./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/minepump_spec4_product11.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version e19ca921 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_product11.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 bd7f84863cb412e83f8c5773a09de3282aa45b8f86409f0c880aae27635b0b5f --- Real Ultimate output --- This is Ultimate 0.2.2-dev-e19ca92 [2021-12-22 20:25:35,983 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-22 20:25:35,986 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-22 20:25:36,014 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-22 20:25:36,016 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-22 20:25:36,019 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-22 20:25:36,021 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-22 20:25:36,023 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-22 20:25:36,024 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-22 20:25:36,025 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-22 20:25:36,025 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-22 20:25:36,026 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-22 20:25:36,027 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-22 20:25:36,029 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-22 20:25:36,031 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-22 20:25:36,032 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-22 20:25:36,034 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-22 20:25:36,038 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-22 20:25:36,039 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-22 20:25:36,040 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-22 20:25:36,041 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-22 20:25:36,045 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-22 20:25:36,045 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-22 20:25:36,046 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-22 20:25:36,047 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-22 20:25:36,051 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-22 20:25:36,051 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-22 20:25:36,052 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-22 20:25:36,052 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-22 20:25:36,053 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-22 20:25:36,054 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-22 20:25:36,054 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-22 20:25:36,055 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-22 20:25:36,055 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-22 20:25:36,056 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-22 20:25:36,057 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-22 20:25:36,058 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-22 20:25:36,058 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-22 20:25:36,058 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-22 20:25:36,059 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-22 20:25:36,059 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-22 20:25:36,060 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-12-22 20:25:36,077 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-22 20:25:36,077 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-22 20:25:36,077 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-22 20:25:36,077 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-22 20:25:36,078 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-22 20:25:36,078 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-22 20:25:36,079 INFO L138 SettingsManager]: * Use SBE=true [2021-12-22 20:25:36,079 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-12-22 20:25:36,079 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-12-22 20:25:36,079 INFO L138 SettingsManager]: * Use old map elimination=false [2021-12-22 20:25:36,080 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-12-22 20:25:36,080 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-12-22 20:25:36,080 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-12-22 20:25:36,080 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-22 20:25:36,080 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-22 20:25:36,081 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-12-22 20:25:36,081 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-22 20:25:36,081 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-22 20:25:36,081 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-22 20:25:36,081 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-12-22 20:25:36,081 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-12-22 20:25:36,081 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-12-22 20:25:36,082 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-22 20:25:36,082 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-22 20:25:36,082 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-12-22 20:25:36,082 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-22 20:25:36,082 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-12-22 20:25:36,083 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-22 20:25:36,083 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-22 20:25:36,083 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-22 20:25:36,083 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-22 20:25:36,083 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-22 20:25:36,084 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-12-22 20:25:36,084 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bd7f84863cb412e83f8c5773a09de3282aa45b8f86409f0c880aae27635b0b5f [2021-12-22 20:25:36,260 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-22 20:25:36,276 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-22 20:25:36,278 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-22 20:25:36,279 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-22 20:25:36,284 INFO L275 PluginConnector]: CDTParser initialized [2021-12-22 20:25:36,285 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec4_product11.cil.c [2021-12-22 20:25:36,339 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/91db28a12/7714f5b7a15847a081b061c2f26f759f/FLAG6ed1f9294 [2021-12-22 20:25:36,690 INFO L306 CDTParser]: Found 1 translation units. [2021-12-22 20:25:36,690 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec4_product11.cil.c [2021-12-22 20:25:36,698 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/91db28a12/7714f5b7a15847a081b061c2f26f759f/FLAG6ed1f9294 [2021-12-22 20:25:37,096 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/91db28a12/7714f5b7a15847a081b061c2f26f759f [2021-12-22 20:25:37,098 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-22 20:25:37,099 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-22 20:25:37,100 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-22 20:25:37,100 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-22 20:25:37,102 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-22 20:25:37,103 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 08:25:37" (1/1) ... [2021-12-22 20:25:37,103 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6b957a6e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:25:37, skipping insertion in model container [2021-12-22 20:25:37,104 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 08:25:37" (1/1) ... [2021-12-22 20:25:37,108 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-22 20:25:37,151 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-22 20:25:37,273 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_product11.cil.c[1605,1618] [2021-12-22 20:25:37,380 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-22 20:25:37,392 INFO L203 MainTranslator]: Completed pre-run [2021-12-22 20:25:37,408 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_product11.cil.c[1605,1618] [2021-12-22 20:25:37,450 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-22 20:25:37,461 INFO L208 MainTranslator]: Completed translation [2021-12-22 20:25:37,462 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:25:37 WrapperNode [2021-12-22 20:25:37,462 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-22 20:25:37,463 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-22 20:25:37,463 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-22 20:25:37,463 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-22 20:25:37,468 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:25:37" (1/1) ... [2021-12-22 20:25:37,477 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:25:37" (1/1) ... [2021-12-22 20:25:37,500 INFO L137 Inliner]: procedures = 51, calls = 148, calls flagged for inlining = 45, calls inlined = 34, statements flattened = 285 [2021-12-22 20:25:37,501 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-22 20:25:37,501 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-22 20:25:37,501 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-22 20:25:37,501 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-22 20:25:37,507 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:25:37" (1/1) ... [2021-12-22 20:25:37,507 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:25:37" (1/1) ... [2021-12-22 20:25:37,508 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:25:37" (1/1) ... [2021-12-22 20:25:37,509 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:25:37" (1/1) ... [2021-12-22 20:25:37,513 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:25:37" (1/1) ... [2021-12-22 20:25:37,516 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:25:37" (1/1) ... [2021-12-22 20:25:37,517 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:25:37" (1/1) ... [2021-12-22 20:25:37,519 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-22 20:25:37,519 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-22 20:25:37,519 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-22 20:25:37,519 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-22 20:25:37,520 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:25:37" (1/1) ... [2021-12-22 20:25:37,530 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-22 20:25:37,548 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 20:25:37,557 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) [2021-12-22 20:25:37,561 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 [2021-12-22 20:25:37,583 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-22 20:25:37,583 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-22 20:25:37,583 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-22 20:25:37,583 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-22 20:25:37,639 INFO L234 CfgBuilder]: Building ICFG [2021-12-22 20:25:37,640 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-22 20:25:37,823 INFO L275 CfgBuilder]: Performing block encoding [2021-12-22 20:25:37,828 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-22 20:25:37,828 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2021-12-22 20:25:37,829 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 08:25:37 BoogieIcfgContainer [2021-12-22 20:25:37,829 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-22 20:25:37,830 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-12-22 20:25:37,830 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-12-22 20:25:37,841 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-12-22 20:25:37,841 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-22 20:25:37,842 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 22.12 08:25:37" (1/3) ... [2021-12-22 20:25:37,842 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@33cf3a86 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.12 08:25:37, skipping insertion in model container [2021-12-22 20:25:37,843 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-22 20:25:37,843 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:25:37" (2/3) ... [2021-12-22 20:25:37,843 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@33cf3a86 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.12 08:25:37, skipping insertion in model container [2021-12-22 20:25:37,843 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-22 20:25:37,844 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 08:25:37" (3/3) ... [2021-12-22 20:25:37,845 INFO L388 chiAutomizerObserver]: Analyzing ICFG minepump_spec4_product11.cil.c [2021-12-22 20:25:37,886 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-12-22 20:25:37,886 INFO L360 BuchiCegarLoop]: Hoare is false [2021-12-22 20:25:37,886 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-12-22 20:25:37,886 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-12-22 20:25:37,886 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-12-22 20:25:37,886 INFO L364 BuchiCegarLoop]: Difference is false [2021-12-22 20:25:37,886 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-12-22 20:25:37,886 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-12-22 20:25:37,905 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 79 states, 78 states have (on average 1.3717948717948718) internal successors, (107), 78 states have internal predecessors, (107), 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) [2021-12-22 20:25:37,920 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 50 [2021-12-22 20:25:37,920 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-22 20:25:37,920 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-22 20:25:37,924 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-12-22 20:25:37,924 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 20:25:37,924 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-12-22 20:25:37,924 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 79 states, 78 states have (on average 1.3717948717948718) internal successors, (107), 78 states have internal predecessors, (107), 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) [2021-12-22 20:25:37,928 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 50 [2021-12-22 20:25:37,928 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-22 20:25:37,928 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-22 20:25:37,929 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-12-22 20:25:37,929 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 20:25:37,932 INFO L791 eck$LassoCheckResult]: Stem: 57#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;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0; 47#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret25#1, main_~retValue_acc~4#1, main_~tmp~3#1;havoc main_~retValue_acc~4#1;havoc main_~tmp~3#1;assume { :begin_inline_select_helpers } true; 49#L873true assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 19#L866true assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~9#1;havoc valid_product_~retValue_acc~9#1;valid_product_~retValue_acc~9#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~9#1; 43#L881true main_#t~ret25#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~3#1 := main_#t~ret25#1;havoc main_#t~ret25#1; 35#L471true assume 0 != main_~tmp~3#1;assume { :begin_inline_setup } true; 46#L445true 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~1#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~1#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 23#L222-2true [2021-12-22 20:25:37,933 INFO L793 eck$LassoCheckResult]: Loop: 23#L222-2true assume !false; 74#L223true assume test_~splverifierCounter~0#1 < 4; 24#L224true test_~tmp~1#1 := test_#t~nondet14#1;havoc test_#t~nondet14#1; 76#L232true assume !(0 != test_~tmp~1#1); 26#L232-2true test_~tmp___0~0#1 := test_#t~nondet15#1;havoc test_#t~nondet15#1; 73#L242true assume !(0 != test_~tmp___0~0#1); 58#L242-2true test_~tmp___2~0#1 := test_#t~nondet16#1;havoc test_#t~nondet16#1; 56#L252true assume 0 != test_~tmp___2~0#1; 11#L258-2true assume { :begin_inline_timeShift } true; 77#L76true assume !(0 != ~pumpRunning~0); 60#L76-2true assume !(0 != ~systemActive~0); 78#L83-1true assume { :begin_inline___utac_acc__Specification4_spec__1 } true;havoc __utac_acc__Specification4_spec__1_#t~ret18#1, __utac_acc__Specification4_spec__1_#t~ret19#1, __utac_acc__Specification4_spec__1_~tmp~2#1, __utac_acc__Specification4_spec__1_~tmp___0~1#1;havoc __utac_acc__Specification4_spec__1_~tmp~2#1;havoc __utac_acc__Specification4_spec__1_~tmp___0~1#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~3#1;havoc getWaterLevel_~retValue_acc~3#1;getWaterLevel_~retValue_acc~3#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~3#1; 80#L381true __utac_acc__Specification4_spec__1_#t~ret18#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification4_spec__1_~tmp~2#1 := __utac_acc__Specification4_spec__1_#t~ret18#1;havoc __utac_acc__Specification4_spec__1_#t~ret18#1; 36#L288true assume !(0 == __utac_acc__Specification4_spec__1_~tmp~2#1); 75#L288-1true assume { :end_inline___utac_acc__Specification4_spec__1 } true; 44#L93true assume { :end_inline_timeShift } true; 23#L222-2true [2021-12-22 20:25:37,936 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 20:25:37,937 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 1 times [2021-12-22 20:25:37,942 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 20:25:37,942 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [391995490] [2021-12-22 20:25:37,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 20:25:37,943 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 20:25:38,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-22 20:25:38,044 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-22 20:25:38,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-22 20:25:38,098 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-22 20:25:38,101 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 20:25:38,102 INFO L85 PathProgramCache]: Analyzing trace with hash 1802262020, now seen corresponding path program 1 times [2021-12-22 20:25:38,102 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 20:25:38,102 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [755972690] [2021-12-22 20:25:38,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 20:25:38,102 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 20:25:38,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-22 20:25:38,108 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-22 20:25:38,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-22 20:25:38,125 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-22 20:25:38,126 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 20:25:38,126 INFO L85 PathProgramCache]: Analyzing trace with hash -1137286200, now seen corresponding path program 1 times [2021-12-22 20:25:38,126 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 20:25:38,127 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1059945694] [2021-12-22 20:25:38,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 20:25:38,127 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 20:25:38,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 20:25:38,274 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-22 20:25:38,274 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 20:25:38,275 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1059945694] [2021-12-22 20:25:38,276 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1059945694] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 20:25:38,276 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 20:25:38,276 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-22 20:25:38,276 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1065251913] [2021-12-22 20:25:38,277 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 20:25:38,381 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 20:25:38,409 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-22 20:25:38,409 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-12-22 20:25:38,411 INFO L87 Difference]: Start difference. First operand has 79 states, 78 states have (on average 1.3717948717948718) internal successors, (107), 78 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 6 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 5 states have internal predecessors, (23), 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) [2021-12-22 20:25:38,501 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 20:25:38,502 INFO L93 Difference]: Finished difference Result 209 states and 263 transitions. [2021-12-22 20:25:38,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-22 20:25:38,507 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 209 states and 263 transitions. [2021-12-22 20:25:38,515 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 131 [2021-12-22 20:25:38,519 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 209 states to 179 states and 233 transitions. [2021-12-22 20:25:38,519 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 179 [2021-12-22 20:25:38,522 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 179 [2021-12-22 20:25:38,522 INFO L73 IsDeterministic]: Start isDeterministic. Operand 179 states and 233 transitions. [2021-12-22 20:25:38,523 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-22 20:25:38,523 INFO L681 BuchiCegarLoop]: Abstraction has 179 states and 233 transitions. [2021-12-22 20:25:38,534 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 179 states and 233 transitions. [2021-12-22 20:25:38,543 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 179 to 118. [2021-12-22 20:25:38,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 118 states, 118 states have (on average 1.305084745762712) internal successors, (154), 117 states have internal predecessors, (154), 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) [2021-12-22 20:25:38,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 118 states and 154 transitions. [2021-12-22 20:25:38,546 INFO L704 BuchiCegarLoop]: Abstraction has 118 states and 154 transitions. [2021-12-22 20:25:38,546 INFO L587 BuchiCegarLoop]: Abstraction has 118 states and 154 transitions. [2021-12-22 20:25:38,547 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-12-22 20:25:38,547 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 118 states and 154 transitions. [2021-12-22 20:25:38,548 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 86 [2021-12-22 20:25:38,551 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-22 20:25:38,551 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-22 20:25:38,552 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-12-22 20:25:38,552 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 20:25:38,552 INFO L791 eck$LassoCheckResult]: Stem: 365#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;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0; 361#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret25#1, main_~retValue_acc~4#1, main_~tmp~3#1;havoc main_~retValue_acc~4#1;havoc main_~tmp~3#1;assume { :begin_inline_select_helpers } true; 362#L873 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 330#L866 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~9#1;havoc valid_product_~retValue_acc~9#1;valid_product_~retValue_acc~9#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~9#1; 331#L881 main_#t~ret25#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~3#1 := main_#t~ret25#1;havoc main_#t~ret25#1; 351#L471 assume 0 != main_~tmp~3#1;assume { :begin_inline_setup } true; 352#L445 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~1#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~1#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 336#L222-2 [2021-12-22 20:25:38,552 INFO L793 eck$LassoCheckResult]: Loop: 336#L222-2 assume !false; 337#L223 assume test_~splverifierCounter~0#1 < 4; 338#L224 test_~tmp~1#1 := test_#t~nondet14#1;havoc test_#t~nondet14#1; 339#L232 assume !(0 != test_~tmp~1#1); 307#L232-2 test_~tmp___0~0#1 := test_#t~nondet15#1;havoc test_#t~nondet15#1; 343#L242 assume !(0 != test_~tmp___0~0#1); 340#L242-2 test_~tmp___2~0#1 := test_#t~nondet16#1;havoc test_#t~nondet16#1; 364#L252 assume 0 != test_~tmp___2~0#1; 313#L258-2 assume { :begin_inline_timeShift } true; 314#L76 assume !(0 != ~pumpRunning~0); 335#L76-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true; 366#L100 assume { :end_inline_processEnvironment } true; 369#L83-1 assume { :begin_inline___utac_acc__Specification4_spec__1 } true;havoc __utac_acc__Specification4_spec__1_#t~ret18#1, __utac_acc__Specification4_spec__1_#t~ret19#1, __utac_acc__Specification4_spec__1_~tmp~2#1, __utac_acc__Specification4_spec__1_~tmp___0~1#1;havoc __utac_acc__Specification4_spec__1_~tmp~2#1;havoc __utac_acc__Specification4_spec__1_~tmp___0~1#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~3#1;havoc getWaterLevel_~retValue_acc~3#1;getWaterLevel_~retValue_acc~3#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~3#1; 372#L381 __utac_acc__Specification4_spec__1_#t~ret18#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification4_spec__1_~tmp~2#1 := __utac_acc__Specification4_spec__1_#t~ret18#1;havoc __utac_acc__Specification4_spec__1_#t~ret18#1; 353#L288 assume !(0 == __utac_acc__Specification4_spec__1_~tmp~2#1); 350#L288-1 assume { :end_inline___utac_acc__Specification4_spec__1 } true; 360#L93 assume { :end_inline_timeShift } true; 336#L222-2 [2021-12-22 20:25:38,552 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 20:25:38,553 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 2 times [2021-12-22 20:25:38,553 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 20:25:38,553 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [231879079] [2021-12-22 20:25:38,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 20:25:38,553 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 20:25:38,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-22 20:25:38,568 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-22 20:25:38,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-22 20:25:38,582 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-22 20:25:38,582 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 20:25:38,582 INFO L85 PathProgramCache]: Analyzing trace with hash 663627436, now seen corresponding path program 1 times [2021-12-22 20:25:38,582 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 20:25:38,583 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [965868753] [2021-12-22 20:25:38,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 20:25:38,583 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 20:25:38,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-22 20:25:38,586 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-22 20:25:38,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-22 20:25:38,596 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-22 20:25:38,597 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 20:25:38,597 INFO L85 PathProgramCache]: Analyzing trace with hash -268054168, now seen corresponding path program 1 times [2021-12-22 20:25:38,598 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 20:25:38,598 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [92122361] [2021-12-22 20:25:38,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 20:25:38,598 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 20:25:38,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-22 20:25:38,615 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-22 20:25:38,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-22 20:25:38,635 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-22 20:25:40,938 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 22.12 08:25:40 BoogieIcfgContainer [2021-12-22 20:25:40,939 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-12-22 20:25:40,939 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-22 20:25:40,939 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-22 20:25:40,940 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-22 20:25:40,940 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 08:25:37" (3/4) ... [2021-12-22 20:25:40,942 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2021-12-22 20:25:40,979 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-12-22 20:25:40,979 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-22 20:25:40,980 INFO L158 Benchmark]: Toolchain (without parser) took 3881.29ms. Allocated memory was 111.1MB in the beginning and 161.5MB in the end (delta: 50.3MB). Free memory was 81.9MB in the beginning and 110.2MB in the end (delta: -28.4MB). Peak memory consumption was 21.4MB. Max. memory is 16.1GB. [2021-12-22 20:25:40,980 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 111.1MB. Free memory was 69.1MB in the beginning and 69.0MB in the end (delta: 90.9kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-22 20:25:40,981 INFO L158 Benchmark]: CACSL2BoogieTranslator took 362.64ms. Allocated memory is still 111.1MB. Free memory was 81.7MB in the beginning and 77.1MB in the end (delta: 4.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-12-22 20:25:40,981 INFO L158 Benchmark]: Boogie Procedure Inliner took 37.88ms. Allocated memory is still 111.1MB. Free memory was 76.9MB in the beginning and 74.5MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-22 20:25:40,982 INFO L158 Benchmark]: Boogie Preprocessor took 17.59ms. Allocated memory is still 111.1MB. Free memory was 74.5MB in the beginning and 73.0MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-22 20:25:40,984 INFO L158 Benchmark]: RCFGBuilder took 310.32ms. Allocated memory is still 111.1MB. Free memory was 72.8MB in the beginning and 58.2MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2021-12-22 20:25:40,984 INFO L158 Benchmark]: BuchiAutomizer took 3108.67ms. Allocated memory was 111.1MB in the beginning and 161.5MB in the end (delta: 50.3MB). Free memory was 58.2MB in the beginning and 112.3MB in the end (delta: -54.1MB). Peak memory consumption was 63.3MB. Max. memory is 16.1GB. [2021-12-22 20:25:40,985 INFO L158 Benchmark]: Witness Printer took 40.17ms. Allocated memory is still 161.5MB. Free memory was 112.3MB in the beginning and 110.2MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-22 20:25:40,987 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 111.1MB. Free memory was 69.1MB in the beginning and 69.0MB in the end (delta: 90.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 362.64ms. Allocated memory is still 111.1MB. Free memory was 81.7MB in the beginning and 77.1MB in the end (delta: 4.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 37.88ms. Allocated memory is still 111.1MB. Free memory was 76.9MB in the beginning and 74.5MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 17.59ms. Allocated memory is still 111.1MB. Free memory was 74.5MB in the beginning and 73.0MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 310.32ms. Allocated memory is still 111.1MB. Free memory was 72.8MB in the beginning and 58.2MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * BuchiAutomizer took 3108.67ms. Allocated memory was 111.1MB in the beginning and 161.5MB in the end (delta: 50.3MB). Free memory was 58.2MB in the beginning and 112.3MB in the end (delta: -54.1MB). Peak memory consumption was 63.3MB. Max. memory is 16.1GB. * Witness Printer took 40.17ms. Allocated memory is still 161.5MB. Free memory was 112.3MB in the beginning and 110.2MB 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 6 locations. The remainder module has 118 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 3.0s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 2.8s. 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, 61 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 118 states and ocurred in iteration 1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 334 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 334 mSDsluCounter, 654 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 563 mSDsCounter, 9 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 42 IncrementalHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 9 mSolverCounterUnsat, 91 mSDtfsCounter, 42 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI0 SFLT0 conc1 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 222]: 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, NULL=0, head=0, pumpRunning=0, tmp___0=0, NULL=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2c972d68=0, tmp___0=0, methaneLevelCritical=0, retValue_acc=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5a95ff58=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@a4e3286=29, \result=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@18b4b789=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1a943579=0, tmp=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@550a358=0, retValue_acc=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@36888bb4=0, tmp___2=29, tmp=0, tmp=1, cleanupTimeShifts=4, \result=0, head=0, retValue_acc=1, \result=1, tmp___1=0, NULL=0, waterLevel=1, systemActive=1} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 222]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L68] int pumpRunning = 0; [L69] int systemActive = 1; [L306] int waterLevel = 1; [L307] int methaneLevelCritical = 0; [L386] int cleanupTimeShifts = 4; [L654] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L462] int retValue_acc ; [L463] int tmp ; [L467] FCALL select_helpers() [L468] FCALL select_features() [L469] CALL, EXPR valid_product() [L877] int retValue_acc ; [L880] retValue_acc = 1 [L881] return (retValue_acc); [L469] RET, EXPR valid_product() [L469] tmp = valid_product() [L471] COND TRUE \read(tmp) [L473] FCALL setup() [L474] CALL runTest() [L453] CALL test() [L213] int splverifierCounter ; [L214] int tmp ; [L215] int tmp___0 ; [L216] int tmp___1 ; [L217] int tmp___2 ; [L220] splverifierCounter = 0 Loop: [L222] COND TRUE 1 [L224] COND TRUE splverifierCounter < 4 [L230] tmp = __VERIFIER_nondet_int() [L232] COND FALSE !(\read(tmp)) [L240] tmp___0 = __VERIFIER_nondet_int() [L242] COND FALSE !(\read(tmp___0)) [L250] tmp___2 = __VERIFIER_nondet_int() [L252] COND TRUE \read(tmp___2) [L267] CALL timeShift() [L76] COND FALSE !(\read(pumpRunning)) [L83] COND TRUE \read(systemActive) [L85] FCALL processEnvironment() [L91] CALL __utac_acc__Specification4_spec__1() [L281] int tmp ; [L282] int tmp___0 ; [L286] CALL, EXPR getWaterLevel() [L377] int retValue_acc ; [L380] retValue_acc = waterLevel [L381] return (retValue_acc); [L286] RET, EXPR getWaterLevel() [L286] tmp = getWaterLevel() [L288] COND FALSE !(tmp == 0) [L91] RET __utac_acc__Specification4_spec__1() [L267] RET timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2021-12-22 20:25:41,035 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM)