./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/minepump_spec4_product14.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 20ed64ec Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i ../sv-benchmarks/c/product-lines/minepump_spec4_product14.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 66b586d6027b93241761f1d47a4909c4b4135d36 ................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM) --- Real Ultimate output --- This is Ultimate 0.2.1-dev-20ed64e [2021-08-27 16:14:50,993 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-27 16:14:50,995 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-27 16:14:51,037 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-08-27 16:14:51,038 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-08-27 16:14:51,041 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-08-27 16:14:51,042 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-08-27 16:14:51,048 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-08-27 16:14:51,049 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-08-27 16:14:51,053 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-08-27 16:14:51,054 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-08-27 16:14:51,059 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-08-27 16:14:51,059 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-27 16:14:51,062 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-27 16:14:51,063 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-27 16:14:51,067 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-27 16:14:51,068 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-27 16:14:51,069 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-27 16:14:51,071 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-27 16:14:51,074 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-27 16:14:51,076 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-27 16:14:51,076 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-27 16:14:51,078 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-27 16:14:51,079 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-27 16:14:51,085 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-08-27 16:14:51,087 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-08-27 16:14:51,087 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-08-27 16:14:51,088 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-08-27 16:14:51,088 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-08-27 16:14:51,089 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-08-27 16:14:51,089 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-08-27 16:14:51,090 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-08-27 16:14:51,091 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-08-27 16:14:51,092 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-08-27 16:14:51,093 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-08-27 16:14:51,093 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-08-27 16:14:51,094 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-08-27 16:14:51,094 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-08-27 16:14:51,094 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-27 16:14:51,095 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-27 16:14:51,096 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-27 16:14:51,097 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-08-27 16:14:51,132 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-27 16:14:51,132 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-27 16:14:51,133 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-27 16:14:51,133 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-27 16:14:51,135 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-27 16:14:51,135 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-27 16:14:51,135 INFO L138 SettingsManager]: * Use SBE=true [2021-08-27 16:14:51,136 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-08-27 16:14:51,136 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-08-27 16:14:51,136 INFO L138 SettingsManager]: * Use old map elimination=false [2021-08-27 16:14:51,137 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-08-27 16:14:51,137 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-08-27 16:14:51,137 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-08-27 16:14:51,137 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-27 16:14:51,137 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-27 16:14:51,138 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-08-27 16:14:51,138 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-27 16:14:51,138 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-27 16:14:51,138 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-27 16:14:51,138 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-08-27 16:14:51,139 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-08-27 16:14:51,139 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-08-27 16:14:51,139 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-27 16:14:51,139 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-27 16:14:51,139 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-08-27 16:14:51,139 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-27 16:14:51,140 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-08-27 16:14:51,140 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-27 16:14:51,140 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-27 16:14:51,140 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-27 16:14:51,140 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-08-27 16:14:51,141 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-08-27 16:14:51,142 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-08-27 16:14:51,142 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 66b586d6027b93241761f1d47a4909c4b4135d36 [2021-08-27 16:14:51,451 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-27 16:14:51,472 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-27 16:14:51,475 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-27 16:14:51,476 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-27 16:14:51,477 INFO L275 PluginConnector]: CDTParser initialized [2021-08-27 16:14:51,477 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec4_product14.cil.c [2021-08-27 16:14:51,529 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3480176ca/ba402b64e332451a8ad400b8a49da652/FLAG941282207 [2021-08-27 16:14:52,007 INFO L306 CDTParser]: Found 1 translation units. [2021-08-27 16:14:52,008 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec4_product14.cil.c [2021-08-27 16:14:52,019 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3480176ca/ba402b64e332451a8ad400b8a49da652/FLAG941282207 [2021-08-27 16:14:52,500 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3480176ca/ba402b64e332451a8ad400b8a49da652 [2021-08-27 16:14:52,503 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-27 16:14:52,504 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-08-27 16:14:52,506 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-27 16:14:52,506 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-27 16:14:52,522 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-27 16:14:52,523 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 04:14:52" (1/1) ... [2021-08-27 16:14:52,523 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@61852171 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:14:52, skipping insertion in model container [2021-08-27 16:14:52,523 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 04:14:52" (1/1) ... [2021-08-27 16:14:52,529 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-27 16:14:52,578 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-27 16:14:52,754 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec4_product14.cil.c[15656,15669] [2021-08-27 16:14:52,759 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-27 16:14:52,768 INFO L203 MainTranslator]: Completed pre-run [2021-08-27 16:14:52,843 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec4_product14.cil.c[15656,15669] [2021-08-27 16:14:52,858 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-27 16:14:52,898 INFO L208 MainTranslator]: Completed translation [2021-08-27 16:14:52,899 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:14:52 WrapperNode [2021-08-27 16:14:52,899 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-27 16:14:52,901 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-08-27 16:14:52,901 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-08-27 16:14:52,901 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-08-27 16:14:52,906 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:14:52" (1/1) ... [2021-08-27 16:14:52,930 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:14:52" (1/1) ... [2021-08-27 16:14:52,970 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-08-27 16:14:52,973 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-27 16:14:52,973 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-27 16:14:52,973 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-27 16:14:52,980 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:14:52" (1/1) ... [2021-08-27 16:14:52,980 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:14:52" (1/1) ... [2021-08-27 16:14:52,988 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:14:52" (1/1) ... [2021-08-27 16:14:52,988 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:14:52" (1/1) ... [2021-08-27 16:14:53,001 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:14:52" (1/1) ... [2021-08-27 16:14:53,016 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:14:52" (1/1) ... [2021-08-27 16:14:53,020 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:14:52" (1/1) ... [2021-08-27 16:14:53,025 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-27 16:14:53,026 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-27 16:14:53,027 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-27 16:14:53,027 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-27 16:14:53,028 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:14:52" (1/1) ... [2021-08-27 16:14:53,034 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 16:14:53,039 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 16:14:53,050 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 16:14:53,080 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-08-27 16:14:53,100 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-08-27 16:14:53,101 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-08-27 16:14:53,101 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-27 16:14:53,101 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-27 16:14:53,808 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-27 16:14:53,808 INFO L299 CfgBuilder]: Removed 98 assume(true) statements. [2021-08-27 16:14:53,809 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 04:14:53 BoogieIcfgContainer [2021-08-27 16:14:53,810 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-27 16:14:53,810 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-08-27 16:14:53,811 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-08-27 16:14:53,813 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-08-27 16:14:53,813 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-08-27 16:14:53,814 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 27.08 04:14:52" (1/3) ... [2021-08-27 16:14:53,814 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4b72268e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 27.08 04:14:53, skipping insertion in model container [2021-08-27 16:14:53,815 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-08-27 16:14:53,815 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:14:52" (2/3) ... [2021-08-27 16:14:53,815 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4b72268e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 27.08 04:14:53, skipping insertion in model container [2021-08-27 16:14:53,815 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-08-27 16:14:53,815 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 04:14:53" (3/3) ... [2021-08-27 16:14:53,816 INFO L389 chiAutomizerObserver]: Analyzing ICFG minepump_spec4_product14.cil.c [2021-08-27 16:14:53,850 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-08-27 16:14:53,850 INFO L360 BuchiCegarLoop]: Hoare is false [2021-08-27 16:14:53,850 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-08-27 16:14:53,850 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-08-27 16:14:53,850 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-08-27 16:14:53,850 INFO L364 BuchiCegarLoop]: Difference is false [2021-08-27 16:14:53,851 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-08-27 16:14:53,851 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-08-27 16:14:53,863 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 66 states, 65 states have (on average 1.523076923076923) internal successors, (99), 65 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 16:14:53,880 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 41 [2021-08-27 16:14:53,881 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-27 16:14:53,881 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-27 16:14:53,886 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-08-27 16:14:53,887 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 16:14:53,887 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-08-27 16:14:53,887 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 66 states, 65 states have (on average 1.523076923076923) internal successors, (99), 65 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 16:14:53,891 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 41 [2021-08-27 16:14:53,891 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-27 16:14:53,891 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-27 16:14:53,892 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-08-27 16:14:53,892 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 16:14:53,896 INFO L791 eck$LassoCheckResult]: Stem: 60#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(31);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);call #t~string9.base, #t~string9.offset := #Ultimate.allocOnStack(13);call #t~string11.base, #t~string11.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string11.base, #t~string11.offset, 1);call write~init~int(77, #t~string11.base, 1 + #t~string11.offset, 1);call write~init~int(101, #t~string11.base, 2 + #t~string11.offset, 1);call write~init~int(116, #t~string11.base, 3 + #t~string11.offset, 1);call write~init~int(104, #t~string11.base, 4 + #t~string11.offset, 1);call write~init~int(58, #t~string11.base, 5 + #t~string11.offset, 1);call write~init~int(0, #t~string11.base, 6 + #t~string11.offset, 1);call #t~string13.base, #t~string13.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string13.base, #t~string13.offset, 1);call write~init~int(82, #t~string13.base, 1 + #t~string13.offset, 1);call write~init~int(73, #t~string13.base, 2 + #t~string13.offset, 1);call write~init~int(84, #t~string13.base, 3 + #t~string13.offset, 1);call write~init~int(0, #t~string13.base, 4 + #t~string13.offset, 1);call #t~string15.base, #t~string15.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string15.base, #t~string15.offset, 1);call write~init~int(75, #t~string15.base, 1 + #t~string15.offset, 1);call write~init~int(0, #t~string15.base, 2 + #t~string15.offset, 1);call #t~string17.base, #t~string17.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string17.base, #t~string17.offset, 1);call write~init~int(0, #t~string17.base, 1 + #t~string17.offset, 1);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(21);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(30);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(9);call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(21);call #t~string45.base, #t~string45.offset := #Ultimate.allocOnStack(30);call #t~string46.base, #t~string46.offset := #Ultimate.allocOnStack(9);call #t~string47.base, #t~string47.offset := #Ultimate.allocOnStack(25);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(30);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(9);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(25);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(13);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string63.base, #t~string63.offset, 1);call write~init~int(110, #t~string63.base, 1 + #t~string63.offset, 1);call write~init~int(0, #t~string63.base, 2 + #t~string63.offset, 1);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string65.base, #t~string65.offset, 1);call write~init~int(102, #t~string65.base, 1 + #t~string65.offset, 1);call write~init~int(102, #t~string65.base, 2 + #t~string65.offset, 1);call write~init~int(0, #t~string65.base, 3 + #t~string65.offset, 1);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string67.base, #t~string67.offset, 1);call write~init~int(80, #t~string67.base, 1 + #t~string67.offset, 1);call write~init~int(117, #t~string67.base, 2 + #t~string67.offset, 1);call write~init~int(109, #t~string67.base, 3 + #t~string67.offset, 1);call write~init~int(112, #t~string67.base, 4 + #t~string67.offset, 1);call write~init~int(58, #t~string67.base, 5 + #t~string67.offset, 1);call write~init~int(0, #t~string67.base, 6 + #t~string67.offset, 1);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string69.base, #t~string69.offset, 1);call write~init~int(110, #t~string69.base, 1 + #t~string69.offset, 1);call write~init~int(0, #t~string69.base, 2 + #t~string69.offset, 1);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string71.base, #t~string71.offset, 1);call write~init~int(102, #t~string71.base, 1 + #t~string71.offset, 1);call write~init~int(102, #t~string71.base, 2 + #t~string71.offset, 1);call write~init~int(0, #t~string71.base, 3 + #t~string71.offset, 1);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string73.base, #t~string73.offset, 1);call write~init~int(32, #t~string73.base, 1 + #t~string73.offset, 1);call write~init~int(0, #t~string73.base, 2 + #t~string73.offset, 1);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string75.base, #t~string75.offset, 1);call write~init~int(0, #t~string75.base, 1 + #t~string75.offset, 1);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4; 46#L-1true havoc main_#res;havoc main_#t~ret76, main_~retValue_acc~9, main_~tmp~6;havoc main_~retValue_acc~9;havoc main_~tmp~6; 59#L67true havoc valid_product_#res;havoc valid_product_~retValue_acc~1;havoc valid_product_~retValue_acc~1;valid_product_~retValue_acc~1 := 1;valid_product_#res := valid_product_~retValue_acc~1; 66#L75true main_#t~ret76 := valid_product_#res;main_~tmp~6 := main_#t~ret76;havoc main_#t~ret76; 67#L856true assume 0 != main_~tmp~6; 54#L833true havoc test_#t~nondet53, test_#t~nondet54, test_#t~nondet55, test_#t~nondet56, test_~splverifierCounter~0, test_~tmp~3, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~3;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 13#L878-1true [2021-08-27 16:14:53,896 INFO L793 eck$LassoCheckResult]: Loop: 13#L878-1true assume !false; 41#L546true assume test_~splverifierCounter~0 < 4; 39#L547true test_~tmp~3 := test_#t~nondet53;havoc test_#t~nondet53; 65#L555true assume !(0 != test_~tmp~3); 36#L555-1true test_~tmp___0~0 := test_#t~nondet54;havoc test_#t~nondet54; 23#L565true assume !(0 != test_~tmp___0~0); 20#L565-1true test_~tmp___2~0 := test_#t~nondet55;havoc test_#t~nondet55; 17#L575true assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 35#L583-2true assume !(0 != ~pumpRunning~0); 42#L614true assume !(0 != ~systemActive~0); 64#L621true havoc __utac_acc__Specification4_spec__1_#t~ret77, __utac_acc__Specification4_spec__1_#t~ret78, __utac_acc__Specification4_spec__1_~tmp~7, __utac_acc__Specification4_spec__1_~tmp___0~1;havoc __utac_acc__Specification4_spec__1_~tmp~7;havoc __utac_acc__Specification4_spec__1_~tmp___0~1;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~3;havoc getWaterLevel_~retValue_acc~3;getWaterLevel_~retValue_acc~3 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~3; 15#L161true __utac_acc__Specification4_spec__1_#t~ret77 := getWaterLevel_#res;__utac_acc__Specification4_spec__1_~tmp~7 := __utac_acc__Specification4_spec__1_#t~ret77;havoc __utac_acc__Specification4_spec__1_#t~ret77; 57#L878true assume !(0 == __utac_acc__Specification4_spec__1_~tmp~7); 13#L878-1true [2021-08-27 16:14:53,901 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 16:14:53,901 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 1 times [2021-08-27 16:14:53,908 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 16:14:53,908 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [139420727] [2021-08-27 16:14:53,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 16:14:53,909 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 16:14:54,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 16:14:54,150 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 16:14:54,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 16:14:54,291 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 16:14:54,303 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 16:14:54,304 INFO L82 PathProgramCache]: Analyzing trace with hash -1680944957, now seen corresponding path program 1 times [2021-08-27 16:14:54,304 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 16:14:54,305 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1992510479] [2021-08-27 16:14:54,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 16:14:54,305 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 16:14:54,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 16:14:54,376 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 16:14:54,376 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 16:14:54,376 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1992510479] [2021-08-27 16:14:54,377 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1992510479] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-27 16:14:54,377 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-27 16:14:54,377 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-27 16:14:54,382 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [541931611] [2021-08-27 16:14:54,385 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-08-27 16:14:54,387 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 16:14:54,400 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-27 16:14:54,400 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-27 16:14:54,403 INFO L87 Difference]: Start difference. First operand has 66 states, 65 states have (on average 1.523076923076923) internal successors, (99), 65 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 16:14:54,451 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 16:14:54,452 INFO L93 Difference]: Finished difference Result 66 states and 89 transitions. [2021-08-27 16:14:54,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-27 16:14:54,454 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 66 states and 89 transitions. [2021-08-27 16:14:54,465 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 39 [2021-08-27 16:14:54,470 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 66 states to 59 states and 81 transitions. [2021-08-27 16:14:54,471 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 59 [2021-08-27 16:14:54,471 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 59 [2021-08-27 16:14:54,473 INFO L73 IsDeterministic]: Start isDeterministic. Operand 59 states and 81 transitions. [2021-08-27 16:14:54,473 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-27 16:14:54,473 INFO L681 BuchiCegarLoop]: Abstraction has 59 states and 81 transitions. [2021-08-27 16:14:54,485 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states and 81 transitions. [2021-08-27 16:14:54,495 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 59. [2021-08-27 16:14:54,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59 states, 59 states have (on average 1.3728813559322033) internal successors, (81), 58 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 16:14:54,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 81 transitions. [2021-08-27 16:14:54,508 INFO L704 BuchiCegarLoop]: Abstraction has 59 states and 81 transitions. [2021-08-27 16:14:54,508 INFO L587 BuchiCegarLoop]: Abstraction has 59 states and 81 transitions. [2021-08-27 16:14:54,508 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-08-27 16:14:54,509 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 59 states and 81 transitions. [2021-08-27 16:14:54,513 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 39 [2021-08-27 16:14:54,514 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-27 16:14:54,514 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-27 16:14:54,515 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-08-27 16:14:54,515 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 16:14:54,516 INFO L791 eck$LassoCheckResult]: Stem: 198#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~string9.base, #t~string9.offset := #Ultimate.allocOnStack(13);call #t~string11.base, #t~string11.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string11.base, #t~string11.offset, 1);call write~init~int(77, #t~string11.base, 1 + #t~string11.offset, 1);call write~init~int(101, #t~string11.base, 2 + #t~string11.offset, 1);call write~init~int(116, #t~string11.base, 3 + #t~string11.offset, 1);call write~init~int(104, #t~string11.base, 4 + #t~string11.offset, 1);call write~init~int(58, #t~string11.base, 5 + #t~string11.offset, 1);call write~init~int(0, #t~string11.base, 6 + #t~string11.offset, 1);call #t~string13.base, #t~string13.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string13.base, #t~string13.offset, 1);call write~init~int(82, #t~string13.base, 1 + #t~string13.offset, 1);call write~init~int(73, #t~string13.base, 2 + #t~string13.offset, 1);call write~init~int(84, #t~string13.base, 3 + #t~string13.offset, 1);call write~init~int(0, #t~string13.base, 4 + #t~string13.offset, 1);call #t~string15.base, #t~string15.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string15.base, #t~string15.offset, 1);call write~init~int(75, #t~string15.base, 1 + #t~string15.offset, 1);call write~init~int(0, #t~string15.base, 2 + #t~string15.offset, 1);call #t~string17.base, #t~string17.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string17.base, #t~string17.offset, 1);call write~init~int(0, #t~string17.base, 1 + #t~string17.offset, 1);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(21);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(30);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(9);call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(21);call #t~string45.base, #t~string45.offset := #Ultimate.allocOnStack(30);call #t~string46.base, #t~string46.offset := #Ultimate.allocOnStack(9);call #t~string47.base, #t~string47.offset := #Ultimate.allocOnStack(25);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(30);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(9);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(25);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(13);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string63.base, #t~string63.offset, 1);call write~init~int(110, #t~string63.base, 1 + #t~string63.offset, 1);call write~init~int(0, #t~string63.base, 2 + #t~string63.offset, 1);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string65.base, #t~string65.offset, 1);call write~init~int(102, #t~string65.base, 1 + #t~string65.offset, 1);call write~init~int(102, #t~string65.base, 2 + #t~string65.offset, 1);call write~init~int(0, #t~string65.base, 3 + #t~string65.offset, 1);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string67.base, #t~string67.offset, 1);call write~init~int(80, #t~string67.base, 1 + #t~string67.offset, 1);call write~init~int(117, #t~string67.base, 2 + #t~string67.offset, 1);call write~init~int(109, #t~string67.base, 3 + #t~string67.offset, 1);call write~init~int(112, #t~string67.base, 4 + #t~string67.offset, 1);call write~init~int(58, #t~string67.base, 5 + #t~string67.offset, 1);call write~init~int(0, #t~string67.base, 6 + #t~string67.offset, 1);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string69.base, #t~string69.offset, 1);call write~init~int(110, #t~string69.base, 1 + #t~string69.offset, 1);call write~init~int(0, #t~string69.base, 2 + #t~string69.offset, 1);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string71.base, #t~string71.offset, 1);call write~init~int(102, #t~string71.base, 1 + #t~string71.offset, 1);call write~init~int(102, #t~string71.base, 2 + #t~string71.offset, 1);call write~init~int(0, #t~string71.base, 3 + #t~string71.offset, 1);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string73.base, #t~string73.offset, 1);call write~init~int(32, #t~string73.base, 1 + #t~string73.offset, 1);call write~init~int(0, #t~string73.base, 2 + #t~string73.offset, 1);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string75.base, #t~string75.offset, 1);call write~init~int(0, #t~string75.base, 1 + #t~string75.offset, 1);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4; 191#L-1 havoc main_#res;havoc main_#t~ret76, main_~retValue_acc~9, main_~tmp~6;havoc main_~retValue_acc~9;havoc main_~tmp~6; 192#L67 havoc valid_product_#res;havoc valid_product_~retValue_acc~1;havoc valid_product_~retValue_acc~1;valid_product_~retValue_acc~1 := 1;valid_product_#res := valid_product_~retValue_acc~1; 197#L75 main_#t~ret76 := valid_product_#res;main_~tmp~6 := main_#t~ret76;havoc main_#t~ret76; 199#L856 assume 0 != main_~tmp~6; 193#L833 havoc test_#t~nondet53, test_#t~nondet54, test_#t~nondet55, test_#t~nondet56, test_~splverifierCounter~0, test_~tmp~3, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~3;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 159#L878-1 [2021-08-27 16:14:54,516 INFO L793 eck$LassoCheckResult]: Loop: 159#L878-1 assume !false; 160#L546 assume test_~splverifierCounter~0 < 4; 187#L547 test_~tmp~3 := test_#t~nondet53;havoc test_#t~nondet53; 188#L555 assume !(0 != test_~tmp~3); 177#L555-1 test_~tmp___0~0 := test_#t~nondet54;havoc test_#t~nondet54; 174#L565 assume !(0 != test_~tmp___0~0); 170#L565-1 test_~tmp___2~0 := test_#t~nondet55;havoc test_#t~nondet55; 166#L575 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 167#L583-2 assume !(0 != ~pumpRunning~0); 184#L614 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret57, processEnvironment_~tmp~4;havoc processEnvironment_~tmp~4; 178#L646 assume !(0 != ~pumpRunning~0); 179#L621 havoc __utac_acc__Specification4_spec__1_#t~ret77, __utac_acc__Specification4_spec__1_#t~ret78, __utac_acc__Specification4_spec__1_~tmp~7, __utac_acc__Specification4_spec__1_~tmp___0~1;havoc __utac_acc__Specification4_spec__1_~tmp~7;havoc __utac_acc__Specification4_spec__1_~tmp___0~1;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~3;havoc getWaterLevel_~retValue_acc~3;getWaterLevel_~retValue_acc~3 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~3; 164#L161 __utac_acc__Specification4_spec__1_#t~ret77 := getWaterLevel_#res;__utac_acc__Specification4_spec__1_~tmp~7 := __utac_acc__Specification4_spec__1_#t~ret77;havoc __utac_acc__Specification4_spec__1_#t~ret77; 165#L878 assume !(0 == __utac_acc__Specification4_spec__1_~tmp~7); 159#L878-1 [2021-08-27 16:14:54,516 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 16:14:54,517 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 2 times [2021-08-27 16:14:54,517 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 16:14:54,517 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1295298897] [2021-08-27 16:14:54,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 16:14:54,518 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 16:14:54,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 16:14:54,571 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 16:14:54,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 16:14:54,654 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 16:14:54,655 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 16:14:54,655 INFO L82 PathProgramCache]: Analyzing trace with hash -590214405, now seen corresponding path program 1 times [2021-08-27 16:14:54,655 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 16:14:54,655 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1483292706] [2021-08-27 16:14:54,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 16:14:54,656 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 16:14:54,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 16:14:54,661 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 16:14:54,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 16:14:54,669 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 16:14:54,671 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 16:14:54,672 INFO L82 PathProgramCache]: Analyzing trace with hash 1012825121, now seen corresponding path program 1 times [2021-08-27 16:14:54,672 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 16:14:54,672 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1351962155] [2021-08-27 16:14:54,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 16:14:54,674 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 16:14:54,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 16:14:54,718 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 16:14:54,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 16:14:54,775 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 16:15:35,392 WARN L207 SmtUtils]: Spent 40.47 s on a formula simplification. DAG size of input: 491 DAG size of output: 433 [2021-08-27 16:16:17,014 WARN L207 SmtUtils]: Spent 20.37 s on a formula simplification that was a NOOP. DAG size: 433 [2021-08-27 16:16:17,099 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 27.08 04:16:17 BoogieIcfgContainer [2021-08-27 16:16:17,101 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-08-27 16:16:17,101 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-08-27 16:16:17,103 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-08-27 16:16:17,103 INFO L275 PluginConnector]: Witness Printer initialized [2021-08-27 16:16:17,108 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 04:14:53" (3/4) ... [2021-08-27 16:16:17,110 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2021-08-27 16:16:17,163 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-08-27 16:16:17,163 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-08-27 16:16:17,164 INFO L168 Benchmark]: Toolchain (without parser) took 84659.06 ms. Allocated memory was 62.9 MB in the beginning and 92.3 MB in the end (delta: 29.4 MB). Free memory was 42.9 MB in the beginning and 37.3 MB in the end (delta: 5.6 MB). Peak memory consumption was 36.5 MB. Max. memory is 16.1 GB. [2021-08-27 16:16:17,164 INFO L168 Benchmark]: CDTParser took 0.10 ms. Allocated memory is still 62.9 MB. Free memory is still 45.2 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-08-27 16:16:17,165 INFO L168 Benchmark]: CACSL2BoogieTranslator took 394.40 ms. Allocated memory is still 62.9 MB. Free memory was 42.6 MB in the beginning and 45.2 MB in the end (delta: -2.6 MB). Peak memory consumption was 23.6 MB. Max. memory is 16.1 GB. [2021-08-27 16:16:17,165 INFO L168 Benchmark]: Boogie Procedure Inliner took 71.83 ms. Allocated memory is still 62.9 MB. Free memory was 45.2 MB in the beginning and 42.4 MB in the end (delta: 2.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-08-27 16:16:17,166 INFO L168 Benchmark]: Boogie Preprocessor took 51.92 ms. Allocated memory is still 62.9 MB. Free memory was 42.4 MB in the beginning and 40.2 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-08-27 16:16:17,166 INFO L168 Benchmark]: RCFGBuilder took 784.03 ms. Allocated memory was 62.9 MB in the beginning and 75.5 MB in the end (delta: 12.6 MB). Free memory was 40.2 MB in the beginning and 44.9 MB in the end (delta: -4.8 MB). Peak memory consumption was 23.0 MB. Max. memory is 16.1 GB. [2021-08-27 16:16:17,167 INFO L168 Benchmark]: BuchiAutomizer took 83290.46 ms. Allocated memory was 75.5 MB in the beginning and 92.3 MB in the end (delta: 16.8 MB). Free memory was 44.9 MB in the beginning and 39.4 MB in the end (delta: 5.5 MB). Peak memory consumption was 47.0 MB. Max. memory is 16.1 GB. [2021-08-27 16:16:17,168 INFO L168 Benchmark]: Witness Printer took 61.61 ms. Allocated memory is still 92.3 MB. Free memory was 39.4 MB in the beginning and 37.3 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-08-27 16:16:17,171 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10 ms. Allocated memory is still 62.9 MB. Free memory is still 45.2 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 394.40 ms. Allocated memory is still 62.9 MB. Free memory was 42.6 MB in the beginning and 45.2 MB in the end (delta: -2.6 MB). Peak memory consumption was 23.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 71.83 ms. Allocated memory is still 62.9 MB. Free memory was 45.2 MB in the beginning and 42.4 MB in the end (delta: 2.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 51.92 ms. Allocated memory is still 62.9 MB. Free memory was 42.4 MB in the beginning and 40.2 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 784.03 ms. Allocated memory was 62.9 MB in the beginning and 75.5 MB in the end (delta: 12.6 MB). Free memory was 40.2 MB in the beginning and 44.9 MB in the end (delta: -4.8 MB). Peak memory consumption was 23.0 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 83290.46 ms. Allocated memory was 75.5 MB in the beginning and 92.3 MB in the end (delta: 16.8 MB). Free memory was 44.9 MB in the beginning and 39.4 MB in the end (delta: 5.5 MB). Peak memory consumption was 47.0 MB. Max. memory is 16.1 GB. * Witness Printer took 61.61 ms. Allocated memory is still 92.3 MB. Free memory was 39.4 MB in the beginning and 37.3 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 3 locations. The remainder module has 59 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 83.2s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 83.0s. 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 24.4ms AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 59 states and ocurred in iteration 1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 86 SDtfs, 86 SDslu, 0 SDs, 0 SdLazy, 3 SolverSat, 3 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 22.2ms 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: 545]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=13915} State at position 1 is {NULL=13916, NULL=0, NULL=0, NULL=0, NULL=0, NULL=13915, NULL=13928, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@308c78e4=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7f607be4=0, NULL=13940, NULL=0, NULL=0, NULL=0, NULL=13929, NULL=13918, retValue_acc=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@75cff9c7=0, NULL=13923, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@27ac6613=0, methaneLevelCritical=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@745bf9d3=0, NULL=13924, tmp=0, NULL=0, NULL=0, NULL=13937, NULL=0, tmp___1=0, NULL=0, NULL=0, NULL=13938, tmp___0=0, NULL=13925, cleanupTimeShifts=4, NULL=13936, NULL=13926, NULL=13922, NULL=0, systemActive=1, waterLevel=1, NULL=13931, \result=1, NULL=0, NULL=0, NULL=13930, tmp___0=0, NULL=0, retValue_acc=1, NULL=13921, \result=1, head=0, pumpRunning=0, NULL=13934, \result=0, NULL=0, NULL=0, tmp=1, NULL=0, NULL=13932, NULL=13933, NULL=13935, NULL=0, NULL=13943, NULL=0, NULL=13917, retValue_acc=1, tmp=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6777b167=0, tmp___2=70, NULL=0, splverifierCounter=0, NULL=0, NULL=0, NULL=13942, NULL=13919, NULL=13920, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@488929ec=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@46edb12b=70, head=0, tmp=0, NULL=0, NULL=0, NULL=13939, NULL=0, NULL=0, NULL=13927, NULL=0, NULL=13941} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L86] int waterLevel = 1; [L87] int methaneLevelCritical = 0; [L335] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L606] int pumpRunning = 0; [L607] int systemActive = 1; [L774] int cleanupTimeShifts = 4; [L847] int retValue_acc ; [L848] int tmp ; [L71] int retValue_acc ; [L74] retValue_acc = 1 [L75] return (retValue_acc); [L854] tmp = valid_product() [L856] COND TRUE \read(tmp) [L536] int splverifierCounter ; [L537] int tmp ; [L538] int tmp___0 ; [L539] int tmp___1 ; [L540] int tmp___2 ; [L543] splverifierCounter = 0 Loop: [L545] COND TRUE 1 [L547] COND TRUE splverifierCounter < 4 [L553] tmp = __VERIFIER_nondet_int() [L555] COND FALSE !(\read(tmp)) [L563] tmp___0 = __VERIFIER_nondet_int() [L565] COND FALSE !(\read(tmp___0)) [L573] tmp___2 = __VERIFIER_nondet_int() [L575] COND TRUE \read(tmp___2) [L760] systemActive = 1 [L614] COND FALSE !(\read(pumpRunning)) [L621] COND TRUE \read(systemActive) [L643] int tmp ; [L646] COND FALSE !(\read(pumpRunning)) [L871] int tmp ; [L872] int tmp___0 ; [L157] int retValue_acc ; [L160] retValue_acc = waterLevel [L161] return (retValue_acc); [L876] tmp = getWaterLevel() [L878] COND FALSE !(tmp == 0) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2021-08-27 16:16:17,231 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...