./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/minepump_spec4_product64.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_product64.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 160c8d64ba84e9e53149049b180f0e762ed5d721 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 20:32:04,830 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-07-06 20:32:04,831 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-07-06 20:32:04,871 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-07-06 20:32:04,872 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-07-06 20:32:04,874 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-07-06 20:32:04,875 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-07-06 20:32:04,879 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-07-06 20:32:04,880 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-07-06 20:32:04,883 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-07-06 20:32:04,884 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-07-06 20:32:04,885 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-07-06 20:32:04,885 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-07-06 20:32:04,887 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-07-06 20:32:04,888 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-07-06 20:32:04,889 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-07-06 20:32:04,890 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-07-06 20:32:04,891 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-07-06 20:32:04,892 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-07-06 20:32:04,897 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-07-06 20:32:04,897 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-07-06 20:32:04,898 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-07-06 20:32:04,899 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-07-06 20:32:04,900 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-07-06 20:32:04,904 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-07-06 20:32:04,905 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-07-06 20:32:04,905 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-07-06 20:32:04,906 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-07-06 20:32:04,906 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-07-06 20:32:04,907 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-07-06 20:32:04,907 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-07-06 20:32:04,907 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-07-06 20:32:04,908 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-07-06 20:32:04,909 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-07-06 20:32:04,909 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-07-06 20:32:04,909 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-07-06 20:32:04,910 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-07-06 20:32:04,910 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-07-06 20:32:04,910 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-07-06 20:32:04,911 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-07-06 20:32:04,911 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-07-06 20:32:04,914 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-07-06 20:32:04,941 INFO L113 SettingsManager]: Loading preferences was successful [2021-07-06 20:32:04,941 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-07-06 20:32:04,943 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-07-06 20:32:04,943 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-07-06 20:32:04,943 INFO L138 SettingsManager]: * Use SBE=true [2021-07-06 20:32:04,943 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-07-06 20:32:04,943 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-07-06 20:32:04,944 INFO L138 SettingsManager]: * Use old map elimination=false [2021-07-06 20:32:04,944 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-07-06 20:32:04,944 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-07-06 20:32:04,944 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-07-06 20:32:04,945 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-07-06 20:32:04,945 INFO L138 SettingsManager]: * sizeof long=4 [2021-07-06 20:32:04,945 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-07-06 20:32:04,945 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-07-06 20:32:04,945 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-07-06 20:32:04,945 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-07-06 20:32:04,945 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-07-06 20:32:04,945 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-07-06 20:32:04,945 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-07-06 20:32:04,946 INFO L138 SettingsManager]: * sizeof long double=12 [2021-07-06 20:32:04,946 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-07-06 20:32:04,946 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-07-06 20:32:04,946 INFO L138 SettingsManager]: * Use constant arrays=true [2021-07-06 20:32:04,946 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-07-06 20:32:04,946 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-07-06 20:32:04,946 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-07-06 20:32:04,946 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-07-06 20:32:04,946 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-07-06 20:32:04,946 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-07-06 20:32:04,947 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-07-06 20:32:04,947 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 160c8d64ba84e9e53149049b180f0e762ed5d721 [2021-07-06 20:32:05,193 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-07-06 20:32:05,208 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-07-06 20:32:05,209 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-07-06 20:32:05,210 INFO L271 PluginConnector]: Initializing CDTParser... [2021-07-06 20:32:05,211 INFO L275 PluginConnector]: CDTParser initialized [2021-07-06 20:32:05,211 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec4_product64.cil.c [2021-07-06 20:32:05,262 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/724541f8f/acab5809bc6f408885d51d1b4e1abdb1/FLAG65e32fdc8 [2021-07-06 20:32:05,702 INFO L306 CDTParser]: Found 1 translation units. [2021-07-06 20:32:05,702 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec4_product64.cil.c [2021-07-06 20:32:05,715 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/724541f8f/acab5809bc6f408885d51d1b4e1abdb1/FLAG65e32fdc8 [2021-07-06 20:32:05,728 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/724541f8f/acab5809bc6f408885d51d1b4e1abdb1 [2021-07-06 20:32:05,730 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-07-06 20:32:05,731 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-07-06 20:32:05,734 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-07-06 20:32:05,734 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-07-06 20:32:05,737 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-07-06 20:32:05,737 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.07 08:32:05" (1/1) ... [2021-07-06 20:32:05,738 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6b86b82 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 08:32:05, skipping insertion in model container [2021-07-06 20:32:05,738 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.07 08:32:05" (1/1) ... [2021-07-06 20:32:05,742 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-07-06 20:32:05,782 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-07-06 20:32:05,953 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_product64.cil.c[2573,2586] [2021-07-06 20:32:06,046 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-07-06 20:32:06,060 INFO L203 MainTranslator]: Completed pre-run [2021-07-06 20:32:06,083 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_product64.cil.c[2573,2586] [2021-07-06 20:32:06,114 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-07-06 20:32:06,140 INFO L208 MainTranslator]: Completed translation [2021-07-06 20:32:06,141 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 08:32:06 WrapperNode [2021-07-06 20:32:06,144 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-07-06 20:32:06,145 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-07-06 20:32:06,145 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-07-06 20:32:06,145 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-07-06 20:32:06,149 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 08:32:06" (1/1) ... [2021-07-06 20:32:06,164 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 08:32:06" (1/1) ... [2021-07-06 20:32:06,206 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-07-06 20:32:06,206 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-07-06 20:32:06,206 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-07-06 20:32:06,217 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-07-06 20:32:06,223 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 08:32:06" (1/1) ... [2021-07-06 20:32:06,223 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 08:32:06" (1/1) ... [2021-07-06 20:32:06,229 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 08:32:06" (1/1) ... [2021-07-06 20:32:06,230 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 08:32:06" (1/1) ... [2021-07-06 20:32:06,240 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 08:32:06" (1/1) ... [2021-07-06 20:32:06,248 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 08:32:06" (1/1) ... [2021-07-06 20:32:06,265 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 08:32:06" (1/1) ... [2021-07-06 20:32:06,269 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-07-06 20:32:06,270 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-07-06 20:32:06,270 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-07-06 20:32:06,270 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-07-06 20:32:06,271 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 08:32:06" (1/1) ... [2021-07-06 20:32:06,276 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-07-06 20:32:06,281 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-07-06 20:32:06,288 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 20:32:06,307 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 20:32:06,332 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-07-06 20:32:06,333 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-07-06 20:32:06,333 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-07-06 20:32:06,333 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-07-06 20:32:07,116 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-07-06 20:32:07,116 INFO L299 CfgBuilder]: Removed 354 assume(true) statements. [2021-07-06 20:32:07,118 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.07 08:32:07 BoogieIcfgContainer [2021-07-06 20:32:07,118 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-07-06 20:32:07,118 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-07-06 20:32:07,119 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-07-06 20:32:07,120 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-07-06 20:32:07,121 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-07-06 20:32:07,121 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 06.07 08:32:05" (1/3) ... [2021-07-06 20:32:07,122 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3a05b434 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 06.07 08:32:07, skipping insertion in model container [2021-07-06 20:32:07,122 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-07-06 20:32:07,122 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 08:32:06" (2/3) ... [2021-07-06 20:32:07,123 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3a05b434 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 06.07 08:32:07, skipping insertion in model container [2021-07-06 20:32:07,123 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-07-06 20:32:07,123 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.07 08:32:07" (3/3) ... [2021-07-06 20:32:07,124 INFO L389 chiAutomizerObserver]: Analyzing ICFG minepump_spec4_product64.cil.c [2021-07-06 20:32:07,156 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-07-06 20:32:07,156 INFO L360 BuchiCegarLoop]: Hoare is false [2021-07-06 20:32:07,156 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-07-06 20:32:07,156 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-07-06 20:32:07,156 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-07-06 20:32:07,157 INFO L364 BuchiCegarLoop]: Difference is false [2021-07-06 20:32:07,157 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-07-06 20:32:07,157 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-07-06 20:32:07,177 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 224 states, 223 states have (on average 1.506726457399103) internal successors, (336), 223 states have internal predecessors, (336), 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 20:32:07,211 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 147 [2021-07-06 20:32:07,212 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-07-06 20:32:07,212 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-07-06 20:32:07,217 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-07-06 20:32:07,218 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-06 20:32:07,218 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-07-06 20:32:07,220 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 224 states, 223 states have (on average 1.506726457399103) internal successors, (336), 223 states have internal predecessors, (336), 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 20:32:07,232 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 147 [2021-07-06 20:32:07,232 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-07-06 20:32:07,232 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-07-06 20:32:07,234 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-07-06 20:32:07,234 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-06 20:32:07,240 INFO L791 eck$LassoCheckResult]: Stem: 111#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~string20.base, #t~string20.offset := #Ultimate.allocOnStack(13);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string22.base, #t~string22.offset, 1);call write~init~int(110, #t~string22.base, 1 + #t~string22.offset, 1);call write~init~int(0, #t~string22.base, 2 + #t~string22.offset, 1);call #t~string24.base, #t~string24.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string24.base, #t~string24.offset, 1);call write~init~int(102, #t~string24.base, 1 + #t~string24.offset, 1);call write~init~int(102, #t~string24.base, 2 + #t~string24.offset, 1);call write~init~int(0, #t~string24.base, 3 + #t~string24.offset, 1);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string26.base, #t~string26.offset, 1);call write~init~int(80, #t~string26.base, 1 + #t~string26.offset, 1);call write~init~int(117, #t~string26.base, 2 + #t~string26.offset, 1);call write~init~int(109, #t~string26.base, 3 + #t~string26.offset, 1);call write~init~int(112, #t~string26.base, 4 + #t~string26.offset, 1);call write~init~int(58, #t~string26.base, 5 + #t~string26.offset, 1);call write~init~int(0, #t~string26.base, 6 + #t~string26.offset, 1);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string28.base, #t~string28.offset, 1);call write~init~int(110, #t~string28.base, 1 + #t~string28.offset, 1);call write~init~int(0, #t~string28.base, 2 + #t~string28.offset, 1);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string30.base, #t~string30.offset, 1);call write~init~int(102, #t~string30.base, 1 + #t~string30.offset, 1);call write~init~int(102, #t~string30.base, 2 + #t~string30.offset, 1);call write~init~int(0, #t~string30.base, 3 + #t~string30.offset, 1);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string32.base, #t~string32.offset, 1);call write~init~int(32, #t~string32.base, 1 + #t~string32.offset, 1);call write~init~int(0, #t~string32.base, 2 + #t~string32.offset, 1);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string34.base, #t~string34.offset, 1);call write~init~int(0, #t~string34.base, 1 + #t~string34.offset, 1);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(30);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(9);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(21);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(30);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(9);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(21);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(30);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(9);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(25);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(30);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(9);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(25);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(13);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string75.base, #t~string75.offset, 1);call write~init~int(77, #t~string75.base, 1 + #t~string75.offset, 1);call write~init~int(101, #t~string75.base, 2 + #t~string75.offset, 1);call write~init~int(116, #t~string75.base, 3 + #t~string75.offset, 1);call write~init~int(104, #t~string75.base, 4 + #t~string75.offset, 1);call write~init~int(58, #t~string75.base, 5 + #t~string75.offset, 1);call write~init~int(0, #t~string75.base, 6 + #t~string75.offset, 1);call #t~string77.base, #t~string77.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string77.base, #t~string77.offset, 1);call write~init~int(82, #t~string77.base, 1 + #t~string77.offset, 1);call write~init~int(73, #t~string77.base, 2 + #t~string77.offset, 1);call write~init~int(84, #t~string77.base, 3 + #t~string77.offset, 1);call write~init~int(0, #t~string77.base, 4 + #t~string77.offset, 1);call #t~string79.base, #t~string79.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string79.base, #t~string79.offset, 1);call write~init~int(75, #t~string79.base, 1 + #t~string79.offset, 1);call write~init~int(0, #t~string79.base, 2 + #t~string79.offset, 1);call #t~string81.base, #t~string81.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string81.base, #t~string81.offset, 1);call write~init~int(0, #t~string81.base, 1 + #t~string81.offset, 1);~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 8#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; 224#L1015true havoc valid_product_#res;havoc valid_product_~retValue_acc~13;havoc valid_product_~retValue_acc~13;valid_product_~retValue_acc~13 := 1;valid_product_#res := valid_product_~retValue_acc~13; 7#L1023true main_#t~ret7 := valid_product_#res;main_~tmp~0 := main_#t~ret7;havoc main_#t~ret7; 122#L132true assume 0 != main_~tmp~0; 162#L105true havoc test_#t~nondet10, test_#t~nondet11, test_#t~nondet12, test_#t~nondet13, test_~splverifierCounter~0, test_~tmp~2, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~2;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 123#L165-1true [2021-07-06 20:32:07,240 INFO L793 eck$LassoCheckResult]: Loop: 123#L165-1true assume !false; 84#L196true assume test_~splverifierCounter~0 < 4; 4#L197true test_~tmp~2 := test_#t~nondet10;havoc test_#t~nondet10; 151#L205true assume !(0 != test_~tmp~2); 150#L205-1true test_~tmp___0~1 := test_#t~nondet11;havoc test_#t~nondet11; 99#L215true assume !(0 != test_~tmp___0~1); 96#L215-1true test_~tmp___2~0 := test_#t~nondet12;havoc test_#t~nondet12; 129#L225true assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 225#L233-1true assume !(0 != ~pumpRunning~0); 62#L268true assume !(0 != ~systemActive~0); 107#L275true havoc __utac_acc__Specification4_spec__1_#t~ret8, __utac_acc__Specification4_spec__1_#t~ret9, __utac_acc__Specification4_spec__1_~tmp~1, __utac_acc__Specification4_spec__1_~tmp___0~0;havoc __utac_acc__Specification4_spec__1_~tmp~1;havoc __utac_acc__Specification4_spec__1_~tmp___0~0;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~9;havoc getWaterLevel_~retValue_acc~9;getWaterLevel_~retValue_acc~9 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~9; 137#L965true __utac_acc__Specification4_spec__1_#t~ret8 := getWaterLevel_#res;__utac_acc__Specification4_spec__1_~tmp~1 := __utac_acc__Specification4_spec__1_#t~ret8;havoc __utac_acc__Specification4_spec__1_#t~ret8; 104#L165true assume !(0 == __utac_acc__Specification4_spec__1_~tmp~1); 123#L165-1true [2021-07-06 20:32:07,245 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-06 20:32:07,245 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 1 times [2021-07-06 20:32:07,250 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-06 20:32:07,251 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1790069917] [2021-07-06 20:32:07,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-06 20:32:07,252 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-07-06 20:32:07,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-06 20:32:07,435 INFO L224 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-06 20:32:07,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-06 20:32:07,517 INFO L224 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-06 20:32:07,547 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-07-06 20:32:07,549 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-06 20:32:07,549 INFO L82 PathProgramCache]: Analyzing trace with hash -1665583732, now seen corresponding path program 1 times [2021-07-06 20:32:07,549 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-06 20:32:07,550 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [776655749] [2021-07-06 20:32:07,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-06 20:32:07,551 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-07-06 20:32:07,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-06 20:32:07,592 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 20:32:07,592 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-06 20:32:07,593 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 20:32:07,594 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-06 20:32:07,602 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 20:32:07,602 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-06 20:32:07,604 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 20:32:07,604 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-06 20:32:07,605 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [776655749] [2021-07-06 20:32:07,605 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [776655749] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-06 20:32:07,605 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-06 20:32:07,605 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-07-06 20:32:07,606 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [393838957] [2021-07-06 20:32:07,608 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-07-06 20:32:07,609 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-06 20:32:07,628 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-07-06 20:32:07,629 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-07-06 20:32:07,630 INFO L87 Difference]: Start difference. First operand has 224 states, 223 states have (on average 1.506726457399103) internal successors, (336), 223 states have internal predecessors, (336), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-06 20:32:07,690 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-06 20:32:07,690 INFO L93 Difference]: Finished difference Result 442 states and 648 transitions. [2021-07-06 20:32:07,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-06 20:32:07,692 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 442 states and 648 transitions. [2021-07-06 20:32:07,697 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 290 [2021-07-06 20:32:07,704 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 442 states to 428 states and 633 transitions. [2021-07-06 20:32:07,705 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 428 [2021-07-06 20:32:07,706 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 428 [2021-07-06 20:32:07,707 INFO L73 IsDeterministic]: Start isDeterministic. Operand 428 states and 633 transitions. [2021-07-06 20:32:07,713 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-07-06 20:32:07,713 INFO L681 BuchiCegarLoop]: Abstraction has 428 states and 633 transitions. [2021-07-06 20:32:07,723 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 428 states and 633 transitions. [2021-07-06 20:32:07,741 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 428 to 426. [2021-07-06 20:32:07,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 426 states, 426 states have (on average 1.4788732394366197) internal successors, (630), 425 states have internal predecessors, (630), 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 20:32:07,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 426 states to 426 states and 630 transitions. [2021-07-06 20:32:07,744 INFO L704 BuchiCegarLoop]: Abstraction has 426 states and 630 transitions. [2021-07-06 20:32:07,744 INFO L587 BuchiCegarLoop]: Abstraction has 426 states and 630 transitions. [2021-07-06 20:32:07,744 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-07-06 20:32:07,744 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 426 states and 630 transitions. [2021-07-06 20:32:07,746 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 288 [2021-07-06 20:32:07,746 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-07-06 20:32:07,746 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-07-06 20:32:07,747 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-07-06 20:32:07,747 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-06 20:32:07,747 INFO L791 eck$LassoCheckResult]: Stem: 833#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~string20.base, #t~string20.offset := #Ultimate.allocOnStack(13);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string22.base, #t~string22.offset, 1);call write~init~int(110, #t~string22.base, 1 + #t~string22.offset, 1);call write~init~int(0, #t~string22.base, 2 + #t~string22.offset, 1);call #t~string24.base, #t~string24.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string24.base, #t~string24.offset, 1);call write~init~int(102, #t~string24.base, 1 + #t~string24.offset, 1);call write~init~int(102, #t~string24.base, 2 + #t~string24.offset, 1);call write~init~int(0, #t~string24.base, 3 + #t~string24.offset, 1);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string26.base, #t~string26.offset, 1);call write~init~int(80, #t~string26.base, 1 + #t~string26.offset, 1);call write~init~int(117, #t~string26.base, 2 + #t~string26.offset, 1);call write~init~int(109, #t~string26.base, 3 + #t~string26.offset, 1);call write~init~int(112, #t~string26.base, 4 + #t~string26.offset, 1);call write~init~int(58, #t~string26.base, 5 + #t~string26.offset, 1);call write~init~int(0, #t~string26.base, 6 + #t~string26.offset, 1);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string28.base, #t~string28.offset, 1);call write~init~int(110, #t~string28.base, 1 + #t~string28.offset, 1);call write~init~int(0, #t~string28.base, 2 + #t~string28.offset, 1);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string30.base, #t~string30.offset, 1);call write~init~int(102, #t~string30.base, 1 + #t~string30.offset, 1);call write~init~int(102, #t~string30.base, 2 + #t~string30.offset, 1);call write~init~int(0, #t~string30.base, 3 + #t~string30.offset, 1);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string32.base, #t~string32.offset, 1);call write~init~int(32, #t~string32.base, 1 + #t~string32.offset, 1);call write~init~int(0, #t~string32.base, 2 + #t~string32.offset, 1);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string34.base, #t~string34.offset, 1);call write~init~int(0, #t~string34.base, 1 + #t~string34.offset, 1);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(30);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(9);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(21);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(30);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(9);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(21);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(30);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(9);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(25);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(30);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(9);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(25);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(13);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string75.base, #t~string75.offset, 1);call write~init~int(77, #t~string75.base, 1 + #t~string75.offset, 1);call write~init~int(101, #t~string75.base, 2 + #t~string75.offset, 1);call write~init~int(116, #t~string75.base, 3 + #t~string75.offset, 1);call write~init~int(104, #t~string75.base, 4 + #t~string75.offset, 1);call write~init~int(58, #t~string75.base, 5 + #t~string75.offset, 1);call write~init~int(0, #t~string75.base, 6 + #t~string75.offset, 1);call #t~string77.base, #t~string77.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string77.base, #t~string77.offset, 1);call write~init~int(82, #t~string77.base, 1 + #t~string77.offset, 1);call write~init~int(73, #t~string77.base, 2 + #t~string77.offset, 1);call write~init~int(84, #t~string77.base, 3 + #t~string77.offset, 1);call write~init~int(0, #t~string77.base, 4 + #t~string77.offset, 1);call #t~string79.base, #t~string79.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string79.base, #t~string79.offset, 1);call write~init~int(75, #t~string79.base, 1 + #t~string79.offset, 1);call write~init~int(0, #t~string79.base, 2 + #t~string79.offset, 1);call #t~string81.base, #t~string81.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string81.base, #t~string81.offset, 1);call write~init~int(0, #t~string81.base, 1 + #t~string81.offset, 1);~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 685#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; 686#L1015 havoc valid_product_#res;havoc valid_product_~retValue_acc~13;havoc valid_product_~retValue_acc~13;valid_product_~retValue_acc~13 := 1;valid_product_#res := valid_product_~retValue_acc~13; 683#L1023 main_#t~ret7 := valid_product_#res;main_~tmp~0 := main_#t~ret7;havoc main_#t~ret7; 684#L132 assume 0 != main_~tmp~0; 849#L105 havoc test_#t~nondet10, test_#t~nondet11, test_#t~nondet12, test_#t~nondet13, test_~splverifierCounter~0, test_~tmp~2, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~2;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 903#L165-1 [2021-07-06 20:32:07,747 INFO L793 eck$LassoCheckResult]: Loop: 903#L165-1 assume !false; 993#L196 assume test_~splverifierCounter~0 < 4; 991#L197 test_~tmp~2 := test_#t~nondet10;havoc test_#t~nondet10; 890#L205 assume !(0 != test_~tmp~2); 851#L205-1 test_~tmp___0~1 := test_#t~nondet11;havoc test_#t~nondet11; 950#L215 assume !(0 != test_~tmp___0~1); 948#L215-1 test_~tmp___2~0 := test_#t~nondet12;havoc test_#t~nondet12; 861#L225 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 862#L233-1 assume !(0 != ~pumpRunning~0); 718#L268 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret16, processEnvironment_~tmp~5;havoc processEnvironment_~tmp~5; 768#L352 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__methaneQuery_#t~ret15, processEnvironment__wrappee__methaneQuery_~tmp~4;havoc processEnvironment__wrappee__methaneQuery_~tmp~4; 853#L326-1 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret14, processEnvironment__wrappee__highWaterSensor_~tmp~3;havoc processEnvironment__wrappee__highWaterSensor_~tmp~3; 896#L300-3 assume !(0 == ~pumpRunning~0); 734#L275 havoc __utac_acc__Specification4_spec__1_#t~ret8, __utac_acc__Specification4_spec__1_#t~ret9, __utac_acc__Specification4_spec__1_~tmp~1, __utac_acc__Specification4_spec__1_~tmp___0~0;havoc __utac_acc__Specification4_spec__1_~tmp~1;havoc __utac_acc__Specification4_spec__1_~tmp___0~0;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~9;havoc getWaterLevel_~retValue_acc~9;getWaterLevel_~retValue_acc~9 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~9; 998#L965 __utac_acc__Specification4_spec__1_#t~ret8 := getWaterLevel_#res;__utac_acc__Specification4_spec__1_~tmp~1 := __utac_acc__Specification4_spec__1_#t~ret8;havoc __utac_acc__Specification4_spec__1_#t~ret8; 996#L165 assume !(0 == __utac_acc__Specification4_spec__1_~tmp~1); 903#L165-1 [2021-07-06 20:32:07,747 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-06 20:32:07,747 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 2 times [2021-07-06 20:32:07,747 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-06 20:32:07,748 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1910944031] [2021-07-06 20:32:07,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-06 20:32:07,748 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-07-06 20:32:07,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-06 20:32:07,773 INFO L224 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-06 20:32:07,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-06 20:32:07,823 INFO L224 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-06 20:32:07,843 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-07-06 20:32:07,844 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-06 20:32:07,844 INFO L82 PathProgramCache]: Analyzing trace with hash 1220566465, now seen corresponding path program 1 times [2021-07-06 20:32:07,844 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-06 20:32:07,844 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1920899415] [2021-07-06 20:32:07,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-06 20:32:07,844 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-07-06 20:32:07,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-06 20:32:07,852 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 20:32:07,853 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-06 20:32:07,853 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 20:32:07,854 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-06 20:32:07,856 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 20:32:07,857 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-06 20:32:07,860 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 20:32:07,861 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-06 20:32:07,861 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1920899415] [2021-07-06 20:32:07,861 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1920899415] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-06 20:32:07,862 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-06 20:32:07,862 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-07-06 20:32:07,862 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [536267135] [2021-07-06 20:32:07,862 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-07-06 20:32:07,862 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-06 20:32:07,863 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-07-06 20:32:07,863 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-07-06 20:32:07,863 INFO L87 Difference]: Start difference. First operand 426 states and 630 transitions. cyclomatic complexity: 207 Second operand has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 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 20:32:07,947 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-06 20:32:07,947 INFO L93 Difference]: Finished difference Result 419 states and 586 transitions. [2021-07-06 20:32:07,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-06 20:32:07,947 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 419 states and 586 transitions. [2021-07-06 20:32:07,950 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 291 [2021-07-06 20:32:07,952 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 419 states to 419 states and 586 transitions. [2021-07-06 20:32:07,953 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 419 [2021-07-06 20:32:07,953 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 419 [2021-07-06 20:32:07,953 INFO L73 IsDeterministic]: Start isDeterministic. Operand 419 states and 586 transitions. [2021-07-06 20:32:07,953 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-07-06 20:32:07,954 INFO L681 BuchiCegarLoop]: Abstraction has 419 states and 586 transitions. [2021-07-06 20:32:07,954 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 419 states and 586 transitions. [2021-07-06 20:32:07,970 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 419 to 419. [2021-07-06 20:32:07,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 419 states, 419 states have (on average 1.3985680190930787) internal successors, (586), 418 states have internal predecessors, (586), 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 20:32:07,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 419 states to 419 states and 586 transitions. [2021-07-06 20:32:07,972 INFO L704 BuchiCegarLoop]: Abstraction has 419 states and 586 transitions. [2021-07-06 20:32:07,972 INFO L587 BuchiCegarLoop]: Abstraction has 419 states and 586 transitions. [2021-07-06 20:32:07,972 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-07-06 20:32:07,972 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 419 states and 586 transitions. [2021-07-06 20:32:07,974 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 291 [2021-07-06 20:32:07,974 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-07-06 20:32:07,974 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-07-06 20:32:07,975 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-07-06 20:32:07,975 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-06 20:32:07,975 INFO L791 eck$LassoCheckResult]: Stem: 1717#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~string20.base, #t~string20.offset := #Ultimate.allocOnStack(13);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string22.base, #t~string22.offset, 1);call write~init~int(110, #t~string22.base, 1 + #t~string22.offset, 1);call write~init~int(0, #t~string22.base, 2 + #t~string22.offset, 1);call #t~string24.base, #t~string24.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string24.base, #t~string24.offset, 1);call write~init~int(102, #t~string24.base, 1 + #t~string24.offset, 1);call write~init~int(102, #t~string24.base, 2 + #t~string24.offset, 1);call write~init~int(0, #t~string24.base, 3 + #t~string24.offset, 1);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string26.base, #t~string26.offset, 1);call write~init~int(80, #t~string26.base, 1 + #t~string26.offset, 1);call write~init~int(117, #t~string26.base, 2 + #t~string26.offset, 1);call write~init~int(109, #t~string26.base, 3 + #t~string26.offset, 1);call write~init~int(112, #t~string26.base, 4 + #t~string26.offset, 1);call write~init~int(58, #t~string26.base, 5 + #t~string26.offset, 1);call write~init~int(0, #t~string26.base, 6 + #t~string26.offset, 1);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string28.base, #t~string28.offset, 1);call write~init~int(110, #t~string28.base, 1 + #t~string28.offset, 1);call write~init~int(0, #t~string28.base, 2 + #t~string28.offset, 1);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string30.base, #t~string30.offset, 1);call write~init~int(102, #t~string30.base, 1 + #t~string30.offset, 1);call write~init~int(102, #t~string30.base, 2 + #t~string30.offset, 1);call write~init~int(0, #t~string30.base, 3 + #t~string30.offset, 1);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string32.base, #t~string32.offset, 1);call write~init~int(32, #t~string32.base, 1 + #t~string32.offset, 1);call write~init~int(0, #t~string32.base, 2 + #t~string32.offset, 1);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string34.base, #t~string34.offset, 1);call write~init~int(0, #t~string34.base, 1 + #t~string34.offset, 1);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(30);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(9);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(21);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(30);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(9);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(21);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(30);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(9);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(25);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(30);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(9);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(25);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(13);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string75.base, #t~string75.offset, 1);call write~init~int(77, #t~string75.base, 1 + #t~string75.offset, 1);call write~init~int(101, #t~string75.base, 2 + #t~string75.offset, 1);call write~init~int(116, #t~string75.base, 3 + #t~string75.offset, 1);call write~init~int(104, #t~string75.base, 4 + #t~string75.offset, 1);call write~init~int(58, #t~string75.base, 5 + #t~string75.offset, 1);call write~init~int(0, #t~string75.base, 6 + #t~string75.offset, 1);call #t~string77.base, #t~string77.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string77.base, #t~string77.offset, 1);call write~init~int(82, #t~string77.base, 1 + #t~string77.offset, 1);call write~init~int(73, #t~string77.base, 2 + #t~string77.offset, 1);call write~init~int(84, #t~string77.base, 3 + #t~string77.offset, 1);call write~init~int(0, #t~string77.base, 4 + #t~string77.offset, 1);call #t~string79.base, #t~string79.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string79.base, #t~string79.offset, 1);call write~init~int(75, #t~string79.base, 1 + #t~string79.offset, 1);call write~init~int(0, #t~string79.base, 2 + #t~string79.offset, 1);call #t~string81.base, #t~string81.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string81.base, #t~string81.offset, 1);call write~init~int(0, #t~string81.base, 1 + #t~string81.offset, 1);~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 1538#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; 1539#L1015 havoc valid_product_#res;havoc valid_product_~retValue_acc~13;havoc valid_product_~retValue_acc~13;valid_product_~retValue_acc~13 := 1;valid_product_#res := valid_product_~retValue_acc~13; 1536#L1023 main_#t~ret7 := valid_product_#res;main_~tmp~0 := main_#t~ret7;havoc main_#t~ret7; 1537#L132 assume 0 != main_~tmp~0; 1661#L105 havoc test_#t~nondet10, test_#t~nondet11, test_#t~nondet12, test_#t~nondet13, test_~splverifierCounter~0, test_~tmp~2, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~2;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 1598#L165-1 [2021-07-06 20:32:07,975 INFO L793 eck$LassoCheckResult]: Loop: 1598#L165-1 assume !false; 1675#L196 assume test_~splverifierCounter~0 < 4; 1530#L197 test_~tmp~2 := test_#t~nondet10;havoc test_#t~nondet10; 1531#L205 assume !(0 != test_~tmp~2); 1606#L205-1 test_~tmp___0~1 := test_#t~nondet11;havoc test_#t~nondet11; 1607#L215 assume !(0 != test_~tmp___0~1); 1742#L215-1 test_~tmp___2~0 := test_#t~nondet12;havoc test_#t~nondet12; 1731#L225 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 1729#L233-1 assume !(0 != ~pumpRunning~0); 1642#L268 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret16, processEnvironment_~tmp~5;havoc processEnvironment_~tmp~5; 1643#L352 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__methaneQuery_#t~ret15, processEnvironment__wrappee__methaneQuery_~tmp~4;havoc processEnvironment__wrappee__methaneQuery_~tmp~4; 1792#L326-1 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret14, processEnvironment__wrappee__highWaterSensor_~tmp~3;havoc processEnvironment__wrappee__highWaterSensor_~tmp~3; 1791#L300-3 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret35, isHighWaterLevel_~retValue_acc~3, isHighWaterLevel_~tmp~7, isHighWaterLevel_~tmp___0~2;havoc isHighWaterLevel_~retValue_acc~3;havoc isHighWaterLevel_~tmp~7;havoc isHighWaterLevel_~tmp___0~2;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~10;havoc isHighWaterSensorDry_~retValue_acc~10; 1595#L973-3 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~10 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~10; 1596#L978-3 isHighWaterLevel_#t~ret35 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~7 := isHighWaterLevel_#t~ret35;havoc isHighWaterLevel_#t~ret35; 1788#L471-9 assume 0 != isHighWaterLevel_~tmp~7;isHighWaterLevel_~tmp___0~2 := 0; 1786#L471-11 isHighWaterLevel_~retValue_acc~3 := isHighWaterLevel_~tmp___0~2;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~3; 1785#L477-3 processEnvironment__wrappee__highWaterSensor_#t~ret14 := isHighWaterLevel_#res;processEnvironment__wrappee__highWaterSensor_~tmp~3 := processEnvironment__wrappee__highWaterSensor_#t~ret14;havoc processEnvironment__wrappee__highWaterSensor_#t~ret14; 1783#L304-3 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~3); 1619#L275 havoc __utac_acc__Specification4_spec__1_#t~ret8, __utac_acc__Specification4_spec__1_#t~ret9, __utac_acc__Specification4_spec__1_~tmp~1, __utac_acc__Specification4_spec__1_~tmp___0~0;havoc __utac_acc__Specification4_spec__1_~tmp~1;havoc __utac_acc__Specification4_spec__1_~tmp___0~0;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~9;havoc getWaterLevel_~retValue_acc~9;getWaterLevel_~retValue_acc~9 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~9; 1558#L965 __utac_acc__Specification4_spec__1_#t~ret8 := getWaterLevel_#res;__utac_acc__Specification4_spec__1_~tmp~1 := __utac_acc__Specification4_spec__1_#t~ret8;havoc __utac_acc__Specification4_spec__1_#t~ret8; 1559#L165 assume !(0 == __utac_acc__Specification4_spec__1_~tmp~1); 1598#L165-1 [2021-07-06 20:32:07,976 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-06 20:32:07,976 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 3 times [2021-07-06 20:32:07,976 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-06 20:32:07,976 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [366485643] [2021-07-06 20:32:07,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-06 20:32:07,977 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-07-06 20:32:08,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-06 20:32:08,021 INFO L224 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-06 20:32:08,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-06 20:32:08,047 INFO L224 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-06 20:32:08,053 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-07-06 20:32:08,055 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-06 20:32:08,055 INFO L82 PathProgramCache]: Analyzing trace with hash -231328531, now seen corresponding path program 1 times [2021-07-06 20:32:08,055 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-06 20:32:08,055 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [419142727] [2021-07-06 20:32:08,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-06 20:32:08,055 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-07-06 20:32:08,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-06 20:32:08,059 INFO L224 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-06 20:32:08,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-06 20:32:08,062 INFO L224 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-06 20:32:08,065 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-07-06 20:32:08,065 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-06 20:32:08,065 INFO L82 PathProgramCache]: Analyzing trace with hash 1021976595, now seen corresponding path program 1 times [2021-07-06 20:32:08,066 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-06 20:32:08,066 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [800444388] [2021-07-06 20:32:08,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-06 20:32:08,067 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-07-06 20:32:08,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-06 20:32:08,103 INFO L224 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-06 20:32:08,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-06 20:32:08,123 INFO L224 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-06 20:32:08,145 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-07-06 20:32:08,222 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 20:32:08,224 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-07-06 20:32:47,706 WARN L205 SmtUtils]: Spent 39.44 s on a formula simplification. DAG size of input: 491 DAG size of output: 433 [2021-07-06 20:32:47,725 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 20:32:47,742 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2127 [2021-07-06 20:33:07,650 WARN L205 SmtUtils]: Spent 19.91 s on a formula simplification that was a NOOP. DAG size: 433 [2021-07-06 20:33:07,738 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 06.07 08:33:07 BoogieIcfgContainer [2021-07-06 20:33:07,738 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-07-06 20:33:07,739 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-07-06 20:33:07,739 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-07-06 20:33:07,739 INFO L275 PluginConnector]: Witness Printer initialized [2021-07-06 20:33:07,739 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.07 08:32:07" (3/4) ... [2021-07-06 20:33:07,741 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2021-07-06 20:33:07,776 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-07-06 20:33:07,776 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-07-06 20:33:07,777 INFO L168 Benchmark]: Toolchain (without parser) took 62045.60 ms. Allocated memory was 62.9 MB in the beginning and 115.3 MB in the end (delta: 52.4 MB). Free memory was 42.3 MB in the beginning and 65.8 MB in the end (delta: -23.5 MB). Peak memory consumption was 28.1 MB. Max. memory is 16.1 GB. [2021-07-06 20:33:07,777 INFO L168 Benchmark]: CDTParser took 0.10 ms. Allocated memory is still 62.9 MB. Free memory was 45.0 MB in the beginning and 44.9 MB in the end (delta: 50.8 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-07-06 20:33:07,777 INFO L168 Benchmark]: CACSL2BoogieTranslator took 410.11 ms. Allocated memory is still 62.9 MB. Free memory was 42.2 MB in the beginning and 34.4 MB in the end (delta: 7.8 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-07-06 20:33:07,778 INFO L168 Benchmark]: Boogie Procedure Inliner took 61.13 ms. Allocated memory is still 62.9 MB. Free memory was 34.2 MB in the beginning and 28.9 MB in the end (delta: 5.3 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-07-06 20:33:07,778 INFO L168 Benchmark]: Boogie Preprocessor took 63.22 ms. Allocated memory was 62.9 MB in the beginning and 75.5 MB in the end (delta: 12.6 MB). Free memory was 28.9 MB in the beginning and 54.1 MB in the end (delta: -25.3 MB). Peak memory consumption was 4.3 MB. Max. memory is 16.1 GB. [2021-07-06 20:33:07,778 INFO L168 Benchmark]: RCFGBuilder took 848.02 ms. Allocated memory is still 75.5 MB. Free memory was 54.1 MB in the beginning and 34.4 MB in the end (delta: 19.8 MB). Peak memory consumption was 26.6 MB. Max. memory is 16.1 GB. [2021-07-06 20:33:07,778 INFO L168 Benchmark]: BuchiAutomizer took 60619.90 ms. Allocated memory was 75.5 MB in the beginning and 115.3 MB in the end (delta: 39.8 MB). Free memory was 33.9 MB in the beginning and 67.9 MB in the end (delta: -34.0 MB). Peak memory consumption was 57.1 MB. Max. memory is 16.1 GB. [2021-07-06 20:33:07,779 INFO L168 Benchmark]: Witness Printer took 37.85 ms. Allocated memory is still 115.3 MB. Free memory was 67.9 MB in the beginning and 65.8 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-07-06 20:33:07,780 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 was 45.0 MB in the beginning and 44.9 MB in the end (delta: 50.8 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 410.11 ms. Allocated memory is still 62.9 MB. Free memory was 42.2 MB in the beginning and 34.4 MB in the end (delta: 7.8 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 61.13 ms. Allocated memory is still 62.9 MB. Free memory was 34.2 MB in the beginning and 28.9 MB in the end (delta: 5.3 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 63.22 ms. Allocated memory was 62.9 MB in the beginning and 75.5 MB in the end (delta: 12.6 MB). Free memory was 28.9 MB in the beginning and 54.1 MB in the end (delta: -25.3 MB). Peak memory consumption was 4.3 MB. Max. memory is 16.1 GB. * RCFGBuilder took 848.02 ms. Allocated memory is still 75.5 MB. Free memory was 54.1 MB in the beginning and 34.4 MB in the end (delta: 19.8 MB). Peak memory consumption was 26.6 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 60619.90 ms. Allocated memory was 75.5 MB in the beginning and 115.3 MB in the end (delta: 39.8 MB). Free memory was 33.9 MB in the beginning and 67.9 MB in the end (delta: -34.0 MB). Peak memory consumption was 57.1 MB. Max. memory is 16.1 GB. * Witness Printer took 37.85 ms. Allocated memory is still 115.3 MB. Free memory was 67.9 MB in the beginning and 65.8 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 2 terminating modules (2 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.2 modules have a trivial ranking function, the largest among these consists of 3 locations. The remainder module has 419 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 60.5s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 60.2s. Construction of modules took 0.0s. Büchi inclusion checks took 0.0s. Highest rank in rank-based complementation 0. Minimization of det autom 2. Minimization of nondet autom 0. Automata minimization 41.1ms AutomataMinimizationTime, 2 MinimizatonAttempts, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 426 states and ocurred in iteration 1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 553 SDtfs, 496 SDslu, 392 SDs, 0 SdLazy, 53 SolverSat, 38 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 74.4ms Time LassoAnalysisResults: nont1 unkn0 SFLI2 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: 195]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=11383} State at position 1 is {NULL=0, NULL=0, NULL=11394, NULL=11383, NULL=0, NULL=11403, NULL=0, NULL=11389, retValue_acc=1, methaneLevelCritical=0, tmp=0, retValue_acc=0, NULL=0, NULL=11406, NULL=0, tmp___1=0, NULL=0, NULL=11388, cleanupTimeShifts=4, waterLevel=1, NULL=0, NULL=11397, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@51c238d8=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7a499989=0, NULL=11390, \result=1, head=0, pumpRunning=0, tmp=1, NULL=11395, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@189fbd22=0, NULL=0, \result=1, NULL=0, tmp=1, NULL=0, NULL=11400, NULL=0, retValue_acc=1, tmp=1, NULL=0, NULL=11393, tmp___0=0, NULL=11409, NULL=11404, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5ff2e0ae=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@43b4e61f=0, NULL=11391, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3b3eefb5=70, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6a905908=0, head=0, NULL=0, NULL=0, tmp=0, NULL=11384, NULL=11396, tmp=0, retValue_acc=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@46d5128f=0, NULL=11405, tmp___0=0, NULL=0, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@287728bc=0, NULL=0, tmp___0=0, NULL=11385, tmp=0, NULL=11411, NULL=0, systemActive=1, NULL=11410, \result=1, NULL=0, \result=0, NULL=0, NULL=0, NULL=0, NULL=0, NULL=11392, \result=0, NULL=11401, NULL=11398, NULL=11386, NULL=11402, NULL=11387, tmp___2=70, retValue_acc=1, splverifierCounter=0, NULL=0, NULL=0, NULL=11408, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5f747864=0, NULL=11399, NULL=0, NULL=0, NULL=0, NULL=11407, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4fa96a50=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; [L261] int pumpRunning = 0; [L262] int systemActive = 1; [L693] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L890] int waterLevel = 1; [L891] int methaneLevelCritical = 0; [L123] int retValue_acc ; [L124] int tmp ; [L1019] int retValue_acc ; [L1022] retValue_acc = 1 [L1023] return (retValue_acc); [L130] tmp = valid_product() [L132] COND TRUE \read(tmp) [L186] int splverifierCounter ; [L187] int tmp ; [L188] int tmp___0 ; [L189] int tmp___1 ; [L190] int tmp___2 ; [L193] splverifierCounter = 0 Loop: [L195] COND TRUE 1 [L197] COND TRUE splverifierCounter < 4 [L203] tmp = __VERIFIER_nondet_int() [L205] COND FALSE !(\read(tmp)) [L213] tmp___0 = __VERIFIER_nondet_int() [L215] COND FALSE !(\read(tmp___0)) [L223] tmp___2 = __VERIFIER_nondet_int() [L225] COND TRUE \read(tmp___2) [L519] systemActive = 1 [L268] COND FALSE !(\read(pumpRunning)) [L275] COND TRUE \read(systemActive) [L349] int tmp ; [L352] COND FALSE !(\read(pumpRunning)) [L323] int tmp ; [L326] COND FALSE !(\read(pumpRunning)) [L297] int tmp ; [L300] COND TRUE ! pumpRunning [L463] int retValue_acc ; [L464] int tmp ; [L465] int tmp___0 ; [L970] int retValue_acc ; [L973] COND TRUE waterLevel < 2 [L974] retValue_acc = 1 [L975] return (retValue_acc); [L469] tmp = isHighWaterSensorDry() [L471] COND TRUE \read(tmp) [L472] tmp___0 = 0 [L476] retValue_acc = tmp___0 [L477] return (retValue_acc); [L302] tmp = isHighWaterLevel() [L304] COND FALSE !(\read(tmp)) [L158] int tmp ; [L159] int tmp___0 ; [L961] int retValue_acc ; [L964] retValue_acc = waterLevel [L965] return (retValue_acc); [L163] tmp = getWaterLevel() [L165] COND FALSE !(tmp == 0) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2021-07-06 20:33:07,814 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0 Received shutdown request...