./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/minepump_spec1_product60.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_product60.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 0fa225959be52b1defd5d055d32ae3a8dd944c37a01adb589e2f547028e60f67 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-03d7b7b [2022-02-21 04:15:43,559 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-21 04:15:43,561 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-21 04:15:43,596 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-02-21 04:15:43,596 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-02-21 04:15:43,597 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-02-21 04:15:43,598 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-02-21 04:15:43,599 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-02-21 04:15:43,600 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-02-21 04:15:43,601 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-02-21 04:15:43,601 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-02-21 04:15:43,602 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-02-21 04:15:43,602 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-21 04:15:43,603 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-21 04:15:43,604 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-21 04:15:43,605 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-21 04:15:43,605 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-21 04:15:43,606 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-21 04:15:43,607 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-21 04:15:43,610 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-21 04:15:43,619 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-21 04:15:43,620 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-21 04:15:43,621 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-21 04:15:43,622 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-21 04:15:43,625 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-02-21 04:15:43,629 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-02-21 04:15:43,629 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-02-21 04:15:43,630 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-02-21 04:15:43,631 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-02-21 04:15:43,631 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-02-21 04:15:43,632 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-02-21 04:15:43,633 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-02-21 04:15:43,633 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-02-21 04:15:43,634 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-02-21 04:15:43,635 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-02-21 04:15:43,635 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-02-21 04:15:43,636 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-02-21 04:15:43,636 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-02-21 04:15:43,637 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-21 04:15:43,637 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-21 04:15:43,638 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-21 04:15:43,642 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2022-02-21 04:15:43,672 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-21 04:15:43,672 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-21 04:15:43,673 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-02-21 04:15:43,673 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-02-21 04:15:43,674 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-02-21 04:15:43,674 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-02-21 04:15:43,674 INFO L138 SettingsManager]: * Use SBE=true [2022-02-21 04:15:43,674 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-02-21 04:15:43,675 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-02-21 04:15:43,675 INFO L138 SettingsManager]: * Use old map elimination=false [2022-02-21 04:15:43,675 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-02-21 04:15:43,675 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-02-21 04:15:43,675 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-02-21 04:15:43,676 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-21 04:15:43,676 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-21 04:15:43,676 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-02-21 04:15:43,676 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-21 04:15:43,676 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-21 04:15:43,677 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-21 04:15:43,677 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-02-21 04:15:43,677 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-02-21 04:15:43,677 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-02-21 04:15:43,677 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-21 04:15:43,678 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-21 04:15:43,678 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-02-21 04:15:43,678 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-21 04:15:43,678 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-02-21 04:15:43,678 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-21 04:15:43,679 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-21 04:15:43,679 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-21 04:15:43,679 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-02-21 04:15:43,680 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-02-21 04:15:43,680 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0fa225959be52b1defd5d055d32ae3a8dd944c37a01adb589e2f547028e60f67 [2022-02-21 04:15:43,920 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-21 04:15:43,937 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-21 04:15:43,939 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-21 04:15:43,940 INFO L271 PluginConnector]: Initializing CDTParser... [2022-02-21 04:15:43,941 INFO L275 PluginConnector]: CDTParser initialized [2022-02-21 04:15:43,942 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec1_product60.cil.c [2022-02-21 04:15:43,992 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2b59d4393/ff84739f336442d7bad95c25fd5402f4/FLAGe5e05a394 [2022-02-21 04:15:44,442 INFO L306 CDTParser]: Found 1 translation units. [2022-02-21 04:15:44,442 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec1_product60.cil.c [2022-02-21 04:15:44,459 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2b59d4393/ff84739f336442d7bad95c25fd5402f4/FLAGe5e05a394 [2022-02-21 04:15:44,473 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2b59d4393/ff84739f336442d7bad95c25fd5402f4 [2022-02-21 04:15:44,475 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-21 04:15:44,490 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-02-21 04:15:44,492 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-02-21 04:15:44,492 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-02-21 04:15:44,494 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-02-21 04:15:44,495 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.02 04:15:44" (1/1) ... [2022-02-21 04:15:44,496 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6d73ac0e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:15:44, skipping insertion in model container [2022-02-21 04:15:44,496 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.02 04:15:44" (1/1) ... [2022-02-21 04:15:44,502 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-02-21 04:15:44,543 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-02-21 04:15:44,766 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_product60.cil.c[14569,14582] [2022-02-21 04:15:44,782 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-21 04:15:44,801 INFO L203 MainTranslator]: Completed pre-run [2022-02-21 04:15:44,882 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_product60.cil.c[14569,14582] [2022-02-21 04:15:44,891 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-21 04:15:44,918 INFO L208 MainTranslator]: Completed translation [2022-02-21 04:15:44,918 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:15:44 WrapperNode [2022-02-21 04:15:44,918 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-02-21 04:15:44,919 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-02-21 04:15:44,919 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-02-21 04:15:44,919 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-02-21 04:15:44,925 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:15:44" (1/1) ... [2022-02-21 04:15:44,946 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:15:44" (1/1) ... [2022-02-21 04:15:45,014 INFO L137 Inliner]: procedures = 58, calls = 159, calls flagged for inlining = 56, calls inlined = 98, statements flattened = 735 [2022-02-21 04:15:45,015 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-02-21 04:15:45,016 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-21 04:15:45,016 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-21 04:15:45,017 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-21 04:15:45,024 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:15:44" (1/1) ... [2022-02-21 04:15:45,024 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:15:44" (1/1) ... [2022-02-21 04:15:45,028 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:15:44" (1/1) ... [2022-02-21 04:15:45,029 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:15:44" (1/1) ... [2022-02-21 04:15:45,044 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:15:44" (1/1) ... [2022-02-21 04:15:45,056 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:15:44" (1/1) ... [2022-02-21 04:15:45,058 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:15:44" (1/1) ... [2022-02-21 04:15:45,076 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-21 04:15:45,077 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-21 04:15:45,077 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-21 04:15:45,077 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-21 04:15:45,078 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:15:44" (1/1) ... [2022-02-21 04:15:45,084 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-02-21 04:15:45,105 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-21 04:15:45,125 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 04:15:45,132 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 04:15:45,165 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-02-21 04:15:45,165 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-02-21 04:15:45,165 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-21 04:15:45,165 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-21 04:15:45,250 INFO L234 CfgBuilder]: Building ICFG [2022-02-21 04:15:45,251 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-21 04:15:45,734 INFO L275 CfgBuilder]: Performing block encoding [2022-02-21 04:15:45,742 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-21 04:15:45,742 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-02-21 04:15:45,744 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 04:15:45 BoogieIcfgContainer [2022-02-21 04:15:45,744 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-21 04:15:45,745 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-02-21 04:15:45,745 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-02-21 04:15:45,749 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-02-21 04:15:45,750 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-02-21 04:15:45,750 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 21.02 04:15:44" (1/3) ... [2022-02-21 04:15:45,751 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5067d831 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.02 04:15:45, skipping insertion in model container [2022-02-21 04:15:45,751 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-02-21 04:15:45,751 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:15:44" (2/3) ... [2022-02-21 04:15:45,751 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5067d831 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.02 04:15:45, skipping insertion in model container [2022-02-21 04:15:45,752 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-02-21 04:15:45,752 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 04:15:45" (3/3) ... [2022-02-21 04:15:45,753 INFO L388 chiAutomizerObserver]: Analyzing ICFG minepump_spec1_product60.cil.c [2022-02-21 04:15:45,787 INFO L359 BuchiCegarLoop]: Interprodecural is true [2022-02-21 04:15:45,788 INFO L360 BuchiCegarLoop]: Hoare is false [2022-02-21 04:15:45,788 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-02-21 04:15:45,788 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-02-21 04:15:45,788 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-02-21 04:15:45,788 INFO L364 BuchiCegarLoop]: Difference is false [2022-02-21 04:15:45,788 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-02-21 04:15:45,788 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2022-02-21 04:15:45,808 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) [2022-02-21 04:15:45,855 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 125 [2022-02-21 04:15:45,855 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:15:45,855 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:15:45,860 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:15:45,860 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 04:15:45,860 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2022-02-21 04:15:45,863 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) [2022-02-21 04:15:45,876 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 125 [2022-02-21 04:15:45,877 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:15:45,877 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:15:45,878 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:15:45,878 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 04:15:45,881 INFO L791 eck$LassoCheckResult]: Stem: 170#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(30, 9);call #Ultimate.allocInit(9, 10);call #Ultimate.allocInit(21, 11);call #Ultimate.allocInit(30, 12);call #Ultimate.allocInit(9, 13);call #Ultimate.allocInit(21, 14);call #Ultimate.allocInit(30, 15);call #Ultimate.allocInit(9, 16);call #Ultimate.allocInit(25, 17);call #Ultimate.allocInit(30, 18);call #Ultimate.allocInit(9, 19);call #Ultimate.allocInit(25, 20);call #Ultimate.allocInit(13, 21);call #Ultimate.allocInit(3, 22);call write~init~int(79, 22, 0, 1);call write~init~int(110, 22, 1, 1);call write~init~int(0, 22, 2, 1);call #Ultimate.allocInit(4, 23);call write~init~int(79, 23, 0, 1);call write~init~int(102, 23, 1, 1);call write~init~int(102, 23, 2, 1);call write~init~int(0, 23, 3, 1);call #Ultimate.allocInit(7, 24);call write~init~int(44, 24, 0, 1);call write~init~int(80, 24, 1, 1);call write~init~int(117, 24, 2, 1);call write~init~int(109, 24, 3, 1);call write~init~int(112, 24, 4, 1);call write~init~int(58, 24, 5, 1);call write~init~int(0, 24, 6, 1);call #Ultimate.allocInit(3, 25);call write~init~int(79, 25, 0, 1);call write~init~int(110, 25, 1, 1);call write~init~int(0, 25, 2, 1);call #Ultimate.allocInit(4, 26);call write~init~int(79, 26, 0, 1);call write~init~int(102, 26, 1, 1);call write~init~int(102, 26, 2, 1);call write~init~int(0, 26, 3, 1);call #Ultimate.allocInit(3, 27);call write~init~int(41, 27, 0, 1);call write~init~int(32, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(10, 28, 0, 1);call write~init~int(0, 28, 1, 1);~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1; 53#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; 165#L999true assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 90#L992true assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~13#1;havoc valid_product_~retValue_acc~13#1;valid_product_~retValue_acc~13#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~13#1; 113#L1007true 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; 75#L140true assume 0 != main_~tmp~0#1;assume { :begin_inline_setup } true; 158#L113true assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet35#1, test_#t~nondet36#1, test_#t~nondet37#1, test_#t~nondet38#1, test_~splverifierCounter~0#1, test_~tmp~5#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~5#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 29#L678-2true [2022-02-21 04:15:45,882 INFO L793 eck$LassoCheckResult]: Loop: 29#L678-2true assume !false; 141#L679true assume test_~splverifierCounter~0#1 < 4; 177#L680true test_~tmp~5#1 := test_#t~nondet35#1;havoc test_#t~nondet35#1; 139#L688true assume !(0 != test_~tmp~5#1); 27#L688-2true test_~tmp___0~1#1 := test_#t~nondet36#1;havoc test_#t~nondet36#1; 135#L698true assume !(0 != test_~tmp___0~1#1); 166#L698-2true test_~tmp___2~0#1 := test_#t~nondet37#1;havoc test_#t~nondet37#1; 13#L708true assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 91#L973true assume { :end_inline_startSystem } true; 145#L716-2true assume { :begin_inline_timeShift } true; 126#L746true assume !(0 != ~pumpRunning~0); 120#L746-2true assume !(0 != ~systemActive~0); 148#L753-1true assume { :begin_inline___utac_acc__Specification1_spec__1 } true;havoc __utac_acc__Specification1_spec__1_#t~ret10#1, __utac_acc__Specification1_spec__1_#t~ret11#1, __utac_acc__Specification1_spec__1_~tmp~1#1, __utac_acc__Specification1_spec__1_~tmp___0~0#1;havoc __utac_acc__Specification1_spec__1_~tmp~1#1;havoc __utac_acc__Specification1_spec__1_~tmp___0~0#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~1#1;havoc isMethaneLevelCritical_~retValue_acc~1#1;isMethaneLevelCritical_~retValue_acc~1#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~1#1; 94#L203-2true __utac_acc__Specification1_spec__1_#t~ret10#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification1_spec__1_~tmp~1#1 := __utac_acc__Specification1_spec__1_#t~ret10#1;havoc __utac_acc__Specification1_spec__1_#t~ret10#1; 81#L273true assume !(0 != __utac_acc__Specification1_spec__1_~tmp~1#1); 78#L273-1true assume { :end_inline___utac_acc__Specification1_spec__1 } true; 97#L763true assume { :end_inline_timeShift } true; 29#L678-2true [2022-02-21 04:15:45,886 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:15:45,887 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 1 times [2022-02-21 04:15:45,893 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:15:45,893 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1392087448] [2022-02-21 04:15:45,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:15:45,894 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:15:46,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:15:46,007 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:15:46,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:15:46,057 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:15:46,068 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:15:46,068 INFO L85 PathProgramCache]: Analyzing trace with hash -1231959071, now seen corresponding path program 1 times [2022-02-21 04:15:46,068 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:15:46,069 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1531445103] [2022-02-21 04:15:46,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:15:46,069 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:15:46,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-21 04:15:46,153 INFO L290 TraceCheckUtils]: 0: Hoare triple {197#true} assume !false; {197#true} is VALID [2022-02-21 04:15:46,153 INFO L290 TraceCheckUtils]: 1: Hoare triple {197#true} assume test_~splverifierCounter~0#1 < 4; {197#true} is VALID [2022-02-21 04:15:46,153 INFO L290 TraceCheckUtils]: 2: Hoare triple {197#true} test_~tmp~5#1 := test_#t~nondet35#1;havoc test_#t~nondet35#1; {197#true} is VALID [2022-02-21 04:15:46,153 INFO L290 TraceCheckUtils]: 3: Hoare triple {197#true} assume !(0 != test_~tmp~5#1); {197#true} is VALID [2022-02-21 04:15:46,154 INFO L290 TraceCheckUtils]: 4: Hoare triple {197#true} test_~tmp___0~1#1 := test_#t~nondet36#1;havoc test_#t~nondet36#1; {197#true} is VALID [2022-02-21 04:15:46,154 INFO L290 TraceCheckUtils]: 5: Hoare triple {197#true} assume !(0 != test_~tmp___0~1#1); {197#true} is VALID [2022-02-21 04:15:46,154 INFO L290 TraceCheckUtils]: 6: Hoare triple {197#true} test_~tmp___2~0#1 := test_#t~nondet37#1;havoc test_#t~nondet37#1; {197#true} is VALID [2022-02-21 04:15:46,155 INFO L290 TraceCheckUtils]: 7: Hoare triple {197#true} assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; {199#(<= 1 ~systemActive~0)} is VALID [2022-02-21 04:15:46,155 INFO L290 TraceCheckUtils]: 8: Hoare triple {199#(<= 1 ~systemActive~0)} assume { :end_inline_startSystem } true; {199#(<= 1 ~systemActive~0)} is VALID [2022-02-21 04:15:46,156 INFO L290 TraceCheckUtils]: 9: Hoare triple {199#(<= 1 ~systemActive~0)} assume { :begin_inline_timeShift } true; {199#(<= 1 ~systemActive~0)} is VALID [2022-02-21 04:15:46,156 INFO L290 TraceCheckUtils]: 10: Hoare triple {199#(<= 1 ~systemActive~0)} assume !(0 != ~pumpRunning~0); {199#(<= 1 ~systemActive~0)} is VALID [2022-02-21 04:15:46,157 INFO L290 TraceCheckUtils]: 11: Hoare triple {199#(<= 1 ~systemActive~0)} assume !(0 != ~systemActive~0); {198#false} is VALID [2022-02-21 04:15:46,157 INFO L290 TraceCheckUtils]: 12: Hoare triple {198#false} assume { :begin_inline___utac_acc__Specification1_spec__1 } true;havoc __utac_acc__Specification1_spec__1_#t~ret10#1, __utac_acc__Specification1_spec__1_#t~ret11#1, __utac_acc__Specification1_spec__1_~tmp~1#1, __utac_acc__Specification1_spec__1_~tmp___0~0#1;havoc __utac_acc__Specification1_spec__1_~tmp~1#1;havoc __utac_acc__Specification1_spec__1_~tmp___0~0#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~1#1;havoc isMethaneLevelCritical_~retValue_acc~1#1;isMethaneLevelCritical_~retValue_acc~1#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~1#1; {198#false} is VALID [2022-02-21 04:15:46,157 INFO L290 TraceCheckUtils]: 13: Hoare triple {198#false} __utac_acc__Specification1_spec__1_#t~ret10#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification1_spec__1_~tmp~1#1 := __utac_acc__Specification1_spec__1_#t~ret10#1;havoc __utac_acc__Specification1_spec__1_#t~ret10#1; {198#false} is VALID [2022-02-21 04:15:46,157 INFO L290 TraceCheckUtils]: 14: Hoare triple {198#false} assume !(0 != __utac_acc__Specification1_spec__1_~tmp~1#1); {198#false} is VALID [2022-02-21 04:15:46,158 INFO L290 TraceCheckUtils]: 15: Hoare triple {198#false} assume { :end_inline___utac_acc__Specification1_spec__1 } true; {198#false} is VALID [2022-02-21 04:15:46,158 INFO L290 TraceCheckUtils]: 16: Hoare triple {198#false} assume { :end_inline_timeShift } true; {198#false} is VALID [2022-02-21 04:15:46,159 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 04:15:46,159 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-21 04:15:46,160 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1531445103] [2022-02-21 04:15:46,160 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1531445103] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-21 04:15:46,160 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-21 04:15:46,160 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-02-21 04:15:46,161 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [220838203] [2022-02-21 04:15:46,162 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-21 04:15:46,165 INFO L808 eck$LassoCheckResult]: loop already infeasible [2022-02-21 04:15:46,165 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-21 04:15:46,201 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-02-21 04:15:46,202 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-21 04:15:46,208 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 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 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 04:15:46,631 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:15:46,631 INFO L93 Difference]: Finished difference Result 367 states and 483 transitions. [2022-02-21 04:15:46,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-21 04:15:46,633 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 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 04:15:46,647 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 17 edges. 17 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-02-21 04:15:46,652 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 367 states and 483 transitions. [2022-02-21 04:15:46,680 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 240 [2022-02-21 04:15:46,696 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 367 states to 347 states and 462 transitions. [2022-02-21 04:15:46,697 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 347 [2022-02-21 04:15:46,699 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 347 [2022-02-21 04:15:46,699 INFO L73 IsDeterministic]: Start isDeterministic. Operand 347 states and 462 transitions. [2022-02-21 04:15:46,702 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-02-21 04:15:46,703 INFO L681 BuchiCegarLoop]: Abstraction has 347 states and 462 transitions. [2022-02-21 04:15:46,719 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 347 states and 462 transitions. [2022-02-21 04:15:46,747 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 347 to 344. [2022-02-21 04:15:46,748 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-02-21 04:15:46,750 INFO L82 GeneralOperation]: Start isEquivalent. First operand 347 states and 462 transitions. Second operand has 344 states, 344 states have (on average 1.3313953488372092) internal successors, (458), 343 states have internal predecessors, (458), 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 04:15:46,752 INFO L74 IsIncluded]: Start isIncluded. First operand 347 states and 462 transitions. Second operand has 344 states, 344 states have (on average 1.3313953488372092) internal successors, (458), 343 states have internal predecessors, (458), 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 04:15:46,754 INFO L87 Difference]: Start difference. First operand 347 states and 462 transitions. Second operand has 344 states, 344 states have (on average 1.3313953488372092) internal successors, (458), 343 states have internal predecessors, (458), 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 04:15:46,779 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:15:46,779 INFO L93 Difference]: Finished difference Result 347 states and 462 transitions. [2022-02-21 04:15:46,780 INFO L276 IsEmpty]: Start isEmpty. Operand 347 states and 462 transitions. [2022-02-21 04:15:46,789 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:15:46,790 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:15:46,792 INFO L74 IsIncluded]: Start isIncluded. First operand has 344 states, 344 states have (on average 1.3313953488372092) internal successors, (458), 343 states have internal predecessors, (458), 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 347 states and 462 transitions. [2022-02-21 04:15:46,797 INFO L87 Difference]: Start difference. First operand has 344 states, 344 states have (on average 1.3313953488372092) internal successors, (458), 343 states have internal predecessors, (458), 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 347 states and 462 transitions. [2022-02-21 04:15:46,808 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:15:46,808 INFO L93 Difference]: Finished difference Result 347 states and 462 transitions. [2022-02-21 04:15:46,809 INFO L276 IsEmpty]: Start isEmpty. Operand 347 states and 462 transitions. [2022-02-21 04:15:46,811 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:15:46,811 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:15:46,811 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-02-21 04:15:46,812 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-02-21 04:15:46,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 344 states, 344 states have (on average 1.3313953488372092) internal successors, (458), 343 states have internal predecessors, (458), 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 04:15:46,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 344 states to 344 states and 458 transitions. [2022-02-21 04:15:46,828 INFO L704 BuchiCegarLoop]: Abstraction has 344 states and 458 transitions. [2022-02-21 04:15:46,828 INFO L587 BuchiCegarLoop]: Abstraction has 344 states and 458 transitions. [2022-02-21 04:15:46,828 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2022-02-21 04:15:46,828 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 344 states and 458 transitions. [2022-02-21 04:15:46,830 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 237 [2022-02-21 04:15:46,831 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:15:46,831 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:15:46,831 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:15:46,832 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] [2022-02-21 04:15:46,832 INFO L791 eck$LassoCheckResult]: Stem: 772#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(30, 9);call #Ultimate.allocInit(9, 10);call #Ultimate.allocInit(21, 11);call #Ultimate.allocInit(30, 12);call #Ultimate.allocInit(9, 13);call #Ultimate.allocInit(21, 14);call #Ultimate.allocInit(30, 15);call #Ultimate.allocInit(9, 16);call #Ultimate.allocInit(25, 17);call #Ultimate.allocInit(30, 18);call #Ultimate.allocInit(9, 19);call #Ultimate.allocInit(25, 20);call #Ultimate.allocInit(13, 21);call #Ultimate.allocInit(3, 22);call write~init~int(79, 22, 0, 1);call write~init~int(110, 22, 1, 1);call write~init~int(0, 22, 2, 1);call #Ultimate.allocInit(4, 23);call write~init~int(79, 23, 0, 1);call write~init~int(102, 23, 1, 1);call write~init~int(102, 23, 2, 1);call write~init~int(0, 23, 3, 1);call #Ultimate.allocInit(7, 24);call write~init~int(44, 24, 0, 1);call write~init~int(80, 24, 1, 1);call write~init~int(117, 24, 2, 1);call write~init~int(109, 24, 3, 1);call write~init~int(112, 24, 4, 1);call write~init~int(58, 24, 5, 1);call write~init~int(0, 24, 6, 1);call #Ultimate.allocInit(3, 25);call write~init~int(79, 25, 0, 1);call write~init~int(110, 25, 1, 1);call write~init~int(0, 25, 2, 1);call #Ultimate.allocInit(4, 26);call write~init~int(79, 26, 0, 1);call write~init~int(102, 26, 1, 1);call write~init~int(102, 26, 2, 1);call write~init~int(0, 26, 3, 1);call #Ultimate.allocInit(3, 27);call write~init~int(41, 27, 0, 1);call write~init~int(32, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(10, 28, 0, 1);call write~init~int(0, 28, 1, 1);~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1; 658#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; 659#L999 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 706#L992 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~13#1;havoc valid_product_~retValue_acc~13#1;valid_product_~retValue_acc~13#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~13#1; 707#L1007 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; 685#L140 assume 0 != main_~tmp~0#1;assume { :begin_inline_setup } true; 686#L113 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet35#1, test_#t~nondet36#1, test_#t~nondet37#1, test_#t~nondet38#1, test_~splverifierCounter~0#1, test_~tmp~5#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~5#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 618#L678-2 [2022-02-21 04:15:46,832 INFO L793 eck$LassoCheckResult]: Loop: 618#L678-2 assume !false; 619#L679 assume test_~splverifierCounter~0#1 < 4; 751#L680 test_~tmp~5#1 := test_#t~nondet35#1;havoc test_#t~nondet35#1; 794#L688 assume !(0 != test_~tmp~5#1); 792#L688-2 test_~tmp___0~1#1 := test_#t~nondet36#1;havoc test_#t~nondet36#1; 791#L698 assume !(0 != test_~tmp___0~1#1); 770#L698-2 test_~tmp___2~0#1 := test_#t~nondet37#1;havoc test_#t~nondet37#1; 586#L708 assume !(0 != test_~tmp___2~0#1);test_~tmp___1~0#1 := test_#t~nondet38#1;havoc test_#t~nondet38#1; 587#L716 assume !(0 != test_~tmp___1~0#1); 670#L716-2 assume { :begin_inline_timeShift } true; 737#L746 assume !(0 != ~pumpRunning~0); 731#L746-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret40#1, processEnvironment_~tmp~7#1;havoc processEnvironment_~tmp~7#1; 579#L804 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret39#1, processEnvironment__wrappee__highWaterSensor_~tmp~6#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~6#1; 581#L778-2 assume !(0 == ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true; 810#L770-3 assume { :end_inline_processEnvironment__wrappee__base } true; 805#L778-3 assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 803#L804-1 assume { :end_inline_processEnvironment } true; 757#L753-1 assume { :begin_inline___utac_acc__Specification1_spec__1 } true;havoc __utac_acc__Specification1_spec__1_#t~ret10#1, __utac_acc__Specification1_spec__1_#t~ret11#1, __utac_acc__Specification1_spec__1_~tmp~1#1, __utac_acc__Specification1_spec__1_~tmp___0~0#1;havoc __utac_acc__Specification1_spec__1_~tmp~1#1;havoc __utac_acc__Specification1_spec__1_~tmp___0~0#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~1#1;havoc isMethaneLevelCritical_~retValue_acc~1#1;isMethaneLevelCritical_~retValue_acc~1#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~1#1; 710#L203-2 __utac_acc__Specification1_spec__1_#t~ret10#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification1_spec__1_~tmp~1#1 := __utac_acc__Specification1_spec__1_#t~ret10#1;havoc __utac_acc__Specification1_spec__1_#t~ret10#1; 711#L273 assume !(0 != __utac_acc__Specification1_spec__1_~tmp~1#1); 690#L273-1 assume { :end_inline___utac_acc__Specification1_spec__1 } true; 691#L763 assume { :end_inline_timeShift } true; 618#L678-2 [2022-02-21 04:15:46,833 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:15:46,833 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 2 times [2022-02-21 04:15:46,833 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:15:46,833 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [846023182] [2022-02-21 04:15:46,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:15:46,834 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:15:46,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:15:46,854 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:15:46,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:15:46,873 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:15:46,874 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:15:46,874 INFO L85 PathProgramCache]: Analyzing trace with hash -1136266127, now seen corresponding path program 1 times [2022-02-21 04:15:46,874 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:15:46,875 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [610126152] [2022-02-21 04:15:46,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:15:46,875 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:15:46,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-21 04:15:46,893 INFO L290 TraceCheckUtils]: 0: Hoare triple {1610#true} assume !false; {1610#true} is VALID [2022-02-21 04:15:46,893 INFO L290 TraceCheckUtils]: 1: Hoare triple {1610#true} assume test_~splverifierCounter~0#1 < 4; {1610#true} is VALID [2022-02-21 04:15:46,893 INFO L290 TraceCheckUtils]: 2: Hoare triple {1610#true} test_~tmp~5#1 := test_#t~nondet35#1;havoc test_#t~nondet35#1; {1610#true} is VALID [2022-02-21 04:15:46,894 INFO L290 TraceCheckUtils]: 3: Hoare triple {1610#true} assume !(0 != test_~tmp~5#1); {1610#true} is VALID [2022-02-21 04:15:46,894 INFO L290 TraceCheckUtils]: 4: Hoare triple {1610#true} test_~tmp___0~1#1 := test_#t~nondet36#1;havoc test_#t~nondet36#1; {1610#true} is VALID [2022-02-21 04:15:46,894 INFO L290 TraceCheckUtils]: 5: Hoare triple {1610#true} assume !(0 != test_~tmp___0~1#1); {1610#true} is VALID [2022-02-21 04:15:46,894 INFO L290 TraceCheckUtils]: 6: Hoare triple {1610#true} test_~tmp___2~0#1 := test_#t~nondet37#1;havoc test_#t~nondet37#1; {1610#true} is VALID [2022-02-21 04:15:46,894 INFO L290 TraceCheckUtils]: 7: Hoare triple {1610#true} assume !(0 != test_~tmp___2~0#1);test_~tmp___1~0#1 := test_#t~nondet38#1;havoc test_#t~nondet38#1; {1610#true} is VALID [2022-02-21 04:15:46,895 INFO L290 TraceCheckUtils]: 8: Hoare triple {1610#true} assume !(0 != test_~tmp___1~0#1); {1610#true} is VALID [2022-02-21 04:15:46,895 INFO L290 TraceCheckUtils]: 9: Hoare triple {1610#true} assume { :begin_inline_timeShift } true; {1610#true} is VALID [2022-02-21 04:15:46,895 INFO L290 TraceCheckUtils]: 10: Hoare triple {1610#true} assume !(0 != ~pumpRunning~0); {1612#(= ~pumpRunning~0 0)} is VALID [2022-02-21 04:15:46,896 INFO L290 TraceCheckUtils]: 11: Hoare triple {1612#(= ~pumpRunning~0 0)} assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret40#1, processEnvironment_~tmp~7#1;havoc processEnvironment_~tmp~7#1; {1612#(= ~pumpRunning~0 0)} is VALID [2022-02-21 04:15:46,896 INFO L290 TraceCheckUtils]: 12: Hoare triple {1612#(= ~pumpRunning~0 0)} assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret39#1, processEnvironment__wrappee__highWaterSensor_~tmp~6#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~6#1; {1612#(= ~pumpRunning~0 0)} is VALID [2022-02-21 04:15:46,897 INFO L290 TraceCheckUtils]: 13: Hoare triple {1612#(= ~pumpRunning~0 0)} assume !(0 == ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true; {1611#false} is VALID [2022-02-21 04:15:46,897 INFO L290 TraceCheckUtils]: 14: Hoare triple {1611#false} assume { :end_inline_processEnvironment__wrappee__base } true; {1611#false} is VALID [2022-02-21 04:15:46,897 INFO L290 TraceCheckUtils]: 15: Hoare triple {1611#false} assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; {1611#false} is VALID [2022-02-21 04:15:46,897 INFO L290 TraceCheckUtils]: 16: Hoare triple {1611#false} assume { :end_inline_processEnvironment } true; {1611#false} is VALID [2022-02-21 04:15:46,898 INFO L290 TraceCheckUtils]: 17: Hoare triple {1611#false} assume { :begin_inline___utac_acc__Specification1_spec__1 } true;havoc __utac_acc__Specification1_spec__1_#t~ret10#1, __utac_acc__Specification1_spec__1_#t~ret11#1, __utac_acc__Specification1_spec__1_~tmp~1#1, __utac_acc__Specification1_spec__1_~tmp___0~0#1;havoc __utac_acc__Specification1_spec__1_~tmp~1#1;havoc __utac_acc__Specification1_spec__1_~tmp___0~0#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~1#1;havoc isMethaneLevelCritical_~retValue_acc~1#1;isMethaneLevelCritical_~retValue_acc~1#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~1#1; {1611#false} is VALID [2022-02-21 04:15:46,898 INFO L290 TraceCheckUtils]: 18: Hoare triple {1611#false} __utac_acc__Specification1_spec__1_#t~ret10#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification1_spec__1_~tmp~1#1 := __utac_acc__Specification1_spec__1_#t~ret10#1;havoc __utac_acc__Specification1_spec__1_#t~ret10#1; {1611#false} is VALID [2022-02-21 04:15:46,898 INFO L290 TraceCheckUtils]: 19: Hoare triple {1611#false} assume !(0 != __utac_acc__Specification1_spec__1_~tmp~1#1); {1611#false} is VALID [2022-02-21 04:15:46,898 INFO L290 TraceCheckUtils]: 20: Hoare triple {1611#false} assume { :end_inline___utac_acc__Specification1_spec__1 } true; {1611#false} is VALID [2022-02-21 04:15:46,898 INFO L290 TraceCheckUtils]: 21: Hoare triple {1611#false} assume { :end_inline_timeShift } true; {1611#false} is VALID [2022-02-21 04:15:46,899 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 04:15:46,899 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-21 04:15:46,899 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [610126152] [2022-02-21 04:15:46,899 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [610126152] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-21 04:15:46,899 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-21 04:15:46,900 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-02-21 04:15:46,900 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1512089178] [2022-02-21 04:15:46,900 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-21 04:15:46,900 INFO L808 eck$LassoCheckResult]: loop already infeasible [2022-02-21 04:15:46,901 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-21 04:15:46,901 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-02-21 04:15:46,901 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-21 04:15:46,902 INFO L87 Difference]: Start difference. First operand 344 states and 458 transitions. cyclomatic complexity: 117 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) [2022-02-21 04:15:47,185 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:15:47,185 INFO L93 Difference]: Finished difference Result 468 states and 599 transitions. [2022-02-21 04:15:47,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-21 04:15:47,186 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 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) [2022-02-21 04:15:47,204 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 22 edges. 22 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-02-21 04:15:47,205 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 468 states and 599 transitions. [2022-02-21 04:15:47,220 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 331 [2022-02-21 04:15:47,234 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 468 states to 468 states and 599 transitions. [2022-02-21 04:15:47,235 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 468 [2022-02-21 04:15:47,235 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 468 [2022-02-21 04:15:47,235 INFO L73 IsDeterministic]: Start isDeterministic. Operand 468 states and 599 transitions. [2022-02-21 04:15:47,237 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-02-21 04:15:47,238 INFO L681 BuchiCegarLoop]: Abstraction has 468 states and 599 transitions. [2022-02-21 04:15:47,238 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 468 states and 599 transitions. [2022-02-21 04:15:47,260 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 468 to 468. [2022-02-21 04:15:47,260 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-02-21 04:15:47,262 INFO L82 GeneralOperation]: Start isEquivalent. First operand 468 states and 599 transitions. Second operand has 468 states, 468 states have (on average 1.2799145299145298) internal successors, (599), 467 states have internal predecessors, (599), 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 04:15:47,263 INFO L74 IsIncluded]: Start isIncluded. First operand 468 states and 599 transitions. Second operand has 468 states, 468 states have (on average 1.2799145299145298) internal successors, (599), 467 states have internal predecessors, (599), 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 04:15:47,264 INFO L87 Difference]: Start difference. First operand 468 states and 599 transitions. Second operand has 468 states, 468 states have (on average 1.2799145299145298) internal successors, (599), 467 states have internal predecessors, (599), 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 04:15:47,277 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:15:47,278 INFO L93 Difference]: Finished difference Result 468 states and 599 transitions. [2022-02-21 04:15:47,278 INFO L276 IsEmpty]: Start isEmpty. Operand 468 states and 599 transitions. [2022-02-21 04:15:47,279 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:15:47,279 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:15:47,281 INFO L74 IsIncluded]: Start isIncluded. First operand has 468 states, 468 states have (on average 1.2799145299145298) internal successors, (599), 467 states have internal predecessors, (599), 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 468 states and 599 transitions. [2022-02-21 04:15:47,282 INFO L87 Difference]: Start difference. First operand has 468 states, 468 states have (on average 1.2799145299145298) internal successors, (599), 467 states have internal predecessors, (599), 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 468 states and 599 transitions. [2022-02-21 04:15:47,295 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:15:47,296 INFO L93 Difference]: Finished difference Result 468 states and 599 transitions. [2022-02-21 04:15:47,296 INFO L276 IsEmpty]: Start isEmpty. Operand 468 states and 599 transitions. [2022-02-21 04:15:47,297 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:15:47,297 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:15:47,297 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-02-21 04:15:47,297 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-02-21 04:15:47,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 468 states, 468 states have (on average 1.2799145299145298) internal successors, (599), 467 states have internal predecessors, (599), 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 04:15:47,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 468 states to 468 states and 599 transitions. [2022-02-21 04:15:47,312 INFO L704 BuchiCegarLoop]: Abstraction has 468 states and 599 transitions. [2022-02-21 04:15:47,312 INFO L587 BuchiCegarLoop]: Abstraction has 468 states and 599 transitions. [2022-02-21 04:15:47,312 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2022-02-21 04:15:47,312 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 468 states and 599 transitions. [2022-02-21 04:15:47,314 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 331 [2022-02-21 04:15:47,315 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:15:47,315 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:15:47,315 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:15:47,315 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] [2022-02-21 04:15:47,316 INFO L791 eck$LassoCheckResult]: Stem: 2285#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(30, 9);call #Ultimate.allocInit(9, 10);call #Ultimate.allocInit(21, 11);call #Ultimate.allocInit(30, 12);call #Ultimate.allocInit(9, 13);call #Ultimate.allocInit(21, 14);call #Ultimate.allocInit(30, 15);call #Ultimate.allocInit(9, 16);call #Ultimate.allocInit(25, 17);call #Ultimate.allocInit(30, 18);call #Ultimate.allocInit(9, 19);call #Ultimate.allocInit(25, 20);call #Ultimate.allocInit(13, 21);call #Ultimate.allocInit(3, 22);call write~init~int(79, 22, 0, 1);call write~init~int(110, 22, 1, 1);call write~init~int(0, 22, 2, 1);call #Ultimate.allocInit(4, 23);call write~init~int(79, 23, 0, 1);call write~init~int(102, 23, 1, 1);call write~init~int(102, 23, 2, 1);call write~init~int(0, 23, 3, 1);call #Ultimate.allocInit(7, 24);call write~init~int(44, 24, 0, 1);call write~init~int(80, 24, 1, 1);call write~init~int(117, 24, 2, 1);call write~init~int(109, 24, 3, 1);call write~init~int(112, 24, 4, 1);call write~init~int(58, 24, 5, 1);call write~init~int(0, 24, 6, 1);call #Ultimate.allocInit(3, 25);call write~init~int(79, 25, 0, 1);call write~init~int(110, 25, 1, 1);call write~init~int(0, 25, 2, 1);call #Ultimate.allocInit(4, 26);call write~init~int(79, 26, 0, 1);call write~init~int(102, 26, 1, 1);call write~init~int(102, 26, 2, 1);call write~init~int(0, 26, 3, 1);call #Ultimate.allocInit(3, 27);call write~init~int(41, 27, 0, 1);call write~init~int(32, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(10, 28, 0, 1);call write~init~int(0, 28, 1, 1);~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1; 2165#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; 2166#L999 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 2213#L992 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~13#1;havoc valid_product_~retValue_acc~13#1;valid_product_~retValue_acc~13#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~13#1; 2214#L1007 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; 2195#L140 assume 0 != main_~tmp~0#1;assume { :begin_inline_setup } true; 2196#L113 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet35#1, test_#t~nondet36#1, test_#t~nondet37#1, test_#t~nondet38#1, test_~splverifierCounter~0#1, test_~tmp~5#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~5#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 2222#L678-2 [2022-02-21 04:15:47,316 INFO L793 eck$LassoCheckResult]: Loop: 2222#L678-2 assume !false; 2264#L679 assume test_~splverifierCounter~0#1 < 4; 2265#L680 test_~tmp~5#1 := test_#t~nondet35#1;havoc test_#t~nondet35#1; 2263#L688 assume !(0 != test_~tmp~5#1); 2096#L688-2 test_~tmp___0~1#1 := test_#t~nondet36#1;havoc test_#t~nondet36#1; 2127#L698 assume !(0 != test_~tmp___0~1#1); 2260#L698-2 test_~tmp___2~0#1 := test_#t~nondet37#1;havoc test_#t~nondet37#1; 2459#L708 assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 2101#L973 assume { :end_inline_startSystem } true; 2174#L716-2 assume { :begin_inline_timeShift } true; 2251#L746 assume !(0 != ~pumpRunning~0); 2242#L746-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret40#1, processEnvironment_~tmp~7#1;havoc processEnvironment_~tmp~7#1; 2243#L804 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret39#1, processEnvironment__wrappee__highWaterSensor_~tmp~6#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~6#1; 2272#L778-2 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret51#1, isHighWaterLevel_~retValue_acc~10#1, isHighWaterLevel_~tmp~9#1, isHighWaterLevel_~tmp___0~2#1;havoc isHighWaterLevel_~retValue_acc~10#1;havoc isHighWaterLevel_~tmp~9#1;havoc isHighWaterLevel_~tmp___0~2#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~3#1;havoc isHighWaterSensorDry_~retValue_acc~3#1; 2273#L243-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~3#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~3#1; 2384#L248-1 isHighWaterLevel_#t~ret51#1 := isHighWaterSensorDry_#res#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~9#1 := isHighWaterLevel_#t~ret51#1;havoc isHighWaterLevel_#t~ret51#1; 2382#L924-3 assume 0 != isHighWaterLevel_~tmp~9#1;isHighWaterLevel_~tmp___0~2#1 := 0; 2380#L924-5 isHighWaterLevel_~retValue_acc~10#1 := isHighWaterLevel_~tmp___0~2#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~10#1; 2293#L930-1 processEnvironment__wrappee__highWaterSensor_#t~ret39#1 := isHighWaterLevel_#res#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~6#1 := processEnvironment__wrappee__highWaterSensor_#t~ret39#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret39#1; 2191#L782-3 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~6#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 2193#L770-2 assume { :end_inline_processEnvironment__wrappee__base } true; 2262#L778-3 assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 2126#L804-1 assume { :end_inline_processEnvironment } true; 2274#L753-1 assume { :begin_inline___utac_acc__Specification1_spec__1 } true;havoc __utac_acc__Specification1_spec__1_#t~ret10#1, __utac_acc__Specification1_spec__1_#t~ret11#1, __utac_acc__Specification1_spec__1_~tmp~1#1, __utac_acc__Specification1_spec__1_~tmp___0~0#1;havoc __utac_acc__Specification1_spec__1_~tmp~1#1;havoc __utac_acc__Specification1_spec__1_~tmp___0~0#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~1#1;havoc isMethaneLevelCritical_~retValue_acc~1#1;isMethaneLevelCritical_~retValue_acc~1#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~1#1; 2275#L203-2 __utac_acc__Specification1_spec__1_#t~ret10#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification1_spec__1_~tmp~1#1 := __utac_acc__Specification1_spec__1_#t~ret10#1;havoc __utac_acc__Specification1_spec__1_#t~ret10#1; 2202#L273 assume !(0 != __utac_acc__Specification1_spec__1_~tmp~1#1); 2203#L273-1 assume { :end_inline___utac_acc__Specification1_spec__1 } true; 2221#L763 assume { :end_inline_timeShift } true; 2222#L678-2 [2022-02-21 04:15:47,317 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:15:47,317 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 3 times [2022-02-21 04:15:47,317 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:15:47,317 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1709966626] [2022-02-21 04:15:47,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:15:47,318 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:15:47,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:15:47,345 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:15:47,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:15:47,374 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:15:47,377 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:15:47,377 INFO L85 PathProgramCache]: Analyzing trace with hash -284494825, now seen corresponding path program 1 times [2022-02-21 04:15:47,378 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:15:47,378 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [811659282] [2022-02-21 04:15:47,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:15:47,379 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:15:47,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:15:47,397 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:15:47,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:15:47,404 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:15:47,405 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:15:47,405 INFO L85 PathProgramCache]: Analyzing trace with hash -1535476773, now seen corresponding path program 1 times [2022-02-21 04:15:47,405 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:15:47,406 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [635186906] [2022-02-21 04:15:47,406 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:15:47,406 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:15:47,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:15:47,421 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:15:47,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:15:47,438 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:15:50,249 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 21.02 04:15:50 BoogieIcfgContainer [2022-02-21 04:15:50,249 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-02-21 04:15:50,250 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-02-21 04:15:50,250 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-02-21 04:15:50,250 INFO L275 PluginConnector]: Witness Printer initialized [2022-02-21 04:15:50,251 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 04:15:45" (3/4) ... [2022-02-21 04:15:50,255 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2022-02-21 04:15:50,311 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-02-21 04:15:50,311 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-02-21 04:15:50,312 INFO L158 Benchmark]: Toolchain (without parser) took 5834.98ms. Allocated memory was 86.0MB in the beginning and 157.3MB in the end (delta: 71.3MB). Free memory was 46.6MB in the beginning and 118.6MB in the end (delta: -72.1MB). Peak memory consumption was 273.0kB. Max. memory is 16.1GB. [2022-02-21 04:15:50,313 INFO L158 Benchmark]: CDTParser took 0.26ms. Allocated memory is still 86.0MB. Free memory was 63.8MB in the beginning and 63.7MB in the end (delta: 39.0kB). There was no memory consumed. Max. memory is 16.1GB. [2022-02-21 04:15:50,313 INFO L158 Benchmark]: CACSL2BoogieTranslator took 427.05ms. Allocated memory is still 86.0MB. Free memory was 65.1MB in the beginning and 49.0MB in the end (delta: 16.1MB). Peak memory consumption was 14.9MB. Max. memory is 16.1GB. [2022-02-21 04:15:50,314 INFO L158 Benchmark]: Boogie Procedure Inliner took 96.35ms. Allocated memory is still 86.0MB. Free memory was 48.8MB in the beginning and 44.2MB in the end (delta: 4.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-02-21 04:15:50,314 INFO L158 Benchmark]: Boogie Preprocessor took 60.00ms. Allocated memory is still 86.0MB. Free memory was 44.0MB in the beginning and 41.3MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-02-21 04:15:50,315 INFO L158 Benchmark]: RCFGBuilder took 667.57ms. Allocated memory was 86.0MB in the beginning and 104.9MB in the end (delta: 18.9MB). Free memory was 41.3MB in the beginning and 60.9MB in the end (delta: -19.6MB). Peak memory consumption was 16.3MB. Max. memory is 16.1GB. [2022-02-21 04:15:50,315 INFO L158 Benchmark]: BuchiAutomizer took 4504.01ms. Allocated memory was 104.9MB in the beginning and 157.3MB in the end (delta: 52.4MB). Free memory was 60.9MB in the beginning and 121.8MB in the end (delta: -60.9MB). Peak memory consumption was 55.9MB. Max. memory is 16.1GB. [2022-02-21 04:15:50,315 INFO L158 Benchmark]: Witness Printer took 61.25ms. Allocated memory is still 157.3MB. Free memory was 121.8MB in the beginning and 118.6MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-02-21 04:15:50,318 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 0.26ms. Allocated memory is still 86.0MB. Free memory was 63.8MB in the beginning and 63.7MB in the end (delta: 39.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 427.05ms. Allocated memory is still 86.0MB. Free memory was 65.1MB in the beginning and 49.0MB in the end (delta: 16.1MB). Peak memory consumption was 14.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 96.35ms. Allocated memory is still 86.0MB. Free memory was 48.8MB in the beginning and 44.2MB in the end (delta: 4.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 60.00ms. Allocated memory is still 86.0MB. Free memory was 44.0MB in the beginning and 41.3MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 667.57ms. Allocated memory was 86.0MB in the beginning and 104.9MB in the end (delta: 18.9MB). Free memory was 41.3MB in the beginning and 60.9MB in the end (delta: -19.6MB). Peak memory consumption was 16.3MB. Max. memory is 16.1GB. * BuchiAutomizer took 4504.01ms. Allocated memory was 104.9MB in the beginning and 157.3MB in the end (delta: 52.4MB). Free memory was 60.9MB in the beginning and 121.8MB in the end (delta: -60.9MB). Peak memory consumption was 55.9MB. Max. memory is 16.1GB. * Witness Printer took 61.25ms. Allocated memory is still 157.3MB. Free memory was 121.8MB in the beginning and 118.6MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. 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 2 terminating modules (2 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.2 modules have a trivial ranking function, the largest among these consists of 3 locations. The remainder module has 468 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 4.4s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 3.2s. Construction of modules took 0.0s. Büchi inclusion checks took 0.7s. Highest rank in rank-based complementation 0. Minimization of det autom 2. Minimization of nondet autom 0. Automata minimization 0.2s AutomataMinimizationTime, 2 MinimizatonAttempts, 3 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 468 states and ocurred in iteration 2. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 407 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 407 mSDsluCounter, 811 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 336 mSDsCounter, 26 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 41 IncrementalHoareTripleChecker+Invalid, 67 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 26 mSolverCounterUnsat, 475 mSDtfsCounter, 41 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI2 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 678]: 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, tmp___0=0, pumpRunning=0, tmp___0=0, NULL=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@655e178=0, tmp___0=0, retValue_acc=1, tmp=0, methaneLevelCritical=0, retValue_acc=0, \result=0, retValue_acc=0, retValue_acc=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1c53860d=0, retValue_acc=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@756bfe5f=29, \result=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3faa2c2=0, \result=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@20eae057=0, tmp=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6c6dfcab=0, tmp___2=29, cleanupTimeShifts=4, tmp=1, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7d77f418=0, head=0, tmp___1=0, tmp=0, NULL=0, waterLevel=1, systemActive=1, tmp=0, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1691b639=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@42efe4bd=0, tmp=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@52638eec=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 678]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L50] int cleanupTimeShifts = 4; [L160] int waterLevel = 1; [L161] int methaneLevelCritical = 0; [L460] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L739] int pumpRunning = 0; [L740] int systemActive = 1; [L131] int retValue_acc ; [L132] int tmp ; [L136] FCALL select_helpers() [L137] FCALL select_features() [L138] CALL, EXPR valid_product() [L1003] int retValue_acc ; [L1006] retValue_acc = 1 [L1007] return (retValue_acc); [L138] RET, EXPR valid_product() [L138] tmp = valid_product() [L140] COND TRUE \read(tmp) [L142] FCALL setup() [L143] CALL runTest() [L122] CALL test() [L669] int splverifierCounter ; [L670] int tmp ; [L671] int tmp___0 ; [L672] int tmp___1 ; [L673] int tmp___2 ; [L676] splverifierCounter = 0 Loop: [L678] COND TRUE 1 [L680] COND TRUE splverifierCounter < 4 [L686] tmp = __VERIFIER_nondet_int() [L688] COND FALSE !(\read(tmp)) [L696] tmp___0 = __VERIFIER_nondet_int() [L698] COND FALSE !(\read(tmp___0)) [L706] tmp___2 = __VERIFIER_nondet_int() [L708] COND TRUE \read(tmp___2) [L710] CALL startSystem() [L972] systemActive = 1 [L710] RET startSystem() [L725] CALL timeShift() [L746] COND FALSE !(\read(pumpRunning)) [L753] COND TRUE \read(systemActive) [L755] CALL processEnvironment() [L801] int tmp ; [L804] COND FALSE !(\read(pumpRunning)) [L819] CALL processEnvironment__wrappee__highWaterSensor() [L775] int tmp ; [L778] COND TRUE ! pumpRunning [L780] CALL, EXPR isHighWaterLevel() [L916] int retValue_acc ; [L917] int tmp ; [L918] int tmp___0 ; [L922] CALL, EXPR isHighWaterSensorDry() [L240] int retValue_acc ; [L243] COND TRUE waterLevel < 2 [L244] retValue_acc = 1 [L245] return (retValue_acc); [L922] RET, EXPR isHighWaterSensorDry() [L922] tmp = isHighWaterSensorDry() [L924] COND TRUE \read(tmp) [L925] tmp___0 = 0 [L929] retValue_acc = tmp___0 [L930] return (retValue_acc); [L780] RET, EXPR isHighWaterLevel() [L780] tmp = isHighWaterLevel() [L782] COND FALSE !(\read(tmp)) [L788] FCALL processEnvironment__wrappee__base() [L819] RET processEnvironment__wrappee__highWaterSensor() [L755] RET processEnvironment() [L761] CALL __utac_acc__Specification1_spec__1() [L266] int tmp ; [L267] int tmp___0 ; [L271] CALL, EXPR isMethaneLevelCritical() [L199] int retValue_acc ; [L202] retValue_acc = methaneLevelCritical [L203] return (retValue_acc); [L271] RET, EXPR isMethaneLevelCritical() [L271] tmp = isMethaneLevelCritical() [L273] COND FALSE !(\read(tmp)) [L761] RET __utac_acc__Specification1_spec__1() [L725] RET timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2022-02-21 04:15:50,370 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)