./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/minepump_spec3_product24.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version f4b24e32 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_spec3_product24.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 168393e8d033cc8a1f93b6836944286e12246452392b8a342ff0210c89948e1e --- Real Ultimate output --- This is Ultimate 0.2.2-?-f4b24e3 [2022-07-14 15:58:17,164 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-14 15:58:17,165 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-14 15:58:17,184 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-14 15:58:17,185 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-14 15:58:17,185 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-14 15:58:17,186 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-14 15:58:17,187 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-14 15:58:17,189 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-14 15:58:17,189 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-14 15:58:17,190 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-14 15:58:17,191 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-14 15:58:17,191 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-14 15:58:17,191 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-14 15:58:17,192 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-14 15:58:17,193 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-14 15:58:17,193 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-14 15:58:17,194 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-14 15:58:17,195 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-14 15:58:17,196 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-14 15:58:17,197 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-14 15:58:17,198 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-14 15:58:17,198 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-14 15:58:17,199 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-14 15:58:17,200 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-14 15:58:17,202 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-14 15:58:17,202 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-14 15:58:17,202 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-14 15:58:17,203 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-14 15:58:17,203 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-14 15:58:17,204 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-14 15:58:17,204 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-14 15:58:17,204 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-14 15:58:17,205 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-14 15:58:17,205 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-14 15:58:17,206 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-14 15:58:17,206 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-14 15:58:17,207 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-14 15:58:17,207 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-14 15:58:17,207 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-14 15:58:17,208 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-14 15:58:17,209 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-14 15:58:17,209 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2022-07-14 15:58:17,223 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-14 15:58:17,224 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-14 15:58:17,224 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-14 15:58:17,224 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-14 15:58:17,225 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-14 15:58:17,225 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-14 15:58:17,225 INFO L138 SettingsManager]: * Use SBE=true [2022-07-14 15:58:17,226 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-07-14 15:58:17,226 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-07-14 15:58:17,226 INFO L138 SettingsManager]: * Use old map elimination=false [2022-07-14 15:58:17,226 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-07-14 15:58:17,226 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-07-14 15:58:17,226 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-07-14 15:58:17,227 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-14 15:58:17,227 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-14 15:58:17,227 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-07-14 15:58:17,227 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-14 15:58:17,227 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-14 15:58:17,227 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-14 15:58:17,228 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-07-14 15:58:17,228 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-07-14 15:58:17,228 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-07-14 15:58:17,228 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-14 15:58:17,228 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-14 15:58:17,228 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-07-14 15:58:17,229 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-14 15:58:17,229 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-07-14 15:58:17,229 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-14 15:58:17,229 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-14 15:58:17,229 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-14 15:58:17,230 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-14 15:58:17,230 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-07-14 15:58:17,230 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 168393e8d033cc8a1f93b6836944286e12246452392b8a342ff0210c89948e1e [2022-07-14 15:58:17,442 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-14 15:58:17,463 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-14 15:58:17,466 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-14 15:58:17,467 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-14 15:58:17,468 INFO L275 PluginConnector]: CDTParser initialized [2022-07-14 15:58:17,469 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec3_product24.cil.c [2022-07-14 15:58:17,525 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a8cb45383/1b3278f05fda40169ba1bd8838c9a248/FLAG86c57201d [2022-07-14 15:58:17,883 INFO L306 CDTParser]: Found 1 translation units. [2022-07-14 15:58:17,884 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec3_product24.cil.c [2022-07-14 15:58:17,914 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a8cb45383/1b3278f05fda40169ba1bd8838c9a248/FLAG86c57201d [2022-07-14 15:58:18,270 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a8cb45383/1b3278f05fda40169ba1bd8838c9a248 [2022-07-14 15:58:18,273 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-14 15:58:18,274 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-14 15:58:18,276 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-14 15:58:18,276 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-14 15:58:18,278 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-14 15:58:18,279 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.07 03:58:18" (1/1) ... [2022-07-14 15:58:18,279 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@48169a5e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 03:58:18, skipping insertion in model container [2022-07-14 15:58:18,279 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.07 03:58:18" (1/1) ... [2022-07-14 15:58:18,284 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-14 15:58:18,327 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-14 15:58:18,447 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_spec3_product24.cil.c[1605,1618] [2022-07-14 15:58:18,548 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-14 15:58:18,559 INFO L203 MainTranslator]: Completed pre-run [2022-07-14 15:58:18,571 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_spec3_product24.cil.c[1605,1618] [2022-07-14 15:58:18,620 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-14 15:58:18,632 INFO L208 MainTranslator]: Completed translation [2022-07-14 15:58:18,633 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 03:58:18 WrapperNode [2022-07-14 15:58:18,633 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-14 15:58:18,634 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-14 15:58:18,634 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-14 15:58:18,634 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-14 15:58:18,639 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 03:58:18" (1/1) ... [2022-07-14 15:58:18,649 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 03:58:18" (1/1) ... [2022-07-14 15:58:18,698 INFO L137 Inliner]: procedures = 55, calls = 157, calls flagged for inlining = 54, calls inlined = 83, statements flattened = 600 [2022-07-14 15:58:18,698 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-14 15:58:18,698 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-14 15:58:18,699 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-14 15:58:18,699 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-14 15:58:18,711 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 03:58:18" (1/1) ... [2022-07-14 15:58:18,711 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 03:58:18" (1/1) ... [2022-07-14 15:58:18,721 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 03:58:18" (1/1) ... [2022-07-14 15:58:18,731 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 03:58:18" (1/1) ... [2022-07-14 15:58:18,739 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 03:58:18" (1/1) ... [2022-07-14 15:58:18,755 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 03:58:18" (1/1) ... [2022-07-14 15:58:18,757 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 03:58:18" (1/1) ... [2022-07-14 15:58:18,759 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-14 15:58:18,773 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-14 15:58:18,773 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-14 15:58:18,773 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-14 15:58:18,774 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 03:58:18" (1/1) ... [2022-07-14 15:58:18,782 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-14 15:58:18,790 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 15:58:18,799 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-14 15:58:18,804 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2022-07-14 15:58:18,833 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-14 15:58:18,833 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-14 15:58:18,833 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-14 15:58:18,833 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-14 15:58:18,899 INFO L234 CfgBuilder]: Building ICFG [2022-07-14 15:58:18,900 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-14 15:58:19,204 INFO L275 CfgBuilder]: Performing block encoding [2022-07-14 15:58:19,210 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-14 15:58:19,211 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-07-14 15:58:19,212 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.07 03:58:19 BoogieIcfgContainer [2022-07-14 15:58:19,212 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-14 15:58:19,213 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-07-14 15:58:19,213 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-07-14 15:58:19,215 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-07-14 15:58:19,216 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-14 15:58:19,216 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 14.07 03:58:18" (1/3) ... [2022-07-14 15:58:19,217 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@299ae362 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 14.07 03:58:19, skipping insertion in model container [2022-07-14 15:58:19,217 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-14 15:58:19,217 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 03:58:18" (2/3) ... [2022-07-14 15:58:19,217 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@299ae362 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 14.07 03:58:19, skipping insertion in model container [2022-07-14 15:58:19,217 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-14 15:58:19,218 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.07 03:58:19" (3/3) ... [2022-07-14 15:58:19,218 INFO L354 chiAutomizerObserver]: Analyzing ICFG minepump_spec3_product24.cil.c [2022-07-14 15:58:19,256 INFO L255 stractBuchiCegarLoop]: Interprodecural is true [2022-07-14 15:58:19,256 INFO L256 stractBuchiCegarLoop]: Hoare is false [2022-07-14 15:58:19,256 INFO L257 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-07-14 15:58:19,256 INFO L258 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-07-14 15:58:19,256 INFO L259 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-07-14 15:58:19,257 INFO L260 stractBuchiCegarLoop]: Difference is false [2022-07-14 15:58:19,257 INFO L261 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-07-14 15:58:19,257 INFO L265 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2022-07-14 15:58:19,260 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 161 states, 160 states have (on average 1.35) internal successors, (216), 160 states have internal predecessors, (216), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 15:58:19,278 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 105 [2022-07-14 15:58:19,279 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-14 15:58:19,279 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-14 15:58:19,283 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-07-14 15:58:19,284 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 15:58:19,284 INFO L287 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2022-07-14 15:58:19,285 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 161 states, 160 states have (on average 1.35) internal successors, (216), 160 states have internal predecessors, (216), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 15:58:19,290 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 105 [2022-07-14 15:58:19,290 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-14 15:58:19,290 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-14 15:58:19,291 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-07-14 15:58:19,291 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 15:58:19,295 INFO L752 eck$LassoCheckResult]: Stem: 143#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(13, 4);call #Ultimate.allocInit(3, 5);call write~init~int(79, 5, 0, 1);call write~init~int(110, 5, 1, 1);call write~init~int(0, 5, 2, 1);call #Ultimate.allocInit(4, 6);call write~init~int(79, 6, 0, 1);call write~init~int(102, 6, 1, 1);call write~init~int(102, 6, 2, 1);call write~init~int(0, 6, 3, 1);call #Ultimate.allocInit(7, 7);call write~init~int(44, 7, 0, 1);call write~init~int(80, 7, 1, 1);call write~init~int(117, 7, 2, 1);call write~init~int(109, 7, 3, 1);call write~init~int(112, 7, 4, 1);call write~init~int(58, 7, 5, 1);call write~init~int(0, 7, 6, 1);call #Ultimate.allocInit(3, 8);call write~init~int(79, 8, 0, 1);call write~init~int(110, 8, 1, 1);call write~init~int(0, 8, 2, 1);call #Ultimate.allocInit(4, 9);call write~init~int(79, 9, 0, 1);call write~init~int(102, 9, 1, 1);call write~init~int(102, 9, 2, 1);call write~init~int(0, 9, 3, 1);call #Ultimate.allocInit(3, 10);call write~init~int(41, 10, 0, 1);call write~init~int(32, 10, 1, 1);call write~init~int(0, 10, 2, 1);call #Ultimate.allocInit(2, 11);call write~init~int(10, 11, 0, 1);call write~init~int(0, 11, 1, 1);call #Ultimate.allocInit(30, 12);call #Ultimate.allocInit(9, 13);call #Ultimate.allocInit(21, 14);call #Ultimate.allocInit(30, 15);call #Ultimate.allocInit(9, 16);call #Ultimate.allocInit(21, 17);call #Ultimate.allocInit(30, 18);call #Ultimate.allocInit(9, 19);call #Ultimate.allocInit(25, 20);call #Ultimate.allocInit(30, 21);call #Ultimate.allocInit(9, 22);call #Ultimate.allocInit(25, 23);call #Ultimate.allocInit(13, 24);call #Ultimate.allocInit(7, 25);call write~init~int(44, 25, 0, 1);call write~init~int(77, 25, 1, 1);call write~init~int(101, 25, 2, 1);call write~init~int(116, 25, 3, 1);call write~init~int(104, 25, 4, 1);call write~init~int(58, 25, 5, 1);call write~init~int(0, 25, 6, 1);call #Ultimate.allocInit(5, 26);call write~init~int(67, 26, 0, 1);call write~init~int(82, 26, 1, 1);call write~init~int(73, 26, 2, 1);call write~init~int(84, 26, 3, 1);call write~init~int(0, 26, 4, 1);call #Ultimate.allocInit(3, 27);call write~init~int(79, 27, 0, 1);call write~init~int(75, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(41, 28, 0, 1);call write~init~int(0, 28, 1, 1);~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 50#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret23#1, main_~retValue_acc~3#1, main_~tmp~5#1;havoc main_~retValue_acc~3#1;havoc main_~tmp~5#1;assume { :begin_inline_select_helpers } true; 96#L955true assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 7#L948true assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~11#1;havoc valid_product_~retValue_acc~11#1;valid_product_~retValue_acc~11#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~11#1; 125#L963true main_#t~ret23#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~5#1 := main_#t~ret23#1;havoc main_#t~ret23#1; 134#L464true assume 0 != main_~tmp~5#1;assume { :begin_inline_setup } true; 119#L438true assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet16#1, test_#t~nondet17#1, test_#t~nondet18#1, test_#t~nondet19#1, test_~splverifierCounter~0#1, test_~tmp~3#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~3#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 20#L285-2true [2022-07-14 15:58:19,295 INFO L754 eck$LassoCheckResult]: Loop: 20#L285-2true assume !false; 111#L286true assume test_~splverifierCounter~0#1 < 4; 88#L287true test_~tmp~3#1 := test_#t~nondet16#1;havoc test_#t~nondet16#1; 8#L295true assume !(0 != test_~tmp~3#1); 43#L295-2true test_~tmp___0~1#1 := test_#t~nondet17#1;havoc test_#t~nondet17#1; 84#L305true assume !(0 != test_~tmp___0~1#1); 140#L305-2true test_~tmp___2~0#1 := test_#t~nondet18#1;havoc test_#t~nondet18#1; 56#L315true assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 26#L268true assume { :end_inline_startSystem } true; 79#L323-2true assume { :begin_inline_timeShift } true; 30#L78true assume !(0 != ~pumpRunning~0); 57#L78-2true assume !(0 != ~systemActive~0); 70#L85-1true assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret20#1, __utac_acc__Specification3_spec__1_#t~ret21#1, __utac_acc__Specification3_spec__1_#t~ret22#1, __utac_acc__Specification3_spec__1_~tmp~4#1, __utac_acc__Specification3_spec__1_~tmp___0~2#1, __utac_acc__Specification3_spec__1_~tmp___1~1#1;havoc __utac_acc__Specification3_spec__1_~tmp~4#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~2#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~1#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~7#1;havoc isMethaneLevelCritical_~retValue_acc~7#1;isMethaneLevelCritical_~retValue_acc~7#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~7#1; 41#L887-1true __utac_acc__Specification3_spec__1_#t~ret20#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~4#1 := __utac_acc__Specification3_spec__1_#t~ret20#1;havoc __utac_acc__Specification3_spec__1_#t~ret20#1; 77#L354true assume 0 != __utac_acc__Specification3_spec__1_~tmp~4#1; 122#L360-1true assume { :end_inline___utac_acc__Specification3_spec__1 } true; 115#L95true assume { :end_inline_timeShift } true; 20#L285-2true [2022-07-14 15:58:19,300 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 15:58:19,300 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 1 times [2022-07-14 15:58:19,306 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 15:58:19,307 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1819770441] [2022-07-14 15:58:19,307 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 15:58:19,307 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 15:58:19,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-14 15:58:19,428 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-14 15:58:19,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-14 15:58:19,489 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-14 15:58:19,492 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 15:58:19,492 INFO L85 PathProgramCache]: Analyzing trace with hash 1850073299, now seen corresponding path program 1 times [2022-07-14 15:58:19,492 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 15:58:19,493 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [263911418] [2022-07-14 15:58:19,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 15:58:19,494 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 15:58:19,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 15:58:19,558 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 15:58:19,558 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 15:58:19,558 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [263911418] [2022-07-14 15:58:19,559 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [263911418] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 15:58:19,559 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 15:58:19,559 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-14 15:58:19,560 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [820072650] [2022-07-14 15:58:19,561 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 15:58:19,564 INFO L769 eck$LassoCheckResult]: loop already infeasible [2022-07-14 15:58:19,564 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 15:58:19,587 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 15:58:19,590 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 15:58:19,594 INFO L87 Difference]: Start difference. First operand has 161 states, 160 states have (on average 1.35) internal successors, (216), 160 states have internal predecessors, (216), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 15:58:19,652 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 15:58:19,653 INFO L93 Difference]: Finished difference Result 307 states and 399 transitions. [2022-07-14 15:58:19,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 15:58:19,657 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 307 states and 399 transitions. [2022-07-14 15:58:19,663 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 200 [2022-07-14 15:58:19,697 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 307 states to 287 states and 378 transitions. [2022-07-14 15:58:19,698 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 287 [2022-07-14 15:58:19,700 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 287 [2022-07-14 15:58:19,703 INFO L73 IsDeterministic]: Start isDeterministic. Operand 287 states and 378 transitions. [2022-07-14 15:58:19,704 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-14 15:58:19,704 INFO L369 hiAutomatonCegarLoop]: Abstraction has 287 states and 378 transitions. [2022-07-14 15:58:19,728 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 287 states and 378 transitions. [2022-07-14 15:58:19,758 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 287 to 284. [2022-07-14 15:58:19,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 284 states, 284 states have (on average 1.3169014084507042) internal successors, (374), 283 states have internal predecessors, (374), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 15:58:19,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 284 states to 284 states and 374 transitions. [2022-07-14 15:58:19,765 INFO L392 hiAutomatonCegarLoop]: Abstraction has 284 states and 374 transitions. [2022-07-14 15:58:19,766 INFO L374 stractBuchiCegarLoop]: Abstraction has 284 states and 374 transitions. [2022-07-14 15:58:19,774 INFO L287 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2022-07-14 15:58:19,775 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 284 states and 374 transitions. [2022-07-14 15:58:19,777 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 197 [2022-07-14 15:58:19,780 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-14 15:58:19,780 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-14 15:58:19,780 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-07-14 15:58:19,781 INFO L180 hiAutomatonCegarLoop]: 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] [2022-07-14 15:58:19,781 INFO L752 eck$LassoCheckResult]: Stem: 636#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(13, 4);call #Ultimate.allocInit(3, 5);call write~init~int(79, 5, 0, 1);call write~init~int(110, 5, 1, 1);call write~init~int(0, 5, 2, 1);call #Ultimate.allocInit(4, 6);call write~init~int(79, 6, 0, 1);call write~init~int(102, 6, 1, 1);call write~init~int(102, 6, 2, 1);call write~init~int(0, 6, 3, 1);call #Ultimate.allocInit(7, 7);call write~init~int(44, 7, 0, 1);call write~init~int(80, 7, 1, 1);call write~init~int(117, 7, 2, 1);call write~init~int(109, 7, 3, 1);call write~init~int(112, 7, 4, 1);call write~init~int(58, 7, 5, 1);call write~init~int(0, 7, 6, 1);call #Ultimate.allocInit(3, 8);call write~init~int(79, 8, 0, 1);call write~init~int(110, 8, 1, 1);call write~init~int(0, 8, 2, 1);call #Ultimate.allocInit(4, 9);call write~init~int(79, 9, 0, 1);call write~init~int(102, 9, 1, 1);call write~init~int(102, 9, 2, 1);call write~init~int(0, 9, 3, 1);call #Ultimate.allocInit(3, 10);call write~init~int(41, 10, 0, 1);call write~init~int(32, 10, 1, 1);call write~init~int(0, 10, 2, 1);call #Ultimate.allocInit(2, 11);call write~init~int(10, 11, 0, 1);call write~init~int(0, 11, 1, 1);call #Ultimate.allocInit(30, 12);call #Ultimate.allocInit(9, 13);call #Ultimate.allocInit(21, 14);call #Ultimate.allocInit(30, 15);call #Ultimate.allocInit(9, 16);call #Ultimate.allocInit(21, 17);call #Ultimate.allocInit(30, 18);call #Ultimate.allocInit(9, 19);call #Ultimate.allocInit(25, 20);call #Ultimate.allocInit(30, 21);call #Ultimate.allocInit(9, 22);call #Ultimate.allocInit(25, 23);call #Ultimate.allocInit(13, 24);call #Ultimate.allocInit(7, 25);call write~init~int(44, 25, 0, 1);call write~init~int(77, 25, 1, 1);call write~init~int(101, 25, 2, 1);call write~init~int(116, 25, 3, 1);call write~init~int(104, 25, 4, 1);call write~init~int(58, 25, 5, 1);call write~init~int(0, 25, 6, 1);call #Ultimate.allocInit(5, 26);call write~init~int(67, 26, 0, 1);call write~init~int(82, 26, 1, 1);call write~init~int(73, 26, 2, 1);call write~init~int(84, 26, 3, 1);call write~init~int(0, 26, 4, 1);call #Ultimate.allocInit(3, 27);call write~init~int(79, 27, 0, 1);call write~init~int(75, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(41, 28, 0, 1);call write~init~int(0, 28, 1, 1);~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 565#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret23#1, main_~retValue_acc~3#1, main_~tmp~5#1;havoc main_~retValue_acc~3#1;havoc main_~tmp~5#1;assume { :begin_inline_select_helpers } true; 566#L955 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 487#L948 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~11#1;havoc valid_product_~retValue_acc~11#1;valid_product_~retValue_acc~11#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~11#1; 488#L963 main_#t~ret23#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~5#1 := main_#t~ret23#1;havoc main_#t~ret23#1; 627#L464 assume 0 != main_~tmp~5#1;assume { :begin_inline_setup } true; 622#L438 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet16#1, test_#t~nondet17#1, test_#t~nondet18#1, test_#t~nondet19#1, test_~splverifierCounter~0#1, test_~tmp~3#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~3#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 516#L285-2 [2022-07-14 15:58:19,782 INFO L754 eck$LassoCheckResult]: Loop: 516#L285-2 assume !false; 517#L286 assume test_~splverifierCounter~0#1 < 4; 617#L287 test_~tmp~3#1 := test_#t~nondet16#1;havoc test_#t~nondet16#1; 707#L295 assume !(0 != test_~tmp~3#1); 705#L295-2 test_~tmp___0~1#1 := test_#t~nondet17#1;havoc test_#t~nondet17#1; 703#L305 assume !(0 != test_~tmp___0~1#1); 701#L305-2 test_~tmp___2~0#1 := test_#t~nondet18#1;havoc test_#t~nondet18#1; 700#L315 assume !(0 != test_~tmp___2~0#1);test_~tmp___1~0#1 := test_#t~nondet19#1;havoc test_#t~nondet19#1; 484#L323 assume !(0 != test_~tmp___1~0#1); 485#L323-2 assume { :begin_inline_timeShift } true; 532#L78 assume !(0 != ~pumpRunning~0); 533#L78-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret5#1, processEnvironment_~tmp~1#1;havoc processEnvironment_~tmp~1#1; 513#L136 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__lowWaterSensor } true;havoc processEnvironment__wrappee__lowWaterSensor_#t~ret4#1, processEnvironment__wrappee__lowWaterSensor_~tmp~0#1;havoc processEnvironment__wrappee__lowWaterSensor_~tmp~0#1; 514#L110-2 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true; 569#L102-3 assume { :end_inline_processEnvironment__wrappee__base } true; 577#L110-3 assume { :end_inline_processEnvironment__wrappee__lowWaterSensor } true; 714#L136-1 assume { :end_inline_processEnvironment } true; 713#L85-1 assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret20#1, __utac_acc__Specification3_spec__1_#t~ret21#1, __utac_acc__Specification3_spec__1_#t~ret22#1, __utac_acc__Specification3_spec__1_~tmp~4#1, __utac_acc__Specification3_spec__1_~tmp___0~2#1, __utac_acc__Specification3_spec__1_~tmp___1~1#1;havoc __utac_acc__Specification3_spec__1_~tmp~4#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~2#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~1#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~7#1;havoc isMethaneLevelCritical_~retValue_acc~7#1;isMethaneLevelCritical_~retValue_acc~7#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~7#1; 552#L887-1 __utac_acc__Specification3_spec__1_#t~ret20#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~4#1 := __utac_acc__Specification3_spec__1_#t~ret20#1;havoc __utac_acc__Specification3_spec__1_#t~ret20#1; 553#L354 assume 0 != __utac_acc__Specification3_spec__1_~tmp~4#1; 519#L360-1 assume { :end_inline___utac_acc__Specification3_spec__1 } true; 620#L95 assume { :end_inline_timeShift } true; 516#L285-2 [2022-07-14 15:58:19,795 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 15:58:19,795 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 2 times [2022-07-14 15:58:19,795 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 15:58:19,796 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1054667061] [2022-07-14 15:58:19,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 15:58:19,796 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 15:58:19,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-14 15:58:19,807 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-14 15:58:19,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-14 15:58:19,820 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-14 15:58:19,820 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 15:58:19,821 INFO L85 PathProgramCache]: Analyzing trace with hash -1305347534, now seen corresponding path program 1 times [2022-07-14 15:58:19,821 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 15:58:19,821 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [530739641] [2022-07-14 15:58:19,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 15:58:19,822 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 15:58:19,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-14 15:58:19,841 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-14 15:58:19,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-14 15:58:19,855 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-14 15:58:19,856 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 15:58:19,856 INFO L85 PathProgramCache]: Analyzing trace with hash -188504842, now seen corresponding path program 1 times [2022-07-14 15:58:19,857 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 15:58:19,857 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [882787803] [2022-07-14 15:58:19,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 15:58:19,857 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 15:58:19,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 15:58:19,935 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 15:58:19,936 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 15:58:19,936 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [882787803] [2022-07-14 15:58:19,937 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [882787803] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 15:58:19,937 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 15:58:19,937 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-14 15:58:19,937 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [588034164] [2022-07-14 15:58:19,938 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 15:58:20,073 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 15:58:20,073 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-14 15:58:20,073 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-14 15:58:20,074 INFO L87 Difference]: Start difference. First operand 284 states and 374 transitions. cyclomatic complexity: 93 Second operand has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 15:58:20,208 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 15:58:20,208 INFO L93 Difference]: Finished difference Result 1022 states and 1348 transitions. [2022-07-14 15:58:20,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-14 15:58:20,209 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 1022 states and 1348 transitions. [2022-07-14 15:58:20,217 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 744 [2022-07-14 15:58:20,223 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 1022 states to 1022 states and 1348 transitions. [2022-07-14 15:58:20,223 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 1022 [2022-07-14 15:58:20,224 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 1022 [2022-07-14 15:58:20,225 INFO L73 IsDeterministic]: Start isDeterministic. Operand 1022 states and 1348 transitions. [2022-07-14 15:58:20,229 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-14 15:58:20,230 INFO L369 hiAutomatonCegarLoop]: Abstraction has 1022 states and 1348 transitions. [2022-07-14 15:58:20,230 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1022 states and 1348 transitions. [2022-07-14 15:58:20,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1022 to 561. [2022-07-14 15:58:20,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 561 states, 561 states have (on average 1.3065953654188949) internal successors, (733), 560 states have internal predecessors, (733), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 15:58:20,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 561 states to 561 states and 733 transitions. [2022-07-14 15:58:20,254 INFO L392 hiAutomatonCegarLoop]: Abstraction has 561 states and 733 transitions. [2022-07-14 15:58:20,254 INFO L374 stractBuchiCegarLoop]: Abstraction has 561 states and 733 transitions. [2022-07-14 15:58:20,254 INFO L287 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2022-07-14 15:58:20,254 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 561 states and 733 transitions. [2022-07-14 15:58:20,256 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 394 [2022-07-14 15:58:20,256 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-14 15:58:20,257 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-14 15:58:20,259 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-07-14 15:58:20,259 INFO L180 hiAutomatonCegarLoop]: 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, 1, 1] [2022-07-14 15:58:20,259 INFO L752 eck$LassoCheckResult]: Stem: 1972#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(13, 4);call #Ultimate.allocInit(3, 5);call write~init~int(79, 5, 0, 1);call write~init~int(110, 5, 1, 1);call write~init~int(0, 5, 2, 1);call #Ultimate.allocInit(4, 6);call write~init~int(79, 6, 0, 1);call write~init~int(102, 6, 1, 1);call write~init~int(102, 6, 2, 1);call write~init~int(0, 6, 3, 1);call #Ultimate.allocInit(7, 7);call write~init~int(44, 7, 0, 1);call write~init~int(80, 7, 1, 1);call write~init~int(117, 7, 2, 1);call write~init~int(109, 7, 3, 1);call write~init~int(112, 7, 4, 1);call write~init~int(58, 7, 5, 1);call write~init~int(0, 7, 6, 1);call #Ultimate.allocInit(3, 8);call write~init~int(79, 8, 0, 1);call write~init~int(110, 8, 1, 1);call write~init~int(0, 8, 2, 1);call #Ultimate.allocInit(4, 9);call write~init~int(79, 9, 0, 1);call write~init~int(102, 9, 1, 1);call write~init~int(102, 9, 2, 1);call write~init~int(0, 9, 3, 1);call #Ultimate.allocInit(3, 10);call write~init~int(41, 10, 0, 1);call write~init~int(32, 10, 1, 1);call write~init~int(0, 10, 2, 1);call #Ultimate.allocInit(2, 11);call write~init~int(10, 11, 0, 1);call write~init~int(0, 11, 1, 1);call #Ultimate.allocInit(30, 12);call #Ultimate.allocInit(9, 13);call #Ultimate.allocInit(21, 14);call #Ultimate.allocInit(30, 15);call #Ultimate.allocInit(9, 16);call #Ultimate.allocInit(21, 17);call #Ultimate.allocInit(30, 18);call #Ultimate.allocInit(9, 19);call #Ultimate.allocInit(25, 20);call #Ultimate.allocInit(30, 21);call #Ultimate.allocInit(9, 22);call #Ultimate.allocInit(25, 23);call #Ultimate.allocInit(13, 24);call #Ultimate.allocInit(7, 25);call write~init~int(44, 25, 0, 1);call write~init~int(77, 25, 1, 1);call write~init~int(101, 25, 2, 1);call write~init~int(116, 25, 3, 1);call write~init~int(104, 25, 4, 1);call write~init~int(58, 25, 5, 1);call write~init~int(0, 25, 6, 1);call #Ultimate.allocInit(5, 26);call write~init~int(67, 26, 0, 1);call write~init~int(82, 26, 1, 1);call write~init~int(73, 26, 2, 1);call write~init~int(84, 26, 3, 1);call write~init~int(0, 26, 4, 1);call #Ultimate.allocInit(3, 27);call write~init~int(79, 27, 0, 1);call write~init~int(75, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(41, 28, 0, 1);call write~init~int(0, 28, 1, 1);~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 1887#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret23#1, main_~retValue_acc~3#1, main_~tmp~5#1;havoc main_~retValue_acc~3#1;havoc main_~tmp~5#1;assume { :begin_inline_select_helpers } true; 1888#L955 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 1811#L948 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~11#1;havoc valid_product_~retValue_acc~11#1;valid_product_~retValue_acc~11#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~11#1; 1812#L963 main_#t~ret23#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~5#1 := main_#t~ret23#1;havoc main_#t~ret23#1; 1959#L464 assume 0 != main_~tmp~5#1;assume { :begin_inline_setup } true; 1956#L438 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet16#1, test_#t~nondet17#1, test_#t~nondet18#1, test_#t~nondet19#1, test_~splverifierCounter~0#1, test_~tmp~3#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~3#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 1841#L285-2 [2022-07-14 15:58:20,260 INFO L754 eck$LassoCheckResult]: Loop: 1841#L285-2 assume !false; 1842#L286 assume test_~splverifierCounter~0#1 < 4; 1934#L287 test_~tmp~3#1 := test_#t~nondet16#1;havoc test_#t~nondet16#1; 1813#L295 assume !(0 != test_~tmp~3#1); 1815#L295-2 test_~tmp___0~1#1 := test_#t~nondet17#1;havoc test_#t~nondet17#1; 1878#L305 assume !(0 != test_~tmp___0~1#1); 1930#L305-2 test_~tmp___2~0#1 := test_#t~nondet18#1;havoc test_#t~nondet18#1; 1897#L315 assume !(0 != test_~tmp___2~0#1);test_~tmp___1~0#1 := test_#t~nondet19#1;havoc test_#t~nondet19#1; 1898#L323 assume !(0 != test_~tmp___1~0#1); 1853#L323-2 assume { :begin_inline_timeShift } true; 1857#L78 assume !(0 != ~pumpRunning~0); 1858#L78-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret5#1, processEnvironment_~tmp~1#1;havoc processEnvironment_~tmp~1#1; 1899#L136 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__lowWaterSensor } true;havoc processEnvironment__wrappee__lowWaterSensor_#t~ret4#1, processEnvironment__wrappee__lowWaterSensor_~tmp~0#1;havoc processEnvironment__wrappee__lowWaterSensor_~tmp~0#1; 1891#L110-2 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true; 1892#L102-3 assume { :end_inline_processEnvironment__wrappee__base } true; 1901#L110-3 assume { :end_inline_processEnvironment__wrappee__lowWaterSensor } true; 1849#L136-1 assume { :end_inline_processEnvironment } true; 1919#L85-1 assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret20#1, __utac_acc__Specification3_spec__1_#t~ret21#1, __utac_acc__Specification3_spec__1_#t~ret22#1, __utac_acc__Specification3_spec__1_~tmp~4#1, __utac_acc__Specification3_spec__1_~tmp___0~2#1, __utac_acc__Specification3_spec__1_~tmp___1~1#1;havoc __utac_acc__Specification3_spec__1_~tmp~4#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~2#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~1#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~7#1;havoc isMethaneLevelCritical_~retValue_acc~7#1;isMethaneLevelCritical_~retValue_acc~7#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~7#1; 1920#L887-1 __utac_acc__Specification3_spec__1_#t~ret20#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~4#1 := __utac_acc__Specification3_spec__1_#t~ret20#1;havoc __utac_acc__Specification3_spec__1_#t~ret20#1; 1924#L354 assume !(0 != __utac_acc__Specification3_spec__1_~tmp~4#1);assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~8#1;havoc getWaterLevel_~retValue_acc~8#1;getWaterLevel_~retValue_acc~8#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~8#1; 1925#L919 __utac_acc__Specification3_spec__1_#t~ret21#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification3_spec__1_~tmp___0~2#1 := __utac_acc__Specification3_spec__1_#t~ret21#1;havoc __utac_acc__Specification3_spec__1_#t~ret21#1; 1843#L360 assume !(2 == __utac_acc__Specification3_spec__1_~tmp___0~2#1); 1844#L360-1 assume { :end_inline___utac_acc__Specification3_spec__1 } true; 1952#L95 assume { :end_inline_timeShift } true; 1841#L285-2 [2022-07-14 15:58:20,260 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 15:58:20,260 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 3 times [2022-07-14 15:58:20,260 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 15:58:20,261 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [358489142] [2022-07-14 15:58:20,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 15:58:20,261 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 15:58:20,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-14 15:58:20,277 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-14 15:58:20,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-14 15:58:20,296 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-14 15:58:20,297 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 15:58:20,297 INFO L85 PathProgramCache]: Analyzing trace with hash -307276379, now seen corresponding path program 1 times [2022-07-14 15:58:20,297 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 15:58:20,297 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1470269086] [2022-07-14 15:58:20,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 15:58:20,298 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 15:58:20,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-14 15:58:20,302 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-14 15:58:20,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-14 15:58:20,310 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-14 15:58:20,313 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 15:58:20,313 INFO L85 PathProgramCache]: Analyzing trace with hash -763273367, now seen corresponding path program 1 times [2022-07-14 15:58:20,313 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 15:58:20,315 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [718606255] [2022-07-14 15:58:20,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 15:58:20,315 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 15:58:20,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-14 15:58:20,328 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-14 15:58:20,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-14 15:58:20,347 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-14 15:58:22,623 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 14.07 03:58:22 BoogieIcfgContainer [2022-07-14 15:58:22,623 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-07-14 15:58:22,624 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-14 15:58:22,624 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-14 15:58:22,624 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-14 15:58:22,625 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.07 03:58:19" (3/4) ... [2022-07-14 15:58:22,626 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2022-07-14 15:58:22,657 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-07-14 15:58:22,659 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-14 15:58:22,660 INFO L158 Benchmark]: Toolchain (without parser) took 4386.41ms. Allocated memory was 134.2MB in the beginning and 186.6MB in the end (delta: 52.4MB). Free memory was 96.8MB in the beginning and 122.9MB in the end (delta: -26.1MB). Peak memory consumption was 24.6MB. Max. memory is 16.1GB. [2022-07-14 15:58:22,661 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 134.2MB. Free memory was 104.7MB in the beginning and 104.7MB in the end (delta: 25.4kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-14 15:58:22,661 INFO L158 Benchmark]: CACSL2BoogieTranslator took 357.34ms. Allocated memory is still 134.2MB. Free memory was 96.4MB in the beginning and 99.9MB in the end (delta: -3.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-07-14 15:58:22,661 INFO L158 Benchmark]: Boogie Procedure Inliner took 64.45ms. Allocated memory is still 134.2MB. Free memory was 99.9MB in the beginning and 96.6MB in the end (delta: 3.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-07-14 15:58:22,662 INFO L158 Benchmark]: Boogie Preprocessor took 73.36ms. Allocated memory is still 134.2MB. Free memory was 96.6MB in the beginning and 94.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-14 15:58:22,662 INFO L158 Benchmark]: RCFGBuilder took 439.80ms. Allocated memory is still 134.2MB. Free memory was 94.5MB in the beginning and 72.7MB in the end (delta: 21.8MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2022-07-14 15:58:22,663 INFO L158 Benchmark]: BuchiAutomizer took 3410.32ms. Allocated memory was 134.2MB in the beginning and 186.6MB in the end (delta: 52.4MB). Free memory was 72.7MB in the beginning and 125.9MB in the end (delta: -53.2MB). Peak memory consumption was 80.1MB. Max. memory is 16.1GB. [2022-07-14 15:58:22,663 INFO L158 Benchmark]: Witness Printer took 35.46ms. Allocated memory is still 186.6MB. Free memory was 125.9MB in the beginning and 122.9MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-14 15:58:22,665 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 134.2MB. Free memory was 104.7MB in the beginning and 104.7MB in the end (delta: 25.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 357.34ms. Allocated memory is still 134.2MB. Free memory was 96.4MB in the beginning and 99.9MB in the end (delta: -3.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 64.45ms. Allocated memory is still 134.2MB. Free memory was 99.9MB in the beginning and 96.6MB in the end (delta: 3.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 73.36ms. Allocated memory is still 134.2MB. Free memory was 96.6MB in the beginning and 94.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 439.80ms. Allocated memory is still 134.2MB. Free memory was 94.5MB in the beginning and 72.7MB in the end (delta: 21.8MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * BuchiAutomizer took 3410.32ms. Allocated memory was 134.2MB in the beginning and 186.6MB in the end (delta: 52.4MB). Free memory was 72.7MB in the beginning and 125.9MB in the end (delta: -53.2MB). Peak memory consumption was 80.1MB. Max. memory is 16.1GB. * Witness Printer took 35.46ms. Allocated memory is still 186.6MB. Free memory was 125.9MB in the beginning and 122.9MB in the end (delta: 3.1MB). 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 561 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 3.3s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 2.9s. 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, 464 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 921 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 921 mSDsluCounter, 1604 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1097 mSDsCounter, 24 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 93 IncrementalHoareTripleChecker+Invalid, 117 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 24 mSolverCounterUnsat, 507 mSDtfsCounter, 93 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 InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 285]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=1} State at position 1 is {splverifierCounter=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@14857d32=0, NULL=0, head=0, tmp___0=0, pumpRunning=0, retValue_acc=0, NULL=1, retValue_acc=1, methaneLevelCritical=0, retValue_acc=0, retValue_acc=1, tmp___0=1, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2eb91f85=0, tmp=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@41174427=0, \result=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1a42db21=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@18b83f17=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5f19ae9a=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@38c32a25=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7b857efd=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@68802e76=0, tmp___2=0, tmp___1=0, cleanupTimeShifts=4, tmp=0, tmp=1, \result=0, tmp=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6912835a=0, head=0, \result=1, tmp___1=0, NULL=0, waterLevel=1, systemActive=1, tmp=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 285]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L70] int pumpRunning = 0; [L71] int systemActive = 1; [L379] int cleanupTimeShifts = 4; [L647] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L844] int waterLevel = 1; [L845] int methaneLevelCritical = 0; [L455] int retValue_acc ; [L456] int tmp ; [L460] FCALL select_helpers() [L461] FCALL select_features() [L462] CALL, EXPR valid_product() [L959] int retValue_acc ; [L962] retValue_acc = 1 [L963] return (retValue_acc); [L462] RET, EXPR valid_product() [L462] tmp = valid_product() [L464] COND TRUE \read(tmp) [L466] FCALL setup() [L467] CALL runTest() [L446] CALL test() [L276] int splverifierCounter ; [L277] int tmp ; [L278] int tmp___0 ; [L279] int tmp___1 ; [L280] int tmp___2 ; [L283] splverifierCounter = 0 Loop: [L285] COND TRUE 1 [L287] COND TRUE splverifierCounter < 4 [L293] tmp = __VERIFIER_nondet_int() [L295] COND FALSE !(\read(tmp)) [L303] tmp___0 = __VERIFIER_nondet_int() [L305] COND FALSE !(\read(tmp___0)) [L313] tmp___2 = __VERIFIER_nondet_int() [L315] COND FALSE !(\read(tmp___2)) [L321] tmp___1 = __VERIFIER_nondet_int() [L323] COND FALSE !(\read(tmp___1)) [L332] CALL timeShift() [L78] COND FALSE !(\read(pumpRunning)) [L85] COND TRUE \read(systemActive) [L87] CALL processEnvironment() [L133] int tmp ; [L136] COND FALSE !(\read(pumpRunning)) [L151] CALL processEnvironment__wrappee__lowWaterSensor() [L107] int tmp ; [L110] COND FALSE !(\read(pumpRunning)) [L125] FCALL processEnvironment__wrappee__base() [L151] RET processEnvironment__wrappee__lowWaterSensor() [L87] RET processEnvironment() [L93] CALL __utac_acc__Specification3_spec__1() [L346] int tmp ; [L347] int tmp___0 ; [L348] int tmp___1 ; [L352] CALL, EXPR isMethaneLevelCritical() [L883] int retValue_acc ; [L886] retValue_acc = methaneLevelCritical [L887] return (retValue_acc); [L352] RET, EXPR isMethaneLevelCritical() [L352] tmp = isMethaneLevelCritical() [L354] COND FALSE !(\read(tmp)) [L358] CALL, EXPR getWaterLevel() [L915] int retValue_acc ; [L918] retValue_acc = waterLevel [L919] return (retValue_acc); [L358] RET, EXPR getWaterLevel() [L358] tmp___0 = getWaterLevel() [L360] COND FALSE !(tmp___0 == 2) [L93] RET __utac_acc__Specification3_spec__1() [L332] RET timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2022-07-14 15:58:22,697 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)