./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/minepump_spec4_product31.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_spec4_product31.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 be57a8909169924934bb5133fe0a47f53bebc905 .......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 20:29:15,742 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-07-06 20:29:15,744 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-07-06 20:29:15,784 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-07-06 20:29:15,784 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-07-06 20:29:15,787 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-07-06 20:29:15,789 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-07-06 20:29:15,801 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-07-06 20:29:15,806 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-07-06 20:29:15,810 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-07-06 20:29:15,811 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-07-06 20:29:15,813 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-07-06 20:29:15,814 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-07-06 20:29:15,816 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-07-06 20:29:15,817 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-07-06 20:29:15,818 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-07-06 20:29:15,821 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-07-06 20:29:15,822 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-07-06 20:29:15,823 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-07-06 20:29:15,829 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-07-06 20:29:15,830 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-07-06 20:29:15,831 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-07-06 20:29:15,833 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-07-06 20:29:15,834 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-07-06 20:29:15,840 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-07-06 20:29:15,840 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-07-06 20:29:15,840 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-07-06 20:29:15,842 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-07-06 20:29:15,842 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-07-06 20:29:15,843 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-07-06 20:29:15,843 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-07-06 20:29:15,844 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-07-06 20:29:15,846 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-07-06 20:29:15,846 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-07-06 20:29:15,847 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-07-06 20:29:15,847 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-07-06 20:29:15,848 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-07-06 20:29:15,848 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-07-06 20:29:15,848 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-07-06 20:29:15,850 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-07-06 20:29:15,850 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-07-06 20:29:15,855 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-07-06 20:29:15,894 INFO L113 SettingsManager]: Loading preferences was successful [2021-07-06 20:29:15,894 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-07-06 20:29:15,896 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-07-06 20:29:15,896 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-07-06 20:29:15,896 INFO L138 SettingsManager]: * Use SBE=true [2021-07-06 20:29:15,897 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-07-06 20:29:15,897 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-07-06 20:29:15,897 INFO L138 SettingsManager]: * Use old map elimination=false [2021-07-06 20:29:15,898 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-07-06 20:29:15,898 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-07-06 20:29:15,898 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-07-06 20:29:15,899 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-07-06 20:29:15,899 INFO L138 SettingsManager]: * sizeof long=4 [2021-07-06 20:29:15,899 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-07-06 20:29:15,899 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-07-06 20:29:15,900 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-07-06 20:29:15,900 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-07-06 20:29:15,900 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-07-06 20:29:15,900 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-07-06 20:29:15,900 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-07-06 20:29:15,901 INFO L138 SettingsManager]: * sizeof long double=12 [2021-07-06 20:29:15,901 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-07-06 20:29:15,901 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-07-06 20:29:15,901 INFO L138 SettingsManager]: * Use constant arrays=true [2021-07-06 20:29:15,902 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-07-06 20:29:15,902 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-07-06 20:29:15,902 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-07-06 20:29:15,902 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-07-06 20:29:15,902 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-07-06 20:29:15,903 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-07-06 20:29:15,904 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-07-06 20:29:15,904 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> be57a8909169924934bb5133fe0a47f53bebc905 [2021-07-06 20:29:16,202 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-07-06 20:29:16,225 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-07-06 20:29:16,227 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-07-06 20:29:16,228 INFO L271 PluginConnector]: Initializing CDTParser... [2021-07-06 20:29:16,229 INFO L275 PluginConnector]: CDTParser initialized [2021-07-06 20:29:16,229 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec4_product31.cil.c [2021-07-06 20:29:16,282 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/00aac49d1/419685501da0486d9cc0a1766b38c7ed/FLAG7bf3df55b [2021-07-06 20:29:16,689 INFO L306 CDTParser]: Found 1 translation units. [2021-07-06 20:29:16,690 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec4_product31.cil.c [2021-07-06 20:29:16,698 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/00aac49d1/419685501da0486d9cc0a1766b38c7ed/FLAG7bf3df55b [2021-07-06 20:29:17,077 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/00aac49d1/419685501da0486d9cc0a1766b38c7ed [2021-07-06 20:29:17,080 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-07-06 20:29:17,081 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-07-06 20:29:17,084 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-07-06 20:29:17,084 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-07-06 20:29:17,087 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-07-06 20:29:17,088 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.07 08:29:17" (1/1) ... [2021-07-06 20:29:17,093 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@434473f5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 08:29:17, skipping insertion in model container [2021-07-06 20:29:17,093 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.07 08:29:17" (1/1) ... [2021-07-06 20:29:17,099 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-07-06 20:29:17,148 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-07-06 20:29:17,367 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_spec4_product31.cil.c[18004,18017] [2021-07-06 20:29:17,367 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-07-06 20:29:17,402 INFO L203 MainTranslator]: Completed pre-run [2021-07-06 20:29:17,498 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_spec4_product31.cil.c[18004,18017] [2021-07-06 20:29:17,506 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-07-06 20:29:17,532 INFO L208 MainTranslator]: Completed translation [2021-07-06 20:29:17,533 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 08:29:17 WrapperNode [2021-07-06 20:29:17,533 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-07-06 20:29:17,534 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-07-06 20:29:17,534 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-07-06 20:29:17,534 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-07-06 20:29:17,540 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 08:29:17" (1/1) ... [2021-07-06 20:29:17,553 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 08:29:17" (1/1) ... [2021-07-06 20:29:17,591 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-07-06 20:29:17,597 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-07-06 20:29:17,598 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-07-06 20:29:17,598 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-07-06 20:29:17,605 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 08:29:17" (1/1) ... [2021-07-06 20:29:17,605 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 08:29:17" (1/1) ... [2021-07-06 20:29:17,619 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 08:29:17" (1/1) ... [2021-07-06 20:29:17,621 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 08:29:17" (1/1) ... [2021-07-06 20:29:17,629 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 08:29:17" (1/1) ... [2021-07-06 20:29:17,650 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 08:29:17" (1/1) ... [2021-07-06 20:29:17,663 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 08:29:17" (1/1) ... [2021-07-06 20:29:17,667 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-07-06 20:29:17,667 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-07-06 20:29:17,672 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-07-06 20:29:17,672 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-07-06 20:29:17,673 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 08:29:17" (1/1) ... [2021-07-06 20:29:17,678 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-07-06 20:29:17,685 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-07-06 20:29:17,706 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 20:29:17,731 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 20:29:17,765 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-07-06 20:29:17,766 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-07-06 20:29:17,766 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-07-06 20:29:17,767 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-07-06 20:29:18,485 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-07-06 20:29:18,486 INFO L299 CfgBuilder]: Removed 160 assume(true) statements. [2021-07-06 20:29:18,488 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.07 08:29:18 BoogieIcfgContainer [2021-07-06 20:29:18,488 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-07-06 20:29:18,490 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-07-06 20:29:18,490 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-07-06 20:29:18,492 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-07-06 20:29:18,493 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-07-06 20:29:18,493 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 06.07 08:29:17" (1/3) ... [2021-07-06 20:29:18,494 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5721402b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 06.07 08:29:18, skipping insertion in model container [2021-07-06 20:29:18,495 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-07-06 20:29:18,495 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 08:29:17" (2/3) ... [2021-07-06 20:29:18,495 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5721402b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 06.07 08:29:18, skipping insertion in model container [2021-07-06 20:29:18,496 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-07-06 20:29:18,496 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.07 08:29:18" (3/3) ... [2021-07-06 20:29:18,497 INFO L389 chiAutomizerObserver]: Analyzing ICFG minepump_spec4_product31.cil.c [2021-07-06 20:29:18,536 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-07-06 20:29:18,537 INFO L360 BuchiCegarLoop]: Hoare is false [2021-07-06 20:29:18,537 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-07-06 20:29:18,537 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-07-06 20:29:18,537 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-07-06 20:29:18,538 INFO L364 BuchiCegarLoop]: Difference is false [2021-07-06 20:29:18,538 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-07-06 20:29:18,538 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-07-06 20:29:18,559 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 104 states, 103 states have (on average 1.5145631067961165) internal successors, (156), 103 states have internal predecessors, (156), 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 20:29:18,586 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 67 [2021-07-06 20:29:18,586 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-07-06 20:29:18,587 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-07-06 20:29:18,594 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-07-06 20:29:18,594 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-06 20:29:18,594 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-07-06 20:29:18,596 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 104 states, 103 states have (on average 1.5145631067961165) internal successors, (156), 103 states have internal predecessors, (156), 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 20:29:18,613 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 67 [2021-07-06 20:29:18,613 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-07-06 20:29:18,614 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-07-06 20:29:18,614 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-07-06 20:29:18,614 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-06 20:29:18,624 INFO L791 eck$LassoCheckResult]: Stem: 77#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~string27.base, #t~string27.offset := #Ultimate.allocOnStack(30);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(9);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(21);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(30);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(9);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(21);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(30);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(9);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(25);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(30);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(9);call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(25);call #t~string45.base, #t~string45.offset := #Ultimate.allocOnStack(13);call #t~string47.base, #t~string47.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string47.base, #t~string47.offset, 1);call write~init~int(77, #t~string47.base, 1 + #t~string47.offset, 1);call write~init~int(101, #t~string47.base, 2 + #t~string47.offset, 1);call write~init~int(116, #t~string47.base, 3 + #t~string47.offset, 1);call write~init~int(104, #t~string47.base, 4 + #t~string47.offset, 1);call write~init~int(58, #t~string47.base, 5 + #t~string47.offset, 1);call write~init~int(0, #t~string47.base, 6 + #t~string47.offset, 1);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string49.base, #t~string49.offset, 1);call write~init~int(82, #t~string49.base, 1 + #t~string49.offset, 1);call write~init~int(73, #t~string49.base, 2 + #t~string49.offset, 1);call write~init~int(84, #t~string49.base, 3 + #t~string49.offset, 1);call write~init~int(0, #t~string49.base, 4 + #t~string49.offset, 1);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string51.base, #t~string51.offset, 1);call write~init~int(75, #t~string51.base, 1 + #t~string51.offset, 1);call write~init~int(0, #t~string51.base, 2 + #t~string51.offset, 1);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string53.base, #t~string53.offset, 1);call write~init~int(0, #t~string53.base, 1 + #t~string53.offset, 1);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(13);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string65.base, #t~string65.offset, 1);call write~init~int(110, #t~string65.base, 1 + #t~string65.offset, 1);call write~init~int(0, #t~string65.base, 2 + #t~string65.offset, 1);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string67.base, #t~string67.offset, 1);call write~init~int(102, #t~string67.base, 1 + #t~string67.offset, 1);call write~init~int(102, #t~string67.base, 2 + #t~string67.offset, 1);call write~init~int(0, #t~string67.base, 3 + #t~string67.offset, 1);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string69.base, #t~string69.offset, 1);call write~init~int(80, #t~string69.base, 1 + #t~string69.offset, 1);call write~init~int(117, #t~string69.base, 2 + #t~string69.offset, 1);call write~init~int(109, #t~string69.base, 3 + #t~string69.offset, 1);call write~init~int(112, #t~string69.base, 4 + #t~string69.offset, 1);call write~init~int(58, #t~string69.base, 5 + #t~string69.offset, 1);call write~init~int(0, #t~string69.base, 6 + #t~string69.offset, 1);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string71.base, #t~string71.offset, 1);call write~init~int(110, #t~string71.base, 1 + #t~string71.offset, 1);call write~init~int(0, #t~string71.base, 2 + #t~string71.offset, 1);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string73.base, #t~string73.offset, 1);call write~init~int(102, #t~string73.base, 1 + #t~string73.offset, 1);call write~init~int(102, #t~string73.base, 2 + #t~string73.offset, 1);call write~init~int(0, #t~string73.base, 3 + #t~string73.offset, 1);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string75.base, #t~string75.offset, 1);call write~init~int(32, #t~string75.base, 1 + #t~string75.offset, 1);call write~init~int(0, #t~string75.base, 2 + #t~string75.offset, 1);call #t~string77.base, #t~string77.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string77.base, #t~string77.offset, 1);call write~init~int(0, #t~string77.base, 1 + #t~string77.offset, 1);~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1; 15#L-1true havoc main_#res;havoc main_#t~ret7, main_~retValue_acc~0, main_~tmp~0;havoc main_~retValue_acc~0;havoc main_~tmp~0; 49#L168true havoc valid_product_#res;havoc valid_product_~retValue_acc~2;havoc valid_product_~retValue_acc~2;valid_product_~retValue_acc~2 := 1;valid_product_#res := valid_product_~retValue_acc~2; 72#L176true main_#t~ret7 := valid_product_#res;main_~tmp~0 := main_#t~ret7;havoc main_#t~ret7; 83#L132true assume 0 != main_~tmp~0; 28#L105true havoc test_#t~nondet54, test_#t~nondet55, test_#t~nondet56, test_#t~nondet57, test_~splverifierCounter~0, test_~tmp~4, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~4;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 7#L932-1true [2021-07-06 20:29:18,625 INFO L793 eck$LassoCheckResult]: Loop: 7#L932-1true assume !false; 24#L653true assume test_~splverifierCounter~0 < 4; 5#L654true test_~tmp~4 := test_#t~nondet54;havoc test_#t~nondet54; 19#L662true assume !(0 != test_~tmp~4); 20#L662-1true test_~tmp___0~0 := test_#t~nondet55;havoc test_#t~nondet55; 50#L672true assume !(0 != test_~tmp___0~0); 52#L672-1true test_~tmp___2~0 := test_#t~nondet56;havoc test_#t~nondet56; 97#L682true assume 0 != test_~tmp___2~0; 84#L688-1true assume !(0 != ~pumpRunning~0); 16#L720true assume !(0 != ~systemActive~0); 45#L727true havoc __utac_acc__Specification4_spec__1_#t~ret79, __utac_acc__Specification4_spec__1_#t~ret80, __utac_acc__Specification4_spec__1_~tmp~9, __utac_acc__Specification4_spec__1_~tmp___0~2;havoc __utac_acc__Specification4_spec__1_~tmp~9;havoc __utac_acc__Specification4_spec__1_~tmp___0~2;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~7;havoc getWaterLevel_~retValue_acc~7;getWaterLevel_~retValue_acc~7 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~7; 88#L627true __utac_acc__Specification4_spec__1_#t~ret79 := getWaterLevel_#res;__utac_acc__Specification4_spec__1_~tmp~9 := __utac_acc__Specification4_spec__1_#t~ret79;havoc __utac_acc__Specification4_spec__1_#t~ret79; 3#L932true assume !(0 == __utac_acc__Specification4_spec__1_~tmp~9); 7#L932-1true [2021-07-06 20:29:18,632 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-06 20:29:18,633 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 1 times [2021-07-06 20:29:18,640 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-06 20:29:18,641 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [701675804] [2021-07-06 20:29:18,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-06 20:29:18,642 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-07-06 20:29:18,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-06 20:29:18,890 INFO L224 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-06 20:29:18,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-06 20:29:18,985 INFO L224 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-06 20:29:19,010 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-07-06 20:29:19,012 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-06 20:29:19,012 INFO L82 PathProgramCache]: Analyzing trace with hash -1671709749, now seen corresponding path program 1 times [2021-07-06 20:29:19,013 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-06 20:29:19,013 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [886012374] [2021-07-06 20:29:19,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-06 20:29:19,013 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-07-06 20:29:19,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-06 20:29:19,022 INFO L224 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-06 20:29:19,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-06 20:29:19,028 INFO L224 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-06 20:29:19,032 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-07-06 20:29:19,035 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-06 20:29:19,036 INFO L82 PathProgramCache]: Analyzing trace with hash 42569189, now seen corresponding path program 1 times [2021-07-06 20:29:19,036 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-06 20:29:19,036 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [587081006] [2021-07-06 20:29:19,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-06 20:29:19,036 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-07-06 20:29:19,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-06 20:29:19,137 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 20:29:19,138 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-06 20:29:19,147 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 20:29:19,148 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-06 20:29:19,173 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 20:29:19,174 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-06 20:29:19,182 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 20:29:19,182 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-07-06 20:29:19,190 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 20:29:19,190 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-06 20:29:19,192 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 20:29:19,192 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-06 20:29:19,192 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [587081006] [2021-07-06 20:29:19,193 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [587081006] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-06 20:29:19,193 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-06 20:29:19,193 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-07-06 20:29:19,194 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2136611094] [2021-07-06 20:29:19,230 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 20:29:19,233 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-07-06 20:29:19,270 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-06 20:29:19,280 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-07-06 20:29:19,281 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-07-06 20:29:19,285 INFO L87 Difference]: Start difference. First operand has 104 states, 103 states have (on average 1.5145631067961165) internal successors, (156), 103 states have internal predecessors, (156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 6 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 5 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-06 20:29:19,514 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-06 20:29:19,515 INFO L93 Difference]: Finished difference Result 252 states and 354 transitions. [2021-07-06 20:29:19,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-07-06 20:29:19,517 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 252 states and 354 transitions. [2021-07-06 20:29:19,525 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 161 [2021-07-06 20:29:19,534 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 252 states to 231 states and 333 transitions. [2021-07-06 20:29:19,536 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 231 [2021-07-06 20:29:19,537 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 231 [2021-07-06 20:29:19,538 INFO L73 IsDeterministic]: Start isDeterministic. Operand 231 states and 333 transitions. [2021-07-06 20:29:19,540 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-07-06 20:29:19,541 INFO L681 BuchiCegarLoop]: Abstraction has 231 states and 333 transitions. [2021-07-06 20:29:19,554 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 231 states and 333 transitions. [2021-07-06 20:29:19,569 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 231 to 138. [2021-07-06 20:29:19,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 138 states, 138 states have (on average 1.434782608695652) internal successors, (198), 137 states have internal predecessors, (198), 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 20:29:19,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 138 states and 198 transitions. [2021-07-06 20:29:19,571 INFO L704 BuchiCegarLoop]: Abstraction has 138 states and 198 transitions. [2021-07-06 20:29:19,572 INFO L587 BuchiCegarLoop]: Abstraction has 138 states and 198 transitions. [2021-07-06 20:29:19,572 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-07-06 20:29:19,572 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 138 states and 198 transitions. [2021-07-06 20:29:19,573 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 96 [2021-07-06 20:29:19,573 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-07-06 20:29:19,573 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-07-06 20:29:19,574 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-07-06 20:29:19,574 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-06 20:29:19,574 INFO L791 eck$LassoCheckResult]: Stem: 465#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~string27.base, #t~string27.offset := #Ultimate.allocOnStack(30);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(9);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(21);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(30);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(9);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(21);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(30);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(9);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(25);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(30);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(9);call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(25);call #t~string45.base, #t~string45.offset := #Ultimate.allocOnStack(13);call #t~string47.base, #t~string47.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string47.base, #t~string47.offset, 1);call write~init~int(77, #t~string47.base, 1 + #t~string47.offset, 1);call write~init~int(101, #t~string47.base, 2 + #t~string47.offset, 1);call write~init~int(116, #t~string47.base, 3 + #t~string47.offset, 1);call write~init~int(104, #t~string47.base, 4 + #t~string47.offset, 1);call write~init~int(58, #t~string47.base, 5 + #t~string47.offset, 1);call write~init~int(0, #t~string47.base, 6 + #t~string47.offset, 1);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string49.base, #t~string49.offset, 1);call write~init~int(82, #t~string49.base, 1 + #t~string49.offset, 1);call write~init~int(73, #t~string49.base, 2 + #t~string49.offset, 1);call write~init~int(84, #t~string49.base, 3 + #t~string49.offset, 1);call write~init~int(0, #t~string49.base, 4 + #t~string49.offset, 1);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string51.base, #t~string51.offset, 1);call write~init~int(75, #t~string51.base, 1 + #t~string51.offset, 1);call write~init~int(0, #t~string51.base, 2 + #t~string51.offset, 1);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string53.base, #t~string53.offset, 1);call write~init~int(0, #t~string53.base, 1 + #t~string53.offset, 1);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(13);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string65.base, #t~string65.offset, 1);call write~init~int(110, #t~string65.base, 1 + #t~string65.offset, 1);call write~init~int(0, #t~string65.base, 2 + #t~string65.offset, 1);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string67.base, #t~string67.offset, 1);call write~init~int(102, #t~string67.base, 1 + #t~string67.offset, 1);call write~init~int(102, #t~string67.base, 2 + #t~string67.offset, 1);call write~init~int(0, #t~string67.base, 3 + #t~string67.offset, 1);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string69.base, #t~string69.offset, 1);call write~init~int(80, #t~string69.base, 1 + #t~string69.offset, 1);call write~init~int(117, #t~string69.base, 2 + #t~string69.offset, 1);call write~init~int(109, #t~string69.base, 3 + #t~string69.offset, 1);call write~init~int(112, #t~string69.base, 4 + #t~string69.offset, 1);call write~init~int(58, #t~string69.base, 5 + #t~string69.offset, 1);call write~init~int(0, #t~string69.base, 6 + #t~string69.offset, 1);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string71.base, #t~string71.offset, 1);call write~init~int(110, #t~string71.base, 1 + #t~string71.offset, 1);call write~init~int(0, #t~string71.base, 2 + #t~string71.offset, 1);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string73.base, #t~string73.offset, 1);call write~init~int(102, #t~string73.base, 1 + #t~string73.offset, 1);call write~init~int(102, #t~string73.base, 2 + #t~string73.offset, 1);call write~init~int(0, #t~string73.base, 3 + #t~string73.offset, 1);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string75.base, #t~string75.offset, 1);call write~init~int(32, #t~string75.base, 1 + #t~string75.offset, 1);call write~init~int(0, #t~string75.base, 2 + #t~string75.offset, 1);call #t~string77.base, #t~string77.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string77.base, #t~string77.offset, 1);call write~init~int(0, #t~string77.base, 1 + #t~string77.offset, 1);~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1; 394#L-1 havoc main_#res;havoc main_#t~ret7, main_~retValue_acc~0, main_~tmp~0;havoc main_~retValue_acc~0;havoc main_~tmp~0; 395#L168 havoc valid_product_#res;havoc valid_product_~retValue_acc~2;havoc valid_product_~retValue_acc~2;valid_product_~retValue_acc~2 := 1;valid_product_#res := valid_product_~retValue_acc~2; 442#L176 main_#t~ret7 := valid_product_#res;main_~tmp~0 := main_#t~ret7;havoc main_#t~ret7; 462#L132 assume 0 != main_~tmp~0; 415#L105 havoc test_#t~nondet54, test_#t~nondet55, test_#t~nondet56, test_#t~nondet57, test_~splverifierCounter~0, test_~tmp~4, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~4;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 375#L932-1 [2021-07-06 20:29:19,574 INFO L793 eck$LassoCheckResult]: Loop: 375#L932-1 assume !false; 381#L653 assume test_~splverifierCounter~0 < 4; 377#L654 test_~tmp~4 := test_#t~nondet54;havoc test_#t~nondet54; 378#L662 assume !(0 != test_~tmp~4); 400#L662-1 test_~tmp___0~0 := test_#t~nondet55;havoc test_#t~nondet55; 401#L672 assume !(0 != test_~tmp___0~0); 403#L672-1 test_~tmp___2~0 := test_#t~nondet56;havoc test_#t~nondet56; 444#L682 assume 0 != test_~tmp___2~0; 469#L688-1 assume !(0 != ~pumpRunning~0); 396#L720 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret59, processEnvironment_~tmp~6;havoc processEnvironment_~tmp~6; 391#L778 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__methaneQuery_#t~ret58, processEnvironment__wrappee__methaneQuery_~tmp~5;havoc processEnvironment__wrappee__methaneQuery_~tmp~5; 393#L752-1 assume !(0 != ~pumpRunning~0); 422#L727 havoc __utac_acc__Specification4_spec__1_#t~ret79, __utac_acc__Specification4_spec__1_#t~ret80, __utac_acc__Specification4_spec__1_~tmp~9, __utac_acc__Specification4_spec__1_~tmp___0~2;havoc __utac_acc__Specification4_spec__1_~tmp~9;havoc __utac_acc__Specification4_spec__1_~tmp___0~2;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~7;havoc getWaterLevel_~retValue_acc~7;getWaterLevel_~retValue_acc~7 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~7; 438#L627 __utac_acc__Specification4_spec__1_#t~ret79 := getWaterLevel_#res;__utac_acc__Specification4_spec__1_~tmp~9 := __utac_acc__Specification4_spec__1_#t~ret79;havoc __utac_acc__Specification4_spec__1_#t~ret79; 374#L932 assume !(0 == __utac_acc__Specification4_spec__1_~tmp~9); 375#L932-1 [2021-07-06 20:29:19,575 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-06 20:29:19,575 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 2 times [2021-07-06 20:29:19,575 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-06 20:29:19,575 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1089766125] [2021-07-06 20:29:19,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-06 20:29:19,576 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-07-06 20:29:19,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-06 20:29:19,605 INFO L224 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-06 20:29:19,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-06 20:29:19,633 INFO L224 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-06 20:29:19,644 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-07-06 20:29:19,644 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-06 20:29:19,645 INFO L82 PathProgramCache]: Analyzing trace with hash 1950294333, now seen corresponding path program 1 times [2021-07-06 20:29:19,645 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-06 20:29:19,645 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1454479800] [2021-07-06 20:29:19,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-06 20:29:19,645 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-07-06 20:29:19,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-06 20:29:19,655 INFO L224 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-06 20:29:19,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-06 20:29:19,657 INFO L224 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-06 20:29:19,660 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-07-06 20:29:19,660 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-06 20:29:19,661 INFO L82 PathProgramCache]: Analyzing trace with hash 104912087, now seen corresponding path program 1 times [2021-07-06 20:29:19,661 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-06 20:29:19,661 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1658282168] [2021-07-06 20:29:19,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-06 20:29:19,661 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-07-06 20:29:19,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-06 20:29:19,691 INFO L224 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-06 20:29:19,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-06 20:29:19,720 INFO L224 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-06 20:29:19,732 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-07-06 20:29:19,755 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 20:29:19,756 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-07-06 20:29:59,258 WARN L205 SmtUtils]: Spent 39.48 s on a formula simplification. DAG size of input: 491 DAG size of output: 433 [2021-07-06 20:29:59,294 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 20:29:59,329 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2127 [2021-07-06 20:30:20,465 WARN L205 SmtUtils]: Spent 21.13 s on a formula simplification that was a NOOP. DAG size: 433 [2021-07-06 20:30:20,585 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 06.07 08:30:20 BoogieIcfgContainer [2021-07-06 20:30:20,585 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-07-06 20:30:20,587 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-07-06 20:30:20,587 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-07-06 20:30:20,587 INFO L275 PluginConnector]: Witness Printer initialized [2021-07-06 20:30:20,588 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.07 08:29:18" (3/4) ... [2021-07-06 20:30:20,590 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2021-07-06 20:30:20,642 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-07-06 20:30:20,642 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-07-06 20:30:20,643 INFO L168 Benchmark]: Toolchain (without parser) took 63562.15 ms. Allocated memory was 50.3 MB in the beginning and 92.3 MB in the end (delta: 41.9 MB). Free memory was 26.8 MB in the beginning and 32.3 MB in the end (delta: -5.5 MB). Peak memory consumption was 37.1 MB. Max. memory is 16.1 GB. [2021-07-06 20:30:20,644 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 50.3 MB. Free memory was 32.1 MB in the beginning and 32.1 MB in the end (delta: 34.4 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-07-06 20:30:20,645 INFO L168 Benchmark]: CACSL2BoogieTranslator took 449.44 ms. Allocated memory was 50.3 MB in the beginning and 60.8 MB in the end (delta: 10.5 MB). Free memory was 26.6 MB in the beginning and 36.3 MB in the end (delta: -9.7 MB). Peak memory consumption was 11.0 MB. Max. memory is 16.1 GB. [2021-07-06 20:30:20,645 INFO L168 Benchmark]: Boogie Procedure Inliner took 62.71 ms. Allocated memory is still 60.8 MB. Free memory was 36.3 MB in the beginning and 32.9 MB in the end (delta: 3.5 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-07-06 20:30:20,645 INFO L168 Benchmark]: Boogie Preprocessor took 69.50 ms. Allocated memory is still 60.8 MB. Free memory was 32.9 MB in the beginning and 30.4 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-07-06 20:30:20,646 INFO L168 Benchmark]: RCFGBuilder took 820.85 ms. Allocated memory was 60.8 MB in the beginning and 73.4 MB in the end (delta: 12.6 MB). Free memory was 30.3 MB in the beginning and 48.6 MB in the end (delta: -18.4 MB). Peak memory consumption was 14.2 MB. Max. memory is 16.1 GB. [2021-07-06 20:30:20,648 INFO L168 Benchmark]: BuchiAutomizer took 62096.00 ms. Allocated memory was 73.4 MB in the beginning and 92.3 MB in the end (delta: 18.9 MB). Free memory was 48.2 MB in the beginning and 34.4 MB in the end (delta: 13.8 MB). Peak memory consumption was 51.8 MB. Max. memory is 16.1 GB. [2021-07-06 20:30:20,648 INFO L168 Benchmark]: Witness Printer took 55.46 ms. Allocated memory is still 92.3 MB. Free memory was 34.4 MB in the beginning and 32.3 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-07-06 20:30:20,652 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 50.3 MB. Free memory was 32.1 MB in the beginning and 32.1 MB in the end (delta: 34.4 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 449.44 ms. Allocated memory was 50.3 MB in the beginning and 60.8 MB in the end (delta: 10.5 MB). Free memory was 26.6 MB in the beginning and 36.3 MB in the end (delta: -9.7 MB). Peak memory consumption was 11.0 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 62.71 ms. Allocated memory is still 60.8 MB. Free memory was 36.3 MB in the beginning and 32.9 MB in the end (delta: 3.5 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 69.50 ms. Allocated memory is still 60.8 MB. Free memory was 32.9 MB in the beginning and 30.4 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 820.85 ms. Allocated memory was 60.8 MB in the beginning and 73.4 MB in the end (delta: 12.6 MB). Free memory was 30.3 MB in the beginning and 48.6 MB in the end (delta: -18.4 MB). Peak memory consumption was 14.2 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 62096.00 ms. Allocated memory was 73.4 MB in the beginning and 92.3 MB in the end (delta: 18.9 MB). Free memory was 48.2 MB in the beginning and 34.4 MB in the end (delta: 13.8 MB). Peak memory consumption was 51.8 MB. Max. memory is 16.1 GB. * Witness Printer took 55.46 ms. Allocated memory is still 92.3 MB. Free memory was 34.4 MB in the beginning and 32.3 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 1 terminating modules (1 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.1 modules have a trivial ranking function, the largest among these consists of 6 locations. The remainder module has 138 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 62.0s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 61.6s. Construction of modules took 0.1s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 0. Minimization of det autom 1. Minimization of nondet autom 0. Automata minimization 19.7ms AutomataMinimizationTime, 1 MinimizatonAttempts, 93 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 138 states and ocurred in iteration 1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 143 SDtfs, 550 SDslu, 659 SDs, 0 SdLazy, 42 SolverSat, 9 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 137.2ms Time LassoAnalysisResults: nont1 unkn0 SFLI0 SFLT0 conc1 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 652]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=25156} State at position 1 is {NULL=0, NULL=0, NULL=0, retValue_acc=0, NULL=25156, NULL=0, NULL=25176, NULL=0, NULL=0, NULL=25170, NULL=25159, NULL=25173, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@76dc967a=0, methaneLevelCritical=0, NULL=25167, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@380ece95=0, NULL=0, tmp=0, NULL=0, NULL=25165, NULL=0, tmp___1=0, NULL=25168, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5ab80264=0, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@61d011ff=0, NULL=25169, NULL=25183, NULL=25171, cleanupTimeShifts=4, NULL=25164, NULL=25181, tmp___0=0, NULL=25182, NULL=0, NULL=0, NULL=0, systemActive=1, waterLevel=1, NULL=25175, \result=1, NULL=0, NULL=0, NULL=0, NULL=0, NULL=25172, tmp___0=0, NULL=0, NULL=25161, \result=1, head=0, pumpRunning=0, tmp=1, NULL=25180, \result=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@d51e27f=0, NULL=0, NULL=25174, NULL=0, NULL=0, NULL=25178, NULL=0, NULL=25157, retValue_acc=1, retValue_acc=1, tmp___2=64, NULL=0, tmp=1, NULL=25163, splverifierCounter=0, NULL=0, NULL=25177, NULL=25166, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1a9526c9=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4b4155c3=64, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@bf0f7cd=0, head=0, NULL=0, tmp=0, NULL=25160, NULL=25162, NULL=0, NULL=0, NULL=0, NULL=25158, NULL=25179, NULL=25184, tmp=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5d948760=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L42] int cleanupTimeShifts = 4; [L350] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L552] int waterLevel = 1; [L553] int methaneLevelCritical = 0; [L712] int pumpRunning = 0; [L713] int systemActive = 1; [L123] int retValue_acc ; [L124] int tmp ; [L172] int retValue_acc ; [L175] retValue_acc = 1 [L176] return (retValue_acc); [L130] tmp = valid_product() [L132] COND TRUE \read(tmp) [L643] int splverifierCounter ; [L644] int tmp ; [L645] int tmp___0 ; [L646] int tmp___1 ; [L647] int tmp___2 ; [L650] splverifierCounter = 0 Loop: [L652] COND TRUE 1 [L654] COND TRUE splverifierCounter < 4 [L660] tmp = __VERIFIER_nondet_int() [L662] COND FALSE !(\read(tmp)) [L670] tmp___0 = __VERIFIER_nondet_int() [L672] COND FALSE !(\read(tmp___0)) [L680] tmp___2 = __VERIFIER_nondet_int() [L682] COND TRUE \read(tmp___2) [L720] COND FALSE !(\read(pumpRunning)) [L727] COND TRUE \read(systemActive) [L775] int tmp ; [L778] COND FALSE !(\read(pumpRunning)) [L749] int tmp ; [L752] COND FALSE !(\read(pumpRunning)) [L925] int tmp ; [L926] int tmp___0 ; [L623] int retValue_acc ; [L626] retValue_acc = waterLevel [L627] return (retValue_acc); [L930] tmp = getWaterLevel() [L932] COND FALSE !(tmp == 0) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2021-07-06 20:30:20,700 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...