./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/minepump_spec1_product20.cil.c --full-output -ea --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 03d7b7b3 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -ea -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i ../sv-benchmarks/c/product-lines/minepump_spec1_product20.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 a7cd784867b5981272ba60caba7961cbaf680a952b35b095dbec7935be0f5966 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-03d7b7b [2022-02-21 04:15:08,524 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-21 04:15:08,526 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-21 04:15:08,554 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-02-21 04:15:08,554 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-02-21 04:15:08,557 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-02-21 04:15:08,558 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-02-21 04:15:08,562 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-02-21 04:15:08,563 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-02-21 04:15:08,567 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-02-21 04:15:08,567 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-02-21 04:15:08,568 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-02-21 04:15:08,569 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-21 04:15:08,571 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-21 04:15:08,572 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-21 04:15:08,575 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-21 04:15:08,576 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-21 04:15:08,576 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-21 04:15:08,578 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-21 04:15:08,582 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-21 04:15:08,583 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-21 04:15:08,584 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-21 04:15:08,585 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-21 04:15:08,586 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-21 04:15:08,590 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-02-21 04:15:08,591 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-02-21 04:15:08,592 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-02-21 04:15:08,593 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-02-21 04:15:08,593 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-02-21 04:15:08,594 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-02-21 04:15:08,594 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-02-21 04:15:08,595 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-02-21 04:15:08,596 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-02-21 04:15:08,597 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-02-21 04:15:08,597 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-02-21 04:15:08,598 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-02-21 04:15:08,598 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-02-21 04:15:08,598 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-02-21 04:15:08,598 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-21 04:15:08,599 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-21 04:15:08,599 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-21 04:15:08,600 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2022-02-21 04:15:08,625 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-21 04:15:08,625 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-21 04:15:08,626 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-02-21 04:15:08,626 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-02-21 04:15:08,628 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-02-21 04:15:08,628 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-02-21 04:15:08,628 INFO L138 SettingsManager]: * Use SBE=true [2022-02-21 04:15:08,628 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-02-21 04:15:08,628 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-02-21 04:15:08,629 INFO L138 SettingsManager]: * Use old map elimination=false [2022-02-21 04:15:08,629 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-02-21 04:15:08,629 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-02-21 04:15:08,630 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-02-21 04:15:08,630 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-21 04:15:08,630 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-21 04:15:08,630 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-02-21 04:15:08,630 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-21 04:15:08,630 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-21 04:15:08,631 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-21 04:15:08,631 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-02-21 04:15:08,632 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-02-21 04:15:08,635 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-02-21 04:15:08,635 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-21 04:15:08,635 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-21 04:15:08,635 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-02-21 04:15:08,635 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-21 04:15:08,636 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-02-21 04:15:08,636 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-21 04:15:08,636 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-21 04:15:08,637 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-21 04:15:08,637 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-02-21 04:15:08,637 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-02-21 04:15:08,638 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a7cd784867b5981272ba60caba7961cbaf680a952b35b095dbec7935be0f5966 [2022-02-21 04:15:08,862 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-21 04:15:08,879 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-21 04:15:08,880 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-21 04:15:08,881 INFO L271 PluginConnector]: Initializing CDTParser... [2022-02-21 04:15:08,889 INFO L275 PluginConnector]: CDTParser initialized [2022-02-21 04:15:08,891 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec1_product20.cil.c [2022-02-21 04:15:08,951 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/87fd6ed82/a2c0dd6d98b94a0686928417ced7e057/FLAG3aee4ee56 [2022-02-21 04:15:09,392 INFO L306 CDTParser]: Found 1 translation units. [2022-02-21 04:15:09,392 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec1_product20.cil.c [2022-02-21 04:15:09,404 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/87fd6ed82/a2c0dd6d98b94a0686928417ced7e057/FLAG3aee4ee56 [2022-02-21 04:15:09,417 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/87fd6ed82/a2c0dd6d98b94a0686928417ced7e057 [2022-02-21 04:15:09,419 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-21 04:15:09,421 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-02-21 04:15:09,422 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-02-21 04:15:09,422 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-02-21 04:15:09,424 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-02-21 04:15:09,425 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.02 04:15:09" (1/1) ... [2022-02-21 04:15:09,426 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@35d956d1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:15:09, skipping insertion in model container [2022-02-21 04:15:09,426 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.02 04:15:09" (1/1) ... [2022-02-21 04:15:09,430 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-02-21 04:15:09,471 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-02-21 04:15:09,673 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_spec1_product20.cil.c[1605,1618] [2022-02-21 04:15:09,897 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-21 04:15:09,915 INFO L203 MainTranslator]: Completed pre-run [2022-02-21 04:15:09,930 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_spec1_product20.cil.c[1605,1618] [2022-02-21 04:15:09,992 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-21 04:15:10,010 INFO L208 MainTranslator]: Completed translation [2022-02-21 04:15:10,011 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:15:10 WrapperNode [2022-02-21 04:15:10,011 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-02-21 04:15:10,012 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-02-21 04:15:10,012 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-02-21 04:15:10,012 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-02-21 04:15:10,017 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:15:10" (1/1) ... [2022-02-21 04:15:10,037 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:15:10" (1/1) ... [2022-02-21 04:15:10,071 INFO L137 Inliner]: procedures = 54, calls = 152, calls flagged for inlining = 49, calls inlined = 50, statements flattened = 387 [2022-02-21 04:15:10,071 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-02-21 04:15:10,072 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-21 04:15:10,072 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-21 04:15:10,072 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-21 04:15:10,078 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:15:10" (1/1) ... [2022-02-21 04:15:10,078 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:15:10" (1/1) ... [2022-02-21 04:15:10,080 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:15:10" (1/1) ... [2022-02-21 04:15:10,080 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:15:10" (1/1) ... [2022-02-21 04:15:10,096 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:15:10" (1/1) ... [2022-02-21 04:15:10,099 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:15:10" (1/1) ... [2022-02-21 04:15:10,105 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:15:10" (1/1) ... [2022-02-21 04:15:10,107 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-21 04:15:10,108 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-21 04:15:10,108 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-21 04:15:10,108 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-21 04:15:10,109 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:15:10" (1/1) ... [2022-02-21 04:15:10,114 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-02-21 04:15:10,123 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-21 04:15:10,145 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) [2022-02-21 04:15:10,165 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 [2022-02-21 04:15:10,183 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-02-21 04:15:10,184 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-02-21 04:15:10,184 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-21 04:15:10,184 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-21 04:15:10,294 INFO L234 CfgBuilder]: Building ICFG [2022-02-21 04:15:10,296 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-21 04:15:10,563 INFO L275 CfgBuilder]: Performing block encoding [2022-02-21 04:15:10,568 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-21 04:15:10,569 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-02-21 04:15:10,570 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 04:15:10 BoogieIcfgContainer [2022-02-21 04:15:10,570 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-21 04:15:10,571 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-02-21 04:15:10,571 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-02-21 04:15:10,573 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-02-21 04:15:10,574 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-02-21 04:15:10,574 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 21.02 04:15:09" (1/3) ... [2022-02-21 04:15:10,575 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@63023757 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.02 04:15:10, skipping insertion in model container [2022-02-21 04:15:10,575 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-02-21 04:15:10,575 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:15:10" (2/3) ... [2022-02-21 04:15:10,576 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@63023757 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.02 04:15:10, skipping insertion in model container [2022-02-21 04:15:10,576 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-02-21 04:15:10,576 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 04:15:10" (3/3) ... [2022-02-21 04:15:10,577 INFO L388 chiAutomizerObserver]: Analyzing ICFG minepump_spec1_product20.cil.c [2022-02-21 04:15:10,618 INFO L359 BuchiCegarLoop]: Interprodecural is true [2022-02-21 04:15:10,618 INFO L360 BuchiCegarLoop]: Hoare is false [2022-02-21 04:15:10,618 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-02-21 04:15:10,618 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-02-21 04:15:10,618 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-02-21 04:15:10,618 INFO L364 BuchiCegarLoop]: Difference is false [2022-02-21 04:15:10,619 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-02-21 04:15:10,619 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2022-02-21 04:15:10,633 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 107 states, 106 states have (on average 1.3584905660377358) internal successors, (144), 106 states have internal predecessors, (144), 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) [2022-02-21 04:15:10,661 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 69 [2022-02-21 04:15:10,664 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:15:10,664 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:15:10,668 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:15:10,669 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:15:10,669 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2022-02-21 04:15:10,670 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 107 states, 106 states have (on average 1.3584905660377358) internal successors, (144), 106 states have internal predecessors, (144), 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) [2022-02-21 04:15:10,679 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 69 [2022-02-21 04:15:10,680 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:15:10,680 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:15:10,680 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:15:10,680 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:15:10,684 INFO L791 eck$LassoCheckResult]: Stem: 97#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(3, 5);call write~init~int(79, 5, 0, 1);call write~init~int(110, 5, 1, 1);call write~init~int(0, 5, 2, 1);call #Ultimate.allocInit(4, 6);call write~init~int(79, 6, 0, 1);call write~init~int(102, 6, 1, 1);call write~init~int(102, 6, 2, 1);call write~init~int(0, 6, 3, 1);call #Ultimate.allocInit(7, 7);call write~init~int(44, 7, 0, 1);call write~init~int(80, 7, 1, 1);call write~init~int(117, 7, 2, 1);call write~init~int(109, 7, 3, 1);call write~init~int(112, 7, 4, 1);call write~init~int(58, 7, 5, 1);call write~init~int(0, 7, 6, 1);call #Ultimate.allocInit(3, 8);call write~init~int(79, 8, 0, 1);call write~init~int(110, 8, 1, 1);call write~init~int(0, 8, 2, 1);call #Ultimate.allocInit(4, 9);call write~init~int(79, 9, 0, 1);call write~init~int(102, 9, 1, 1);call write~init~int(102, 9, 2, 1);call write~init~int(0, 9, 3, 1);call #Ultimate.allocInit(3, 10);call write~init~int(41, 10, 0, 1);call write~init~int(32, 10, 1, 1);call write~init~int(0, 10, 2, 1);call #Ultimate.allocInit(2, 11);call write~init~int(10, 11, 0, 1);call write~init~int(0, 11, 1, 1);call #Ultimate.allocInit(13, 12);call #Ultimate.allocInit(7, 13);call write~init~int(44, 13, 0, 1);call write~init~int(77, 13, 1, 1);call write~init~int(101, 13, 2, 1);call write~init~int(116, 13, 3, 1);call write~init~int(104, 13, 4, 1);call write~init~int(58, 13, 5, 1);call write~init~int(0, 13, 6, 1);call #Ultimate.allocInit(5, 14);call write~init~int(67, 14, 0, 1);call write~init~int(82, 14, 1, 1);call write~init~int(73, 14, 2, 1);call write~init~int(84, 14, 3, 1);call write~init~int(0, 14, 4, 1);call #Ultimate.allocInit(3, 15);call write~init~int(79, 15, 0, 1);call write~init~int(75, 15, 1, 1);call write~init~int(0, 15, 2, 1);call #Ultimate.allocInit(2, 16);call write~init~int(41, 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);~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0; 37#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret4#1, main_~retValue_acc~0#1, main_~tmp~0#1;havoc main_~retValue_acc~0#1;havoc main_~tmp~0#1;assume { :begin_inline_select_helpers } true; 71#L895true assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 20#L888true assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~11#1;havoc valid_product_~retValue_acc~11#1;valid_product_~retValue_acc~11#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~11#1; 86#L903true main_#t~ret4#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~0#1 := main_#t~ret4#1;havoc main_#t~ret4#1; 79#L149true assume 0 != main_~tmp~0#1;assume { :begin_inline_setup } true; 45#L122true assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet5#1, test_#t~nondet6#1, test_#t~nondet7#1, test_#t~nondet8#1, test_~splverifierCounter~0#1, test_~tmp~1#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~1#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 62#L175-2true [2022-02-21 04:15:10,684 INFO L793 eck$LassoCheckResult]: Loop: 62#L175-2true assume !false; 40#L176true assume test_~splverifierCounter~0#1 < 4; 50#L177true test_~tmp~1#1 := test_#t~nondet5#1;havoc test_#t~nondet5#1; 83#L185true assume !(0 != test_~tmp~1#1); 42#L185-2true test_~tmp___0~0#1 := test_#t~nondet6#1;havoc test_#t~nondet6#1; 87#L195true assume !(0 != test_~tmp___0~0#1); 63#L195-2true test_~tmp___2~0#1 := test_#t~nondet7#1;havoc test_#t~nondet7#1; 66#L205true assume !(0 != test_~tmp___2~0#1);test_~tmp___1~0#1 := test_#t~nondet8#1;havoc test_#t~nondet8#1; 106#L213true assume !(0 != test_~tmp___1~0#1); 11#L213-2true assume { :begin_inline_timeShift } true; 7#L249true assume !(0 != ~pumpRunning~0); 24#L249-2true assume !(0 != ~systemActive~0); 59#L256-1true assume { :begin_inline___utac_acc__Specification1_spec__1 } true;havoc __utac_acc__Specification1_spec__1_#t~ret49#1, __utac_acc__Specification1_spec__1_#t~ret50#1, __utac_acc__Specification1_spec__1_~tmp~7#1, __utac_acc__Specification1_spec__1_~tmp___0~2#1;havoc __utac_acc__Specification1_spec__1_~tmp~7#1;havoc __utac_acc__Specification1_spec__1_~tmp___0~2#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~4#1;havoc isMethaneLevelCritical_~retValue_acc~4#1;isMethaneLevelCritical_~retValue_acc~4#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~4#1; 6#L461true __utac_acc__Specification1_spec__1_#t~ret49#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification1_spec__1_~tmp~7#1 := __utac_acc__Specification1_spec__1_#t~ret49#1;havoc __utac_acc__Specification1_spec__1_#t~ret49#1; 94#L916true assume !(0 != __utac_acc__Specification1_spec__1_~tmp~7#1); 65#L916-1true assume { :end_inline___utac_acc__Specification1_spec__1 } true; 12#L266true assume { :end_inline_timeShift } true; 62#L175-2true [2022-02-21 04:15:10,688 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:15:10,688 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 1 times [2022-02-21 04:15:10,695 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:15:10,695 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [272992507] [2022-02-21 04:15:10,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:15:10,696 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:15:10,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:15:10,811 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:15:10,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:15:10,864 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:15:10,866 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:15:10,867 INFO L85 PathProgramCache]: Analyzing trace with hash 1380834287, now seen corresponding path program 1 times [2022-02-21 04:15:10,867 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:15:10,868 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1454228065] [2022-02-21 04:15:10,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:15:10,869 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:15:10,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:15:10,885 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:15:10,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:15:10,901 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:15:10,902 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:15:10,903 INFO L85 PathProgramCache]: Analyzing trace with hash 449152683, now seen corresponding path program 1 times [2022-02-21 04:15:10,904 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:15:10,904 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [653791308] [2022-02-21 04:15:10,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:15:10,905 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:15:10,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-21 04:15:11,045 INFO L290 TraceCheckUtils]: 0: Hoare triple {115#true} 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(3, 5);call write~init~int(79, 5, 0, 1);call write~init~int(110, 5, 1, 1);call write~init~int(0, 5, 2, 1);call #Ultimate.allocInit(4, 6);call write~init~int(79, 6, 0, 1);call write~init~int(102, 6, 1, 1);call write~init~int(102, 6, 2, 1);call write~init~int(0, 6, 3, 1);call #Ultimate.allocInit(7, 7);call write~init~int(44, 7, 0, 1);call write~init~int(80, 7, 1, 1);call write~init~int(117, 7, 2, 1);call write~init~int(109, 7, 3, 1);call write~init~int(112, 7, 4, 1);call write~init~int(58, 7, 5, 1);call write~init~int(0, 7, 6, 1);call #Ultimate.allocInit(3, 8);call write~init~int(79, 8, 0, 1);call write~init~int(110, 8, 1, 1);call write~init~int(0, 8, 2, 1);call #Ultimate.allocInit(4, 9);call write~init~int(79, 9, 0, 1);call write~init~int(102, 9, 1, 1);call write~init~int(102, 9, 2, 1);call write~init~int(0, 9, 3, 1);call #Ultimate.allocInit(3, 10);call write~init~int(41, 10, 0, 1);call write~init~int(32, 10, 1, 1);call write~init~int(0, 10, 2, 1);call #Ultimate.allocInit(2, 11);call write~init~int(10, 11, 0, 1);call write~init~int(0, 11, 1, 1);call #Ultimate.allocInit(13, 12);call #Ultimate.allocInit(7, 13);call write~init~int(44, 13, 0, 1);call write~init~int(77, 13, 1, 1);call write~init~int(101, 13, 2, 1);call write~init~int(116, 13, 3, 1);call write~init~int(104, 13, 4, 1);call write~init~int(58, 13, 5, 1);call write~init~int(0, 13, 6, 1);call #Ultimate.allocInit(5, 14);call write~init~int(67, 14, 0, 1);call write~init~int(82, 14, 1, 1);call write~init~int(73, 14, 2, 1);call write~init~int(84, 14, 3, 1);call write~init~int(0, 14, 4, 1);call #Ultimate.allocInit(3, 15);call write~init~int(79, 15, 0, 1);call write~init~int(75, 15, 1, 1);call write~init~int(0, 15, 2, 1);call #Ultimate.allocInit(2, 16);call write~init~int(41, 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);~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0; {117#(= 1 ~systemActive~0)} is VALID [2022-02-21 04:15:11,046 INFO L290 TraceCheckUtils]: 1: Hoare triple {117#(= 1 ~systemActive~0)} assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret4#1, main_~retValue_acc~0#1, main_~tmp~0#1;havoc main_~retValue_acc~0#1;havoc main_~tmp~0#1;assume { :begin_inline_select_helpers } true; {117#(= 1 ~systemActive~0)} is VALID [2022-02-21 04:15:11,046 INFO L290 TraceCheckUtils]: 2: Hoare triple {117#(= 1 ~systemActive~0)} assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; {117#(= 1 ~systemActive~0)} is VALID [2022-02-21 04:15:11,047 INFO L290 TraceCheckUtils]: 3: Hoare triple {117#(= 1 ~systemActive~0)} assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~11#1;havoc valid_product_~retValue_acc~11#1;valid_product_~retValue_acc~11#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~11#1; {118#(= |ULTIMATE.start_valid_product_#res#1| ~systemActive~0)} is VALID [2022-02-21 04:15:11,047 INFO L290 TraceCheckUtils]: 4: Hoare triple {118#(= |ULTIMATE.start_valid_product_#res#1| ~systemActive~0)} main_#t~ret4#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~0#1 := main_#t~ret4#1;havoc main_#t~ret4#1; {119#(= |ULTIMATE.start_main_~tmp~0#1| ~systemActive~0)} is VALID [2022-02-21 04:15:11,048 INFO L290 TraceCheckUtils]: 5: Hoare triple {119#(= |ULTIMATE.start_main_~tmp~0#1| ~systemActive~0)} assume 0 != main_~tmp~0#1;assume { :begin_inline_setup } true; {120#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:15:11,049 INFO L290 TraceCheckUtils]: 6: Hoare triple {120#(not (= 0 ~systemActive~0))} assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet5#1, test_#t~nondet6#1, test_#t~nondet7#1, test_#t~nondet8#1, test_~splverifierCounter~0#1, test_~tmp~1#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~1#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; {120#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:15:11,049 INFO L290 TraceCheckUtils]: 7: Hoare triple {120#(not (= 0 ~systemActive~0))} assume !false; {120#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:15:11,050 INFO L290 TraceCheckUtils]: 8: Hoare triple {120#(not (= 0 ~systemActive~0))} assume test_~splverifierCounter~0#1 < 4; {120#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:15:11,050 INFO L290 TraceCheckUtils]: 9: Hoare triple {120#(not (= 0 ~systemActive~0))} test_~tmp~1#1 := test_#t~nondet5#1;havoc test_#t~nondet5#1; {120#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:15:11,051 INFO L290 TraceCheckUtils]: 10: Hoare triple {120#(not (= 0 ~systemActive~0))} assume !(0 != test_~tmp~1#1); {120#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:15:11,051 INFO L290 TraceCheckUtils]: 11: Hoare triple {120#(not (= 0 ~systemActive~0))} test_~tmp___0~0#1 := test_#t~nondet6#1;havoc test_#t~nondet6#1; {120#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:15:11,052 INFO L290 TraceCheckUtils]: 12: Hoare triple {120#(not (= 0 ~systemActive~0))} assume !(0 != test_~tmp___0~0#1); {120#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:15:11,052 INFO L290 TraceCheckUtils]: 13: Hoare triple {120#(not (= 0 ~systemActive~0))} test_~tmp___2~0#1 := test_#t~nondet7#1;havoc test_#t~nondet7#1; {120#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:15:11,053 INFO L290 TraceCheckUtils]: 14: Hoare triple {120#(not (= 0 ~systemActive~0))} assume !(0 != test_~tmp___2~0#1);test_~tmp___1~0#1 := test_#t~nondet8#1;havoc test_#t~nondet8#1; {120#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:15:11,053 INFO L290 TraceCheckUtils]: 15: Hoare triple {120#(not (= 0 ~systemActive~0))} assume !(0 != test_~tmp___1~0#1); {120#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:15:11,053 INFO L290 TraceCheckUtils]: 16: Hoare triple {120#(not (= 0 ~systemActive~0))} assume { :begin_inline_timeShift } true; {120#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:15:11,054 INFO L290 TraceCheckUtils]: 17: Hoare triple {120#(not (= 0 ~systemActive~0))} assume !(0 != ~pumpRunning~0); {120#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:15:11,054 INFO L290 TraceCheckUtils]: 18: Hoare triple {120#(not (= 0 ~systemActive~0))} assume !(0 != ~systemActive~0); {116#false} is VALID [2022-02-21 04:15:11,054 INFO L290 TraceCheckUtils]: 19: Hoare triple {116#false} assume { :begin_inline___utac_acc__Specification1_spec__1 } true;havoc __utac_acc__Specification1_spec__1_#t~ret49#1, __utac_acc__Specification1_spec__1_#t~ret50#1, __utac_acc__Specification1_spec__1_~tmp~7#1, __utac_acc__Specification1_spec__1_~tmp___0~2#1;havoc __utac_acc__Specification1_spec__1_~tmp~7#1;havoc __utac_acc__Specification1_spec__1_~tmp___0~2#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~4#1;havoc isMethaneLevelCritical_~retValue_acc~4#1;isMethaneLevelCritical_~retValue_acc~4#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~4#1; {116#false} is VALID [2022-02-21 04:15:11,055 INFO L290 TraceCheckUtils]: 20: Hoare triple {116#false} __utac_acc__Specification1_spec__1_#t~ret49#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification1_spec__1_~tmp~7#1 := __utac_acc__Specification1_spec__1_#t~ret49#1;havoc __utac_acc__Specification1_spec__1_#t~ret49#1; {116#false} is VALID [2022-02-21 04:15:11,055 INFO L290 TraceCheckUtils]: 21: Hoare triple {116#false} assume !(0 != __utac_acc__Specification1_spec__1_~tmp~7#1); {116#false} is VALID [2022-02-21 04:15:11,055 INFO L290 TraceCheckUtils]: 22: Hoare triple {116#false} assume { :end_inline___utac_acc__Specification1_spec__1 } true; {116#false} is VALID [2022-02-21 04:15:11,055 INFO L290 TraceCheckUtils]: 23: Hoare triple {116#false} assume { :end_inline_timeShift } true; {116#false} is VALID [2022-02-21 04:15:11,057 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-21 04:15:11,057 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-21 04:15:11,058 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [653791308] [2022-02-21 04:15:11,058 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [653791308] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-21 04:15:11,058 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-21 04:15:11,058 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-21 04:15:11,059 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1537933995] [2022-02-21 04:15:11,060 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-21 04:15:11,182 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-21 04:15:11,200 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-02-21 04:15:11,201 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-02-21 04:15:11,205 INFO L87 Difference]: Start difference. First operand has 107 states, 106 states have (on average 1.3584905660377358) internal successors, (144), 106 states have internal predecessors, (144), 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) [2022-02-21 04:15:11,868 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:15:11,868 INFO L93 Difference]: Finished difference Result 360 states and 458 transitions. [2022-02-21 04:15:11,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-02-21 04:15:11,869 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 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) [2022-02-21 04:15:11,892 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 24 edges. 24 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-02-21 04:15:11,895 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 360 states and 458 transitions. [2022-02-21 04:15:11,916 INFO L131 ngComponentsAnalysis]: Automaton has 6 accepting balls. 232 [2022-02-21 04:15:11,929 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 360 states to 320 states and 418 transitions. [2022-02-21 04:15:11,929 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 320 [2022-02-21 04:15:11,932 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 320 [2022-02-21 04:15:11,933 INFO L73 IsDeterministic]: Start isDeterministic. Operand 320 states and 418 transitions. [2022-02-21 04:15:11,935 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-02-21 04:15:11,935 INFO L681 BuchiCegarLoop]: Abstraction has 320 states and 418 transitions. [2022-02-21 04:15:11,946 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 320 states and 418 transitions. [2022-02-21 04:15:11,965 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 320 to 146. [2022-02-21 04:15:11,965 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-02-21 04:15:11,970 INFO L82 GeneralOperation]: Start isEquivalent. First operand 320 states and 418 transitions. Second operand has 146 states, 146 states have (on average 1.3082191780821917) internal successors, (191), 145 states have internal predecessors, (191), 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) [2022-02-21 04:15:11,971 INFO L74 IsIncluded]: Start isIncluded. First operand 320 states and 418 transitions. Second operand has 146 states, 146 states have (on average 1.3082191780821917) internal successors, (191), 145 states have internal predecessors, (191), 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) [2022-02-21 04:15:11,975 INFO L87 Difference]: Start difference. First operand 320 states and 418 transitions. Second operand has 146 states, 146 states have (on average 1.3082191780821917) internal successors, (191), 145 states have internal predecessors, (191), 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) [2022-02-21 04:15:11,984 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:15:11,984 INFO L93 Difference]: Finished difference Result 320 states and 418 transitions. [2022-02-21 04:15:11,984 INFO L276 IsEmpty]: Start isEmpty. Operand 320 states and 418 transitions. [2022-02-21 04:15:11,990 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:15:11,990 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:15:11,991 INFO L74 IsIncluded]: Start isIncluded. First operand has 146 states, 146 states have (on average 1.3082191780821917) internal successors, (191), 145 states have internal predecessors, (191), 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 320 states and 418 transitions. [2022-02-21 04:15:11,991 INFO L87 Difference]: Start difference. First operand has 146 states, 146 states have (on average 1.3082191780821917) internal successors, (191), 145 states have internal predecessors, (191), 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 320 states and 418 transitions. [2022-02-21 04:15:11,999 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:15:11,999 INFO L93 Difference]: Finished difference Result 320 states and 418 transitions. [2022-02-21 04:15:11,999 INFO L276 IsEmpty]: Start isEmpty. Operand 320 states and 418 transitions. [2022-02-21 04:15:12,000 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:15:12,000 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:15:12,000 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-02-21 04:15:12,000 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-02-21 04:15:12,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 146 states, 146 states have (on average 1.3082191780821917) internal successors, (191), 145 states have internal predecessors, (191), 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) [2022-02-21 04:15:12,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 191 transitions. [2022-02-21 04:15:12,004 INFO L704 BuchiCegarLoop]: Abstraction has 146 states and 191 transitions. [2022-02-21 04:15:12,004 INFO L587 BuchiCegarLoop]: Abstraction has 146 states and 191 transitions. [2022-02-21 04:15:12,005 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2022-02-21 04:15:12,005 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 146 states and 191 transitions. [2022-02-21 04:15:12,006 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 105 [2022-02-21 04:15:12,006 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:15:12,006 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:15:12,007 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:15:12,007 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] [2022-02-21 04:15:12,008 INFO L791 eck$LassoCheckResult]: Stem: 572#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(3, 5);call write~init~int(79, 5, 0, 1);call write~init~int(110, 5, 1, 1);call write~init~int(0, 5, 2, 1);call #Ultimate.allocInit(4, 6);call write~init~int(79, 6, 0, 1);call write~init~int(102, 6, 1, 1);call write~init~int(102, 6, 2, 1);call write~init~int(0, 6, 3, 1);call #Ultimate.allocInit(7, 7);call write~init~int(44, 7, 0, 1);call write~init~int(80, 7, 1, 1);call write~init~int(117, 7, 2, 1);call write~init~int(109, 7, 3, 1);call write~init~int(112, 7, 4, 1);call write~init~int(58, 7, 5, 1);call write~init~int(0, 7, 6, 1);call #Ultimate.allocInit(3, 8);call write~init~int(79, 8, 0, 1);call write~init~int(110, 8, 1, 1);call write~init~int(0, 8, 2, 1);call #Ultimate.allocInit(4, 9);call write~init~int(79, 9, 0, 1);call write~init~int(102, 9, 1, 1);call write~init~int(102, 9, 2, 1);call write~init~int(0, 9, 3, 1);call #Ultimate.allocInit(3, 10);call write~init~int(41, 10, 0, 1);call write~init~int(32, 10, 1, 1);call write~init~int(0, 10, 2, 1);call #Ultimate.allocInit(2, 11);call write~init~int(10, 11, 0, 1);call write~init~int(0, 11, 1, 1);call #Ultimate.allocInit(13, 12);call #Ultimate.allocInit(7, 13);call write~init~int(44, 13, 0, 1);call write~init~int(77, 13, 1, 1);call write~init~int(101, 13, 2, 1);call write~init~int(116, 13, 3, 1);call write~init~int(104, 13, 4, 1);call write~init~int(58, 13, 5, 1);call write~init~int(0, 13, 6, 1);call #Ultimate.allocInit(5, 14);call write~init~int(67, 14, 0, 1);call write~init~int(82, 14, 1, 1);call write~init~int(73, 14, 2, 1);call write~init~int(84, 14, 3, 1);call write~init~int(0, 14, 4, 1);call #Ultimate.allocInit(3, 15);call write~init~int(79, 15, 0, 1);call write~init~int(75, 15, 1, 1);call write~init~int(0, 15, 2, 1);call #Ultimate.allocInit(2, 16);call write~init~int(41, 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);~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0; 564#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret4#1, main_~retValue_acc~0#1, main_~tmp~0#1;havoc main_~retValue_acc~0#1;havoc main_~tmp~0#1;assume { :begin_inline_select_helpers } true; 511#L895 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 512#L888 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~11#1;havoc valid_product_~retValue_acc~11#1;valid_product_~retValue_acc~11#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~11#1; 531#L903 main_#t~ret4#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~0#1 := main_#t~ret4#1;havoc main_#t~ret4#1; 539#L149 assume 0 != main_~tmp~0#1;assume { :begin_inline_setup } true; 540#L122 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet5#1, test_#t~nondet6#1, test_#t~nondet7#1, test_#t~nondet8#1, test_~splverifierCounter~0#1, test_~tmp~1#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~1#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 492#L175-2 [2022-02-21 04:15:12,008 INFO L793 eck$LassoCheckResult]: Loop: 492#L175-2 assume !false; 493#L176 assume test_~splverifierCounter~0#1 < 4; 566#L177 test_~tmp~1#1 := test_#t~nondet5#1;havoc test_#t~nondet5#1; 550#L185 assume !(0 != test_~tmp~1#1); 552#L185-2 test_~tmp___0~0#1 := test_#t~nondet6#1;havoc test_#t~nondet6#1; 562#L195 assume !(0 != test_~tmp___0~0#1); 494#L195-2 test_~tmp___2~0#1 := test_#t~nondet7#1;havoc test_#t~nondet7#1; 495#L205 assume !(0 != test_~tmp___2~0#1);test_~tmp___1~0#1 := test_#t~nondet8#1;havoc test_#t~nondet8#1; 501#L213 assume !(0 != test_~tmp___1~0#1); 516#L213-2 assume { :begin_inline_timeShift } true; 489#L249 assume !(0 != ~pumpRunning~0); 490#L249-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret9#1, processEnvironment_~tmp~2#1;havoc processEnvironment_~tmp~2#1; 524#L281 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true; 525#L273-1 assume { :end_inline_processEnvironment__wrappee__base } true; 543#L281-1 assume { :end_inline_processEnvironment } true; 544#L256-1 assume { :begin_inline___utac_acc__Specification1_spec__1 } true;havoc __utac_acc__Specification1_spec__1_#t~ret49#1, __utac_acc__Specification1_spec__1_#t~ret50#1, __utac_acc__Specification1_spec__1_~tmp~7#1, __utac_acc__Specification1_spec__1_~tmp___0~2#1;havoc __utac_acc__Specification1_spec__1_~tmp~7#1;havoc __utac_acc__Specification1_spec__1_~tmp___0~2#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~4#1;havoc isMethaneLevelCritical_~retValue_acc~4#1;isMethaneLevelCritical_~retValue_acc~4#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~4#1; 487#L461 __utac_acc__Specification1_spec__1_#t~ret49#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification1_spec__1_~tmp~7#1 := __utac_acc__Specification1_spec__1_#t~ret49#1;havoc __utac_acc__Specification1_spec__1_#t~ret49#1; 488#L916 assume !(0 != __utac_acc__Specification1_spec__1_~tmp~7#1); 499#L916-1 assume { :end_inline___utac_acc__Specification1_spec__1 } true; 500#L266 assume { :end_inline_timeShift } true; 492#L175-2 [2022-02-21 04:15:12,009 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:15:12,009 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 2 times [2022-02-21 04:15:12,009 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:15:12,009 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1798953729] [2022-02-21 04:15:12,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:15:12,010 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:15:12,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:15:12,023 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:15:12,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:15:12,033 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:15:12,034 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:15:12,034 INFO L85 PathProgramCache]: Analyzing trace with hash 171627365, now seen corresponding path program 1 times [2022-02-21 04:15:12,034 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:15:12,034 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1992992250] [2022-02-21 04:15:12,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:15:12,034 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:15:12,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:15:12,038 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:15:12,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:15:12,041 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:15:12,042 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:15:12,042 INFO L85 PathProgramCache]: Analyzing trace with hash -1476370647, now seen corresponding path program 1 times [2022-02-21 04:15:12,042 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:15:12,042 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1510415035] [2022-02-21 04:15:12,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:15:12,042 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:15:12,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:15:12,052 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:15:12,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:15:12,064 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:15:14,238 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 21.02 04:15:14 BoogieIcfgContainer [2022-02-21 04:15:14,238 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-02-21 04:15:14,239 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-02-21 04:15:14,255 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-02-21 04:15:14,255 INFO L275 PluginConnector]: Witness Printer initialized [2022-02-21 04:15:14,256 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 04:15:10" (3/4) ... [2022-02-21 04:15:14,258 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2022-02-21 04:15:14,326 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-02-21 04:15:14,339 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-02-21 04:15:14,341 INFO L158 Benchmark]: Toolchain (without parser) took 4920.07ms. Allocated memory was 98.6MB in the beginning and 190.8MB in the end (delta: 92.3MB). Free memory was 56.8MB in the beginning and 82.1MB in the end (delta: -25.3MB). Peak memory consumption was 68.4MB. Max. memory is 16.1GB. [2022-02-21 04:15:14,342 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 98.6MB. Free memory is still 74.3MB. There was no memory consumed. Max. memory is 16.1GB. [2022-02-21 04:15:14,342 INFO L158 Benchmark]: CACSL2BoogieTranslator took 589.76ms. Allocated memory was 98.6MB in the beginning and 140.5MB in the end (delta: 41.9MB). Free memory was 56.6MB in the beginning and 103.4MB in the end (delta: -46.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-02-21 04:15:14,343 INFO L158 Benchmark]: Boogie Procedure Inliner took 59.01ms. Allocated memory is still 140.5MB. Free memory was 103.4MB in the beginning and 100.2MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-02-21 04:15:14,343 INFO L158 Benchmark]: Boogie Preprocessor took 35.74ms. Allocated memory is still 140.5MB. Free memory was 100.2MB in the beginning and 98.6MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2022-02-21 04:15:14,343 INFO L158 Benchmark]: RCFGBuilder took 462.28ms. Allocated memory is still 140.5MB. Free memory was 98.6MB in the beginning and 102.4MB in the end (delta: -3.8MB). Peak memory consumption was 10.9MB. Max. memory is 16.1GB. [2022-02-21 04:15:14,343 INFO L158 Benchmark]: BuchiAutomizer took 3667.35ms. Allocated memory was 140.5MB in the beginning and 190.8MB in the end (delta: 50.3MB). Free memory was 101.9MB in the beginning and 84.2MB in the end (delta: 17.7MB). Peak memory consumption was 100.5MB. Max. memory is 16.1GB. [2022-02-21 04:15:14,344 INFO L158 Benchmark]: Witness Printer took 101.16ms. Allocated memory is still 190.8MB. Free memory was 84.2MB in the beginning and 82.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-02-21 04:15:14,345 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - AssertionsEnabledResult: Assertions are enabled Assertions are enabled - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20ms. Allocated memory is still 98.6MB. Free memory is still 74.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 589.76ms. Allocated memory was 98.6MB in the beginning and 140.5MB in the end (delta: 41.9MB). Free memory was 56.6MB in the beginning and 103.4MB in the end (delta: -46.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 59.01ms. Allocated memory is still 140.5MB. Free memory was 103.4MB in the beginning and 100.2MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 35.74ms. Allocated memory is still 140.5MB. Free memory was 100.2MB in the beginning and 98.6MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 462.28ms. Allocated memory is still 140.5MB. Free memory was 98.6MB in the beginning and 102.4MB in the end (delta: -3.8MB). Peak memory consumption was 10.9MB. Max. memory is 16.1GB. * BuchiAutomizer took 3667.35ms. Allocated memory was 140.5MB in the beginning and 190.8MB in the end (delta: 50.3MB). Free memory was 101.9MB in the beginning and 84.2MB in the end (delta: 17.7MB). Peak memory consumption was 100.5MB. Max. memory is 16.1GB. * Witness Printer took 101.16ms. Allocated memory is still 190.8MB. Free memory was 84.2MB in the beginning and 82.1MB in the end (delta: 2.1MB). 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 1 terminating modules (1 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.1 modules have a trivial ranking function, the largest among these consists of 6 locations. The remainder module has 146 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 3.5s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 2.6s. Construction of modules took 0.0s. Büchi inclusion checks took 0.6s. Highest rank in rank-based complementation 0. Minimization of det autom 1. Minimization of nondet autom 0. Automata minimization 0.1s AutomataMinimizationTime, 1 MinimizatonAttempts, 174 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 146 states and ocurred in iteration 1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 712 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 712 mSDsluCounter, 936 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 808 mSDsCounter, 15 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 48 IncrementalHoareTripleChecker+Invalid, 63 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 15 mSolverCounterUnsat, 128 mSDtfsCounter, 48 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI0 SFLT0 conc1 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 175]: 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, NULL=0, head=0, pumpRunning=0, retValue_acc=0, tmp___0=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@326bde9=0, NULL=1, tmp___0=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6a6d2de5=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@22e77be0=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2c224d44=0, methaneLevelCritical=0, retValue_acc=1, retValue_acc=0, \result=0, \result=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@201a5ddd=0, tmp___2=0, tmp=0, cleanupTimeShifts=4, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@25471af9=0, tmp=1, \result=0, tmp=0, head=0, tmp___1=0, NULL=0, waterLevel=1, systemActive=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@103934e8=0, tmp=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7734582e=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 175]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L59] int cleanupTimeShifts = 4; [L241] int pumpRunning = 0; [L242] int systemActive = 1; [L418] int waterLevel = 1; [L419] int methaneLevelCritical = 0; [L676] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L140] int retValue_acc ; [L141] int tmp ; [L145] FCALL select_helpers() [L146] FCALL select_features() [L147] CALL, EXPR valid_product() [L899] int retValue_acc ; [L902] retValue_acc = 1 [L903] return (retValue_acc); [L147] RET, EXPR valid_product() [L147] tmp = valid_product() [L149] COND TRUE \read(tmp) [L151] FCALL setup() [L152] CALL runTest() [L131] CALL test() [L166] int splverifierCounter ; [L167] int tmp ; [L168] int tmp___0 ; [L169] int tmp___1 ; [L170] int tmp___2 ; [L173] splverifierCounter = 0 Loop: [L175] COND TRUE 1 [L177] COND TRUE splverifierCounter < 4 [L183] tmp = __VERIFIER_nondet_int() [L185] COND FALSE !(\read(tmp)) [L193] tmp___0 = __VERIFIER_nondet_int() [L195] COND FALSE !(\read(tmp___0)) [L203] tmp___2 = __VERIFIER_nondet_int() [L205] COND FALSE !(\read(tmp___2)) [L211] tmp___1 = __VERIFIER_nondet_int() [L213] COND FALSE !(\read(tmp___1)) [L222] CALL timeShift() [L249] COND FALSE !(\read(pumpRunning)) [L256] COND TRUE \read(systemActive) [L258] CALL processEnvironment() [L278] int tmp ; [L281] COND FALSE !(\read(pumpRunning)) [L296] FCALL processEnvironment__wrappee__base() [L258] RET processEnvironment() [L264] CALL __utac_acc__Specification1_spec__1() [L909] int tmp ; [L910] int tmp___0 ; [L914] CALL, EXPR isMethaneLevelCritical() [L457] int retValue_acc ; [L460] retValue_acc = methaneLevelCritical [L461] return (retValue_acc); [L914] RET, EXPR isMethaneLevelCritical() [L914] tmp = isMethaneLevelCritical() [L916] COND FALSE !(\read(tmp)) [L264] RET __utac_acc__Specification1_spec__1() [L222] RET timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2022-02-21 04:15:14,400 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- 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)