./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/minepump_spec2_product18.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_spec2_product18.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 19038d4a2c37771efda8321d3e888c138b34ccd1 ................................................................................................................................................................................................................................................................................................................................................................................... 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 16:01:35,487 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-27 16:01:35,490 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-27 16:01:35,543 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-08-27 16:01:35,543 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-08-27 16:01:35,547 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-08-27 16:01:35,548 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-08-27 16:01:35,553 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-08-27 16:01:35,555 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-08-27 16:01:35,561 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-08-27 16:01:35,562 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-08-27 16:01:35,566 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-08-27 16:01:35,567 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-27 16:01:35,569 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-27 16:01:35,570 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-27 16:01:35,574 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-27 16:01:35,576 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-27 16:01:35,576 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-27 16:01:35,578 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-27 16:01:35,582 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-27 16:01:35,584 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-27 16:01:35,585 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-27 16:01:35,587 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-27 16:01:35,588 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-27 16:01:35,592 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-08-27 16:01:35,593 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-08-27 16:01:35,593 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-08-27 16:01:35,595 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-08-27 16:01:35,595 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-08-27 16:01:35,596 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-08-27 16:01:35,596 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-08-27 16:01:35,597 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-08-27 16:01:35,598 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-08-27 16:01:35,599 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-08-27 16:01:35,600 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-08-27 16:01:35,600 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-08-27 16:01:35,601 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-08-27 16:01:35,601 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-08-27 16:01:35,601 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-27 16:01:35,603 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-27 16:01:35,603 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-27 16:01:35,607 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-08-27 16:01:35,641 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-27 16:01:35,642 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-27 16:01:35,643 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-27 16:01:35,643 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-27 16:01:35,645 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-27 16:01:35,645 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-27 16:01:35,645 INFO L138 SettingsManager]: * Use SBE=true [2021-08-27 16:01:35,645 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-08-27 16:01:35,646 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-08-27 16:01:35,646 INFO L138 SettingsManager]: * Use old map elimination=false [2021-08-27 16:01:35,647 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-08-27 16:01:35,647 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-08-27 16:01:35,647 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-08-27 16:01:35,647 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-27 16:01:35,647 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-27 16:01:35,648 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-08-27 16:01:35,648 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-27 16:01:35,648 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-27 16:01:35,648 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-27 16:01:35,648 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-08-27 16:01:35,648 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-08-27 16:01:35,649 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-08-27 16:01:35,649 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-27 16:01:35,649 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-27 16:01:35,649 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-08-27 16:01:35,649 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-27 16:01:35,650 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-08-27 16:01:35,650 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-27 16:01:35,650 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-27 16:01:35,650 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-27 16:01:35,650 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-08-27 16:01:35,651 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-08-27 16:01:35,652 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-08-27 16:01:35,652 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 19038d4a2c37771efda8321d3e888c138b34ccd1 [2021-08-27 16:01:35,960 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-27 16:01:35,984 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-27 16:01:35,986 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-27 16:01:35,987 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-27 16:01:35,988 INFO L275 PluginConnector]: CDTParser initialized [2021-08-27 16:01:35,988 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec2_product18.cil.c [2021-08-27 16:01:36,042 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c756d8c6c/3585e49e98304f4e8f00ea4b21df85be/FLAG24a72d590 [2021-08-27 16:01:36,532 INFO L306 CDTParser]: Found 1 translation units. [2021-08-27 16:01:36,532 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec2_product18.cil.c [2021-08-27 16:01:36,566 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c756d8c6c/3585e49e98304f4e8f00ea4b21df85be/FLAG24a72d590 [2021-08-27 16:01:37,036 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c756d8c6c/3585e49e98304f4e8f00ea4b21df85be [2021-08-27 16:01:37,039 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-27 16:01:37,041 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-08-27 16:01:37,042 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-27 16:01:37,042 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-27 16:01:37,054 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-27 16:01:37,054 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 04:01:37" (1/1) ... [2021-08-27 16:01:37,055 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@775c577 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:01:37, skipping insertion in model container [2021-08-27 16:01:37,055 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 04:01:37" (1/1) ... [2021-08-27 16:01:37,062 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-27 16:01:37,105 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-27 16:01:37,390 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_spec2_product18.cil.c[17728,17741] [2021-08-27 16:01:37,391 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-27 16:01:37,409 INFO L203 MainTranslator]: Completed pre-run [2021-08-27 16:01:37,493 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_spec2_product18.cil.c[17728,17741] [2021-08-27 16:01:37,498 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-27 16:01:37,513 INFO L208 MainTranslator]: Completed translation [2021-08-27 16:01:37,514 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:01:37 WrapperNode [2021-08-27 16:01:37,514 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-27 16:01:37,516 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-08-27 16:01:37,516 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-08-27 16:01:37,516 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-08-27 16:01:37,521 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:01:37" (1/1) ... [2021-08-27 16:01:37,544 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:01:37" (1/1) ... [2021-08-27 16:01:37,592 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-08-27 16:01:37,595 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-27 16:01:37,595 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-27 16:01:37,595 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-27 16:01:37,602 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:01:37" (1/1) ... [2021-08-27 16:01:37,602 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:01:37" (1/1) ... [2021-08-27 16:01:37,614 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:01:37" (1/1) ... [2021-08-27 16:01:37,620 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:01:37" (1/1) ... [2021-08-27 16:01:37,626 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:01:37" (1/1) ... [2021-08-27 16:01:37,642 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:01:37" (1/1) ... [2021-08-27 16:01:37,643 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:01:37" (1/1) ... [2021-08-27 16:01:37,645 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-27 16:01:37,646 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-27 16:01:37,646 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-27 16:01:37,646 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-27 16:01:37,647 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:01:37" (1/1) ... [2021-08-27 16:01:37,655 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 16:01:37,660 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 16:01:37,678 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 16:01:37,708 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 16:01:37,731 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-08-27 16:01:37,731 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-08-27 16:01:37,731 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-27 16:01:37,731 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-27 16:01:38,523 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-27 16:01:38,524 INFO L299 CfgBuilder]: Removed 100 assume(true) statements. [2021-08-27 16:01:38,526 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 04:01:38 BoogieIcfgContainer [2021-08-27 16:01:38,526 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-27 16:01:38,527 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-08-27 16:01:38,527 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-08-27 16:01:38,531 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-08-27 16:01:38,532 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-08-27 16:01:38,532 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 27.08 04:01:37" (1/3) ... [2021-08-27 16:01:38,533 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@e39d8d9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 27.08 04:01:38, skipping insertion in model container [2021-08-27 16:01:38,533 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-08-27 16:01:38,533 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:01:37" (2/3) ... [2021-08-27 16:01:38,533 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@e39d8d9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 27.08 04:01:38, skipping insertion in model container [2021-08-27 16:01:38,534 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-08-27 16:01:38,534 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 04:01:38" (3/3) ... [2021-08-27 16:01:38,535 INFO L389 chiAutomizerObserver]: Analyzing ICFG minepump_spec2_product18.cil.c [2021-08-27 16:01:38,575 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-08-27 16:01:38,575 INFO L360 BuchiCegarLoop]: Hoare is false [2021-08-27 16:01:38,576 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-08-27 16:01:38,576 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-08-27 16:01:38,576 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-08-27 16:01:38,576 INFO L364 BuchiCegarLoop]: Difference is false [2021-08-27 16:01:38,576 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-08-27 16:01:38,576 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-08-27 16:01:38,594 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 76 states, 75 states have (on average 1.5333333333333334) internal successors, (115), 75 states have internal predecessors, (115), 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 16:01:38,629 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 47 [2021-08-27 16:01:38,629 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-27 16:01:38,629 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-27 16:01:38,636 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-08-27 16:01:38,636 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 16:01:38,636 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-08-27 16:01:38,637 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 76 states, 75 states have (on average 1.5333333333333334) internal successors, (115), 75 states have internal predecessors, (115), 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 16:01:38,648 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 47 [2021-08-27 16:01:38,648 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-27 16:01:38,648 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-27 16:01:38,650 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-08-27 16:01:38,650 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 16:01:38,659 INFO L791 eck$LassoCheckResult]: Stem: 61#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~string10.base, #t~string10.offset := #Ultimate.allocOnStack(13);call #t~string12.base, #t~string12.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string12.base, #t~string12.offset, 1);call write~init~int(110, #t~string12.base, 1 + #t~string12.offset, 1);call write~init~int(0, #t~string12.base, 2 + #t~string12.offset, 1);call #t~string14.base, #t~string14.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string14.base, #t~string14.offset, 1);call write~init~int(102, #t~string14.base, 1 + #t~string14.offset, 1);call write~init~int(102, #t~string14.base, 2 + #t~string14.offset, 1);call write~init~int(0, #t~string14.base, 3 + #t~string14.offset, 1);call #t~string16.base, #t~string16.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string16.base, #t~string16.offset, 1);call write~init~int(80, #t~string16.base, 1 + #t~string16.offset, 1);call write~init~int(117, #t~string16.base, 2 + #t~string16.offset, 1);call write~init~int(109, #t~string16.base, 3 + #t~string16.offset, 1);call write~init~int(112, #t~string16.base, 4 + #t~string16.offset, 1);call write~init~int(58, #t~string16.base, 5 + #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 6 + #t~string16.offset, 1);call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string18.base, #t~string18.offset, 1);call write~init~int(110, #t~string18.base, 1 + #t~string18.offset, 1);call write~init~int(0, #t~string18.base, 2 + #t~string18.offset, 1);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string20.base, #t~string20.offset, 1);call write~init~int(102, #t~string20.base, 1 + #t~string20.offset, 1);call write~init~int(102, #t~string20.base, 2 + #t~string20.offset, 1);call write~init~int(0, #t~string20.base, 3 + #t~string20.offset, 1);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string22.base, #t~string22.offset, 1);call write~init~int(32, #t~string22.base, 1 + #t~string22.offset, 1);call write~init~int(0, #t~string22.base, 2 + #t~string22.offset, 1);call #t~string24.base, #t~string24.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string24.base, #t~string24.offset, 1);call write~init~int(0, #t~string24.base, 1 + #t~string24.offset, 1);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(13);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string35.base, #t~string35.offset, 1);call write~init~int(77, #t~string35.base, 1 + #t~string35.offset, 1);call write~init~int(101, #t~string35.base, 2 + #t~string35.offset, 1);call write~init~int(116, #t~string35.base, 3 + #t~string35.offset, 1);call write~init~int(104, #t~string35.base, 4 + #t~string35.offset, 1);call write~init~int(58, #t~string35.base, 5 + #t~string35.offset, 1);call write~init~int(0, #t~string35.base, 6 + #t~string35.offset, 1);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string37.base, #t~string37.offset, 1);call write~init~int(82, #t~string37.base, 1 + #t~string37.offset, 1);call write~init~int(73, #t~string37.base, 2 + #t~string37.offset, 1);call write~init~int(84, #t~string37.base, 3 + #t~string37.offset, 1);call write~init~int(0, #t~string37.base, 4 + #t~string37.offset, 1);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string39.base, #t~string39.offset, 1);call write~init~int(75, #t~string39.base, 1 + #t~string39.offset, 1);call write~init~int(0, #t~string39.base, 2 + #t~string39.offset, 1);call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string41.base, #t~string41.offset, 1);call write~init~int(0, #t~string41.base, 1 + #t~string41.offset, 1);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(30);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(9);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(21);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(30);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(9);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(21);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(30);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(9);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(25);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(30);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(9);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(25);~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~methAndRunningLastTime~0 := 0; 45#L-1true havoc main_#res;havoc main_#t~ret30, main_~retValue_acc~3, main_~tmp~3;havoc main_~retValue_acc~3;havoc main_~tmp~3; 43#L406true havoc valid_product_#res;havoc valid_product_~retValue_acc~5;havoc valid_product_~retValue_acc~5;valid_product_~retValue_acc~5 := 1;valid_product_#res := valid_product_~retValue_acc~5; 63#L414true main_#t~ret30 := valid_product_#res;main_~tmp~3 := main_#t~ret30;havoc main_#t~ret30; 6#L370true assume 0 != main_~tmp~3; 37#L342true ~methAndRunningLastTime~0 := 0; 44#L882true havoc test_#t~nondet26, test_#t~nondet27, test_#t~nondet28, test_#t~nondet29, test_~splverifierCounter~0, test_~tmp~2, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~2;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 72#L893-1true [2021-08-27 16:01:38,659 INFO L793 eck$LassoCheckResult]: Loop: 72#L893-1true assume !false; 33#L227true assume test_~splverifierCounter~0 < 4; 19#L228true test_~tmp~2 := test_#t~nondet26;havoc test_#t~nondet26; 67#L236true assume !(0 != test_~tmp~2); 74#L236-1true test_~tmp___0~1 := test_#t~nondet27;havoc test_#t~nondet27; 75#L246true assume !(0 != test_~tmp___0~1); 20#L246-1true test_~tmp___2~0 := test_#t~nondet28;havoc test_#t~nondet28; 59#L256true assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 64#L264-2true assume !(0 != ~pumpRunning~0); 68#L60true assume !(0 != ~systemActive~0); 60#L67true havoc __utac_acc__Specification2_spec__2_#t~ret77, __utac_acc__Specification2_spec__2_#t~ret78, __utac_acc__Specification2_spec__2_~tmp~7, __utac_acc__Specification2_spec__2_~tmp___0~2;havoc __utac_acc__Specification2_spec__2_~tmp~7;havoc __utac_acc__Specification2_spec__2_~tmp___0~2;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~6;havoc isMethaneLevelCritical_~retValue_acc~6;isMethaneLevelCritical_~retValue_acc~6 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~6; 46#L463true __utac_acc__Specification2_spec__2_#t~ret77 := isMethaneLevelCritical_#res;__utac_acc__Specification2_spec__2_~tmp~7 := __utac_acc__Specification2_spec__2_#t~ret77;havoc __utac_acc__Specification2_spec__2_#t~ret77; 14#L893true assume !(0 != __utac_acc__Specification2_spec__2_~tmp~7);~methAndRunningLastTime~0 := 0; 72#L893-1true [2021-08-27 16:01:38,666 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 16:01:38,666 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 1 times [2021-08-27 16:01:38,673 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 16:01:38,674 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [540207749] [2021-08-27 16:01:38,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 16:01:38,675 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 16:01:38,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 16:01:38,916 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 16:01:39,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 16:01:39,046 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 16:01:39,048 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 16:01:39,048 INFO L82 PathProgramCache]: Analyzing trace with hash 3553547, now seen corresponding path program 1 times [2021-08-27 16:01:39,049 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 16:01:39,049 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1383497599] [2021-08-27 16:01:39,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 16:01:39,049 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 16:01:39,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 16:01:39,122 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 16:01:39,122 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 16:01:39,122 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1383497599] [2021-08-27 16:01:39,123 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1383497599] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-27 16:01:39,123 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-27 16:01:39,123 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-27 16:01:39,124 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1054561500] [2021-08-27 16:01:39,127 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-08-27 16:01:39,128 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 16:01:39,139 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-27 16:01:39,140 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-27 16:01:39,141 INFO L87 Difference]: Start difference. First operand has 76 states, 75 states have (on average 1.5333333333333334) internal successors, (115), 75 states have internal predecessors, (115), 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 16:01:39,188 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 16:01:39,188 INFO L93 Difference]: Finished difference Result 76 states and 105 transitions. [2021-08-27 16:01:39,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-27 16:01:39,191 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 76 states and 105 transitions. [2021-08-27 16:01:39,199 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 45 [2021-08-27 16:01:39,204 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 76 states to 69 states and 97 transitions. [2021-08-27 16:01:39,205 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 69 [2021-08-27 16:01:39,206 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 69 [2021-08-27 16:01:39,206 INFO L73 IsDeterministic]: Start isDeterministic. Operand 69 states and 97 transitions. [2021-08-27 16:01:39,207 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-27 16:01:39,207 INFO L681 BuchiCegarLoop]: Abstraction has 69 states and 97 transitions. [2021-08-27 16:01:39,219 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states and 97 transitions. [2021-08-27 16:01:39,231 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 69. [2021-08-27 16:01:39,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69 states, 69 states have (on average 1.4057971014492754) internal successors, (97), 68 states have internal predecessors, (97), 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 16:01:39,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 97 transitions. [2021-08-27 16:01:39,237 INFO L704 BuchiCegarLoop]: Abstraction has 69 states and 97 transitions. [2021-08-27 16:01:39,237 INFO L587 BuchiCegarLoop]: Abstraction has 69 states and 97 transitions. [2021-08-27 16:01:39,238 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-08-27 16:01:39,238 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 69 states and 97 transitions. [2021-08-27 16:01:39,242 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 45 [2021-08-27 16:01:39,242 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-27 16:01:39,242 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-27 16:01:39,243 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-08-27 16:01:39,243 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 16:01:39,244 INFO L791 eck$LassoCheckResult]: Stem: 228#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~string10.base, #t~string10.offset := #Ultimate.allocOnStack(13);call #t~string12.base, #t~string12.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string12.base, #t~string12.offset, 1);call write~init~int(110, #t~string12.base, 1 + #t~string12.offset, 1);call write~init~int(0, #t~string12.base, 2 + #t~string12.offset, 1);call #t~string14.base, #t~string14.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string14.base, #t~string14.offset, 1);call write~init~int(102, #t~string14.base, 1 + #t~string14.offset, 1);call write~init~int(102, #t~string14.base, 2 + #t~string14.offset, 1);call write~init~int(0, #t~string14.base, 3 + #t~string14.offset, 1);call #t~string16.base, #t~string16.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string16.base, #t~string16.offset, 1);call write~init~int(80, #t~string16.base, 1 + #t~string16.offset, 1);call write~init~int(117, #t~string16.base, 2 + #t~string16.offset, 1);call write~init~int(109, #t~string16.base, 3 + #t~string16.offset, 1);call write~init~int(112, #t~string16.base, 4 + #t~string16.offset, 1);call write~init~int(58, #t~string16.base, 5 + #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 6 + #t~string16.offset, 1);call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string18.base, #t~string18.offset, 1);call write~init~int(110, #t~string18.base, 1 + #t~string18.offset, 1);call write~init~int(0, #t~string18.base, 2 + #t~string18.offset, 1);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string20.base, #t~string20.offset, 1);call write~init~int(102, #t~string20.base, 1 + #t~string20.offset, 1);call write~init~int(102, #t~string20.base, 2 + #t~string20.offset, 1);call write~init~int(0, #t~string20.base, 3 + #t~string20.offset, 1);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string22.base, #t~string22.offset, 1);call write~init~int(32, #t~string22.base, 1 + #t~string22.offset, 1);call write~init~int(0, #t~string22.base, 2 + #t~string22.offset, 1);call #t~string24.base, #t~string24.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string24.base, #t~string24.offset, 1);call write~init~int(0, #t~string24.base, 1 + #t~string24.offset, 1);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(13);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string35.base, #t~string35.offset, 1);call write~init~int(77, #t~string35.base, 1 + #t~string35.offset, 1);call write~init~int(101, #t~string35.base, 2 + #t~string35.offset, 1);call write~init~int(116, #t~string35.base, 3 + #t~string35.offset, 1);call write~init~int(104, #t~string35.base, 4 + #t~string35.offset, 1);call write~init~int(58, #t~string35.base, 5 + #t~string35.offset, 1);call write~init~int(0, #t~string35.base, 6 + #t~string35.offset, 1);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string37.base, #t~string37.offset, 1);call write~init~int(82, #t~string37.base, 1 + #t~string37.offset, 1);call write~init~int(73, #t~string37.base, 2 + #t~string37.offset, 1);call write~init~int(84, #t~string37.base, 3 + #t~string37.offset, 1);call write~init~int(0, #t~string37.base, 4 + #t~string37.offset, 1);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string39.base, #t~string39.offset, 1);call write~init~int(75, #t~string39.base, 1 + #t~string39.offset, 1);call write~init~int(0, #t~string39.base, 2 + #t~string39.offset, 1);call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string41.base, #t~string41.offset, 1);call write~init~int(0, #t~string41.base, 1 + #t~string41.offset, 1);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(30);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(9);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(21);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(30);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(9);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(21);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(30);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(9);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(25);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(30);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(9);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(25);~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~methAndRunningLastTime~0 := 0; 218#L-1 havoc main_#res;havoc main_#t~ret30, main_~retValue_acc~3, main_~tmp~3;havoc main_~retValue_acc~3;havoc main_~tmp~3; 215#L406 havoc valid_product_#res;havoc valid_product_~retValue_acc~5;havoc valid_product_~retValue_acc~5;valid_product_~retValue_acc~5 := 1;valid_product_#res := valid_product_~retValue_acc~5; 216#L414 main_#t~ret30 := valid_product_#res;main_~tmp~3 := main_#t~ret30;havoc main_#t~ret30; 165#L370 assume 0 != main_~tmp~3; 166#L342 ~methAndRunningLastTime~0 := 0; 209#L882 havoc test_#t~nondet26, test_#t~nondet27, test_#t~nondet28, test_#t~nondet29, test_~splverifierCounter~0, test_~tmp~2, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~2;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 171#L893-1 [2021-08-27 16:01:39,244 INFO L793 eck$LassoCheckResult]: Loop: 171#L893-1 assume !false; 205#L227 assume test_~splverifierCounter~0 < 4; 185#L228 test_~tmp~2 := test_#t~nondet26;havoc test_#t~nondet26; 186#L236 assume !(0 != test_~tmp~2); 197#L236-1 test_~tmp___0~1 := test_#t~nondet27;havoc test_#t~nondet27; 229#L246 assume !(0 != test_~tmp___0~1); 187#L246-1 test_~tmp___2~0 := test_#t~nondet28;havoc test_#t~nondet28; 188#L256 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 227#L264-2 assume !(0 != ~pumpRunning~0); 225#L60 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret7, processEnvironment_~tmp~0;havoc processEnvironment_~tmp~0; 220#L92 assume !(0 != ~pumpRunning~0); 219#L67 havoc __utac_acc__Specification2_spec__2_#t~ret77, __utac_acc__Specification2_spec__2_#t~ret78, __utac_acc__Specification2_spec__2_~tmp~7, __utac_acc__Specification2_spec__2_~tmp___0~2;havoc __utac_acc__Specification2_spec__2_~tmp~7;havoc __utac_acc__Specification2_spec__2_~tmp___0~2;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~6;havoc isMethaneLevelCritical_~retValue_acc~6;isMethaneLevelCritical_~retValue_acc~6 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~6; 217#L463 __utac_acc__Specification2_spec__2_#t~ret77 := isMethaneLevelCritical_#res;__utac_acc__Specification2_spec__2_~tmp~7 := __utac_acc__Specification2_spec__2_#t~ret77;havoc __utac_acc__Specification2_spec__2_#t~ret77; 178#L893 assume !(0 != __utac_acc__Specification2_spec__2_~tmp~7);~methAndRunningLastTime~0 := 0; 171#L893-1 [2021-08-27 16:01:39,245 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 16:01:39,245 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 2 times [2021-08-27 16:01:39,245 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 16:01:39,245 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1898535244] [2021-08-27 16:01:39,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 16:01:39,246 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 16:01:39,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 16:01:39,316 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 16:01:39,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 16:01:39,388 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 16:01:39,389 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 16:01:39,389 INFO L82 PathProgramCache]: Analyzing trace with hash 83166849, now seen corresponding path program 1 times [2021-08-27 16:01:39,389 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 16:01:39,389 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [937414119] [2021-08-27 16:01:39,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 16:01:39,390 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 16:01:39,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 16:01:39,395 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 16:01:39,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 16:01:39,402 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 16:01:39,410 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 16:01:39,410 INFO L82 PathProgramCache]: Analyzing trace with hash 145554759, now seen corresponding path program 1 times [2021-08-27 16:01:39,410 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 16:01:39,412 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1873765225] [2021-08-27 16:01:39,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 16:01:39,413 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 16:01:39,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 16:01:39,471 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 16:01:39,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 16:01:39,541 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 16:02:20,518 WARN L207 SmtUtils]: Spent 40.80 s on a formula simplification. DAG size of input: 495 DAG size of output: 437 [2021-08-27 16:03:02,117 WARN L207 SmtUtils]: Spent 20.26 s on a formula simplification that was a NOOP. DAG size: 435 [2021-08-27 16:03:02,233 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 27.08 04:03:02 BoogieIcfgContainer [2021-08-27 16:03:02,234 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-08-27 16:03:02,234 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-08-27 16:03:02,235 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-08-27 16:03:02,235 INFO L275 PluginConnector]: Witness Printer initialized [2021-08-27 16:03:02,235 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 04:01:38" (3/4) ... [2021-08-27 16:03:02,238 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2021-08-27 16:03:02,281 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-08-27 16:03:02,288 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-08-27 16:03:02,289 INFO L168 Benchmark]: Toolchain (without parser) took 85248.10 ms. Allocated memory was 62.9 MB in the beginning and 96.5 MB in the end (delta: 33.6 MB). Free memory was 43.0 MB in the beginning and 37.5 MB in the end (delta: 5.5 MB). Peak memory consumption was 38.5 MB. Max. memory is 16.1 GB. [2021-08-27 16:03:02,290 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 62.9 MB. Free memory was 45.5 MB in the beginning and 45.4 MB in the end (delta: 44.1 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-08-27 16:03:02,291 INFO L168 Benchmark]: CACSL2BoogieTranslator took 472.82 ms. Allocated memory is still 62.9 MB. Free memory was 42.8 MB in the beginning and 39.5 MB in the end (delta: 3.4 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-08-27 16:03:02,291 INFO L168 Benchmark]: Boogie Procedure Inliner took 78.34 ms. Allocated memory is still 62.9 MB. Free memory was 39.3 MB in the beginning and 36.4 MB in the end (delta: 2.9 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-08-27 16:03:02,291 INFO L168 Benchmark]: Boogie Preprocessor took 50.77 ms. Allocated memory is still 62.9 MB. Free memory was 36.4 MB in the beginning and 34.3 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-08-27 16:03:02,292 INFO L168 Benchmark]: RCFGBuilder took 880.01 ms. Allocated memory was 62.9 MB in the beginning and 79.7 MB in the end (delta: 16.8 MB). Free memory was 34.1 MB in the beginning and 40.6 MB in the end (delta: -6.5 MB). Peak memory consumption was 19.9 MB. Max. memory is 16.1 GB. [2021-08-27 16:03:02,292 INFO L168 Benchmark]: BuchiAutomizer took 83706.98 ms. Allocated memory was 79.7 MB in the beginning and 96.5 MB in the end (delta: 16.8 MB). Free memory was 40.6 MB in the beginning and 39.5 MB in the end (delta: 1.1 MB). Peak memory consumption was 41.0 MB. Max. memory is 16.1 GB. [2021-08-27 16:03:02,293 INFO L168 Benchmark]: Witness Printer took 54.01 ms. Allocated memory is still 96.5 MB. Free memory was 39.5 MB in the beginning and 37.5 MB in the end (delta: 2.1 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-08-27 16:03:02,296 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 62.9 MB. Free memory was 45.5 MB in the beginning and 45.4 MB in the end (delta: 44.1 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 472.82 ms. Allocated memory is still 62.9 MB. Free memory was 42.8 MB in the beginning and 39.5 MB in the end (delta: 3.4 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 78.34 ms. Allocated memory is still 62.9 MB. Free memory was 39.3 MB in the beginning and 36.4 MB in the end (delta: 2.9 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 50.77 ms. Allocated memory is still 62.9 MB. Free memory was 36.4 MB in the beginning and 34.3 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 880.01 ms. Allocated memory was 62.9 MB in the beginning and 79.7 MB in the end (delta: 16.8 MB). Free memory was 34.1 MB in the beginning and 40.6 MB in the end (delta: -6.5 MB). Peak memory consumption was 19.9 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 83706.98 ms. Allocated memory was 79.7 MB in the beginning and 96.5 MB in the end (delta: 16.8 MB). Free memory was 40.6 MB in the beginning and 39.5 MB in the end (delta: 1.1 MB). Peak memory consumption was 41.0 MB. Max. memory is 16.1 GB. * Witness Printer took 54.01 ms. Allocated memory is still 96.5 MB. Free memory was 39.5 MB in the beginning and 37.5 MB in the end (delta: 2.1 MB). There was no memory consumed. 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 69 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 83.6s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 83.4s. 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 19.4ms AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 69 states and ocurred in iteration 1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 102 SDtfs, 102 SDslu, 0 SDs, 0 SdLazy, 3 SolverSat, 3 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 15.4ms 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: 226]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=16818} State at position 1 is {NULL=0, NULL=0, NULL=0, NULL=29606, NULL=0, NULL=16818, retValue_acc=0, NULL=29618, NULL=0, NULL=0, NULL=0, NULL=29615, NULL=29612, NULL=29611, methaneLevelCritical=0, NULL=29621, tmp=0, NULL=0, NULL=0, NULL=29609, NULL=29608, tmp___1=0, NULL=0, NULL=0, NULL=29629, NULL=29607, cleanupTimeShifts=4, NULL=29628, NULL=0, systemActive=1, waterLevel=1, NULL=29622, NULL=0, retValue_acc=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@a1b1327=0, NULL=16819, NULL=0, NULL=29613, NULL=29627, \result=1, NULL=29626, head=0, pumpRunning=0, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@70777a2f=0, tmp=1, NULL=29614, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5c4b5c0e=69, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1adcc1e1=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@13cf99c2=0, NULL=0, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@777ae39b=0, NULL=0, NULL=29624, retValue_acc=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5acb52b0=0, NULL=29610, NULL=29616, NULL=0, NULL=0, NULL=0, NULL=0, NULL=29604, tmp___2=69, tmp___0=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@60c237ca=0, tmp___0=0, splverifierCounter=0, NULL=0, methAndRunningLastTime=0, \result=0, NULL=29619, NULL=29617, NULL=29620, tmp=0, head=0, NULL=29625, NULL=0, NULL=0, NULL=0, NULL=0, NULL=29605, NULL=0, NULL=29623, NULL=29630, tmp=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L52] int pumpRunning = 0; [L53] int systemActive = 1; [L283] int cleanupTimeShifts = 4; [L420] int waterLevel = 1; [L421] int methaneLevelCritical = 0; [L678] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L876] int methAndRunningLastTime ; [L361] int retValue_acc ; [L362] int tmp ; [L410] int retValue_acc ; [L413] retValue_acc = 1 [L414] return (retValue_acc); [L368] tmp = valid_product() [L370] COND TRUE \read(tmp) [L881] methAndRunningLastTime = 0 [L217] int splverifierCounter ; [L218] int tmp ; [L219] int tmp___0 ; [L220] int tmp___1 ; [L221] int tmp___2 ; [L224] splverifierCounter = 0 Loop: [L226] COND TRUE 1 [L228] COND TRUE splverifierCounter < 4 [L234] tmp = __VERIFIER_nondet_int() [L236] COND FALSE !(\read(tmp)) [L244] tmp___0 = __VERIFIER_nondet_int() [L246] COND FALSE !(\read(tmp___0)) [L254] tmp___2 = __VERIFIER_nondet_int() [L256] COND TRUE \read(tmp___2) [L208] systemActive = 1 [L60] COND FALSE !(\read(pumpRunning)) [L67] COND TRUE \read(systemActive) [L89] int tmp ; [L92] COND FALSE !(\read(pumpRunning)) [L886] int tmp ; [L887] int tmp___0 ; [L459] int retValue_acc ; [L462] retValue_acc = methaneLevelCritical [L463] return (retValue_acc); [L891] tmp = isMethaneLevelCritical() [L893] COND FALSE !(\read(tmp)) [L909] methAndRunningLastTime = 0 End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2021-08-27 16:03:02,355 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...