51:46,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 15:51:46,526 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 15:51:46,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 15:51:46,580 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 15:51:46,580 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 15:51:46,580 INFO L82 PathProgramCache]: Analyzing trace with hash -590214405, now seen corresponding path program 1 times [2021-08-27 15:51:46,580 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 15:51:46,580 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [323669815] [2021-08-27 15:51:46,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 15:51:46,581 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 15:51:46,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 15:51:46,590 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 15:51:46,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 15:51:46,595 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 15:51:46,597 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 15:51:46,598 INFO L82 PathProgramCache]: Analyzing trace with hash 1012825121, now seen corresponding path program 1 times [2021-08-27 15:51:46,600 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 15:51:46,600 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [836205614] [2021-08-27 15:51:46,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 15:51:46,600 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 15:51:46,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 15:51:46,639 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 15:51:46,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 15:51:46,672 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 15:52:28,104 WARN L207 SmtUtils]: Spent 41.18 s on a formula simplification. DAG size of input: 491 DAG size of output: 433 [2021-08-27 15:53:09,739 WARN L207 SmtUtils]: Spent 20.48 s on a formula simplification that was a NOOP. DAG size: 433 [2021-08-27 15:53:09,836 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 27.08 03:53:09 BoogieIcfgContainer [2021-08-27 15:53:09,840 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-08-27 15:53:09,840 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-08-27 15:53:09,840 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-08-27 15:53:09,841 INFO L275 PluginConnector]: Witness Printer initialized [2021-08-27 15:53:09,841 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 03:51:45" (3/4) ... [2021-08-27 15:53:09,847 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2021-08-27 15:53:09,906 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-08-27 15:53:09,906 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-08-27 15:53:09,909 INFO L168 Benchmark]: Toolchain (without parser) took 85018.48 ms. Allocated memory was 62.9 MB in the beginning and 100.7 MB in the end (delta: 37.7 MB). Free memory was 42.4 MB in the beginning and 30.8 MB in the end (delta: 11.6 MB). Peak memory consumption was 48.4 MB. Max. memory is 16.1 GB. [2021-08-27 15:53:09,909 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 62.9 MB. Free memory is still 44.7 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-08-27 15:53:09,910 INFO L168 Benchmark]: CACSL2BoogieTranslator took 338.35 ms. Allocated memory is still 62.9 MB. Free memory was 42.3 MB in the beginning and 37.7 MB in the end (delta: 4.6 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-08-27 15:53:09,910 INFO L168 Benchmark]: Boogie Procedure Inliner took 36.02 ms. Allocated memory is still 62.9 MB. Free memory was 37.7 MB in the beginning and 35.0 MB in the end (delta: 2.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-08-27 15:53:09,910 INFO L168 Benchmark]: Boogie Preprocessor took 29.23 ms. Allocated memory is still 62.9 MB. Free memory was 34.7 MB in the beginning and 32.9 MB in the end (delta: 1.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-08-27 15:53:09,911 INFO L168 Benchmark]: RCFGBuilder took 667.12 ms. Allocated memory was 62.9 MB in the beginning and 83.9 MB in the end (delta: 21.0 MB). Free memory was 32.9 MB in the beginning and 41.5 MB in the end (delta: -8.7 MB). Peak memory consumption was 15.8 MB. Max. memory is 16.1 GB. [2021-08-27 15:53:09,911 INFO L168 Benchmark]: BuchiAutomizer took 83876.41 ms. Allocated memory was 83.9 MB in the beginning and 100.7 MB in the end (delta: 16.8 MB). Free memory was 41.0 MB in the beginning and 33.8 MB in the end (delta: 7.2 MB). Peak memory consumption was 42.8 MB. Max. memory is 16.1 GB. [2021-08-27 15:53:09,912 INFO L168 Benchmark]: Witness Printer took 67.67 ms. Allocated memory is still 100.7 MB. Free memory was 33.8 MB in the beginning and 30.8 MB in the end (delta: 3.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-08-27 15:53:09,916 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 62.9 MB. Free memory is still 44.7 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 338.35 ms. Allocated memory is still 62.9 MB. Free memory was 42.3 MB in the beginning and 37.7 MB in the end (delta: 4.6 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 36.02 ms. Allocated memory is still 62.9 MB. Free memory was 37.7 MB in the beginning and 35.0 MB in the end (delta: 2.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 29.23 ms. Allocated memory is still 62.9 MB. Free memory was 34.7 MB in the beginning and 32.9 MB in the end (delta: 1.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 667.12 ms. Allocated memory was 62.9 MB in the beginning and 83.9 MB in the end (delta: 21.0 MB). Free memory was 32.9 MB in the beginning and 41.5 MB in the end (delta: -8.7 MB). Peak memory consumption was 15.8 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 83876.41 ms. Allocated memory was 83.9 MB in the beginning and 100.7 MB in the end (delta: 16.8 MB). Free memory was 41.0 MB in the beginning and 33.8 MB in the end (delta: 7.2 MB). Peak memory consumption was 42.8 MB. Max. memory is 16.1 GB. * Witness Printer took 67.67 ms. Allocated memory is still 100.7 MB. Free memory was 33.8 MB in the beginning and 30.8 MB in the end (delta: 3.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * 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 3 locations. The remainder module has 59 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 83.8s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 83.6s. Construction of modules took 0.0s. Büchi inclusion checks took 0.0s. Highest rank in rank-based complementation 0. Minimization of det autom 1. Minimization of nondet autom 0. Automata minimization 8.8ms AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 59 states and ocurred in iteration 1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 86 SDtfs, 86 SDslu, 0 SDs, 0 SdLazy, 3 SolverSat, 3 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 19.5ms Time LassoAnalysisResults: nont1 unkn0 SFLI1 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: 679]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=28953} State at position 1 is {NULL=0, NULL=0, NULL=28972, NULL=0, NULL=28953, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1f8be5d0=0, NULL=28960, retValue_acc=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7ca678a9=0, NULL=28971, NULL=28978, NULL=28957, methaneLevelCritical=0, NULL=28968, NULL=0, NULL=0, tmp=0, NULL=0, tmp___1=0, NULL=28977, NULL=0, NULL=0, tmp___0=0, NULL=28962, NULL=28966, NULL=28979, cleanupTimeShifts=4, NULL=28976, NULL=28954, NULL=28973, NULL=0, NULL=0, NULL=0, NULL=0, systemActive=1, waterLevel=1, NULL=28967, NULL=0, NULL=0, retValue_acc=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6f4c147a=0, NULL=28981, NULL=0, NULL=0, NULL=28963, \result=1, head=0, pumpRunning=0, NULL=28970, \result=0, tmp=1, NULL=0, tmp=0, NULL=0, NULL=0, NULL=0, NULL=28965, retValue_acc=1, NULL=28969, NULL=0, NULL=0, NULL=28956, NULL=0, NULL=28958, tmp___2=63, NULL=0, NULL=28964, tmp___0=0, NULL=28961, splverifierCounter=0, NULL=0, \result=0, NULL=28959, NULL=28955, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@650eded6=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@48544e6a=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@79e2dc0a=63, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@48cc09eb=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@400a754=0, head=0, NULL=0, NULL=0, tmp=0, NULL=28980, NULL=0, NULL=0, NULL=28974, NULL=28975} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L211] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L446] int cleanupTimeShifts = 4; [L588] int waterLevel = 1; [L589] int methaneLevelCritical = 0; [L738] int pumpRunning = 0; [L739] int systemActive = 1; [L524] int retValue_acc ; [L525] int tmp ; [L437] int retValue_acc ; [L440] retValue_acc = 1 [L441] return (retValue_acc); [L531] tmp = valid_product() [L533] COND TRUE \read(tmp) [L670] int splverifierCounter ; [L671] int tmp ; [L672] int tmp___0 ; [L673] int tmp___1 ; [L674] int tmp___2 ; [L677] splverifierCounter = 0 Loop: [L679] COND TRUE 1 [L681] COND TRUE splverifierCounter < 4 [L687] tmp = __VERIFIER_nondet_int() [L689] COND FALSE !(\read(tmp)) [L697] tmp___0 = __VERIFIER_nondet_int() [L699] COND FALSE !(\read(tmp___0)) [L707] tmp___2 = __VERIFIER_nondet_int() [L709] COND TRUE \read(tmp___2) [L874] systemActive = 1 [L745] COND FALSE !(\read(pumpRunning)) [L752] COND TRUE \read(systemActive) [L774] int tmp ; [L777] COND FALSE !(\read(pumpRunning)) [L551] int tmp ; [L552] int tmp___0 ; [L627] int retValue_acc ; [L630] retValue_acc = methaneLevelCritical [L631] return (retValue_acc); [L556] tmp = isMethaneLevelCritical() [L558] COND FALSE !(\read(tmp)) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2021-08-27 15:53:09,957 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...