./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/minepump_spec3_product48.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version c3fed411 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_spec3_product48.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 baaf7bc14db82105b5843c6fd2fd917eb756a5c6e86ff33e83c3b3f08cca23ae --- Real Ultimate output --- This is Ultimate 0.2.2-tmp.no-commuhash-c3fed41 [2021-12-19 19:11:15,688 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-19 19:11:15,690 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-19 19:11:15,765 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-19 19:11:15,766 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-19 19:11:15,768 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-19 19:11:15,770 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-19 19:11:15,772 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-19 19:11:15,773 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-19 19:11:15,775 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-19 19:11:15,775 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-19 19:11:15,778 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-19 19:11:15,778 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-19 19:11:15,781 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-19 19:11:15,782 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-19 19:11:15,783 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-19 19:11:15,786 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-19 19:11:15,787 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-19 19:11:15,788 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-19 19:11:15,792 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-19 19:11:15,795 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-19 19:11:15,796 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-19 19:11:15,797 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-19 19:11:15,798 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-19 19:11:15,799 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-19 19:11:15,800 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-19 19:11:15,800 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-19 19:11:15,803 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-19 19:11:15,804 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-19 19:11:15,804 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-19 19:11:15,805 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-19 19:11:15,805 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-19 19:11:15,806 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-19 19:11:15,807 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-19 19:11:15,808 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-19 19:11:15,808 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-19 19:11:15,809 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-19 19:11:15,809 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-19 19:11:15,809 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-19 19:11:15,810 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-19 19:11:15,810 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-19 19:11:15,811 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-12-19 19:11:15,839 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-19 19:11:15,839 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-19 19:11:15,839 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-19 19:11:15,840 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-19 19:11:15,840 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-19 19:11:15,841 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-19 19:11:15,841 INFO L138 SettingsManager]: * Use SBE=true [2021-12-19 19:11:15,841 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-12-19 19:11:15,841 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-12-19 19:11:15,841 INFO L138 SettingsManager]: * Use old map elimination=false [2021-12-19 19:11:15,842 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-12-19 19:11:15,842 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-12-19 19:11:15,842 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-12-19 19:11:15,842 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-19 19:11:15,843 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-19 19:11:15,843 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-12-19 19:11:15,843 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-19 19:11:15,843 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-19 19:11:15,843 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-19 19:11:15,843 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-12-19 19:11:15,843 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-12-19 19:11:15,844 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-12-19 19:11:15,844 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-19 19:11:15,844 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-19 19:11:15,845 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-12-19 19:11:15,845 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-19 19:11:15,845 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-12-19 19:11:15,845 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-19 19:11:15,846 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-19 19:11:15,846 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-19 19:11:15,846 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-19 19:11:15,846 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-19 19:11:15,847 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-12-19 19:11:15,847 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> baaf7bc14db82105b5843c6fd2fd917eb756a5c6e86ff33e83c3b3f08cca23ae [2021-12-19 19:11:16,008 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-19 19:11:16,021 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-19 19:11:16,023 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-19 19:11:16,024 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-19 19:11:16,024 INFO L275 PluginConnector]: CDTParser initialized [2021-12-19 19:11:16,025 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec3_product48.cil.c [2021-12-19 19:11:16,062 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fd55e14cb/8e7fefd14a1641e984fdabba1b0dd852/FLAG9c4d51086 [2021-12-19 19:11:16,468 INFO L306 CDTParser]: Found 1 translation units. [2021-12-19 19:11:16,470 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec3_product48.cil.c [2021-12-19 19:11:16,481 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fd55e14cb/8e7fefd14a1641e984fdabba1b0dd852/FLAG9c4d51086 [2021-12-19 19:11:16,489 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fd55e14cb/8e7fefd14a1641e984fdabba1b0dd852 [2021-12-19 19:11:16,491 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-19 19:11:16,501 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-19 19:11:16,502 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-19 19:11:16,502 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-19 19:11:16,504 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-19 19:11:16,505 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.12 07:11:16" (1/1) ... [2021-12-19 19:11:16,505 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6186e98d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 07:11:16, skipping insertion in model container [2021-12-19 19:11:16,505 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.12 07:11:16" (1/1) ... [2021-12-19 19:11:16,510 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-19 19:11:16,537 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-19 19:11:16,643 WARN L230 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_spec3_product48.cil.c[1605,1618] [2021-12-19 19:11:16,768 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-19 19:11:16,776 INFO L203 MainTranslator]: Completed pre-run [2021-12-19 19:11:16,789 WARN L230 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_spec3_product48.cil.c[1605,1618] [2021-12-19 19:11:16,833 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-19 19:11:16,851 INFO L208 MainTranslator]: Completed translation [2021-12-19 19:11:16,852 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 07:11:16 WrapperNode [2021-12-19 19:11:16,852 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-19 19:11:16,853 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-19 19:11:16,853 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-19 19:11:16,853 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-19 19:11:16,858 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 07:11:16" (1/1) ... [2021-12-19 19:11:16,868 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 07:11:16" (1/1) ... [2021-12-19 19:11:16,923 INFO L137 Inliner]: procedures = 56, calls = 159, calls flagged for inlining = 56, calls inlined = 101, statements flattened = 750 [2021-12-19 19:11:16,924 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-19 19:11:16,924 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-19 19:11:16,924 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-19 19:11:16,925 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-19 19:11:16,930 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 07:11:16" (1/1) ... [2021-12-19 19:11:16,931 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 07:11:16" (1/1) ... [2021-12-19 19:11:16,940 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 07:11:16" (1/1) ... [2021-12-19 19:11:16,941 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 07:11:16" (1/1) ... [2021-12-19 19:11:16,963 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 07:11:16" (1/1) ... [2021-12-19 19:11:16,968 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 07:11:16" (1/1) ... [2021-12-19 19:11:16,970 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 07:11:16" (1/1) ... [2021-12-19 19:11:16,973 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-19 19:11:16,976 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-19 19:11:16,976 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-19 19:11:16,976 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-19 19:11:16,977 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 07:11:16" (1/1) ... [2021-12-19 19:11:16,982 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-19 19:11:16,994 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 19:11:17,004 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) [2021-12-19 19:11:17,012 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 [2021-12-19 19:11:17,032 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-19 19:11:17,032 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-19 19:11:17,033 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-19 19:11:17,033 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-19 19:11:17,103 INFO L236 CfgBuilder]: Building ICFG [2021-12-19 19:11:17,104 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-19 19:11:17,475 INFO L277 CfgBuilder]: Performing block encoding [2021-12-19 19:11:17,480 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-19 19:11:17,484 INFO L301 CfgBuilder]: Removed 2 assume(true) statements. [2021-12-19 19:11:17,485 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.12 07:11:17 BoogieIcfgContainer [2021-12-19 19:11:17,486 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-19 19:11:17,486 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-12-19 19:11:17,486 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-12-19 19:11:17,489 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-12-19 19:11:17,489 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-19 19:11:17,490 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 19.12 07:11:16" (1/3) ... [2021-12-19 19:11:17,490 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3996f18 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 19.12 07:11:17, skipping insertion in model container [2021-12-19 19:11:17,490 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-19 19:11:17,490 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 07:11:16" (2/3) ... [2021-12-19 19:11:17,491 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3996f18 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 19.12 07:11:17, skipping insertion in model container [2021-12-19 19:11:17,491 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-19 19:11:17,491 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.12 07:11:17" (3/3) ... [2021-12-19 19:11:17,492 INFO L388 chiAutomizerObserver]: Analyzing ICFG minepump_spec3_product48.cil.c [2021-12-19 19:11:17,519 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-12-19 19:11:17,519 INFO L360 BuchiCegarLoop]: Hoare is false [2021-12-19 19:11:17,519 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-12-19 19:11:17,519 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-12-19 19:11:17,519 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-12-19 19:11:17,519 INFO L364 BuchiCegarLoop]: Difference is false [2021-12-19 19:11:17,520 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-12-19 19:11:17,520 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-12-19 19:11:17,532 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 191 states, 190 states have (on average 1.3578947368421053) internal successors, (258), 190 states have internal predecessors, (258), 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) [2021-12-19 19:11:17,550 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 125 [2021-12-19 19:11:17,551 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-19 19:11:17,551 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-19 19:11:17,556 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-12-19 19:11:17,556 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-19 19:11:17,557 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-12-19 19:11:17,559 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 191 states, 190 states have (on average 1.3578947368421053) internal successors, (258), 190 states have internal predecessors, (258), 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) [2021-12-19 19:11:17,565 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 125 [2021-12-19 19:11:17,565 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-19 19:11:17,565 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-19 19:11:17,566 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-12-19 19:11:17,566 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-19 19:11:17,570 INFO L791 eck$LassoCheckResult]: Stem: 173#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(13, 4);call #Ultimate.allocInit(7, 5);call write~init~int(44, 5, 0, 1);call write~init~int(77, 5, 1, 1);call write~init~int(101, 5, 2, 1);call write~init~int(116, 5, 3, 1);call write~init~int(104, 5, 4, 1);call write~init~int(58, 5, 5, 1);call write~init~int(0, 5, 6, 1);call #Ultimate.allocInit(5, 6);call write~init~int(67, 6, 0, 1);call write~init~int(82, 6, 1, 1);call write~init~int(73, 6, 2, 1);call write~init~int(84, 6, 3, 1);call write~init~int(0, 6, 4, 1);call #Ultimate.allocInit(3, 7);call write~init~int(79, 7, 0, 1);call write~init~int(75, 7, 1, 1);call write~init~int(0, 7, 2, 1);call #Ultimate.allocInit(2, 8);call write~init~int(41, 8, 0, 1);call write~init~int(0, 8, 1, 1);call #Ultimate.allocInit(13, 9);call #Ultimate.allocInit(3, 10);call write~init~int(79, 10, 0, 1);call write~init~int(110, 10, 1, 1);call write~init~int(0, 10, 2, 1);call #Ultimate.allocInit(4, 11);call write~init~int(79, 11, 0, 1);call write~init~int(102, 11, 1, 1);call write~init~int(102, 11, 2, 1);call write~init~int(0, 11, 3, 1);call #Ultimate.allocInit(7, 12);call write~init~int(44, 12, 0, 1);call write~init~int(80, 12, 1, 1);call write~init~int(117, 12, 2, 1);call write~init~int(109, 12, 3, 1);call write~init~int(112, 12, 4, 1);call write~init~int(58, 12, 5, 1);call write~init~int(0, 12, 6, 1);call #Ultimate.allocInit(3, 13);call write~init~int(79, 13, 0, 1);call write~init~int(110, 13, 1, 1);call write~init~int(0, 13, 2, 1);call #Ultimate.allocInit(4, 14);call write~init~int(79, 14, 0, 1);call write~init~int(102, 14, 1, 1);call write~init~int(102, 14, 2, 1);call write~init~int(0, 14, 3, 1);call #Ultimate.allocInit(3, 15);call write~init~int(41, 15, 0, 1);call write~init~int(32, 15, 1, 1);call write~init~int(0, 15, 2, 1);call #Ultimate.allocInit(2, 16);call write~init~int(10, 16, 0, 1);call write~init~int(0, 16, 1, 1);call #Ultimate.allocInit(30, 17);call #Ultimate.allocInit(9, 18);call #Ultimate.allocInit(21, 19);call #Ultimate.allocInit(30, 20);call #Ultimate.allocInit(9, 21);call #Ultimate.allocInit(21, 22);call #Ultimate.allocInit(30, 23);call #Ultimate.allocInit(9, 24);call #Ultimate.allocInit(25, 25);call #Ultimate.allocInit(30, 26);call #Ultimate.allocInit(9, 27);call #Ultimate.allocInit(25, 28);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0; 64#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret26#1, main_~retValue_acc~8#1, main_~tmp~5#1;havoc main_~retValue_acc~8#1;havoc main_~tmp~5#1;assume { :begin_inline_select_helpers } true; 172#L84true assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 116#L77true assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~1#1;havoc valid_product_~retValue_acc~1#1;valid_product_~retValue_acc~1#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~1#1; 165#L92true main_#t~ret26#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~5#1 := main_#t~ret26#1;havoc main_#t~ret26#1; 47#L540true assume 0 != main_~tmp~5#1;assume { :begin_inline_setup } true; 128#L516true assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet27#1, test_#t~nondet28#1, test_#t~nondet29#1, test_#t~nondet30#1, test_~splverifierCounter~0#1, test_~tmp~6#1, test_~tmp___0~2#1, test_~tmp___1~1#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~6#1;havoc test_~tmp___0~2#1;havoc test_~tmp___1~1#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 24#L564-2true [2021-12-19 19:11:17,570 INFO L793 eck$LassoCheckResult]: Loop: 24#L564-2true assume !false; 32#L565true assume test_~splverifierCounter~0#1 < 4; 160#L566true test_~tmp~6#1 := test_#t~nondet27#1;havoc test_#t~nondet27#1; 79#L574true assume !(0 != test_~tmp~6#1); 89#L574-2true test_~tmp___0~2#1 := test_#t~nondet28#1;havoc test_#t~nondet28#1; 88#L584true assume !(0 != test_~tmp___0~2#1); 182#L584-2true test_~tmp___2~0#1 := test_#t~nondet29#1;havoc test_#t~nondet29#1; 147#L594true assume !(0 != test_~tmp___2~0#1);test_~tmp___1~1#1 := test_#t~nondet30#1;havoc test_#t~nondet30#1; 18#L602true assume !(0 != test_~tmp___1~1#1); 87#L602-2true assume { :begin_inline_timeShift } true; 104#L246true assume !(0 != ~pumpRunning~0); 25#L246-2true assume !(0 != ~systemActive~0); 42#L253-1true assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret5#1, __utac_acc__Specification3_spec__1_#t~ret6#1, __utac_acc__Specification3_spec__1_#t~ret7#1, __utac_acc__Specification3_spec__1_~tmp~0#1, __utac_acc__Specification3_spec__1_~tmp___0~0#1, __utac_acc__Specification3_spec__1_~tmp___1~0#1;havoc __utac_acc__Specification3_spec__1_~tmp~0#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~0#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~0#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~2#1;havoc isMethaneLevelCritical_~retValue_acc~2#1;isMethaneLevelCritical_~retValue_acc~2#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~2#1; 15#L182-3true __utac_acc__Specification3_spec__1_#t~ret5#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~0#1 := __utac_acc__Specification3_spec__1_#t~ret5#1;havoc __utac_acc__Specification3_spec__1_#t~ret5#1; 162#L109true assume 0 != __utac_acc__Specification3_spec__1_~tmp~0#1; 98#L115-1true assume { :end_inline___utac_acc__Specification3_spec__1 } true; 179#L263true assume { :end_inline_timeShift } true; 24#L564-2true [2021-12-19 19:11:17,574 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-19 19:11:17,574 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 1 times [2021-12-19 19:11:17,580 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-19 19:11:17,580 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [110929117] [2021-12-19 19:11:17,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 19:11:17,581 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-19 19:11:17,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-19 19:11:17,666 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-19 19:11:17,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-19 19:11:17,718 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-19 19:11:17,722 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-19 19:11:17,722 INFO L85 PathProgramCache]: Analyzing trace with hash -399552479, now seen corresponding path program 1 times [2021-12-19 19:11:17,723 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-19 19:11:17,723 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1047453220] [2021-12-19 19:11:17,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 19:11:17,724 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-19 19:11:17,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-19 19:11:17,747 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-19 19:11:17,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-19 19:11:17,754 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-19 19:11:17,757 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-19 19:11:17,758 INFO L85 PathProgramCache]: Analyzing trace with hash -1331234083, now seen corresponding path program 1 times [2021-12-19 19:11:17,758 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-19 19:11:17,758 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [457608722] [2021-12-19 19:11:17,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 19:11:17,758 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-19 19:11:17,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-19 19:11:17,872 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-19 19:11:17,872 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-19 19:11:17,873 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [457608722] [2021-12-19 19:11:17,873 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [457608722] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-19 19:11:17,873 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-19 19:11:17,873 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-19 19:11:17,874 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2038892366] [2021-12-19 19:11:17,875 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-19 19:11:17,999 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-19 19:11:18,024 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-19 19:11:18,025 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-12-19 19:11:18,027 INFO L87 Difference]: Start difference. First operand has 191 states, 190 states have (on average 1.3578947368421053) internal successors, (258), 190 states have internal predecessors, (258), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 6 states, 6 states have (on average 4.0) internal successors, (24), 5 states have internal predecessors, (24), 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) [2021-12-19 19:11:18,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-19 19:11:18,208 INFO L93 Difference]: Finished difference Result 618 states and 809 transitions. [2021-12-19 19:11:18,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-19 19:11:18,212 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 618 states and 809 transitions. [2021-12-19 19:11:18,232 INFO L131 ngComponentsAnalysis]: Automaton has 6 accepting balls. 404 [2021-12-19 19:11:18,238 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 618 states to 578 states and 769 transitions. [2021-12-19 19:11:18,238 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 578 [2021-12-19 19:11:18,243 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 578 [2021-12-19 19:11:18,251 INFO L73 IsDeterministic]: Start isDeterministic. Operand 578 states and 769 transitions. [2021-12-19 19:11:18,253 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-19 19:11:18,253 INFO L681 BuchiCegarLoop]: Abstraction has 578 states and 769 transitions. [2021-12-19 19:11:18,265 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 578 states and 769 transitions. [2021-12-19 19:11:18,291 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 578 to 236. [2021-12-19 19:11:18,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 236 states, 236 states have (on average 1.3305084745762712) internal successors, (314), 235 states have internal predecessors, (314), 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) [2021-12-19 19:11:18,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 236 states to 236 states and 314 transitions. [2021-12-19 19:11:18,294 INFO L704 BuchiCegarLoop]: Abstraction has 236 states and 314 transitions. [2021-12-19 19:11:18,294 INFO L587 BuchiCegarLoop]: Abstraction has 236 states and 314 transitions. [2021-12-19 19:11:18,294 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-12-19 19:11:18,294 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 236 states and 314 transitions. [2021-12-19 19:11:18,297 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 165 [2021-12-19 19:11:18,297 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-19 19:11:18,297 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-19 19:11:18,299 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-12-19 19:11:18,299 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] [2021-12-19 19:11:18,299 INFO L791 eck$LassoCheckResult]: Stem: 1002#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(13, 4);call #Ultimate.allocInit(7, 5);call write~init~int(44, 5, 0, 1);call write~init~int(77, 5, 1, 1);call write~init~int(101, 5, 2, 1);call write~init~int(116, 5, 3, 1);call write~init~int(104, 5, 4, 1);call write~init~int(58, 5, 5, 1);call write~init~int(0, 5, 6, 1);call #Ultimate.allocInit(5, 6);call write~init~int(67, 6, 0, 1);call write~init~int(82, 6, 1, 1);call write~init~int(73, 6, 2, 1);call write~init~int(84, 6, 3, 1);call write~init~int(0, 6, 4, 1);call #Ultimate.allocInit(3, 7);call write~init~int(79, 7, 0, 1);call write~init~int(75, 7, 1, 1);call write~init~int(0, 7, 2, 1);call #Ultimate.allocInit(2, 8);call write~init~int(41, 8, 0, 1);call write~init~int(0, 8, 1, 1);call #Ultimate.allocInit(13, 9);call #Ultimate.allocInit(3, 10);call write~init~int(79, 10, 0, 1);call write~init~int(110, 10, 1, 1);call write~init~int(0, 10, 2, 1);call #Ultimate.allocInit(4, 11);call write~init~int(79, 11, 0, 1);call write~init~int(102, 11, 1, 1);call write~init~int(102, 11, 2, 1);call write~init~int(0, 11, 3, 1);call #Ultimate.allocInit(7, 12);call write~init~int(44, 12, 0, 1);call write~init~int(80, 12, 1, 1);call write~init~int(117, 12, 2, 1);call write~init~int(109, 12, 3, 1);call write~init~int(112, 12, 4, 1);call write~init~int(58, 12, 5, 1);call write~init~int(0, 12, 6, 1);call #Ultimate.allocInit(3, 13);call write~init~int(79, 13, 0, 1);call write~init~int(110, 13, 1, 1);call write~init~int(0, 13, 2, 1);call #Ultimate.allocInit(4, 14);call write~init~int(79, 14, 0, 1);call write~init~int(102, 14, 1, 1);call write~init~int(102, 14, 2, 1);call write~init~int(0, 14, 3, 1);call #Ultimate.allocInit(3, 15);call write~init~int(41, 15, 0, 1);call write~init~int(32, 15, 1, 1);call write~init~int(0, 15, 2, 1);call #Ultimate.allocInit(2, 16);call write~init~int(10, 16, 0, 1);call write~init~int(0, 16, 1, 1);call #Ultimate.allocInit(30, 17);call #Ultimate.allocInit(9, 18);call #Ultimate.allocInit(21, 19);call #Ultimate.allocInit(30, 20);call #Ultimate.allocInit(9, 21);call #Ultimate.allocInit(21, 22);call #Ultimate.allocInit(30, 23);call #Ultimate.allocInit(9, 24);call #Ultimate.allocInit(25, 25);call #Ultimate.allocInit(30, 26);call #Ultimate.allocInit(9, 27);call #Ultimate.allocInit(25, 28);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0; 933#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret26#1, main_~retValue_acc~8#1, main_~tmp~5#1;havoc main_~retValue_acc~8#1;havoc main_~tmp~5#1;assume { :begin_inline_select_helpers } true; 934#L84 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 982#L77 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~1#1;havoc valid_product_~retValue_acc~1#1;valid_product_~retValue_acc~1#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~1#1; 983#L92 main_#t~ret26#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~5#1 := main_#t~ret26#1;havoc main_#t~ret26#1; 913#L540 assume 0 != main_~tmp~5#1;assume { :begin_inline_setup } true; 914#L516 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet27#1, test_#t~nondet28#1, test_#t~nondet29#1, test_#t~nondet30#1, test_~splverifierCounter~0#1, test_~tmp~6#1, test_~tmp___0~2#1, test_~tmp___1~1#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~6#1;havoc test_~tmp___0~2#1;havoc test_~tmp___1~1#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 870#L564-2 [2021-12-19 19:11:18,299 INFO L793 eck$LassoCheckResult]: Loop: 870#L564-2 assume !false; 871#L565 assume test_~splverifierCounter~0#1 < 4; 886#L566 test_~tmp~6#1 := test_#t~nondet27#1;havoc test_#t~nondet27#1; 947#L574 assume !(0 != test_~tmp~6#1); 945#L574-2 test_~tmp___0~2#1 := test_#t~nondet28#1;havoc test_#t~nondet28#1; 957#L584 assume !(0 != test_~tmp___0~2#1); 959#L584-2 test_~tmp___2~0#1 := test_#t~nondet29#1;havoc test_#t~nondet29#1; 995#L594 assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 937#L453 assume { :end_inline_startSystem } true; 859#L602-2 assume { :begin_inline_timeShift } true; 956#L246 assume !(0 != ~pumpRunning~0); 872#L246-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret14#1, processEnvironment_~tmp~2#1;havoc processEnvironment_~tmp~2#1; 873#L304 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__methaneQuery } true;havoc processEnvironment__wrappee__methaneQuery_#t~ret13#1, processEnvironment__wrappee__methaneQuery_~tmp~1#1;havoc processEnvironment__wrappee__methaneQuery_~tmp~1#1; 829#L278-2 assume !(0 == ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true; 830#L270-3 assume { :end_inline_processEnvironment__wrappee__base } true; 918#L278-3 assume { :end_inline_processEnvironment__wrappee__methaneQuery } true; 921#L304-1 assume { :end_inline_processEnvironment } true; 905#L253-1 assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret5#1, __utac_acc__Specification3_spec__1_#t~ret6#1, __utac_acc__Specification3_spec__1_#t~ret7#1, __utac_acc__Specification3_spec__1_~tmp~0#1, __utac_acc__Specification3_spec__1_~tmp___0~0#1, __utac_acc__Specification3_spec__1_~tmp___1~0#1;havoc __utac_acc__Specification3_spec__1_~tmp~0#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~0#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~0#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~2#1;havoc isMethaneLevelCritical_~retValue_acc~2#1;isMethaneLevelCritical_~retValue_acc~2#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~2#1; 851#L182-3 __utac_acc__Specification3_spec__1_#t~ret5#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~0#1 := __utac_acc__Specification3_spec__1_#t~ret5#1;havoc __utac_acc__Specification3_spec__1_#t~ret5#1; 852#L109 assume 0 != __utac_acc__Specification3_spec__1_~tmp~0#1; 963#L115-1 assume { :end_inline___utac_acc__Specification3_spec__1 } true; 971#L263 assume { :end_inline_timeShift } true; 870#L564-2 [2021-12-19 19:11:18,300 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-19 19:11:18,300 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 2 times [2021-12-19 19:11:18,300 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-19 19:11:18,300 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2024255638] [2021-12-19 19:11:18,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 19:11:18,301 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-19 19:11:18,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-19 19:11:18,321 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-19 19:11:18,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-19 19:11:18,341 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-19 19:11:18,341 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-19 19:11:18,341 INFO L85 PathProgramCache]: Analyzing trace with hash 1637029425, now seen corresponding path program 1 times [2021-12-19 19:11:18,341 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-19 19:11:18,342 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [535181044] [2021-12-19 19:11:18,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 19:11:18,342 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-19 19:11:18,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-19 19:11:18,360 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-19 19:11:18,361 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-19 19:11:18,361 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [535181044] [2021-12-19 19:11:18,362 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [535181044] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-19 19:11:18,362 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-19 19:11:18,362 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-19 19:11:18,363 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2135888183] [2021-12-19 19:11:18,363 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-19 19:11:18,363 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-12-19 19:11:18,363 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-19 19:11:18,363 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-19 19:11:18,364 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-19 19:11:18,364 INFO L87 Difference]: Start difference. First operand 236 states and 314 transitions. cyclomatic complexity: 81 Second operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 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) [2021-12-19 19:11:18,438 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-19 19:11:18,438 INFO L93 Difference]: Finished difference Result 299 states and 381 transitions. [2021-12-19 19:11:18,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-19 19:11:18,439 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 299 states and 381 transitions. [2021-12-19 19:11:18,440 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 213 [2021-12-19 19:11:18,442 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 299 states to 299 states and 381 transitions. [2021-12-19 19:11:18,442 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 299 [2021-12-19 19:11:18,442 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 299 [2021-12-19 19:11:18,442 INFO L73 IsDeterministic]: Start isDeterministic. Operand 299 states and 381 transitions. [2021-12-19 19:11:18,455 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-19 19:11:18,456 INFO L681 BuchiCegarLoop]: Abstraction has 299 states and 381 transitions. [2021-12-19 19:11:18,456 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 299 states and 381 transitions. [2021-12-19 19:11:18,459 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 299 to 299. [2021-12-19 19:11:18,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 299 states, 299 states have (on average 1.274247491638796) internal successors, (381), 298 states have internal predecessors, (381), 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) [2021-12-19 19:11:18,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 299 states to 299 states and 381 transitions. [2021-12-19 19:11:18,460 INFO L704 BuchiCegarLoop]: Abstraction has 299 states and 381 transitions. [2021-12-19 19:11:18,460 INFO L587 BuchiCegarLoop]: Abstraction has 299 states and 381 transitions. [2021-12-19 19:11:18,461 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-12-19 19:11:18,461 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 299 states and 381 transitions. [2021-12-19 19:11:18,462 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 213 [2021-12-19 19:11:18,462 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-19 19:11:18,462 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-19 19:11:18,462 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-12-19 19:11:18,462 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, 1, 1, 1, 1, 1, 1] [2021-12-19 19:11:18,462 INFO L791 eck$LassoCheckResult]: Stem: 1557#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(13, 4);call #Ultimate.allocInit(7, 5);call write~init~int(44, 5, 0, 1);call write~init~int(77, 5, 1, 1);call write~init~int(101, 5, 2, 1);call write~init~int(116, 5, 3, 1);call write~init~int(104, 5, 4, 1);call write~init~int(58, 5, 5, 1);call write~init~int(0, 5, 6, 1);call #Ultimate.allocInit(5, 6);call write~init~int(67, 6, 0, 1);call write~init~int(82, 6, 1, 1);call write~init~int(73, 6, 2, 1);call write~init~int(84, 6, 3, 1);call write~init~int(0, 6, 4, 1);call #Ultimate.allocInit(3, 7);call write~init~int(79, 7, 0, 1);call write~init~int(75, 7, 1, 1);call write~init~int(0, 7, 2, 1);call #Ultimate.allocInit(2, 8);call write~init~int(41, 8, 0, 1);call write~init~int(0, 8, 1, 1);call #Ultimate.allocInit(13, 9);call #Ultimate.allocInit(3, 10);call write~init~int(79, 10, 0, 1);call write~init~int(110, 10, 1, 1);call write~init~int(0, 10, 2, 1);call #Ultimate.allocInit(4, 11);call write~init~int(79, 11, 0, 1);call write~init~int(102, 11, 1, 1);call write~init~int(102, 11, 2, 1);call write~init~int(0, 11, 3, 1);call #Ultimate.allocInit(7, 12);call write~init~int(44, 12, 0, 1);call write~init~int(80, 12, 1, 1);call write~init~int(117, 12, 2, 1);call write~init~int(109, 12, 3, 1);call write~init~int(112, 12, 4, 1);call write~init~int(58, 12, 5, 1);call write~init~int(0, 12, 6, 1);call #Ultimate.allocInit(3, 13);call write~init~int(79, 13, 0, 1);call write~init~int(110, 13, 1, 1);call write~init~int(0, 13, 2, 1);call #Ultimate.allocInit(4, 14);call write~init~int(79, 14, 0, 1);call write~init~int(102, 14, 1, 1);call write~init~int(102, 14, 2, 1);call write~init~int(0, 14, 3, 1);call #Ultimate.allocInit(3, 15);call write~init~int(41, 15, 0, 1);call write~init~int(32, 15, 1, 1);call write~init~int(0, 15, 2, 1);call #Ultimate.allocInit(2, 16);call write~init~int(10, 16, 0, 1);call write~init~int(0, 16, 1, 1);call #Ultimate.allocInit(30, 17);call #Ultimate.allocInit(9, 18);call #Ultimate.allocInit(21, 19);call #Ultimate.allocInit(30, 20);call #Ultimate.allocInit(9, 21);call #Ultimate.allocInit(21, 22);call #Ultimate.allocInit(30, 23);call #Ultimate.allocInit(9, 24);call #Ultimate.allocInit(25, 25);call #Ultimate.allocInit(30, 26);call #Ultimate.allocInit(9, 27);call #Ultimate.allocInit(25, 28);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0; 1471#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret26#1, main_~retValue_acc~8#1, main_~tmp~5#1;havoc main_~retValue_acc~8#1;havoc main_~tmp~5#1;assume { :begin_inline_select_helpers } true; 1472#L84 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 1528#L77 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~1#1;havoc valid_product_~retValue_acc~1#1;valid_product_~retValue_acc~1#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~1#1; 1529#L92 main_#t~ret26#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~5#1 := main_#t~ret26#1;havoc main_#t~ret26#1; 1452#L540 assume 0 != main_~tmp~5#1;assume { :begin_inline_setup } true; 1453#L516 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet27#1, test_#t~nondet28#1, test_#t~nondet29#1, test_#t~nondet30#1, test_~splverifierCounter~0#1, test_~tmp~6#1, test_~tmp___0~2#1, test_~tmp___1~1#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~6#1;havoc test_~tmp___0~2#1;havoc test_~tmp___1~1#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 1534#L564-2 [2021-12-19 19:11:18,463 INFO L793 eck$LassoCheckResult]: Loop: 1534#L564-2 assume !false; 1424#L565 assume test_~splverifierCounter~0#1 < 4; 1425#L566 test_~tmp~6#1 := test_#t~nondet27#1;havoc test_#t~nondet27#1; 1665#L574 assume !(0 != test_~tmp~6#1); 1663#L574-2 test_~tmp___0~2#1 := test_#t~nondet28#1;havoc test_#t~nondet28#1; 1661#L584 assume !(0 != test_~tmp___0~2#1); 1659#L584-2 test_~tmp___2~0#1 := test_#t~nondet29#1;havoc test_#t~nondet29#1; 1658#L594 assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 1475#L453 assume { :end_inline_startSystem } true; 1476#L602-2 assume { :begin_inline_timeShift } true; 1520#L246 assume !(0 != ~pumpRunning~0); 1412#L246-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret14#1, processEnvironment_~tmp~2#1;havoc processEnvironment_~tmp~2#1; 1413#L304 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__methaneQuery } true;havoc processEnvironment__wrappee__methaneQuery_#t~ret13#1, processEnvironment__wrappee__methaneQuery_~tmp~1#1;havoc processEnvironment__wrappee__methaneQuery_~tmp~1#1; 1370#L278-2 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret25#1, isHighWaterLevel_~retValue_acc~7#1, isHighWaterLevel_~tmp~4#1, isHighWaterLevel_~tmp___0~1#1;havoc isHighWaterLevel_~retValue_acc~7#1;havoc isHighWaterLevel_~tmp~4#1;havoc isHighWaterLevel_~tmp___0~1#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~4#1;havoc isHighWaterSensorDry_~retValue_acc~4#1; 1371#L222-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~4#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~4#1; 1432#L227-1 isHighWaterLevel_#t~ret25#1 := isHighWaterSensorDry_#res#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~4#1 := isHighWaterLevel_#t~ret25#1;havoc isHighWaterLevel_#t~ret25#1; 1433#L423-3 assume 0 != isHighWaterLevel_~tmp~4#1;isHighWaterLevel_~tmp___0~1#1 := 0; 1549#L423-5 isHighWaterLevel_~retValue_acc~7#1 := isHighWaterLevel_~tmp___0~1#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~7#1; 1510#L429-1 processEnvironment__wrappee__methaneQuery_#t~ret13#1 := isHighWaterLevel_#res#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__methaneQuery_~tmp~1#1 := processEnvironment__wrappee__methaneQuery_#t~ret13#1;havoc processEnvironment__wrappee__methaneQuery_#t~ret13#1; 1511#L282-3 assume !(0 != processEnvironment__wrappee__methaneQuery_~tmp~1#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 1521#L270-2 assume { :end_inline_processEnvironment__wrappee__base } true; 1459#L278-3 assume { :end_inline_processEnvironment__wrappee__methaneQuery } true; 1460#L304-1 assume { :end_inline_processEnvironment } true; 1544#L253-1 assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret5#1, __utac_acc__Specification3_spec__1_#t~ret6#1, __utac_acc__Specification3_spec__1_#t~ret7#1, __utac_acc__Specification3_spec__1_~tmp~0#1, __utac_acc__Specification3_spec__1_~tmp___0~0#1, __utac_acc__Specification3_spec__1_~tmp___1~0#1;havoc __utac_acc__Specification3_spec__1_~tmp~0#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~0#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~0#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~2#1;havoc isMethaneLevelCritical_~retValue_acc~2#1;isMethaneLevelCritical_~retValue_acc~2#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~2#1; 1635#L182-3 __utac_acc__Specification3_spec__1_#t~ret5#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~0#1 := __utac_acc__Specification3_spec__1_#t~ret5#1;havoc __utac_acc__Specification3_spec__1_#t~ret5#1; 1630#L109 assume 0 != __utac_acc__Specification3_spec__1_~tmp~0#1; 1629#L115-1 assume { :end_inline___utac_acc__Specification3_spec__1 } true; 1628#L263 assume { :end_inline_timeShift } true; 1534#L564-2 [2021-12-19 19:11:18,463 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-19 19:11:18,463 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 3 times [2021-12-19 19:11:18,463 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-19 19:11:18,463 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [663760982] [2021-12-19 19:11:18,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 19:11:18,464 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-19 19:11:18,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-19 19:11:18,471 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-19 19:11:18,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-19 19:11:18,494 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-19 19:11:18,495 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-19 19:11:18,495 INFO L85 PathProgramCache]: Analyzing trace with hash 1117706601, now seen corresponding path program 1 times [2021-12-19 19:11:18,495 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-19 19:11:18,495 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1478456731] [2021-12-19 19:11:18,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 19:11:18,495 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-19 19:11:18,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-19 19:11:18,499 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-19 19:11:18,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-19 19:11:18,503 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-19 19:11:18,504 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-19 19:11:18,504 INFO L85 PathProgramCache]: Analyzing trace with hash -133275347, now seen corresponding path program 1 times [2021-12-19 19:11:18,504 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-19 19:11:18,504 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1107333932] [2021-12-19 19:11:18,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 19:11:18,504 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-19 19:11:18,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-19 19:11:18,580 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-19 19:11:18,581 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-19 19:11:18,581 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1107333932] [2021-12-19 19:11:18,581 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1107333932] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-19 19:11:18,581 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-19 19:11:18,581 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-19 19:11:18,581 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1514009091] [2021-12-19 19:11:18,581 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-19 19:11:18,795 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-19 19:11:18,795 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-19 19:11:18,795 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-19 19:11:18,796 INFO L87 Difference]: Start difference. First operand 299 states and 381 transitions. cyclomatic complexity: 85 Second operand has 5 states, 5 states have (on average 7.0) internal successors, (35), 4 states have internal predecessors, (35), 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) [2021-12-19 19:11:18,960 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-19 19:11:18,960 INFO L93 Difference]: Finished difference Result 1027 states and 1300 transitions. [2021-12-19 19:11:18,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-19 19:11:18,961 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 1027 states and 1300 transitions. [2021-12-19 19:11:18,966 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 765 [2021-12-19 19:11:18,970 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 1027 states to 1027 states and 1300 transitions. [2021-12-19 19:11:18,971 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 1027 [2021-12-19 19:11:18,972 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 1027 [2021-12-19 19:11:18,972 INFO L73 IsDeterministic]: Start isDeterministic. Operand 1027 states and 1300 transitions. [2021-12-19 19:11:18,974 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-19 19:11:18,974 INFO L681 BuchiCegarLoop]: Abstraction has 1027 states and 1300 transitions. [2021-12-19 19:11:18,974 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1027 states and 1300 transitions. [2021-12-19 19:11:18,981 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1027 to 591. [2021-12-19 19:11:18,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 591 states, 591 states have (on average 1.257191201353638) internal successors, (743), 590 states have internal predecessors, (743), 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) [2021-12-19 19:11:18,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 591 states to 591 states and 743 transitions. [2021-12-19 19:11:18,983 INFO L704 BuchiCegarLoop]: Abstraction has 591 states and 743 transitions. [2021-12-19 19:11:18,983 INFO L587 BuchiCegarLoop]: Abstraction has 591 states and 743 transitions. [2021-12-19 19:11:18,983 INFO L425 BuchiCegarLoop]: ======== Iteration 4============ [2021-12-19 19:11:18,983 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 591 states and 743 transitions. [2021-12-19 19:11:18,985 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 426 [2021-12-19 19:11:18,985 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-19 19:11:18,985 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-19 19:11:18,986 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-12-19 19:11:18,986 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, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-19 19:11:18,986 INFO L791 eck$LassoCheckResult]: Stem: 2938#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(13, 4);call #Ultimate.allocInit(7, 5);call write~init~int(44, 5, 0, 1);call write~init~int(77, 5, 1, 1);call write~init~int(101, 5, 2, 1);call write~init~int(116, 5, 3, 1);call write~init~int(104, 5, 4, 1);call write~init~int(58, 5, 5, 1);call write~init~int(0, 5, 6, 1);call #Ultimate.allocInit(5, 6);call write~init~int(67, 6, 0, 1);call write~init~int(82, 6, 1, 1);call write~init~int(73, 6, 2, 1);call write~init~int(84, 6, 3, 1);call write~init~int(0, 6, 4, 1);call #Ultimate.allocInit(3, 7);call write~init~int(79, 7, 0, 1);call write~init~int(75, 7, 1, 1);call write~init~int(0, 7, 2, 1);call #Ultimate.allocInit(2, 8);call write~init~int(41, 8, 0, 1);call write~init~int(0, 8, 1, 1);call #Ultimate.allocInit(13, 9);call #Ultimate.allocInit(3, 10);call write~init~int(79, 10, 0, 1);call write~init~int(110, 10, 1, 1);call write~init~int(0, 10, 2, 1);call #Ultimate.allocInit(4, 11);call write~init~int(79, 11, 0, 1);call write~init~int(102, 11, 1, 1);call write~init~int(102, 11, 2, 1);call write~init~int(0, 11, 3, 1);call #Ultimate.allocInit(7, 12);call write~init~int(44, 12, 0, 1);call write~init~int(80, 12, 1, 1);call write~init~int(117, 12, 2, 1);call write~init~int(109, 12, 3, 1);call write~init~int(112, 12, 4, 1);call write~init~int(58, 12, 5, 1);call write~init~int(0, 12, 6, 1);call #Ultimate.allocInit(3, 13);call write~init~int(79, 13, 0, 1);call write~init~int(110, 13, 1, 1);call write~init~int(0, 13, 2, 1);call #Ultimate.allocInit(4, 14);call write~init~int(79, 14, 0, 1);call write~init~int(102, 14, 1, 1);call write~init~int(102, 14, 2, 1);call write~init~int(0, 14, 3, 1);call #Ultimate.allocInit(3, 15);call write~init~int(41, 15, 0, 1);call write~init~int(32, 15, 1, 1);call write~init~int(0, 15, 2, 1);call #Ultimate.allocInit(2, 16);call write~init~int(10, 16, 0, 1);call write~init~int(0, 16, 1, 1);call #Ultimate.allocInit(30, 17);call #Ultimate.allocInit(9, 18);call #Ultimate.allocInit(21, 19);call #Ultimate.allocInit(30, 20);call #Ultimate.allocInit(9, 21);call #Ultimate.allocInit(21, 22);call #Ultimate.allocInit(30, 23);call #Ultimate.allocInit(9, 24);call #Ultimate.allocInit(25, 25);call #Ultimate.allocInit(30, 26);call #Ultimate.allocInit(9, 27);call #Ultimate.allocInit(25, 28);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0; 2822#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret26#1, main_~retValue_acc~8#1, main_~tmp~5#1;havoc main_~retValue_acc~8#1;havoc main_~tmp~5#1;assume { :begin_inline_select_helpers } true; 2823#L84 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 2887#L77 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~1#1;havoc valid_product_~retValue_acc~1#1;valid_product_~retValue_acc~1#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~1#1; 2888#L92 main_#t~ret26#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~5#1 := main_#t~ret26#1;havoc main_#t~ret26#1; 2802#L540 assume 0 != main_~tmp~5#1;assume { :begin_inline_setup } true; 2803#L516 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet27#1, test_#t~nondet28#1, test_#t~nondet29#1, test_#t~nondet30#1, test_~splverifierCounter~0#1, test_~tmp~6#1, test_~tmp___0~2#1, test_~tmp___1~1#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~6#1;havoc test_~tmp___0~2#1;havoc test_~tmp___1~1#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 2897#L564-2 [2021-12-19 19:11:18,986 INFO L793 eck$LassoCheckResult]: Loop: 2897#L564-2 assume !false; 3207#L565 assume test_~splverifierCounter~0#1 < 4; 2928#L566 test_~tmp~6#1 := test_#t~nondet27#1;havoc test_#t~nondet27#1; 2839#L574 assume !(0 != test_~tmp~6#1); 2837#L574-2 test_~tmp___0~2#1 := test_#t~nondet28#1;havoc test_#t~nondet28#1; 2852#L584 assume !(0 != test_~tmp___0~2#1); 2854#L584-2 test_~tmp___2~0#1 := test_#t~nondet29#1;havoc test_#t~nondet29#1; 3285#L594 assume !(0 != test_~tmp___2~0#1);test_~tmp___1~1#1 := test_#t~nondet30#1;havoc test_#t~nondet30#1; 3283#L602 assume !(0 != test_~tmp___1~1#1); 3276#L602-2 assume { :begin_inline_timeShift } true; 3275#L246 assume !(0 != ~pumpRunning~0); 3226#L246-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret14#1, processEnvironment_~tmp~2#1;havoc processEnvironment_~tmp~2#1; 3217#L304 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__methaneQuery } true;havoc processEnvironment__wrappee__methaneQuery_#t~ret13#1, processEnvironment__wrappee__methaneQuery_~tmp~1#1;havoc processEnvironment__wrappee__methaneQuery_~tmp~1#1; 2960#L278-2 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret25#1, isHighWaterLevel_~retValue_acc~7#1, isHighWaterLevel_~tmp~4#1, isHighWaterLevel_~tmp___0~1#1;havoc isHighWaterLevel_~retValue_acc~7#1;havoc isHighWaterLevel_~tmp~4#1;havoc isHighWaterLevel_~tmp___0~1#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~4#1;havoc isHighWaterSensorDry_~retValue_acc~4#1; 3272#L222-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~4#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~4#1; 3270#L227-1 isHighWaterLevel_#t~ret25#1 := isHighWaterSensorDry_#res#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~4#1 := isHighWaterLevel_#t~ret25#1;havoc isHighWaterLevel_#t~ret25#1; 3269#L423-3 assume 0 != isHighWaterLevel_~tmp~4#1;isHighWaterLevel_~tmp___0~1#1 := 0; 2919#L423-5 isHighWaterLevel_~retValue_acc~7#1 := isHighWaterLevel_~tmp___0~1#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~7#1; 2866#L429-1 processEnvironment__wrappee__methaneQuery_#t~ret13#1 := isHighWaterLevel_#res#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__methaneQuery_~tmp~1#1 := processEnvironment__wrappee__methaneQuery_#t~ret13#1;havoc processEnvironment__wrappee__methaneQuery_#t~ret13#1; 2867#L282-3 assume !(0 != processEnvironment__wrappee__methaneQuery_~tmp~1#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 2878#L270-2 assume { :end_inline_processEnvironment__wrappee__base } true; 2808#L278-3 assume { :end_inline_processEnvironment__wrappee__methaneQuery } true; 2809#L304-1 assume { :end_inline_processEnvironment } true; 2911#L253-1 assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret5#1, __utac_acc__Specification3_spec__1_#t~ret6#1, __utac_acc__Specification3_spec__1_#t~ret7#1, __utac_acc__Specification3_spec__1_~tmp~0#1, __utac_acc__Specification3_spec__1_~tmp___0~0#1, __utac_acc__Specification3_spec__1_~tmp___1~0#1;havoc __utac_acc__Specification3_spec__1_~tmp~0#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~0#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~0#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~2#1;havoc isMethaneLevelCritical_~retValue_acc~2#1;isMethaneLevelCritical_~retValue_acc~2#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~2#1; 3215#L182-3 __utac_acc__Specification3_spec__1_#t~ret5#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~0#1 := __utac_acc__Specification3_spec__1_#t~ret5#1;havoc __utac_acc__Specification3_spec__1_#t~ret5#1; 3214#L109 assume !(0 != __utac_acc__Specification3_spec__1_~tmp~0#1);assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~3#1;havoc getWaterLevel_~retValue_acc~3#1;getWaterLevel_~retValue_acc~3#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~3#1; 3213#L214 __utac_acc__Specification3_spec__1_#t~ret6#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification3_spec__1_~tmp___0~0#1 := __utac_acc__Specification3_spec__1_#t~ret6#1;havoc __utac_acc__Specification3_spec__1_#t~ret6#1; 3210#L115 assume !(2 == __utac_acc__Specification3_spec__1_~tmp___0~0#1); 3209#L115-1 assume { :end_inline___utac_acc__Specification3_spec__1 } true; 3208#L263 assume { :end_inline_timeShift } true; 2897#L564-2 [2021-12-19 19:11:18,986 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-19 19:11:18,986 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 4 times [2021-12-19 19:11:18,987 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-19 19:11:18,987 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [989649536] [2021-12-19 19:11:18,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 19:11:18,987 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-19 19:11:18,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-19 19:11:18,991 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-19 19:11:18,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-19 19:11:18,997 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-19 19:11:18,997 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-19 19:11:18,997 INFO L85 PathProgramCache]: Analyzing trace with hash -1265710194, now seen corresponding path program 1 times [2021-12-19 19:11:18,997 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-19 19:11:18,998 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1542886692] [2021-12-19 19:11:18,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 19:11:18,998 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-19 19:11:19,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-19 19:11:19,015 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-19 19:11:19,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-19 19:11:19,019 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-19 19:11:19,020 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-19 19:11:19,020 INFO L85 PathProgramCache]: Analyzing trace with hash -868519342, now seen corresponding path program 1 times [2021-12-19 19:11:19,020 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-19 19:11:19,020 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [800524077] [2021-12-19 19:11:19,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 19:11:19,020 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-19 19:11:19,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-19 19:11:19,033 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-19 19:11:19,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-19 19:11:19,042 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-19 19:11:21,256 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 19.12 07:11:21 BoogieIcfgContainer [2021-12-19 19:11:21,256 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-12-19 19:11:21,257 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-19 19:11:21,257 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-19 19:11:21,257 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-19 19:11:21,258 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.12 07:11:17" (3/4) ... [2021-12-19 19:11:21,259 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2021-12-19 19:11:21,294 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-12-19 19:11:21,295 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-19 19:11:21,295 INFO L158 Benchmark]: Toolchain (without parser) took 4794.79ms. Allocated memory was 102.8MB in the beginning and 172.0MB in the end (delta: 69.2MB). Free memory was 72.5MB in the beginning and 105.4MB in the end (delta: -32.8MB). Peak memory consumption was 35.1MB. Max. memory is 16.1GB. [2021-12-19 19:11:21,296 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 102.8MB. Free memory was 59.9MB in the beginning and 59.8MB in the end (delta: 40.1kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-19 19:11:21,296 INFO L158 Benchmark]: CACSL2BoogieTranslator took 350.66ms. Allocated memory was 102.8MB in the beginning and 142.6MB in the end (delta: 39.8MB). Free memory was 72.5MB in the beginning and 110.3MB in the end (delta: -37.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-12-19 19:11:21,296 INFO L158 Benchmark]: Boogie Procedure Inliner took 70.94ms. Allocated memory is still 142.6MB. Free memory was 110.3MB in the beginning and 106.8MB in the end (delta: 3.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-12-19 19:11:21,300 INFO L158 Benchmark]: Boogie Preprocessor took 50.94ms. Allocated memory is still 142.6MB. Free memory was 106.8MB in the beginning and 104.0MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-19 19:11:21,301 INFO L158 Benchmark]: RCFGBuilder took 509.98ms. Allocated memory is still 142.6MB. Free memory was 104.0MB in the beginning and 78.8MB in the end (delta: 25.2MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2021-12-19 19:11:21,301 INFO L158 Benchmark]: BuchiAutomizer took 3769.86ms. Allocated memory was 142.6MB in the beginning and 172.0MB in the end (delta: 29.4MB). Free memory was 78.8MB in the beginning and 108.4MB in the end (delta: -29.6MB). Peak memory consumption was 55.5MB. Max. memory is 16.1GB. [2021-12-19 19:11:21,301 INFO L158 Benchmark]: Witness Printer took 37.97ms. Allocated memory is still 172.0MB. Free memory was 108.4MB in the beginning and 105.4MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-19 19:11:21,303 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 102.8MB. Free memory was 59.9MB in the beginning and 59.8MB in the end (delta: 40.1kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 350.66ms. Allocated memory was 102.8MB in the beginning and 142.6MB in the end (delta: 39.8MB). Free memory was 72.5MB in the beginning and 110.3MB in the end (delta: -37.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 70.94ms. Allocated memory is still 142.6MB. Free memory was 110.3MB in the beginning and 106.8MB in the end (delta: 3.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 50.94ms. Allocated memory is still 142.6MB. Free memory was 106.8MB in the beginning and 104.0MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 509.98ms. Allocated memory is still 142.6MB. Free memory was 104.0MB in the beginning and 78.8MB in the end (delta: 25.2MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * BuchiAutomizer took 3769.86ms. Allocated memory was 142.6MB in the beginning and 172.0MB in the end (delta: 29.4MB). Free memory was 78.8MB in the beginning and 108.4MB in the end (delta: -29.6MB). Peak memory consumption was 55.5MB. Max. memory is 16.1GB. * Witness Printer took 37.97ms. Allocated memory is still 172.0MB. Free memory was 108.4MB in the beginning and 105.4MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 3 terminating modules (3 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.3 modules have a trivial ranking function, the largest among these consists of 6 locations. The remainder module has 591 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 3.7s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 3.0s. Construction of modules took 0.1s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 0. Minimization of det autom 3. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 778 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 591 states and ocurred in iteration 3. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2234 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2234 mSDsluCounter, 3508 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2678 mSDsCounter, 78 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 222 IncrementalHoareTripleChecker+Invalid, 300 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 78 mSolverCounterUnsat, 830 mSDtfsCounter, 222 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI1 SFLT0 conc2 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: 564]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=1} State at position 1 is {splverifierCounter=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@658e09ca=0, tmp=0, NULL=0, tmp___0=0, head=0, pumpRunning=0, tmp___0=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@78a5c307=0, NULL=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@ce40b41=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3e501119=0, methaneLevelCritical=0, tmp___0=1, \result=0, tmp=0, retValue_acc=1, retValue_acc=1, \result=1, retValue_acc=0, \result=1, retValue_acc=0, tmp=1, tmp___1=0, tmp___2=0, cleanupTimeShifts=4, tmp=1, \result=0, tmp=0, head=0, retValue_acc=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@368d0a2f=0, \result=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@72cbce45=0, retValue_acc=0, tmp___1=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@be47f39=0, waterLevel=1, systemActive=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@614ad700=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@cc7af5f=0, \result=0, tmp=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@31395c03=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@634391dc=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 564]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L139] int waterLevel = 1; [L140] int methaneLevelCritical = 0; [L239] int pumpRunning = 0; [L240] int systemActive = 1; [L457] int cleanupTimeShifts = 4; [L792] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L531] int retValue_acc ; [L532] int tmp ; [L536] FCALL select_helpers() [L537] FCALL select_features() [L538] CALL, EXPR valid_product() [L88] int retValue_acc ; [L91] retValue_acc = 1 [L92] return (retValue_acc); [L538] RET, EXPR valid_product() [L538] tmp = valid_product() [L540] COND TRUE \read(tmp) [L542] FCALL setup() [L543] CALL runTest() [L525] CALL test() [L555] int splverifierCounter ; [L556] int tmp ; [L557] int tmp___0 ; [L558] int tmp___1 ; [L559] int tmp___2 ; [L562] splverifierCounter = 0 Loop: [L564] COND TRUE 1 [L566] COND TRUE splverifierCounter < 4 [L572] tmp = __VERIFIER_nondet_int() [L574] COND FALSE !(\read(tmp)) [L582] tmp___0 = __VERIFIER_nondet_int() [L584] COND FALSE !(\read(tmp___0)) [L592] tmp___2 = __VERIFIER_nondet_int() [L594] COND FALSE !(\read(tmp___2)) [L600] tmp___1 = __VERIFIER_nondet_int() [L602] COND FALSE !(\read(tmp___1)) [L611] CALL timeShift() [L246] COND FALSE !(\read(pumpRunning)) [L253] COND TRUE \read(systemActive) [L255] CALL processEnvironment() [L301] int tmp ; [L304] COND FALSE !(\read(pumpRunning)) [L319] CALL processEnvironment__wrappee__methaneQuery() [L275] int tmp ; [L278] COND TRUE ! pumpRunning [L280] CALL, EXPR isHighWaterLevel() [L415] int retValue_acc ; [L416] int tmp ; [L417] int tmp___0 ; [L421] CALL, EXPR isHighWaterSensorDry() [L219] int retValue_acc ; [L222] COND TRUE waterLevel < 2 [L223] retValue_acc = 1 [L224] return (retValue_acc); [L421] RET, EXPR isHighWaterSensorDry() [L421] tmp = isHighWaterSensorDry() [L423] COND TRUE \read(tmp) [L424] tmp___0 = 0 [L428] retValue_acc = tmp___0 [L429] return (retValue_acc); [L280] RET, EXPR isHighWaterLevel() [L280] tmp = isHighWaterLevel() [L282] COND FALSE !(\read(tmp)) [L288] FCALL processEnvironment__wrappee__base() [L319] RET processEnvironment__wrappee__methaneQuery() [L255] RET processEnvironment() [L261] CALL __utac_acc__Specification3_spec__1() [L101] int tmp ; [L102] int tmp___0 ; [L103] int tmp___1 ; [L107] CALL, EXPR isMethaneLevelCritical() [L178] int retValue_acc ; [L181] retValue_acc = methaneLevelCritical [L182] return (retValue_acc); [L107] RET, EXPR isMethaneLevelCritical() [L107] tmp = isMethaneLevelCritical() [L109] COND FALSE !(\read(tmp)) [L113] CALL, EXPR getWaterLevel() [L210] int retValue_acc ; [L213] retValue_acc = waterLevel [L214] return (retValue_acc); [L113] RET, EXPR getWaterLevel() [L113] tmp___0 = getWaterLevel() [L115] COND FALSE !(tmp___0 == 2) [L261] RET __utac_acc__Specification3_spec__1() [L611] RET timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2021-12-19 19:11:21,333 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... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM)