./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/minepump_spec5_product60.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_spec5_product60.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 b57a794fa6b429f14911ed2b6a28ecb30bf580e5cb37ae05e7120c2d485c2d18 --- Real Ultimate output --- This is Ultimate 0.2.2-?-f4b24e3 [2022-07-14 16:00:04,083 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-14 16:00:04,085 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-14 16:00:04,128 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-14 16:00:04,129 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-14 16:00:04,130 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-14 16:00:04,131 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-14 16:00:04,135 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-14 16:00:04,139 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-14 16:00:04,139 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-14 16:00:04,140 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-14 16:00:04,141 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-14 16:00:04,141 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-14 16:00:04,142 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-14 16:00:04,143 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-14 16:00:04,143 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-14 16:00:04,144 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-14 16:00:04,145 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-14 16:00:04,147 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-14 16:00:04,149 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-14 16:00:04,152 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-14 16:00:04,155 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-14 16:00:04,156 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-14 16:00:04,158 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-14 16:00:04,158 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-14 16:00:04,161 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-14 16:00:04,163 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-14 16:00:04,164 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-14 16:00:04,164 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-14 16:00:04,165 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-14 16:00:04,165 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-14 16:00:04,166 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-14 16:00:04,167 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-14 16:00:04,167 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-14 16:00:04,168 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-14 16:00:04,169 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-14 16:00:04,169 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-14 16:00:04,170 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-14 16:00:04,170 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-14 16:00:04,170 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-14 16:00:04,170 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-14 16:00:04,171 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-14 16:00:04,173 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2022-07-14 16:00:04,202 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-14 16:00:04,203 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-14 16:00:04,203 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-14 16:00:04,203 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-14 16:00:04,204 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-14 16:00:04,205 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-14 16:00:04,205 INFO L138 SettingsManager]: * Use SBE=true [2022-07-14 16:00:04,205 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-07-14 16:00:04,205 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-07-14 16:00:04,206 INFO L138 SettingsManager]: * Use old map elimination=false [2022-07-14 16:00:04,206 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-07-14 16:00:04,206 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-07-14 16:00:04,206 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-07-14 16:00:04,206 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-14 16:00:04,206 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-14 16:00:04,207 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-07-14 16:00:04,207 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-14 16:00:04,207 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-14 16:00:04,207 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-14 16:00:04,207 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-07-14 16:00:04,207 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-07-14 16:00:04,208 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-07-14 16:00:04,208 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-14 16:00:04,208 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-14 16:00:04,208 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-07-14 16:00:04,208 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-14 16:00:04,208 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-07-14 16:00:04,208 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-14 16:00:04,209 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-14 16:00:04,209 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-14 16:00:04,209 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-14 16:00:04,210 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-07-14 16:00:04,210 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b57a794fa6b429f14911ed2b6a28ecb30bf580e5cb37ae05e7120c2d485c2d18 [2022-07-14 16:00:04,410 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-14 16:00:04,427 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-14 16:00:04,429 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-14 16:00:04,430 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-14 16:00:04,431 INFO L275 PluginConnector]: CDTParser initialized [2022-07-14 16:00:04,432 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec5_product60.cil.c [2022-07-14 16:00:04,482 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/33500ecac/a2a079577d654dec992ad9355896dfc8/FLAG3a0bbd2bd [2022-07-14 16:00:04,805 INFO L306 CDTParser]: Found 1 translation units. [2022-07-14 16:00:04,805 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec5_product60.cil.c [2022-07-14 16:00:04,815 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/33500ecac/a2a079577d654dec992ad9355896dfc8/FLAG3a0bbd2bd [2022-07-14 16:00:05,213 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/33500ecac/a2a079577d654dec992ad9355896dfc8 [2022-07-14 16:00:05,215 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-14 16:00:05,216 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-14 16:00:05,219 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-14 16:00:05,219 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-14 16:00:05,224 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-14 16:00:05,225 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.07 04:00:05" (1/1) ... [2022-07-14 16:00:05,225 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@71270854 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 04:00:05, skipping insertion in model container [2022-07-14 16:00:05,226 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.07 04:00:05" (1/1) ... [2022-07-14 16:00:05,230 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-14 16:00:05,258 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-14 16:00:05,474 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_product60.cil.c[18075,18088] [2022-07-14 16:00:05,478 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-14 16:00:05,487 INFO L203 MainTranslator]: Completed pre-run [2022-07-14 16:00:05,529 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_product60.cil.c[18075,18088] [2022-07-14 16:00:05,535 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-14 16:00:05,555 INFO L208 MainTranslator]: Completed translation [2022-07-14 16:00:05,556 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 04:00:05 WrapperNode [2022-07-14 16:00:05,556 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-14 16:00:05,557 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-14 16:00:05,557 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-14 16:00:05,557 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-14 16:00:05,563 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 04:00:05" (1/1) ... [2022-07-14 16:00:05,574 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 04:00:05" (1/1) ... [2022-07-14 16:00:05,611 INFO L137 Inliner]: procedures = 60, calls = 162, calls flagged for inlining = 59, calls inlined = 105, statements flattened = 775 [2022-07-14 16:00:05,612 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-14 16:00:05,612 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-14 16:00:05,612 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-14 16:00:05,612 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-14 16:00:05,618 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 04:00:05" (1/1) ... [2022-07-14 16:00:05,619 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 04:00:05" (1/1) ... [2022-07-14 16:00:05,621 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 04:00:05" (1/1) ... [2022-07-14 16:00:05,622 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 04:00:05" (1/1) ... [2022-07-14 16:00:05,628 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 04:00:05" (1/1) ... [2022-07-14 16:00:05,633 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 04:00:05" (1/1) ... [2022-07-14 16:00:05,635 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 04:00:05" (1/1) ... [2022-07-14 16:00:05,645 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-14 16:00:05,646 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-14 16:00:05,646 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-14 16:00:05,646 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-14 16:00:05,647 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 04:00:05" (1/1) ... [2022-07-14 16:00:05,651 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-14 16:00:05,660 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 16:00:05,670 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 16:00:05,671 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 16:00:05,694 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-14 16:00:05,694 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-14 16:00:05,694 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-14 16:00:05,694 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-14 16:00:05,744 INFO L234 CfgBuilder]: Building ICFG [2022-07-14 16:00:05,745 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-14 16:00:06,147 INFO L275 CfgBuilder]: Performing block encoding [2022-07-14 16:00:06,153 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-14 16:00:06,153 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-07-14 16:00:06,155 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.07 04:00:06 BoogieIcfgContainer [2022-07-14 16:00:06,155 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-14 16:00:06,156 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-07-14 16:00:06,156 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-07-14 16:00:06,159 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-07-14 16:00:06,159 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-14 16:00:06,162 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 14.07 04:00:05" (1/3) ... [2022-07-14 16:00:06,163 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@39e99da8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 14.07 04:00:06, skipping insertion in model container [2022-07-14 16:00:06,163 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-14 16:00:06,164 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 04:00:05" (2/3) ... [2022-07-14 16:00:06,164 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@39e99da8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 14.07 04:00:06, skipping insertion in model container [2022-07-14 16:00:06,164 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-14 16:00:06,164 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.07 04:00:06" (3/3) ... [2022-07-14 16:00:06,165 INFO L354 chiAutomizerObserver]: Analyzing ICFG minepump_spec5_product60.cil.c [2022-07-14 16:00:06,209 INFO L255 stractBuchiCegarLoop]: Interprodecural is true [2022-07-14 16:00:06,209 INFO L256 stractBuchiCegarLoop]: Hoare is false [2022-07-14 16:00:06,209 INFO L257 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-07-14 16:00:06,209 INFO L258 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-07-14 16:00:06,209 INFO L259 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-07-14 16:00:06,209 INFO L260 stractBuchiCegarLoop]: Difference is false [2022-07-14 16:00:06,209 INFO L261 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-07-14 16:00:06,209 INFO L265 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2022-07-14 16:00:06,214 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 201 states, 200 states have (on average 1.355) internal successors, (271), 200 states have internal predecessors, (271), 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 16:00:06,236 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 131 [2022-07-14 16:00:06,237 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-14 16:00:06,237 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-14 16:00:06,243 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 16:00:06,243 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] [2022-07-14 16:00:06,244 INFO L287 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2022-07-14 16:00:06,244 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 201 states, 200 states have (on average 1.355) internal successors, (271), 200 states have internal predecessors, (271), 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 16:00:06,249 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 131 [2022-07-14 16:00:06,249 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-14 16:00:06,249 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-14 16:00:06,250 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 16:00:06,250 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] [2022-07-14 16:00:06,253 INFO L752 eck$LassoCheckResult]: Stem: 191#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;~switchedOnBeforeTS~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 132#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret48#1, main_~retValue_acc~7#1, main_~tmp~10#1;havoc main_~retValue_acc~7#1;havoc main_~tmp~10#1;assume { :begin_inline_select_helpers } true; 188#L916true assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 37#L909true 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; 165#L924true main_#t~ret48#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~10#1 := main_#t~ret48#1;havoc main_#t~ret48#1; 128#L880true assume 0 != main_~tmp~10#1;assume { :begin_inline_setup } true; 25#L853true assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0; 107#L385true assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet18#1, test_#t~nondet19#1, test_#t~nondet20#1, test_#t~nondet21#1, test_~splverifierCounter~0#1, test_~tmp~5#1, test_~tmp___0~2#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~5#1;havoc test_~tmp___0~2#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 87#L318-2true [2022-07-14 16:00:06,254 INFO L754 eck$LassoCheckResult]: Loop: 87#L318-2true assume !false; 200#L319true assume test_~splverifierCounter~0#1 < 4; 52#L320true test_~tmp~5#1 := test_#t~nondet18#1;havoc test_#t~nondet18#1; 175#L328true assume !(0 != test_~tmp~5#1); 42#L328-2true test_~tmp___0~2#1 := test_#t~nondet19#1;havoc test_#t~nondet19#1; 34#L338true assume !(0 != test_~tmp___0~2#1); 46#L338-2true test_~tmp___2~0#1 := test_#t~nondet20#1;havoc test_#t~nondet20#1; 183#L348true assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 60#L301true assume { :end_inline_startSystem } true; 57#L356-2true assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret22#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; 19#L203true __utac_acc__Specification5_spec__2_#t~ret22#1 := isPumpRunning_#res#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret22#1;havoc __utac_acc__Specification5_spec__2_#t~ret22#1; 164#L395true assume { :end_inline___utac_acc__Specification5_spec__2 } true; 153#L74true assume !(0 != ~pumpRunning~0); 72#L74-2true assume !(0 != ~systemActive~0); 3#L81-1true assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret23#1, __utac_acc__Specification5_spec__3_#t~ret24#1, __utac_acc__Specification5_spec__3_~tmp~6#1, __utac_acc__Specification5_spec__3_~tmp___0~3#1;havoc __utac_acc__Specification5_spec__3_~tmp~6#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~3#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~11#1;havoc getWaterLevel_~retValue_acc~11#1;getWaterLevel_~retValue_acc~11#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~11#1; 94#L1013true __utac_acc__Specification5_spec__3_#t~ret23#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~6#1 := __utac_acc__Specification5_spec__3_#t~ret23#1;havoc __utac_acc__Specification5_spec__3_#t~ret23#1; 131#L406true assume !(2 != __utac_acc__Specification5_spec__3_~tmp~6#1); 79#L406-1true assume { :end_inline___utac_acc__Specification5_spec__3 } true; 118#L91true assume { :end_inline_timeShift } true; 87#L318-2true [2022-07-14 16:00:06,258 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 16:00:06,258 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 1 times [2022-07-14 16:00:06,264 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 16:00:06,265 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [220590443] [2022-07-14 16:00:06,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 16:00:06,265 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 16:00:06,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-14 16:00:06,345 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-14 16:00:06,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-14 16:00:06,410 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-14 16:00:06,412 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 16:00:06,412 INFO L85 PathProgramCache]: Analyzing trace with hash 548409291, now seen corresponding path program 1 times [2022-07-14 16:00:06,412 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 16:00:06,412 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [802141178] [2022-07-14 16:00:06,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 16:00:06,412 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 16:00:06,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 16:00:06,460 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 16:00:06,461 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 16:00:06,461 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [802141178] [2022-07-14 16:00:06,462 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [802141178] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 16:00:06,462 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 16:00:06,462 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-14 16:00:06,463 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [162976716] [2022-07-14 16:00:06,464 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 16:00:06,468 INFO L769 eck$LassoCheckResult]: loop already infeasible [2022-07-14 16:00:06,469 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 16:00:06,492 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 16:00:06,493 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 16:00:06,494 INFO L87 Difference]: Start difference. First operand has 201 states, 200 states have (on average 1.355) internal successors, (271), 200 states have internal predecessors, (271), 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) [2022-07-14 16:00:06,547 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 16:00:06,547 INFO L93 Difference]: Finished difference Result 386 states and 508 transitions. [2022-07-14 16:00:06,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 16:00:06,552 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 386 states and 508 transitions. [2022-07-14 16:00:06,558 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 252 [2022-07-14 16:00:06,564 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 386 states to 366 states and 487 transitions. [2022-07-14 16:00:06,567 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 366 [2022-07-14 16:00:06,568 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 366 [2022-07-14 16:00:06,569 INFO L73 IsDeterministic]: Start isDeterministic. Operand 366 states and 487 transitions. [2022-07-14 16:00:06,570 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-14 16:00:06,570 INFO L369 hiAutomatonCegarLoop]: Abstraction has 366 states and 487 transitions. [2022-07-14 16:00:06,583 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 366 states and 487 transitions. [2022-07-14 16:00:06,600 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 366 to 363. [2022-07-14 16:00:06,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 363 states, 363 states have (on average 1.3305785123966942) internal successors, (483), 362 states have internal predecessors, (483), 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 16:00:06,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 363 states to 363 states and 483 transitions. [2022-07-14 16:00:06,603 INFO L392 hiAutomatonCegarLoop]: Abstraction has 363 states and 483 transitions. [2022-07-14 16:00:06,603 INFO L374 stractBuchiCegarLoop]: Abstraction has 363 states and 483 transitions. [2022-07-14 16:00:06,604 INFO L287 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2022-07-14 16:00:06,604 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 363 states and 483 transitions. [2022-07-14 16:00:06,606 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 249 [2022-07-14 16:00:06,607 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-14 16:00:06,607 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-14 16:00:06,607 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 16:00:06,608 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 16:00:06,608 INFO L752 eck$LassoCheckResult]: Stem: 816#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;~switchedOnBeforeTS~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 701#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret48#1, main_~retValue_acc~7#1, main_~tmp~10#1;havoc main_~retValue_acc~7#1;havoc main_~tmp~10#1;assume { :begin_inline_select_helpers } true; 702#L916 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 724#L909 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; 725#L924 main_#t~ret48#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~10#1 := main_#t~ret48#1;havoc main_#t~ret48#1; 690#L880 assume 0 != main_~tmp~10#1;assume { :begin_inline_setup } true; 691#L853 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0; 633#L385 assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet18#1, test_#t~nondet19#1, test_#t~nondet20#1, test_#t~nondet21#1, test_~splverifierCounter~0#1, test_~tmp~5#1, test_~tmp___0~2#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~5#1;havoc test_~tmp___0~2#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 634#L318-2 [2022-07-14 16:00:06,608 INFO L754 eck$LassoCheckResult]: Loop: 634#L318-2 assume !false; 834#L319 assume test_~splverifierCounter~0#1 < 4; 835#L320 test_~tmp~5#1 := test_#t~nondet18#1;havoc test_#t~nondet18#1; 792#L328 assume !(0 != test_~tmp~5#1); 748#L328-2 test_~tmp___0~2#1 := test_#t~nondet19#1;havoc test_#t~nondet19#1; 719#L338 assume !(0 != test_~tmp___0~2#1); 720#L338-2 test_~tmp___2~0#1 := test_#t~nondet20#1;havoc test_#t~nondet20#1; 759#L348 assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 784#L301 assume { :end_inline_startSystem } true; 785#L356-2 assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret22#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; 846#L203 __utac_acc__Specification5_spec__2_#t~ret22#1 := isPumpRunning_#res#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret22#1;havoc __utac_acc__Specification5_spec__2_#t~ret22#1; 844#L395 assume { :end_inline___utac_acc__Specification5_spec__2 } true; 843#L74 assume !(0 != ~pumpRunning~0); 804#L74-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret5#1, processEnvironment_~tmp~1#1;havoc processEnvironment_~tmp~1#1; 805#L132 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret4#1, processEnvironment__wrappee__highWaterSensor_~tmp~0#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~0#1; 715#L106-2 assume !(0 == ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true; 716#L98-3 assume { :end_inline_processEnvironment__wrappee__base } true; 842#L106-3 assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 825#L132-1 assume { :end_inline_processEnvironment } true; 605#L81-1 assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret23#1, __utac_acc__Specification5_spec__3_#t~ret24#1, __utac_acc__Specification5_spec__3_~tmp~6#1, __utac_acc__Specification5_spec__3_~tmp___0~3#1;havoc __utac_acc__Specification5_spec__3_~tmp~6#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~3#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~11#1;havoc getWaterLevel_~retValue_acc~11#1;getWaterLevel_~retValue_acc~11#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~11#1; 606#L1013 __utac_acc__Specification5_spec__3_#t~ret23#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~6#1 := __utac_acc__Specification5_spec__3_#t~ret23#1;havoc __utac_acc__Specification5_spec__3_#t~ret23#1; 698#L406 assume !(2 != __utac_acc__Specification5_spec__3_~tmp~6#1); 700#L406-1 assume { :end_inline___utac_acc__Specification5_spec__3 } true; 836#L91 assume { :end_inline_timeShift } true; 634#L318-2 [2022-07-14 16:00:06,608 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 16:00:06,608 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 2 times [2022-07-14 16:00:06,609 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 16:00:06,609 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1851097624] [2022-07-14 16:00:06,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 16:00:06,609 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 16:00:06,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-14 16:00:06,644 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-14 16:00:06,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-14 16:00:06,684 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-14 16:00:06,687 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 16:00:06,687 INFO L85 PathProgramCache]: Analyzing trace with hash -649089561, now seen corresponding path program 1 times [2022-07-14 16:00:06,687 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 16:00:06,688 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2025272865] [2022-07-14 16:00:06,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 16:00:06,690 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 16:00:06,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 16:00:06,704 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 16:00:06,705 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 16:00:06,705 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2025272865] [2022-07-14 16:00:06,705 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2025272865] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 16:00:06,705 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 16:00:06,706 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-14 16:00:06,706 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1837972904] [2022-07-14 16:00:06,706 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 16:00:06,706 INFO L769 eck$LassoCheckResult]: loop already infeasible [2022-07-14 16:00:06,707 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 16:00:06,707 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 16:00:06,707 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 16:00:06,707 INFO L87 Difference]: Start difference. First operand 363 states and 483 transitions. cyclomatic complexity: 123 Second operand has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 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 16:00:06,803 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 16:00:06,804 INFO L93 Difference]: Finished difference Result 505 states and 648 transitions. [2022-07-14 16:00:06,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 16:00:06,805 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 505 states and 648 transitions. [2022-07-14 16:00:06,809 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 355 [2022-07-14 16:00:06,812 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 505 states to 505 states and 648 transitions. [2022-07-14 16:00:06,813 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 505 [2022-07-14 16:00:06,814 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 505 [2022-07-14 16:00:06,814 INFO L73 IsDeterministic]: Start isDeterministic. Operand 505 states and 648 transitions. [2022-07-14 16:00:06,818 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-14 16:00:06,818 INFO L369 hiAutomatonCegarLoop]: Abstraction has 505 states and 648 transitions. [2022-07-14 16:00:06,819 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 505 states and 648 transitions. [2022-07-14 16:00:06,841 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 505 to 505. [2022-07-14 16:00:06,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 505 states, 505 states have (on average 1.2831683168316832) internal successors, (648), 504 states have internal predecessors, (648), 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 16:00:06,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 505 states to 505 states and 648 transitions. [2022-07-14 16:00:06,845 INFO L392 hiAutomatonCegarLoop]: Abstraction has 505 states and 648 transitions. [2022-07-14 16:00:06,845 INFO L374 stractBuchiCegarLoop]: Abstraction has 505 states and 648 transitions. [2022-07-14 16:00:06,847 INFO L287 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2022-07-14 16:00:06,847 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 505 states and 648 transitions. [2022-07-14 16:00:06,849 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 355 [2022-07-14 16:00:06,850 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-14 16:00:06,850 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-14 16:00:06,851 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 16:00:06,851 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, 1, 1, 1, 1, 1, 1] [2022-07-14 16:00:06,852 INFO L752 eck$LassoCheckResult]: Stem: 1686#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;~switchedOnBeforeTS~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 1576#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret48#1, main_~retValue_acc~7#1, main_~tmp~10#1;havoc main_~retValue_acc~7#1;havoc main_~tmp~10#1;assume { :begin_inline_select_helpers } true; 1577#L916 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 1600#L909 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; 1601#L924 main_#t~ret48#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~10#1 := main_#t~ret48#1;havoc main_#t~ret48#1; 1565#L880 assume 0 != main_~tmp~10#1;assume { :begin_inline_setup } true; 1566#L853 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0; 1508#L385 assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet18#1, test_#t~nondet19#1, test_#t~nondet20#1, test_#t~nondet21#1, test_~splverifierCounter~0#1, test_~tmp~5#1, test_~tmp___0~2#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~5#1;havoc test_~tmp___0~2#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 1509#L318-2 [2022-07-14 16:00:06,852 INFO L754 eck$LassoCheckResult]: Loop: 1509#L318-2 assume !false; 1956#L319 assume test_~splverifierCounter~0#1 < 4; 1955#L320 test_~tmp~5#1 := test_#t~nondet18#1;havoc test_#t~nondet18#1; 1953#L328 assume !(0 != test_~tmp~5#1); 1950#L328-2 test_~tmp___0~2#1 := test_#t~nondet19#1;havoc test_#t~nondet19#1; 1947#L338 assume !(0 != test_~tmp___0~2#1); 1945#L338-2 test_~tmp___2~0#1 := test_#t~nondet20#1;havoc test_#t~nondet20#1; 1944#L348 assume !(0 != test_~tmp___2~0#1);test_~tmp___1~0#1 := test_#t~nondet21#1;havoc test_#t~nondet21#1; 1943#L356 assume !(0 != test_~tmp___1~0#1); 1659#L356-2 assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret22#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; 1942#L203 __utac_acc__Specification5_spec__2_#t~ret22#1 := isPumpRunning_#res#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret22#1;havoc __utac_acc__Specification5_spec__2_#t~ret22#1; 1796#L395 assume { :end_inline___utac_acc__Specification5_spec__2 } true; 1795#L74 assume !(0 != ~pumpRunning~0); 1750#L74-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret5#1, processEnvironment_~tmp~1#1;havoc processEnvironment_~tmp~1#1; 1790#L132 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret4#1, processEnvironment__wrappee__highWaterSensor_~tmp~0#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~0#1; 1787#L106-2 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret16#1, isHighWaterLevel_~retValue_acc~2#1, isHighWaterLevel_~tmp~3#1, isHighWaterLevel_~tmp___0~0#1;havoc isHighWaterLevel_~retValue_acc~2#1;havoc isHighWaterLevel_~tmp~3#1;havoc isHighWaterLevel_~tmp___0~0#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~12#1;havoc isHighWaterSensorDry_~retValue_acc~12#1; 1785#L1021-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~12#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~12#1; 1783#L1026-1 isHighWaterLevel_#t~ret16#1 := isHighWaterSensorDry_#res#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~3#1 := isHighWaterLevel_#t~ret16#1;havoc isHighWaterLevel_#t~ret16#1; 1781#L252-3 assume 0 != isHighWaterLevel_~tmp~3#1;isHighWaterLevel_~tmp___0~0#1 := 0; 1779#L252-5 isHighWaterLevel_~retValue_acc~2#1 := isHighWaterLevel_~tmp___0~0#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~2#1; 1777#L258-1 processEnvironment__wrappee__highWaterSensor_#t~ret4#1 := isHighWaterLevel_#res#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~0#1 := processEnvironment__wrappee__highWaterSensor_#t~ret4#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret4#1; 1774#L110-3 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~0#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 1775#L98-2 assume { :end_inline_processEnvironment__wrappee__base } true; 1968#L106-3 assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 1966#L132-1 assume { :end_inline_processEnvironment } true; 1965#L81-1 assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret23#1, __utac_acc__Specification5_spec__3_#t~ret24#1, __utac_acc__Specification5_spec__3_~tmp~6#1, __utac_acc__Specification5_spec__3_~tmp___0~3#1;havoc __utac_acc__Specification5_spec__3_~tmp~6#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~3#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~11#1;havoc getWaterLevel_~retValue_acc~11#1;getWaterLevel_~retValue_acc~11#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~11#1; 1964#L1013 __utac_acc__Specification5_spec__3_#t~ret23#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~6#1 := __utac_acc__Specification5_spec__3_#t~ret23#1;havoc __utac_acc__Specification5_spec__3_#t~ret23#1; 1962#L406 assume !(2 != __utac_acc__Specification5_spec__3_~tmp~6#1); 1959#L406-1 assume { :end_inline___utac_acc__Specification5_spec__3 } true; 1958#L91 assume { :end_inline_timeShift } true; 1509#L318-2 [2022-07-14 16:00:06,852 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 16:00:06,853 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 3 times [2022-07-14 16:00:06,853 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 16:00:06,853 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [290193220] [2022-07-14 16:00:06,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 16:00:06,854 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 16:00:06,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-14 16:00:06,871 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-14 16:00:06,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-14 16:00:06,885 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-14 16:00:06,886 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 16:00:06,886 INFO L85 PathProgramCache]: Analyzing trace with hash 579152049, now seen corresponding path program 1 times [2022-07-14 16:00:06,886 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 16:00:06,886 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1215564860] [2022-07-14 16:00:06,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 16:00:06,886 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 16:00:06,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 16:00:06,932 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 16:00:06,933 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 16:00:06,933 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1215564860] [2022-07-14 16:00:06,933 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1215564860] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 16:00:06,933 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 16:00:06,933 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-14 16:00:06,933 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1079135511] [2022-07-14 16:00:06,933 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 16:00:06,933 INFO L769 eck$LassoCheckResult]: loop already infeasible [2022-07-14 16:00:06,933 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 16:00:06,934 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-14 16:00:06,934 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-14 16:00:06,934 INFO L87 Difference]: Start difference. First operand 505 states and 648 transitions. cyclomatic complexity: 146 Second operand has 5 states, 5 states have (on average 6.0) internal successors, (30), 5 states have internal predecessors, (30), 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 16:00:07,055 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 16:00:07,055 INFO L93 Difference]: Finished difference Result 1461 states and 1836 transitions. [2022-07-14 16:00:07,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-14 16:00:07,057 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 1461 states and 1836 transitions. [2022-07-14 16:00:07,064 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 951 [2022-07-14 16:00:07,069 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 1461 states to 1461 states and 1836 transitions. [2022-07-14 16:00:07,069 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 1461 [2022-07-14 16:00:07,069 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 1461 [2022-07-14 16:00:07,070 INFO L73 IsDeterministic]: Start isDeterministic. Operand 1461 states and 1836 transitions. [2022-07-14 16:00:07,070 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-14 16:00:07,071 INFO L369 hiAutomatonCegarLoop]: Abstraction has 1461 states and 1836 transitions. [2022-07-14 16:00:07,071 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1461 states and 1836 transitions. [2022-07-14 16:00:07,086 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1461 to 998. [2022-07-14 16:00:07,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 998 states, 998 states have (on average 1.2585170340681362) internal successors, (1256), 997 states have internal predecessors, (1256), 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 16:00:07,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 998 states to 998 states and 1256 transitions. [2022-07-14 16:00:07,090 INFO L392 hiAutomatonCegarLoop]: Abstraction has 998 states and 1256 transitions. [2022-07-14 16:00:07,090 INFO L374 stractBuchiCegarLoop]: Abstraction has 998 states and 1256 transitions. [2022-07-14 16:00:07,090 INFO L287 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2022-07-14 16:00:07,090 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 998 states and 1256 transitions. [2022-07-14 16:00:07,093 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 706 [2022-07-14 16:00:07,093 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-14 16:00:07,093 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-14 16:00:07,095 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 16:00:07,095 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, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 16:00:07,095 INFO L752 eck$LassoCheckResult]: Stem: 3676#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;~switchedOnBeforeTS~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 3556#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret48#1, main_~retValue_acc~7#1, main_~tmp~10#1;havoc main_~retValue_acc~7#1;havoc main_~tmp~10#1;assume { :begin_inline_select_helpers } true; 3557#L916 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 3582#L909 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; 3583#L924 main_#t~ret48#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~10#1 := main_#t~ret48#1;havoc main_#t~ret48#1; 3546#L880 assume 0 != main_~tmp~10#1;assume { :begin_inline_setup } true; 3547#L853 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0; 3488#L385 assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet18#1, test_#t~nondet19#1, test_#t~nondet20#1, test_#t~nondet21#1, test_~splverifierCounter~0#1, test_~tmp~5#1, test_~tmp___0~2#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~5#1;havoc test_~tmp___0~2#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 3489#L318-2 [2022-07-14 16:00:07,095 INFO L754 eck$LassoCheckResult]: Loop: 3489#L318-2 assume !false; 4244#L319 assume test_~splverifierCounter~0#1 < 4; 4239#L320 test_~tmp~5#1 := test_#t~nondet18#1;havoc test_#t~nondet18#1; 4234#L328 assume !(0 != test_~tmp~5#1); 3612#L328-2 test_~tmp___0~2#1 := test_#t~nondet19#1;havoc test_#t~nondet19#1; 3576#L338 assume !(0 != test_~tmp___0~2#1); 3577#L338-2 test_~tmp___2~0#1 := test_#t~nondet20#1;havoc test_#t~nondet20#1; 3619#L348 assume !(0 != test_~tmp___2~0#1);test_~tmp___1~0#1 := test_#t~nondet21#1;havoc test_#t~nondet21#1; 3645#L356 assume !(0 != test_~tmp___1~0#1); 3639#L356-2 assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret22#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; 3531#L203 __utac_acc__Specification5_spec__2_#t~ret22#1 := isPumpRunning_#res#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret22#1;havoc __utac_acc__Specification5_spec__2_#t~ret22#1; 3532#L395 assume { :end_inline___utac_acc__Specification5_spec__2 } true; 3613#L74 assume !(0 != ~pumpRunning~0); 3614#L74-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret5#1, processEnvironment_~tmp~1#1;havoc processEnvironment_~tmp~1#1; 3663#L132 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret4#1, processEnvironment__wrappee__highWaterSensor_~tmp~0#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~0#1; 4298#L106-2 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret16#1, isHighWaterLevel_~retValue_acc~2#1, isHighWaterLevel_~tmp~3#1, isHighWaterLevel_~tmp___0~0#1;havoc isHighWaterLevel_~retValue_acc~2#1;havoc isHighWaterLevel_~tmp~3#1;havoc isHighWaterLevel_~tmp___0~0#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~12#1;havoc isHighWaterSensorDry_~retValue_acc~12#1; 3558#L1021-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~12#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~12#1; 3559#L1026-1 isHighWaterLevel_#t~ret16#1 := isHighWaterSensorDry_#res#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~3#1 := isHighWaterLevel_#t~ret16#1;havoc isHighWaterLevel_#t~ret16#1; 4295#L252-3 assume 0 != isHighWaterLevel_~tmp~3#1;isHighWaterLevel_~tmp___0~0#1 := 0; 4292#L252-5 isHighWaterLevel_~retValue_acc~2#1 := isHighWaterLevel_~tmp___0~0#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~2#1; 4289#L258-1 processEnvironment__wrappee__highWaterSensor_#t~ret4#1 := isHighWaterLevel_#res#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~0#1 := processEnvironment__wrappee__highWaterSensor_#t~ret4#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret4#1; 4283#L110-3 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~0#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 4275#L98-2 assume { :end_inline_processEnvironment__wrappee__base } true; 4268#L106-3 assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 4264#L132-1 assume { :end_inline_processEnvironment } true; 4260#L81-1 assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret23#1, __utac_acc__Specification5_spec__3_#t~ret24#1, __utac_acc__Specification5_spec__3_~tmp~6#1, __utac_acc__Specification5_spec__3_~tmp___0~3#1;havoc __utac_acc__Specification5_spec__3_~tmp~6#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~3#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~11#1;havoc getWaterLevel_~retValue_acc~11#1;getWaterLevel_~retValue_acc~11#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~11#1; 4259#L1013 __utac_acc__Specification5_spec__3_#t~ret23#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~6#1 := __utac_acc__Specification5_spec__3_#t~ret23#1;havoc __utac_acc__Specification5_spec__3_#t~ret23#1; 4258#L406 assume 2 != __utac_acc__Specification5_spec__3_~tmp~6#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; 4257#L203-1 __utac_acc__Specification5_spec__3_#t~ret24#1 := isPumpRunning_#res#1;assume { :end_inline_isPumpRunning } true;__utac_acc__Specification5_spec__3_~tmp___0~3#1 := __utac_acc__Specification5_spec__3_#t~ret24#1;havoc __utac_acc__Specification5_spec__3_#t~ret24#1; 4255#L410 assume !(0 != __utac_acc__Specification5_spec__3_~tmp___0~3#1); 4254#L406-1 assume { :end_inline___utac_acc__Specification5_spec__3 } true; 4253#L91 assume { :end_inline_timeShift } true; 3489#L318-2 [2022-07-14 16:00:07,096 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 16:00:07,096 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 4 times [2022-07-14 16:00:07,096 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 16:00:07,096 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1679314729] [2022-07-14 16:00:07,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 16:00:07,097 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 16:00:07,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-14 16:00:07,126 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-14 16:00:07,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-14 16:00:07,133 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-14 16:00:07,133 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 16:00:07,133 INFO L85 PathProgramCache]: Analyzing trace with hash -1799724692, now seen corresponding path program 1 times [2022-07-14 16:00:07,133 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 16:00:07,133 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [90801988] [2022-07-14 16:00:07,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 16:00:07,134 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 16:00:07,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-14 16:00:07,153 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-14 16:00:07,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-14 16:00:07,158 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-14 16:00:07,159 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 16:00:07,159 INFO L85 PathProgramCache]: Analyzing trace with hash -1203167147, now seen corresponding path program 1 times [2022-07-14 16:00:07,159 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 16:00:07,160 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1154262577] [2022-07-14 16:00:07,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 16:00:07,160 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 16:00:07,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-14 16:00:07,169 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-14 16:00:07,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-14 16:00:07,181 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-14 16:00:10,012 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 14.07 04:00:10 BoogieIcfgContainer [2022-07-14 16:00:10,012 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-07-14 16:00:10,013 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-14 16:00:10,013 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-14 16:00:10,014 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-14 16:00:10,014 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.07 04:00:06" (3/4) ... [2022-07-14 16:00:10,016 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2022-07-14 16:00:10,065 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-07-14 16:00:10,066 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-14 16:00:10,066 INFO L158 Benchmark]: Toolchain (without parser) took 4849.94ms. Allocated memory was 111.1MB in the beginning and 182.5MB in the end (delta: 71.3MB). Free memory was 80.1MB in the beginning and 74.4MB in the end (delta: 5.7MB). Peak memory consumption was 75.5MB. Max. memory is 16.1GB. [2022-07-14 16:00:10,067 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 111.1MB. Free memory is still 65.7MB. There was no memory consumed. Max. memory is 16.1GB. [2022-07-14 16:00:10,067 INFO L158 Benchmark]: CACSL2BoogieTranslator took 336.72ms. Allocated memory is still 111.1MB. Free memory was 79.8MB in the beginning and 77.9MB in the end (delta: 1.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-07-14 16:00:10,068 INFO L158 Benchmark]: Boogie Procedure Inliner took 55.16ms. Allocated memory is still 111.1MB. Free memory was 77.9MB in the beginning and 73.8MB in the end (delta: 4.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-07-14 16:00:10,068 INFO L158 Benchmark]: Boogie Preprocessor took 32.91ms. Allocated memory is still 111.1MB. Free memory was 73.8MB in the beginning and 71.3MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-14 16:00:10,068 INFO L158 Benchmark]: RCFGBuilder took 509.50ms. Allocated memory was 111.1MB in the beginning and 140.5MB in the end (delta: 29.4MB). Free memory was 71.3MB in the beginning and 109.5MB in the end (delta: -38.2MB). Peak memory consumption was 29.8MB. Max. memory is 16.1GB. [2022-07-14 16:00:10,069 INFO L158 Benchmark]: BuchiAutomizer took 3856.74ms. Allocated memory was 140.5MB in the beginning and 182.5MB in the end (delta: 41.9MB). Free memory was 108.8MB in the beginning and 77.5MB in the end (delta: 31.3MB). Peak memory consumption was 95.3MB. Max. memory is 16.1GB. [2022-07-14 16:00:10,069 INFO L158 Benchmark]: Witness Printer took 52.76ms. Allocated memory is still 182.5MB. Free memory was 77.5MB in the beginning and 74.4MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-14 16:00:10,070 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 111.1MB. Free memory is still 65.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 336.72ms. Allocated memory is still 111.1MB. Free memory was 79.8MB in the beginning and 77.9MB in the end (delta: 1.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 55.16ms. Allocated memory is still 111.1MB. Free memory was 77.9MB in the beginning and 73.8MB in the end (delta: 4.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 32.91ms. Allocated memory is still 111.1MB. Free memory was 73.8MB in the beginning and 71.3MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 509.50ms. Allocated memory was 111.1MB in the beginning and 140.5MB in the end (delta: 29.4MB). Free memory was 71.3MB in the beginning and 109.5MB in the end (delta: -38.2MB). Peak memory consumption was 29.8MB. Max. memory is 16.1GB. * BuchiAutomizer took 3856.74ms. Allocated memory was 140.5MB in the beginning and 182.5MB in the end (delta: 41.9MB). Free memory was 108.8MB in the beginning and 77.5MB in the end (delta: 31.3MB). Peak memory consumption was 95.3MB. Max. memory is 16.1GB. * Witness Printer took 52.76ms. Allocated memory is still 182.5MB. Free memory was 77.5MB in the beginning and 74.4MB 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 3 terminating modules (3 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.3 modules have a trivial ranking function, the largest among these consists of 5 locations. The remainder module has 998 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 3.7s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 3.2s. Construction of modules took 0.1s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 0. Minimization of det autom 3. Minimization of nondet autom 0. Automata minimization 0.1s AutomataMinimizationTime, 3 MinimizatonAttempts, 466 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, 1282 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1282 mSDsluCounter, 2084 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1189 mSDsCounter, 63 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 146 IncrementalHoareTripleChecker+Invalid, 209 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 63 mSolverCounterUnsat, 895 mSDtfsCounter, 146 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI3 SFLT0 conc0 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: 318]: 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@2735c7ab=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@53ac6435=0, tmp___0=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@920e9b0=0, head=0, pumpRunning=0, tmp___0=0, NULL=1, retValue_acc=0, methaneLevelCritical=0, retValue_acc=1, retValue_acc=1, retValue_acc=1, \result=1, \result=1, tmp=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@469de43b=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4242e65=0, retValue_acc=0, tmp=1, tmp=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@b6af9c4=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@750edd27=0, tmp___2=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3b59f5=0, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@b7693f6=0, cleanupTimeShifts=4, switchedOnBeforeTS=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@23954db9=0, \result=0, tmp=0, tmp___0=0, head=0, \result=1, tmp___1=0, NULL=0, waterLevel=1, systemActive=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4649e192=0, tmp=0, \result=0, tmp=0, retValue_acc=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 318]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L62] int pumpRunning = 0; [L63] int systemActive = 1; [L379] int switchedOnBeforeTS ; [L597] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L794] int cleanupTimeShifts = 4; [L938] int waterLevel = 1; [L939] int methaneLevelCritical = 0; [L871] int retValue_acc ; [L872] int tmp ; [L876] FCALL select_helpers() [L877] FCALL select_features() [L878] CALL, EXPR valid_product() [L920] int retValue_acc ; [L923] retValue_acc = 1 [L924] return (retValue_acc); [L878] RET, EXPR valid_product() [L878] tmp = valid_product() [L880] COND TRUE \read(tmp) [L882] FCALL setup() [L883] CALL runTest() [L861] CALL __utac_acc__Specification5_spec__1() [L384] switchedOnBeforeTS = 0 [L861] RET __utac_acc__Specification5_spec__1() [L862] CALL test() [L309] int splverifierCounter ; [L310] int tmp ; [L311] int tmp___0 ; [L312] int tmp___1 ; [L313] int tmp___2 ; [L316] splverifierCounter = 0 Loop: [L318] COND TRUE 1 [L320] COND TRUE splverifierCounter < 4 [L326] tmp = __VERIFIER_nondet_int() [L328] COND FALSE !(\read(tmp)) [L336] tmp___0 = __VERIFIER_nondet_int() [L338] COND FALSE !(\read(tmp___0)) [L346] tmp___2 = __VERIFIER_nondet_int() [L348] COND FALSE !(\read(tmp___2)) [L354] tmp___1 = __VERIFIER_nondet_int() [L356] COND FALSE !(\read(tmp___1)) [L365] CALL timeShift() [L72] CALL __utac_acc__Specification5_spec__2() [L393] CALL, EXPR isPumpRunning() [L199] int retValue_acc ; [L202] retValue_acc = pumpRunning [L203] return (retValue_acc); [L393] RET, EXPR isPumpRunning() [L393] switchedOnBeforeTS = isPumpRunning() [L72] RET __utac_acc__Specification5_spec__2() [L74] COND FALSE !(\read(pumpRunning)) [L81] COND TRUE \read(systemActive) [L83] CALL processEnvironment() [L129] int tmp ; [L132] COND FALSE !(\read(pumpRunning)) [L147] CALL processEnvironment__wrappee__highWaterSensor() [L103] int tmp ; [L106] COND TRUE ! pumpRunning [L108] CALL, EXPR isHighWaterLevel() [L244] int retValue_acc ; [L245] int tmp ; [L246] int tmp___0 ; [L250] CALL, EXPR isHighWaterSensorDry() [L1018] int retValue_acc ; [L1021] COND TRUE waterLevel < 2 [L1022] retValue_acc = 1 [L1023] return (retValue_acc); [L250] RET, EXPR isHighWaterSensorDry() [L250] tmp = isHighWaterSensorDry() [L252] COND TRUE \read(tmp) [L253] tmp___0 = 0 [L257] retValue_acc = tmp___0 [L258] return (retValue_acc); [L108] RET, EXPR isHighWaterLevel() [L108] tmp = isHighWaterLevel() [L110] COND FALSE !(\read(tmp)) [L116] FCALL processEnvironment__wrappee__base() [L147] RET processEnvironment__wrappee__highWaterSensor() [L83] RET processEnvironment() [L89] CALL __utac_acc__Specification5_spec__3() [L399] int tmp ; [L400] int tmp___0 ; [L404] CALL, EXPR getWaterLevel() [L1009] int retValue_acc ; [L1012] retValue_acc = waterLevel [L1013] return (retValue_acc); [L404] RET, EXPR getWaterLevel() [L404] tmp = getWaterLevel() [L406] COND TRUE tmp != 2 [L408] CALL, EXPR isPumpRunning() [L199] int retValue_acc ; [L202] retValue_acc = pumpRunning [L203] return (retValue_acc); [L408] RET, EXPR isPumpRunning() [L408] tmp___0 = isPumpRunning() [L410] COND FALSE !(\read(tmp___0)) [L89] RET __utac_acc__Specification5_spec__3() [L365] RET timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2022-07-14 16:00:10,110 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM)