./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/minepump_spec1_product12.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_product12.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 3277d87fee4d1f5b2f894e9c3d1b5ae65d241aee ......................................................................................................................................................................................................................................................................................................................................................................................... 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 20:10:21,492 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-07-06 20:10:21,494 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-07-06 20:10:21,517 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-07-06 20:10:21,518 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-07-06 20:10:21,520 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-07-06 20:10:21,521 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-07-06 20:10:21,531 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-07-06 20:10:21,533 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-07-06 20:10:21,536 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-07-06 20:10:21,537 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-07-06 20:10:21,538 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-07-06 20:10:21,538 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-07-06 20:10:21,540 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-07-06 20:10:21,541 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-07-06 20:10:21,542 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-07-06 20:10:21,543 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-07-06 20:10:21,544 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-07-06 20:10:21,545 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-07-06 20:10:21,549 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-07-06 20:10:21,550 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-07-06 20:10:21,551 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-07-06 20:10:21,553 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-07-06 20:10:21,553 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-07-06 20:10:21,558 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-07-06 20:10:21,558 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-07-06 20:10:21,558 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-07-06 20:10:21,559 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-07-06 20:10:21,560 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-07-06 20:10:21,560 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-07-06 20:10:21,560 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-07-06 20:10:21,561 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-07-06 20:10:21,562 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-07-06 20:10:21,562 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-07-06 20:10:21,563 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-07-06 20:10:21,563 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-07-06 20:10:21,564 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-07-06 20:10:21,564 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-07-06 20:10:21,564 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-07-06 20:10:21,565 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-07-06 20:10:21,566 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-07-06 20:10:21,566 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-07-06 20:10:21,597 INFO L113 SettingsManager]: Loading preferences was successful [2021-07-06 20:10:21,598 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-07-06 20:10:21,599 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-07-06 20:10:21,600 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-07-06 20:10:21,600 INFO L138 SettingsManager]: * Use SBE=true [2021-07-06 20:10:21,600 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-07-06 20:10:21,600 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-07-06 20:10:21,600 INFO L138 SettingsManager]: * Use old map elimination=false [2021-07-06 20:10:21,601 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-07-06 20:10:21,601 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-07-06 20:10:21,601 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-07-06 20:10:21,601 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-07-06 20:10:21,602 INFO L138 SettingsManager]: * sizeof long=4 [2021-07-06 20:10:21,602 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-07-06 20:10:21,602 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-07-06 20:10:21,602 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-07-06 20:10:21,602 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-07-06 20:10:21,602 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-07-06 20:10:21,603 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-07-06 20:10:21,603 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-07-06 20:10:21,603 INFO L138 SettingsManager]: * sizeof long double=12 [2021-07-06 20:10:21,603 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-07-06 20:10:21,603 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-07-06 20:10:21,603 INFO L138 SettingsManager]: * Use constant arrays=true [2021-07-06 20:10:21,603 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-07-06 20:10:21,604 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-07-06 20:10:21,604 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-07-06 20:10:21,604 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-07-06 20:10:21,604 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-07-06 20:10:21,604 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-07-06 20:10:21,605 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-07-06 20:10:21,605 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3277d87fee4d1f5b2f894e9c3d1b5ae65d241aee [2021-07-06 20:10:21,851 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-07-06 20:10:21,863 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-07-06 20:10:21,865 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-07-06 20:10:21,866 INFO L271 PluginConnector]: Initializing CDTParser... [2021-07-06 20:10:21,866 INFO L275 PluginConnector]: CDTParser initialized [2021-07-06 20:10:21,867 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec1_product12.cil.c [2021-07-06 20:10:21,904 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/18b29dd03/4b237faf7ee34b58a7679e77b380144b/FLAGbf9d7e27d [2021-07-06 20:10:22,274 INFO L306 CDTParser]: Found 1 translation units. [2021-07-06 20:10:22,275 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec1_product12.cil.c [2021-07-06 20:10:22,284 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/18b29dd03/4b237faf7ee34b58a7679e77b380144b/FLAGbf9d7e27d [2021-07-06 20:10:22,662 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/18b29dd03/4b237faf7ee34b58a7679e77b380144b [2021-07-06 20:10:22,664 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-07-06 20:10:22,665 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-07-06 20:10:22,671 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-07-06 20:10:22,672 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-07-06 20:10:22,674 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-07-06 20:10:22,674 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.07 08:10:22" (1/1) ... [2021-07-06 20:10:22,675 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7dacedac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 08:10:22, skipping insertion in model container [2021-07-06 20:10:22,676 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.07 08:10:22" (1/1) ... [2021-07-06 20:10:22,680 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-07-06 20:10:22,715 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-07-06 20:10:22,841 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_product12.cil.c[4218,4231] [2021-07-06 20:10:22,894 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-07-06 20:10:22,907 INFO L203 MainTranslator]: Completed pre-run [2021-07-06 20:10:22,938 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_product12.cil.c[4218,4231] [2021-07-06 20:10:22,973 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-07-06 20:10:22,993 INFO L208 MainTranslator]: Completed translation [2021-07-06 20:10:22,995 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 08:10:22 WrapperNode [2021-07-06 20:10:22,995 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-07-06 20:10:22,996 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-07-06 20:10:22,996 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-07-06 20:10:22,996 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-07-06 20:10:23,000 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 08:10:22" (1/1) ... [2021-07-06 20:10:23,020 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 08:10:22" (1/1) ... [2021-07-06 20:10:23,044 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-07-06 20:10:23,045 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-07-06 20:10:23,047 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-07-06 20:10:23,047 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-07-06 20:10:23,052 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 08:10:22" (1/1) ... [2021-07-06 20:10:23,052 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 08:10:22" (1/1) ... [2021-07-06 20:10:23,057 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 08:10:22" (1/1) ... [2021-07-06 20:10:23,060 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 08:10:22" (1/1) ... [2021-07-06 20:10:23,063 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 08:10:22" (1/1) ... [2021-07-06 20:10:23,078 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 08:10:22" (1/1) ... [2021-07-06 20:10:23,079 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 08:10:22" (1/1) ... [2021-07-06 20:10:23,080 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-07-06 20:10:23,082 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-07-06 20:10:23,082 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-07-06 20:10:23,082 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-07-06 20:10:23,082 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 08:10:22" (1/1) ... [2021-07-06 20:10:23,086 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-07-06 20:10:23,090 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-07-06 20:10:23,105 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 20:10:23,107 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 20:10:23,141 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-07-06 20:10:23,141 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-07-06 20:10:23,141 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-07-06 20:10:23,141 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-07-06 20:10:23,678 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-07-06 20:10:23,678 INFO L299 CfgBuilder]: Removed 72 assume(true) statements. [2021-07-06 20:10:23,680 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.07 08:10:23 BoogieIcfgContainer [2021-07-06 20:10:23,680 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-07-06 20:10:23,680 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-07-06 20:10:23,680 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-07-06 20:10:23,682 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-07-06 20:10:23,682 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-07-06 20:10:23,683 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 06.07 08:10:22" (1/3) ... [2021-07-06 20:10:23,683 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6ce1b8a4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 06.07 08:10:23, skipping insertion in model container [2021-07-06 20:10:23,683 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-07-06 20:10:23,684 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 08:10:22" (2/3) ... [2021-07-06 20:10:23,684 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6ce1b8a4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 06.07 08:10:23, skipping insertion in model container [2021-07-06 20:10:23,684 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-07-06 20:10:23,684 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.07 08:10:23" (3/3) ... [2021-07-06 20:10:23,685 INFO L389 chiAutomizerObserver]: Analyzing ICFG minepump_spec1_product12.cil.c [2021-07-06 20:10:23,708 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-07-06 20:10:23,708 INFO L360 BuchiCegarLoop]: Hoare is false [2021-07-06 20:10:23,708 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-07-06 20:10:23,708 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-07-06 20:10:23,708 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-07-06 20:10:23,708 INFO L364 BuchiCegarLoop]: Difference is false [2021-07-06 20:10:23,708 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-07-06 20:10:23,708 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-07-06 20:10:23,716 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 20:10:23,731 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 35 [2021-07-06 20:10:23,731 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-07-06 20:10:23,731 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-07-06 20:10:23,735 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-07-06 20:10:23,735 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-06 20:10:23,735 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-07-06 20:10:23,735 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 20:10:23,742 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 35 [2021-07-06 20:10:23,742 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-07-06 20:10:23,742 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-07-06 20:10:23,744 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-07-06 20:10:23,745 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-06 20:10:23,752 INFO L791 eck$LassoCheckResult]: Stem: 31#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~string14.base, #t~string14.offset := #Ultimate.allocOnStack(13);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(110, #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(4);call write~init~int(79, #t~string18.base, #t~string18.offset, 1);call write~init~int(102, #t~string18.base, 1 + #t~string18.offset, 1);call write~init~int(102, #t~string18.base, 2 + #t~string18.offset, 1);call write~init~int(0, #t~string18.base, 3 + #t~string18.offset, 1);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string20.base, #t~string20.offset, 1);call write~init~int(80, #t~string20.base, 1 + #t~string20.offset, 1);call write~init~int(117, #t~string20.base, 2 + #t~string20.offset, 1);call write~init~int(109, #t~string20.base, 3 + #t~string20.offset, 1);call write~init~int(112, #t~string20.base, 4 + #t~string20.offset, 1);call write~init~int(58, #t~string20.base, 5 + #t~string20.offset, 1);call write~init~int(0, #t~string20.base, 6 + #t~string20.offset, 1);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string22.base, #t~string22.offset, 1);call write~init~int(110, #t~string22.base, 1 + #t~string22.offset, 1);call write~init~int(0, #t~string22.base, 2 + #t~string22.offset, 1);call #t~string24.base, #t~string24.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string24.base, #t~string24.offset, 1);call write~init~int(102, #t~string24.base, 1 + #t~string24.offset, 1);call write~init~int(102, #t~string24.base, 2 + #t~string24.offset, 1);call write~init~int(0, #t~string24.base, 3 + #t~string24.offset, 1);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string26.base, #t~string26.offset, 1);call write~init~int(32, #t~string26.base, 1 + #t~string26.offset, 1);call write~init~int(0, #t~string26.base, 2 + #t~string26.offset, 1);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string28.base, #t~string28.offset, 1);call write~init~int(0, #t~string28.base, 1 + #t~string28.offset, 1);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(13);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string32.base, #t~string32.offset, 1);call write~init~int(77, #t~string32.base, 1 + #t~string32.offset, 1);call write~init~int(101, #t~string32.base, 2 + #t~string32.offset, 1);call write~init~int(116, #t~string32.base, 3 + #t~string32.offset, 1);call write~init~int(104, #t~string32.base, 4 + #t~string32.offset, 1);call write~init~int(58, #t~string32.base, 5 + #t~string32.offset, 1);call write~init~int(0, #t~string32.base, 6 + #t~string32.offset, 1);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string34.base, #t~string34.offset, 1);call write~init~int(82, #t~string34.base, 1 + #t~string34.offset, 1);call write~init~int(73, #t~string34.base, 2 + #t~string34.offset, 1);call write~init~int(84, #t~string34.base, 3 + #t~string34.offset, 1);call write~init~int(0, #t~string34.base, 4 + #t~string34.offset, 1);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string36.base, #t~string36.offset, 1);call write~init~int(75, #t~string36.base, 1 + #t~string36.offset, 1);call write~init~int(0, #t~string36.base, 2 + #t~string36.offset, 1);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string38.base, #t~string38.offset, 1);call write~init~int(0, #t~string38.base, 1 + #t~string38.offset, 1);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(30);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(9);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(21);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(30);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(9);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(21);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(30);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(9);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(25);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(30);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(9);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(25);~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4; 13#L-1true havoc main_#res;havoc main_#t~ret77, main_~retValue_acc~9, main_~tmp~6;havoc main_~retValue_acc~9;havoc main_~tmp~6; 22#L388true havoc valid_product_#res;havoc valid_product_~retValue_acc~5;havoc valid_product_~retValue_acc~5;valid_product_~retValue_acc~5 := 1;valid_product_#res := valid_product_~retValue_acc~5; 43#L396true main_#t~ret77 := valid_product_#res;main_~tmp~6 := main_#t~ret77;havoc main_#t~ret77; 44#L875true assume 0 != main_~tmp~6; 14#L852true 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; 5#L409-1true [2021-07-06 20:10:23,753 INFO L793 eck$LassoCheckResult]: Loop: 5#L409-1true assume !false; 26#L59true assume test_~splverifierCounter~0 < 4; 42#L60true test_~tmp~0 := test_#t~nondet7;havoc test_#t~nondet7; 58#L68true assume !(0 != test_~tmp~0); 57#L68-1true test_~tmp___0~0 := test_#t~nondet8;havoc test_#t~nondet8; 50#L78true assume !(0 != test_~tmp___0~0); 49#L78-1true test_~tmp___2~0 := test_#t~nondet9;havoc test_#t~nondet9; 37#L88true assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 46#L96-1true assume !(0 != ~pumpRunning~0); 41#L132true assume !(0 != ~systemActive~0); 32#L139true havoc __utac_acc__Specification1_spec__1_#t~ret40, __utac_acc__Specification1_spec__1_#t~ret41, __utac_acc__Specification1_spec__1_~tmp~2, __utac_acc__Specification1_spec__1_~tmp___0~1;havoc __utac_acc__Specification1_spec__1_~tmp~2;havoc __utac_acc__Specification1_spec__1_~tmp___0~1;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~2;havoc isMethaneLevelCritical_~retValue_acc~2;isMethaneLevelCritical_~retValue_acc~2 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~2; 36#L326true __utac_acc__Specification1_spec__1_#t~ret40 := isMethaneLevelCritical_#res;__utac_acc__Specification1_spec__1_~tmp~2 := __utac_acc__Specification1_spec__1_#t~ret40;havoc __utac_acc__Specification1_spec__1_#t~ret40; 3#L409true assume !(0 != __utac_acc__Specification1_spec__1_~tmp~2); 5#L409-1true [2021-07-06 20:10:23,757 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-06 20:10:23,757 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 1 times [2021-07-06 20:10:23,762 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-06 20:10:23,762 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [509863334] [2021-07-06 20:10:23,763 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-06 20:10:23,763 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-07-06 20:10:23,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-06 20:10:23,938 INFO L224 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-06 20:10:23,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-06 20:10:23,999 INFO L224 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-06 20:10:24,039 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-07-06 20:10:24,046 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-06 20:10:24,048 INFO L82 PathProgramCache]: Analyzing trace with hash -1672941108, now seen corresponding path program 1 times [2021-07-06 20:10:24,048 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-06 20:10:24,049 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [892621599] [2021-07-06 20:10:24,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-06 20:10:24,049 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-07-06 20:10:24,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-06 20:10:24,091 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 20:10:24,092 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-06 20:10:24,094 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 20:10:24,094 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-06 20:10:24,102 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 20:10:24,103 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-06 20:10:24,104 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 20:10:24,105 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-06 20:10:24,105 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [892621599] [2021-07-06 20:10:24,106 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [892621599] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-06 20:10:24,106 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-06 20:10:24,106 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-07-06 20:10:24,106 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1668809291] [2021-07-06 20:10:24,112 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-07-06 20:10:24,112 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-06 20:10:24,121 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-07-06 20:10:24,121 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-07-06 20:10:24,123 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 20:10:24,184 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-06 20:10:24,184 INFO L93 Difference]: Finished difference Result 106 states and 144 transitions. [2021-07-06 20:10:24,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-06 20:10:24,186 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 106 states and 144 transitions. [2021-07-06 20:10:24,195 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 66 [2021-07-06 20:10:24,199 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 106 states to 92 states and 129 transitions. [2021-07-06 20:10:24,200 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 92 [2021-07-06 20:10:24,200 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 92 [2021-07-06 20:10:24,201 INFO L73 IsDeterministic]: Start isDeterministic. Operand 92 states and 129 transitions. [2021-07-06 20:10:24,202 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-07-06 20:10:24,202 INFO L681 BuchiCegarLoop]: Abstraction has 92 states and 129 transitions. [2021-07-06 20:10:24,211 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states and 129 transitions. [2021-07-06 20:10:24,222 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 90. [2021-07-06 20:10:24,224 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 20:10:24,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 126 transitions. [2021-07-06 20:10:24,228 INFO L704 BuchiCegarLoop]: Abstraction has 90 states and 126 transitions. [2021-07-06 20:10:24,228 INFO L587 BuchiCegarLoop]: Abstraction has 90 states and 126 transitions. [2021-07-06 20:10:24,228 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-07-06 20:10:24,228 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 90 states and 126 transitions. [2021-07-06 20:10:24,231 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 64 [2021-07-06 20:10:24,232 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-07-06 20:10:24,232 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-07-06 20:10:24,233 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-07-06 20:10:24,233 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-06 20:10:24,233 INFO L791 eck$LassoCheckResult]: Stem: 207#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~string14.base, #t~string14.offset := #Ultimate.allocOnStack(13);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(110, #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(4);call write~init~int(79, #t~string18.base, #t~string18.offset, 1);call write~init~int(102, #t~string18.base, 1 + #t~string18.offset, 1);call write~init~int(102, #t~string18.base, 2 + #t~string18.offset, 1);call write~init~int(0, #t~string18.base, 3 + #t~string18.offset, 1);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string20.base, #t~string20.offset, 1);call write~init~int(80, #t~string20.base, 1 + #t~string20.offset, 1);call write~init~int(117, #t~string20.base, 2 + #t~string20.offset, 1);call write~init~int(109, #t~string20.base, 3 + #t~string20.offset, 1);call write~init~int(112, #t~string20.base, 4 + #t~string20.offset, 1);call write~init~int(58, #t~string20.base, 5 + #t~string20.offset, 1);call write~init~int(0, #t~string20.base, 6 + #t~string20.offset, 1);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string22.base, #t~string22.offset, 1);call write~init~int(110, #t~string22.base, 1 + #t~string22.offset, 1);call write~init~int(0, #t~string22.base, 2 + #t~string22.offset, 1);call #t~string24.base, #t~string24.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string24.base, #t~string24.offset, 1);call write~init~int(102, #t~string24.base, 1 + #t~string24.offset, 1);call write~init~int(102, #t~string24.base, 2 + #t~string24.offset, 1);call write~init~int(0, #t~string24.base, 3 + #t~string24.offset, 1);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string26.base, #t~string26.offset, 1);call write~init~int(32, #t~string26.base, 1 + #t~string26.offset, 1);call write~init~int(0, #t~string26.base, 2 + #t~string26.offset, 1);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string28.base, #t~string28.offset, 1);call write~init~int(0, #t~string28.base, 1 + #t~string28.offset, 1);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(13);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string32.base, #t~string32.offset, 1);call write~init~int(77, #t~string32.base, 1 + #t~string32.offset, 1);call write~init~int(101, #t~string32.base, 2 + #t~string32.offset, 1);call write~init~int(116, #t~string32.base, 3 + #t~string32.offset, 1);call write~init~int(104, #t~string32.base, 4 + #t~string32.offset, 1);call write~init~int(58, #t~string32.base, 5 + #t~string32.offset, 1);call write~init~int(0, #t~string32.base, 6 + #t~string32.offset, 1);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string34.base, #t~string34.offset, 1);call write~init~int(82, #t~string34.base, 1 + #t~string34.offset, 1);call write~init~int(73, #t~string34.base, 2 + #t~string34.offset, 1);call write~init~int(84, #t~string34.base, 3 + #t~string34.offset, 1);call write~init~int(0, #t~string34.base, 4 + #t~string34.offset, 1);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string36.base, #t~string36.offset, 1);call write~init~int(75, #t~string36.base, 1 + #t~string36.offset, 1);call write~init~int(0, #t~string36.base, 2 + #t~string36.offset, 1);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string38.base, #t~string38.offset, 1);call write~init~int(0, #t~string38.base, 1 + #t~string38.offset, 1);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(30);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(9);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(21);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(30);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(9);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(21);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(30);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(9);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(25);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(30);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(9);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(25);~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4; 191#L-1 havoc main_#res;havoc main_#t~ret77, main_~retValue_acc~9, main_~tmp~6;havoc main_~retValue_acc~9;havoc main_~tmp~6; 192#L388 havoc valid_product_#res;havoc valid_product_~retValue_acc~5;havoc valid_product_~retValue_acc~5;valid_product_~retValue_acc~5 := 1;valid_product_#res := valid_product_~retValue_acc~5; 199#L396 main_#t~ret77 := valid_product_#res;main_~tmp~6 := main_#t~ret77;havoc main_#t~ret77; 222#L875 assume 0 != main_~tmp~6; 193#L852 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; 174#L409-1 [2021-07-06 20:10:24,233 INFO L793 eck$LassoCheckResult]: Loop: 174#L409-1 assume !false; 238#L59 assume test_~splverifierCounter~0 < 4; 220#L60 test_~tmp~0 := test_#t~nondet7;havoc test_#t~nondet7; 221#L68 assume !(0 != test_~tmp~0); 225#L68-1 test_~tmp___0~0 := test_#t~nondet8;havoc test_#t~nondet8; 232#L78 assume !(0 != test_~tmp___0~0); 226#L78-1 test_~tmp___2~0 := test_#t~nondet9;havoc test_#t~nondet9; 227#L88 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 215#L96-1 assume !(0 != ~pumpRunning~0); 218#L132 assume 0 != ~systemActive~0; 219#L139 havoc __utac_acc__Specification1_spec__1_#t~ret40, __utac_acc__Specification1_spec__1_#t~ret41, __utac_acc__Specification1_spec__1_~tmp~2, __utac_acc__Specification1_spec__1_~tmp___0~1;havoc __utac_acc__Specification1_spec__1_~tmp~2;havoc __utac_acc__Specification1_spec__1_~tmp___0~1;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~2;havoc isMethaneLevelCritical_~retValue_acc~2;isMethaneLevelCritical_~retValue_acc~2 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~2; 213#L326 __utac_acc__Specification1_spec__1_#t~ret40 := isMethaneLevelCritical_#res;__utac_acc__Specification1_spec__1_~tmp~2 := __utac_acc__Specification1_spec__1_#t~ret40;havoc __utac_acc__Specification1_spec__1_#t~ret40; 173#L409 assume !(0 != __utac_acc__Specification1_spec__1_~tmp~2); 174#L409-1 [2021-07-06 20:10:24,234 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-06 20:10:24,234 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 2 times [2021-07-06 20:10:24,234 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-06 20:10:24,235 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1728729615] [2021-07-06 20:10:24,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-06 20:10:24,235 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-07-06 20:10:24,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-06 20:10:24,282 INFO L224 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-06 20:10:24,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-06 20:10:24,330 INFO L224 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-06 20:10:24,347 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-07-06 20:10:24,348 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-06 20:10:24,349 INFO L82 PathProgramCache]: Analyzing trace with hash -1673030481, now seen corresponding path program 1 times [2021-07-06 20:10:24,349 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-06 20:10:24,350 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [835809369] [2021-07-06 20:10:24,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-06 20:10:24,352 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-07-06 20:10:24,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-06 20:10:24,358 INFO L224 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-06 20:10:24,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-06 20:10:24,361 INFO L224 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-06 20:10:24,363 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-07-06 20:10:24,364 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-06 20:10:24,365 INFO L82 PathProgramCache]: Analyzing trace with hash 41248457, now seen corresponding path program 1 times [2021-07-06 20:10:24,368 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-06 20:10:24,369 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [847330629] [2021-07-06 20:10:24,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-06 20:10:24,369 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-07-06 20:10:24,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-06 20:10:24,400 INFO L224 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-06 20:10:24,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-06 20:10:24,427 INFO L224 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-06 20:10:24,433 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-07-06 20:10:24,485 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 20:10:24,486 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-07-06 20:11:04,585 WARN L205 SmtUtils]: Spent 40.07 s on a formula simplification. DAG size of input: 491 DAG size of output: 433 [2021-07-06 20:11:04,606 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 20:11:04,631 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2127 [2021-07-06 20:11:24,636 WARN L205 SmtUtils]: Spent 20.00 s on a formula simplification that was a NOOP. DAG size: 433 [2021-07-06 20:11:24,725 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 06.07 08:11:24 BoogieIcfgContainer [2021-07-06 20:11:24,725 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-07-06 20:11:24,725 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-07-06 20:11:24,726 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-07-06 20:11:24,727 INFO L275 PluginConnector]: Witness Printer initialized [2021-07-06 20:11:24,728 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.07 08:10:23" (3/4) ... [2021-07-06 20:11:24,729 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2021-07-06 20:11:24,758 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-07-06 20:11:24,759 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-07-06 20:11:24,760 INFO L168 Benchmark]: Toolchain (without parser) took 62094.94 ms. Allocated memory was 58.7 MB in the beginning and 90.2 MB in the end (delta: 31.5 MB). Free memory was 35.5 MB in the beginning and 40.7 MB in the end (delta: -5.1 MB). Peak memory consumption was 27.1 MB. Max. memory is 16.1 GB. [2021-07-06 20:11:24,761 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 58.7 MB. Free memory was 39.5 MB in the beginning and 39.5 MB in the end (delta: 73.5 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-07-06 20:11:24,761 INFO L168 Benchmark]: CACSL2BoogieTranslator took 323.64 ms. Allocated memory is still 58.7 MB. Free memory was 35.3 MB in the beginning and 31.8 MB in the end (delta: 3.6 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2021-07-06 20:11:24,761 INFO L168 Benchmark]: Boogie Procedure Inliner took 49.13 ms. Allocated memory is still 58.7 MB. Free memory was 31.6 MB in the beginning and 29.1 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-07-06 20:11:24,762 INFO L168 Benchmark]: Boogie Preprocessor took 36.12 ms. Allocated memory is still 58.7 MB. Free memory was 29.1 MB in the beginning and 27.2 MB in the end (delta: 1.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-07-06 20:11:24,762 INFO L168 Benchmark]: RCFGBuilder took 597.90 ms. Allocated memory was 58.7 MB in the beginning and 73.4 MB in the end (delta: 14.7 MB). Free memory was 27.2 MB in the beginning and 53.2 MB in the end (delta: -26.0 MB). Peak memory consumption was 13.3 MB. Max. memory is 16.1 GB. [2021-07-06 20:11:24,762 INFO L168 Benchmark]: BuchiAutomizer took 61044.90 ms. Allocated memory was 73.4 MB in the beginning and 90.2 MB in the end (delta: 16.8 MB). Free memory was 53.2 MB in the beginning and 42.8 MB in the end (delta: 10.4 MB). Peak memory consumption was 54.4 MB. Max. memory is 16.1 GB. [2021-07-06 20:11:24,762 INFO L168 Benchmark]: Witness Printer took 34.20 ms. Allocated memory is still 90.2 MB. Free memory was 42.8 MB in the beginning and 40.7 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-07-06 20:11:24,764 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 58.7 MB. Free memory was 39.5 MB in the beginning and 39.5 MB in the end (delta: 73.5 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 323.64 ms. Allocated memory is still 58.7 MB. Free memory was 35.3 MB in the beginning and 31.8 MB in the end (delta: 3.6 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 49.13 ms. Allocated memory is still 58.7 MB. Free memory was 31.6 MB in the beginning and 29.1 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 36.12 ms. Allocated memory is still 58.7 MB. Free memory was 29.1 MB in the beginning and 27.2 MB in the end (delta: 1.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 597.90 ms. Allocated memory was 58.7 MB in the beginning and 73.4 MB in the end (delta: 14.7 MB). Free memory was 27.2 MB in the beginning and 53.2 MB in the end (delta: -26.0 MB). Peak memory consumption was 13.3 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 61044.90 ms. Allocated memory was 73.4 MB in the beginning and 90.2 MB in the end (delta: 16.8 MB). Free memory was 53.2 MB in the beginning and 42.8 MB in the end (delta: 10.4 MB). Peak memory consumption was 54.4 MB. Max. memory is 16.1 GB. * Witness Printer took 34.20 ms. Allocated memory is still 90.2 MB. Free memory was 42.8 MB in the beginning and 40.7 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 1 terminating modules (1 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.1 modules have a trivial ranking function, the largest among these consists of 3 locations. The remainder module has 90 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 61.0s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 60.8s. 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 17.8ms 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, 30.9ms Time LassoAnalysisResults: nont1 unkn0 SFLI1 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 58]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=18408} State at position 1 is {NULL=0, NULL=0, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@87c4a82=74, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@21940b07=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@49503611=0, NULL=18408, NULL=18409, NULL=0, NULL=0, NULL=18432, NULL=18423, retValue_acc=0, NULL=18428, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5fd1fcb6=0, NULL=18410, methaneLevelCritical=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@13c7e055=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@46f1b320=0, NULL=0, NULL=0, tmp___1=0, NULL=0, NULL=0, tmp___0=0, NULL=18413, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@13d60015=0, NULL=18411, NULL=18422, cleanupTimeShifts=4, tmp=0, NULL=18431, NULL=18433, NULL=0, systemActive=1, waterLevel=1, NULL=18416, NULL=0, NULL=0, NULL=0, NULL=0, retValue_acc=0, tmp___0=0, NULL=18429, NULL=18415, \result=1, NULL=18414, head=0, pumpRunning=0, \result=0, NULL=18427, NULL=0, NULL=0, NULL=0, tmp=0, NULL=0, NULL=0, tmp=1, retValue_acc=1, NULL=18412, NULL=18421, NULL=0, NULL=0, NULL=0, NULL=0, NULL=18418, tmp___2=74, NULL=18436, NULL=18425, splverifierCounter=0, NULL=0, \result=0, NULL=18420, NULL=18435, NULL=18426, head=0, NULL=0, NULL=0, NULL=18424, NULL=0, NULL=0, NULL=18419, NULL=18417, NULL=0, NULL=18434, NULL=18430} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L124] int pumpRunning = 0; [L125] int systemActive = 1; [L283] int waterLevel = 1; [L284] int methaneLevelCritical = 0; [L596] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L793] int cleanupTimeShifts = 4; [L866] int retValue_acc ; [L867] int tmp ; [L392] int retValue_acc ; [L395] retValue_acc = 1 [L396] return (retValue_acc); [L873] tmp = valid_product() [L875] COND TRUE \read(tmp) [L49] int splverifierCounter ; [L50] int tmp ; [L51] int tmp___0 ; [L52] int tmp___1 ; [L53] int tmp___2 ; [L56] splverifierCounter = 0 Loop: [L58] COND TRUE 1 [L60] COND TRUE splverifierCounter < 4 [L66] tmp = __VERIFIER_nondet_int() [L68] COND FALSE !(\read(tmp)) [L76] tmp___0 = __VERIFIER_nondet_int() [L78] COND FALSE !(\read(tmp___0)) [L86] tmp___2 = __VERIFIER_nondet_int() [L88] COND TRUE \read(tmp___2) [L268] systemActive = 1 [L132] COND FALSE !(\read(pumpRunning)) [L139] COND TRUE \read(systemActive) [L402] int tmp ; [L403] int tmp___0 ; [L322] int retValue_acc ; [L325] retValue_acc = methaneLevelCritical [L326] return (retValue_acc); [L407] tmp = isMethaneLevelCritical() [L409] COND FALSE !(\read(tmp)) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2021-07-06 20:11:24,809 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0 Received shutdown request...