./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/minepump_spec4_product28.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_spec4_product28.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 be998c7f0ff858151615865f07914b789231e9b9 ................................................................................................................................................................................................................................................................................................................................................................................ 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 16:16:19,460 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-27 16:16:19,463 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-27 16:16:19,501 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-08-27 16:16:19,501 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-08-27 16:16:19,504 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-08-27 16:16:19,506 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-08-27 16:16:19,511 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-08-27 16:16:19,513 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-08-27 16:16:19,517 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-08-27 16:16:19,518 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-08-27 16:16:19,522 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-08-27 16:16:19,522 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-27 16:16:19,524 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-27 16:16:19,526 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-27 16:16:19,529 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-27 16:16:19,529 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-27 16:16:19,530 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-27 16:16:19,532 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-27 16:16:19,537 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-27 16:16:19,538 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-27 16:16:19,539 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-27 16:16:19,541 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-27 16:16:19,542 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-27 16:16:19,548 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-08-27 16:16:19,549 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-08-27 16:16:19,549 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-08-27 16:16:19,551 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-08-27 16:16:19,551 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-08-27 16:16:19,552 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-08-27 16:16:19,552 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-08-27 16:16:19,553 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-08-27 16:16:19,554 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-08-27 16:16:19,555 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-08-27 16:16:19,556 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-08-27 16:16:19,556 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-08-27 16:16:19,557 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-08-27 16:16:19,557 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-08-27 16:16:19,557 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-27 16:16:19,558 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-27 16:16:19,559 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-27 16:16:19,560 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-08-27 16:16:19,607 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-27 16:16:19,607 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-27 16:16:19,608 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-27 16:16:19,608 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-27 16:16:19,610 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-27 16:16:19,611 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-27 16:16:19,611 INFO L138 SettingsManager]: * Use SBE=true [2021-08-27 16:16:19,611 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-08-27 16:16:19,611 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-08-27 16:16:19,611 INFO L138 SettingsManager]: * Use old map elimination=false [2021-08-27 16:16:19,612 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-08-27 16:16:19,612 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-08-27 16:16:19,613 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-08-27 16:16:19,613 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-27 16:16:19,613 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-27 16:16:19,613 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-08-27 16:16:19,614 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-27 16:16:19,614 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-27 16:16:19,614 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-27 16:16:19,614 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-08-27 16:16:19,614 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-08-27 16:16:19,615 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-08-27 16:16:19,615 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-27 16:16:19,615 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-27 16:16:19,615 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-08-27 16:16:19,615 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-27 16:16:19,615 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-08-27 16:16:19,616 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-27 16:16:19,616 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-27 16:16:19,616 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-27 16:16:19,616 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-08-27 16:16:19,616 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-08-27 16:16:19,618 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-08-27 16:16:19,618 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> be998c7f0ff858151615865f07914b789231e9b9 [2021-08-27 16:16:19,937 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-27 16:16:19,954 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-27 16:16:19,956 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-27 16:16:19,957 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-27 16:16:19,958 INFO L275 PluginConnector]: CDTParser initialized [2021-08-27 16:16:19,959 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec4_product28.cil.c [2021-08-27 16:16:20,012 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/21eaed525/d635d398ad0147b696b1902dc7b61cb0/FLAGffe2d4b35 [2021-08-27 16:16:20,492 INFO L306 CDTParser]: Found 1 translation units. [2021-08-27 16:16:20,493 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec4_product28.cil.c [2021-08-27 16:16:20,511 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/21eaed525/d635d398ad0147b696b1902dc7b61cb0/FLAGffe2d4b35 [2021-08-27 16:16:20,815 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/21eaed525/d635d398ad0147b696b1902dc7b61cb0 [2021-08-27 16:16:20,818 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-27 16:16:20,819 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-08-27 16:16:20,822 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-27 16:16:20,822 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-27 16:16:20,825 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-27 16:16:20,826 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 04:16:20" (1/1) ... [2021-08-27 16:16:20,827 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3446ac68 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:16:20, skipping insertion in model container [2021-08-27 16:16:20,827 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 04:16:20" (1/1) ... [2021-08-27 16:16:20,833 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-27 16:16:20,878 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-27 16:16:20,999 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_spec4_product28.cil.c[1281,1294] [2021-08-27 16:16:21,117 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-27 16:16:21,130 INFO L203 MainTranslator]: Completed pre-run [2021-08-27 16:16:21,154 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_spec4_product28.cil.c[1281,1294] [2021-08-27 16:16:21,218 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-27 16:16:21,242 INFO L208 MainTranslator]: Completed translation [2021-08-27 16:16:21,243 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:16:21 WrapperNode [2021-08-27 16:16:21,244 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-27 16:16:21,245 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-08-27 16:16:21,245 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-08-27 16:16:21,245 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-08-27 16:16:21,251 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:16:21" (1/1) ... [2021-08-27 16:16:21,280 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:16:21" (1/1) ... [2021-08-27 16:16:21,305 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-08-27 16:16:21,306 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-27 16:16:21,306 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-27 16:16:21,306 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-27 16:16:21,312 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:16:21" (1/1) ... [2021-08-27 16:16:21,313 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:16:21" (1/1) ... [2021-08-27 16:16:21,315 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:16:21" (1/1) ... [2021-08-27 16:16:21,315 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:16:21" (1/1) ... [2021-08-27 16:16:21,322 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:16:21" (1/1) ... [2021-08-27 16:16:21,327 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:16:21" (1/1) ... [2021-08-27 16:16:21,328 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:16:21" (1/1) ... [2021-08-27 16:16:21,330 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-27 16:16:21,331 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-27 16:16:21,331 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-27 16:16:21,332 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-27 16:16:21,332 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:16:21" (1/1) ... [2021-08-27 16:16:21,338 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 16:16:21,343 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 16:16:21,353 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 16:16:21,382 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 16:16:21,397 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-08-27 16:16:21,397 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-08-27 16:16:21,397 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-27 16:16:21,397 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-27 16:16:22,147 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-27 16:16:22,147 INFO L299 CfgBuilder]: Removed 102 assume(true) statements. [2021-08-27 16:16:22,149 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 04:16:22 BoogieIcfgContainer [2021-08-27 16:16:22,149 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-27 16:16:22,150 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-08-27 16:16:22,151 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-08-27 16:16:22,152 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-08-27 16:16:22,153 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-08-27 16:16:22,154 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 27.08 04:16:20" (1/3) ... [2021-08-27 16:16:22,155 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@77a6f608 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 27.08 04:16:22, skipping insertion in model container [2021-08-27 16:16:22,155 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-08-27 16:16:22,155 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:16:21" (2/3) ... [2021-08-27 16:16:22,155 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@77a6f608 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 27.08 04:16:22, skipping insertion in model container [2021-08-27 16:16:22,155 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-08-27 16:16:22,155 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 04:16:22" (3/3) ... [2021-08-27 16:16:22,157 INFO L389 chiAutomizerObserver]: Analyzing ICFG minepump_spec4_product28.cil.c [2021-08-27 16:16:22,228 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-08-27 16:16:22,229 INFO L360 BuchiCegarLoop]: Hoare is false [2021-08-27 16:16:22,229 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-08-27 16:16:22,229 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-08-27 16:16:22,229 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-08-27 16:16:22,229 INFO L364 BuchiCegarLoop]: Difference is false [2021-08-27 16:16:22,229 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-08-27 16:16:22,230 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-08-27 16:16:22,242 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 74 states, 73 states have (on average 1.5205479452054795) internal successors, (111), 73 states have internal predecessors, (111), 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 16:16:22,259 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 47 [2021-08-27 16:16:22,259 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-27 16:16:22,259 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-27 16:16:22,265 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-08-27 16:16:22,265 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 16:16:22,265 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-08-27 16:16:22,266 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 74 states, 73 states have (on average 1.5205479452054795) internal successors, (111), 73 states have internal predecessors, (111), 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 16:16:22,270 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 47 [2021-08-27 16:16:22,271 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-27 16:16:22,271 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-27 16:16:22,271 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-08-27 16:16:22,271 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 16:16:22,275 INFO L791 eck$LassoCheckResult]: Stem: 55#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~string49.base, #t~string49.offset := #Ultimate.allocOnStack(13);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string51.base, #t~string51.offset, 1);call write~init~int(110, #t~string51.base, 1 + #t~string51.offset, 1);call write~init~int(0, #t~string51.base, 2 + #t~string51.offset, 1);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string53.base, #t~string53.offset, 1);call write~init~int(102, #t~string53.base, 1 + #t~string53.offset, 1);call write~init~int(102, #t~string53.base, 2 + #t~string53.offset, 1);call write~init~int(0, #t~string53.base, 3 + #t~string53.offset, 1);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string55.base, #t~string55.offset, 1);call write~init~int(80, #t~string55.base, 1 + #t~string55.offset, 1);call write~init~int(117, #t~string55.base, 2 + #t~string55.offset, 1);call write~init~int(109, #t~string55.base, 3 + #t~string55.offset, 1);call write~init~int(112, #t~string55.base, 4 + #t~string55.offset, 1);call write~init~int(58, #t~string55.base, 5 + #t~string55.offset, 1);call write~init~int(0, #t~string55.base, 6 + #t~string55.offset, 1);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string57.base, #t~string57.offset, 1);call write~init~int(110, #t~string57.base, 1 + #t~string57.offset, 1);call write~init~int(0, #t~string57.base, 2 + #t~string57.offset, 1);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string59.base, #t~string59.offset, 1);call write~init~int(102, #t~string59.base, 1 + #t~string59.offset, 1);call write~init~int(102, #t~string59.base, 2 + #t~string59.offset, 1);call write~init~int(0, #t~string59.base, 3 + #t~string59.offset, 1);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string61.base, #t~string61.offset, 1);call write~init~int(32, #t~string61.base, 1 + #t~string61.offset, 1);call write~init~int(0, #t~string61.base, 2 + #t~string61.offset, 1);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string63.base, #t~string63.offset, 1);call write~init~int(0, #t~string63.base, 1 + #t~string63.offset, 1);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(13);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string68.base, #t~string68.offset, 1);call write~init~int(77, #t~string68.base, 1 + #t~string68.offset, 1);call write~init~int(101, #t~string68.base, 2 + #t~string68.offset, 1);call write~init~int(116, #t~string68.base, 3 + #t~string68.offset, 1);call write~init~int(104, #t~string68.base, 4 + #t~string68.offset, 1);call write~init~int(58, #t~string68.base, 5 + #t~string68.offset, 1);call write~init~int(0, #t~string68.base, 6 + #t~string68.offset, 1);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string70.base, #t~string70.offset, 1);call write~init~int(82, #t~string70.base, 1 + #t~string70.offset, 1);call write~init~int(73, #t~string70.base, 2 + #t~string70.offset, 1);call write~init~int(84, #t~string70.base, 3 + #t~string70.offset, 1);call write~init~int(0, #t~string70.base, 4 + #t~string70.offset, 1);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string72.base, #t~string72.offset, 1);call write~init~int(75, #t~string72.base, 1 + #t~string72.offset, 1);call write~init~int(0, #t~string72.base, 2 + #t~string72.offset, 1);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string74.base, #t~string74.offset, 1);call write~init~int(0, #t~string74.base, 1 + #t~string74.offset, 1);~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4; 47#L-1true havoc main_#res;havoc main_#t~ret75, main_~retValue_acc~11, main_~tmp~7;havoc main_~retValue_acc~11;havoc main_~tmp~7; 46#L470true havoc valid_product_#res;havoc valid_product_~retValue_acc~4;havoc valid_product_~retValue_acc~4;valid_product_~retValue_acc~4 := 1;valid_product_#res := valid_product_~retValue_acc~4; 70#L478true main_#t~ret75 := valid_product_#res;main_~tmp~7 := main_#t~ret75;havoc main_#t~ret75; 48#L860true assume 0 != main_~tmp~7; 21#L836true havoc test_#t~nondet76, test_#t~nondet77, test_#t~nondet78, test_#t~nondet79, test_~splverifierCounter~0, test_~tmp~8, test_~tmp___0~2, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~8;havoc test_~tmp___0~2;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 72#L427-1true [2021-08-27 16:16:22,276 INFO L793 eck$LassoCheckResult]: Loop: 72#L427-1true assume !false; 60#L885true assume test_~splverifierCounter~0 < 4; 71#L886true test_~tmp~8 := test_#t~nondet76;havoc test_#t~nondet76; 41#L894true assume !(0 != test_~tmp~8); 63#L894-1true test_~tmp___0~2 := test_#t~nondet77;havoc test_#t~nondet77; 33#L904true assume !(0 != test_~tmp___0~2); 65#L904-1true test_~tmp___2~0 := test_#t~nondet78;havoc test_#t~nondet78; 18#L914true assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 14#L922-1true assume !(0 != ~pumpRunning~0); 52#L500true assume !(0 != ~systemActive~0); 31#L507true havoc __utac_acc__Specification4_spec__1_#t~ret42, __utac_acc__Specification4_spec__1_#t~ret43, __utac_acc__Specification4_spec__1_~tmp~3, __utac_acc__Specification4_spec__1_~tmp___0~0;havoc __utac_acc__Specification4_spec__1_~tmp~3;havoc __utac_acc__Specification4_spec__1_~tmp___0~0;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~9;havoc getWaterLevel_~retValue_acc~9;getWaterLevel_~retValue_acc~9 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~9; 8#L763true __utac_acc__Specification4_spec__1_#t~ret42 := getWaterLevel_#res;__utac_acc__Specification4_spec__1_~tmp~3 := __utac_acc__Specification4_spec__1_#t~ret42;havoc __utac_acc__Specification4_spec__1_#t~ret42; 32#L427true assume !(0 == __utac_acc__Specification4_spec__1_~tmp~3); 72#L427-1true [2021-08-27 16:16:22,280 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 16:16:22,281 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 1 times [2021-08-27 16:16:22,287 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 16:16:22,288 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2075956638] [2021-08-27 16:16:22,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 16:16:22,289 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 16:16:22,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 16:16:22,476 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 16:16:22,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 16:16:22,604 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 16:16:22,613 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 16:16:22,615 INFO L82 PathProgramCache]: Analyzing trace with hash -1672140724, now seen corresponding path program 1 times [2021-08-27 16:16:22,615 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 16:16:22,616 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [744435560] [2021-08-27 16:16:22,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 16:16:22,617 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 16:16:22,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 16:16:22,694 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 16:16:22,694 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 16:16:22,695 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [744435560] [2021-08-27 16:16:22,695 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [744435560] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-27 16:16:22,696 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-27 16:16:22,696 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-27 16:16:22,696 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1176300551] [2021-08-27 16:16:22,705 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-08-27 16:16:22,706 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 16:16:22,719 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-27 16:16:22,720 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-27 16:16:22,722 INFO L87 Difference]: Start difference. First operand has 74 states, 73 states have (on average 1.5205479452054795) internal successors, (111), 73 states have internal predecessors, (111), 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 16:16:22,790 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 16:16:22,791 INFO L93 Difference]: Finished difference Result 142 states and 198 transitions. [2021-08-27 16:16:22,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-27 16:16:22,794 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 142 states and 198 transitions. [2021-08-27 16:16:22,805 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 90 [2021-08-27 16:16:22,809 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 142 states to 128 states and 183 transitions. [2021-08-27 16:16:22,810 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 128 [2021-08-27 16:16:22,811 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 128 [2021-08-27 16:16:22,811 INFO L73 IsDeterministic]: Start isDeterministic. Operand 128 states and 183 transitions. [2021-08-27 16:16:22,812 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-27 16:16:22,812 INFO L681 BuchiCegarLoop]: Abstraction has 128 states and 183 transitions. [2021-08-27 16:16:22,822 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128 states and 183 transitions. [2021-08-27 16:16:22,834 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128 to 126. [2021-08-27 16:16:22,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 126 states, 126 states have (on average 1.4285714285714286) internal successors, (180), 125 states have internal predecessors, (180), 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 16:16:22,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 126 states and 180 transitions. [2021-08-27 16:16:22,837 INFO L704 BuchiCegarLoop]: Abstraction has 126 states and 180 transitions. [2021-08-27 16:16:22,837 INFO L587 BuchiCegarLoop]: Abstraction has 126 states and 180 transitions. [2021-08-27 16:16:22,837 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-08-27 16:16:22,838 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 126 states and 180 transitions. [2021-08-27 16:16:22,839 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 88 [2021-08-27 16:16:22,840 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-27 16:16:22,840 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-27 16:16:22,840 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-08-27 16:16:22,840 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 16:16:22,841 INFO L791 eck$LassoCheckResult]: Stem: 293#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~string49.base, #t~string49.offset := #Ultimate.allocOnStack(13);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string51.base, #t~string51.offset, 1);call write~init~int(110, #t~string51.base, 1 + #t~string51.offset, 1);call write~init~int(0, #t~string51.base, 2 + #t~string51.offset, 1);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string53.base, #t~string53.offset, 1);call write~init~int(102, #t~string53.base, 1 + #t~string53.offset, 1);call write~init~int(102, #t~string53.base, 2 + #t~string53.offset, 1);call write~init~int(0, #t~string53.base, 3 + #t~string53.offset, 1);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string55.base, #t~string55.offset, 1);call write~init~int(80, #t~string55.base, 1 + #t~string55.offset, 1);call write~init~int(117, #t~string55.base, 2 + #t~string55.offset, 1);call write~init~int(109, #t~string55.base, 3 + #t~string55.offset, 1);call write~init~int(112, #t~string55.base, 4 + #t~string55.offset, 1);call write~init~int(58, #t~string55.base, 5 + #t~string55.offset, 1);call write~init~int(0, #t~string55.base, 6 + #t~string55.offset, 1);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string57.base, #t~string57.offset, 1);call write~init~int(110, #t~string57.base, 1 + #t~string57.offset, 1);call write~init~int(0, #t~string57.base, 2 + #t~string57.offset, 1);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string59.base, #t~string59.offset, 1);call write~init~int(102, #t~string59.base, 1 + #t~string59.offset, 1);call write~init~int(102, #t~string59.base, 2 + #t~string59.offset, 1);call write~init~int(0, #t~string59.base, 3 + #t~string59.offset, 1);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string61.base, #t~string61.offset, 1);call write~init~int(32, #t~string61.base, 1 + #t~string61.offset, 1);call write~init~int(0, #t~string61.base, 2 + #t~string61.offset, 1);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string63.base, #t~string63.offset, 1);call write~init~int(0, #t~string63.base, 1 + #t~string63.offset, 1);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(13);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string68.base, #t~string68.offset, 1);call write~init~int(77, #t~string68.base, 1 + #t~string68.offset, 1);call write~init~int(101, #t~string68.base, 2 + #t~string68.offset, 1);call write~init~int(116, #t~string68.base, 3 + #t~string68.offset, 1);call write~init~int(104, #t~string68.base, 4 + #t~string68.offset, 1);call write~init~int(58, #t~string68.base, 5 + #t~string68.offset, 1);call write~init~int(0, #t~string68.base, 6 + #t~string68.offset, 1);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string70.base, #t~string70.offset, 1);call write~init~int(82, #t~string70.base, 1 + #t~string70.offset, 1);call write~init~int(73, #t~string70.base, 2 + #t~string70.offset, 1);call write~init~int(84, #t~string70.base, 3 + #t~string70.offset, 1);call write~init~int(0, #t~string70.base, 4 + #t~string70.offset, 1);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string72.base, #t~string72.offset, 1);call write~init~int(75, #t~string72.base, 1 + #t~string72.offset, 1);call write~init~int(0, #t~string72.base, 2 + #t~string72.offset, 1);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string74.base, #t~string74.offset, 1);call write~init~int(0, #t~string74.base, 1 + #t~string74.offset, 1);~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4; 287#L-1 havoc main_#res;havoc main_#t~ret75, main_~retValue_acc~11, main_~tmp~7;havoc main_~retValue_acc~11;havoc main_~tmp~7; 285#L470 havoc valid_product_#res;havoc valid_product_~retValue_acc~4;havoc valid_product_~retValue_acc~4;valid_product_~retValue_acc~4 := 1;valid_product_#res := valid_product_~retValue_acc~4; 286#L478 main_#t~ret75 := valid_product_#res;main_~tmp~7 := main_#t~ret75;havoc main_#t~ret75; 288#L860 assume 0 != main_~tmp~7; 256#L836 havoc test_#t~nondet76, test_#t~nondet77, test_#t~nondet78, test_#t~nondet79, test_~splverifierCounter~0, test_~tmp~8, test_~tmp___0~2, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~8;havoc test_~tmp___0~2;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 257#L427-1 [2021-08-27 16:16:22,841 INFO L793 eck$LassoCheckResult]: Loop: 257#L427-1 assume !false; 328#L885 assume test_~splverifierCounter~0 < 4; 301#L886 test_~tmp~8 := test_#t~nondet76;havoc test_#t~nondet76; 279#L894 assume !(0 != test_~tmp~8); 281#L894-1 test_~tmp___0~2 := test_#t~nondet77;havoc test_#t~nondet77; 344#L904 assume !(0 != test_~tmp___0~2); 341#L904-1 test_~tmp___2~0 := test_#t~nondet78;havoc test_#t~nondet78; 340#L914 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 251#L922-1 assume !(0 != ~pumpRunning~0); 337#L500 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret45, processEnvironment_~tmp~4;havoc processEnvironment_~tmp~4; 335#L532 assume !(0 != ~pumpRunning~0); 333#L507 havoc __utac_acc__Specification4_spec__1_#t~ret42, __utac_acc__Specification4_spec__1_#t~ret43, __utac_acc__Specification4_spec__1_~tmp~3, __utac_acc__Specification4_spec__1_~tmp___0~0;havoc __utac_acc__Specification4_spec__1_~tmp~3;havoc __utac_acc__Specification4_spec__1_~tmp___0~0;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~9;havoc getWaterLevel_~retValue_acc~9;getWaterLevel_~retValue_acc~9 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~9; 332#L763 __utac_acc__Specification4_spec__1_#t~ret42 := getWaterLevel_#res;__utac_acc__Specification4_spec__1_~tmp~3 := __utac_acc__Specification4_spec__1_#t~ret42;havoc __utac_acc__Specification4_spec__1_#t~ret42; 330#L427 assume !(0 == __utac_acc__Specification4_spec__1_~tmp~3); 257#L427-1 [2021-08-27 16:16:22,841 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 16:16:22,841 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 2 times [2021-08-27 16:16:22,842 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 16:16:22,842 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1583069164] [2021-08-27 16:16:22,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 16:16:22,842 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 16:16:22,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 16:16:22,888 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 16:16:22,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 16:16:22,933 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 16:16:22,933 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 16:16:22,934 INFO L82 PathProgramCache]: Analyzing trace with hash -323747813, now seen corresponding path program 1 times [2021-08-27 16:16:22,934 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 16:16:22,934 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [891814509] [2021-08-27 16:16:22,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 16:16:22,934 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 16:16:22,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 16:16:22,939 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 16:16:22,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 16:16:22,949 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 16:16:22,951 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 16:16:22,951 INFO L82 PathProgramCache]: Analyzing trace with hash 1279291713, now seen corresponding path program 1 times [2021-08-27 16:16:22,951 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 16:16:22,951 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1685727077] [2021-08-27 16:16:22,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 16:16:22,954 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 16:16:23,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 16:16:23,016 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 16:16:23,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 16:16:23,087 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 16:17:01,146 WARN L207 SmtUtils]: Spent 37.81 s on a formula simplification. DAG size of input: 491 DAG size of output: 433 [2021-08-27 16:17:39,347 WARN L207 SmtUtils]: Spent 18.46 s on a formula simplification that was a NOOP. DAG size: 433 [2021-08-27 16:17:39,508 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 27.08 04:17:39 BoogieIcfgContainer [2021-08-27 16:17:39,509 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-08-27 16:17:39,521 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-08-27 16:17:39,522 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-08-27 16:17:39,522 INFO L275 PluginConnector]: Witness Printer initialized [2021-08-27 16:17:39,522 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 04:16:22" (3/4) ... [2021-08-27 16:17:39,524 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2021-08-27 16:17:39,582 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-08-27 16:17:39,582 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-08-27 16:17:39,583 INFO L168 Benchmark]: Toolchain (without parser) took 78763.15 ms. Allocated memory was 65.0 MB in the beginning and 104.9 MB in the end (delta: 39.8 MB). Free memory was 43.1 MB in the beginning and 28.1 MB in the end (delta: 15.0 MB). Peak memory consumption was 52.9 MB. Max. memory is 16.1 GB. [2021-08-27 16:17:39,583 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 65.0 MB. Free memory was 45.2 MB in the beginning and 45.1 MB in the end (delta: 84.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-08-27 16:17:39,584 INFO L168 Benchmark]: CACSL2BoogieTranslator took 421.96 ms. Allocated memory is still 65.0 MB. Free memory was 42.9 MB in the beginning and 40.0 MB in the end (delta: 3.0 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-08-27 16:17:39,584 INFO L168 Benchmark]: Boogie Procedure Inliner took 60.10 ms. Allocated memory is still 65.0 MB. Free memory was 40.0 MB in the beginning and 37.1 MB in the end (delta: 2.9 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-08-27 16:17:39,585 INFO L168 Benchmark]: Boogie Preprocessor took 24.99 ms. Allocated memory is still 65.0 MB. Free memory was 37.1 MB in the beginning and 35.0 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-08-27 16:17:39,585 INFO L168 Benchmark]: RCFGBuilder took 818.04 ms. Allocated memory was 65.0 MB in the beginning and 86.0 MB in the end (delta: 21.0 MB). Free memory was 35.0 MB in the beginning and 63.1 MB in the end (delta: -28.1 MB). Peak memory consumption was 19.7 MB. Max. memory is 16.1 GB. [2021-08-27 16:17:39,586 INFO L168 Benchmark]: BuchiAutomizer took 77358.40 ms. Allocated memory was 86.0 MB in the beginning and 104.9 MB in the end (delta: 18.9 MB). Free memory was 63.1 MB in the beginning and 30.1 MB in the end (delta: 32.9 MB). Peak memory consumption was 66.2 MB. Max. memory is 16.1 GB. [2021-08-27 16:17:39,587 INFO L168 Benchmark]: Witness Printer took 60.52 ms. Allocated memory is still 104.9 MB. Free memory was 30.1 MB in the beginning and 28.1 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-08-27 16:17:39,590 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 65.0 MB. Free memory was 45.2 MB in the beginning and 45.1 MB in the end (delta: 84.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 421.96 ms. Allocated memory is still 65.0 MB. Free memory was 42.9 MB in the beginning and 40.0 MB in the end (delta: 3.0 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 60.10 ms. Allocated memory is still 65.0 MB. Free memory was 40.0 MB in the beginning and 37.1 MB in the end (delta: 2.9 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 24.99 ms. Allocated memory is still 65.0 MB. Free memory was 37.1 MB in the beginning and 35.0 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 818.04 ms. Allocated memory was 65.0 MB in the beginning and 86.0 MB in the end (delta: 21.0 MB). Free memory was 35.0 MB in the beginning and 63.1 MB in the end (delta: -28.1 MB). Peak memory consumption was 19.7 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 77358.40 ms. Allocated memory was 86.0 MB in the beginning and 104.9 MB in the end (delta: 18.9 MB). Free memory was 63.1 MB in the beginning and 30.1 MB in the end (delta: 32.9 MB). Peak memory consumption was 66.2 MB. Max. memory is 16.1 GB. * Witness Printer took 60.52 ms. Allocated memory is still 104.9 MB. Free memory was 30.1 MB in the beginning and 28.1 MB in the end (delta: 2.1 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 126 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 77.2s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 77.0s. 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 15.4ms AutomataMinimizationTime, 1 MinimizatonAttempts, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 126 states and ocurred in iteration 1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 101 SDtfs, 97 SDslu, 89 SDs, 0 SdLazy, 10 SolverSat, 3 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 29.9ms 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: 884]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=1} State at position 1 is {NULL=0, NULL=8428, NULL=0, NULL=1, NULL=0, NULL=8432, NULL=8435, NULL=8424, methaneLevelCritical=0, NULL=8420, NULL=0, NULL=0, NULL=8431, tmp=0, tmp___1=0, NULL=8426, NULL=0, NULL=0, tmp___0=0, NULL=8419, NULL=8427, NULL=8430, cleanupTimeShifts=4, NULL=8436, NULL=8422, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2555047=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6862571d=0, NULL=8429, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@17b77045=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@536c3328=68, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4a855748=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@77607b3d=0, NULL=0, NULL=0, NULL=0, systemActive=1, waterLevel=1, \result=1, NULL=0, NULL=0, NULL=0, NULL=0, NULL=0, retValue_acc=0, NULL=0, NULL=8415, \result=1, head=0, pumpRunning=0, NULL=8416, NULL=8437, \result=0, NULL=8413, NULL=0, NULL=8433, NULL=0, NULL=0, tmp=1, NULL=0, NULL=0, NULL=8434, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7df5edf4=0, retValue_acc=1, NULL=8414, NULL=0, tmp=1, NULL=0, retValue_acc=1, NULL=8438, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1b09e89a=0, tmp___2=68, tmp___0=0, NULL=152, NULL=8417, splverifierCounter=0, NULL=0, NULL=0, NULL=8425, NULL=8423, NULL=8421, head=0, tmp=0, NULL=0, NULL=0, NULL=8418, NULL=0, NULL=0, NULL=8412} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L220] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L493] int pumpRunning = 0; [L494] int systemActive = 1; [L688] int waterLevel = 1; [L689] int methaneLevelCritical = 0; [L777] int cleanupTimeShifts = 4; [L851] int retValue_acc ; [L852] int tmp ; [L474] int retValue_acc ; [L477] retValue_acc = 1 [L478] return (retValue_acc); [L858] tmp = valid_product() [L860] COND TRUE \read(tmp) [L875] int splverifierCounter ; [L876] int tmp ; [L877] int tmp___0 ; [L878] int tmp___1 ; [L879] int tmp___2 ; [L882] splverifierCounter = 0 Loop: [L884] COND TRUE 1 [L886] COND TRUE splverifierCounter < 4 [L892] tmp = __VERIFIER_nondet_int() [L894] COND FALSE !(\read(tmp)) [L902] tmp___0 = __VERIFIER_nondet_int() [L904] COND FALSE !(\read(tmp___0)) [L912] tmp___2 = __VERIFIER_nondet_int() [L914] COND TRUE \read(tmp___2) [L681] systemActive = 1 [L500] COND FALSE !(\read(pumpRunning)) [L507] COND TRUE \read(systemActive) [L529] int tmp ; [L532] COND FALSE !(\read(pumpRunning)) [L420] int tmp ; [L421] int tmp___0 ; [L759] int retValue_acc ; [L762] retValue_acc = waterLevel [L763] return (retValue_acc); [L425] tmp = getWaterLevel() [L427] COND FALSE !(tmp == 0) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2021-08-27 16:17:39,643 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...