./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/minepump_spec1_product24.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 20ed64ec 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_spec1_product24.cil.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash ed5636201ca86e4c0316e1914010795451711e2b ................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM) --- Real Ultimate output --- This is Ultimate 0.2.1-dev-20ed64e [2021-08-27 15:54:30,591 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-27 15:54:30,593 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-27 15:54:30,619 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-08-27 15:54:30,620 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-08-27 15:54:30,621 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-08-27 15:54:30,622 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-08-27 15:54:30,624 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-08-27 15:54:30,626 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-08-27 15:54:30,626 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-08-27 15:54:30,627 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-08-27 15:54:30,628 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-08-27 15:54:30,629 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-27 15:54:30,630 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-27 15:54:30,631 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-27 15:54:30,632 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-27 15:54:30,633 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-27 15:54:30,633 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-27 15:54:30,635 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-27 15:54:30,636 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-27 15:54:30,637 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-27 15:54:30,638 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-27 15:54:30,639 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-27 15:54:30,640 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-27 15:54:30,642 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-08-27 15:54:30,643 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-08-27 15:54:30,643 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-08-27 15:54:30,644 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-08-27 15:54:30,649 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-08-27 15:54:30,650 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-08-27 15:54:30,650 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-08-27 15:54:30,651 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-08-27 15:54:30,652 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-08-27 15:54:30,655 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-08-27 15:54:30,656 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-08-27 15:54:30,657 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-08-27 15:54:30,657 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-08-27 15:54:30,658 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-08-27 15:54:30,658 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-27 15:54:30,659 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-27 15:54:30,660 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-27 15:54:30,661 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-08-27 15:54:30,701 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-27 15:54:30,701 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-27 15:54:30,702 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-27 15:54:30,702 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-27 15:54:30,703 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-27 15:54:30,703 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-27 15:54:30,703 INFO L138 SettingsManager]: * Use SBE=true [2021-08-27 15:54:30,703 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-08-27 15:54:30,703 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-08-27 15:54:30,703 INFO L138 SettingsManager]: * Use old map elimination=false [2021-08-27 15:54:30,704 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-08-27 15:54:30,704 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-08-27 15:54:30,704 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-08-27 15:54:30,704 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-27 15:54:30,704 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-27 15:54:30,704 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-08-27 15:54:30,704 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-27 15:54:30,705 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-27 15:54:30,705 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-27 15:54:30,705 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-08-27 15:54:30,705 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-08-27 15:54:30,707 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-08-27 15:54:30,708 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-27 15:54:30,708 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-27 15:54:30,708 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-08-27 15:54:30,708 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-27 15:54:30,709 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-08-27 15:54:30,709 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-27 15:54:30,709 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-27 15:54:30,710 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-27 15:54:30,710 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-08-27 15:54:30,710 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-08-27 15:54:30,711 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-08-27 15:54:30,711 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ed5636201ca86e4c0316e1914010795451711e2b [2021-08-27 15:54:31,048 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-27 15:54:31,073 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-27 15:54:31,075 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-27 15:54:31,076 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-27 15:54:31,078 INFO L275 PluginConnector]: CDTParser initialized [2021-08-27 15:54:31,079 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec1_product24.cil.c [2021-08-27 15:54:31,141 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7917eddb8/3352ed875299495bb597cab7b34858b6/FLAG7278aa9c5 [2021-08-27 15:54:31,715 INFO L306 CDTParser]: Found 1 translation units. [2021-08-27 15:54:31,715 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec1_product24.cil.c [2021-08-27 15:54:31,732 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7917eddb8/3352ed875299495bb597cab7b34858b6/FLAG7278aa9c5 [2021-08-27 15:54:32,013 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7917eddb8/3352ed875299495bb597cab7b34858b6 [2021-08-27 15:54:32,016 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-27 15:54:32,018 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-08-27 15:54:32,021 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-27 15:54:32,021 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-27 15:54:32,023 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-27 15:54:32,024 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 03:54:32" (1/1) ... [2021-08-27 15:54:32,024 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@63d0501e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:54:32, skipping insertion in model container [2021-08-27 15:54:32,024 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 03:54:32" (1/1) ... [2021-08-27 15:54:32,029 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-27 15:54:32,060 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-27 15:54:32,240 WARN L228 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_product24.cil.c[12751,12764] [2021-08-27 15:54:32,262 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-27 15:54:32,313 INFO L203 MainTranslator]: Completed pre-run [2021-08-27 15:54:32,361 WARN L228 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_product24.cil.c[12751,12764] [2021-08-27 15:54:32,373 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-27 15:54:32,388 INFO L208 MainTranslator]: Completed translation [2021-08-27 15:54:32,389 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:54:32 WrapperNode [2021-08-27 15:54:32,389 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-27 15:54:32,390 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-08-27 15:54:32,390 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-08-27 15:54:32,390 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-08-27 15:54:32,395 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:54:32" (1/1) ... [2021-08-27 15:54:32,408 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:54:32" (1/1) ... [2021-08-27 15:54:32,443 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-08-27 15:54:32,443 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-27 15:54:32,444 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-27 15:54:32,444 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-27 15:54:32,451 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:54:32" (1/1) ... [2021-08-27 15:54:32,451 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:54:32" (1/1) ... [2021-08-27 15:54:32,455 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:54:32" (1/1) ... [2021-08-27 15:54:32,466 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:54:32" (1/1) ... [2021-08-27 15:54:32,474 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:54:32" (1/1) ... [2021-08-27 15:54:32,490 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:54:32" (1/1) ... [2021-08-27 15:54:32,492 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:54:32" (1/1) ... [2021-08-27 15:54:32,496 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-27 15:54:32,504 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-27 15:54:32,504 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-27 15:54:32,505 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-27 15:54:32,505 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:54:32" (1/1) ... [2021-08-27 15:54:32,512 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:54:32,517 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:54:32,534 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 15:54:32,559 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-08-27 15:54:32,587 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-08-27 15:54:32,587 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-08-27 15:54:32,588 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-27 15:54:32,588 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-27 15:54:33,429 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-27 15:54:33,430 INFO L299 CfgBuilder]: Removed 162 assume(true) statements. [2021-08-27 15:54:33,432 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 03:54:33 BoogieIcfgContainer [2021-08-27 15:54:33,432 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-27 15:54:33,435 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-08-27 15:54:33,435 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-08-27 15:54:33,439 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-08-27 15:54:33,440 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-08-27 15:54:33,443 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 27.08 03:54:32" (1/3) ... [2021-08-27 15:54:33,444 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2df16ca9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 27.08 03:54:33, skipping insertion in model container [2021-08-27 15:54:33,444 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-08-27 15:54:33,444 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:54:32" (2/3) ... [2021-08-27 15:54:33,445 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2df16ca9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 27.08 03:54:33, skipping insertion in model container [2021-08-27 15:54:33,445 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-08-27 15:54:33,445 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 03:54:33" (3/3) ... [2021-08-27 15:54:33,446 INFO L389 chiAutomizerObserver]: Analyzing ICFG minepump_spec1_product24.cil.c [2021-08-27 15:54:33,485 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-08-27 15:54:33,486 INFO L360 BuchiCegarLoop]: Hoare is false [2021-08-27 15:54:33,486 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-08-27 15:54:33,486 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-08-27 15:54:33,486 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-08-27 15:54:33,486 INFO L364 BuchiCegarLoop]: Difference is false [2021-08-27 15:54:33,487 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-08-27 15:54:33,487 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-08-27 15:54:33,500 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 104 states, 103 states have (on average 1.5145631067961165) internal successors, (156), 103 states have internal predecessors, (156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 15:54:33,519 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 67 [2021-08-27 15:54:33,520 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-27 15:54:33,520 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-27 15:54:33,526 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-08-27 15:54:33,526 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 15:54:33,527 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-08-27 15:54:33,527 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 104 states, 103 states have (on average 1.5145631067961165) internal successors, (156), 103 states have internal predecessors, (156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 15:54:33,532 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 67 [2021-08-27 15:54:33,532 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-27 15:54:33,533 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-27 15:54:33,533 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-08-27 15:54:33,533 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 15:54:33,538 INFO L791 eck$LassoCheckResult]: Stem: 90#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(31);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);call #t~string25.base, #t~string25.offset := #Ultimate.allocOnStack(30);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(9);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(21);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(30);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(9);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(21);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(30);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(9);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(25);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(30);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(9);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(25);call #t~string43.base, #t~string43.offset := #Ultimate.allocOnStack(13);call #t~string45.base, #t~string45.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string45.base, #t~string45.offset, 1);call write~init~int(77, #t~string45.base, 1 + #t~string45.offset, 1);call write~init~int(101, #t~string45.base, 2 + #t~string45.offset, 1);call write~init~int(116, #t~string45.base, 3 + #t~string45.offset, 1);call write~init~int(104, #t~string45.base, 4 + #t~string45.offset, 1);call write~init~int(58, #t~string45.base, 5 + #t~string45.offset, 1);call write~init~int(0, #t~string45.base, 6 + #t~string45.offset, 1);call #t~string47.base, #t~string47.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string47.base, #t~string47.offset, 1);call write~init~int(82, #t~string47.base, 1 + #t~string47.offset, 1);call write~init~int(73, #t~string47.base, 2 + #t~string47.offset, 1);call write~init~int(84, #t~string47.base, 3 + #t~string47.offset, 1);call write~init~int(0, #t~string47.base, 4 + #t~string47.offset, 1);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string49.base, #t~string49.offset, 1);call write~init~int(75, #t~string49.base, 1 + #t~string49.offset, 1);call write~init~int(0, #t~string49.base, 2 + #t~string49.offset, 1);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string51.base, #t~string51.offset, 1);call write~init~int(0, #t~string51.base, 1 + #t~string51.offset, 1);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(13);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string65.base, #t~string65.offset, 1);call write~init~int(110, #t~string65.base, 1 + #t~string65.offset, 1);call write~init~int(0, #t~string65.base, 2 + #t~string65.offset, 1);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string67.base, #t~string67.offset, 1);call write~init~int(102, #t~string67.base, 1 + #t~string67.offset, 1);call write~init~int(102, #t~string67.base, 2 + #t~string67.offset, 1);call write~init~int(0, #t~string67.base, 3 + #t~string67.offset, 1);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string69.base, #t~string69.offset, 1);call write~init~int(80, #t~string69.base, 1 + #t~string69.offset, 1);call write~init~int(117, #t~string69.base, 2 + #t~string69.offset, 1);call write~init~int(109, #t~string69.base, 3 + #t~string69.offset, 1);call write~init~int(112, #t~string69.base, 4 + #t~string69.offset, 1);call write~init~int(58, #t~string69.base, 5 + #t~string69.offset, 1);call write~init~int(0, #t~string69.base, 6 + #t~string69.offset, 1);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string71.base, #t~string71.offset, 1);call write~init~int(110, #t~string71.base, 1 + #t~string71.offset, 1);call write~init~int(0, #t~string71.base, 2 + #t~string71.offset, 1);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string73.base, #t~string73.offset, 1);call write~init~int(102, #t~string73.base, 1 + #t~string73.offset, 1);call write~init~int(102, #t~string73.base, 2 + #t~string73.offset, 1);call write~init~int(0, #t~string73.base, 3 + #t~string73.offset, 1);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string75.base, #t~string75.offset, 1);call write~init~int(32, #t~string75.base, 1 + #t~string75.offset, 1);call write~init~int(0, #t~string75.base, 2 + #t~string75.offset, 1);call #t~string77.base, #t~string77.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string77.base, #t~string77.offset, 1);call write~init~int(0, #t~string77.base, 1 + #t~string77.offset, 1);~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1; 31#L-1true havoc main_#res;havoc main_#t~ret58, main_~retValue_acc~6, main_~tmp~5;havoc main_~retValue_acc~6;havoc main_~tmp~5; 106#L939true havoc valid_product_#res;havoc valid_product_~retValue_acc~11;havoc valid_product_~retValue_acc~11;valid_product_~retValue_acc~11 := 1;valid_product_#res := valid_product_~retValue_acc~11; 39#L947true main_#t~ret58 := valid_product_#res;main_~tmp~5 := main_#t~ret58;havoc main_#t~ret58; 49#L700true assume 0 != main_~tmp~5; 16#L674true havoc test_#t~nondet54, test_#t~nondet55, test_#t~nondet56, test_#t~nondet57, test_~splverifierCounter~0, test_~tmp~4, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~4;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 29#L514-1true [2021-08-27 15:54:33,543 INFO L793 eck$LassoCheckResult]: Loop: 29#L514-1true assume !false; 92#L556true assume test_~splverifierCounter~0 < 4; 103#L557true test_~tmp~4 := test_#t~nondet54;havoc test_#t~nondet54; 17#L565true assume !(0 != test_~tmp~4); 13#L565-1true test_~tmp___0~1 := test_#t~nondet55;havoc test_#t~nondet55; 11#L575true assume !(0 != test_~tmp___0~1); 26#L575-1true test_~tmp___2~0 := test_#t~nondet56;havoc test_#t~nondet56; 64#L585true assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 76#L593-1true assume !(0 != ~pumpRunning~0); 102#L723true assume !(0 != ~systemActive~0); 46#L730true havoc __utac_acc__Specification1_spec__1_#t~ret52, __utac_acc__Specification1_spec__1_#t~ret53, __utac_acc__Specification1_spec__1_~tmp~3, __utac_acc__Specification1_spec__1_~tmp___0~0;havoc __utac_acc__Specification1_spec__1_~tmp~3;havoc __utac_acc__Specification1_spec__1_~tmp___0~0;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~3;havoc isMethaneLevelCritical_~retValue_acc~3;isMethaneLevelCritical_~retValue_acc~3 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~3; 100#L458-1true __utac_acc__Specification1_spec__1_#t~ret52 := isMethaneLevelCritical_#res;__utac_acc__Specification1_spec__1_~tmp~3 := __utac_acc__Specification1_spec__1_#t~ret52;havoc __utac_acc__Specification1_spec__1_#t~ret52; 71#L514true assume !(0 != __utac_acc__Specification1_spec__1_~tmp~3); 29#L514-1true [2021-08-27 15:54:33,549 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 15:54:33,549 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 1 times [2021-08-27 15:54:33,556 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 15:54:33,557 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2039963942] [2021-08-27 15:54:33,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 15:54:33,558 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 15:54:33,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 15:54:33,802 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 15:54:33,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 15:54:33,926 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 15:54:33,929 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 15:54:33,929 INFO L82 PathProgramCache]: Analyzing trace with hash -1670755444, now seen corresponding path program 1 times [2021-08-27 15:54:33,929 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 15:54:33,930 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [281568018] [2021-08-27 15:54:33,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 15:54:33,930 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 15:54:33,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 15:54:33,981 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 15:54:33,981 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 15:54:33,981 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [281568018] [2021-08-27 15:54:33,982 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [281568018] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-27 15:54:33,982 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-27 15:54:33,982 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-27 15:54:33,983 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1380699002] [2021-08-27 15:54:33,986 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-08-27 15:54:33,987 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 15:54:33,998 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-27 15:54:33,999 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-27 15:54:34,000 INFO L87 Difference]: Start difference. First operand has 104 states, 103 states have (on average 1.5145631067961165) internal successors, (156), 103 states have internal predecessors, (156), 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 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 15:54:34,055 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 15:54:34,056 INFO L93 Difference]: Finished difference Result 202 states and 288 transitions. [2021-08-27 15:54:34,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-27 15:54:34,058 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 202 states and 288 transitions. [2021-08-27 15:54:34,062 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 130 [2021-08-27 15:54:34,067 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 202 states to 188 states and 273 transitions. [2021-08-27 15:54:34,068 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 188 [2021-08-27 15:54:34,069 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 188 [2021-08-27 15:54:34,069 INFO L73 IsDeterministic]: Start isDeterministic. Operand 188 states and 273 transitions. [2021-08-27 15:54:34,070 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-27 15:54:34,070 INFO L681 BuchiCegarLoop]: Abstraction has 188 states and 273 transitions. [2021-08-27 15:54:34,084 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 188 states and 273 transitions. [2021-08-27 15:54:34,099 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 188 to 186. [2021-08-27 15:54:34,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 186 states, 186 states have (on average 1.4516129032258065) internal successors, (270), 185 states have internal predecessors, (270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 15:54:34,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 186 states to 186 states and 270 transitions. [2021-08-27 15:54:34,102 INFO L704 BuchiCegarLoop]: Abstraction has 186 states and 270 transitions. [2021-08-27 15:54:34,102 INFO L587 BuchiCegarLoop]: Abstraction has 186 states and 270 transitions. [2021-08-27 15:54:34,102 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-08-27 15:54:34,102 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 186 states and 270 transitions. [2021-08-27 15:54:34,105 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 128 [2021-08-27 15:54:34,105 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-27 15:54:34,105 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-27 15:54:34,106 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-08-27 15:54:34,106 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 15:54:34,106 INFO L791 eck$LassoCheckResult]: Stem: 417#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(31);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);call #t~string25.base, #t~string25.offset := #Ultimate.allocOnStack(30);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(9);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(21);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(30);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(9);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(21);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(30);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(9);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(25);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(30);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(9);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(25);call #t~string43.base, #t~string43.offset := #Ultimate.allocOnStack(13);call #t~string45.base, #t~string45.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string45.base, #t~string45.offset, 1);call write~init~int(77, #t~string45.base, 1 + #t~string45.offset, 1);call write~init~int(101, #t~string45.base, 2 + #t~string45.offset, 1);call write~init~int(116, #t~string45.base, 3 + #t~string45.offset, 1);call write~init~int(104, #t~string45.base, 4 + #t~string45.offset, 1);call write~init~int(58, #t~string45.base, 5 + #t~string45.offset, 1);call write~init~int(0, #t~string45.base, 6 + #t~string45.offset, 1);call #t~string47.base, #t~string47.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string47.base, #t~string47.offset, 1);call write~init~int(82, #t~string47.base, 1 + #t~string47.offset, 1);call write~init~int(73, #t~string47.base, 2 + #t~string47.offset, 1);call write~init~int(84, #t~string47.base, 3 + #t~string47.offset, 1);call write~init~int(0, #t~string47.base, 4 + #t~string47.offset, 1);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string49.base, #t~string49.offset, 1);call write~init~int(75, #t~string49.base, 1 + #t~string49.offset, 1);call write~init~int(0, #t~string49.base, 2 + #t~string49.offset, 1);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string51.base, #t~string51.offset, 1);call write~init~int(0, #t~string51.base, 1 + #t~string51.offset, 1);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(13);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string65.base, #t~string65.offset, 1);call write~init~int(110, #t~string65.base, 1 + #t~string65.offset, 1);call write~init~int(0, #t~string65.base, 2 + #t~string65.offset, 1);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string67.base, #t~string67.offset, 1);call write~init~int(102, #t~string67.base, 1 + #t~string67.offset, 1);call write~init~int(102, #t~string67.base, 2 + #t~string67.offset, 1);call write~init~int(0, #t~string67.base, 3 + #t~string67.offset, 1);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string69.base, #t~string69.offset, 1);call write~init~int(80, #t~string69.base, 1 + #t~string69.offset, 1);call write~init~int(117, #t~string69.base, 2 + #t~string69.offset, 1);call write~init~int(109, #t~string69.base, 3 + #t~string69.offset, 1);call write~init~int(112, #t~string69.base, 4 + #t~string69.offset, 1);call write~init~int(58, #t~string69.base, 5 + #t~string69.offset, 1);call write~init~int(0, #t~string69.base, 6 + #t~string69.offset, 1);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string71.base, #t~string71.offset, 1);call write~init~int(110, #t~string71.base, 1 + #t~string71.offset, 1);call write~init~int(0, #t~string71.base, 2 + #t~string71.offset, 1);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string73.base, #t~string73.offset, 1);call write~init~int(102, #t~string73.base, 1 + #t~string73.offset, 1);call write~init~int(102, #t~string73.base, 2 + #t~string73.offset, 1);call write~init~int(0, #t~string73.base, 3 + #t~string73.offset, 1);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string75.base, #t~string75.offset, 1);call write~init~int(32, #t~string75.base, 1 + #t~string75.offset, 1);call write~init~int(0, #t~string75.base, 2 + #t~string75.offset, 1);call #t~string77.base, #t~string77.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string77.base, #t~string77.offset, 1);call write~init~int(0, #t~string77.base, 1 + #t~string77.offset, 1);~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1; 360#L-1 havoc main_#res;havoc main_#t~ret58, main_~retValue_acc~6, main_~tmp~5;havoc main_~retValue_acc~6;havoc main_~tmp~5; 361#L939 havoc valid_product_#res;havoc valid_product_~retValue_acc~11;havoc valid_product_~retValue_acc~11;valid_product_~retValue_acc~11 := 1;valid_product_#res := valid_product_~retValue_acc~11; 372#L947 main_#t~ret58 := valid_product_#res;main_~tmp~5 := main_#t~ret58;havoc main_#t~ret58; 373#L700 assume 0 != main_~tmp~5; 340#L674 havoc test_#t~nondet54, test_#t~nondet55, test_#t~nondet56, test_#t~nondet57, test_~splverifierCounter~0, test_~tmp~4, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~4;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 326#L514-1 [2021-08-27 15:54:34,106 INFO L793 eck$LassoCheckResult]: Loop: 326#L514-1 assume !false; 359#L556 assume test_~splverifierCounter~0 < 4; 424#L557 test_~tmp~4 := test_#t~nondet54;havoc test_#t~nondet54; 341#L565 assume !(0 != test_~tmp~4); 335#L565-1 test_~tmp___0~1 := test_#t~nondet55;havoc test_#t~nondet55; 329#L575 assume !(0 != test_~tmp___0~1); 330#L575-1 test_~tmp___2~0 := test_#t~nondet56;havoc test_#t~nondet56; 451#L585 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 399#L593-1 assume !(0 != ~pumpRunning~0); 448#L723 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret60, processEnvironment_~tmp~7;havoc processEnvironment_~tmp~7; 441#L781 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__lowWaterSensor_#t~ret59, processEnvironment__wrappee__lowWaterSensor_~tmp~6;havoc processEnvironment__wrappee__lowWaterSensor_~tmp~6; 434#L755-1 assume !(0 != ~pumpRunning~0); 433#L730 havoc __utac_acc__Specification1_spec__1_#t~ret52, __utac_acc__Specification1_spec__1_#t~ret53, __utac_acc__Specification1_spec__1_~tmp~3, __utac_acc__Specification1_spec__1_~tmp___0~0;havoc __utac_acc__Specification1_spec__1_~tmp~3;havoc __utac_acc__Specification1_spec__1_~tmp___0~0;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~3;havoc isMethaneLevelCritical_~retValue_acc~3;isMethaneLevelCritical_~retValue_acc~3 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~3; 423#L458-1 __utac_acc__Specification1_spec__1_#t~ret52 := isMethaneLevelCritical_#res;__utac_acc__Specification1_spec__1_~tmp~3 := __utac_acc__Specification1_spec__1_#t~ret52;havoc __utac_acc__Specification1_spec__1_#t~ret52; 406#L514 assume !(0 != __utac_acc__Specification1_spec__1_~tmp~3); 326#L514-1 [2021-08-27 15:54:34,107 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 15:54:34,107 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 2 times [2021-08-27 15:54:34,107 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 15:54:34,107 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1414073050] [2021-08-27 15:54:34,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 15:54:34,108 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 15:54:34,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 15:54:34,143 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 15:54:34,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 15:54:34,195 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 15:54:34,196 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 15:54:34,196 INFO L82 PathProgramCache]: Analyzing trace with hash -1427585826, now seen corresponding path program 1 times [2021-08-27 15:54:34,197 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 15:54:34,197 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1340411105] [2021-08-27 15:54:34,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 15:54:34,197 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 15:54:34,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 15:54:34,202 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 15:54:34,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 15:54:34,207 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 15:54:34,208 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 15:54:34,208 INFO L82 PathProgramCache]: Analyzing trace with hash 1021999224, now seen corresponding path program 1 times [2021-08-27 15:54:34,209 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 15:54:34,209 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [341202885] [2021-08-27 15:54:34,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 15:54:34,209 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 15:54:34,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 15:54:34,240 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 15:54:34,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 15:54:34,281 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 15:55:18,125 WARN L207 SmtUtils]: Spent 43.63 s on a formula simplification. DAG size of input: 491 DAG size of output: 433 [2021-08-27 15:56:02,342 WARN L207 SmtUtils]: Spent 21.45 s on a formula simplification that was a NOOP. DAG size: 433 [2021-08-27 15:56:02,487 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 27.08 03:56:02 BoogieIcfgContainer [2021-08-27 15:56:02,488 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-08-27 15:56:02,488 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-08-27 15:56:02,488 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-08-27 15:56:02,489 INFO L275 PluginConnector]: Witness Printer initialized [2021-08-27 15:56:02,489 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 03:54:33" (3/4) ... [2021-08-27 15:56:02,491 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2021-08-27 15:56:02,531 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-08-27 15:56:02,531 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-08-27 15:56:02,532 INFO L168 Benchmark]: Toolchain (without parser) took 90513.43 ms. Allocated memory was 67.1 MB in the beginning and 100.7 MB in the end (delta: 33.6 MB). Free memory was 45.9 MB in the beginning and 19.0 MB in the end (delta: 26.8 MB). Peak memory consumption was 59.7 MB. Max. memory is 16.1 GB. [2021-08-27 15:56:02,533 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 67.1 MB. Free memory was 47.7 MB in the beginning and 47.6 MB in the end (delta: 37.1 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-08-27 15:56:02,533 INFO L168 Benchmark]: CACSL2BoogieTranslator took 368.38 ms. Allocated memory is still 67.1 MB. Free memory was 45.6 MB in the beginning and 44.3 MB in the end (delta: 1.3 MB). Peak memory consumption was 16.4 MB. Max. memory is 16.1 GB. [2021-08-27 15:56:02,533 INFO L168 Benchmark]: Boogie Procedure Inliner took 53.20 ms. Allocated memory is still 67.1 MB. Free memory was 44.1 MB in the beginning and 40.7 MB in the end (delta: 3.3 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-08-27 15:56:02,534 INFO L168 Benchmark]: Boogie Preprocessor took 59.78 ms. Allocated memory is still 67.1 MB. Free memory was 40.7 MB in the beginning and 38.2 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-08-27 15:56:02,534 INFO L168 Benchmark]: RCFGBuilder took 928.48 ms. Allocated memory was 67.1 MB in the beginning and 83.9 MB in the end (delta: 16.8 MB). Free memory was 38.2 MB in the beginning and 57.5 MB in the end (delta: -19.2 MB). Peak memory consumption was 19.7 MB. Max. memory is 16.1 GB. [2021-08-27 15:56:02,535 INFO L168 Benchmark]: BuchiAutomizer took 89052.60 ms. Allocated memory was 83.9 MB in the beginning and 100.7 MB in the end (delta: 16.8 MB). Free memory was 57.5 MB in the beginning and 22.1 MB in the end (delta: 35.4 MB). Peak memory consumption was 59.9 MB. Max. memory is 16.1 GB. [2021-08-27 15:56:02,535 INFO L168 Benchmark]: Witness Printer took 43.01 ms. Allocated memory is still 100.7 MB. Free memory was 22.1 MB in the beginning and 19.0 MB in the end (delta: 3.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-08-27 15:56:02,538 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 67.1 MB. Free memory was 47.7 MB in the beginning and 47.6 MB in the end (delta: 37.1 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 368.38 ms. Allocated memory is still 67.1 MB. Free memory was 45.6 MB in the beginning and 44.3 MB in the end (delta: 1.3 MB). Peak memory consumption was 16.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 53.20 ms. Allocated memory is still 67.1 MB. Free memory was 44.1 MB in the beginning and 40.7 MB in the end (delta: 3.3 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 59.78 ms. Allocated memory is still 67.1 MB. Free memory was 40.7 MB in the beginning and 38.2 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 928.48 ms. Allocated memory was 67.1 MB in the beginning and 83.9 MB in the end (delta: 16.8 MB). Free memory was 38.2 MB in the beginning and 57.5 MB in the end (delta: -19.2 MB). Peak memory consumption was 19.7 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 89052.60 ms. Allocated memory was 83.9 MB in the beginning and 100.7 MB in the end (delta: 16.8 MB). Free memory was 57.5 MB in the beginning and 22.1 MB in the end (delta: 35.4 MB). Peak memory consumption was 59.9 MB. Max. memory is 16.1 GB. * Witness Printer took 43.01 ms. Allocated memory is still 100.7 MB. Free memory was 22.1 MB in the beginning and 19.0 MB in the end (delta: 3.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * 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 3 locations. The remainder module has 186 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 88.9s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 88.8s. Construction of modules took 0.0s. Büchi inclusion checks took 0.0s. Highest rank in rank-based complementation 0. Minimization of det autom 1. Minimization of nondet autom 0. Automata minimization 20.4ms AutomataMinimizationTime, 1 MinimizatonAttempts, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 186 states and ocurred in iteration 1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 146 SDtfs, 142 SDslu, 134 SDs, 0 SdLazy, 10 SolverSat, 3 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 24.5ms Time LassoAnalysisResults: nont1 unkn0 SFLI1 SFLT0 conc0 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: 555]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=2664} State at position 1 is {NULL=0, NULL=0, NULL=0, NULL=2664, NULL=2692, NULL=0, retValue_acc=0, NULL=2668, NULL=2683, NULL=0, NULL=2670, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5ffd700e=0, methaneLevelCritical=0, NULL=2682, retValue_acc=1, NULL=0, tmp=0, NULL=0, NULL=0, tmp=0, tmp___1=0, NULL=2665, NULL=0, NULL=0, tmp___0=0, NULL=2684, NULL=2691, NULL=2675, cleanupTimeShifts=4, NULL=2689, NULL=2678, NULL=2679, NULL=0, NULL=0, NULL=0, NULL=0, systemActive=1, waterLevel=1, NULL=2673, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5e607=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@45416568=0, NULL=0, NULL=0, retValue_acc=0, NULL=2677, NULL=2672, \result=1, head=0, pumpRunning=0, NULL=2667, \result=0, NULL=0, NULL=0, tmp=0, NULL=0, NULL=0, tmp=1, NULL=2690, NULL=2676, NULL=0, NULL=0, NULL=2688, NULL=0, NULL=2687, tmp___2=74, NULL=0, NULL=2680, tmp___0=0, NULL=2671, splverifierCounter=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5343f305=0, NULL=0, \result=0, NULL=2674, NULL=2669, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7124548f=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5fd44ec8=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6a902f56=74, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@527b9aa6=0, head=0, NULL=0, NULL=0, NULL=2681, tmp=0, NULL=0, NULL=0, NULL=2686, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3f603ab8=0, NULL=2685, NULL=2666} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L211] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L415] int waterLevel = 1; [L416] int methaneLevelCritical = 0; [L614] int cleanupTimeShifts = 4; [L716] int pumpRunning = 0; [L717] int systemActive = 1; [L691] int retValue_acc ; [L692] int tmp ; [L943] int retValue_acc ; [L946] retValue_acc = 1 [L947] return (retValue_acc); [L698] tmp = valid_product() [L700] COND TRUE \read(tmp) [L546] int splverifierCounter ; [L547] int tmp ; [L548] int tmp___0 ; [L549] int tmp___1 ; [L550] int tmp___2 ; [L553] splverifierCounter = 0 Loop: [L555] COND TRUE 1 [L557] COND TRUE splverifierCounter < 4 [L563] tmp = __VERIFIER_nondet_int() [L565] COND FALSE !(\read(tmp)) [L573] tmp___0 = __VERIFIER_nondet_int() [L575] COND FALSE !(\read(tmp___0)) [L583] tmp___2 = __VERIFIER_nondet_int() [L585] COND TRUE \read(tmp___2) [L912] systemActive = 1 [L723] COND FALSE !(\read(pumpRunning)) [L730] COND TRUE \read(systemActive) [L778] int tmp ; [L781] COND FALSE !(\read(pumpRunning)) [L752] int tmp ; [L755] COND FALSE !(\read(pumpRunning)) [L507] int tmp ; [L508] int tmp___0 ; [L454] int retValue_acc ; [L457] retValue_acc = methaneLevelCritical [L458] return (retValue_acc); [L512] tmp = isMethaneLevelCritical() [L514] COND FALSE !(\read(tmp)) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2021-08-27 15:56:02,586 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...