./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/minepump_spec1_product22.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 20ed64ec Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i ../sv-benchmarks/c/product-lines/minepump_spec1_product22.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 20892c88f0ca6c150ca3aad2ee45b915645ec1b7 .................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM) --- Real Ultimate output --- This is Ultimate 0.2.1-dev-20ed64e [2021-08-27 15:54:24,525 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-27 15:54:24,527 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-27 15:54:24,556 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-08-27 15:54:24,556 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-08-27 15:54:24,559 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-08-27 15:54:24,559 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-08-27 15:54:24,563 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-08-27 15:54:24,565 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-08-27 15:54:24,568 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-08-27 15:54:24,569 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-08-27 15:54:24,571 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-08-27 15:54:24,572 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-27 15:54:24,573 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-27 15:54:24,574 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-27 15:54:24,577 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-27 15:54:24,577 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-27 15:54:24,578 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-27 15:54:24,579 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-27 15:54:24,584 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-27 15:54:24,584 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-27 15:54:24,585 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-27 15:54:24,586 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-27 15:54:24,587 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-27 15:54:24,591 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-08-27 15:54:24,592 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-08-27 15:54:24,592 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-08-27 15:54:24,593 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-08-27 15:54:24,593 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-08-27 15:54:24,593 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-08-27 15:54:24,594 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-08-27 15:54:24,594 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-08-27 15:54:24,595 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-08-27 15:54:24,595 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-08-27 15:54:24,596 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-08-27 15:54:24,596 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-08-27 15:54:24,597 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-08-27 15:54:24,597 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-08-27 15:54:24,597 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-27 15:54:24,598 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-27 15:54:24,599 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-27 15:54:24,602 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-08-27 15:54:24,624 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-27 15:54:24,625 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-27 15:54:24,625 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-27 15:54:24,625 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-27 15:54:24,627 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-27 15:54:24,627 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-27 15:54:24,627 INFO L138 SettingsManager]: * Use SBE=true [2021-08-27 15:54:24,627 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-08-27 15:54:24,627 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-08-27 15:54:24,627 INFO L138 SettingsManager]: * Use old map elimination=false [2021-08-27 15:54:24,628 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-08-27 15:54:24,628 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-08-27 15:54:24,628 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-08-27 15:54:24,628 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-27 15:54:24,628 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-27 15:54:24,628 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-08-27 15:54:24,628 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-27 15:54:24,628 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-27 15:54:24,628 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-27 15:54:24,629 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-08-27 15:54:24,629 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-08-27 15:54:24,629 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-08-27 15:54:24,639 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-27 15:54:24,639 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-27 15:54:24,639 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-08-27 15:54:24,639 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-27 15:54:24,639 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-08-27 15:54:24,639 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-27 15:54:24,639 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-27 15:54:24,639 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-27 15:54:24,639 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-08-27 15:54:24,640 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-08-27 15:54:24,641 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-08-27 15:54:24,641 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 20892c88f0ca6c150ca3aad2ee45b915645ec1b7 [2021-08-27 15:54:24,886 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-27 15:54:24,898 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-27 15:54:24,900 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-27 15:54:24,900 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-27 15:54:24,901 INFO L275 PluginConnector]: CDTParser initialized [2021-08-27 15:54:24,901 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec1_product22.cil.c [2021-08-27 15:54:24,943 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/08ea2f33a/4fde1427245d46358151c6f0c1d35a96/FLAGf8da6e288 [2021-08-27 15:54:25,362 INFO L306 CDTParser]: Found 1 translation units. [2021-08-27 15:54:25,363 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec1_product22.cil.c [2021-08-27 15:54:25,372 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/08ea2f33a/4fde1427245d46358151c6f0c1d35a96/FLAGf8da6e288 [2021-08-27 15:54:25,726 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/08ea2f33a/4fde1427245d46358151c6f0c1d35a96 [2021-08-27 15:54:25,729 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-27 15:54:25,730 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-08-27 15:54:25,733 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-27 15:54:25,733 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-27 15:54:25,735 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-27 15:54:25,736 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 03:54:25" (1/1) ... [2021-08-27 15:54:25,737 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@75b05018 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:54:25, skipping insertion in model container [2021-08-27 15:54:25,737 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 03:54:25" (1/1) ... [2021-08-27 15:54:25,741 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-27 15:54:25,780 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-27 15:54:25,944 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec1_product22.cil.c[13152,13165] [2021-08-27 15:54:25,990 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-27 15:54:25,995 INFO L203 MainTranslator]: Completed pre-run [2021-08-27 15:54:26,053 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec1_product22.cil.c[13152,13165] [2021-08-27 15:54:26,061 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-27 15:54:26,079 INFO L208 MainTranslator]: Completed translation [2021-08-27 15:54:26,079 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:54:26 WrapperNode [2021-08-27 15:54:26,080 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-27 15:54:26,081 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-08-27 15:54:26,081 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-08-27 15:54:26,081 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-08-27 15:54:26,085 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:54:26" (1/1) ... [2021-08-27 15:54:26,107 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:54:26" (1/1) ... [2021-08-27 15:54:26,145 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-08-27 15:54:26,145 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-27 15:54:26,145 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-27 15:54:26,145 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-27 15:54:26,155 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:54:26" (1/1) ... [2021-08-27 15:54:26,155 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:54:26" (1/1) ... [2021-08-27 15:54:26,162 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:54:26" (1/1) ... [2021-08-27 15:54:26,162 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:54:26" (1/1) ... [2021-08-27 15:54:26,171 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:54:26" (1/1) ... [2021-08-27 15:54:26,183 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:54:26" (1/1) ... [2021-08-27 15:54:26,184 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:54:26" (1/1) ... [2021-08-27 15:54:26,185 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-27 15:54:26,186 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-27 15:54:26,186 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-27 15:54:26,186 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-27 15:54:26,187 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:54:26" (1/1) ... [2021-08-27 15:54:26,215 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:54:26,220 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:54:26,230 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 15:54:26,249 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-08-27 15:54:26,269 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-08-27 15:54:26,270 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-08-27 15:54:26,270 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-27 15:54:26,270 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-27 15:54:26,854 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-27 15:54:26,854 INFO L299 CfgBuilder]: Removed 158 assume(true) statements. [2021-08-27 15:54:26,856 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 03:54:26 BoogieIcfgContainer [2021-08-27 15:54:26,856 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-27 15:54:26,856 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-08-27 15:54:26,856 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-08-27 15:54:26,858 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-08-27 15:54:26,859 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-08-27 15:54:26,859 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 27.08 03:54:25" (1/3) ... [2021-08-27 15:54:26,859 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1cf8e0e8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 27.08 03:54:26, skipping insertion in model container [2021-08-27 15:54:26,860 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-08-27 15:54:26,860 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:54:26" (2/3) ... [2021-08-27 15:54:26,860 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1cf8e0e8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 27.08 03:54:26, skipping insertion in model container [2021-08-27 15:54:26,860 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-08-27 15:54:26,860 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 03:54:26" (3/3) ... [2021-08-27 15:54:26,861 INFO L389 chiAutomizerObserver]: Analyzing ICFG minepump_spec1_product22.cil.c [2021-08-27 15:54:26,885 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-08-27 15:54:26,886 INFO L360 BuchiCegarLoop]: Hoare is false [2021-08-27 15:54:26,886 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-08-27 15:54:26,886 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-08-27 15:54:26,886 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-08-27 15:54:26,886 INFO L364 BuchiCegarLoop]: Difference is false [2021-08-27 15:54:26,886 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-08-27 15:54:26,886 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-08-27 15:54:26,896 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 102 states, 101 states have (on average 1.5148514851485149) internal successors, (153), 101 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 15:54:26,911 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 65 [2021-08-27 15:54:26,911 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-27 15:54:26,911 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-27 15:54:26,915 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-08-27 15:54:26,916 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 15:54:26,916 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-08-27 15:54:26,917 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 102 states, 101 states have (on average 1.5148514851485149) internal successors, (153), 101 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 15:54:26,920 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 65 [2021-08-27 15:54:26,920 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-27 15:54:26,920 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-27 15:54:26,920 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-08-27 15:54:26,920 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 15:54:26,923 INFO L791 eck$LassoCheckResult]: Stem: 90#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(31);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(30);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(9);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(21);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(30);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(9);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(21);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(30);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(9);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(25);call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(30);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(9);call #t~string43.base, #t~string43.offset := #Ultimate.allocOnStack(25);call #t~string47.base, #t~string47.offset := #Ultimate.allocOnStack(13);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string49.base, #t~string49.offset, 1);call write~init~int(77, #t~string49.base, 1 + #t~string49.offset, 1);call write~init~int(101, #t~string49.base, 2 + #t~string49.offset, 1);call write~init~int(116, #t~string49.base, 3 + #t~string49.offset, 1);call write~init~int(104, #t~string49.base, 4 + #t~string49.offset, 1);call write~init~int(58, #t~string49.base, 5 + #t~string49.offset, 1);call write~init~int(0, #t~string49.base, 6 + #t~string49.offset, 1);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string51.base, #t~string51.offset, 1);call write~init~int(82, #t~string51.base, 1 + #t~string51.offset, 1);call write~init~int(73, #t~string51.base, 2 + #t~string51.offset, 1);call write~init~int(84, #t~string51.base, 3 + #t~string51.offset, 1);call write~init~int(0, #t~string51.base, 4 + #t~string51.offset, 1);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string53.base, #t~string53.offset, 1);call write~init~int(75, #t~string53.base, 1 + #t~string53.offset, 1);call write~init~int(0, #t~string53.base, 2 + #t~string53.offset, 1);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string55.base, #t~string55.offset, 1);call write~init~int(0, #t~string55.base, 1 + #t~string55.offset, 1);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(13);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string62.base, #t~string62.offset, 1);call write~init~int(110, #t~string62.base, 1 + #t~string62.offset, 1);call write~init~int(0, #t~string62.base, 2 + #t~string62.offset, 1);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string64.base, #t~string64.offset, 1);call write~init~int(102, #t~string64.base, 1 + #t~string64.offset, 1);call write~init~int(102, #t~string64.base, 2 + #t~string64.offset, 1);call write~init~int(0, #t~string64.base, 3 + #t~string64.offset, 1);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string66.base, #t~string66.offset, 1);call write~init~int(80, #t~string66.base, 1 + #t~string66.offset, 1);call write~init~int(117, #t~string66.base, 2 + #t~string66.offset, 1);call write~init~int(109, #t~string66.base, 3 + #t~string66.offset, 1);call write~init~int(112, #t~string66.base, 4 + #t~string66.offset, 1);call write~init~int(58, #t~string66.base, 5 + #t~string66.offset, 1);call write~init~int(0, #t~string66.base, 6 + #t~string66.offset, 1);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string68.base, #t~string68.offset, 1);call write~init~int(110, #t~string68.base, 1 + #t~string68.offset, 1);call write~init~int(0, #t~string68.base, 2 + #t~string68.offset, 1);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string70.base, #t~string70.offset, 1);call write~init~int(102, #t~string70.base, 1 + #t~string70.offset, 1);call write~init~int(102, #t~string70.base, 2 + #t~string70.offset, 1);call write~init~int(0, #t~string70.base, 3 + #t~string70.offset, 1);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string72.base, #t~string72.offset, 1);call write~init~int(32, #t~string72.base, 1 + #t~string72.offset, 1);call write~init~int(0, #t~string72.base, 2 + #t~string72.offset, 1);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string74.base, #t~string74.offset, 1);call write~init~int(0, #t~string74.base, 1 + #t~string74.offset, 1);~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1; 30#L-1true havoc main_#res;havoc main_#t~ret10, main_~retValue_acc~2, main_~tmp~1;havoc main_~retValue_acc~2;havoc main_~tmp~1; 89#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; 45#L75true main_#t~ret10 := valid_product_#res;main_~tmp~1 := main_#t~ret10;havoc main_#t~ret10; 47#L196true assume 0 != main_~tmp~1; 83#L172true havoc test_#t~nondet76, test_#t~nondet77, test_#t~nondet78, test_#t~nondet79, test_~splverifierCounter~0, test_~tmp~8, test_~tmp___0~2, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~8;havoc test_~tmp___0~2;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 29#L91-1true [2021-08-27 15:54:26,924 INFO L793 eck$LassoCheckResult]: Loop: 29#L91-1true assume !false; 36#L878true assume test_~splverifierCounter~0 < 4; 67#L879true test_~tmp~8 := test_#t~nondet76;havoc test_#t~nondet76; 93#L887true assume !(0 != test_~tmp~8); 24#L887-1true test_~tmp___0~2 := test_#t~nondet77;havoc test_#t~nondet77; 7#L897true assume !(0 != test_~tmp___0~2); 82#L897-1true test_~tmp___2~0 := test_#t~nondet78;havoc test_#t~nondet78; 44#L907true assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 94#L915-2true assume !(0 != ~pumpRunning~0); 77#L688true assume !(0 != ~systemActive~0); 100#L695true havoc __utac_acc__Specification1_spec__1_#t~ret8, __utac_acc__Specification1_spec__1_#t~ret9, __utac_acc__Specification1_spec__1_~tmp~0, __utac_acc__Specification1_spec__1_~tmp___0~0;havoc __utac_acc__Specification1_spec__1_~tmp~0;havoc __utac_acc__Specification1_spec__1_~tmp___0~0;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~6;havoc isMethaneLevelCritical_~retValue_acc~6;isMethaneLevelCritical_~retValue_acc~6 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~6; 20#L632-1true __utac_acc__Specification1_spec__1_#t~ret8 := isMethaneLevelCritical_#res;__utac_acc__Specification1_spec__1_~tmp~0 := __utac_acc__Specification1_spec__1_#t~ret8;havoc __utac_acc__Specification1_spec__1_#t~ret8; 21#L91true assume !(0 != __utac_acc__Specification1_spec__1_~tmp~0); 29#L91-1true [2021-08-27 15:54:26,927 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 15:54:26,927 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 1 times [2021-08-27 15:54:26,932 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 15:54:26,932 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [296482504] [2021-08-27 15:54:26,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 15:54:26,933 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 15:54:27,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 15:54:27,067 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 15:54:27,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 15:54:27,142 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 15:54:27,144 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 15:54:27,144 INFO L82 PathProgramCache]: Analyzing trace with hash -1679344189, now seen corresponding path program 1 times [2021-08-27 15:54:27,144 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 15:54:27,145 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [865576762] [2021-08-27 15:54:27,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 15:54:27,145 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 15:54:27,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 15:54:27,184 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 15:54:27,184 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 15:54:27,185 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [865576762] [2021-08-27 15:54:27,185 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [865576762] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-27 15:54:27,185 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-27 15:54:27,186 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-27 15:54:27,186 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1732165913] [2021-08-27 15:54:27,189 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-08-27 15:54:27,191 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 15:54:27,201 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-27 15:54:27,201 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-27 15:54:27,204 INFO L87 Difference]: Start difference. First operand has 102 states, 101 states have (on average 1.5148514851485149) internal successors, (153), 101 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 15:54:27,229 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 15:54:27,229 INFO L93 Difference]: Finished difference Result 102 states and 143 transitions. [2021-08-27 15:54:27,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-27 15:54:27,231 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 102 states and 143 transitions. [2021-08-27 15:54:27,233 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 63 [2021-08-27 15:54:27,236 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 102 states to 95 states and 135 transitions. [2021-08-27 15:54:27,236 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 95 [2021-08-27 15:54:27,237 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 95 [2021-08-27 15:54:27,237 INFO L73 IsDeterministic]: Start isDeterministic. Operand 95 states and 135 transitions. [2021-08-27 15:54:27,237 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-27 15:54:27,238 INFO L681 BuchiCegarLoop]: Abstraction has 95 states and 135 transitions. [2021-08-27 15:54:27,249 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states and 135 transitions. [2021-08-27 15:54:27,261 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 95. [2021-08-27 15:54:27,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 95 states, 95 states have (on average 1.4210526315789473) internal successors, (135), 94 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 15:54:27,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 135 transitions. [2021-08-27 15:54:27,267 INFO L704 BuchiCegarLoop]: Abstraction has 95 states and 135 transitions. [2021-08-27 15:54:27,268 INFO L587 BuchiCegarLoop]: Abstraction has 95 states and 135 transitions. [2021-08-27 15:54:27,268 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-08-27 15:54:27,268 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 95 states and 135 transitions. [2021-08-27 15:54:27,273 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 63 [2021-08-27 15:54:27,273 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-27 15:54:27,273 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-27 15:54:27,274 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-08-27 15:54:27,274 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 15:54:27,274 INFO L791 eck$LassoCheckResult]: Stem: 305#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~string29.base, #t~string29.offset := #Ultimate.allocOnStack(30);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(9);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(21);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(30);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(9);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(21);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(30);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(9);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(25);call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(30);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(9);call #t~string43.base, #t~string43.offset := #Ultimate.allocOnStack(25);call #t~string47.base, #t~string47.offset := #Ultimate.allocOnStack(13);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string49.base, #t~string49.offset, 1);call write~init~int(77, #t~string49.base, 1 + #t~string49.offset, 1);call write~init~int(101, #t~string49.base, 2 + #t~string49.offset, 1);call write~init~int(116, #t~string49.base, 3 + #t~string49.offset, 1);call write~init~int(104, #t~string49.base, 4 + #t~string49.offset, 1);call write~init~int(58, #t~string49.base, 5 + #t~string49.offset, 1);call write~init~int(0, #t~string49.base, 6 + #t~string49.offset, 1);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string51.base, #t~string51.offset, 1);call write~init~int(82, #t~string51.base, 1 + #t~string51.offset, 1);call write~init~int(73, #t~string51.base, 2 + #t~string51.offset, 1);call write~init~int(84, #t~string51.base, 3 + #t~string51.offset, 1);call write~init~int(0, #t~string51.base, 4 + #t~string51.offset, 1);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string53.base, #t~string53.offset, 1);call write~init~int(75, #t~string53.base, 1 + #t~string53.offset, 1);call write~init~int(0, #t~string53.base, 2 + #t~string53.offset, 1);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string55.base, #t~string55.offset, 1);call write~init~int(0, #t~string55.base, 1 + #t~string55.offset, 1);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(13);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string62.base, #t~string62.offset, 1);call write~init~int(110, #t~string62.base, 1 + #t~string62.offset, 1);call write~init~int(0, #t~string62.base, 2 + #t~string62.offset, 1);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string64.base, #t~string64.offset, 1);call write~init~int(102, #t~string64.base, 1 + #t~string64.offset, 1);call write~init~int(102, #t~string64.base, 2 + #t~string64.offset, 1);call write~init~int(0, #t~string64.base, 3 + #t~string64.offset, 1);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string66.base, #t~string66.offset, 1);call write~init~int(80, #t~string66.base, 1 + #t~string66.offset, 1);call write~init~int(117, #t~string66.base, 2 + #t~string66.offset, 1);call write~init~int(109, #t~string66.base, 3 + #t~string66.offset, 1);call write~init~int(112, #t~string66.base, 4 + #t~string66.offset, 1);call write~init~int(58, #t~string66.base, 5 + #t~string66.offset, 1);call write~init~int(0, #t~string66.base, 6 + #t~string66.offset, 1);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string68.base, #t~string68.offset, 1);call write~init~int(110, #t~string68.base, 1 + #t~string68.offset, 1);call write~init~int(0, #t~string68.base, 2 + #t~string68.offset, 1);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string70.base, #t~string70.offset, 1);call write~init~int(102, #t~string70.base, 1 + #t~string70.offset, 1);call write~init~int(102, #t~string70.base, 2 + #t~string70.offset, 1);call write~init~int(0, #t~string70.base, 3 + #t~string70.offset, 1);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string72.base, #t~string72.offset, 1);call write~init~int(32, #t~string72.base, 1 + #t~string72.offset, 1);call write~init~int(0, #t~string72.base, 2 + #t~string72.offset, 1);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string74.base, #t~string74.offset, 1);call write~init~int(0, #t~string74.base, 1 + #t~string74.offset, 1);~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1; 291#L-1 havoc main_#res;havoc main_#t~ret10, main_~retValue_acc~2, main_~tmp~1;havoc main_~retValue_acc~2;havoc main_~tmp~1; 292#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; 303#L75 main_#t~ret10 := valid_product_#res;main_~tmp~1 := main_#t~ret10;havoc main_#t~ret10; 307#L196 assume 0 != main_~tmp~1; 293#L172 havoc test_#t~nondet76, test_#t~nondet77, test_#t~nondet78, test_#t~nondet79, test_~splverifierCounter~0, test_~tmp~8, test_~tmp___0~2, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~8;havoc test_~tmp___0~2;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 260#L91-1 [2021-08-27 15:54:27,274 INFO L793 eck$LassoCheckResult]: Loop: 260#L91-1 assume !false; 287#L878 assume test_~splverifierCounter~0 < 4; 264#L879 test_~tmp~8 := test_#t~nondet76;havoc test_#t~nondet76; 265#L887 assume !(0 != test_~tmp~8); 279#L887-1 test_~tmp___0~2 := test_#t~nondet77;havoc test_#t~nondet77; 226#L897 assume !(0 != test_~tmp___0~2); 227#L897-1 test_~tmp___2~0 := test_#t~nondet78;havoc test_#t~nondet78; 289#L907 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 271#L915-2 assume !(0 != ~pumpRunning~0); 283#L688 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret57, processEnvironment_~tmp~6;havoc processEnvironment_~tmp~6; 248#L746 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__lowWaterSensor_#t~ret56, processEnvironment__wrappee__lowWaterSensor_~tmp~5;havoc processEnvironment__wrappee__lowWaterSensor_~tmp~5; 249#L720-1 assume !(0 != ~pumpRunning~0); 262#L695 havoc __utac_acc__Specification1_spec__1_#t~ret8, __utac_acc__Specification1_spec__1_#t~ret9, __utac_acc__Specification1_spec__1_~tmp~0, __utac_acc__Specification1_spec__1_~tmp___0~0;havoc __utac_acc__Specification1_spec__1_~tmp~0;havoc __utac_acc__Specification1_spec__1_~tmp___0~0;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~6;havoc isMethaneLevelCritical_~retValue_acc~6;isMethaneLevelCritical_~retValue_acc~6 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~6; 268#L632-1 __utac_acc__Specification1_spec__1_#t~ret8 := isMethaneLevelCritical_#res;__utac_acc__Specification1_spec__1_~tmp~0 := __utac_acc__Specification1_spec__1_#t~ret8;havoc __utac_acc__Specification1_spec__1_#t~ret8; 269#L91 assume !(0 != __utac_acc__Specification1_spec__1_~tmp~0); 260#L91-1 [2021-08-27 15:54:27,278 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 15:54:27,278 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 2 times [2021-08-27 15:54:27,278 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 15:54:27,278 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [125446993] [2021-08-27 15:54:27,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 15:54:27,281 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 15:54:27,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 15:54:27,354 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 15:54:27,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 15:54:27,412 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 15:54:27,413 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 15:54:27,413 INFO L82 PathProgramCache]: Analyzing trace with hash -1091435467, now seen corresponding path program 1 times [2021-08-27 15:54:27,413 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 15:54:27,413 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [800055456] [2021-08-27 15:54:27,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 15:54:27,413 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 15:54:27,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 15:54:27,417 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 15:54:27,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 15:54:27,420 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 15:54:27,426 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 15:54:27,426 INFO L82 PathProgramCache]: Analyzing trace with hash 1358149583, now seen corresponding path program 1 times [2021-08-27 15:54:27,426 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 15:54:27,427 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [327218022] [2021-08-27 15:54:27,427 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 15:54:27,428 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 15:54:27,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 15:54:27,464 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 15:54:27,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 15:54:27,518 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 15:55:08,097 WARN L207 SmtUtils]: Spent 40.39 s on a formula simplification. DAG size of input: 491 DAG size of output: 433 [2021-08-27 15:55:48,674 WARN L207 SmtUtils]: Spent 19.86 s on a formula simplification that was a NOOP. DAG size: 433 [2021-08-27 15:55:48,761 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 27.08 03:55:48 BoogieIcfgContainer [2021-08-27 15:55:48,767 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-08-27 15:55:48,768 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-08-27 15:55:48,769 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-08-27 15:55:48,769 INFO L275 PluginConnector]: Witness Printer initialized [2021-08-27 15:55:48,769 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 03:54:26" (3/4) ... [2021-08-27 15:55:48,780 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2021-08-27 15:55:48,837 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-08-27 15:55:48,838 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-08-27 15:55:48,839 INFO L168 Benchmark]: Toolchain (without parser) took 83108.59 ms. Allocated memory was 56.6 MB in the beginning and 132.1 MB in the end (delta: 75.5 MB). Free memory was 34.3 MB in the beginning and 76.6 MB in the end (delta: -42.3 MB). Peak memory consumption was 34.9 MB. Max. memory is 16.1 GB. [2021-08-27 15:55:48,839 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 56.6 MB. Free memory was 38.3 MB in the beginning and 38.2 MB in the end (delta: 73.4 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-08-27 15:55:48,840 INFO L168 Benchmark]: CACSL2BoogieTranslator took 347.25 ms. Allocated memory was 56.6 MB in the beginning and 75.5 MB in the end (delta: 18.9 MB). Free memory was 34.0 MB in the beginning and 51.5 MB in the end (delta: -17.5 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-08-27 15:55:48,840 INFO L168 Benchmark]: Boogie Procedure Inliner took 64.14 ms. Allocated memory is still 75.5 MB. Free memory was 51.5 MB in the beginning and 47.9 MB in the end (delta: 3.5 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-08-27 15:55:48,840 INFO L168 Benchmark]: Boogie Preprocessor took 40.26 ms. Allocated memory is still 75.5 MB. Free memory was 47.9 MB in the beginning and 45.6 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-08-27 15:55:48,841 INFO L168 Benchmark]: RCFGBuilder took 669.87 ms. Allocated memory is still 75.5 MB. Free memory was 45.6 MB in the beginning and 46.3 MB in the end (delta: -744.4 kB). Peak memory consumption was 15.6 MB. Max. memory is 16.1 GB. [2021-08-27 15:55:48,841 INFO L168 Benchmark]: BuchiAutomizer took 81911.23 ms. Allocated memory was 75.5 MB in the beginning and 132.1 MB in the end (delta: 56.6 MB). Free memory was 46.3 MB in the beginning and 78.7 MB in the end (delta: -32.4 MB). Peak memory consumption was 77.0 MB. Max. memory is 16.1 GB. [2021-08-27 15:55:48,841 INFO L168 Benchmark]: Witness Printer took 69.92 ms. Allocated memory is still 132.1 MB. Free memory was 78.7 MB in the beginning and 76.6 MB in the end (delta: 2.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-08-27 15:55:48,856 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 56.6 MB. Free memory was 38.3 MB in the beginning and 38.2 MB in the end (delta: 73.4 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 347.25 ms. Allocated memory was 56.6 MB in the beginning and 75.5 MB in the end (delta: 18.9 MB). Free memory was 34.0 MB in the beginning and 51.5 MB in the end (delta: -17.5 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 64.14 ms. Allocated memory is still 75.5 MB. Free memory was 51.5 MB in the beginning and 47.9 MB in the end (delta: 3.5 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 40.26 ms. Allocated memory is still 75.5 MB. Free memory was 47.9 MB in the beginning and 45.6 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 669.87 ms. Allocated memory is still 75.5 MB. Free memory was 45.6 MB in the beginning and 46.3 MB in the end (delta: -744.4 kB). Peak memory consumption was 15.6 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 81911.23 ms. Allocated memory was 75.5 MB in the beginning and 132.1 MB in the end (delta: 56.6 MB). Free memory was 46.3 MB in the beginning and 78.7 MB in the end (delta: -32.4 MB). Peak memory consumption was 77.0 MB. Max. memory is 16.1 GB. * Witness Printer took 69.92 ms. Allocated memory is still 132.1 MB. Free memory was 78.7 MB in the beginning and 76.6 MB in the end (delta: 2.1 MB). Peak memory consumption was 4.2 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 95 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 81.8s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 81.7s. Construction of modules took 0.0s. Büchi inclusion checks took 0.0s. Highest rank in rank-based complementation 0. Minimization of det autom 1. Minimization of nondet autom 0. Automata minimization 20.0ms AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 95 states and ocurred in iteration 1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 140 SDtfs, 140 SDslu, 0 SDs, 0 SdLazy, 3 SolverSat, 3 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 11.9ms 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: 877]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=1} State at position 1 is {NULL=0, NULL=0, NULL=0, NULL=0, NULL=7602, retValue_acc=0, NULL=1, NULL=0, NULL=0, NULL=0, NULL=7604, NULL=0, NULL=0, NULL=7615, NULL=7611, methaneLevelCritical=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@713748c3=0, NULL=7617, NULL=0, NULL=7597, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7de419b6=0, NULL=7608, tmp=0, tmp___1=0, NULL=7598, tmp=0, NULL=0, NULL=0, tmp___0=0, NULL=7614, cleanupTimeShifts=4, NULL=7595, NULL=7603, NULL=7600, NULL=7619, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@74b507ae=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5d2ec281=69, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4948658f=0, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6938b62=0, systemActive=1, waterLevel=1, NULL=0, NULL=0, NULL=0, retValue_acc=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@718280fa=0, NULL=7601, NULL=7613, NULL=0, NULL=0, NULL=7594, \result=1, head=0, pumpRunning=0, NULL=7606, \result=0, NULL=7607, NULL=7609, tmp=1, NULL=0, NULL=0, NULL=0, NULL=0, tmp=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@67634860=0, NULL=0, NULL=0, NULL=7593, retValue_acc=1, tmp___2=69, tmp___0=0, NULL=7599, splverifierCounter=0, NULL=0, \result=0, NULL=7592, NULL=7610, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@11bf56f6=0, head=0, tmp=0, NULL=7596, NULL=0, NULL=0, NULL=7618, NULL=7605, NULL=7612, NULL=7616} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L109] int cleanupTimeShifts = 4; [L379] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L589] int waterLevel = 1; [L590] int methaneLevelCritical = 0; [L681] int pumpRunning = 0; [L682] int systemActive = 1; [L187] int retValue_acc ; [L188] int tmp ; [L71] int retValue_acc ; [L74] retValue_acc = 1 [L75] return (retValue_acc); [L194] tmp = valid_product() [L196] COND TRUE \read(tmp) [L868] int splverifierCounter ; [L869] int tmp ; [L870] int tmp___0 ; [L871] int tmp___1 ; [L872] int tmp___2 ; [L875] splverifierCounter = 0 Loop: [L877] COND TRUE 1 [L879] COND TRUE splverifierCounter < 4 [L885] tmp = __VERIFIER_nondet_int() [L887] COND FALSE !(\read(tmp)) [L895] tmp___0 = __VERIFIER_nondet_int() [L897] COND FALSE !(\read(tmp___0)) [L905] tmp___2 = __VERIFIER_nondet_int() [L907] COND TRUE \read(tmp___2) [L862] systemActive = 1 [L688] COND FALSE !(\read(pumpRunning)) [L695] COND TRUE \read(systemActive) [L743] int tmp ; [L746] COND FALSE !(\read(pumpRunning)) [L717] int tmp ; [L720] COND FALSE !(\read(pumpRunning)) [L84] int tmp ; [L85] int tmp___0 ; [L628] int retValue_acc ; [L631] retValue_acc = methaneLevelCritical [L632] return (retValue_acc); [L89] tmp = isMethaneLevelCritical() [L91] COND FALSE !(\read(tmp)) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2021-08-27 15:55:48,908 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...