./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/minepump_spec5_product12.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version c3fed411 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_spec5_product12.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 a08a330faab409752e65fe7d3101f81f24601e18bc944ca2e918542b1c9d8232 --- Real Ultimate output --- This is Ultimate 0.2.2-tmp.no-commuhash-c3fed41 [2021-12-19 19:12:26,896 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-19 19:12:26,927 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-19 19:12:26,950 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-19 19:12:26,952 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-19 19:12:26,955 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-19 19:12:26,956 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-19 19:12:26,961 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-19 19:12:26,962 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-19 19:12:26,965 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-19 19:12:26,966 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-19 19:12:26,967 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-19 19:12:26,967 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-19 19:12:26,969 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-19 19:12:26,970 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-19 19:12:26,972 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-19 19:12:26,974 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-19 19:12:26,975 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-19 19:12:26,976 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-19 19:12:26,978 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-19 19:12:26,981 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-19 19:12:26,982 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-19 19:12:26,983 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-19 19:12:26,984 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-19 19:12:26,985 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-19 19:12:26,987 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-19 19:12:26,987 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-19 19:12:26,988 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-19 19:12:26,989 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-19 19:12:26,989 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-19 19:12:26,990 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-19 19:12:26,990 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-19 19:12:26,991 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-19 19:12:26,992 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-19 19:12:26,993 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-19 19:12:26,993 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-19 19:12:26,994 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-19 19:12:26,994 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-19 19:12:26,995 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-19 19:12:26,996 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-19 19:12:26,996 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-19 19:12:26,997 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-12-19 19:12:27,021 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-19 19:12:27,022 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-19 19:12:27,022 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-19 19:12:27,022 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-19 19:12:27,023 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-19 19:12:27,023 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-19 19:12:27,023 INFO L138 SettingsManager]: * Use SBE=true [2021-12-19 19:12:27,024 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-12-19 19:12:27,024 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-12-19 19:12:27,024 INFO L138 SettingsManager]: * Use old map elimination=false [2021-12-19 19:12:27,024 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-12-19 19:12:27,025 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-12-19 19:12:27,025 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-12-19 19:12:27,025 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-19 19:12:27,025 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-19 19:12:27,025 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-12-19 19:12:27,025 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-19 19:12:27,025 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-19 19:12:27,026 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-19 19:12:27,026 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-12-19 19:12:27,026 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-12-19 19:12:27,026 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-12-19 19:12:27,026 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-19 19:12:27,026 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-19 19:12:27,027 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-12-19 19:12:27,028 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-19 19:12:27,028 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-12-19 19:12:27,028 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-19 19:12:27,028 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-19 19:12:27,028 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-19 19:12:27,028 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-19 19:12:27,029 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-19 19:12:27,029 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-12-19 19:12:27,029 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a08a330faab409752e65fe7d3101f81f24601e18bc944ca2e918542b1c9d8232 [2021-12-19 19:12:27,247 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-19 19:12:27,265 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-19 19:12:27,266 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-19 19:12:27,267 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-19 19:12:27,279 INFO L275 PluginConnector]: CDTParser initialized [2021-12-19 19:12:27,280 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec5_product12.cil.c [2021-12-19 19:12:27,348 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/eae1d4829/46b55a633746468f9eceab0d070024f7/FLAG17b65b1e8 [2021-12-19 19:12:27,758 INFO L306 CDTParser]: Found 1 translation units. [2021-12-19 19:12:27,758 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec5_product12.cil.c [2021-12-19 19:12:27,765 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/eae1d4829/46b55a633746468f9eceab0d070024f7/FLAG17b65b1e8 [2021-12-19 19:12:27,776 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/eae1d4829/46b55a633746468f9eceab0d070024f7 [2021-12-19 19:12:27,778 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-19 19:12:27,779 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-19 19:12:27,780 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-19 19:12:27,780 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-19 19:12:27,782 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-19 19:12:27,783 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.12 07:12:27" (1/1) ... [2021-12-19 19:12:27,784 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@ec739ac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 07:12:27, skipping insertion in model container [2021-12-19 19:12:27,784 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.12 07:12:27" (1/1) ... [2021-12-19 19:12:27,788 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-19 19:12:27,836 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-19 19:12:27,997 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_spec5_product12.cil.c[6299,6312] [2021-12-19 19:12:28,067 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-19 19:12:28,080 INFO L203 MainTranslator]: Completed pre-run [2021-12-19 19:12:28,114 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_spec5_product12.cil.c[6299,6312] [2021-12-19 19:12:28,148 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-19 19:12:28,163 INFO L208 MainTranslator]: Completed translation [2021-12-19 19:12:28,163 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 07:12:28 WrapperNode [2021-12-19 19:12:28,163 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-19 19:12:28,165 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-19 19:12:28,165 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-19 19:12:28,165 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-19 19:12:28,170 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 07:12:28" (1/1) ... [2021-12-19 19:12:28,188 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 07:12:28" (1/1) ... [2021-12-19 19:12:28,206 INFO L137 Inliner]: procedures = 54, calls = 152, calls flagged for inlining = 49, calls inlined = 42, statements flattened = 328 [2021-12-19 19:12:28,207 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-19 19:12:28,207 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-19 19:12:28,207 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-19 19:12:28,207 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-19 19:12:28,213 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 07:12:28" (1/1) ... [2021-12-19 19:12:28,213 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 07:12:28" (1/1) ... [2021-12-19 19:12:28,215 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 07:12:28" (1/1) ... [2021-12-19 19:12:28,215 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 07:12:28" (1/1) ... [2021-12-19 19:12:28,234 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 07:12:28" (1/1) ... [2021-12-19 19:12:28,238 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 07:12:28" (1/1) ... [2021-12-19 19:12:28,239 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 07:12:28" (1/1) ... [2021-12-19 19:12:28,240 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-19 19:12:28,241 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-19 19:12:28,241 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-19 19:12:28,241 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-19 19:12:28,242 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 07:12:28" (1/1) ... [2021-12-19 19:12:28,257 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-19 19:12:28,266 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 19:12:28,280 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) [2021-12-19 19:12:28,287 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 [2021-12-19 19:12:28,306 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-19 19:12:28,306 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-19 19:12:28,306 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-19 19:12:28,306 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-19 19:12:28,349 INFO L236 CfgBuilder]: Building ICFG [2021-12-19 19:12:28,350 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-19 19:12:28,594 INFO L277 CfgBuilder]: Performing block encoding [2021-12-19 19:12:28,599 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-19 19:12:28,608 INFO L301 CfgBuilder]: Removed 2 assume(true) statements. [2021-12-19 19:12:28,610 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.12 07:12:28 BoogieIcfgContainer [2021-12-19 19:12:28,610 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-19 19:12:28,611 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-12-19 19:12:28,611 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-12-19 19:12:28,613 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-12-19 19:12:28,614 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-19 19:12:28,614 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 19.12 07:12:27" (1/3) ... [2021-12-19 19:12:28,614 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1c7d71e1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 19.12 07:12:28, skipping insertion in model container [2021-12-19 19:12:28,615 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-19 19:12:28,615 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 07:12:28" (2/3) ... [2021-12-19 19:12:28,616 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1c7d71e1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 19.12 07:12:28, skipping insertion in model container [2021-12-19 19:12:28,616 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-19 19:12:28,616 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.12 07:12:28" (3/3) ... [2021-12-19 19:12:28,617 INFO L388 chiAutomizerObserver]: Analyzing ICFG minepump_spec5_product12.cil.c [2021-12-19 19:12:28,650 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-12-19 19:12:28,650 INFO L360 BuchiCegarLoop]: Hoare is false [2021-12-19 19:12:28,650 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-12-19 19:12:28,650 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-12-19 19:12:28,650 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-12-19 19:12:28,650 INFO L364 BuchiCegarLoop]: Difference is false [2021-12-19 19:12:28,650 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-12-19 19:12:28,651 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-12-19 19:12:28,663 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 90 states, 89 states have (on average 1.3595505617977528) internal successors, (121), 89 states have internal predecessors, (121), 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) [2021-12-19 19:12:28,685 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 57 [2021-12-19 19:12:28,686 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-19 19:12:28,686 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-19 19:12:28,690 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-12-19 19:12:28,690 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-19 19:12:28,691 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-12-19 19:12:28,691 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 90 states, 89 states have (on average 1.3595505617977528) internal successors, (121), 89 states have internal predecessors, (121), 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) [2021-12-19 19:12:28,696 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 57 [2021-12-19 19:12:28,697 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-19 19:12:28,697 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-19 19:12:28,697 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-12-19 19:12:28,697 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-19 19:12:28,705 INFO L791 eck$LassoCheckResult]: Stem: 69#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);~switchedOnBeforeTS~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0; 52#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret26#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; 76#L911true assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 34#L904true 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; 26#L919true main_#t~ret26#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~3#1 := main_#t~ret26#1;havoc main_#t~ret26#1; 59#L509true assume 0 != main_~tmp~3#1;assume { :begin_inline_setup } true; 84#L482true assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0; 49#L59true assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet22#1, test_#t~nondet23#1, test_#t~nondet24#1, test_#t~nondet25#1, test_~splverifierCounter~0#1, test_~tmp~2#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~2#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 27#L355-2true [2021-12-19 19:12:28,706 INFO L793 eck$LassoCheckResult]: Loop: 27#L355-2true assume !false; 32#L356true assume test_~splverifierCounter~0#1 < 4; 77#L357true test_~tmp~2#1 := test_#t~nondet22#1;havoc test_#t~nondet22#1; 72#L365true assume !(0 != test_~tmp~2#1); 86#L365-2true test_~tmp___0~1#1 := test_#t~nondet23#1;havoc test_#t~nondet23#1; 18#L375true assume !(0 != test_~tmp___0~1#1); 54#L375-2true test_~tmp___2~0#1 := test_#t~nondet24#1;havoc test_#t~nondet24#1; 22#L385true assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 44#L258true assume { :end_inline_startSystem } true; 60#L393-2true assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret4#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~1#1;havoc isPumpRunning_~retValue_acc~1#1;isPumpRunning_~retValue_acc~1#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~1#1; 8#L198true __utac_acc__Specification5_spec__2_#t~ret4#1 := isPumpRunning_#res#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret4#1;havoc __utac_acc__Specification5_spec__2_#t~ret4#1; 24#L69true assume { :end_inline___utac_acc__Specification5_spec__2 } true; 40#L121true assume !(0 != ~pumpRunning~0); 12#L121-2true assume !(0 != ~systemActive~0); 31#L128-1true assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret5#1, __utac_acc__Specification5_spec__3_#t~ret6#1, __utac_acc__Specification5_spec__3_~tmp~0#1, __utac_acc__Specification5_spec__3_~tmp___0~0#1;havoc __utac_acc__Specification5_spec__3_~tmp~0#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~0#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; 85#L339true __utac_acc__Specification5_spec__3_#t~ret5#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~0#1 := __utac_acc__Specification5_spec__3_#t~ret5#1;havoc __utac_acc__Specification5_spec__3_#t~ret5#1; 15#L80true assume !(2 != __utac_acc__Specification5_spec__3_~tmp~0#1); 63#L80-1true assume { :end_inline___utac_acc__Specification5_spec__3 } true; 87#L138true assume { :end_inline_timeShift } true; 27#L355-2true [2021-12-19 19:12:28,710 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-19 19:12:28,710 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 1 times [2021-12-19 19:12:28,716 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-19 19:12:28,716 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1504065051] [2021-12-19 19:12:28,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 19:12:28,717 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-19 19:12:28,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-19 19:12:28,835 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-19 19:12:28,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-19 19:12:28,880 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-19 19:12:28,882 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-19 19:12:28,882 INFO L85 PathProgramCache]: Analyzing trace with hash 1263778411, now seen corresponding path program 1 times [2021-12-19 19:12:28,883 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-19 19:12:28,884 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1607117555] [2021-12-19 19:12:28,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 19:12:28,884 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-19 19:12:28,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-19 19:12:28,981 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-19 19:12:28,981 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-19 19:12:28,981 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1607117555] [2021-12-19 19:12:28,982 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1607117555] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-19 19:12:28,982 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-19 19:12:28,982 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-19 19:12:28,982 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1396343647] [2021-12-19 19:12:28,983 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-19 19:12:28,986 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-12-19 19:12:28,987 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-19 19:12:29,009 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-19 19:12:29,010 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-19 19:12:29,013 INFO L87 Difference]: Start difference. First operand has 90 states, 89 states have (on average 1.3595505617977528) internal successors, (121), 89 states have internal predecessors, (121), 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 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 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) [2021-12-19 19:12:29,077 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-19 19:12:29,078 INFO L93 Difference]: Finished difference Result 164 states and 208 transitions. [2021-12-19 19:12:29,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-19 19:12:29,083 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 164 states and 208 transitions. [2021-12-19 19:12:29,095 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 104 [2021-12-19 19:12:29,100 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 164 states to 144 states and 187 transitions. [2021-12-19 19:12:29,101 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 144 [2021-12-19 19:12:29,103 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 144 [2021-12-19 19:12:29,103 INFO L73 IsDeterministic]: Start isDeterministic. Operand 144 states and 187 transitions. [2021-12-19 19:12:29,104 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-19 19:12:29,105 INFO L681 BuchiCegarLoop]: Abstraction has 144 states and 187 transitions. [2021-12-19 19:12:29,116 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144 states and 187 transitions. [2021-12-19 19:12:29,133 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144 to 141. [2021-12-19 19:12:29,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 141 states, 141 states have (on average 1.297872340425532) internal successors, (183), 140 states have internal predecessors, (183), 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) [2021-12-19 19:12:29,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141 states to 141 states and 183 transitions. [2021-12-19 19:12:29,139 INFO L704 BuchiCegarLoop]: Abstraction has 141 states and 183 transitions. [2021-12-19 19:12:29,139 INFO L587 BuchiCegarLoop]: Abstraction has 141 states and 183 transitions. [2021-12-19 19:12:29,140 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-12-19 19:12:29,140 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 141 states and 183 transitions. [2021-12-19 19:12:29,141 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 101 [2021-12-19 19:12:29,141 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-19 19:12:29,142 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-19 19:12:29,143 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-12-19 19:12:29,143 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-19 19:12:29,143 INFO L791 eck$LassoCheckResult]: Stem: 344#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);~switchedOnBeforeTS~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0; 325#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret26#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; 326#L911 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 304#L904 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; 290#L919 main_#t~ret26#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~3#1 := main_#t~ret26#1;havoc main_#t~ret26#1; 291#L509 assume 0 != main_~tmp~3#1;assume { :begin_inline_setup } true; 332#L482 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0; 321#L59 assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet22#1, test_#t~nondet23#1, test_#t~nondet24#1, test_#t~nondet25#1, test_~splverifierCounter~0#1, test_~tmp~2#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~2#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 322#L355-2 [2021-12-19 19:12:29,143 INFO L793 eck$LassoCheckResult]: Loop: 322#L355-2 assume !false; 362#L356 assume test_~splverifierCounter~0#1 < 4; 363#L357 test_~tmp~2#1 := test_#t~nondet22#1;havoc test_#t~nondet22#1; 402#L365 assume !(0 != test_~tmp~2#1); 352#L365-2 test_~tmp___0~1#1 := test_#t~nondet23#1;havoc test_#t~nondet23#1; 281#L375 assume !(0 != test_~tmp___0~1#1); 283#L375-2 test_~tmp___2~0#1 := test_#t~nondet24#1;havoc test_#t~nondet24#1; 327#L385 assume !(0 != test_~tmp___2~0#1);test_~tmp___1~0#1 := test_#t~nondet25#1;havoc test_#t~nondet25#1; 376#L393 assume !(0 != test_~tmp___1~0#1); 317#L393-2 assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret4#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~1#1;havoc isPumpRunning_~retValue_acc~1#1;isPumpRunning_~retValue_acc~1#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~1#1; 375#L198 __utac_acc__Specification5_spec__2_#t~ret4#1 := isPumpRunning_#res#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret4#1;havoc __utac_acc__Specification5_spec__2_#t~ret4#1; 288#L69 assume { :end_inline___utac_acc__Specification5_spec__2 } true; 289#L121 assume !(0 != ~pumpRunning~0); 270#L121-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true; 271#L145 assume { :end_inline_processEnvironment } true; 300#L128-1 assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret5#1, __utac_acc__Specification5_spec__3_#t~ret6#1, __utac_acc__Specification5_spec__3_~tmp~0#1, __utac_acc__Specification5_spec__3_~tmp___0~0#1;havoc __utac_acc__Specification5_spec__3_~tmp~0#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~0#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; 301#L339 __utac_acc__Specification5_spec__3_#t~ret5#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~0#1 := __utac_acc__Specification5_spec__3_#t~ret5#1;havoc __utac_acc__Specification5_spec__3_#t~ret5#1; 276#L80 assume !(2 != __utac_acc__Specification5_spec__3_~tmp~0#1); 278#L80-1 assume { :end_inline___utac_acc__Specification5_spec__3 } true; 338#L138 assume { :end_inline_timeShift } true; 322#L355-2 [2021-12-19 19:12:29,144 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-19 19:12:29,144 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 2 times [2021-12-19 19:12:29,145 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-19 19:12:29,145 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1679841232] [2021-12-19 19:12:29,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 19:12:29,146 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-19 19:12:29,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-19 19:12:29,169 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-19 19:12:29,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-19 19:12:29,180 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-19 19:12:29,181 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-19 19:12:29,181 INFO L85 PathProgramCache]: Analyzing trace with hash -1994764373, now seen corresponding path program 1 times [2021-12-19 19:12:29,182 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-19 19:12:29,182 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [567447798] [2021-12-19 19:12:29,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 19:12:29,183 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-19 19:12:29,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-19 19:12:29,187 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-19 19:12:29,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-19 19:12:29,192 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-19 19:12:29,195 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-19 19:12:29,195 INFO L85 PathProgramCache]: Analyzing trace with hash -622238700, now seen corresponding path program 1 times [2021-12-19 19:12:29,195 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-19 19:12:29,196 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1838258453] [2021-12-19 19:12:29,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 19:12:29,196 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-19 19:12:29,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-19 19:12:29,253 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-19 19:12:29,253 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-19 19:12:29,254 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1838258453] [2021-12-19 19:12:29,254 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1838258453] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-19 19:12:29,254 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-19 19:12:29,254 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-19 19:12:29,255 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [209977481] [2021-12-19 19:12:29,255 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-19 19:12:29,392 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-19 19:12:29,392 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-19 19:12:29,392 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-19 19:12:29,393 INFO L87 Difference]: Start difference. First operand 141 states and 183 transitions. cyclomatic complexity: 45 Second operand has 5 states, 5 states have (on average 5.6) internal successors, (28), 4 states have internal predecessors, (28), 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) [2021-12-19 19:12:29,462 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-19 19:12:29,462 INFO L93 Difference]: Finished difference Result 362 states and 459 transitions. [2021-12-19 19:12:29,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-19 19:12:29,463 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 362 states and 459 transitions. [2021-12-19 19:12:29,465 INFO L131 ngComponentsAnalysis]: Automaton has 6 accepting balls. 190 [2021-12-19 19:12:29,467 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 362 states to 362 states and 459 transitions. [2021-12-19 19:12:29,467 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 362 [2021-12-19 19:12:29,467 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 362 [2021-12-19 19:12:29,467 INFO L73 IsDeterministic]: Start isDeterministic. Operand 362 states and 459 transitions. [2021-12-19 19:12:29,469 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-19 19:12:29,469 INFO L681 BuchiCegarLoop]: Abstraction has 362 states and 459 transitions. [2021-12-19 19:12:29,469 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 362 states and 459 transitions. [2021-12-19 19:12:29,493 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 362 to 266. [2021-12-19 19:12:29,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 266 states, 266 states have (on average 1.263157894736842) internal successors, (336), 265 states have internal predecessors, (336), 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) [2021-12-19 19:12:29,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 266 states to 266 states and 336 transitions. [2021-12-19 19:12:29,494 INFO L704 BuchiCegarLoop]: Abstraction has 266 states and 336 transitions. [2021-12-19 19:12:29,494 INFO L587 BuchiCegarLoop]: Abstraction has 266 states and 336 transitions. [2021-12-19 19:12:29,494 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-12-19 19:12:29,494 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 266 states and 336 transitions. [2021-12-19 19:12:29,495 INFO L131 ngComponentsAnalysis]: Automaton has 6 accepting balls. 190 [2021-12-19 19:12:29,495 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-19 19:12:29,495 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-19 19:12:29,496 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-12-19 19:12:29,496 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-19 19:12:29,496 INFO L791 eck$LassoCheckResult]: Stem: 877#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);~switchedOnBeforeTS~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0; 853#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret26#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; 854#L911 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 825#L904 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; 811#L919 main_#t~ret26#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~3#1 := main_#t~ret26#1;havoc main_#t~ret26#1; 812#L509 assume 0 != main_~tmp~3#1;assume { :begin_inline_setup } true; 861#L482 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0; 848#L59 assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet22#1, test_#t~nondet23#1, test_#t~nondet24#1, test_#t~nondet25#1, test_~splverifierCounter~0#1, test_~tmp~2#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~2#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 849#L355-2 [2021-12-19 19:12:29,496 INFO L793 eck$LassoCheckResult]: Loop: 849#L355-2 assume !false; 957#L356 assume test_~splverifierCounter~0#1 < 4; 956#L357 test_~tmp~2#1 := test_#t~nondet22#1;havoc test_#t~nondet22#1; 955#L365 assume !(0 != test_~tmp~2#1); 954#L365-2 test_~tmp___0~1#1 := test_#t~nondet23#1;havoc test_#t~nondet23#1; 952#L375 assume !(0 != test_~tmp___0~1#1); 950#L375-2 test_~tmp___2~0#1 := test_#t~nondet24#1;havoc test_#t~nondet24#1; 949#L385 assume !(0 != test_~tmp___2~0#1);test_~tmp___1~0#1 := test_#t~nondet25#1;havoc test_#t~nondet25#1; 947#L393 assume !(0 != test_~tmp___1~0#1); 948#L393-2 assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret4#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~1#1;havoc isPumpRunning_~retValue_acc~1#1;isPumpRunning_~retValue_acc~1#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~1#1; 786#L198 __utac_acc__Specification5_spec__2_#t~ret4#1 := isPumpRunning_#res#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret4#1;havoc __utac_acc__Specification5_spec__2_#t~ret4#1; 787#L69 assume { :end_inline___utac_acc__Specification5_spec__2 } true; 808#L121 assume !(0 != ~pumpRunning~0); 834#L121-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true; 968#L145 assume { :end_inline_processEnvironment } true; 966#L128-1 assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret5#1, __utac_acc__Specification5_spec__3_#t~ret6#1, __utac_acc__Specification5_spec__3_~tmp~0#1, __utac_acc__Specification5_spec__3_~tmp___0~0#1;havoc __utac_acc__Specification5_spec__3_~tmp~0#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~0#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; 965#L339 __utac_acc__Specification5_spec__3_#t~ret5#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~0#1 := __utac_acc__Specification5_spec__3_#t~ret5#1;havoc __utac_acc__Specification5_spec__3_#t~ret5#1; 964#L80 assume 2 != __utac_acc__Specification5_spec__3_~tmp~0#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~1#1;havoc isPumpRunning_~retValue_acc~1#1;isPumpRunning_~retValue_acc~1#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~1#1; 963#L198-1 __utac_acc__Specification5_spec__3_#t~ret6#1 := isPumpRunning_#res#1;assume { :end_inline_isPumpRunning } true;__utac_acc__Specification5_spec__3_~tmp___0~0#1 := __utac_acc__Specification5_spec__3_#t~ret6#1;havoc __utac_acc__Specification5_spec__3_#t~ret6#1; 962#L84 assume !(0 != __utac_acc__Specification5_spec__3_~tmp___0~0#1); 960#L80-1 assume { :end_inline___utac_acc__Specification5_spec__3 } true; 959#L138 assume { :end_inline_timeShift } true; 849#L355-2 [2021-12-19 19:12:29,497 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-19 19:12:29,497 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 3 times [2021-12-19 19:12:29,497 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-19 19:12:29,497 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [616812230] [2021-12-19 19:12:29,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 19:12:29,498 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-19 19:12:29,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-19 19:12:29,503 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-19 19:12:29,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-19 19:12:29,516 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-19 19:12:29,517 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-19 19:12:29,517 INFO L85 PathProgramCache]: Analyzing trace with hash -1432247610, now seen corresponding path program 1 times [2021-12-19 19:12:29,517 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-19 19:12:29,517 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1549086140] [2021-12-19 19:12:29,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 19:12:29,518 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-19 19:12:29,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-19 19:12:29,521 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-19 19:12:29,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-19 19:12:29,524 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-19 19:12:29,525 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-19 19:12:29,525 INFO L85 PathProgramCache]: Analyzing trace with hash -990035729, now seen corresponding path program 1 times [2021-12-19 19:12:29,525 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-19 19:12:29,525 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [78896478] [2021-12-19 19:12:29,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 19:12:29,525 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-19 19:12:29,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-19 19:12:29,534 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-19 19:12:29,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-19 19:12:29,543 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-19 19:12:31,770 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 19.12 07:12:31 BoogieIcfgContainer [2021-12-19 19:12:31,770 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-12-19 19:12:31,771 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-19 19:12:31,771 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-19 19:12:31,771 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-19 19:12:31,771 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.12 07:12:28" (3/4) ... [2021-12-19 19:12:31,773 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2021-12-19 19:12:31,807 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-12-19 19:12:31,807 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-19 19:12:31,808 INFO L158 Benchmark]: Toolchain (without parser) took 4028.73ms. Allocated memory was 163.6MB in the beginning and 245.4MB in the end (delta: 81.8MB). Free memory was 135.0MB in the beginning and 124.0MB in the end (delta: 11.0MB). Peak memory consumption was 92.8MB. Max. memory is 16.1GB. [2021-12-19 19:12:31,808 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 83.9MB. Free memory was 41.7MB in the beginning and 41.7MB in the end (delta: 43.2kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-19 19:12:31,808 INFO L158 Benchmark]: CACSL2BoogieTranslator took 383.59ms. Allocated memory is still 163.6MB. Free memory was 135.0MB in the beginning and 132.1MB in the end (delta: 2.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-12-19 19:12:31,809 INFO L158 Benchmark]: Boogie Procedure Inliner took 42.14ms. Allocated memory is still 163.6MB. Free memory was 132.1MB in the beginning and 129.6MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-19 19:12:31,809 INFO L158 Benchmark]: Boogie Preprocessor took 33.45ms. Allocated memory is still 163.6MB. Free memory was 129.6MB in the beginning and 127.9MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-19 19:12:31,809 INFO L158 Benchmark]: RCFGBuilder took 369.03ms. Allocated memory is still 163.6MB. Free memory was 127.9MB in the beginning and 112.3MB in the end (delta: 15.6MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2021-12-19 19:12:31,810 INFO L158 Benchmark]: BuchiAutomizer took 3159.63ms. Allocated memory was 163.6MB in the beginning and 245.4MB in the end (delta: 81.8MB). Free memory was 112.3MB in the beginning and 126.1MB in the end (delta: -13.7MB). Peak memory consumption was 126.8MB. Max. memory is 16.1GB. [2021-12-19 19:12:31,810 INFO L158 Benchmark]: Witness Printer took 36.48ms. Allocated memory is still 245.4MB. Free memory was 126.1MB in the beginning and 124.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-19 19:12:31,812 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10ms. Allocated memory is still 83.9MB. Free memory was 41.7MB in the beginning and 41.7MB in the end (delta: 43.2kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 383.59ms. Allocated memory is still 163.6MB. Free memory was 135.0MB in the beginning and 132.1MB in the end (delta: 2.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 42.14ms. Allocated memory is still 163.6MB. Free memory was 132.1MB in the beginning and 129.6MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 33.45ms. Allocated memory is still 163.6MB. Free memory was 129.6MB in the beginning and 127.9MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 369.03ms. Allocated memory is still 163.6MB. Free memory was 127.9MB in the beginning and 112.3MB in the end (delta: 15.6MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * BuchiAutomizer took 3159.63ms. Allocated memory was 163.6MB in the beginning and 245.4MB in the end (delta: 81.8MB). Free memory was 112.3MB in the beginning and 126.1MB in the end (delta: -13.7MB). Peak memory consumption was 126.8MB. Max. memory is 16.1GB. * Witness Printer took 36.48ms. Allocated memory is still 245.4MB. Free memory was 126.1MB in the beginning and 124.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 2 terminating modules (2 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.2 modules have a trivial ranking function, the largest among these consists of 5 locations. The remainder module has 266 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 3.1s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 2.7s. Construction of modules took 0.0s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 0. Minimization of det autom 2. Minimization of nondet autom 0. Automata minimization 0.1s AutomataMinimizationTime, 2 MinimizatonAttempts, 99 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 266 states and ocurred in iteration 2. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 379 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 379 mSDsluCounter, 627 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 384 mSDsCounter, 22 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 75 IncrementalHoareTripleChecker+Invalid, 97 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 22 mSolverCounterUnsat, 243 mSDtfsCounter, 75 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI1 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: 355]: 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, tmp___0=0, pumpRunning=0, NULL=1, retValue_acc=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@525346c5=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3590e8b0=0, methaneLevelCritical=0, retValue_acc=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@57b8c49a=0, \result=1, tmp=1, retValue_acc=0, tmp___2=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@31abb878=0, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3a68b5f=0, tmp=1, cleanupTimeShifts=4, switchedOnBeforeTS=0, tmp=0, \result=0, tmp___0=0, head=0, retValue_acc=1, \result=1, tmp___1=0, NULL=0, waterLevel=1, systemActive=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@bac1598=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@48aa3000=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@20da1761=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 355]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L53] int switchedOnBeforeTS ; [L111] int pumpRunning = 0; [L112] int systemActive = 1; [L264] int waterLevel = 1; [L265] int methaneLevelCritical = 0; [L423] int cleanupTimeShifts = 4; [L692] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L500] int retValue_acc ; [L501] int tmp ; [L505] FCALL select_helpers() [L506] FCALL select_features() [L507] CALL, EXPR valid_product() [L915] int retValue_acc ; [L918] retValue_acc = 1 [L919] return (retValue_acc); [L507] RET, EXPR valid_product() [L507] tmp = valid_product() [L509] COND TRUE \read(tmp) [L511] FCALL setup() [L512] CALL runTest() [L490] CALL __utac_acc__Specification5_spec__1() [L58] switchedOnBeforeTS = 0 [L490] RET __utac_acc__Specification5_spec__1() [L491] CALL test() [L346] int splverifierCounter ; [L347] int tmp ; [L348] int tmp___0 ; [L349] int tmp___1 ; [L350] int tmp___2 ; [L353] splverifierCounter = 0 Loop: [L355] COND TRUE 1 [L357] COND TRUE splverifierCounter < 4 [L363] tmp = __VERIFIER_nondet_int() [L365] COND FALSE !(\read(tmp)) [L373] tmp___0 = __VERIFIER_nondet_int() [L375] COND FALSE !(\read(tmp___0)) [L383] tmp___2 = __VERIFIER_nondet_int() [L385] COND FALSE !(\read(tmp___2)) [L391] tmp___1 = __VERIFIER_nondet_int() [L393] COND FALSE !(\read(tmp___1)) [L402] CALL timeShift() [L119] CALL __utac_acc__Specification5_spec__2() [L67] CALL, EXPR isPumpRunning() [L194] int retValue_acc ; [L197] retValue_acc = pumpRunning [L198] return (retValue_acc); [L67] RET, EXPR isPumpRunning() [L67] switchedOnBeforeTS = isPumpRunning() [L119] RET __utac_acc__Specification5_spec__2() [L121] COND FALSE !(\read(pumpRunning)) [L128] COND TRUE \read(systemActive) [L130] FCALL processEnvironment() [L136] CALL __utac_acc__Specification5_spec__3() [L73] int tmp ; [L74] int tmp___0 ; [L78] CALL, EXPR getWaterLevel() [L335] int retValue_acc ; [L338] retValue_acc = waterLevel [L339] return (retValue_acc); [L78] RET, EXPR getWaterLevel() [L78] tmp = getWaterLevel() [L80] COND TRUE tmp != 2 [L82] CALL, EXPR isPumpRunning() [L194] int retValue_acc ; [L197] retValue_acc = pumpRunning [L198] return (retValue_acc); [L82] RET, EXPR isPumpRunning() [L82] tmp___0 = isPumpRunning() [L84] COND FALSE !(\read(tmp___0)) [L136] RET __utac_acc__Specification5_spec__3() [L402] RET timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2021-12-19 19:12:31,871 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)