./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/minepump_spec1_product23.cil.c --full-output -ea --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 03d7b7b3 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -ea -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_spec1_product23.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 0858956fa78fab41d54951630cb21e24f98b592c89580084f0bb3139b8ef83d9 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-03d7b7b [2022-02-21 04:15:13,246 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-21 04:15:13,249 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-21 04:15:13,292 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-02-21 04:15:13,293 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-02-21 04:15:13,297 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-02-21 04:15:13,298 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-02-21 04:15:13,301 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-02-21 04:15:13,303 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-02-21 04:15:13,308 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-02-21 04:15:13,309 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-02-21 04:15:13,310 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-02-21 04:15:13,311 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-21 04:15:13,313 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-21 04:15:13,314 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-21 04:15:13,318 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-21 04:15:13,319 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-21 04:15:13,320 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-21 04:15:13,321 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-21 04:15:13,324 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-21 04:15:13,327 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-21 04:15:13,328 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-21 04:15:13,330 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-21 04:15:13,330 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-21 04:15:13,334 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-02-21 04:15:13,334 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-02-21 04:15:13,335 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-02-21 04:15:13,336 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-02-21 04:15:13,336 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-02-21 04:15:13,337 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-02-21 04:15:13,337 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-02-21 04:15:13,338 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-02-21 04:15:13,340 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-02-21 04:15:13,341 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-02-21 04:15:13,342 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-02-21 04:15:13,342 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-02-21 04:15:13,342 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-02-21 04:15:13,343 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-02-21 04:15:13,343 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-21 04:15:13,344 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-21 04:15:13,344 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-21 04:15:13,345 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2022-02-21 04:15:13,385 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-21 04:15:13,386 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-21 04:15:13,386 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-02-21 04:15:13,387 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-02-21 04:15:13,388 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-02-21 04:15:13,388 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-02-21 04:15:13,393 INFO L138 SettingsManager]: * Use SBE=true [2022-02-21 04:15:13,394 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-02-21 04:15:13,394 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-02-21 04:15:13,394 INFO L138 SettingsManager]: * Use old map elimination=false [2022-02-21 04:15:13,395 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-02-21 04:15:13,395 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-02-21 04:15:13,395 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-02-21 04:15:13,395 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-21 04:15:13,395 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-21 04:15:13,396 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-02-21 04:15:13,396 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-21 04:15:13,396 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-21 04:15:13,396 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-21 04:15:13,396 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-02-21 04:15:13,397 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-02-21 04:15:13,397 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-02-21 04:15:13,397 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-21 04:15:13,397 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-21 04:15:13,397 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-02-21 04:15:13,397 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-21 04:15:13,398 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-02-21 04:15:13,398 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-21 04:15:13,398 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-21 04:15:13,398 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-21 04:15:13,398 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-02-21 04:15:13,400 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-02-21 04:15:13,400 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0858956fa78fab41d54951630cb21e24f98b592c89580084f0bb3139b8ef83d9 [2022-02-21 04:15:13,655 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-21 04:15:13,677 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-21 04:15:13,679 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-21 04:15:13,680 INFO L271 PluginConnector]: Initializing CDTParser... [2022-02-21 04:15:13,680 INFO L275 PluginConnector]: CDTParser initialized [2022-02-21 04:15:13,681 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec1_product23.cil.c [2022-02-21 04:15:13,735 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5e1c91634/a89e485e409d43c3b5e47d7ab02861cd/FLAG484d4a81c [2022-02-21 04:15:14,232 INFO L306 CDTParser]: Found 1 translation units. [2022-02-21 04:15:14,232 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec1_product23.cil.c [2022-02-21 04:15:14,249 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5e1c91634/a89e485e409d43c3b5e47d7ab02861cd/FLAG484d4a81c [2022-02-21 04:15:14,708 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5e1c91634/a89e485e409d43c3b5e47d7ab02861cd [2022-02-21 04:15:14,710 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-21 04:15:14,712 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-02-21 04:15:14,714 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-02-21 04:15:14,714 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-02-21 04:15:14,717 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-02-21 04:15:14,718 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.02 04:15:14" (1/1) ... [2022-02-21 04:15:14,719 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@76311df0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:15:14, skipping insertion in model container [2022-02-21 04:15:14,719 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.02 04:15:14" (1/1) ... [2022-02-21 04:15:14,725 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-02-21 04:15:14,763 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-02-21 04:15:15,025 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_spec1_product23.cil.c[18140,18153] [2022-02-21 04:15:15,027 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-21 04:15:15,040 INFO L203 MainTranslator]: Completed pre-run [2022-02-21 04:15:15,125 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_spec1_product23.cil.c[18140,18153] [2022-02-21 04:15:15,127 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-21 04:15:15,153 INFO L208 MainTranslator]: Completed translation [2022-02-21 04:15:15,156 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:15:15 WrapperNode [2022-02-21 04:15:15,157 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-02-21 04:15:15,158 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-02-21 04:15:15,158 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-02-21 04:15:15,158 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-02-21 04:15:15,164 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:15:15" (1/1) ... [2022-02-21 04:15:15,179 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:15:15" (1/1) ... [2022-02-21 04:15:15,224 INFO L137 Inliner]: procedures = 54, calls = 155, calls flagged for inlining = 52, calls inlined = 79, statements flattened = 564 [2022-02-21 04:15:15,225 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-02-21 04:15:15,225 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-21 04:15:15,226 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-21 04:15:15,226 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-21 04:15:15,233 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:15:15" (1/1) ... [2022-02-21 04:15:15,233 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:15:15" (1/1) ... [2022-02-21 04:15:15,243 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:15:15" (1/1) ... [2022-02-21 04:15:15,244 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:15:15" (1/1) ... [2022-02-21 04:15:15,252 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:15:15" (1/1) ... [2022-02-21 04:15:15,257 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:15:15" (1/1) ... [2022-02-21 04:15:15,259 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:15:15" (1/1) ... [2022-02-21 04:15:15,262 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-21 04:15:15,263 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-21 04:15:15,263 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-21 04:15:15,263 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-21 04:15:15,264 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:15:15" (1/1) ... [2022-02-21 04:15:15,285 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-02-21 04:15:15,293 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-21 04:15:15,302 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) [2022-02-21 04:15:15,307 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 [2022-02-21 04:15:15,331 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-02-21 04:15:15,331 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-02-21 04:15:15,332 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-21 04:15:15,332 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-21 04:15:15,387 INFO L234 CfgBuilder]: Building ICFG [2022-02-21 04:15:15,388 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-21 04:15:15,831 INFO L275 CfgBuilder]: Performing block encoding [2022-02-21 04:15:15,845 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-21 04:15:15,845 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-02-21 04:15:15,847 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 04:15:15 BoogieIcfgContainer [2022-02-21 04:15:15,847 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-21 04:15:15,848 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-02-21 04:15:15,848 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-02-21 04:15:15,850 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-02-21 04:15:15,851 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-02-21 04:15:15,851 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 21.02 04:15:14" (1/3) ... [2022-02-21 04:15:15,852 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2db3f759 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.02 04:15:15, skipping insertion in model container [2022-02-21 04:15:15,852 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-02-21 04:15:15,852 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:15:15" (2/3) ... [2022-02-21 04:15:15,853 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2db3f759 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.02 04:15:15, skipping insertion in model container [2022-02-21 04:15:15,853 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-02-21 04:15:15,853 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 04:15:15" (3/3) ... [2022-02-21 04:15:15,854 INFO L388 chiAutomizerObserver]: Analyzing ICFG minepump_spec1_product23.cil.c [2022-02-21 04:15:15,885 INFO L359 BuchiCegarLoop]: Interprodecural is true [2022-02-21 04:15:15,886 INFO L360 BuchiCegarLoop]: Hoare is false [2022-02-21 04:15:15,886 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-02-21 04:15:15,886 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-02-21 04:15:15,886 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-02-21 04:15:15,886 INFO L364 BuchiCegarLoop]: Difference is false [2022-02-21 04:15:15,886 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-02-21 04:15:15,886 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2022-02-21 04:15:15,905 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 154 states, 153 states have (on average 1.34640522875817) internal successors, (206), 153 states have internal predecessors, (206), 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) [2022-02-21 04:15:15,982 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 100 [2022-02-21 04:15:15,983 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:15:15,983 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:15:15,988 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:15:15,988 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:15:15,988 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2022-02-21 04:15:15,991 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 154 states, 153 states have (on average 1.34640522875817) internal successors, (206), 153 states have internal predecessors, (206), 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) [2022-02-21 04:15:16,005 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 100 [2022-02-21 04:15:16,005 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:15:16,006 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:15:16,006 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:15:16,006 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:15:16,018 INFO L791 eck$LassoCheckResult]: Stem: 140#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(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);call #Ultimate.allocInit(13, 16);call #Ultimate.allocInit(7, 17);call write~init~int(44, 17, 0, 1);call write~init~int(77, 17, 1, 1);call write~init~int(101, 17, 2, 1);call write~init~int(116, 17, 3, 1);call write~init~int(104, 17, 4, 1);call write~init~int(58, 17, 5, 1);call write~init~int(0, 17, 6, 1);call #Ultimate.allocInit(5, 18);call write~init~int(67, 18, 0, 1);call write~init~int(82, 18, 1, 1);call write~init~int(73, 18, 2, 1);call write~init~int(84, 18, 3, 1);call write~init~int(0, 18, 4, 1);call #Ultimate.allocInit(3, 19);call write~init~int(79, 19, 0, 1);call write~init~int(75, 19, 1, 1);call write~init~int(0, 19, 2, 1);call #Ultimate.allocInit(2, 20);call write~init~int(41, 20, 0, 1);call write~init~int(0, 20, 1, 1);call #Ultimate.allocInit(13, 21);call #Ultimate.allocInit(3, 22);call write~init~int(79, 22, 0, 1);call write~init~int(110, 22, 1, 1);call write~init~int(0, 22, 2, 1);call #Ultimate.allocInit(4, 23);call write~init~int(79, 23, 0, 1);call write~init~int(102, 23, 1, 1);call write~init~int(102, 23, 2, 1);call write~init~int(0, 23, 3, 1);call #Ultimate.allocInit(7, 24);call write~init~int(44, 24, 0, 1);call write~init~int(80, 24, 1, 1);call write~init~int(117, 24, 2, 1);call write~init~int(109, 24, 3, 1);call write~init~int(112, 24, 4, 1);call write~init~int(58, 24, 5, 1);call write~init~int(0, 24, 6, 1);call #Ultimate.allocInit(3, 25);call write~init~int(79, 25, 0, 1);call write~init~int(110, 25, 1, 1);call write~init~int(0, 25, 2, 1);call #Ultimate.allocInit(4, 26);call write~init~int(79, 26, 0, 1);call write~init~int(102, 26, 1, 1);call write~init~int(102, 26, 2, 1);call write~init~int(0, 26, 3, 1);call #Ultimate.allocInit(3, 27);call write~init~int(41, 27, 0, 1);call write~init~int(32, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(10, 28, 0, 1);call write~init~int(0, 28, 1, 1);~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4; 45#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret51#1, main_~retValue_acc~11#1, main_~tmp~8#1;havoc main_~retValue_acc~11#1;havoc main_~tmp~8#1;assume { :begin_inline_select_helpers } true; 4#L832true assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 147#L825true assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~10#1;havoc valid_product_~retValue_acc~10#1;valid_product_~retValue_acc~10#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~10#1; 118#L840true main_#t~ret51#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~8#1 := main_#t~ret51#1;havoc main_#t~ret51#1; 12#L927true assume 0 != main_~tmp~8#1;assume { :begin_inline_setup } true; 23#L904true assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet32#1, test_#t~nondet33#1, test_#t~nondet34#1, test_#t~nondet35#1, test_~splverifierCounter~0#1, test_~tmp~3#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~3#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 49#L525-2true [2022-02-21 04:15:16,019 INFO L793 eck$LassoCheckResult]: Loop: 49#L525-2true assume !false; 106#L526true assume test_~splverifierCounter~0#1 < 4; 104#L527true test_~tmp~3#1 := test_#t~nondet32#1;havoc test_#t~nondet32#1; 101#L535true assume !(0 != test_~tmp~3#1); 146#L535-2true test_~tmp___0~0#1 := test_#t~nondet33#1;havoc test_#t~nondet33#1; 18#L545true assume !(0 != test_~tmp___0~0#1); 87#L545-2true test_~tmp___2~0#1 := test_#t~nondet34#1;havoc test_#t~nondet34#1; 149#L555true assume 0 != test_~tmp___2~0#1; 40#L561-2true assume { :begin_inline_timeShift } true; 115#L594true assume !(0 != ~pumpRunning~0); 53#L594-2true assume !(0 != ~systemActive~0); 33#L601-1true assume { :begin_inline___utac_acc__Specification1_spec__1 } true;havoc __utac_acc__Specification1_spec__1_#t~ret48#1, __utac_acc__Specification1_spec__1_#t~ret49#1, __utac_acc__Specification1_spec__1_~tmp~7#1, __utac_acc__Specification1_spec__1_~tmp___0~2#1;havoc __utac_acc__Specification1_spec__1_~tmp~7#1;havoc __utac_acc__Specification1_spec__1_~tmp___0~2#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~3#1;havoc isMethaneLevelCritical_~retValue_acc~3#1;isMethaneLevelCritical_~retValue_acc~3#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~3#1; 84#L466-1true __utac_acc__Specification1_spec__1_#t~ret48#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification1_spec__1_~tmp~7#1 := __utac_acc__Specification1_spec__1_#t~ret48#1;havoc __utac_acc__Specification1_spec__1_#t~ret48#1; 80#L789true assume !(0 != __utac_acc__Specification1_spec__1_~tmp~7#1); 68#L789-1true assume { :end_inline___utac_acc__Specification1_spec__1 } true; 55#L611true assume { :end_inline_timeShift } true; 49#L525-2true [2022-02-21 04:15:16,023 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:15:16,023 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 1 times [2022-02-21 04:15:16,030 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:15:16,030 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2082444977] [2022-02-21 04:15:16,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:15:16,031 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:15:16,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:15:16,157 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:15:16,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:15:16,198 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:15:16,201 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:15:16,201 INFO L85 PathProgramCache]: Analyzing trace with hash -126028796, now seen corresponding path program 1 times [2022-02-21 04:15:16,201 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:15:16,202 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2030910180] [2022-02-21 04:15:16,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:15:16,203 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:15:16,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:15:16,226 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:15:16,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:15:16,232 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:15:16,234 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:15:16,234 INFO L85 PathProgramCache]: Analyzing trace with hash 1229390280, now seen corresponding path program 1 times [2022-02-21 04:15:16,234 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:15:16,234 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [740877182] [2022-02-21 04:15:16,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:15:16,234 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:15:16,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-21 04:15:16,401 INFO L290 TraceCheckUtils]: 0: Hoare triple {162#true} 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(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);call #Ultimate.allocInit(13, 16);call #Ultimate.allocInit(7, 17);call write~init~int(44, 17, 0, 1);call write~init~int(77, 17, 1, 1);call write~init~int(101, 17, 2, 1);call write~init~int(116, 17, 3, 1);call write~init~int(104, 17, 4, 1);call write~init~int(58, 17, 5, 1);call write~init~int(0, 17, 6, 1);call #Ultimate.allocInit(5, 18);call write~init~int(67, 18, 0, 1);call write~init~int(82, 18, 1, 1);call write~init~int(73, 18, 2, 1);call write~init~int(84, 18, 3, 1);call write~init~int(0, 18, 4, 1);call #Ultimate.allocInit(3, 19);call write~init~int(79, 19, 0, 1);call write~init~int(75, 19, 1, 1);call write~init~int(0, 19, 2, 1);call #Ultimate.allocInit(2, 20);call write~init~int(41, 20, 0, 1);call write~init~int(0, 20, 1, 1);call #Ultimate.allocInit(13, 21);call #Ultimate.allocInit(3, 22);call write~init~int(79, 22, 0, 1);call write~init~int(110, 22, 1, 1);call write~init~int(0, 22, 2, 1);call #Ultimate.allocInit(4, 23);call write~init~int(79, 23, 0, 1);call write~init~int(102, 23, 1, 1);call write~init~int(102, 23, 2, 1);call write~init~int(0, 23, 3, 1);call #Ultimate.allocInit(7, 24);call write~init~int(44, 24, 0, 1);call write~init~int(80, 24, 1, 1);call write~init~int(117, 24, 2, 1);call write~init~int(109, 24, 3, 1);call write~init~int(112, 24, 4, 1);call write~init~int(58, 24, 5, 1);call write~init~int(0, 24, 6, 1);call #Ultimate.allocInit(3, 25);call write~init~int(79, 25, 0, 1);call write~init~int(110, 25, 1, 1);call write~init~int(0, 25, 2, 1);call #Ultimate.allocInit(4, 26);call write~init~int(79, 26, 0, 1);call write~init~int(102, 26, 1, 1);call write~init~int(102, 26, 2, 1);call write~init~int(0, 26, 3, 1);call #Ultimate.allocInit(3, 27);call write~init~int(41, 27, 0, 1);call write~init~int(32, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(10, 28, 0, 1);call write~init~int(0, 28, 1, 1);~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4; {164#(= 1 ~systemActive~0)} is VALID [2022-02-21 04:15:16,401 INFO L290 TraceCheckUtils]: 1: Hoare triple {164#(= 1 ~systemActive~0)} assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret51#1, main_~retValue_acc~11#1, main_~tmp~8#1;havoc main_~retValue_acc~11#1;havoc main_~tmp~8#1;assume { :begin_inline_select_helpers } true; {164#(= 1 ~systemActive~0)} is VALID [2022-02-21 04:15:16,403 INFO L290 TraceCheckUtils]: 2: Hoare triple {164#(= 1 ~systemActive~0)} assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; {164#(= 1 ~systemActive~0)} is VALID [2022-02-21 04:15:16,403 INFO L290 TraceCheckUtils]: 3: Hoare triple {164#(= 1 ~systemActive~0)} assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~10#1;havoc valid_product_~retValue_acc~10#1;valid_product_~retValue_acc~10#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~10#1; {165#(= |ULTIMATE.start_valid_product_#res#1| ~systemActive~0)} is VALID [2022-02-21 04:15:16,404 INFO L290 TraceCheckUtils]: 4: Hoare triple {165#(= |ULTIMATE.start_valid_product_#res#1| ~systemActive~0)} main_#t~ret51#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~8#1 := main_#t~ret51#1;havoc main_#t~ret51#1; {166#(= |ULTIMATE.start_main_~tmp~8#1| ~systemActive~0)} is VALID [2022-02-21 04:15:16,405 INFO L290 TraceCheckUtils]: 5: Hoare triple {166#(= |ULTIMATE.start_main_~tmp~8#1| ~systemActive~0)} assume 0 != main_~tmp~8#1;assume { :begin_inline_setup } true; {167#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:15:16,406 INFO L290 TraceCheckUtils]: 6: Hoare triple {167#(not (= 0 ~systemActive~0))} assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet32#1, test_#t~nondet33#1, test_#t~nondet34#1, test_#t~nondet35#1, test_~splverifierCounter~0#1, test_~tmp~3#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~3#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; {167#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:15:16,407 INFO L290 TraceCheckUtils]: 7: Hoare triple {167#(not (= 0 ~systemActive~0))} assume !false; {167#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:15:16,424 INFO L290 TraceCheckUtils]: 8: Hoare triple {167#(not (= 0 ~systemActive~0))} assume test_~splverifierCounter~0#1 < 4; {167#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:15:16,424 INFO L290 TraceCheckUtils]: 9: Hoare triple {167#(not (= 0 ~systemActive~0))} test_~tmp~3#1 := test_#t~nondet32#1;havoc test_#t~nondet32#1; {167#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:15:16,425 INFO L290 TraceCheckUtils]: 10: Hoare triple {167#(not (= 0 ~systemActive~0))} assume !(0 != test_~tmp~3#1); {167#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:15:16,426 INFO L290 TraceCheckUtils]: 11: Hoare triple {167#(not (= 0 ~systemActive~0))} test_~tmp___0~0#1 := test_#t~nondet33#1;havoc test_#t~nondet33#1; {167#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:15:16,426 INFO L290 TraceCheckUtils]: 12: Hoare triple {167#(not (= 0 ~systemActive~0))} assume !(0 != test_~tmp___0~0#1); {167#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:15:16,427 INFO L290 TraceCheckUtils]: 13: Hoare triple {167#(not (= 0 ~systemActive~0))} test_~tmp___2~0#1 := test_#t~nondet34#1;havoc test_#t~nondet34#1; {167#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:15:16,427 INFO L290 TraceCheckUtils]: 14: Hoare triple {167#(not (= 0 ~systemActive~0))} assume 0 != test_~tmp___2~0#1; {167#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:15:16,428 INFO L290 TraceCheckUtils]: 15: Hoare triple {167#(not (= 0 ~systemActive~0))} assume { :begin_inline_timeShift } true; {167#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:15:16,428 INFO L290 TraceCheckUtils]: 16: Hoare triple {167#(not (= 0 ~systemActive~0))} assume !(0 != ~pumpRunning~0); {167#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:15:16,429 INFO L290 TraceCheckUtils]: 17: Hoare triple {167#(not (= 0 ~systemActive~0))} assume !(0 != ~systemActive~0); {163#false} is VALID [2022-02-21 04:15:16,430 INFO L290 TraceCheckUtils]: 18: Hoare triple {163#false} assume { :begin_inline___utac_acc__Specification1_spec__1 } true;havoc __utac_acc__Specification1_spec__1_#t~ret48#1, __utac_acc__Specification1_spec__1_#t~ret49#1, __utac_acc__Specification1_spec__1_~tmp~7#1, __utac_acc__Specification1_spec__1_~tmp___0~2#1;havoc __utac_acc__Specification1_spec__1_~tmp~7#1;havoc __utac_acc__Specification1_spec__1_~tmp___0~2#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~3#1;havoc isMethaneLevelCritical_~retValue_acc~3#1;isMethaneLevelCritical_~retValue_acc~3#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~3#1; {163#false} is VALID [2022-02-21 04:15:16,430 INFO L290 TraceCheckUtils]: 19: Hoare triple {163#false} __utac_acc__Specification1_spec__1_#t~ret48#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification1_spec__1_~tmp~7#1 := __utac_acc__Specification1_spec__1_#t~ret48#1;havoc __utac_acc__Specification1_spec__1_#t~ret48#1; {163#false} is VALID [2022-02-21 04:15:16,430 INFO L290 TraceCheckUtils]: 20: Hoare triple {163#false} assume !(0 != __utac_acc__Specification1_spec__1_~tmp~7#1); {163#false} is VALID [2022-02-21 04:15:16,431 INFO L290 TraceCheckUtils]: 21: Hoare triple {163#false} assume { :end_inline___utac_acc__Specification1_spec__1 } true; {163#false} is VALID [2022-02-21 04:15:16,431 INFO L290 TraceCheckUtils]: 22: Hoare triple {163#false} assume { :end_inline_timeShift } true; {163#false} is VALID [2022-02-21 04:15:16,433 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-21 04:15:16,433 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-21 04:15:16,434 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [740877182] [2022-02-21 04:15:16,434 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [740877182] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-21 04:15:16,434 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-21 04:15:16,435 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-21 04:15:16,435 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2105737457] [2022-02-21 04:15:16,436 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-21 04:15:16,548 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-21 04:15:16,576 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-02-21 04:15:16,577 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-02-21 04:15:16,582 INFO L87 Difference]: Start difference. First operand has 154 states, 153 states have (on average 1.34640522875817) internal successors, (206), 153 states have internal predecessors, (206), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 6 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 5 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:15:17,376 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:15:17,377 INFO L93 Difference]: Finished difference Result 359 states and 461 transitions. [2022-02-21 04:15:17,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-02-21 04:15:17,378 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with has 6 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 5 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:15:17,402 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 23 edges. 23 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-02-21 04:15:17,410 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 359 states and 461 transitions. [2022-02-21 04:15:17,424 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 231 [2022-02-21 04:15:17,439 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 359 states to 329 states and 431 transitions. [2022-02-21 04:15:17,440 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 329 [2022-02-21 04:15:17,440 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 329 [2022-02-21 04:15:17,440 INFO L73 IsDeterministic]: Start isDeterministic. Operand 329 states and 431 transitions. [2022-02-21 04:15:17,442 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-02-21 04:15:17,442 INFO L681 BuchiCegarLoop]: Abstraction has 329 states and 431 transitions. [2022-02-21 04:15:17,455 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 329 states and 431 transitions. [2022-02-21 04:15:17,471 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 329 to 193. [2022-02-21 04:15:17,471 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-02-21 04:15:17,473 INFO L82 GeneralOperation]: Start isEquivalent. First operand 329 states and 431 transitions. Second operand has 193 states, 193 states have (on average 1.310880829015544) internal successors, (253), 192 states have internal predecessors, (253), 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) [2022-02-21 04:15:17,474 INFO L74 IsIncluded]: Start isIncluded. First operand 329 states and 431 transitions. Second operand has 193 states, 193 states have (on average 1.310880829015544) internal successors, (253), 192 states have internal predecessors, (253), 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) [2022-02-21 04:15:17,477 INFO L87 Difference]: Start difference. First operand 329 states and 431 transitions. Second operand has 193 states, 193 states have (on average 1.310880829015544) internal successors, (253), 192 states have internal predecessors, (253), 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) [2022-02-21 04:15:17,490 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:15:17,490 INFO L93 Difference]: Finished difference Result 329 states and 431 transitions. [2022-02-21 04:15:17,491 INFO L276 IsEmpty]: Start isEmpty. Operand 329 states and 431 transitions. [2022-02-21 04:15:17,493 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:15:17,493 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:15:17,494 INFO L74 IsIncluded]: Start isIncluded. First operand has 193 states, 193 states have (on average 1.310880829015544) internal successors, (253), 192 states have internal predecessors, (253), 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 329 states and 431 transitions. [2022-02-21 04:15:17,494 INFO L87 Difference]: Start difference. First operand has 193 states, 193 states have (on average 1.310880829015544) internal successors, (253), 192 states have internal predecessors, (253), 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 329 states and 431 transitions. [2022-02-21 04:15:17,505 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:15:17,506 INFO L93 Difference]: Finished difference Result 329 states and 431 transitions. [2022-02-21 04:15:17,506 INFO L276 IsEmpty]: Start isEmpty. Operand 329 states and 431 transitions. [2022-02-21 04:15:17,507 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:15:17,511 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:15:17,511 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-02-21 04:15:17,511 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-02-21 04:15:17,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 193 states, 193 states have (on average 1.310880829015544) internal successors, (253), 192 states have internal predecessors, (253), 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) [2022-02-21 04:15:17,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 193 states and 253 transitions. [2022-02-21 04:15:17,518 INFO L704 BuchiCegarLoop]: Abstraction has 193 states and 253 transitions. [2022-02-21 04:15:17,518 INFO L587 BuchiCegarLoop]: Abstraction has 193 states and 253 transitions. [2022-02-21 04:15:17,518 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2022-02-21 04:15:17,518 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 193 states and 253 transitions. [2022-02-21 04:15:17,519 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 136 [2022-02-21 04:15:17,519 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:15:17,520 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:15:17,521 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:15:17,521 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:15:17,521 INFO L791 eck$LassoCheckResult]: Stem: 670#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(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);call #Ultimate.allocInit(13, 16);call #Ultimate.allocInit(7, 17);call write~init~int(44, 17, 0, 1);call write~init~int(77, 17, 1, 1);call write~init~int(101, 17, 2, 1);call write~init~int(116, 17, 3, 1);call write~init~int(104, 17, 4, 1);call write~init~int(58, 17, 5, 1);call write~init~int(0, 17, 6, 1);call #Ultimate.allocInit(5, 18);call write~init~int(67, 18, 0, 1);call write~init~int(82, 18, 1, 1);call write~init~int(73, 18, 2, 1);call write~init~int(84, 18, 3, 1);call write~init~int(0, 18, 4, 1);call #Ultimate.allocInit(3, 19);call write~init~int(79, 19, 0, 1);call write~init~int(75, 19, 1, 1);call write~init~int(0, 19, 2, 1);call #Ultimate.allocInit(2, 20);call write~init~int(41, 20, 0, 1);call write~init~int(0, 20, 1, 1);call #Ultimate.allocInit(13, 21);call #Ultimate.allocInit(3, 22);call write~init~int(79, 22, 0, 1);call write~init~int(110, 22, 1, 1);call write~init~int(0, 22, 2, 1);call #Ultimate.allocInit(4, 23);call write~init~int(79, 23, 0, 1);call write~init~int(102, 23, 1, 1);call write~init~int(102, 23, 2, 1);call write~init~int(0, 23, 3, 1);call #Ultimate.allocInit(7, 24);call write~init~int(44, 24, 0, 1);call write~init~int(80, 24, 1, 1);call write~init~int(117, 24, 2, 1);call write~init~int(109, 24, 3, 1);call write~init~int(112, 24, 4, 1);call write~init~int(58, 24, 5, 1);call write~init~int(0, 24, 6, 1);call #Ultimate.allocInit(3, 25);call write~init~int(79, 25, 0, 1);call write~init~int(110, 25, 1, 1);call write~init~int(0, 25, 2, 1);call #Ultimate.allocInit(4, 26);call write~init~int(79, 26, 0, 1);call write~init~int(102, 26, 1, 1);call write~init~int(102, 26, 2, 1);call write~init~int(0, 26, 3, 1);call #Ultimate.allocInit(3, 27);call write~init~int(41, 27, 0, 1);call write~init~int(32, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(10, 28, 0, 1);call write~init~int(0, 28, 1, 1);~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4; 597#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret51#1, main_~retValue_acc~11#1, main_~tmp~8#1;havoc main_~retValue_acc~11#1;havoc main_~tmp~8#1;assume { :begin_inline_select_helpers } true; 531#L832 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 532#L825 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~10#1;havoc valid_product_~retValue_acc~10#1;valid_product_~retValue_acc~10#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~10#1; 660#L840 main_#t~ret51#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~8#1 := main_#t~ret51#1;havoc main_#t~ret51#1; 548#L927 assume 0 != main_~tmp~8#1;assume { :begin_inline_setup } true; 549#L904 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet32#1, test_#t~nondet33#1, test_#t~nondet34#1, test_#t~nondet35#1, test_~splverifierCounter~0#1, test_~tmp~3#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~3#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 569#L525-2 [2022-02-21 04:15:17,523 INFO L793 eck$LassoCheckResult]: Loop: 569#L525-2 assume !false; 603#L526 assume test_~splverifierCounter~0#1 < 4; 653#L527 test_~tmp~3#1 := test_#t~nondet32#1;havoc test_#t~nondet32#1; 651#L535 assume !(0 != test_~tmp~3#1); 652#L535-2 test_~tmp___0~0#1 := test_#t~nondet33#1;havoc test_#t~nondet33#1; 560#L545 assume !(0 != test_~tmp___0~0#1); 547#L545-2 test_~tmp___2~0#1 := test_#t~nondet34#1;havoc test_#t~nondet34#1; 638#L555 assume 0 != test_~tmp___2~0#1; 592#L561-2 assume { :begin_inline_timeShift } true; 593#L594 assume !(0 != ~pumpRunning~0); 609#L594-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret37#1, processEnvironment_~tmp~5#1;havoc processEnvironment_~tmp~5#1; 610#L652 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__lowWaterSensor } true;havoc processEnvironment__wrappee__lowWaterSensor_#t~ret36#1, processEnvironment__wrappee__lowWaterSensor_~tmp~4#1;havoc processEnvironment__wrappee__lowWaterSensor_~tmp~4#1; 628#L626-2 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true; 614#L618-3 assume { :end_inline_processEnvironment__wrappee__base } true; 553#L626-3 assume { :end_inline_processEnvironment__wrappee__lowWaterSensor } true; 550#L652-1 assume { :end_inline_processEnvironment } true; 551#L601-1 assume { :begin_inline___utac_acc__Specification1_spec__1 } true;havoc __utac_acc__Specification1_spec__1_#t~ret48#1, __utac_acc__Specification1_spec__1_#t~ret49#1, __utac_acc__Specification1_spec__1_~tmp~7#1, __utac_acc__Specification1_spec__1_~tmp___0~2#1;havoc __utac_acc__Specification1_spec__1_~tmp~7#1;havoc __utac_acc__Specification1_spec__1_~tmp___0~2#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~3#1;havoc isMethaneLevelCritical_~retValue_acc~3#1;isMethaneLevelCritical_~retValue_acc~3#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~3#1; 580#L466-1 __utac_acc__Specification1_spec__1_#t~ret48#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification1_spec__1_~tmp~7#1 := __utac_acc__Specification1_spec__1_#t~ret48#1;havoc __utac_acc__Specification1_spec__1_#t~ret48#1; 633#L789 assume !(0 != __utac_acc__Specification1_spec__1_~tmp~7#1); 600#L789-1 assume { :end_inline___utac_acc__Specification1_spec__1 } true; 611#L611 assume { :end_inline_timeShift } true; 569#L525-2 [2022-02-21 04:15:17,524 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:15:17,524 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 2 times [2022-02-21 04:15:17,524 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:15:17,524 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [361456597] [2022-02-21 04:15:17,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:15:17,525 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:15:17,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:15:17,538 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:15:17,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:15:17,549 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:15:17,550 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:15:17,550 INFO L85 PathProgramCache]: Analyzing trace with hash 953586313, now seen corresponding path program 1 times [2022-02-21 04:15:17,550 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:15:17,551 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1819531409] [2022-02-21 04:15:17,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:15:17,551 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:15:17,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:15:17,562 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:15:17,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:15:17,566 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:15:17,567 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:15:17,567 INFO L85 PathProgramCache]: Analyzing trace with hash 1405255493, now seen corresponding path program 1 times [2022-02-21 04:15:17,567 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:15:17,567 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [577472695] [2022-02-21 04:15:17,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:15:17,567 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:15:17,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:15:17,606 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:15:17,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:15:17,625 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:15:20,249 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 21.02 04:15:20 BoogieIcfgContainer [2022-02-21 04:15:20,249 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-02-21 04:15:20,250 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-02-21 04:15:20,250 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-02-21 04:15:20,250 INFO L275 PluginConnector]: Witness Printer initialized [2022-02-21 04:15:20,251 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 04:15:15" (3/4) ... [2022-02-21 04:15:20,253 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2022-02-21 04:15:20,288 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-02-21 04:15:20,289 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-02-21 04:15:20,290 INFO L158 Benchmark]: Toolchain (without parser) took 5577.02ms. Allocated memory was 107.0MB in the beginning and 157.3MB in the end (delta: 50.3MB). Free memory was 81.8MB in the beginning and 100.3MB in the end (delta: -18.5MB). Peak memory consumption was 32.9MB. Max. memory is 16.1GB. [2022-02-21 04:15:20,290 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 83.9MB. Free memory was 57.7MB in the beginning and 57.6MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. [2022-02-21 04:15:20,290 INFO L158 Benchmark]: CACSL2BoogieTranslator took 443.09ms. Allocated memory is still 107.0MB. Free memory was 81.8MB in the beginning and 60.3MB in the end (delta: 21.5MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2022-02-21 04:15:20,291 INFO L158 Benchmark]: Boogie Procedure Inliner took 67.10ms. Allocated memory is still 107.0MB. Free memory was 60.3MB in the beginning and 56.4MB in the end (delta: 3.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-02-21 04:15:20,291 INFO L158 Benchmark]: Boogie Preprocessor took 36.98ms. Allocated memory is still 107.0MB. Free memory was 56.4MB in the beginning and 54.0MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-02-21 04:15:20,291 INFO L158 Benchmark]: RCFGBuilder took 583.98ms. Allocated memory is still 107.0MB. Free memory was 54.0MB in the beginning and 70.1MB in the end (delta: -16.1MB). Peak memory consumption was 18.6MB. Max. memory is 16.1GB. [2022-02-21 04:15:20,292 INFO L158 Benchmark]: BuchiAutomizer took 4401.56ms. Allocated memory was 107.0MB in the beginning and 157.3MB in the end (delta: 50.3MB). Free memory was 70.1MB in the beginning and 103.4MB in the end (delta: -33.3MB). Peak memory consumption was 56.3MB. Max. memory is 16.1GB. [2022-02-21 04:15:20,292 INFO L158 Benchmark]: Witness Printer took 38.86ms. Allocated memory is still 157.3MB. Free memory was 103.4MB in the beginning and 100.3MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-02-21 04:15:20,294 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - AssertionsEnabledResult: Assertions are enabled Assertions are enabled - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 83.9MB. Free memory was 57.7MB in the beginning and 57.6MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 443.09ms. Allocated memory is still 107.0MB. Free memory was 81.8MB in the beginning and 60.3MB in the end (delta: 21.5MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 67.10ms. Allocated memory is still 107.0MB. Free memory was 60.3MB in the beginning and 56.4MB in the end (delta: 3.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 36.98ms. Allocated memory is still 107.0MB. Free memory was 56.4MB in the beginning and 54.0MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 583.98ms. Allocated memory is still 107.0MB. Free memory was 54.0MB in the beginning and 70.1MB in the end (delta: -16.1MB). Peak memory consumption was 18.6MB. Max. memory is 16.1GB. * BuchiAutomizer took 4401.56ms. Allocated memory was 107.0MB in the beginning and 157.3MB in the end (delta: 50.3MB). Free memory was 70.1MB in the beginning and 103.4MB in the end (delta: -33.3MB). Peak memory consumption was 56.3MB. Max. memory is 16.1GB. * Witness Printer took 38.86ms. Allocated memory is still 157.3MB. Free memory was 103.4MB in the beginning and 100.3MB 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 1 terminating modules (1 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.1 modules have a trivial ranking function, the largest among these consists of 6 locations. The remainder module has 193 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 4.3s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 3.2s. Construction of modules took 0.0s. Büchi inclusion checks took 0.7s. Highest rank in rank-based complementation 0. Minimization of det autom 1. Minimization of nondet autom 0. Automata minimization 0.1s AutomataMinimizationTime, 1 MinimizatonAttempts, 136 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 193 states and ocurred in iteration 1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 730 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 730 mSDsluCounter, 1059 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 860 mSDsCounter, 9 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 42 IncrementalHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 9 mSolverCounterUnsat, 199 mSDtfsCounter, 42 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI0 SFLT0 conc1 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 525]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=1} State at position 1 is {splverifierCounter=0, NULL=0, head=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@33f90fc3=29, pumpRunning=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3bc1d0dc=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4c9cc200=0, tmp___0=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4159cc47=0, NULL=1, tmp___0=0, methaneLevelCritical=0, retValue_acc=1, \result=0, retValue_acc=0, \result=1, retValue_acc=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@641cdeb5=0, tmp=1, tmp___2=29, cleanupTimeShifts=4, tmp=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@28e90ee8=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6bb02c8a=0, \result=0, tmp=0, head=0, tmp___1=0, NULL=0, waterLevel=1, systemActive=1, tmp=0, tmp=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@13c978b7=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1be8585e=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 525]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L219] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L423] int waterLevel = 1; [L424] int methaneLevelCritical = 0; [L586] int pumpRunning = 0; [L587] int systemActive = 1; [L845] int cleanupTimeShifts = 4; [L918] int retValue_acc ; [L919] int tmp ; [L923] FCALL select_helpers() [L924] FCALL select_features() [L925] CALL, EXPR valid_product() [L836] int retValue_acc ; [L839] retValue_acc = 1 [L840] return (retValue_acc); [L925] RET, EXPR valid_product() [L925] tmp = valid_product() [L927] COND TRUE \read(tmp) [L929] FCALL setup() [L930] CALL runTest() [L912] CALL test() [L516] int splverifierCounter ; [L517] int tmp ; [L518] int tmp___0 ; [L519] int tmp___1 ; [L520] int tmp___2 ; [L523] splverifierCounter = 0 Loop: [L525] COND TRUE 1 [L527] COND TRUE splverifierCounter < 4 [L533] tmp = __VERIFIER_nondet_int() [L535] COND FALSE !(\read(tmp)) [L543] tmp___0 = __VERIFIER_nondet_int() [L545] COND FALSE !(\read(tmp___0)) [L553] tmp___2 = __VERIFIER_nondet_int() [L555] COND TRUE \read(tmp___2) [L570] CALL timeShift() [L594] COND FALSE !(\read(pumpRunning)) [L601] COND TRUE \read(systemActive) [L603] CALL processEnvironment() [L649] int tmp ; [L652] COND FALSE !(\read(pumpRunning)) [L667] CALL processEnvironment__wrappee__lowWaterSensor() [L623] int tmp ; [L626] COND FALSE !(\read(pumpRunning)) [L641] FCALL processEnvironment__wrappee__base() [L667] RET processEnvironment__wrappee__lowWaterSensor() [L603] RET processEnvironment() [L609] CALL __utac_acc__Specification1_spec__1() [L782] int tmp ; [L783] int tmp___0 ; [L787] CALL, EXPR isMethaneLevelCritical() [L462] int retValue_acc ; [L465] retValue_acc = methaneLevelCritical [L466] return (retValue_acc); [L787] RET, EXPR isMethaneLevelCritical() [L787] tmp = isMethaneLevelCritical() [L789] COND FALSE !(\read(tmp)) [L609] RET __utac_acc__Specification1_spec__1() [L570] RET timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2022-02-21 04:15:20,335 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)