./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/minepump_spec4_product07.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_product07.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 39c94a2d26e5e2dda9dfb4c9ca89b9f67883d3d4 ....................................................................................................................................................................................................................................................................................................................................................................................... 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 16:14:28,033 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-27 16:14:28,035 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-27 16:14:28,076 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-08-27 16:14:28,076 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-08-27 16:14:28,079 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-08-27 16:14:28,081 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-08-27 16:14:28,098 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-08-27 16:14:28,099 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-08-27 16:14:28,099 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-08-27 16:14:28,100 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-08-27 16:14:28,101 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-08-27 16:14:28,101 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-27 16:14:28,102 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-27 16:14:28,102 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-27 16:14:28,103 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-27 16:14:28,104 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-27 16:14:28,104 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-27 16:14:28,105 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-27 16:14:28,107 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-27 16:14:28,109 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-27 16:14:28,112 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-27 16:14:28,112 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-27 16:14:28,113 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-27 16:14:28,115 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-08-27 16:14:28,115 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-08-27 16:14:28,115 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-08-27 16:14:28,115 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-08-27 16:14:28,116 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-08-27 16:14:28,116 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-08-27 16:14:28,116 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-08-27 16:14:28,117 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-08-27 16:14:28,117 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-08-27 16:14:28,118 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-08-27 16:14:28,119 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-08-27 16:14:28,119 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-08-27 16:14:28,119 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-08-27 16:14:28,119 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-08-27 16:14:28,119 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-27 16:14:28,120 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-27 16:14:28,120 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-27 16:14:28,127 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-08-27 16:14:28,151 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-27 16:14:28,152 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-27 16:14:28,152 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-27 16:14:28,153 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-27 16:14:28,154 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-27 16:14:28,154 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-27 16:14:28,154 INFO L138 SettingsManager]: * Use SBE=true [2021-08-27 16:14:28,154 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-08-27 16:14:28,154 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-08-27 16:14:28,154 INFO L138 SettingsManager]: * Use old map elimination=false [2021-08-27 16:14:28,155 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-08-27 16:14:28,155 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-08-27 16:14:28,155 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-08-27 16:14:28,155 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-27 16:14:28,155 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-27 16:14:28,156 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-08-27 16:14:28,156 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-27 16:14:28,156 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-27 16:14:28,156 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-27 16:14:28,156 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-08-27 16:14:28,156 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-08-27 16:14:28,156 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-08-27 16:14:28,156 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-27 16:14:28,156 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-27 16:14:28,156 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-08-27 16:14:28,157 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-27 16:14:28,157 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-08-27 16:14:28,157 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-27 16:14:28,157 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-27 16:14:28,157 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-27 16:14:28,157 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-08-27 16:14:28,157 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-08-27 16:14:28,158 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-08-27 16:14:28,158 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 39c94a2d26e5e2dda9dfb4c9ca89b9f67883d3d4 [2021-08-27 16:14:28,448 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-27 16:14:28,463 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-27 16:14:28,465 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-27 16:14:28,466 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-27 16:14:28,466 INFO L275 PluginConnector]: CDTParser initialized [2021-08-27 16:14:28,467 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec4_product07.cil.c [2021-08-27 16:14:28,531 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9fefa6c60/0e5790f1c135450eb33ec0d100eacaeb/FLAG5b3afeb6b [2021-08-27 16:14:28,964 INFO L306 CDTParser]: Found 1 translation units. [2021-08-27 16:14:28,968 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec4_product07.cil.c [2021-08-27 16:14:28,983 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9fefa6c60/0e5790f1c135450eb33ec0d100eacaeb/FLAG5b3afeb6b [2021-08-27 16:14:28,997 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9fefa6c60/0e5790f1c135450eb33ec0d100eacaeb [2021-08-27 16:14:29,000 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-27 16:14:29,002 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-08-27 16:14:29,003 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-27 16:14:29,003 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-27 16:14:29,005 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-27 16:14:29,006 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 04:14:28" (1/1) ... [2021-08-27 16:14:29,007 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6fdc0a42 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:14:29, skipping insertion in model container [2021-08-27 16:14:29,007 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 04:14:28" (1/1) ... [2021-08-27 16:14:29,012 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-27 16:14:29,047 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-27 16:14:29,184 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_product07.cil.c[3026,3039] [2021-08-27 16:14:29,288 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-27 16:14:29,300 INFO L203 MainTranslator]: Completed pre-run [2021-08-27 16:14:29,322 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_product07.cil.c[3026,3039] [2021-08-27 16:14:29,369 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-27 16:14:29,387 INFO L208 MainTranslator]: Completed translation [2021-08-27 16:14:29,389 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:14:29 WrapperNode [2021-08-27 16:14:29,390 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-27 16:14:29,391 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-08-27 16:14:29,391 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-08-27 16:14:29,391 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-08-27 16:14:29,395 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:14:29" (1/1) ... [2021-08-27 16:14:29,416 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:14:29" (1/1) ... [2021-08-27 16:14:29,448 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-08-27 16:14:29,449 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-27 16:14:29,449 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-27 16:14:29,449 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-27 16:14:29,455 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:14:29" (1/1) ... [2021-08-27 16:14:29,455 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:14:29" (1/1) ... [2021-08-27 16:14:29,457 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:14:29" (1/1) ... [2021-08-27 16:14:29,457 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:14:29" (1/1) ... [2021-08-27 16:14:29,462 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:14:29" (1/1) ... [2021-08-27 16:14:29,465 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:14:29" (1/1) ... [2021-08-27 16:14:29,467 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:14:29" (1/1) ... [2021-08-27 16:14:29,469 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-27 16:14:29,470 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-27 16:14:29,470 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-27 16:14:29,470 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-27 16:14:29,471 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:14:29" (1/1) ... [2021-08-27 16:14:29,475 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 16:14:29,480 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 16:14:29,523 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 16:14:29,526 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 16:14:29,559 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-08-27 16:14:29,560 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-08-27 16:14:29,560 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-27 16:14:29,560 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-27 16:14:29,937 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-27 16:14:29,938 INFO L299 CfgBuilder]: Removed 100 assume(true) statements. [2021-08-27 16:14:29,939 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 04:14:29 BoogieIcfgContainer [2021-08-27 16:14:29,939 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-27 16:14:29,940 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-08-27 16:14:29,940 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-08-27 16:14:29,942 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-08-27 16:14:29,942 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-08-27 16:14:29,942 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 27.08 04:14:28" (1/3) ... [2021-08-27 16:14:29,943 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6617bef8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 27.08 04:14:29, skipping insertion in model container [2021-08-27 16:14:29,943 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-08-27 16:14:29,943 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:14:29" (2/3) ... [2021-08-27 16:14:29,943 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6617bef8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 27.08 04:14:29, skipping insertion in model container [2021-08-27 16:14:29,944 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-08-27 16:14:29,944 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 04:14:29" (3/3) ... [2021-08-27 16:14:29,944 INFO L389 chiAutomizerObserver]: Analyzing ICFG minepump_spec4_product07.cil.c [2021-08-27 16:14:29,969 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-08-27 16:14:29,970 INFO L360 BuchiCegarLoop]: Hoare is false [2021-08-27 16:14:29,970 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-08-27 16:14:29,970 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-08-27 16:14:29,970 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-08-27 16:14:29,970 INFO L364 BuchiCegarLoop]: Difference is false [2021-08-27 16:14:29,970 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-08-27 16:14:29,970 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-08-27 16:14:29,979 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 68 states, 67 states have (on average 1.5223880597014925) internal successors, (102), 67 states have internal predecessors, (102), 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 16:14:29,992 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 43 [2021-08-27 16:14:29,992 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-27 16:14:29,992 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-27 16:14:29,996 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-08-27 16:14:29,996 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 16:14:29,996 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-08-27 16:14:29,997 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 68 states, 67 states have (on average 1.5223880597014925) internal successors, (102), 67 states have internal predecessors, (102), 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 16:14:30,000 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 43 [2021-08-27 16:14:30,000 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-27 16:14:30,000 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-27 16:14:30,000 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-08-27 16:14:30,000 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 16:14:30,003 INFO L791 eck$LassoCheckResult]: Stem: 60#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(31);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);call #t~string10.base, #t~string10.offset := #Ultimate.allocOnStack(13);call #t~string12.base, #t~string12.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string12.base, #t~string12.offset, 1);call write~init~int(77, #t~string12.base, 1 + #t~string12.offset, 1);call write~init~int(101, #t~string12.base, 2 + #t~string12.offset, 1);call write~init~int(116, #t~string12.base, 3 + #t~string12.offset, 1);call write~init~int(104, #t~string12.base, 4 + #t~string12.offset, 1);call write~init~int(58, #t~string12.base, 5 + #t~string12.offset, 1);call write~init~int(0, #t~string12.base, 6 + #t~string12.offset, 1);call #t~string14.base, #t~string14.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string14.base, #t~string14.offset, 1);call write~init~int(82, #t~string14.base, 1 + #t~string14.offset, 1);call write~init~int(73, #t~string14.base, 2 + #t~string14.offset, 1);call write~init~int(84, #t~string14.base, 3 + #t~string14.offset, 1);call write~init~int(0, #t~string14.base, 4 + #t~string14.offset, 1);call #t~string16.base, #t~string16.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string16.base, #t~string16.offset, 1);call write~init~int(75, #t~string16.base, 1 + #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 2 + #t~string16.offset, 1);call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string18.base, #t~string18.offset, 1);call write~init~int(0, #t~string18.base, 1 + #t~string18.offset, 1);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(30);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(9);call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(21);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(30);call #t~string43.base, #t~string43.offset := #Ultimate.allocOnStack(9);call #t~string44.base, #t~string44.offset := #Ultimate.allocOnStack(21);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(30);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(9);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(25);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(30);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(9);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(25);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(13);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string65.base, #t~string65.offset, 1);call write~init~int(110, #t~string65.base, 1 + #t~string65.offset, 1);call write~init~int(0, #t~string65.base, 2 + #t~string65.offset, 1);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string67.base, #t~string67.offset, 1);call write~init~int(102, #t~string67.base, 1 + #t~string67.offset, 1);call write~init~int(102, #t~string67.base, 2 + #t~string67.offset, 1);call write~init~int(0, #t~string67.base, 3 + #t~string67.offset, 1);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string69.base, #t~string69.offset, 1);call write~init~int(80, #t~string69.base, 1 + #t~string69.offset, 1);call write~init~int(117, #t~string69.base, 2 + #t~string69.offset, 1);call write~init~int(109, #t~string69.base, 3 + #t~string69.offset, 1);call write~init~int(112, #t~string69.base, 4 + #t~string69.offset, 1);call write~init~int(58, #t~string69.base, 5 + #t~string69.offset, 1);call write~init~int(0, #t~string69.base, 6 + #t~string69.offset, 1);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string71.base, #t~string71.offset, 1);call write~init~int(110, #t~string71.base, 1 + #t~string71.offset, 1);call write~init~int(0, #t~string71.base, 2 + #t~string71.offset, 1);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string73.base, #t~string73.offset, 1);call write~init~int(102, #t~string73.base, 1 + #t~string73.offset, 1);call write~init~int(102, #t~string73.base, 2 + #t~string73.offset, 1);call write~init~int(0, #t~string73.base, 3 + #t~string73.offset, 1);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string75.base, #t~string75.offset, 1);call write~init~int(32, #t~string75.base, 1 + #t~string75.offset, 1);call write~init~int(0, #t~string75.base, 2 + #t~string75.offset, 1);call #t~string77.base, #t~string77.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string77.base, #t~string77.offset, 1);call write~init~int(0, #t~string77.base, 1 + #t~string77.offset, 1);~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1; 49#L-1true havoc main_#res;havoc main_#t~ret8, main_~retValue_acc~2, main_~tmp~0;havoc main_~retValue_acc~2;havoc main_~tmp~0; 59#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; 65#L75true main_#t~ret8 := valid_product_#res;main_~tmp~0 := main_#t~ret8;havoc main_#t~ret8; 25#L167true assume 0 != main_~tmp~0; 41#L143true havoc test_#t~nondet56, test_#t~nondet57, test_#t~nondet58, test_#t~nondet59, test_~splverifierCounter~0, test_~tmp~5, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~5;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 9#L283-1true [2021-08-27 16:14:30,004 INFO L793 eck$LassoCheckResult]: Loop: 9#L283-1true assume !false; 44#L679true assume test_~splverifierCounter~0 < 4; 62#L680true test_~tmp~5 := test_#t~nondet56;havoc test_#t~nondet56; 42#L688true assume !(0 != test_~tmp~5); 18#L688-1true test_~tmp___0~1 := test_#t~nondet57;havoc test_#t~nondet57; 34#L698true assume !(0 != test_~tmp___0~1); 33#L698-1true test_~tmp___2~0 := test_#t~nondet58;havoc test_#t~nondet58; 19#L708true assume 0 != test_~tmp___2~0; 28#L714-1true assume !(0 != ~pumpRunning~0); 48#L744true assume !(0 != ~systemActive~0); 27#L751true havoc __utac_acc__Specification4_spec__1_#t~ret19, __utac_acc__Specification4_spec__1_#t~ret20, __utac_acc__Specification4_spec__1_~tmp~1, __utac_acc__Specification4_spec__1_~tmp___0~0;havoc __utac_acc__Specification4_spec__1_~tmp~1;havoc __utac_acc__Specification4_spec__1_~tmp___0~0;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~4;havoc getWaterLevel_~retValue_acc~4;getWaterLevel_~retValue_acc~4 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~4; 68#L269true __utac_acc__Specification4_spec__1_#t~ret19 := getWaterLevel_#res;__utac_acc__Specification4_spec__1_~tmp~1 := __utac_acc__Specification4_spec__1_#t~ret19;havoc __utac_acc__Specification4_spec__1_#t~ret19; 35#L283true assume !(0 == __utac_acc__Specification4_spec__1_~tmp~1); 9#L283-1true [2021-08-27 16:14:30,007 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 16:14:30,008 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 1 times [2021-08-27 16:14:30,013 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 16:14:30,013 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2100475223] [2021-08-27 16:14:30,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 16:14:30,014 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 16:14:30,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 16:14:30,151 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 16:14:30,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 16:14:30,227 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 16:14:30,229 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 16:14:30,230 INFO L82 PathProgramCache]: Analyzing trace with hash -1673310517, now seen corresponding path program 1 times [2021-08-27 16:14:30,230 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 16:14:30,230 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [323934600] [2021-08-27 16:14:30,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 16:14:30,230 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 16:14:30,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 16:14:30,235 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 16:14:30,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 16:14:30,241 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 16:14:30,242 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 16:14:30,242 INFO L82 PathProgramCache]: Analyzing trace with hash 40968421, now seen corresponding path program 1 times [2021-08-27 16:14:30,242 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 16:14:30,242 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1941403595] [2021-08-27 16:14:30,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 16:14:30,243 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 16:14:30,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 16:14:30,322 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 16:14:30,323 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 16:14:30,323 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1941403595] [2021-08-27 16:14:30,323 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1941403595] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-27 16:14:30,324 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-27 16:14:30,324 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-08-27 16:14:30,324 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1608296686] [2021-08-27 16:14:30,414 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 16:14:30,423 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-08-27 16:14:30,425 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-08-27 16:14:30,427 INFO L87 Difference]: Start difference. First operand has 68 states, 67 states have (on average 1.5223880597014925) internal successors, (102), 67 states have internal predecessors, (102), 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 16:14:30,592 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 16:14:30,593 INFO L93 Difference]: Finished difference Result 180 states and 246 transitions. [2021-08-27 16:14:30,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-08-27 16:14:30,595 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 180 states and 246 transitions. [2021-08-27 16:14:30,604 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 113 [2021-08-27 16:14:30,610 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 180 states to 159 states and 225 transitions. [2021-08-27 16:14:30,611 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 159 [2021-08-27 16:14:30,613 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 159 [2021-08-27 16:14:30,613 INFO L73 IsDeterministic]: Start isDeterministic. Operand 159 states and 225 transitions. [2021-08-27 16:14:30,614 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-27 16:14:30,615 INFO L681 BuchiCegarLoop]: Abstraction has 159 states and 225 transitions. [2021-08-27 16:14:30,625 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 159 states and 225 transitions. [2021-08-27 16:14:30,642 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 159 to 102. [2021-08-27 16:14:30,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 102 states, 102 states have (on average 1.411764705882353) internal successors, (144), 101 states have internal predecessors, (144), 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 16:14:30,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 144 transitions. [2021-08-27 16:14:30,649 INFO L704 BuchiCegarLoop]: Abstraction has 102 states and 144 transitions. [2021-08-27 16:14:30,649 INFO L587 BuchiCegarLoop]: Abstraction has 102 states and 144 transitions. [2021-08-27 16:14:30,649 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-08-27 16:14:30,649 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 102 states and 144 transitions. [2021-08-27 16:14:30,653 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 72 [2021-08-27 16:14:30,653 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-27 16:14:30,653 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-27 16:14:30,655 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-08-27 16:14:30,655 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 16:14:30,655 INFO L791 eck$LassoCheckResult]: Stem: 327#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(31);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);call #t~string10.base, #t~string10.offset := #Ultimate.allocOnStack(13);call #t~string12.base, #t~string12.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string12.base, #t~string12.offset, 1);call write~init~int(77, #t~string12.base, 1 + #t~string12.offset, 1);call write~init~int(101, #t~string12.base, 2 + #t~string12.offset, 1);call write~init~int(116, #t~string12.base, 3 + #t~string12.offset, 1);call write~init~int(104, #t~string12.base, 4 + #t~string12.offset, 1);call write~init~int(58, #t~string12.base, 5 + #t~string12.offset, 1);call write~init~int(0, #t~string12.base, 6 + #t~string12.offset, 1);call #t~string14.base, #t~string14.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string14.base, #t~string14.offset, 1);call write~init~int(82, #t~string14.base, 1 + #t~string14.offset, 1);call write~init~int(73, #t~string14.base, 2 + #t~string14.offset, 1);call write~init~int(84, #t~string14.base, 3 + #t~string14.offset, 1);call write~init~int(0, #t~string14.base, 4 + #t~string14.offset, 1);call #t~string16.base, #t~string16.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string16.base, #t~string16.offset, 1);call write~init~int(75, #t~string16.base, 1 + #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 2 + #t~string16.offset, 1);call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string18.base, #t~string18.offset, 1);call write~init~int(0, #t~string18.base, 1 + #t~string18.offset, 1);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(30);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(9);call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(21);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(30);call #t~string43.base, #t~string43.offset := #Ultimate.allocOnStack(9);call #t~string44.base, #t~string44.offset := #Ultimate.allocOnStack(21);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(30);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(9);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(25);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(30);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(9);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(25);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(13);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string65.base, #t~string65.offset, 1);call write~init~int(110, #t~string65.base, 1 + #t~string65.offset, 1);call write~init~int(0, #t~string65.base, 2 + #t~string65.offset, 1);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string67.base, #t~string67.offset, 1);call write~init~int(102, #t~string67.base, 1 + #t~string67.offset, 1);call write~init~int(102, #t~string67.base, 2 + #t~string67.offset, 1);call write~init~int(0, #t~string67.base, 3 + #t~string67.offset, 1);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string69.base, #t~string69.offset, 1);call write~init~int(80, #t~string69.base, 1 + #t~string69.offset, 1);call write~init~int(117, #t~string69.base, 2 + #t~string69.offset, 1);call write~init~int(109, #t~string69.base, 3 + #t~string69.offset, 1);call write~init~int(112, #t~string69.base, 4 + #t~string69.offset, 1);call write~init~int(58, #t~string69.base, 5 + #t~string69.offset, 1);call write~init~int(0, #t~string69.base, 6 + #t~string69.offset, 1);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string71.base, #t~string71.offset, 1);call write~init~int(110, #t~string71.base, 1 + #t~string71.offset, 1);call write~init~int(0, #t~string71.base, 2 + #t~string71.offset, 1);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string73.base, #t~string73.offset, 1);call write~init~int(102, #t~string73.base, 1 + #t~string73.offset, 1);call write~init~int(102, #t~string73.base, 2 + #t~string73.offset, 1);call write~init~int(0, #t~string73.base, 3 + #t~string73.offset, 1);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string75.base, #t~string75.offset, 1);call write~init~int(32, #t~string75.base, 1 + #t~string75.offset, 1);call write~init~int(0, #t~string75.base, 2 + #t~string75.offset, 1);call #t~string77.base, #t~string77.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string77.base, #t~string77.offset, 1);call write~init~int(0, #t~string77.base, 1 + #t~string77.offset, 1);~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1; 323#L-1 havoc main_#res;havoc main_#t~ret8, main_~retValue_acc~2, main_~tmp~0;havoc main_~retValue_acc~2;havoc main_~tmp~0; 324#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; 326#L75 main_#t~ret8 := valid_product_#res;main_~tmp~0 := main_#t~ret8;havoc main_#t~ret8; 305#L167 assume 0 != main_~tmp~0; 306#L143 havoc test_#t~nondet56, test_#t~nondet57, test_#t~nondet58, test_#t~nondet59, test_~splverifierCounter~0, test_~tmp~5, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~5;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 278#L283-1 [2021-08-27 16:14:30,655 INFO L793 eck$LassoCheckResult]: Loop: 278#L283-1 assume !false; 279#L679 assume test_~splverifierCounter~0 < 4; 320#L680 test_~tmp~5 := test_#t~nondet56;havoc test_#t~nondet56; 319#L688 assume !(0 != test_~tmp~5); 282#L688-1 test_~tmp___0~1 := test_#t~nondet57;havoc test_#t~nondet57; 295#L698 assume !(0 != test_~tmp___0~1); 298#L698-1 test_~tmp___2~0 := test_#t~nondet58;havoc test_#t~nondet58; 296#L708 assume 0 != test_~tmp___2~0; 293#L714-1 assume !(0 != ~pumpRunning~0); 310#L744 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret60, processEnvironment_~tmp~6;havoc processEnvironment_~tmp~6; 316#L776 assume !(0 != ~pumpRunning~0); 273#L751 havoc __utac_acc__Specification4_spec__1_#t~ret19, __utac_acc__Specification4_spec__1_#t~ret20, __utac_acc__Specification4_spec__1_~tmp~1, __utac_acc__Specification4_spec__1_~tmp___0~0;havoc __utac_acc__Specification4_spec__1_~tmp~1;havoc __utac_acc__Specification4_spec__1_~tmp___0~0;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~4;havoc getWaterLevel_~retValue_acc~4;getWaterLevel_~retValue_acc~4 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~4; 308#L269 __utac_acc__Specification4_spec__1_#t~ret19 := getWaterLevel_#res;__utac_acc__Specification4_spec__1_~tmp~1 := __utac_acc__Specification4_spec__1_#t~ret19;havoc __utac_acc__Specification4_spec__1_#t~ret19; 314#L283 assume !(0 == __utac_acc__Specification4_spec__1_~tmp~1); 278#L283-1 [2021-08-27 16:14:30,657 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 16:14:30,657 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 2 times [2021-08-27 16:14:30,657 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 16:14:30,657 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [862137652] [2021-08-27 16:14:30,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 16:14:30,658 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 16:14:30,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 16:14:30,705 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 16:14:30,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 16:14:30,769 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 16:14:30,772 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 16:14:30,773 INFO L82 PathProgramCache]: Analyzing trace with hash -353546757, now seen corresponding path program 1 times [2021-08-27 16:14:30,773 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 16:14:30,773 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1355422387] [2021-08-27 16:14:30,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 16:14:30,774 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 16:14:30,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 16:14:30,778 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 16:14:30,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 16:14:30,783 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 16:14:30,786 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 16:14:30,787 INFO L82 PathProgramCache]: Analyzing trace with hash 1249492769, now seen corresponding path program 1 times [2021-08-27 16:14:30,787 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 16:14:30,787 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [308103296] [2021-08-27 16:14:30,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 16:14:30,788 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 16:14:30,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 16:14:30,820 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 16:14:30,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 16:14:30,884 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 16:15:11,398 WARN L207 SmtUtils]: Spent 40.41 s on a formula simplification. DAG size of input: 491 DAG size of output: 433 [2021-08-27 16:15:51,817 WARN L207 SmtUtils]: Spent 20.21 s on a formula simplification that was a NOOP. DAG size: 433 [2021-08-27 16:15:51,934 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 27.08 04:15:51 BoogieIcfgContainer [2021-08-27 16:15:51,934 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-08-27 16:15:51,935 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-08-27 16:15:51,935 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-08-27 16:15:51,935 INFO L275 PluginConnector]: Witness Printer initialized [2021-08-27 16:15:51,935 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 04:14:29" (3/4) ... [2021-08-27 16:15:51,937 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2021-08-27 16:15:51,965 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-08-27 16:15:51,965 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-08-27 16:15:51,966 INFO L168 Benchmark]: Toolchain (without parser) took 82963.49 ms. Allocated memory was 54.5 MB in the beginning and 81.8 MB in the end (delta: 27.3 MB). Free memory was 36.9 MB in the beginning and 19.2 MB in the end (delta: 17.7 MB). Peak memory consumption was 45.2 MB. Max. memory is 16.1 GB. [2021-08-27 16:15:51,966 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 44.0 MB. Free memory was 26.6 MB in the beginning and 26.6 MB in the end (delta: 34.9 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-08-27 16:15:51,966 INFO L168 Benchmark]: CACSL2BoogieTranslator took 387.23 ms. Allocated memory is still 54.5 MB. Free memory was 36.8 MB in the beginning and 30.9 MB in the end (delta: 5.9 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-08-27 16:15:51,967 INFO L168 Benchmark]: Boogie Procedure Inliner took 57.64 ms. Allocated memory is still 54.5 MB. Free memory was 30.7 MB in the beginning and 28.0 MB in the end (delta: 2.7 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-08-27 16:15:51,967 INFO L168 Benchmark]: Boogie Preprocessor took 20.21 ms. Allocated memory is still 54.5 MB. Free memory was 28.0 MB in the beginning and 25.9 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-08-27 16:15:51,968 INFO L168 Benchmark]: RCFGBuilder took 469.69 ms. Allocated memory was 54.5 MB in the beginning and 67.1 MB in the end (delta: 12.6 MB). Free memory was 25.9 MB in the beginning and 46.0 MB in the end (delta: -20.1 MB). Peak memory consumption was 9.2 MB. Max. memory is 16.1 GB. [2021-08-27 16:15:51,968 INFO L168 Benchmark]: BuchiAutomizer took 81994.52 ms. Allocated memory was 67.1 MB in the beginning and 81.8 MB in the end (delta: 14.7 MB). Free memory was 46.0 MB in the beginning and 21.3 MB in the end (delta: 24.8 MB). Peak memory consumption was 50.0 MB. Max. memory is 16.1 GB. [2021-08-27 16:15:51,969 INFO L168 Benchmark]: Witness Printer took 30.35 ms. Allocated memory is still 81.8 MB. Free memory was 21.3 MB in the beginning and 19.2 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-08-27 16:15:51,971 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 44.0 MB. Free memory was 26.6 MB in the beginning and 26.6 MB in the end (delta: 34.9 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 387.23 ms. Allocated memory is still 54.5 MB. Free memory was 36.8 MB in the beginning and 30.9 MB in the end (delta: 5.9 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 57.64 ms. Allocated memory is still 54.5 MB. Free memory was 30.7 MB in the beginning and 28.0 MB in the end (delta: 2.7 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 20.21 ms. Allocated memory is still 54.5 MB. Free memory was 28.0 MB in the beginning and 25.9 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 469.69 ms. Allocated memory was 54.5 MB in the beginning and 67.1 MB in the end (delta: 12.6 MB). Free memory was 25.9 MB in the beginning and 46.0 MB in the end (delta: -20.1 MB). Peak memory consumption was 9.2 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 81994.52 ms. Allocated memory was 67.1 MB in the beginning and 81.8 MB in the end (delta: 14.7 MB). Free memory was 46.0 MB in the beginning and 21.3 MB in the end (delta: 24.8 MB). Peak memory consumption was 50.0 MB. Max. memory is 16.1 GB. * Witness Printer took 30.35 ms. Allocated memory is still 81.8 MB. Free memory was 21.3 MB in the beginning and 19.2 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 1 terminating modules (1 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.1 modules have a trivial ranking function, the largest among these consists of 6 locations. The remainder module has 102 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 81.9s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 81.6s. 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 25.7ms AutomataMinimizationTime, 1 MinimizatonAttempts, 57 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 102 states and ocurred in iteration 1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 89 SDtfs, 334 SDslu, 497 SDs, 0 SdLazy, 42 SolverSat, 9 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 93.9ms 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: 678]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=16574} State at position 1 is {NULL=0, NULL=22974, NULL=0, retValue_acc=0, NULL=16574, NULL=0, NULL=22984, NULL=0, NULL=0, NULL=22964, NULL=0, NULL=0, NULL=22985, methaneLevelCritical=0, NULL=0, NULL=0, tmp=0, NULL=22969, NULL=0, tmp___1=0, NULL=0, NULL=0, tmp___0=0, NULL=22967, cleanupTimeShifts=4, NULL=22965, NULL=22961, NULL=22982, NULL=22968, NULL=0, systemActive=1, waterLevel=1, NULL=22983, \result=1, NULL=0, NULL=0, NULL=0, NULL=22981, NULL=0, NULL=22971, NULL=0, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@522afb73=0, NULL=22978, \result=1, NULL=22973, head=0, pumpRunning=0, tmp=1, NULL=22962, \result=0, NULL=22975, NULL=0, NULL=0, NULL=0, NULL=22977, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6c745a66=0, NULL=22972, tmp=1, NULL=0, NULL=0, NULL=16575, NULL=0, NULL=22979, retValue_acc=1, tmp___2=50, NULL=0, retValue_acc=1, tmp___0=0, splverifierCounter=0, NULL=0, NULL=22960, NULL=22980, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@a6c46e6=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@32a6d090=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@414c067b=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@34e8075a=50, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2aea725e=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@210e1d24=0, head=0, tmp=0, NULL=0, NULL=22966, NULL=22963, NULL=22970, NULL=0, NULL=16576, NULL=22976} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L80] int cleanupTimeShifts = 4; [L194] int waterLevel = 1; [L195] int methaneLevelCritical = 0; [L470] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L737] int pumpRunning = 0; [L738] int systemActive = 1; [L158] int retValue_acc ; [L159] int tmp ; [L71] int retValue_acc ; [L74] retValue_acc = 1 [L75] return (retValue_acc); [L165] tmp = valid_product() [L167] COND TRUE \read(tmp) [L669] int splverifierCounter ; [L670] int tmp ; [L671] int tmp___0 ; [L672] int tmp___1 ; [L673] int tmp___2 ; [L676] splverifierCounter = 0 Loop: [L678] COND TRUE 1 [L680] COND TRUE splverifierCounter < 4 [L686] tmp = __VERIFIER_nondet_int() [L688] COND FALSE !(\read(tmp)) [L696] tmp___0 = __VERIFIER_nondet_int() [L698] COND FALSE !(\read(tmp___0)) [L706] tmp___2 = __VERIFIER_nondet_int() [L708] COND TRUE \read(tmp___2) [L744] COND FALSE !(\read(pumpRunning)) [L751] COND TRUE \read(systemActive) [L773] int tmp ; [L776] COND FALSE !(\read(pumpRunning)) [L276] int tmp ; [L277] int tmp___0 ; [L265] int retValue_acc ; [L268] retValue_acc = waterLevel [L269] return (retValue_acc); [L281] tmp = getWaterLevel() [L283] COND FALSE !(tmp == 0) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2021-08-27 16:15:52,017 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...