./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/minepump_spec4_product20.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_product20.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 f97ed213173bc84e00af4e856bb920ccfd15e1d4 ................................................................................................................................................................................................................................................................................................................................................................................ 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 16:15:18,504 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-27 16:15:18,507 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-27 16:15:18,548 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-08-27 16:15:18,549 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-08-27 16:15:18,553 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-08-27 16:15:18,554 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-08-27 16:15:18,560 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-08-27 16:15:18,562 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-08-27 16:15:18,568 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-08-27 16:15:18,569 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-08-27 16:15:18,574 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-08-27 16:15:18,574 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-27 16:15:18,576 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-27 16:15:18,577 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-27 16:15:18,578 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-27 16:15:18,578 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-27 16:15:18,579 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-27 16:15:18,580 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-27 16:15:18,581 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-27 16:15:18,583 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-27 16:15:18,585 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-27 16:15:18,586 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-27 16:15:18,587 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-27 16:15:18,589 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-08-27 16:15:18,589 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-08-27 16:15:18,589 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-08-27 16:15:18,590 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-08-27 16:15:18,590 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-08-27 16:15:18,591 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-08-27 16:15:18,591 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-08-27 16:15:18,592 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-08-27 16:15:18,593 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-08-27 16:15:18,593 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-08-27 16:15:18,594 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-08-27 16:15:18,594 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-08-27 16:15:18,595 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-08-27 16:15:18,595 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-08-27 16:15:18,595 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-27 16:15:18,596 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-27 16:15:18,600 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-27 16:15:18,604 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-08-27 16:15:18,638 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-27 16:15:18,638 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-27 16:15:18,639 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-27 16:15:18,639 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-27 16:15:18,641 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-27 16:15:18,641 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-27 16:15:18,641 INFO L138 SettingsManager]: * Use SBE=true [2021-08-27 16:15:18,641 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-08-27 16:15:18,641 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-08-27 16:15:18,641 INFO L138 SettingsManager]: * Use old map elimination=false [2021-08-27 16:15:18,642 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-08-27 16:15:18,642 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-08-27 16:15:18,642 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-08-27 16:15:18,642 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-27 16:15:18,643 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-27 16:15:18,643 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-08-27 16:15:18,643 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-27 16:15:18,643 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-27 16:15:18,643 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-27 16:15:18,648 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-08-27 16:15:18,649 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-08-27 16:15:18,649 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-08-27 16:15:18,649 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-27 16:15:18,649 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-27 16:15:18,649 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-08-27 16:15:18,649 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-27 16:15:18,650 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-08-27 16:15:18,650 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-27 16:15:18,650 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-27 16:15:18,650 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-27 16:15:18,650 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-08-27 16:15:18,651 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-08-27 16:15:18,652 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-08-27 16:15:18,652 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f97ed213173bc84e00af4e856bb920ccfd15e1d4 [2021-08-27 16:15:18,945 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-27 16:15:18,970 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-27 16:15:18,972 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-27 16:15:18,973 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-27 16:15:18,974 INFO L275 PluginConnector]: CDTParser initialized [2021-08-27 16:15:18,975 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec4_product20.cil.c [2021-08-27 16:15:19,034 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/830f7c5d6/9aeb8ca2c46b4ad0a8d380781091ca5e/FLAG36f484e9f [2021-08-27 16:15:19,492 INFO L306 CDTParser]: Found 1 translation units. [2021-08-27 16:15:19,494 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec4_product20.cil.c [2021-08-27 16:15:19,511 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/830f7c5d6/9aeb8ca2c46b4ad0a8d380781091ca5e/FLAG36f484e9f [2021-08-27 16:15:19,857 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/830f7c5d6/9aeb8ca2c46b4ad0a8d380781091ca5e [2021-08-27 16:15:19,860 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-27 16:15:19,863 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-08-27 16:15:19,864 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-27 16:15:19,864 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-27 16:15:19,867 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-27 16:15:19,868 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 04:15:19" (1/1) ... [2021-08-27 16:15:19,869 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@20f78517 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:15:19, skipping insertion in model container [2021-08-27 16:15:19,869 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 04:15:19" (1/1) ... [2021-08-27 16:15:19,875 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-27 16:15:19,920 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-27 16:15:20,193 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_product20.cil.c[14037,14050] [2021-08-27 16:15:20,228 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-27 16:15:20,236 INFO L203 MainTranslator]: Completed pre-run [2021-08-27 16:15:20,286 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_product20.cil.c[14037,14050] [2021-08-27 16:15:20,294 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-27 16:15:20,309 INFO L208 MainTranslator]: Completed translation [2021-08-27 16:15:20,310 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:15:20 WrapperNode [2021-08-27 16:15:20,310 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-27 16:15:20,311 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-08-27 16:15:20,311 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-08-27 16:15:20,311 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-08-27 16:15:20,317 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:15:20" (1/1) ... [2021-08-27 16:15:20,332 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:15:20" (1/1) ... [2021-08-27 16:15:20,372 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-08-27 16:15:20,375 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-27 16:15:20,375 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-27 16:15:20,376 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-27 16:15:20,382 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:15:20" (1/1) ... [2021-08-27 16:15:20,383 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:15:20" (1/1) ... [2021-08-27 16:15:20,398 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:15:20" (1/1) ... [2021-08-27 16:15:20,398 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:15:20" (1/1) ... [2021-08-27 16:15:20,405 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:15:20" (1/1) ... [2021-08-27 16:15:20,421 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:15:20" (1/1) ... [2021-08-27 16:15:20,425 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:15:20" (1/1) ... [2021-08-27 16:15:20,431 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-27 16:15:20,432 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-27 16:15:20,433 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-27 16:15:20,434 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-27 16:15:20,435 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:15:20" (1/1) ... [2021-08-27 16:15:20,441 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 16:15:20,447 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 16:15:20,462 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 16:15:20,492 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 16:15:20,509 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-08-27 16:15:20,509 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-08-27 16:15:20,509 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-27 16:15:20,509 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-27 16:15:21,234 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-27 16:15:21,234 INFO L299 CfgBuilder]: Removed 102 assume(true) statements. [2021-08-27 16:15:21,236 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 04:15:21 BoogieIcfgContainer [2021-08-27 16:15:21,236 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-27 16:15:21,237 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-08-27 16:15:21,237 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-08-27 16:15:21,240 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-08-27 16:15:21,240 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-08-27 16:15:21,241 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 27.08 04:15:19" (1/3) ... [2021-08-27 16:15:21,242 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5ae87026 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 27.08 04:15:21, skipping insertion in model container [2021-08-27 16:15:21,242 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-08-27 16:15:21,242 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:15:20" (2/3) ... [2021-08-27 16:15:21,242 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5ae87026 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 27.08 04:15:21, skipping insertion in model container [2021-08-27 16:15:21,242 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-08-27 16:15:21,243 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 04:15:21" (3/3) ... [2021-08-27 16:15:21,244 INFO L389 chiAutomizerObserver]: Analyzing ICFG minepump_spec4_product20.cil.c [2021-08-27 16:15:21,318 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-08-27 16:15:21,318 INFO L360 BuchiCegarLoop]: Hoare is false [2021-08-27 16:15:21,319 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-08-27 16:15:21,319 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-08-27 16:15:21,319 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-08-27 16:15:21,319 INFO L364 BuchiCegarLoop]: Difference is false [2021-08-27 16:15:21,319 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-08-27 16:15:21,319 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-08-27 16:15:21,335 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 16:15:21,359 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 47 [2021-08-27 16:15:21,359 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-27 16:15:21,359 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-27 16:15:21,367 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-08-27 16:15:21,367 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 16:15:21,367 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-08-27 16:15:21,369 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 16:15:21,381 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 47 [2021-08-27 16:15:21,381 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-27 16:15:21,382 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-27 16:15:21,383 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-08-27 16:15:21,383 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 16:15:21,391 INFO L791 eck$LassoCheckResult]: Stem: 58#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~string9.base, #t~string9.offset := #Ultimate.allocOnStack(13);call #t~string11.base, #t~string11.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string11.base, #t~string11.offset, 1);call write~init~int(77, #t~string11.base, 1 + #t~string11.offset, 1);call write~init~int(101, #t~string11.base, 2 + #t~string11.offset, 1);call write~init~int(116, #t~string11.base, 3 + #t~string11.offset, 1);call write~init~int(104, #t~string11.base, 4 + #t~string11.offset, 1);call write~init~int(58, #t~string11.base, 5 + #t~string11.offset, 1);call write~init~int(0, #t~string11.base, 6 + #t~string11.offset, 1);call #t~string13.base, #t~string13.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string13.base, #t~string13.offset, 1);call write~init~int(82, #t~string13.base, 1 + #t~string13.offset, 1);call write~init~int(73, #t~string13.base, 2 + #t~string13.offset, 1);call write~init~int(84, #t~string13.base, 3 + #t~string13.offset, 1);call write~init~int(0, #t~string13.base, 4 + #t~string13.offset, 1);call #t~string15.base, #t~string15.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string15.base, #t~string15.offset, 1);call write~init~int(75, #t~string15.base, 1 + #t~string15.offset, 1);call write~init~int(0, #t~string15.base, 2 + #t~string15.offset, 1);call #t~string17.base, #t~string17.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string17.base, #t~string17.offset, 1);call write~init~int(0, #t~string17.base, 1 + #t~string17.offset, 1);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(21);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(30);call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(9);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(21);call #t~string46.base, #t~string46.offset := #Ultimate.allocOnStack(30);call #t~string47.base, #t~string47.offset := #Ultimate.allocOnStack(9);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(25);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(30);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(9);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(25);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(13);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string61.base, #t~string61.offset, 1);call write~init~int(110, #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(4);call write~init~int(79, #t~string63.base, #t~string63.offset, 1);call write~init~int(102, #t~string63.base, 1 + #t~string63.offset, 1);call write~init~int(102, #t~string63.base, 2 + #t~string63.offset, 1);call write~init~int(0, #t~string63.base, 3 + #t~string63.offset, 1);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string65.base, #t~string65.offset, 1);call write~init~int(80, #t~string65.base, 1 + #t~string65.offset, 1);call write~init~int(117, #t~string65.base, 2 + #t~string65.offset, 1);call write~init~int(109, #t~string65.base, 3 + #t~string65.offset, 1);call write~init~int(112, #t~string65.base, 4 + #t~string65.offset, 1);call write~init~int(58, #t~string65.base, 5 + #t~string65.offset, 1);call write~init~int(0, #t~string65.base, 6 + #t~string65.offset, 1);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string67.base, #t~string67.offset, 1);call write~init~int(110, #t~string67.base, 1 + #t~string67.offset, 1);call write~init~int(0, #t~string67.base, 2 + #t~string67.offset, 1);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string69.base, #t~string69.offset, 1);call write~init~int(102, #t~string69.base, 1 + #t~string69.offset, 1);call write~init~int(102, #t~string69.base, 2 + #t~string69.offset, 1);call write~init~int(0, #t~string69.base, 3 + #t~string69.offset, 1);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string71.base, #t~string71.offset, 1);call write~init~int(32, #t~string71.base, 1 + #t~string71.offset, 1);call write~init~int(0, #t~string71.base, 2 + #t~string71.offset, 1);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string73.base, #t~string73.offset, 1);call write~init~int(0, #t~string73.base, 1 + #t~string73.offset, 1);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1; 45#L-1true havoc main_#res;havoc main_#t~ret18, main_~retValue_acc~5, main_~tmp~0;havoc main_~retValue_acc~5;havoc main_~tmp~0; 57#L67true havoc valid_product_#res;havoc valid_product_~retValue_acc~1;havoc valid_product_~retValue_acc~1;valid_product_~retValue_acc~1 := 1;valid_product_#res := valid_product_~retValue_acc~1; 67#L75true main_#t~ret18 := valid_product_#res;main_~tmp~0 := main_#t~ret18;havoc main_#t~ret18; 74#L261true assume 0 != main_~tmp~0; 40#L237true havoc test_#t~nondet75, test_#t~nondet76, test_#t~nondet77, test_#t~nondet78, test_~splverifierCounter~0, test_~tmp~7, test_~tmp___0~2, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~7;havoc test_~tmp___0~2;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 28#L659-1true [2021-08-27 16:15:21,391 INFO L793 eck$LassoCheckResult]: Loop: 28#L659-1true assume !false; 48#L867true assume test_~splverifierCounter~0 < 4; 36#L868true test_~tmp~7 := test_#t~nondet75;havoc test_#t~nondet75; 29#L876true assume !(0 != test_~tmp~7); 30#L876-1true test_~tmp___0~2 := test_#t~nondet76;havoc test_#t~nondet76; 71#L886true assume !(0 != test_~tmp___0~2); 22#L886-1true test_~tmp___2~0 := test_#t~nondet77;havoc test_#t~nondet77; 11#L896true assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 66#L904-1true assume !(0 != ~pumpRunning~0); 38#L688true assume !(0 != ~systemActive~0); 68#L695true havoc __utac_acc__Specification4_spec__1_#t~ret54, __utac_acc__Specification4_spec__1_#t~ret55, __utac_acc__Specification4_spec__1_~tmp~4, __utac_acc__Specification4_spec__1_~tmp___0~0;havoc __utac_acc__Specification4_spec__1_~tmp~4;havoc __utac_acc__Specification4_spec__1_~tmp___0~0;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~3;havoc getWaterLevel_~retValue_acc~3;getWaterLevel_~retValue_acc~3 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~3; 39#L162true __utac_acc__Specification4_spec__1_#t~ret54 := getWaterLevel_#res;__utac_acc__Specification4_spec__1_~tmp~4 := __utac_acc__Specification4_spec__1_#t~ret54;havoc __utac_acc__Specification4_spec__1_#t~ret54; 35#L659true assume !(0 == __utac_acc__Specification4_spec__1_~tmp~4); 28#L659-1true [2021-08-27 16:15:21,396 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 16:15:21,396 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 1 times [2021-08-27 16:15:21,405 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 16:15:21,405 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1827308261] [2021-08-27 16:15:21,406 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 16:15:21,406 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 16:15:21,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 16:15:21,585 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 16:15:21,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 16:15:21,681 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 16:15:21,688 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 16:15:21,688 INFO L82 PathProgramCache]: Analyzing trace with hash -1672140724, now seen corresponding path program 1 times [2021-08-27 16:15:21,688 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 16:15:21,688 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1913779967] [2021-08-27 16:15:21,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 16:15:21,689 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 16:15:21,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 16:15:21,762 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 16:15:21,763 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 16:15:21,763 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1913779967] [2021-08-27 16:15:21,764 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1913779967] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-27 16:15:21,764 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-27 16:15:21,764 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-27 16:15:21,764 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1835231845] [2021-08-27 16:15:21,770 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-08-27 16:15:21,771 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 16:15:21,785 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-27 16:15:21,786 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-27 16:15:21,788 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 16:15:21,861 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 16:15:21,861 INFO L93 Difference]: Finished difference Result 142 states and 198 transitions. [2021-08-27 16:15:21,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-27 16:15:21,863 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 142 states and 198 transitions. [2021-08-27 16:15:21,871 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 90 [2021-08-27 16:15:21,877 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 142 states to 128 states and 183 transitions. [2021-08-27 16:15:21,878 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 128 [2021-08-27 16:15:21,880 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 128 [2021-08-27 16:15:21,880 INFO L73 IsDeterministic]: Start isDeterministic. Operand 128 states and 183 transitions. [2021-08-27 16:15:21,889 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-27 16:15:21,890 INFO L681 BuchiCegarLoop]: Abstraction has 128 states and 183 transitions. [2021-08-27 16:15:21,900 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128 states and 183 transitions. [2021-08-27 16:15:21,913 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128 to 126. [2021-08-27 16:15:21,914 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 16:15:21,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 126 states and 180 transitions. [2021-08-27 16:15:21,915 INFO L704 BuchiCegarLoop]: Abstraction has 126 states and 180 transitions. [2021-08-27 16:15:21,915 INFO L587 BuchiCegarLoop]: Abstraction has 126 states and 180 transitions. [2021-08-27 16:15:21,916 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-08-27 16:15:21,916 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 126 states and 180 transitions. [2021-08-27 16:15:21,917 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 88 [2021-08-27 16:15:21,917 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-27 16:15:21,917 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-27 16:15:21,918 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-08-27 16:15:21,918 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 16:15:21,918 INFO L791 eck$LassoCheckResult]: Stem: 294#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~string9.base, #t~string9.offset := #Ultimate.allocOnStack(13);call #t~string11.base, #t~string11.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string11.base, #t~string11.offset, 1);call write~init~int(77, #t~string11.base, 1 + #t~string11.offset, 1);call write~init~int(101, #t~string11.base, 2 + #t~string11.offset, 1);call write~init~int(116, #t~string11.base, 3 + #t~string11.offset, 1);call write~init~int(104, #t~string11.base, 4 + #t~string11.offset, 1);call write~init~int(58, #t~string11.base, 5 + #t~string11.offset, 1);call write~init~int(0, #t~string11.base, 6 + #t~string11.offset, 1);call #t~string13.base, #t~string13.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string13.base, #t~string13.offset, 1);call write~init~int(82, #t~string13.base, 1 + #t~string13.offset, 1);call write~init~int(73, #t~string13.base, 2 + #t~string13.offset, 1);call write~init~int(84, #t~string13.base, 3 + #t~string13.offset, 1);call write~init~int(0, #t~string13.base, 4 + #t~string13.offset, 1);call #t~string15.base, #t~string15.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string15.base, #t~string15.offset, 1);call write~init~int(75, #t~string15.base, 1 + #t~string15.offset, 1);call write~init~int(0, #t~string15.base, 2 + #t~string15.offset, 1);call #t~string17.base, #t~string17.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string17.base, #t~string17.offset, 1);call write~init~int(0, #t~string17.base, 1 + #t~string17.offset, 1);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(21);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(30);call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(9);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(21);call #t~string46.base, #t~string46.offset := #Ultimate.allocOnStack(30);call #t~string47.base, #t~string47.offset := #Ultimate.allocOnStack(9);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(25);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(30);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(9);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(25);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(13);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string61.base, #t~string61.offset, 1);call write~init~int(110, #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(4);call write~init~int(79, #t~string63.base, #t~string63.offset, 1);call write~init~int(102, #t~string63.base, 1 + #t~string63.offset, 1);call write~init~int(102, #t~string63.base, 2 + #t~string63.offset, 1);call write~init~int(0, #t~string63.base, 3 + #t~string63.offset, 1);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string65.base, #t~string65.offset, 1);call write~init~int(80, #t~string65.base, 1 + #t~string65.offset, 1);call write~init~int(117, #t~string65.base, 2 + #t~string65.offset, 1);call write~init~int(109, #t~string65.base, 3 + #t~string65.offset, 1);call write~init~int(112, #t~string65.base, 4 + #t~string65.offset, 1);call write~init~int(58, #t~string65.base, 5 + #t~string65.offset, 1);call write~init~int(0, #t~string65.base, 6 + #t~string65.offset, 1);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string67.base, #t~string67.offset, 1);call write~init~int(110, #t~string67.base, 1 + #t~string67.offset, 1);call write~init~int(0, #t~string67.base, 2 + #t~string67.offset, 1);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string69.base, #t~string69.offset, 1);call write~init~int(102, #t~string69.base, 1 + #t~string69.offset, 1);call write~init~int(102, #t~string69.base, 2 + #t~string69.offset, 1);call write~init~int(0, #t~string69.base, 3 + #t~string69.offset, 1);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string71.base, #t~string71.offset, 1);call write~init~int(32, #t~string71.base, 1 + #t~string71.offset, 1);call write~init~int(0, #t~string71.base, 2 + #t~string71.offset, 1);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string73.base, #t~string73.offset, 1);call write~init~int(0, #t~string73.base, 1 + #t~string73.offset, 1);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1; 286#L-1 havoc main_#res;havoc main_#t~ret18, main_~retValue_acc~5, main_~tmp~0;havoc main_~retValue_acc~5;havoc main_~tmp~0; 287#L67 havoc valid_product_#res;havoc valid_product_~retValue_acc~1;havoc valid_product_~retValue_acc~1;valid_product_~retValue_acc~1 := 1;valid_product_#res := valid_product_~retValue_acc~1; 293#L75 main_#t~ret18 := valid_product_#res;main_~tmp~0 := main_#t~ret18;havoc main_#t~ret18; 298#L261 assume 0 != main_~tmp~0; 278#L237 havoc test_#t~nondet75, test_#t~nondet76, test_#t~nondet77, test_#t~nondet78, test_~splverifierCounter~0, test_~tmp~7, test_~tmp___0~2, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~7;havoc test_~tmp___0~2;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 279#L659-1 [2021-08-27 16:15:21,918 INFO L793 eck$LassoCheckResult]: Loop: 279#L659-1 assume !false; 309#L867 assume test_~splverifierCounter~0 < 4; 308#L868 test_~tmp~7 := test_#t~nondet75;havoc test_#t~nondet75; 307#L876 assume !(0 != test_~tmp~7); 305#L876-1 test_~tmp___0~2 := test_#t~nondet76;havoc test_#t~nondet76; 304#L886 assume !(0 != test_~tmp___0~2); 302#L886-1 test_~tmp___2~0 := test_#t~nondet77;havoc test_#t~nondet77; 239#L896 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 240#L904-1 assume !(0 != ~pumpRunning~0); 275#L688 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret56, processEnvironment_~tmp~5;havoc processEnvironment_~tmp~5; 276#L720 assume !(0 != ~pumpRunning~0); 315#L695 havoc __utac_acc__Specification4_spec__1_#t~ret54, __utac_acc__Specification4_spec__1_#t~ret55, __utac_acc__Specification4_spec__1_~tmp~4, __utac_acc__Specification4_spec__1_~tmp___0~0;havoc __utac_acc__Specification4_spec__1_~tmp~4;havoc __utac_acc__Specification4_spec__1_~tmp___0~0;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~3;havoc getWaterLevel_~retValue_acc~3;getWaterLevel_~retValue_acc~3 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~3; 314#L162 __utac_acc__Specification4_spec__1_#t~ret54 := getWaterLevel_#res;__utac_acc__Specification4_spec__1_~tmp~4 := __utac_acc__Specification4_spec__1_#t~ret54;havoc __utac_acc__Specification4_spec__1_#t~ret54; 312#L659 assume !(0 == __utac_acc__Specification4_spec__1_~tmp~4); 279#L659-1 [2021-08-27 16:15:21,919 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 16:15:21,919 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 2 times [2021-08-27 16:15:21,919 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 16:15:21,919 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1538595058] [2021-08-27 16:15:21,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 16:15:21,920 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 16:15:21,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 16:15:21,968 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 16:15:22,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 16:15:22,047 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 16:15:22,048 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 16:15:22,048 INFO L82 PathProgramCache]: Analyzing trace with hash -323747813, now seen corresponding path program 1 times [2021-08-27 16:15:22,048 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 16:15:22,049 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1175383168] [2021-08-27 16:15:22,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 16:15:22,049 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 16:15:22,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 16:15:22,056 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 16:15:22,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 16:15:22,073 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 16:15:22,076 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 16:15:22,077 INFO L82 PathProgramCache]: Analyzing trace with hash 1279291713, now seen corresponding path program 1 times [2021-08-27 16:15:22,077 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 16:15:22,077 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [880328918] [2021-08-27 16:15:22,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 16:15:22,079 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 16:15:22,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 16:15:22,139 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 16:15:22,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 16:15:22,211 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 16:16:00,673 WARN L207 SmtUtils]: Spent 38.32 s on a formula simplification. DAG size of input: 491 DAG size of output: 433 [2021-08-27 16:16:39,992 WARN L207 SmtUtils]: Spent 18.79 s on a formula simplification that was a NOOP. DAG size: 433 [2021-08-27 16:16:40,089 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 27.08 04:16:40 BoogieIcfgContainer [2021-08-27 16:16:40,090 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-08-27 16:16:40,090 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-08-27 16:16:40,090 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-08-27 16:16:40,091 INFO L275 PluginConnector]: Witness Printer initialized [2021-08-27 16:16:40,091 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 04:15:21" (3/4) ... [2021-08-27 16:16:40,093 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2021-08-27 16:16:40,124 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-08-27 16:16:40,125 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-08-27 16:16:40,126 INFO L168 Benchmark]: Toolchain (without parser) took 80262.80 ms. Allocated memory was 54.5 MB in the beginning and 81.8 MB in the end (delta: 27.3 MB). Free memory was 30.4 MB in the beginning and 51.4 MB in the end (delta: -21.0 MB). Peak memory consumption was 7.2 MB. Max. memory is 16.1 GB. [2021-08-27 16:16:40,126 INFO L168 Benchmark]: CDTParser took 0.13 ms. Allocated memory is still 54.5 MB. Free memory was 36.5 MB in the beginning and 36.5 MB in the end (delta: 38.3 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-08-27 16:16:40,126 INFO L168 Benchmark]: CACSL2BoogieTranslator took 446.35 ms. Allocated memory was 54.5 MB in the beginning and 67.1 MB in the end (delta: 12.6 MB). Free memory was 30.2 MB in the beginning and 43.8 MB in the end (delta: -13.5 MB). Peak memory consumption was 7.5 MB. Max. memory is 16.1 GB. [2021-08-27 16:16:40,127 INFO L168 Benchmark]: Boogie Procedure Inliner took 63.42 ms. Allocated memory is still 67.1 MB. Free memory was 43.5 MB in the beginning and 40.7 MB in the end (delta: 2.9 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-08-27 16:16:40,127 INFO L168 Benchmark]: Boogie Preprocessor took 56.39 ms. Allocated memory is still 67.1 MB. Free memory was 40.7 MB in the beginning and 38.8 MB in the end (delta: 1.9 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-08-27 16:16:40,127 INFO L168 Benchmark]: RCFGBuilder took 803.99 ms. Allocated memory is still 67.1 MB. Free memory was 38.6 MB in the beginning and 42.9 MB in the end (delta: -4.3 MB). Peak memory consumption was 15.5 MB. Max. memory is 16.1 GB. [2021-08-27 16:16:40,128 INFO L168 Benchmark]: BuchiAutomizer took 78852.53 ms. Allocated memory was 67.1 MB in the beginning and 81.8 MB in the end (delta: 14.7 MB). Free memory was 42.9 MB in the beginning and 53.5 MB in the end (delta: -10.7 MB). Peak memory consumption was 45.0 MB. Max. memory is 16.1 GB. [2021-08-27 16:16:40,128 INFO L168 Benchmark]: Witness Printer took 34.63 ms. Allocated memory is still 81.8 MB. Free memory was 53.5 MB in the beginning and 51.4 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-08-27 16:16:40,130 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13 ms. Allocated memory is still 54.5 MB. Free memory was 36.5 MB in the beginning and 36.5 MB in the end (delta: 38.3 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 446.35 ms. Allocated memory was 54.5 MB in the beginning and 67.1 MB in the end (delta: 12.6 MB). Free memory was 30.2 MB in the beginning and 43.8 MB in the end (delta: -13.5 MB). Peak memory consumption was 7.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 63.42 ms. Allocated memory is still 67.1 MB. Free memory was 43.5 MB in the beginning and 40.7 MB in the end (delta: 2.9 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 56.39 ms. Allocated memory is still 67.1 MB. Free memory was 40.7 MB in the beginning and 38.8 MB in the end (delta: 1.9 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 803.99 ms. Allocated memory is still 67.1 MB. Free memory was 38.6 MB in the beginning and 42.9 MB in the end (delta: -4.3 MB). Peak memory consumption was 15.5 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 78852.53 ms. Allocated memory was 67.1 MB in the beginning and 81.8 MB in the end (delta: 14.7 MB). Free memory was 42.9 MB in the beginning and 53.5 MB in the end (delta: -10.7 MB). Peak memory consumption was 45.0 MB. Max. memory is 16.1 GB. * Witness Printer took 34.63 ms. Allocated memory is still 81.8 MB. Free memory was 53.5 MB in the beginning and 51.4 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 78.7s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 78.5s. 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 15.9ms 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, 22.9ms 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: 866]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=28673} State at position 1 is {NULL=28685, NULL=0, NULL=0, NULL=0, NULL=0, NULL=28673, NULL=28690, NULL=0, NULL=28693, NULL=0, retValue_acc=0, NULL=0, NULL=28679, NULL=28675, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@53706e8f=0, NULL=28687, methaneLevelCritical=0, NULL=28686, NULL=0, NULL=0, NULL=28696, tmp=0, NULL=0, tmp___1=0, NULL=0, NULL=0, tmp___0=0, NULL=28684, cleanupTimeShifts=4, NULL=28697, NULL=28691, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@554c131e=0, NULL=28694, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5d713227=70, NULL=0, systemActive=1, waterLevel=1, NULL=28682, \result=1, NULL=0, NULL=0, NULL=28700, NULL=0, retValue_acc=1, NULL=28689, \result=1, head=0, pumpRunning=0, tmp=1, NULL=28683, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@504b4aae=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@25a67dc5=0, NULL=0, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@17b338e9=0, NULL=28695, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@46a23a9f=0, NULL=28692, NULL=28676, NULL=0, tmp=1, NULL=0, NULL=28699, retValue_acc=1, tmp___2=70, tmp___0=0, splverifierCounter=0, NULL=0, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5d39928b=0, NULL=28701, NULL=28698, NULL=28688, NULL=28677, head=0, tmp=0, NULL=0, NULL=0, NULL=28678, NULL=0, NULL=0, NULL=28674, NULL=0, NULL=28680, NULL=28681} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L87] int waterLevel = 1; [L88] int methaneLevelCritical = 0; [L176] int cleanupTimeShifts = 4; [L444] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L681] int pumpRunning = 0; [L682] int systemActive = 1; [L252] int retValue_acc ; [L253] int tmp ; [L71] int retValue_acc ; [L74] retValue_acc = 1 [L75] return (retValue_acc); [L259] tmp = valid_product() [L261] COND TRUE \read(tmp) [L857] int splverifierCounter ; [L858] int tmp ; [L859] int tmp___0 ; [L860] int tmp___1 ; [L861] int tmp___2 ; [L864] splverifierCounter = 0 Loop: [L866] COND TRUE 1 [L868] COND TRUE splverifierCounter < 4 [L874] tmp = __VERIFIER_nondet_int() [L876] COND FALSE !(\read(tmp)) [L884] tmp___0 = __VERIFIER_nondet_int() [L886] COND FALSE !(\read(tmp___0)) [L894] tmp___2 = __VERIFIER_nondet_int() [L896] COND TRUE \read(tmp___2) [L851] systemActive = 1 [L688] COND FALSE !(\read(pumpRunning)) [L695] COND TRUE \read(systemActive) [L717] int tmp ; [L720] COND FALSE !(\read(pumpRunning)) [L652] int tmp ; [L653] int tmp___0 ; [L158] int retValue_acc ; [L161] retValue_acc = waterLevel [L162] return (retValue_acc); [L657] tmp = getWaterLevel() [L659] COND FALSE !(tmp == 0) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2021-08-27 16:16:40,179 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...