./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/minepump_spec1_product04.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 8d31f386 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_product04.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 4ac176d5f6a200147241aca05fd00270bccec34f ......................................................................................................................................................................................................................................................................................................................................................................................... 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-wip.dd.multireach-323-8d31f38 [2021-07-06 20:09:20,248 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-07-06 20:09:20,250 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-07-06 20:09:20,282 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-07-06 20:09:20,282 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-07-06 20:09:20,286 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-07-06 20:09:20,287 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-07-06 20:09:20,290 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-07-06 20:09:20,292 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-07-06 20:09:20,295 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-07-06 20:09:20,296 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-07-06 20:09:20,297 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-07-06 20:09:20,297 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-07-06 20:09:20,299 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-07-06 20:09:20,300 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-07-06 20:09:20,301 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-07-06 20:09:20,302 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-07-06 20:09:20,303 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-07-06 20:09:20,304 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-07-06 20:09:20,309 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-07-06 20:09:20,309 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-07-06 20:09:20,310 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-07-06 20:09:20,311 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-07-06 20:09:20,312 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-07-06 20:09:20,317 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-07-06 20:09:20,317 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-07-06 20:09:20,317 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-07-06 20:09:20,318 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-07-06 20:09:20,318 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-07-06 20:09:20,319 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-07-06 20:09:20,319 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-07-06 20:09:20,319 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-07-06 20:09:20,320 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-07-06 20:09:20,321 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-07-06 20:09:20,322 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-07-06 20:09:20,322 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-07-06 20:09:20,322 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-07-06 20:09:20,322 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-07-06 20:09:20,323 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-07-06 20:09:20,324 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-07-06 20:09:20,324 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-07-06 20:09:20,327 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-07-06 20:09:20,354 INFO L113 SettingsManager]: Loading preferences was successful [2021-07-06 20:09:20,354 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-07-06 20:09:20,356 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-07-06 20:09:20,356 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-07-06 20:09:20,356 INFO L138 SettingsManager]: * Use SBE=true [2021-07-06 20:09:20,356 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-07-06 20:09:20,356 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-07-06 20:09:20,356 INFO L138 SettingsManager]: * Use old map elimination=false [2021-07-06 20:09:20,356 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-07-06 20:09:20,356 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-07-06 20:09:20,357 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-07-06 20:09:20,357 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-07-06 20:09:20,357 INFO L138 SettingsManager]: * sizeof long=4 [2021-07-06 20:09:20,357 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-07-06 20:09:20,357 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-07-06 20:09:20,358 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-07-06 20:09:20,358 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-07-06 20:09:20,358 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-07-06 20:09:20,358 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-07-06 20:09:20,358 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-07-06 20:09:20,358 INFO L138 SettingsManager]: * sizeof long double=12 [2021-07-06 20:09:20,358 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-07-06 20:09:20,358 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-07-06 20:09:20,358 INFO L138 SettingsManager]: * Use constant arrays=true [2021-07-06 20:09:20,358 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-07-06 20:09:20,358 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-07-06 20:09:20,359 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-07-06 20:09:20,359 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-07-06 20:09:20,359 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-07-06 20:09:20,359 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-07-06 20:09:20,359 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-07-06 20:09:20,360 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4ac176d5f6a200147241aca05fd00270bccec34f [2021-07-06 20:09:20,631 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-07-06 20:09:20,656 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-07-06 20:09:20,658 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-07-06 20:09:20,658 INFO L271 PluginConnector]: Initializing CDTParser... [2021-07-06 20:09:20,659 INFO L275 PluginConnector]: CDTParser initialized [2021-07-06 20:09:20,659 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec1_product04.cil.c [2021-07-06 20:09:20,728 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ec71670da/8b730fae2c9f4117beef05871e7dcb48/FLAGeae6b59bc [2021-07-06 20:09:21,121 INFO L306 CDTParser]: Found 1 translation units. [2021-07-06 20:09:21,122 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec1_product04.cil.c [2021-07-06 20:09:21,135 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ec71670da/8b730fae2c9f4117beef05871e7dcb48/FLAGeae6b59bc [2021-07-06 20:09:21,147 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ec71670da/8b730fae2c9f4117beef05871e7dcb48 [2021-07-06 20:09:21,148 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-07-06 20:09:21,150 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-07-06 20:09:21,152 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-07-06 20:09:21,152 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-07-06 20:09:21,155 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-07-06 20:09:21,155 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.07 08:09:21" (1/1) ... [2021-07-06 20:09:21,156 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5dd12e3e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 08:09:21, skipping insertion in model container [2021-07-06 20:09:21,156 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.07 08:09:21" (1/1) ... [2021-07-06 20:09:21,161 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-07-06 20:09:21,197 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-07-06 20:09:21,306 WARN L224 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_product04.cil.c[1281,1294] [2021-07-06 20:09:21,476 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-07-06 20:09:21,503 INFO L203 MainTranslator]: Completed pre-run [2021-07-06 20:09:21,534 WARN L224 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_product04.cil.c[1281,1294] [2021-07-06 20:09:21,593 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-07-06 20:09:21,629 INFO L208 MainTranslator]: Completed translation [2021-07-06 20:09:21,631 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 08:09:21 WrapperNode [2021-07-06 20:09:21,631 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-07-06 20:09:21,632 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-07-06 20:09:21,632 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-07-06 20:09:21,632 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-07-06 20:09:21,649 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 08:09:21" (1/1) ... [2021-07-06 20:09:21,672 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 08:09:21" (1/1) ... [2021-07-06 20:09:21,726 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-07-06 20:09:21,728 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-07-06 20:09:21,728 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-07-06 20:09:21,728 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-07-06 20:09:21,734 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 08:09:21" (1/1) ... [2021-07-06 20:09:21,734 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 08:09:21" (1/1) ... [2021-07-06 20:09:21,740 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 08:09:21" (1/1) ... [2021-07-06 20:09:21,741 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 08:09:21" (1/1) ... [2021-07-06 20:09:21,755 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 08:09:21" (1/1) ... [2021-07-06 20:09:21,780 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 08:09:21" (1/1) ... [2021-07-06 20:09:21,782 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 08:09:21" (1/1) ... [2021-07-06 20:09:21,787 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-07-06 20:09:21,788 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-07-06 20:09:21,789 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-07-06 20:09:21,789 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-07-06 20:09:21,790 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 08:09:21" (1/1) ... [2021-07-06 20:09:21,794 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-07-06 20:09:21,817 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-07-06 20:09:21,834 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) [2021-07-06 20:09:21,845 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 [2021-07-06 20:09:21,874 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-07-06 20:09:21,874 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-07-06 20:09:21,875 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-07-06 20:09:21,875 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-07-06 20:09:22,477 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-07-06 20:09:22,477 INFO L299 CfgBuilder]: Removed 72 assume(true) statements. [2021-07-06 20:09:22,478 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.07 08:09:22 BoogieIcfgContainer [2021-07-06 20:09:22,478 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-07-06 20:09:22,479 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-07-06 20:09:22,479 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-07-06 20:09:22,481 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-07-06 20:09:22,481 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-07-06 20:09:22,482 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 06.07 08:09:21" (1/3) ... [2021-07-06 20:09:22,482 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@21785e80 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 06.07 08:09:22, skipping insertion in model container [2021-07-06 20:09:22,482 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-07-06 20:09:22,482 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 08:09:21" (2/3) ... [2021-07-06 20:09:22,483 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@21785e80 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 06.07 08:09:22, skipping insertion in model container [2021-07-06 20:09:22,483 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-07-06 20:09:22,483 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.07 08:09:22" (3/3) ... [2021-07-06 20:09:22,483 INFO L389 chiAutomizerObserver]: Analyzing ICFG minepump_spec1_product04.cil.c [2021-07-06 20:09:22,517 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-07-06 20:09:22,517 INFO L360 BuchiCegarLoop]: Hoare is false [2021-07-06 20:09:22,518 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-07-06 20:09:22,518 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-07-06 20:09:22,518 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-07-06 20:09:22,518 INFO L364 BuchiCegarLoop]: Difference is false [2021-07-06 20:09:22,518 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-07-06 20:09:22,518 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-07-06 20:09:22,530 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 56 states, 55 states have (on average 1.5272727272727273) internal successors, (84), 55 states have internal predecessors, (84), 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) [2021-07-06 20:09:22,544 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 35 [2021-07-06 20:09:22,544 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-07-06 20:09:22,544 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-07-06 20:09:22,549 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-07-06 20:09:22,549 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-06 20:09:22,549 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-07-06 20:09:22,549 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 56 states, 55 states have (on average 1.5272727272727273) internal successors, (84), 55 states have internal predecessors, (84), 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) [2021-07-06 20:09:22,552 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 35 [2021-07-06 20:09:22,552 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-07-06 20:09:22,552 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-07-06 20:09:22,552 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-07-06 20:09:22,552 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-06 20:09:22,555 INFO L791 eck$LassoCheckResult]: Stem: 26#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~string13.base, #t~string13.offset := #Ultimate.allocOnStack(13);call #t~string15.base, #t~string15.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string15.base, #t~string15.offset, 1);call write~init~int(110, #t~string15.base, 1 + #t~string15.offset, 1);call write~init~int(0, #t~string15.base, 2 + #t~string15.offset, 1);call #t~string17.base, #t~string17.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string17.base, #t~string17.offset, 1);call write~init~int(102, #t~string17.base, 1 + #t~string17.offset, 1);call write~init~int(102, #t~string17.base, 2 + #t~string17.offset, 1);call write~init~int(0, #t~string17.base, 3 + #t~string17.offset, 1);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string19.base, #t~string19.offset, 1);call write~init~int(80, #t~string19.base, 1 + #t~string19.offset, 1);call write~init~int(117, #t~string19.base, 2 + #t~string19.offset, 1);call write~init~int(109, #t~string19.base, 3 + #t~string19.offset, 1);call write~init~int(112, #t~string19.base, 4 + #t~string19.offset, 1);call write~init~int(58, #t~string19.base, 5 + #t~string19.offset, 1);call write~init~int(0, #t~string19.base, 6 + #t~string19.offset, 1);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string21.base, #t~string21.offset, 1);call write~init~int(110, #t~string21.base, 1 + #t~string21.offset, 1);call write~init~int(0, #t~string21.base, 2 + #t~string21.offset, 1);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string23.base, #t~string23.offset, 1);call write~init~int(102, #t~string23.base, 1 + #t~string23.offset, 1);call write~init~int(102, #t~string23.base, 2 + #t~string23.offset, 1);call write~init~int(0, #t~string23.base, 3 + #t~string23.offset, 1);call #t~string25.base, #t~string25.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string25.base, #t~string25.offset, 1);call write~init~int(32, #t~string25.base, 1 + #t~string25.offset, 1);call write~init~int(0, #t~string25.base, 2 + #t~string25.offset, 1);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string27.base, #t~string27.offset, 1);call write~init~int(0, #t~string27.base, 1 + #t~string27.offset, 1);call #t~string46.base, #t~string46.offset := #Ultimate.allocOnStack(30);call #t~string47.base, #t~string47.offset := #Ultimate.allocOnStack(9);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(21);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(30);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(9);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(21);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(30);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(9);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(25);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(30);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(9);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(25);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(13);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(77, #t~string66.base, 1 + #t~string66.offset, 1);call write~init~int(101, #t~string66.base, 2 + #t~string66.offset, 1);call write~init~int(116, #t~string66.base, 3 + #t~string66.offset, 1);call write~init~int(104, #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(5);call write~init~int(67, #t~string68.base, #t~string68.offset, 1);call write~init~int(82, #t~string68.base, 1 + #t~string68.offset, 1);call write~init~int(73, #t~string68.base, 2 + #t~string68.offset, 1);call write~init~int(84, #t~string68.base, 3 + #t~string68.offset, 1);call write~init~int(0, #t~string68.base, 4 + #t~string68.offset, 1);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string70.base, #t~string70.offset, 1);call write~init~int(75, #t~string70.base, 1 + #t~string70.offset, 1);call write~init~int(0, #t~string70.base, 2 + #t~string70.offset, 1);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string72.base, #t~string72.offset, 1);call write~init~int(0, #t~string72.base, 1 + #t~string72.offset, 1);~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4; 6#L-1true havoc main_#res;havoc main_#t~ret76, main_~retValue_acc~9, main_~tmp~5;havoc main_~retValue_acc~9;havoc main_~tmp~5; 37#L736true havoc valid_product_#res;havoc valid_product_~retValue_acc~8;havoc valid_product_~retValue_acc~8;valid_product_~retValue_acc~8 := 1;valid_product_#res := valid_product_~retValue_acc~8; 42#L744true main_#t~ret76 := valid_product_#res;main_~tmp~5 := main_#t~ret76;havoc main_#t~ret76; 32#L857true assume 0 != main_~tmp~5; 18#L834true havoc test_#t~nondet7, test_#t~nondet8, test_#t~nondet9, test_#t~nondet10, test_~splverifierCounter~0, test_~tmp~0, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~0;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 7#L757-1true [2021-07-06 20:09:22,556 INFO L793 eck$LassoCheckResult]: Loop: 7#L757-1true assume !false; 58#L68true assume test_~splverifierCounter~0 < 4; 3#L69true test_~tmp~0 := test_#t~nondet7;havoc test_#t~nondet7; 30#L77true assume !(0 != test_~tmp~0); 29#L77-1true test_~tmp___0~0 := test_#t~nondet8;havoc test_#t~nondet8; 12#L87true assume !(0 != test_~tmp___0~0); 9#L87-1true test_~tmp___2~0 := test_#t~nondet9;havoc test_#t~nondet9; 52#L97true assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 45#L105-1true assume !(0 != ~pumpRunning~0); 56#L141true assume !(0 != ~systemActive~0); 40#L148true havoc __utac_acc__Specification1_spec__1_#t~ret74, __utac_acc__Specification1_spec__1_#t~ret75, __utac_acc__Specification1_spec__1_~tmp~4, __utac_acc__Specification1_spec__1_~tmp___0~1;havoc __utac_acc__Specification1_spec__1_~tmp~4;havoc __utac_acc__Specification1_spec__1_~tmp___0~1;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~5;havoc isMethaneLevelCritical_~retValue_acc~5;isMethaneLevelCritical_~retValue_acc~5 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~5; 34#L674true __utac_acc__Specification1_spec__1_#t~ret74 := isMethaneLevelCritical_#res;__utac_acc__Specification1_spec__1_~tmp~4 := __utac_acc__Specification1_spec__1_#t~ret74;havoc __utac_acc__Specification1_spec__1_#t~ret74; 23#L757true assume !(0 != __utac_acc__Specification1_spec__1_~tmp~4); 7#L757-1true [2021-07-06 20:09:22,559 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-06 20:09:22,559 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 1 times [2021-07-06 20:09:22,565 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-06 20:09:22,565 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2087703278] [2021-07-06 20:09:22,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-06 20:09:22,566 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-07-06 20:09:22,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-06 20:09:22,686 INFO L224 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-06 20:09:22,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-06 20:09:22,738 INFO L224 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-06 20:09:22,760 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-07-06 20:09:22,762 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-06 20:09:22,762 INFO L82 PathProgramCache]: Analyzing trace with hash -1672941108, now seen corresponding path program 1 times [2021-07-06 20:09:22,762 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-06 20:09:22,762 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2097812643] [2021-07-06 20:09:22,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-06 20:09:22,763 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-07-06 20:09:22,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-06 20:09:22,794 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 20:09:22,795 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-06 20:09:22,796 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 20:09:22,796 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-06 20:09:22,802 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 20:09:22,803 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-06 20:09:22,804 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-06 20:09:22,804 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-06 20:09:22,804 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2097812643] [2021-07-06 20:09:22,804 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2097812643] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-06 20:09:22,805 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-06 20:09:22,805 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-07-06 20:09:22,805 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [316896216] [2021-07-06 20:09:22,808 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-07-06 20:09:22,809 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-06 20:09:22,817 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-07-06 20:09:22,817 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-07-06 20:09:22,819 INFO L87 Difference]: Start difference. First operand has 56 states, 55 states have (on average 1.5272727272727273) internal successors, (84), 55 states have internal predecessors, (84), 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) [2021-07-06 20:09:22,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-06 20:09:22,850 INFO L93 Difference]: Finished difference Result 106 states and 144 transitions. [2021-07-06 20:09:22,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-06 20:09:22,852 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 106 states and 144 transitions. [2021-07-06 20:09:22,854 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 66 [2021-07-06 20:09:22,858 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 106 states to 92 states and 129 transitions. [2021-07-06 20:09:22,859 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 92 [2021-07-06 20:09:22,859 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 92 [2021-07-06 20:09:22,859 INFO L73 IsDeterministic]: Start isDeterministic. Operand 92 states and 129 transitions. [2021-07-06 20:09:22,860 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-07-06 20:09:22,860 INFO L681 BuchiCegarLoop]: Abstraction has 92 states and 129 transitions. [2021-07-06 20:09:22,869 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states and 129 transitions. [2021-07-06 20:09:22,877 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 90. [2021-07-06 20:09:22,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 90 states, 90 states have (on average 1.4) internal successors, (126), 89 states have internal predecessors, (126), 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) [2021-07-06 20:09:22,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 126 transitions. [2021-07-06 20:09:22,880 INFO L704 BuchiCegarLoop]: Abstraction has 90 states and 126 transitions. [2021-07-06 20:09:22,880 INFO L587 BuchiCegarLoop]: Abstraction has 90 states and 126 transitions. [2021-07-06 20:09:22,880 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-07-06 20:09:22,880 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 90 states and 126 transitions. [2021-07-06 20:09:22,881 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 64 [2021-07-06 20:09:22,881 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-07-06 20:09:22,881 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-07-06 20:09:22,882 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-07-06 20:09:22,882 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-06 20:09:22,882 INFO L791 eck$LassoCheckResult]: Stem: 204#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~string13.base, #t~string13.offset := #Ultimate.allocOnStack(13);call #t~string15.base, #t~string15.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string15.base, #t~string15.offset, 1);call write~init~int(110, #t~string15.base, 1 + #t~string15.offset, 1);call write~init~int(0, #t~string15.base, 2 + #t~string15.offset, 1);call #t~string17.base, #t~string17.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string17.base, #t~string17.offset, 1);call write~init~int(102, #t~string17.base, 1 + #t~string17.offset, 1);call write~init~int(102, #t~string17.base, 2 + #t~string17.offset, 1);call write~init~int(0, #t~string17.base, 3 + #t~string17.offset, 1);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string19.base, #t~string19.offset, 1);call write~init~int(80, #t~string19.base, 1 + #t~string19.offset, 1);call write~init~int(117, #t~string19.base, 2 + #t~string19.offset, 1);call write~init~int(109, #t~string19.base, 3 + #t~string19.offset, 1);call write~init~int(112, #t~string19.base, 4 + #t~string19.offset, 1);call write~init~int(58, #t~string19.base, 5 + #t~string19.offset, 1);call write~init~int(0, #t~string19.base, 6 + #t~string19.offset, 1);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string21.base, #t~string21.offset, 1);call write~init~int(110, #t~string21.base, 1 + #t~string21.offset, 1);call write~init~int(0, #t~string21.base, 2 + #t~string21.offset, 1);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string23.base, #t~string23.offset, 1);call write~init~int(102, #t~string23.base, 1 + #t~string23.offset, 1);call write~init~int(102, #t~string23.base, 2 + #t~string23.offset, 1);call write~init~int(0, #t~string23.base, 3 + #t~string23.offset, 1);call #t~string25.base, #t~string25.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string25.base, #t~string25.offset, 1);call write~init~int(32, #t~string25.base, 1 + #t~string25.offset, 1);call write~init~int(0, #t~string25.base, 2 + #t~string25.offset, 1);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string27.base, #t~string27.offset, 1);call write~init~int(0, #t~string27.base, 1 + #t~string27.offset, 1);call #t~string46.base, #t~string46.offset := #Ultimate.allocOnStack(30);call #t~string47.base, #t~string47.offset := #Ultimate.allocOnStack(9);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(21);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(30);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(9);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(21);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(30);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(9);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(25);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(30);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(9);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(25);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(13);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(77, #t~string66.base, 1 + #t~string66.offset, 1);call write~init~int(101, #t~string66.base, 2 + #t~string66.offset, 1);call write~init~int(116, #t~string66.base, 3 + #t~string66.offset, 1);call write~init~int(104, #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(5);call write~init~int(67, #t~string68.base, #t~string68.offset, 1);call write~init~int(82, #t~string68.base, 1 + #t~string68.offset, 1);call write~init~int(73, #t~string68.base, 2 + #t~string68.offset, 1);call write~init~int(84, #t~string68.base, 3 + #t~string68.offset, 1);call write~init~int(0, #t~string68.base, 4 + #t~string68.offset, 1);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string70.base, #t~string70.offset, 1);call write~init~int(75, #t~string70.base, 1 + #t~string70.offset, 1);call write~init~int(0, #t~string70.base, 2 + #t~string70.offset, 1);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string72.base, #t~string72.offset, 1);call write~init~int(0, #t~string72.base, 1 + #t~string72.offset, 1);~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4; 175#L-1 havoc main_#res;havoc main_#t~ret76, main_~retValue_acc~9, main_~tmp~5;havoc main_~retValue_acc~9;havoc main_~tmp~5; 176#L736 havoc valid_product_#res;havoc valid_product_~retValue_acc~8;havoc valid_product_~retValue_acc~8;valid_product_~retValue_acc~8 := 1;valid_product_#res := valid_product_~retValue_acc~8; 218#L744 main_#t~ret76 := valid_product_#res;main_~tmp~5 := main_#t~ret76;havoc main_#t~ret76; 212#L857 assume 0 != main_~tmp~5; 191#L834 havoc test_#t~nondet7, test_#t~nondet8, test_#t~nondet9, test_#t~nondet10, test_~splverifierCounter~0, test_~tmp~0, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~0;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 177#L757-1 [2021-07-06 20:09:22,882 INFO L793 eck$LassoCheckResult]: Loop: 177#L757-1 assume !false; 178#L68 assume test_~splverifierCounter~0 < 4; 171#L69 test_~tmp~0 := test_#t~nondet7;havoc test_#t~nondet7; 172#L77 assume !(0 != test_~tmp~0); 247#L77-1 test_~tmp___0~0 := test_#t~nondet8;havoc test_#t~nondet8; 245#L87 assume !(0 != test_~tmp___0~0); 240#L87-1 test_~tmp___2~0 := test_#t~nondet9;havoc test_#t~nondet9; 238#L97 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 224#L105-1 assume !(0 != ~pumpRunning~0); 229#L141 assume 0 != ~systemActive~0; 219#L148 havoc __utac_acc__Specification1_spec__1_#t~ret74, __utac_acc__Specification1_spec__1_#t~ret75, __utac_acc__Specification1_spec__1_~tmp~4, __utac_acc__Specification1_spec__1_~tmp___0~1;havoc __utac_acc__Specification1_spec__1_~tmp~4;havoc __utac_acc__Specification1_spec__1_~tmp___0~1;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~5;havoc isMethaneLevelCritical_~retValue_acc~5;isMethaneLevelCritical_~retValue_acc~5 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~5; 213#L674 __utac_acc__Specification1_spec__1_#t~ret74 := isMethaneLevelCritical_#res;__utac_acc__Specification1_spec__1_~tmp~4 := __utac_acc__Specification1_spec__1_#t~ret74;havoc __utac_acc__Specification1_spec__1_#t~ret74; 199#L757 assume !(0 != __utac_acc__Specification1_spec__1_~tmp~4); 177#L757-1 [2021-07-06 20:09:22,882 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-06 20:09:22,883 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 2 times [2021-07-06 20:09:22,883 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-06 20:09:22,883 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1447218966] [2021-07-06 20:09:22,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-06 20:09:22,883 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-07-06 20:09:22,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-06 20:09:22,923 INFO L224 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-06 20:09:22,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-06 20:09:22,960 INFO L224 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-06 20:09:22,968 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-07-06 20:09:22,969 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-06 20:09:22,969 INFO L82 PathProgramCache]: Analyzing trace with hash -1673030481, now seen corresponding path program 1 times [2021-07-06 20:09:22,969 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-06 20:09:22,969 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2030562342] [2021-07-06 20:09:22,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-06 20:09:22,970 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-07-06 20:09:22,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-06 20:09:22,973 INFO L224 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-06 20:09:22,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-06 20:09:22,975 INFO L224 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-06 20:09:22,977 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-07-06 20:09:22,977 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-06 20:09:22,977 INFO L82 PathProgramCache]: Analyzing trace with hash 41248457, now seen corresponding path program 1 times [2021-07-06 20:09:22,978 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-06 20:09:22,978 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1045473198] [2021-07-06 20:09:22,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-06 20:09:22,978 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-07-06 20:09:23,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-06 20:09:23,019 INFO L224 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-06 20:09:23,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-06 20:09:23,051 INFO L224 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-06 20:09:23,059 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-07-06 20:09:23,103 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 20:09:23,104 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-07-06 20:10:02,207 WARN L205 SmtUtils]: Spent 39.08 s on a formula simplification. DAG size of input: 491 DAG size of output: 433 [2021-07-06 20:10:02,253 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 20:10:02,288 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2127 [2021-07-06 20:10:23,081 WARN L205 SmtUtils]: Spent 20.79 s on a formula simplification that was a NOOP. DAG size: 433 [2021-07-06 20:10:23,236 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 06.07 08:10:23 BoogieIcfgContainer [2021-07-06 20:10:23,236 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-07-06 20:10:23,236 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-07-06 20:10:23,236 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-07-06 20:10:23,237 INFO L275 PluginConnector]: Witness Printer initialized [2021-07-06 20:10:23,238 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.07 08:09:22" (3/4) ... [2021-07-06 20:10:23,240 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2021-07-06 20:10:23,301 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-07-06 20:10:23,310 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-07-06 20:10:23,325 INFO L168 Benchmark]: Toolchain (without parser) took 62174.53 ms. Allocated memory was 67.1 MB in the beginning and 98.6 MB in the end (delta: 31.5 MB). Free memory was 42.5 MB in the beginning and 45.2 MB in the end (delta: -2.6 MB). Peak memory consumption was 29.8 MB. Max. memory is 16.1 GB. [2021-07-06 20:10:23,325 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 54.5 MB. Free memory was 35.8 MB in the beginning and 35.7 MB in the end (delta: 63.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-07-06 20:10:23,325 INFO L168 Benchmark]: CACSL2BoogieTranslator took 479.42 ms. Allocated memory is still 67.1 MB. Free memory was 42.3 MB in the beginning and 40.4 MB in the end (delta: 1.9 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-07-06 20:10:23,326 INFO L168 Benchmark]: Boogie Procedure Inliner took 95.62 ms. Allocated memory is still 67.1 MB. Free memory was 40.4 MB in the beginning and 37.9 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-07-06 20:10:23,326 INFO L168 Benchmark]: Boogie Preprocessor took 59.87 ms. Allocated memory is still 67.1 MB. Free memory was 37.9 MB in the beginning and 36.0 MB in the end (delta: 1.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-07-06 20:10:23,326 INFO L168 Benchmark]: RCFGBuilder took 689.89 ms. Allocated memory was 67.1 MB in the beginning and 81.8 MB in the end (delta: 14.7 MB). Free memory was 36.0 MB in the beginning and 61.0 MB in the end (delta: -25.0 MB). Peak memory consumption was 15.5 MB. Max. memory is 16.1 GB. [2021-07-06 20:10:23,326 INFO L168 Benchmark]: BuchiAutomizer took 60757.09 ms. Allocated memory was 81.8 MB in the beginning and 98.6 MB in the end (delta: 16.8 MB). Free memory was 61.0 MB in the beginning and 47.1 MB in the end (delta: 13.9 MB). Peak memory consumption was 63.3 MB. Max. memory is 16.1 GB. [2021-07-06 20:10:23,327 INFO L168 Benchmark]: Witness Printer took 87.25 ms. Allocated memory is still 98.6 MB. Free memory was 47.1 MB in the beginning and 45.2 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-07-06 20:10:23,328 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 54.5 MB. Free memory was 35.8 MB in the beginning and 35.7 MB in the end (delta: 63.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 479.42 ms. Allocated memory is still 67.1 MB. Free memory was 42.3 MB in the beginning and 40.4 MB in the end (delta: 1.9 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 95.62 ms. Allocated memory is still 67.1 MB. Free memory was 40.4 MB in the beginning and 37.9 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 59.87 ms. Allocated memory is still 67.1 MB. Free memory was 37.9 MB in the beginning and 36.0 MB in the end (delta: 1.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 689.89 ms. Allocated memory was 67.1 MB in the beginning and 81.8 MB in the end (delta: 14.7 MB). Free memory was 36.0 MB in the beginning and 61.0 MB in the end (delta: -25.0 MB). Peak memory consumption was 15.5 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 60757.09 ms. Allocated memory was 81.8 MB in the beginning and 98.6 MB in the end (delta: 16.8 MB). Free memory was 61.0 MB in the beginning and 47.1 MB in the end (delta: 13.9 MB). Peak memory consumption was 63.3 MB. Max. memory is 16.1 GB. * Witness Printer took 87.25 ms. Allocated memory is still 98.6 MB. Free memory was 47.1 MB in the beginning and 45.2 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 1 terminating modules (1 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.1 modules have a trivial ranking function, the largest among these consists of 3 locations. The remainder module has 90 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 60.6s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 60.5s. Construction of modules took 0.0s. Büchi inclusion checks took 0.0s. Highest rank in rank-based complementation 0. Minimization of det autom 1. Minimization of nondet autom 0. Automata minimization 11.0ms AutomataMinimizationTime, 1 MinimizatonAttempts, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 90 states and ocurred in iteration 1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 74 SDtfs, 70 SDslu, 62 SDs, 0 SdLazy, 10 SolverSat, 3 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 14.6ms 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: 67]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=10660} State at position 1 is {NULL=10689, NULL=0, NULL=0, NULL=0, NULL=10662, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@53ca3058=86, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3f0b2176=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@435f773=0, NULL=10660, NULL=10661, NULL=0, retValue_acc=0, NULL=10681, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7c608a22=0, NULL=10685, NULL=10673, methaneLevelCritical=0, NULL=0, NULL=0, NULL=10663, tmp___1=0, NULL=10677, NULL=0, NULL=0, tmp___0=0, cleanupTimeShifts=4, tmp=0, NULL=10668, NULL=10688, NULL=10687, NULL=0, NULL=0, NULL=0, NULL=0, NULL=0, systemActive=1, waterLevel=1, NULL=10682, NULL=0, NULL=10679, retValue_acc=0, tmp___0=0, NULL=0, NULL=10684, NULL=0, NULL=0, NULL=0, NULL=0, NULL=10670, \result=1, head=0, pumpRunning=0, NULL=10686, NULL=10683, \result=0, NULL=10675, NULL=0, NULL=10674, NULL=0, NULL=0, tmp=0, NULL=0, tmp=1, NULL=0, NULL=10666, NULL=0, retValue_acc=1, NULL=10676, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6f222a1e=0, tmp___2=86, splverifierCounter=0, NULL=0, NULL=0, \result=0, NULL=10667, NULL=10671, NULL=10680, head=0, NULL=10664, NULL=10678, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5b773cc8=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7cfb7d54=0, NULL=0, NULL=10669, NULL=0, NULL=10672} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L133] int pumpRunning = 0; [L134] int systemActive = 1; [L433] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L631] int waterLevel = 1; [L632] int methaneLevelCritical = 0; [L775] int cleanupTimeShifts = 4; [L848] int retValue_acc ; [L849] int tmp ; [L740] int retValue_acc ; [L743] retValue_acc = 1 [L744] return (retValue_acc); [L855] tmp = valid_product() [L857] COND TRUE \read(tmp) [L58] int splverifierCounter ; [L59] int tmp ; [L60] int tmp___0 ; [L61] int tmp___1 ; [L62] int tmp___2 ; [L65] splverifierCounter = 0 Loop: [L67] COND TRUE 1 [L69] COND TRUE splverifierCounter < 4 [L75] tmp = __VERIFIER_nondet_int() [L77] COND FALSE !(\read(tmp)) [L85] tmp___0 = __VERIFIER_nondet_int() [L87] COND FALSE !(\read(tmp___0)) [L95] tmp___2 = __VERIFIER_nondet_int() [L97] COND TRUE \read(tmp___2) [L259] systemActive = 1 [L141] COND FALSE !(\read(pumpRunning)) [L148] COND TRUE \read(systemActive) [L750] int tmp ; [L751] int tmp___0 ; [L670] int retValue_acc ; [L673] retValue_acc = methaneLevelCritical [L674] return (retValue_acc); [L755] tmp = isMethaneLevelCritical() [L757] COND FALSE !(\read(tmp)) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2021-07-06 20:10:23,378 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...