./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/minepump_spec4_product25.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_product25.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 9adf580d787f62224e97e4e19700baa564f81557 ........................................................................................................................................................................................................................................................................................................................................................................................ 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 16:16:13,520 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-27 16:16:13,522 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-27 16:16:13,548 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-08-27 16:16:13,549 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-08-27 16:16:13,557 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-08-27 16:16:13,560 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-08-27 16:16:13,566 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-08-27 16:16:13,568 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-08-27 16:16:13,572 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-08-27 16:16:13,573 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-08-27 16:16:13,574 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-08-27 16:16:13,576 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-27 16:16:13,577 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-27 16:16:13,578 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-27 16:16:13,579 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-27 16:16:13,580 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-27 16:16:13,580 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-27 16:16:13,582 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-27 16:16:13,583 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-27 16:16:13,585 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-27 16:16:13,586 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-27 16:16:13,587 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-27 16:16:13,587 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-27 16:16:13,590 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-08-27 16:16:13,590 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-08-27 16:16:13,590 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-08-27 16:16:13,591 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-08-27 16:16:13,591 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-08-27 16:16:13,592 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-08-27 16:16:13,592 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-08-27 16:16:13,593 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-08-27 16:16:13,593 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-08-27 16:16:13,594 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-08-27 16:16:13,595 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-08-27 16:16:13,595 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-08-27 16:16:13,596 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-08-27 16:16:13,596 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-08-27 16:16:13,596 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-27 16:16:13,597 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-27 16:16:13,598 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-27 16:16:13,599 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-08-27 16:16:13,622 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-27 16:16:13,622 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-27 16:16:13,623 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-27 16:16:13,624 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-27 16:16:13,625 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-27 16:16:13,626 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-27 16:16:13,626 INFO L138 SettingsManager]: * Use SBE=true [2021-08-27 16:16:13,626 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-08-27 16:16:13,627 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-08-27 16:16:13,627 INFO L138 SettingsManager]: * Use old map elimination=false [2021-08-27 16:16:13,628 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-08-27 16:16:13,628 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-08-27 16:16:13,628 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-08-27 16:16:13,628 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-27 16:16:13,628 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-27 16:16:13,629 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-08-27 16:16:13,629 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-27 16:16:13,629 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-27 16:16:13,629 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-27 16:16:13,634 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-08-27 16:16:13,634 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-08-27 16:16:13,635 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-08-27 16:16:13,635 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-27 16:16:13,635 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-27 16:16:13,635 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-08-27 16:16:13,635 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-27 16:16:13,636 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-08-27 16:16:13,636 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-27 16:16:13,636 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-27 16:16:13,636 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-27 16:16:13,636 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-08-27 16:16:13,637 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-08-27 16:16:13,638 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-08-27 16:16:13,638 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9adf580d787f62224e97e4e19700baa564f81557 [2021-08-27 16:16:13,954 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-27 16:16:13,971 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-27 16:16:13,973 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-27 16:16:13,974 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-27 16:16:13,974 INFO L275 PluginConnector]: CDTParser initialized [2021-08-27 16:16:13,975 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec4_product25.cil.c [2021-08-27 16:16:14,030 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0be850b3e/b675bc51da1a4332a63923975781d8b9/FLAG224bb78cd [2021-08-27 16:16:14,531 INFO L306 CDTParser]: Found 1 translation units. [2021-08-27 16:16:14,531 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec4_product25.cil.c [2021-08-27 16:16:14,551 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0be850b3e/b675bc51da1a4332a63923975781d8b9/FLAG224bb78cd [2021-08-27 16:16:14,863 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0be850b3e/b675bc51da1a4332a63923975781d8b9 [2021-08-27 16:16:14,865 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-27 16:16:14,867 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-08-27 16:16:14,868 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-27 16:16:14,868 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-27 16:16:14,871 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-27 16:16:14,872 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 04:16:14" (1/1) ... [2021-08-27 16:16:14,873 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@540c4fc1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:16:14, skipping insertion in model container [2021-08-27 16:16:14,873 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 04:16:14" (1/1) ... [2021-08-27 16:16:14,879 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-27 16:16:14,921 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-27 16:16:15,032 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_product25.cil.c[1281,1294] [2021-08-27 16:16:15,144 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-27 16:16:15,154 INFO L203 MainTranslator]: Completed pre-run [2021-08-27 16:16:15,178 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_product25.cil.c[1281,1294] [2021-08-27 16:16:15,242 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-27 16:16:15,265 INFO L208 MainTranslator]: Completed translation [2021-08-27 16:16:15,266 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:16:15 WrapperNode [2021-08-27 16:16:15,266 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-27 16:16:15,267 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-08-27 16:16:15,267 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-08-27 16:16:15,267 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-08-27 16:16:15,274 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:16:15" (1/1) ... [2021-08-27 16:16:15,297 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:16:15" (1/1) ... [2021-08-27 16:16:15,344 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-08-27 16:16:15,346 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-27 16:16:15,347 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-27 16:16:15,347 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-27 16:16:15,354 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:16:15" (1/1) ... [2021-08-27 16:16:15,355 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:16:15" (1/1) ... [2021-08-27 16:16:15,361 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:16:15" (1/1) ... [2021-08-27 16:16:15,361 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:16:15" (1/1) ... [2021-08-27 16:16:15,368 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:16:15" (1/1) ... [2021-08-27 16:16:15,388 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:16:15" (1/1) ... [2021-08-27 16:16:15,390 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:16:15" (1/1) ... [2021-08-27 16:16:15,393 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-27 16:16:15,394 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-27 16:16:15,395 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-27 16:16:15,395 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-27 16:16:15,396 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:16:15" (1/1) ... [2021-08-27 16:16:15,413 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 16:16:15,420 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 16:16:15,437 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 16:16:15,440 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 16:16:15,472 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-08-27 16:16:15,472 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-08-27 16:16:15,473 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-27 16:16:15,473 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-27 16:16:16,235 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-27 16:16:16,236 INFO L299 CfgBuilder]: Removed 96 assume(true) statements. [2021-08-27 16:16:16,238 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 04:16:16 BoogieIcfgContainer [2021-08-27 16:16:16,238 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-27 16:16:16,239 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-08-27 16:16:16,239 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-08-27 16:16:16,247 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-08-27 16:16:16,248 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-08-27 16:16:16,249 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 27.08 04:16:14" (1/3) ... [2021-08-27 16:16:16,250 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@79c87a24 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 27.08 04:16:16, skipping insertion in model container [2021-08-27 16:16:16,250 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-08-27 16:16:16,250 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:16:15" (2/3) ... [2021-08-27 16:16:16,250 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@79c87a24 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 27.08 04:16:16, skipping insertion in model container [2021-08-27 16:16:16,250 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-08-27 16:16:16,251 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 04:16:16" (3/3) ... [2021-08-27 16:16:16,252 INFO L389 chiAutomizerObserver]: Analyzing ICFG minepump_spec4_product25.cil.c [2021-08-27 16:16:16,292 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-08-27 16:16:16,292 INFO L360 BuchiCegarLoop]: Hoare is false [2021-08-27 16:16:16,292 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-08-27 16:16:16,292 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-08-27 16:16:16,293 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-08-27 16:16:16,293 INFO L364 BuchiCegarLoop]: Difference is false [2021-08-27 16:16:16,293 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-08-27 16:16:16,293 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-08-27 16:16:16,310 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 72 states, 71 states have (on average 1.5211267605633803) internal successors, (108), 71 states have internal predecessors, (108), 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 16:16:16,327 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 45 [2021-08-27 16:16:16,327 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-27 16:16:16,327 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-27 16:16:16,332 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-08-27 16:16:16,332 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 16:16:16,333 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-08-27 16:16:16,333 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 72 states, 71 states have (on average 1.5211267605633803) internal successors, (108), 71 states have internal predecessors, (108), 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 16:16:16,345 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 45 [2021-08-27 16:16:16,346 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-27 16:16:16,346 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-27 16:16:16,347 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-08-27 16:16:16,347 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 16:16:16,357 INFO L791 eck$LassoCheckResult]: Stem: 53#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~string15.base, #t~string15.offset := #Ultimate.allocOnStack(13);call #t~string17.base, #t~string17.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string17.base, #t~string17.offset, 1);call write~init~int(110, #t~string17.base, 1 + #t~string17.offset, 1);call write~init~int(0, #t~string17.base, 2 + #t~string17.offset, 1);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string19.base, #t~string19.offset, 1);call write~init~int(102, #t~string19.base, 1 + #t~string19.offset, 1);call write~init~int(102, #t~string19.base, 2 + #t~string19.offset, 1);call write~init~int(0, #t~string19.base, 3 + #t~string19.offset, 1);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string21.base, #t~string21.offset, 1);call write~init~int(80, #t~string21.base, 1 + #t~string21.offset, 1);call write~init~int(117, #t~string21.base, 2 + #t~string21.offset, 1);call write~init~int(109, #t~string21.base, 3 + #t~string21.offset, 1);call write~init~int(112, #t~string21.base, 4 + #t~string21.offset, 1);call write~init~int(58, #t~string21.base, 5 + #t~string21.offset, 1);call write~init~int(0, #t~string21.base, 6 + #t~string21.offset, 1);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string23.base, #t~string23.offset, 1);call write~init~int(110, #t~string23.base, 1 + #t~string23.offset, 1);call write~init~int(0, #t~string23.base, 2 + #t~string23.offset, 1);call #t~string25.base, #t~string25.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string25.base, #t~string25.offset, 1);call write~init~int(102, #t~string25.base, 1 + #t~string25.offset, 1);call write~init~int(102, #t~string25.base, 2 + #t~string25.offset, 1);call write~init~int(0, #t~string25.base, 3 + #t~string25.offset, 1);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string27.base, #t~string27.offset, 1);call write~init~int(32, #t~string27.base, 1 + #t~string27.offset, 1);call write~init~int(0, #t~string27.base, 2 + #t~string27.offset, 1);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string29.base, #t~string29.offset, 1);call write~init~int(0, #t~string29.base, 1 + #t~string29.offset, 1);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(13);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string37.base, #t~string37.offset, 1);call write~init~int(77, #t~string37.base, 1 + #t~string37.offset, 1);call write~init~int(101, #t~string37.base, 2 + #t~string37.offset, 1);call write~init~int(116, #t~string37.base, 3 + #t~string37.offset, 1);call write~init~int(104, #t~string37.base, 4 + #t~string37.offset, 1);call write~init~int(58, #t~string37.base, 5 + #t~string37.offset, 1);call write~init~int(0, #t~string37.base, 6 + #t~string37.offset, 1);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string39.base, #t~string39.offset, 1);call write~init~int(82, #t~string39.base, 1 + #t~string39.offset, 1);call write~init~int(73, #t~string39.base, 2 + #t~string39.offset, 1);call write~init~int(84, #t~string39.base, 3 + #t~string39.offset, 1);call write~init~int(0, #t~string39.base, 4 + #t~string39.offset, 1);call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string41.base, #t~string41.offset, 1);call write~init~int(75, #t~string41.base, 1 + #t~string41.offset, 1);call write~init~int(0, #t~string41.base, 2 + #t~string41.offset, 1);call #t~string43.base, #t~string43.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string43.base, #t~string43.offset, 1);call write~init~int(0, #t~string43.base, 1 + #t~string43.offset, 1);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(30);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(9);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(21);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(30);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(9);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(21);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(30);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(9);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(25);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(30);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(9);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(25);~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4; 39#L-1true havoc main_#res;havoc main_#t~ret79, main_~retValue_acc~11, main_~tmp~8;havoc main_~retValue_acc~11;havoc main_~tmp~8; 14#L324true 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; 28#L332true main_#t~ret79 := valid_product_#res;main_~tmp~8 := main_#t~ret79;havoc main_#t~ret79; 72#L901true assume 0 != main_~tmp~8; 47#L878true havoc test_#t~nondet7, test_#t~nondet8, test_#t~nondet9, test_#t~nondet10, test_~splverifierCounter~0, test_~tmp~0, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~0;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 26#L346-1true [2021-08-27 16:16:16,357 INFO L793 eck$LassoCheckResult]: Loop: 26#L346-1true assume !false; 35#L66true assume test_~splverifierCounter~0 < 4; 52#L67true test_~tmp~0 := test_#t~nondet7;havoc test_#t~nondet7; 70#L75true assume !(0 != test_~tmp~0); 31#L75-1true test_~tmp___0~0 := test_#t~nondet8;havoc test_#t~nondet8; 36#L85true assume !(0 != test_~tmp___0~0); 56#L85-1true test_~tmp___2~0 := test_#t~nondet9;havoc test_#t~nondet9; 25#L95true assume 0 != test_~tmp___2~0; 16#L101-2true assume !(0 != ~pumpRunning~0); 15#L136true assume !(0 != ~systemActive~0); 32#L143true havoc __utac_acc__Specification4_spec__1_#t~ret32, __utac_acc__Specification4_spec__1_#t~ret33, __utac_acc__Specification4_spec__1_~tmp~4, __utac_acc__Specification4_spec__1_~tmp___0~2;havoc __utac_acc__Specification4_spec__1_~tmp~4;havoc __utac_acc__Specification4_spec__1_~tmp___0~2;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~6;havoc getWaterLevel_~retValue_acc~6;getWaterLevel_~retValue_acc~6 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~6; 62#L439true __utac_acc__Specification4_spec__1_#t~ret32 := getWaterLevel_#res;__utac_acc__Specification4_spec__1_~tmp~4 := __utac_acc__Specification4_spec__1_#t~ret32;havoc __utac_acc__Specification4_spec__1_#t~ret32; 45#L346true assume !(0 == __utac_acc__Specification4_spec__1_~tmp~4); 26#L346-1true [2021-08-27 16:16:16,361 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 16:16:16,361 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 1 times [2021-08-27 16:16:16,368 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 16:16:16,369 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1303522985] [2021-08-27 16:16:16,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 16:16:16,370 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 16:16:16,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 16:16:16,617 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 16:16:16,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 16:16:16,756 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 16:16:16,768 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 16:16:16,768 INFO L82 PathProgramCache]: Analyzing trace with hash -1681683774, now seen corresponding path program 1 times [2021-08-27 16:16:16,768 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 16:16:16,769 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1813293328] [2021-08-27 16:16:16,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 16:16:16,770 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 16:16:16,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 16:16:16,784 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 16:16:16,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 16:16:16,795 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 16:16:16,802 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 16:16:16,804 INFO L82 PathProgramCache]: Analyzing trace with hash 32595164, now seen corresponding path program 1 times [2021-08-27 16:16:16,804 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 16:16:16,804 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [903449079] [2021-08-27 16:16:16,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 16:16:16,805 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 16:16:16,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 16:16:16,959 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 16:16:16,959 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 16:16:16,960 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [903449079] [2021-08-27 16:16:16,960 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [903449079] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-27 16:16:16,960 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-27 16:16:16,961 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-08-27 16:16:16,961 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [663953049] [2021-08-27 16:16:17,125 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 16:16:17,135 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-08-27 16:16:17,136 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-08-27 16:16:17,137 INFO L87 Difference]: Start difference. First operand has 72 states, 71 states have (on average 1.5211267605633803) internal successors, (108), 71 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 6 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 5 states have internal predecessors, (19), 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 16:16:17,320 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 16:16:17,321 INFO L93 Difference]: Finished difference Result 72 states and 97 transitions. [2021-08-27 16:16:17,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-27 16:16:17,323 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 72 states and 97 transitions. [2021-08-27 16:16:17,325 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 43 [2021-08-27 16:16:17,332 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 72 states to 65 states and 90 transitions. [2021-08-27 16:16:17,334 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 65 [2021-08-27 16:16:17,335 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 65 [2021-08-27 16:16:17,336 INFO L73 IsDeterministic]: Start isDeterministic. Operand 65 states and 90 transitions. [2021-08-27 16:16:17,337 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-27 16:16:17,338 INFO L681 BuchiCegarLoop]: Abstraction has 65 states and 90 transitions. [2021-08-27 16:16:17,351 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states and 90 transitions. [2021-08-27 16:16:17,364 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 65. [2021-08-27 16:16:17,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65 states, 65 states have (on average 1.3846153846153846) internal successors, (90), 64 states have internal predecessors, (90), 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 16:16:17,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 90 transitions. [2021-08-27 16:16:17,380 INFO L704 BuchiCegarLoop]: Abstraction has 65 states and 90 transitions. [2021-08-27 16:16:17,380 INFO L587 BuchiCegarLoop]: Abstraction has 65 states and 90 transitions. [2021-08-27 16:16:17,380 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-08-27 16:16:17,381 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 65 states and 90 transitions. [2021-08-27 16:16:17,386 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 43 [2021-08-27 16:16:17,386 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-27 16:16:17,386 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-27 16:16:17,387 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-08-27 16:16:17,387 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 16:16:17,388 INFO L791 eck$LassoCheckResult]: Stem: 224#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~string15.base, #t~string15.offset := #Ultimate.allocOnStack(13);call #t~string17.base, #t~string17.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string17.base, #t~string17.offset, 1);call write~init~int(110, #t~string17.base, 1 + #t~string17.offset, 1);call write~init~int(0, #t~string17.base, 2 + #t~string17.offset, 1);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string19.base, #t~string19.offset, 1);call write~init~int(102, #t~string19.base, 1 + #t~string19.offset, 1);call write~init~int(102, #t~string19.base, 2 + #t~string19.offset, 1);call write~init~int(0, #t~string19.base, 3 + #t~string19.offset, 1);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string21.base, #t~string21.offset, 1);call write~init~int(80, #t~string21.base, 1 + #t~string21.offset, 1);call write~init~int(117, #t~string21.base, 2 + #t~string21.offset, 1);call write~init~int(109, #t~string21.base, 3 + #t~string21.offset, 1);call write~init~int(112, #t~string21.base, 4 + #t~string21.offset, 1);call write~init~int(58, #t~string21.base, 5 + #t~string21.offset, 1);call write~init~int(0, #t~string21.base, 6 + #t~string21.offset, 1);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string23.base, #t~string23.offset, 1);call write~init~int(110, #t~string23.base, 1 + #t~string23.offset, 1);call write~init~int(0, #t~string23.base, 2 + #t~string23.offset, 1);call #t~string25.base, #t~string25.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string25.base, #t~string25.offset, 1);call write~init~int(102, #t~string25.base, 1 + #t~string25.offset, 1);call write~init~int(102, #t~string25.base, 2 + #t~string25.offset, 1);call write~init~int(0, #t~string25.base, 3 + #t~string25.offset, 1);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string27.base, #t~string27.offset, 1);call write~init~int(32, #t~string27.base, 1 + #t~string27.offset, 1);call write~init~int(0, #t~string27.base, 2 + #t~string27.offset, 1);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string29.base, #t~string29.offset, 1);call write~init~int(0, #t~string29.base, 1 + #t~string29.offset, 1);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(13);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string37.base, #t~string37.offset, 1);call write~init~int(77, #t~string37.base, 1 + #t~string37.offset, 1);call write~init~int(101, #t~string37.base, 2 + #t~string37.offset, 1);call write~init~int(116, #t~string37.base, 3 + #t~string37.offset, 1);call write~init~int(104, #t~string37.base, 4 + #t~string37.offset, 1);call write~init~int(58, #t~string37.base, 5 + #t~string37.offset, 1);call write~init~int(0, #t~string37.base, 6 + #t~string37.offset, 1);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string39.base, #t~string39.offset, 1);call write~init~int(82, #t~string39.base, 1 + #t~string39.offset, 1);call write~init~int(73, #t~string39.base, 2 + #t~string39.offset, 1);call write~init~int(84, #t~string39.base, 3 + #t~string39.offset, 1);call write~init~int(0, #t~string39.base, 4 + #t~string39.offset, 1);call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string41.base, #t~string41.offset, 1);call write~init~int(75, #t~string41.base, 1 + #t~string41.offset, 1);call write~init~int(0, #t~string41.base, 2 + #t~string41.offset, 1);call #t~string43.base, #t~string43.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string43.base, #t~string43.offset, 1);call write~init~int(0, #t~string43.base, 1 + #t~string43.offset, 1);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(30);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(9);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(21);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(30);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(9);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(21);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(30);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(9);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(25);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(30);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(9);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(25);~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4; 213#L-1 havoc main_#res;havoc main_#t~ret79, main_~retValue_acc~11, main_~tmp~8;havoc main_~retValue_acc~11;havoc main_~tmp~8; 180#L324 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; 181#L332 main_#t~ret79 := valid_product_#res;main_~tmp~8 := main_#t~ret79;havoc main_#t~ret79; 203#L901 assume 0 != main_~tmp~8; 220#L878 havoc test_#t~nondet7, test_#t~nondet8, test_#t~nondet9, test_#t~nondet10, test_~splverifierCounter~0, test_~tmp~0, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~0;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 197#L346-1 [2021-08-27 16:16:17,388 INFO L793 eck$LassoCheckResult]: Loop: 197#L346-1 assume !false; 198#L66 assume test_~splverifierCounter~0 < 4; 210#L67 test_~tmp~0 := test_#t~nondet7;havoc test_#t~nondet7; 223#L75 assume !(0 != test_~tmp~0); 204#L75-1 test_~tmp___0~0 := test_#t~nondet8;havoc test_#t~nondet8; 205#L85 assume !(0 != test_~tmp___0~0); 179#L85-1 test_~tmp___2~0 := test_#t~nondet9;havoc test_#t~nondet9; 192#L95 assume 0 != test_~tmp___2~0; 183#L101-2 assume !(0 != ~pumpRunning~0); 168#L136 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret11, processEnvironment_~tmp~1;havoc processEnvironment_~tmp~1; 162#L168 assume !(0 != ~pumpRunning~0); 164#L143 havoc __utac_acc__Specification4_spec__1_#t~ret32, __utac_acc__Specification4_spec__1_#t~ret33, __utac_acc__Specification4_spec__1_~tmp~4, __utac_acc__Specification4_spec__1_~tmp___0~2;havoc __utac_acc__Specification4_spec__1_~tmp~4;havoc __utac_acc__Specification4_spec__1_~tmp___0~2;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~6;havoc getWaterLevel_~retValue_acc~6;getWaterLevel_~retValue_acc~6 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~6; 206#L439 __utac_acc__Specification4_spec__1_#t~ret32 := getWaterLevel_#res;__utac_acc__Specification4_spec__1_~tmp~4 := __utac_acc__Specification4_spec__1_#t~ret32;havoc __utac_acc__Specification4_spec__1_#t~ret32; 216#L346 assume !(0 == __utac_acc__Specification4_spec__1_~tmp~4); 197#L346-1 [2021-08-27 16:16:17,388 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 16:16:17,388 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 2 times [2021-08-27 16:16:17,389 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 16:16:17,389 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [326821884] [2021-08-27 16:16:17,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 16:16:17,389 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 16:16:17,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 16:16:17,436 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 16:16:17,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 16:16:17,500 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 16:16:17,501 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 16:16:17,501 INFO L82 PathProgramCache]: Analyzing trace with hash -619582373, now seen corresponding path program 1 times [2021-08-27 16:16:17,501 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 16:16:17,501 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1501664120] [2021-08-27 16:16:17,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 16:16:17,502 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 16:16:17,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 16:16:17,505 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 16:16:17,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 16:16:17,510 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 16:16:17,511 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 16:16:17,511 INFO L82 PathProgramCache]: Analyzing trace with hash 983457153, now seen corresponding path program 1 times [2021-08-27 16:16:17,511 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 16:16:17,511 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [100953582] [2021-08-27 16:16:17,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 16:16:17,512 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 16:16:17,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 16:16:17,552 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 16:16:17,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 16:16:17,625 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 16:16:59,094 WARN L207 SmtUtils]: Spent 41.36 s on a formula simplification. DAG size of input: 491 DAG size of output: 433 [2021-08-27 16:17:38,873 WARN L207 SmtUtils]: Spent 20.09 s on a formula simplification that was a NOOP. DAG size: 433 [2021-08-27 16:17:38,984 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 27.08 04:17:38 BoogieIcfgContainer [2021-08-27 16:17:38,984 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-08-27 16:17:38,985 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-08-27 16:17:38,985 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-08-27 16:17:38,985 INFO L275 PluginConnector]: Witness Printer initialized [2021-08-27 16:17:38,986 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 04:16:16" (3/4) ... [2021-08-27 16:17:38,988 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2021-08-27 16:17:39,019 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-08-27 16:17:39,019 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-08-27 16:17:39,020 INFO L168 Benchmark]: Toolchain (without parser) took 84153.55 ms. Allocated memory was 50.3 MB in the beginning and 96.5 MB in the end (delta: 46.1 MB). Free memory was 27.0 MB in the beginning and 58.5 MB in the end (delta: -31.5 MB). Peak memory consumption was 14.3 MB. Max. memory is 16.1 GB. [2021-08-27 16:17:39,021 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 50.3 MB. Free memory was 32.9 MB in the beginning and 32.9 MB in the end (delta: 38.1 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-08-27 16:17:39,021 INFO L168 Benchmark]: CACSL2BoogieTranslator took 398.44 ms. Allocated memory was 50.3 MB in the beginning and 65.0 MB in the end (delta: 14.7 MB). Free memory was 26.8 MB in the beginning and 43.6 MB in the end (delta: -16.9 MB). Peak memory consumption was 5.2 MB. Max. memory is 16.1 GB. [2021-08-27 16:17:39,022 INFO L168 Benchmark]: Boogie Procedure Inliner took 78.74 ms. Allocated memory is still 65.0 MB. Free memory was 43.4 MB in the beginning and 40.6 MB in the end (delta: 2.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-08-27 16:17:39,022 INFO L168 Benchmark]: Boogie Preprocessor took 47.41 ms. Allocated memory is still 65.0 MB. Free memory was 40.6 MB in the beginning and 38.7 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-08-27 16:17:39,022 INFO L168 Benchmark]: RCFGBuilder took 843.62 ms. Allocated memory is still 65.0 MB. Free memory was 38.7 MB in the beginning and 36.6 MB in the end (delta: 2.0 MB). Peak memory consumption was 14.9 MB. Max. memory is 16.1 GB. [2021-08-27 16:17:39,023 INFO L168 Benchmark]: BuchiAutomizer took 82745.42 ms. Allocated memory was 65.0 MB in the beginning and 96.5 MB in the end (delta: 31.5 MB). Free memory was 36.3 MB in the beginning and 60.5 MB in the end (delta: -24.2 MB). Peak memory consumption was 52.4 MB. Max. memory is 16.1 GB. [2021-08-27 16:17:39,023 INFO L168 Benchmark]: Witness Printer took 34.55 ms. Allocated memory is still 96.5 MB. Free memory was 60.5 MB in the beginning and 58.5 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-08-27 16:17:39,025 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 50.3 MB. Free memory was 32.9 MB in the beginning and 32.9 MB in the end (delta: 38.1 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 398.44 ms. Allocated memory was 50.3 MB in the beginning and 65.0 MB in the end (delta: 14.7 MB). Free memory was 26.8 MB in the beginning and 43.6 MB in the end (delta: -16.9 MB). Peak memory consumption was 5.2 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 78.74 ms. Allocated memory is still 65.0 MB. Free memory was 43.4 MB in the beginning and 40.6 MB in the end (delta: 2.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 47.41 ms. Allocated memory is still 65.0 MB. Free memory was 40.6 MB in the beginning and 38.7 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 843.62 ms. Allocated memory is still 65.0 MB. Free memory was 38.7 MB in the beginning and 36.6 MB in the end (delta: 2.0 MB). Peak memory consumption was 14.9 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 82745.42 ms. Allocated memory was 65.0 MB in the beginning and 96.5 MB in the end (delta: 31.5 MB). Free memory was 36.3 MB in the beginning and 60.5 MB in the end (delta: -24.2 MB). Peak memory consumption was 52.4 MB. Max. memory is 16.1 GB. * Witness Printer took 34.55 ms. Allocated memory is still 96.5 MB. Free memory was 60.5 MB in the beginning and 58.5 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 1 terminating modules (1 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.1 modules have a trivial ranking function, the largest among these consists of 6 locations. The remainder module has 65 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 82.6s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 82.3s. Construction of modules took 0.0s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 0. Minimization of det autom 1. Minimization of nondet autom 0. Automata minimization 30.9ms AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 65 states and ocurred in iteration 1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 92 SDtfs, 367 SDslu, 2 SDs, 0 SdLazy, 8 SolverSat, 4 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 85.9ms Time LassoAnalysisResults: nont1 unkn0 SFLI0 SFLT0 conc1 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 65]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=8696} State at position 1 is {NULL=8712, NULL=0, NULL=0, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@75b53e2e=65, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@253fa63d=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@f36aecb=0, NULL=8696, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@59a4c8a1=0, NULL=8715, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@c33a13b=0, NULL=0, NULL=8703, NULL=0, NULL=8723, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@cf30d76=0, NULL=8710, methaneLevelCritical=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@34b5d3e9=0, NULL=8709, NULL=0, NULL=8699, NULL=0, NULL=0, tmp___1=0, NULL=8713, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7ce3b930=0, NULL=8704, NULL=0, NULL=0, NULL=8706, cleanupTimeShifts=4, tmp=0, NULL=8721, tmp___0=0, NULL=8705, NULL=0, NULL=0, NULL=0, NULL=0, NULL=0, NULL=0, systemActive=1, waterLevel=1, \result=1, tmp___0=0, retValue_acc=0, NULL=8719, \result=1, head=0, pumpRunning=0, \result=0, NULL=8697, NULL=8718, NULL=0, NULL=8724, NULL=0, NULL=0, tmp=1, NULL=8722, NULL=0, retValue_acc=1, NULL=8716, NULL=0, NULL=0, tmp=1, NULL=8714, NULL=0, NULL=0, NULL=8707, NULL=0, retValue_acc=1, tmp___2=65, NULL=0, splverifierCounter=0, NULL=0, NULL=8720, NULL=8717, NULL=8711, tmp=0, head=0, NULL=8702, NULL=8708, NULL=0, NULL=0, NULL=8700, NULL=8701, NULL=8698} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L128] int pumpRunning = 0; [L129] int systemActive = 1; [L364] int waterLevel = 1; [L365] int methaneLevelCritical = 0; [L622] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L819] int cleanupTimeShifts = 4; [L892] int retValue_acc ; [L893] int tmp ; [L328] int retValue_acc ; [L331] retValue_acc = 1 [L332] return (retValue_acc); [L899] tmp = valid_product() [L901] COND TRUE \read(tmp) [L56] int splverifierCounter ; [L57] int tmp ; [L58] int tmp___0 ; [L59] int tmp___1 ; [L60] int tmp___2 ; [L63] splverifierCounter = 0 Loop: [L65] COND TRUE 1 [L67] COND TRUE splverifierCounter < 4 [L73] tmp = __VERIFIER_nondet_int() [L75] COND FALSE !(\read(tmp)) [L83] tmp___0 = __VERIFIER_nondet_int() [L85] COND FALSE !(\read(tmp___0)) [L93] tmp___2 = __VERIFIER_nondet_int() [L95] COND TRUE \read(tmp___2) [L136] COND FALSE !(\read(pumpRunning)) [L143] COND TRUE \read(systemActive) [L165] int tmp ; [L168] COND FALSE !(\read(pumpRunning)) [L339] int tmp ; [L340] int tmp___0 ; [L435] int retValue_acc ; [L438] retValue_acc = waterLevel [L439] return (retValue_acc); [L344] tmp = getWaterLevel() [L346] COND FALSE !(tmp == 0) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2021-08-27 16:17:39,072 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...