./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/minepump_spec4_product02.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 839c364b 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_spec4_product02.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 8ef3a2966212a62c51376d0bc71e8b6c4dafa6b54b639f6f7c53dd815ae9709e --- Real Ultimate output --- This is Ultimate 0.2.2-839c364b5d67a0f615c82cb70ab247790648d4a9-839c364 [2021-12-14 23:38:57,027 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-14 23:38:57,028 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-14 23:38:57,082 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-14 23:38:57,083 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-14 23:38:57,084 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-14 23:38:57,085 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-14 23:38:57,086 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-14 23:38:57,087 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-14 23:38:57,088 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-14 23:38:57,088 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-14 23:38:57,089 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-14 23:38:57,090 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-14 23:38:57,090 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-14 23:38:57,091 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-14 23:38:57,092 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-14 23:38:57,093 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-14 23:38:57,094 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-14 23:38:57,095 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-14 23:38:57,097 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-14 23:38:57,098 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-14 23:38:57,099 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-14 23:38:57,100 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-14 23:38:57,101 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-14 23:38:57,104 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-14 23:38:57,104 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-14 23:38:57,104 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-14 23:38:57,105 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-14 23:38:57,105 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-14 23:38:57,106 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-14 23:38:57,106 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-14 23:38:57,107 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-14 23:38:57,107 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-14 23:38:57,108 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-14 23:38:57,109 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-14 23:38:57,109 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-14 23:38:57,110 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-14 23:38:57,110 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-14 23:38:57,110 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-14 23:38:57,111 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-14 23:38:57,112 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-14 23:38:57,112 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-12-14 23:38:57,127 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-14 23:38:57,127 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-14 23:38:57,128 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-14 23:38:57,128 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-14 23:38:57,129 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-14 23:38:57,129 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-14 23:38:57,129 INFO L138 SettingsManager]: * Use SBE=true [2021-12-14 23:38:57,129 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-12-14 23:38:57,130 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-12-14 23:38:57,130 INFO L138 SettingsManager]: * Use old map elimination=false [2021-12-14 23:38:57,130 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-12-14 23:38:57,130 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-12-14 23:38:57,131 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-12-14 23:38:57,131 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-14 23:38:57,131 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-14 23:38:57,131 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-12-14 23:38:57,132 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-14 23:38:57,132 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-14 23:38:57,132 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-14 23:38:57,132 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-12-14 23:38:57,132 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-12-14 23:38:57,133 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-12-14 23:38:57,133 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-14 23:38:57,133 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-14 23:38:57,133 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-12-14 23:38:57,134 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-14 23:38:57,134 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-12-14 23:38:57,134 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-14 23:38:57,134 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-14 23:38:57,135 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-14 23:38:57,135 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-14 23:38:57,135 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-14 23:38:57,136 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-12-14 23:38:57,136 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8ef3a2966212a62c51376d0bc71e8b6c4dafa6b54b639f6f7c53dd815ae9709e [2021-12-14 23:38:57,294 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-14 23:38:57,316 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-14 23:38:57,317 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-14 23:38:57,318 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-14 23:38:57,321 INFO L275 PluginConnector]: CDTParser initialized [2021-12-14 23:38:57,322 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec4_product02.cil.c [2021-12-14 23:38:57,369 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7dce90e42/1f1cb07a30a24bf68a7d70192e2cf49c/FLAG783999db1 [2021-12-14 23:38:57,747 INFO L306 CDTParser]: Found 1 translation units. [2021-12-14 23:38:57,747 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec4_product02.cil.c [2021-12-14 23:38:57,754 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7dce90e42/1f1cb07a30a24bf68a7d70192e2cf49c/FLAG783999db1 [2021-12-14 23:38:58,145 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7dce90e42/1f1cb07a30a24bf68a7d70192e2cf49c [2021-12-14 23:38:58,147 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-14 23:38:58,148 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-14 23:38:58,153 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-14 23:38:58,153 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-14 23:38:58,155 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-14 23:38:58,156 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 11:38:58" (1/1) ... [2021-12-14 23:38:58,156 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@ddf4a9b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:38:58, skipping insertion in model container [2021-12-14 23:38:58,157 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 11:38:58" (1/1) ... [2021-12-14 23:38:58,161 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-14 23:38:58,193 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-14 23:38:58,309 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_spec4_product02.cil.c[1605,1618] [2021-12-14 23:38:58,383 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-14 23:38:58,398 INFO L203 MainTranslator]: Completed pre-run [2021-12-14 23:38:58,413 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_spec4_product02.cil.c[1605,1618] [2021-12-14 23:38:58,466 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-14 23:38:58,478 INFO L208 MainTranslator]: Completed translation [2021-12-14 23:38:58,487 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:38:58 WrapperNode [2021-12-14 23:38:58,487 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-14 23:38:58,488 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-14 23:38:58,488 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-14 23:38:58,489 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-14 23:38:58,494 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:38:58" (1/1) ... [2021-12-14 23:38:58,506 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:38:58" (1/1) ... [2021-12-14 23:38:58,527 INFO L137 Inliner]: procedures = 50, calls = 145, calls flagged for inlining = 42, calls inlined = 33, statements flattened = 281 [2021-12-14 23:38:58,527 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-14 23:38:58,528 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-14 23:38:58,528 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-14 23:38:58,528 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-14 23:38:58,534 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:38:58" (1/1) ... [2021-12-14 23:38:58,534 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:38:58" (1/1) ... [2021-12-14 23:38:58,536 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:38:58" (1/1) ... [2021-12-14 23:38:58,542 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:38:58" (1/1) ... [2021-12-14 23:38:58,545 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:38:58" (1/1) ... [2021-12-14 23:38:58,555 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:38:58" (1/1) ... [2021-12-14 23:38:58,556 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:38:58" (1/1) ... [2021-12-14 23:38:58,557 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-14 23:38:58,558 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-14 23:38:58,558 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-14 23:38:58,558 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-14 23:38:58,559 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:38:58" (1/1) ... [2021-12-14 23:38:58,569 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-14 23:38:58,576 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 23:38:58,586 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) [2021-12-14 23:38:58,590 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 [2021-12-14 23:38:58,613 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-14 23:38:58,614 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-14 23:38:58,614 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-14 23:38:58,614 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-14 23:38:58,666 INFO L236 CfgBuilder]: Building ICFG [2021-12-14 23:38:58,667 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-14 23:38:58,908 INFO L277 CfgBuilder]: Performing block encoding [2021-12-14 23:38:58,913 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-14 23:38:58,914 INFO L301 CfgBuilder]: Removed 2 assume(true) statements. [2021-12-14 23:38:58,915 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 11:38:58 BoogieIcfgContainer [2021-12-14 23:38:58,915 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-14 23:38:58,916 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-12-14 23:38:58,916 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-12-14 23:38:58,918 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-12-14 23:38:58,919 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-14 23:38:58,919 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 14.12 11:38:58" (1/3) ... [2021-12-14 23:38:58,920 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1495861d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 14.12 11:38:58, skipping insertion in model container [2021-12-14 23:38:58,920 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-14 23:38:58,920 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:38:58" (2/3) ... [2021-12-14 23:38:58,921 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1495861d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 14.12 11:38:58, skipping insertion in model container [2021-12-14 23:38:58,921 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-14 23:38:58,921 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 11:38:58" (3/3) ... [2021-12-14 23:38:58,922 INFO L388 chiAutomizerObserver]: Analyzing ICFG minepump_spec4_product02.cil.c [2021-12-14 23:38:58,951 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-12-14 23:38:58,951 INFO L360 BuchiCegarLoop]: Hoare is false [2021-12-14 23:38:58,952 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-12-14 23:38:58,952 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-12-14 23:38:58,952 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-12-14 23:38:58,952 INFO L364 BuchiCegarLoop]: Difference is false [2021-12-14 23:38:58,952 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-12-14 23:38:58,952 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-12-14 23:38:58,972 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 76 states, 75 states have (on average 1.3733333333333333) internal successors, (103), 75 states have internal predecessors, (103), 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) [2021-12-14 23:38:58,990 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 47 [2021-12-14 23:38:58,990 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-14 23:38:58,990 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-14 23:38:58,994 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-12-14 23:38:58,994 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 23:38:58,994 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-12-14 23:38:58,994 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 76 states, 75 states have (on average 1.3733333333333333) internal successors, (103), 75 states have internal predecessors, (103), 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) [2021-12-14 23:38:58,998 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 47 [2021-12-14 23:38:58,998 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-14 23:38:58,998 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-14 23:38:58,998 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-12-14 23:38:58,999 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 23:38:59,004 INFO L791 eck$LassoCheckResult]: Stem: 61#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(13, 12);call #Ultimate.allocInit(7, 13);call write~init~int(44, 13, 0, 1);call write~init~int(77, 13, 1, 1);call write~init~int(101, 13, 2, 1);call write~init~int(116, 13, 3, 1);call write~init~int(104, 13, 4, 1);call write~init~int(58, 13, 5, 1);call write~init~int(0, 13, 6, 1);call #Ultimate.allocInit(5, 14);call write~init~int(67, 14, 0, 1);call write~init~int(82, 14, 1, 1);call write~init~int(73, 14, 2, 1);call write~init~int(84, 14, 3, 1);call write~init~int(0, 14, 4, 1);call #Ultimate.allocInit(3, 15);call write~init~int(79, 15, 0, 1);call write~init~int(75, 15, 1, 1);call write~init~int(0, 15, 2, 1);call #Ultimate.allocInit(2, 16);call write~init~int(41, 16, 0, 1);call write~init~int(0, 16, 1, 1);call #Ultimate.allocInit(30, 17);call #Ultimate.allocInit(9, 18);call #Ultimate.allocInit(21, 19);call #Ultimate.allocInit(30, 20);call #Ultimate.allocInit(9, 21);call #Ultimate.allocInit(21, 22);call #Ultimate.allocInit(30, 23);call #Ultimate.allocInit(9, 24);call #Ultimate.allocInit(25, 25);call #Ultimate.allocInit(30, 26);call #Ultimate.allocInit(9, 27);call #Ultimate.allocInit(25, 28);~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4; 46#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret48#1, main_~retValue_acc~9#1, main_~tmp~5#1;havoc main_~retValue_acc~9#1;havoc main_~tmp~5#1;assume { :begin_inline_select_helpers } true; 59#L84true assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 14#L77true assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~1#1;havoc valid_product_~retValue_acc~1#1;valid_product_~retValue_acc~1#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~1#1; 51#L92true main_#t~ret48#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~5#1 := main_#t~ret48#1;havoc main_#t~ret48#1; 45#L847true assume 0 != main_~tmp~5#1;assume { :begin_inline_setup } true; 36#L824true assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet14#1, test_#t~nondet15#1, test_#t~nondet16#1, test_#t~nondet17#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; 55#L235-2true [2021-12-14 23:38:59,004 INFO L793 eck$LassoCheckResult]: Loop: 55#L235-2true assume !false; 70#L236true assume test_~splverifierCounter~0#1 < 4; 39#L237true test_~tmp~0#1 := test_#t~nondet14#1;havoc test_#t~nondet14#1; 29#L245true assume !(0 != test_~tmp~0#1); 12#L245-2true test_~tmp___0~0#1 := test_#t~nondet15#1;havoc test_#t~nondet15#1; 21#L255true assume !(0 != test_~tmp___0~0#1); 67#L255-2true test_~tmp___2~0#1 := test_#t~nondet16#1;havoc test_#t~nondet16#1; 5#L265true assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 49#L218true assume { :end_inline_startSystem } true; 50#L273-2true assume { :begin_inline_timeShift } true; 62#L114true assume !(0 != ~pumpRunning~0); 47#L114-2true assume !(0 != ~systemActive~0); 42#L121-1true assume { :begin_inline___utac_acc__Specification4_spec__1 } true;havoc __utac_acc__Specification4_spec__1_#t~ret23#1, __utac_acc__Specification4_spec__1_#t~ret24#1, __utac_acc__Specification4_spec__1_~tmp~1#1, __utac_acc__Specification4_spec__1_~tmp___0~1#1;havoc __utac_acc__Specification4_spec__1_~tmp~1#1;havoc __utac_acc__Specification4_spec__1_~tmp___0~1#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~5#1;havoc getWaterLevel_~retValue_acc~5#1;getWaterLevel_~retValue_acc~5#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~5#1; 48#L368true __utac_acc__Specification4_spec__1_#t~ret23#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification4_spec__1_~tmp~1#1 := __utac_acc__Specification4_spec__1_#t~ret23#1;havoc __utac_acc__Specification4_spec__1_#t~ret23#1; 78#L381true assume !(0 == __utac_acc__Specification4_spec__1_~tmp~1#1); 37#L381-1true assume { :end_inline___utac_acc__Specification4_spec__1 } true; 52#L131true assume { :end_inline_timeShift } true; 55#L235-2true [2021-12-14 23:38:59,008 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 23:38:59,008 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 1 times [2021-12-14 23:38:59,014 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 23:38:59,015 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [119786012] [2021-12-14 23:38:59,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 23:38:59,016 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 23:38:59,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-14 23:38:59,135 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-14 23:38:59,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-14 23:38:59,182 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-14 23:38:59,184 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 23:38:59,185 INFO L85 PathProgramCache]: Analyzing trace with hash 289308929, now seen corresponding path program 1 times [2021-12-14 23:38:59,185 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 23:38:59,185 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1671222357] [2021-12-14 23:38:59,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 23:38:59,185 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 23:38:59,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 23:38:59,247 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-14 23:38:59,247 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 23:38:59,247 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1671222357] [2021-12-14 23:38:59,248 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1671222357] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 23:38:59,248 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 23:38:59,248 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-14 23:38:59,249 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1607492775] [2021-12-14 23:38:59,250 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 23:38:59,254 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-12-14 23:38:59,254 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 23:38:59,280 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-14 23:38:59,280 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-14 23:38:59,282 INFO L87 Difference]: Start difference. First operand has 76 states, 75 states have (on average 1.3733333333333333) internal successors, (103), 75 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 23:38:59,315 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 23:38:59,316 INFO L93 Difference]: Finished difference Result 73 states and 90 transitions. [2021-12-14 23:38:59,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-14 23:38:59,321 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 73 states and 90 transitions. [2021-12-14 23:38:59,327 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 43 [2021-12-14 23:38:59,331 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 73 states to 63 states and 79 transitions. [2021-12-14 23:38:59,333 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 63 [2021-12-14 23:38:59,333 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 63 [2021-12-14 23:38:59,334 INFO L73 IsDeterministic]: Start isDeterministic. Operand 63 states and 79 transitions. [2021-12-14 23:38:59,334 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-14 23:38:59,335 INFO L681 BuchiCegarLoop]: Abstraction has 63 states and 79 transitions. [2021-12-14 23:38:59,345 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states and 79 transitions. [2021-12-14 23:38:59,351 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 63. [2021-12-14 23:38:59,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63 states, 63 states have (on average 1.253968253968254) internal successors, (79), 62 states have internal predecessors, (79), 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) [2021-12-14 23:38:59,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 79 transitions. [2021-12-14 23:38:59,353 INFO L704 BuchiCegarLoop]: Abstraction has 63 states and 79 transitions. [2021-12-14 23:38:59,353 INFO L587 BuchiCegarLoop]: Abstraction has 63 states and 79 transitions. [2021-12-14 23:38:59,354 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-12-14 23:38:59,354 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 63 states and 79 transitions. [2021-12-14 23:38:59,355 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 43 [2021-12-14 23:38:59,355 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-14 23:38:59,355 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-14 23:38:59,355 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-12-14 23:38:59,356 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 23:38:59,356 INFO L791 eck$LassoCheckResult]: Stem: 218#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(13, 12);call #Ultimate.allocInit(7, 13);call write~init~int(44, 13, 0, 1);call write~init~int(77, 13, 1, 1);call write~init~int(101, 13, 2, 1);call write~init~int(116, 13, 3, 1);call write~init~int(104, 13, 4, 1);call write~init~int(58, 13, 5, 1);call write~init~int(0, 13, 6, 1);call #Ultimate.allocInit(5, 14);call write~init~int(67, 14, 0, 1);call write~init~int(82, 14, 1, 1);call write~init~int(73, 14, 2, 1);call write~init~int(84, 14, 3, 1);call write~init~int(0, 14, 4, 1);call #Ultimate.allocInit(3, 15);call write~init~int(79, 15, 0, 1);call write~init~int(75, 15, 1, 1);call write~init~int(0, 15, 2, 1);call #Ultimate.allocInit(2, 16);call write~init~int(41, 16, 0, 1);call write~init~int(0, 16, 1, 1);call #Ultimate.allocInit(30, 17);call #Ultimate.allocInit(9, 18);call #Ultimate.allocInit(21, 19);call #Ultimate.allocInit(30, 20);call #Ultimate.allocInit(9, 21);call #Ultimate.allocInit(21, 22);call #Ultimate.allocInit(30, 23);call #Ultimate.allocInit(9, 24);call #Ultimate.allocInit(25, 25);call #Ultimate.allocInit(30, 26);call #Ultimate.allocInit(9, 27);call #Ultimate.allocInit(25, 28);~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4; 209#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret48#1, main_~retValue_acc~9#1, main_~tmp~5#1;havoc main_~retValue_acc~9#1;havoc main_~tmp~5#1;assume { :begin_inline_select_helpers } true; 210#L84 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 176#L77 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~1#1;havoc valid_product_~retValue_acc~1#1;valid_product_~retValue_acc~1#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~1#1; 177#L92 main_#t~ret48#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~5#1 := main_#t~ret48#1;havoc main_#t~ret48#1; 207#L847 assume 0 != main_~tmp~5#1;assume { :begin_inline_setup } true; 198#L824 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet14#1, test_#t~nondet15#1, test_#t~nondet16#1, test_#t~nondet17#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; 199#L235-2 [2021-12-14 23:38:59,356 INFO L793 eck$LassoCheckResult]: Loop: 199#L235-2 assume !false; 214#L236 assume test_~splverifierCounter~0#1 < 4; 200#L237 test_~tmp~0#1 := test_#t~nondet14#1;havoc test_#t~nondet14#1; 192#L245 assume !(0 != test_~tmp~0#1); 173#L245-2 test_~tmp___0~0#1 := test_#t~nondet15#1;havoc test_#t~nondet15#1; 174#L255 assume !(0 != test_~tmp___0~0#1); 183#L255-2 test_~tmp___2~0#1 := test_#t~nondet16#1;havoc test_#t~nondet16#1; 158#L265 assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 160#L218 assume { :end_inline_startSystem } true; 212#L273-2 assume { :begin_inline_timeShift } true; 213#L114 assume !(0 != ~pumpRunning~0); 185#L114-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true; 211#L138 assume { :end_inline_processEnvironment } true; 203#L121-1 assume { :begin_inline___utac_acc__Specification4_spec__1 } true;havoc __utac_acc__Specification4_spec__1_#t~ret23#1, __utac_acc__Specification4_spec__1_#t~ret24#1, __utac_acc__Specification4_spec__1_~tmp~1#1, __utac_acc__Specification4_spec__1_~tmp___0~1#1;havoc __utac_acc__Specification4_spec__1_~tmp~1#1;havoc __utac_acc__Specification4_spec__1_~tmp___0~1#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~5#1;havoc getWaterLevel_~retValue_acc~5#1;getWaterLevel_~retValue_acc~5#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~5#1; 204#L368 __utac_acc__Specification4_spec__1_#t~ret23#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification4_spec__1_~tmp~1#1 := __utac_acc__Specification4_spec__1_#t~ret23#1;havoc __utac_acc__Specification4_spec__1_#t~ret23#1; 208#L381 assume !(0 == __utac_acc__Specification4_spec__1_~tmp~1#1); 182#L381-1 assume { :end_inline___utac_acc__Specification4_spec__1 } true; 197#L131 assume { :end_inline_timeShift } true; 199#L235-2 [2021-12-14 23:38:59,356 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 23:38:59,357 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 2 times [2021-12-14 23:38:59,357 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 23:38:59,357 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1667446630] [2021-12-14 23:38:59,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 23:38:59,357 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 23:38:59,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-14 23:38:59,375 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-14 23:38:59,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-14 23:38:59,404 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-14 23:38:59,406 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 23:38:59,406 INFO L85 PathProgramCache]: Analyzing trace with hash 1006721862, now seen corresponding path program 1 times [2021-12-14 23:38:59,406 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 23:38:59,407 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1622997471] [2021-12-14 23:38:59,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 23:38:59,410 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 23:38:59,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-14 23:38:59,417 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-14 23:38:59,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-14 23:38:59,428 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-14 23:38:59,431 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 23:38:59,432 INFO L85 PathProgramCache]: Analyzing trace with hash -2105604086, now seen corresponding path program 1 times [2021-12-14 23:38:59,432 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 23:38:59,432 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [485673650] [2021-12-14 23:38:59,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 23:38:59,435 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 23:38:59,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-14 23:38:59,452 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-14 23:38:59,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-14 23:38:59,466 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-14 23:39:01,864 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 14.12 11:39:01 BoogieIcfgContainer [2021-12-14 23:39:01,865 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-12-14 23:39:01,865 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-14 23:39:01,865 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-14 23:39:01,865 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-14 23:39:01,865 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 11:38:58" (3/4) ... [2021-12-14 23:39:01,867 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2021-12-14 23:39:01,917 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-12-14 23:39:01,918 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-14 23:39:01,918 INFO L158 Benchmark]: Toolchain (without parser) took 3770.04ms. Allocated memory was 92.3MB in the beginning and 155.2MB in the end (delta: 62.9MB). Free memory was 63.9MB in the beginning and 101.4MB in the end (delta: -37.5MB). Peak memory consumption was 26.2MB. Max. memory is 16.1GB. [2021-12-14 23:39:01,919 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 92.3MB. Free memory is still 51.7MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-14 23:39:01,920 INFO L158 Benchmark]: CACSL2BoogieTranslator took 334.76ms. Allocated memory was 92.3MB in the beginning and 127.9MB in the end (delta: 35.7MB). Free memory was 63.6MB in the beginning and 97.8MB in the end (delta: -34.2MB). Peak memory consumption was 11.9MB. Max. memory is 16.1GB. [2021-12-14 23:39:01,929 INFO L158 Benchmark]: Boogie Procedure Inliner took 38.88ms. Allocated memory is still 127.9MB. Free memory was 97.4MB in the beginning and 95.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-14 23:39:01,934 INFO L158 Benchmark]: Boogie Preprocessor took 29.63ms. Allocated memory is still 127.9MB. Free memory was 95.3MB in the beginning and 93.6MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-14 23:39:01,934 INFO L158 Benchmark]: RCFGBuilder took 357.52ms. Allocated memory is still 127.9MB. Free memory was 93.6MB in the beginning and 79.1MB in the end (delta: 14.5MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2021-12-14 23:39:01,935 INFO L158 Benchmark]: BuchiAutomizer took 2948.62ms. Allocated memory was 127.9MB in the beginning and 155.2MB in the end (delta: 27.3MB). Free memory was 79.1MB in the beginning and 103.4MB in the end (delta: -24.3MB). Peak memory consumption was 55.3MB. Max. memory is 16.1GB. [2021-12-14 23:39:01,935 INFO L158 Benchmark]: Witness Printer took 52.75ms. Allocated memory is still 155.2MB. Free memory was 103.4MB in the beginning and 101.4MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-14 23:39:01,938 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 92.3MB. Free memory is still 51.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 334.76ms. Allocated memory was 92.3MB in the beginning and 127.9MB in the end (delta: 35.7MB). Free memory was 63.6MB in the beginning and 97.8MB in the end (delta: -34.2MB). Peak memory consumption was 11.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 38.88ms. Allocated memory is still 127.9MB. Free memory was 97.4MB in the beginning and 95.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 29.63ms. Allocated memory is still 127.9MB. Free memory was 95.3MB in the beginning and 93.6MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 357.52ms. Allocated memory is still 127.9MB. Free memory was 93.6MB in the beginning and 79.1MB in the end (delta: 14.5MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * BuchiAutomizer took 2948.62ms. Allocated memory was 127.9MB in the beginning and 155.2MB in the end (delta: 27.3MB). Free memory was 79.1MB in the beginning and 103.4MB in the end (delta: -24.3MB). Peak memory consumption was 55.3MB. Max. memory is 16.1GB. * Witness Printer took 52.75ms. Allocated memory is still 155.2MB. Free memory was 103.4MB in the beginning and 101.4MB in the end (delta: 2.0MB). 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 3 locations. The remainder module has 63 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 2.8s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 2.7s. 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 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 63 states and ocurred in iteration 1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 85 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 85 mSDsluCounter, 87 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 3 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 3 IncrementalHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3 mSolverCounterUnsat, 87 mSDtfsCounter, 3 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown 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: 235]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=1} State at position 1 is {splverifierCounter=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2f4d44ed=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7fcdd968=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7e13d280=0, head=0, pumpRunning=0, tmp___0=0, NULL=1, tmp___0=0, methaneLevelCritical=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@62f39721=0, retValue_acc=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@367da3d7=29, \result=1, tmp=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@48ea8fd8=0, retValue_acc=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1f63c906=0, tmp___2=29, tmp=0, cleanupTimeShifts=4, tmp=1, \result=0, head=0, \result=1, tmp___1=0, retValue_acc=1, NULL=0, waterLevel=1, systemActive=1} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 235]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L106] int pumpRunning = 0; [L107] int systemActive = 1; [L293] int waterLevel = 1; [L294] int methaneLevelCritical = 0; [L568] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L765] int cleanupTimeShifts = 4; [L838] int retValue_acc ; [L839] int tmp ; [L843] FCALL select_helpers() [L844] FCALL select_features() [L845] CALL, EXPR valid_product() [L88] int retValue_acc ; [L91] retValue_acc = 1 [L92] return (retValue_acc); [L845] RET, EXPR valid_product() [L845] tmp = valid_product() [L847] COND TRUE \read(tmp) [L849] FCALL setup() [L850] CALL runTest() [L832] CALL test() [L226] int splverifierCounter ; [L227] int tmp ; [L228] int tmp___0 ; [L229] int tmp___1 ; [L230] int tmp___2 ; [L233] splverifierCounter = 0 Loop: [L235] COND TRUE 1 [L237] COND TRUE splverifierCounter < 4 [L243] tmp = __VERIFIER_nondet_int() [L245] COND FALSE !(\read(tmp)) [L253] tmp___0 = __VERIFIER_nondet_int() [L255] COND FALSE !(\read(tmp___0)) [L263] tmp___2 = __VERIFIER_nondet_int() [L265] COND TRUE \read(tmp___2) [L267] CALL startSystem() [L217] systemActive = 1 [L267] RET startSystem() [L280] CALL timeShift() [L114] COND FALSE !(\read(pumpRunning)) [L121] COND TRUE \read(systemActive) [L123] FCALL processEnvironment() [L129] CALL __utac_acc__Specification4_spec__1() [L374] int tmp ; [L375] int tmp___0 ; [L379] CALL, EXPR getWaterLevel() [L364] int retValue_acc ; [L367] retValue_acc = waterLevel [L368] return (retValue_acc); [L379] RET, EXPR getWaterLevel() [L379] tmp = getWaterLevel() [L381] COND FALSE !(tmp == 0) [L129] RET __utac_acc__Specification4_spec__1() [L280] RET timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2021-12-14 23:39:01,987 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM)