./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/minepump_spec3_product08.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version ff03de63 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i ../sv-benchmarks/c/product-lines/minepump_spec3_product08.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 f2656148601f1263a8e24b75d9059e08eab7a1ff3676ef4340768cc6aab19236 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-ff03de6 [2021-12-21 22:34:08,620 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-21 22:34:08,622 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-21 22:34:08,689 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-21 22:34:08,691 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-21 22:34:08,695 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-21 22:34:08,697 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-21 22:34:08,700 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-21 22:34:08,702 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-21 22:34:08,706 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-21 22:34:08,707 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-21 22:34:08,708 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-21 22:34:08,708 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-21 22:34:08,711 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-21 22:34:08,712 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-21 22:34:08,714 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-21 22:34:08,715 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-21 22:34:08,716 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-21 22:34:08,719 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-21 22:34:08,725 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-21 22:34:08,726 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-21 22:34:08,727 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-21 22:34:08,729 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-21 22:34:08,729 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-21 22:34:08,734 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-21 22:34:08,734 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-21 22:34:08,734 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-21 22:34:08,736 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-21 22:34:08,736 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-21 22:34:08,737 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-21 22:34:08,737 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-21 22:34:08,738 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-21 22:34:08,740 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-21 22:34:08,741 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-21 22:34:08,742 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-21 22:34:08,742 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-21 22:34:08,743 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-21 22:34:08,743 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-21 22:34:08,743 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-21 22:34:08,744 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-21 22:34:08,745 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-21 22:34:08,747 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-12-21 22:34:08,777 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-21 22:34:08,777 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-21 22:34:08,778 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-21 22:34:08,778 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-21 22:34:08,779 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-21 22:34:08,779 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-21 22:34:08,779 INFO L138 SettingsManager]: * Use SBE=true [2021-12-21 22:34:08,780 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-12-21 22:34:08,780 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-12-21 22:34:08,780 INFO L138 SettingsManager]: * Use old map elimination=false [2021-12-21 22:34:08,781 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-12-21 22:34:08,781 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-12-21 22:34:08,781 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-12-21 22:34:08,781 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-21 22:34:08,782 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-21 22:34:08,782 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-12-21 22:34:08,782 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-21 22:34:08,782 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-21 22:34:08,782 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-21 22:34:08,782 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-12-21 22:34:08,783 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-12-21 22:34:08,783 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-12-21 22:34:08,783 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-21 22:34:08,783 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-21 22:34:08,784 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-12-21 22:34:08,784 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-21 22:34:08,784 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-12-21 22:34:08,785 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-21 22:34:08,785 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-21 22:34:08,785 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-21 22:34:08,785 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-21 22:34:08,786 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-21 22:34:08,787 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-12-21 22:34:08,787 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f2656148601f1263a8e24b75d9059e08eab7a1ff3676ef4340768cc6aab19236 [2021-12-21 22:34:09,018 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-21 22:34:09,038 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-21 22:34:09,040 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-21 22:34:09,041 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-21 22:34:09,041 INFO L275 PluginConnector]: CDTParser initialized [2021-12-21 22:34:09,042 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec3_product08.cil.c [2021-12-21 22:34:09,096 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0d104a089/84ba0270906f41ffa3eb2c5d5228fbf2/FLAGa1dfa28f8 [2021-12-21 22:34:09,518 INFO L306 CDTParser]: Found 1 translation units. [2021-12-21 22:34:09,519 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec3_product08.cil.c [2021-12-21 22:34:09,534 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0d104a089/84ba0270906f41ffa3eb2c5d5228fbf2/FLAGa1dfa28f8 [2021-12-21 22:34:09,551 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0d104a089/84ba0270906f41ffa3eb2c5d5228fbf2 [2021-12-21 22:34:09,555 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-21 22:34:09,557 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-21 22:34:09,559 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-21 22:34:09,559 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-21 22:34:09,562 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-21 22:34:09,563 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 10:34:09" (1/1) ... [2021-12-21 22:34:09,563 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2e953186 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:34:09, skipping insertion in model container [2021-12-21 22:34:09,564 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 10:34:09" (1/1) ... [2021-12-21 22:34:09,569 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-21 22:34:09,615 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-21 22:34:09,877 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec3_product08.cil.c[13019,13032] [2021-12-21 22:34:09,908 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-21 22:34:09,924 INFO L203 MainTranslator]: Completed pre-run [2021-12-21 22:34:09,976 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec3_product08.cil.c[13019,13032] [2021-12-21 22:34:09,991 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-21 22:34:10,012 INFO L208 MainTranslator]: Completed translation [2021-12-21 22:34:10,013 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:34:10 WrapperNode [2021-12-21 22:34:10,013 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-21 22:34:10,014 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-21 22:34:10,014 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-21 22:34:10,015 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-21 22:34:10,021 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:34:10" (1/1) ... [2021-12-21 22:34:10,033 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:34:10" (1/1) ... [2021-12-21 22:34:10,082 INFO L137 Inliner]: procedures = 52, calls = 152, calls flagged for inlining = 49, calls inlined = 53, statements flattened = 402 [2021-12-21 22:34:10,086 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-21 22:34:10,087 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-21 22:34:10,087 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-21 22:34:10,087 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-21 22:34:10,094 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:34:10" (1/1) ... [2021-12-21 22:34:10,095 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:34:10" (1/1) ... [2021-12-21 22:34:10,098 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:34:10" (1/1) ... [2021-12-21 22:34:10,099 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:34:10" (1/1) ... [2021-12-21 22:34:10,107 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:34:10" (1/1) ... [2021-12-21 22:34:10,111 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:34:10" (1/1) ... [2021-12-21 22:34:10,113 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:34:10" (1/1) ... [2021-12-21 22:34:10,116 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-21 22:34:10,117 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-21 22:34:10,117 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-21 22:34:10,117 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-21 22:34:10,129 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:34:10" (1/1) ... [2021-12-21 22:34:10,135 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-21 22:34:10,145 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 22:34:10,156 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-21 22:34:10,167 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-12-21 22:34:10,203 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-21 22:34:10,203 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-21 22:34:10,204 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-21 22:34:10,204 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-21 22:34:10,306 INFO L234 CfgBuilder]: Building ICFG [2021-12-21 22:34:10,308 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-21 22:34:10,670 INFO L275 CfgBuilder]: Performing block encoding [2021-12-21 22:34:10,676 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-21 22:34:10,676 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2021-12-21 22:34:10,698 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 10:34:10 BoogieIcfgContainer [2021-12-21 22:34:10,698 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-21 22:34:10,699 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-12-21 22:34:10,699 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-12-21 22:34:10,702 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-12-21 22:34:10,712 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-21 22:34:10,712 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 21.12 10:34:09" (1/3) ... [2021-12-21 22:34:10,713 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6ff6b8ba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.12 10:34:10, skipping insertion in model container [2021-12-21 22:34:10,713 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-21 22:34:10,713 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:34:10" (2/3) ... [2021-12-21 22:34:10,714 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6ff6b8ba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.12 10:34:10, skipping insertion in model container [2021-12-21 22:34:10,714 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-21 22:34:10,714 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 10:34:10" (3/3) ... [2021-12-21 22:34:10,715 INFO L388 chiAutomizerObserver]: Analyzing ICFG minepump_spec3_product08.cil.c [2021-12-21 22:34:10,786 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-12-21 22:34:10,786 INFO L360 BuchiCegarLoop]: Hoare is false [2021-12-21 22:34:10,786 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-12-21 22:34:10,786 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-12-21 22:34:10,786 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-12-21 22:34:10,786 INFO L364 BuchiCegarLoop]: Difference is false [2021-12-21 22:34:10,787 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-12-21 22:34:10,787 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-12-21 22:34:10,806 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 107 states, 106 states have (on average 1.3584905660377358) internal successors, (144), 106 states have internal predecessors, (144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-21 22:34:10,829 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 69 [2021-12-21 22:34:10,830 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-21 22:34:10,830 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-21 22:34:10,836 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-12-21 22:34:10,836 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 22:34:10,837 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-12-21 22:34:10,838 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 107 states, 106 states have (on average 1.3584905660377358) internal successors, (144), 106 states have internal predecessors, (144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-21 22:34:10,852 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 69 [2021-12-21 22:34:10,852 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-21 22:34:10,852 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-21 22:34:10,853 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-12-21 22:34:10,853 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 22:34:10,857 INFO L791 eck$LassoCheckResult]: Stem: 95#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(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);call #Ultimate.allocInit(13, 16);call #Ultimate.allocInit(7, 17);call write~init~int(44, 17, 0, 1);call write~init~int(77, 17, 1, 1);call write~init~int(101, 17, 2, 1);call write~init~int(116, 17, 3, 1);call write~init~int(104, 17, 4, 1);call write~init~int(58, 17, 5, 1);call write~init~int(0, 17, 6, 1);call #Ultimate.allocInit(5, 18);call write~init~int(67, 18, 0, 1);call write~init~int(82, 18, 1, 1);call write~init~int(73, 18, 2, 1);call write~init~int(84, 18, 3, 1);call write~init~int(0, 18, 4, 1);call #Ultimate.allocInit(3, 19);call write~init~int(79, 19, 0, 1);call write~init~int(75, 19, 1, 1);call write~init~int(0, 19, 2, 1);call #Ultimate.allocInit(2, 20);call write~init~int(41, 20, 0, 1);call write~init~int(0, 20, 1, 1);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);~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4; 31#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret50#1, main_~retValue_acc~9#1, main_~tmp~6#1;havoc main_~retValue_acc~9#1;havoc main_~tmp~6#1;assume { :begin_inline_select_helpers } true; 9#L804true assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 71#L797true assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~8#1;havoc valid_product_~retValue_acc~8#1;valid_product_~retValue_acc~8#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~8#1; 65#L812true main_#t~ret50#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~6#1 := main_#t~ret50#1;havoc main_#t~ret50#1; 33#L899true assume 0 != main_~tmp~6#1;assume { :begin_inline_setup } true; 76#L876true 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~4#1, test_~tmp___0~1#1, test_~tmp___1~1#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~4#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~1#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 27#L561-2true [2021-12-21 22:34:10,859 INFO L793 eck$LassoCheckResult]: Loop: 27#L561-2true assume !false; 68#L562true assume test_~splverifierCounter~0#1 < 4; 53#L563true test_~tmp~4#1 := test_#t~nondet35#1;havoc test_#t~nondet35#1; 97#L571true assume !(0 != test_~tmp~4#1); 25#L571-2true test_~tmp___0~1#1 := test_#t~nondet36#1;havoc test_#t~nondet36#1; 109#L581true assume !(0 != test_~tmp___0~1#1); 93#L581-2true test_~tmp___2~0#1 := test_#t~nondet37#1;havoc test_#t~nondet37#1; 92#L591true assume !(0 != test_~tmp___2~0#1);test_~tmp___1~1#1 := test_#t~nondet38#1;havoc test_#t~nondet38#1; 51#L599true assume !(0 != test_~tmp___1~1#1); 64#L599-2true assume { :begin_inline_timeShift } true; 69#L630true assume !(0 != ~pumpRunning~0); 42#L630-2true assume !(0 != ~systemActive~0); 55#L637-1true assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret4#1, __utac_acc__Specification3_spec__1_#t~ret5#1, __utac_acc__Specification3_spec__1_#t~ret6#1, __utac_acc__Specification3_spec__1_~tmp~0#1, __utac_acc__Specification3_spec__1_~tmp___0~0#1, __utac_acc__Specification3_spec__1_~tmp___1~0#1;havoc __utac_acc__Specification3_spec__1_~tmp~0#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~0#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~0#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~3#1;havoc isMethaneLevelCritical_~retValue_acc~3#1;isMethaneLevelCritical_~retValue_acc~3#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~3#1; 81#L501-1true __utac_acc__Specification3_spec__1_#t~ret4#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~0#1 := __utac_acc__Specification3_spec__1_#t~ret4#1;havoc __utac_acc__Specification3_spec__1_#t~ret4#1; 6#L63true assume 0 != __utac_acc__Specification3_spec__1_~tmp~0#1; 102#L69-1true assume { :end_inline___utac_acc__Specification3_spec__1 } true; 99#L647true assume { :end_inline_timeShift } true; 27#L561-2true [2021-12-21 22:34:10,863 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 22:34:10,864 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 1 times [2021-12-21 22:34:10,871 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 22:34:10,872 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [126138503] [2021-12-21 22:34:10,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 22:34:10,873 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 22:34:10,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 22:34:10,981 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-21 22:34:11,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 22:34:11,020 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-21 22:34:11,023 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 22:34:11,023 INFO L85 PathProgramCache]: Analyzing trace with hash 1173736865, now seen corresponding path program 1 times [2021-12-21 22:34:11,023 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 22:34:11,024 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [701547824] [2021-12-21 22:34:11,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 22:34:11,024 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 22:34:11,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 22:34:11,032 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-21 22:34:11,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 22:34:11,039 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-21 22:34:11,041 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 22:34:11,041 INFO L85 PathProgramCache]: Analyzing trace with hash 242055261, now seen corresponding path program 1 times [2021-12-21 22:34:11,041 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 22:34:11,041 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1106931157] [2021-12-21 22:34:11,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 22:34:11,042 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 22:34:11,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 22:34:11,157 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-21 22:34:11,158 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 22:34:11,158 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1106931157] [2021-12-21 22:34:11,159 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1106931157] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 22:34:11,159 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 22:34:11,159 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-21 22:34:11,160 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1516491105] [2021-12-21 22:34:11,160 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 22:34:11,309 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 22:34:11,336 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-21 22:34:11,336 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-12-21 22:34:11,338 INFO L87 Difference]: Start difference. First operand has 107 states, 106 states have (on average 1.3584905660377358) internal successors, (144), 106 states have internal predecessors, (144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 6 states, 6 states have (on average 4.0) internal successors, (24), 5 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-21 22:34:11,481 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 22:34:11,482 INFO L93 Difference]: Finished difference Result 366 states and 467 transitions. [2021-12-21 22:34:11,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-21 22:34:11,488 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 366 states and 467 transitions. [2021-12-21 22:34:11,493 INFO L131 ngComponentsAnalysis]: Automaton has 6 accepting balls. 236 [2021-12-21 22:34:11,498 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 366 states to 326 states and 427 transitions. [2021-12-21 22:34:11,502 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 326 [2021-12-21 22:34:11,507 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 326 [2021-12-21 22:34:11,507 INFO L73 IsDeterministic]: Start isDeterministic. Operand 326 states and 427 transitions. [2021-12-21 22:34:11,513 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-21 22:34:11,513 INFO L681 BuchiCegarLoop]: Abstraction has 326 states and 427 transitions. [2021-12-21 22:34:11,528 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 326 states and 427 transitions. [2021-12-21 22:34:11,553 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 326 to 152. [2021-12-21 22:34:11,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 152 states, 152 states have (on average 1.3157894736842106) internal successors, (200), 151 states have internal predecessors, (200), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-21 22:34:11,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 152 states and 200 transitions. [2021-12-21 22:34:11,559 INFO L704 BuchiCegarLoop]: Abstraction has 152 states and 200 transitions. [2021-12-21 22:34:11,559 INFO L587 BuchiCegarLoop]: Abstraction has 152 states and 200 transitions. [2021-12-21 22:34:11,559 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-12-21 22:34:11,559 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 152 states and 200 transitions. [2021-12-21 22:34:11,563 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 109 [2021-12-21 22:34:11,563 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-21 22:34:11,563 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-21 22:34:11,564 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-12-21 22:34:11,564 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] [2021-12-21 22:34:11,565 INFO L791 eck$LassoCheckResult]: Stem: 578#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(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);call #Ultimate.allocInit(13, 16);call #Ultimate.allocInit(7, 17);call write~init~int(44, 17, 0, 1);call write~init~int(77, 17, 1, 1);call write~init~int(101, 17, 2, 1);call write~init~int(116, 17, 3, 1);call write~init~int(104, 17, 4, 1);call write~init~int(58, 17, 5, 1);call write~init~int(0, 17, 6, 1);call #Ultimate.allocInit(5, 18);call write~init~int(67, 18, 0, 1);call write~init~int(82, 18, 1, 1);call write~init~int(73, 18, 2, 1);call write~init~int(84, 18, 3, 1);call write~init~int(0, 18, 4, 1);call #Ultimate.allocInit(3, 19);call write~init~int(79, 19, 0, 1);call write~init~int(75, 19, 1, 1);call write~init~int(0, 19, 2, 1);call #Ultimate.allocInit(2, 20);call write~init~int(41, 20, 0, 1);call write~init~int(0, 20, 1, 1);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);~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4; 564#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret50#1, main_~retValue_acc~9#1, main_~tmp~6#1;havoc main_~retValue_acc~9#1;havoc main_~tmp~6#1;assume { :begin_inline_select_helpers } true; 503#L804 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 504#L797 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~8#1;havoc valid_product_~retValue_acc~8#1;valid_product_~retValue_acc~8#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~8#1; 507#L812 main_#t~ret50#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~6#1 := main_#t~ret50#1;havoc main_#t~ret50#1; 508#L899 assume 0 != main_~tmp~6#1;assume { :begin_inline_setup } true; 541#L876 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~4#1, test_~tmp___0~1#1, test_~tmp___1~1#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~4#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~1#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 542#L561-2 [2021-12-21 22:34:11,565 INFO L793 eck$LassoCheckResult]: Loop: 542#L561-2 assume !false; 519#L562 assume test_~splverifierCounter~0#1 < 4; 520#L563 test_~tmp~4#1 := test_#t~nondet35#1;havoc test_#t~nondet35#1; 580#L571 assume !(0 != test_~tmp~4#1); 553#L571-2 test_~tmp___0~1#1 := test_#t~nondet36#1;havoc test_#t~nondet36#1; 554#L581 assume !(0 != test_~tmp___0~1#1); 563#L581-2 test_~tmp___2~0#1 := test_#t~nondet37#1;havoc test_#t~nondet37#1; 571#L591 assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 528#L775 assume { :end_inline_startSystem } true; 505#L599-2 assume { :begin_inline_timeShift } true; 506#L630 assume !(0 != ~pumpRunning~0); 522#L630-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret39#1, processEnvironment_~tmp~5#1;havoc processEnvironment_~tmp~5#1; 575#L662 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true; 567#L654-1 assume { :end_inline_processEnvironment__wrappee__base } true; 524#L662-1 assume { :end_inline_processEnvironment } true; 525#L637-1 assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret4#1, __utac_acc__Specification3_spec__1_#t~ret5#1, __utac_acc__Specification3_spec__1_#t~ret6#1, __utac_acc__Specification3_spec__1_~tmp~0#1, __utac_acc__Specification3_spec__1_~tmp___0~0#1, __utac_acc__Specification3_spec__1_~tmp___1~0#1;havoc __utac_acc__Specification3_spec__1_~tmp~0#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~0#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~0#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~3#1;havoc isMethaneLevelCritical_~retValue_acc~3#1;isMethaneLevelCritical_~retValue_acc~3#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~3#1; 552#L501-1 __utac_acc__Specification3_spec__1_#t~ret4#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~0#1 := __utac_acc__Specification3_spec__1_#t~ret4#1;havoc __utac_acc__Specification3_spec__1_#t~ret4#1; 499#L63 assume 0 != __utac_acc__Specification3_spec__1_~tmp~0#1; 500#L69-1 assume { :end_inline___utac_acc__Specification3_spec__1 } true; 582#L647 assume { :end_inline_timeShift } true; 542#L561-2 [2021-12-21 22:34:11,566 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 22:34:11,566 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 2 times [2021-12-21 22:34:11,567 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 22:34:11,567 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1799146461] [2021-12-21 22:34:11,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 22:34:11,568 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 22:34:11,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 22:34:11,592 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-21 22:34:11,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 22:34:11,616 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-21 22:34:11,617 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 22:34:11,617 INFO L85 PathProgramCache]: Analyzing trace with hash 1877291397, now seen corresponding path program 1 times [2021-12-21 22:34:11,617 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 22:34:11,618 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [387767666] [2021-12-21 22:34:11,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 22:34:11,618 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 22:34:11,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 22:34:11,623 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-21 22:34:11,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 22:34:11,628 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-21 22:34:11,629 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 22:34:11,629 INFO L85 PathProgramCache]: Analyzing trace with hash 229293385, now seen corresponding path program 1 times [2021-12-21 22:34:11,630 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 22:34:11,630 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [333266248] [2021-12-21 22:34:11,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 22:34:11,630 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 22:34:11,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 22:34:11,677 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-21 22:34:11,677 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 22:34:11,678 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [333266248] [2021-12-21 22:34:11,678 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [333266248] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 22:34:11,678 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 22:34:11,678 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-21 22:34:11,679 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [270317642] [2021-12-21 22:34:11,679 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 22:34:11,795 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 22:34:11,795 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-21 22:34:11,796 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-21 22:34:11,796 INFO L87 Difference]: Start difference. First operand 152 states and 200 transitions. cyclomatic complexity: 51 Second operand has 5 states, 5 states have (on average 5.4) internal successors, (27), 4 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-21 22:34:11,917 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 22:34:11,917 INFO L93 Difference]: Finished difference Result 520 states and 686 transitions. [2021-12-21 22:34:11,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-21 22:34:11,918 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 520 states and 686 transitions. [2021-12-21 22:34:11,933 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 392 [2021-12-21 22:34:11,939 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 520 states to 520 states and 686 transitions. [2021-12-21 22:34:11,939 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 520 [2021-12-21 22:34:11,939 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 520 [2021-12-21 22:34:11,939 INFO L73 IsDeterministic]: Start isDeterministic. Operand 520 states and 686 transitions. [2021-12-21 22:34:11,941 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-21 22:34:11,941 INFO L681 BuchiCegarLoop]: Abstraction has 520 states and 686 transitions. [2021-12-21 22:34:11,942 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 520 states and 686 transitions. [2021-12-21 22:34:11,963 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 520 to 297. [2021-12-21 22:34:11,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 297 states, 297 states have (on average 1.2962962962962963) internal successors, (385), 296 states have internal predecessors, (385), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-21 22:34:11,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 297 states to 297 states and 385 transitions. [2021-12-21 22:34:11,964 INFO L704 BuchiCegarLoop]: Abstraction has 297 states and 385 transitions. [2021-12-21 22:34:11,964 INFO L587 BuchiCegarLoop]: Abstraction has 297 states and 385 transitions. [2021-12-21 22:34:11,965 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-12-21 22:34:11,965 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 297 states and 385 transitions. [2021-12-21 22:34:11,966 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 218 [2021-12-21 22:34:11,966 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-21 22:34:11,966 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-21 22:34:11,967 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-12-21 22:34:11,967 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 22:34:11,967 INFO L791 eck$LassoCheckResult]: Stem: 1286#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(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);call #Ultimate.allocInit(13, 16);call #Ultimate.allocInit(7, 17);call write~init~int(44, 17, 0, 1);call write~init~int(77, 17, 1, 1);call write~init~int(101, 17, 2, 1);call write~init~int(116, 17, 3, 1);call write~init~int(104, 17, 4, 1);call write~init~int(58, 17, 5, 1);call write~init~int(0, 17, 6, 1);call #Ultimate.allocInit(5, 18);call write~init~int(67, 18, 0, 1);call write~init~int(82, 18, 1, 1);call write~init~int(73, 18, 2, 1);call write~init~int(84, 18, 3, 1);call write~init~int(0, 18, 4, 1);call #Ultimate.allocInit(3, 19);call write~init~int(79, 19, 0, 1);call write~init~int(75, 19, 1, 1);call write~init~int(0, 19, 2, 1);call #Ultimate.allocInit(2, 20);call write~init~int(41, 20, 0, 1);call write~init~int(0, 20, 1, 1);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);~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4; 1266#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret50#1, main_~retValue_acc~9#1, main_~tmp~6#1;havoc main_~retValue_acc~9#1;havoc main_~tmp~6#1;assume { :begin_inline_select_helpers } true; 1192#L804 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 1193#L797 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~8#1;havoc valid_product_~retValue_acc~8#1;valid_product_~retValue_acc~8#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~8#1; 1199#L812 main_#t~ret50#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~6#1 := main_#t~ret50#1;havoc main_#t~ret50#1; 1200#L899 assume 0 != main_~tmp~6#1;assume { :begin_inline_setup } true; 1236#L876 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~4#1, test_~tmp___0~1#1, test_~tmp___1~1#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~4#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~1#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 1237#L561-2 [2021-12-21 22:34:11,967 INFO L793 eck$LassoCheckResult]: Loop: 1237#L561-2 assume !false; 1210#L562 assume test_~splverifierCounter~0#1 < 4; 1211#L563 test_~tmp~4#1 := test_#t~nondet35#1;havoc test_#t~nondet35#1; 1291#L571 assume !(0 != test_~tmp~4#1); 1255#L571-2 test_~tmp___0~1#1 := test_#t~nondet36#1;havoc test_#t~nondet36#1; 1256#L581 assume !(0 != test_~tmp___0~1#1); 1282#L581-2 test_~tmp___2~0#1 := test_#t~nondet37#1;havoc test_#t~nondet37#1; 1275#L591 assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 1224#L775 assume { :end_inline_startSystem } true; 1194#L599-2 assume { :begin_inline_timeShift } true; 1195#L630 assume !(0 != ~pumpRunning~0); 1208#L630-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret39#1, processEnvironment_~tmp~5#1;havoc processEnvironment_~tmp~5#1; 1279#L662 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true; 1267#L654-1 assume { :end_inline_processEnvironment__wrappee__base } true; 1213#L662-1 assume { :end_inline_processEnvironment } true; 1214#L637-1 assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret4#1, __utac_acc__Specification3_spec__1_#t~ret5#1, __utac_acc__Specification3_spec__1_#t~ret6#1, __utac_acc__Specification3_spec__1_~tmp~0#1, __utac_acc__Specification3_spec__1_~tmp___0~0#1, __utac_acc__Specification3_spec__1_~tmp___1~0#1;havoc __utac_acc__Specification3_spec__1_~tmp~0#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~0#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~0#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~3#1;havoc isMethaneLevelCritical_~retValue_acc~3#1;isMethaneLevelCritical_~retValue_acc~3#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~3#1; 1314#L501-1 __utac_acc__Specification3_spec__1_#t~ret4#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~0#1 := __utac_acc__Specification3_spec__1_#t~ret4#1;havoc __utac_acc__Specification3_spec__1_#t~ret4#1; 1315#L63 assume !(0 != __utac_acc__Specification3_spec__1_~tmp~0#1);assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~4#1;havoc getWaterLevel_~retValue_acc~4#1;getWaterLevel_~retValue_acc~4#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~4#1; 1295#L533 __utac_acc__Specification3_spec__1_#t~ret5#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification3_spec__1_~tmp___0~0#1 := __utac_acc__Specification3_spec__1_#t~ret5#1;havoc __utac_acc__Specification3_spec__1_#t~ret5#1; 1296#L69 assume !(2 == __utac_acc__Specification3_spec__1_~tmp___0~0#1); 1300#L69-1 assume { :end_inline___utac_acc__Specification3_spec__1 } true; 1297#L647 assume { :end_inline_timeShift } true; 1237#L561-2 [2021-12-21 22:34:11,968 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 22:34:11,968 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 3 times [2021-12-21 22:34:11,968 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 22:34:11,968 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [899186818] [2021-12-21 22:34:11,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 22:34:11,969 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 22:34:11,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 22:34:11,992 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-21 22:34:12,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 22:34:12,021 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-21 22:34:12,021 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 22:34:12,022 INFO L85 PathProgramCache]: Analyzing trace with hash 192019704, now seen corresponding path program 1 times [2021-12-21 22:34:12,022 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 22:34:12,022 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2044275851] [2021-12-21 22:34:12,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 22:34:12,022 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 22:34:12,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 22:34:12,027 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-21 22:34:12,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 22:34:12,032 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-21 22:34:12,032 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 22:34:12,032 INFO L85 PathProgramCache]: Analyzing trace with hash 1308862396, now seen corresponding path program 1 times [2021-12-21 22:34:12,033 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 22:34:12,033 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [211957527] [2021-12-21 22:34:12,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 22:34:12,033 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 22:34:12,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 22:34:12,042 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-21 22:34:12,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 22:34:12,057 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-21 22:34:14,900 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 21.12 10:34:14 BoogieIcfgContainer [2021-12-21 22:34:14,900 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-12-21 22:34:14,901 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-21 22:34:14,901 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-21 22:34:14,901 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-21 22:34:14,902 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 10:34:10" (3/4) ... [2021-12-21 22:34:14,904 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2021-12-21 22:34:14,947 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-12-21 22:34:14,947 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-21 22:34:14,948 INFO L158 Benchmark]: Toolchain (without parser) took 5391.15ms. Allocated memory was 83.9MB in the beginning and 136.3MB in the end (delta: 52.4MB). Free memory was 54.7MB in the beginning and 76.9MB in the end (delta: -22.2MB). Peak memory consumption was 30.3MB. Max. memory is 16.1GB. [2021-12-21 22:34:14,948 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 83.9MB. Free memory was 43.4MB in the beginning and 43.4MB in the end (delta: 45.0kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-21 22:34:14,949 INFO L158 Benchmark]: CACSL2BoogieTranslator took 454.25ms. Allocated memory was 83.9MB in the beginning and 107.0MB in the end (delta: 23.1MB). Free memory was 54.3MB in the beginning and 75.9MB in the end (delta: -21.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-12-21 22:34:14,949 INFO L158 Benchmark]: Boogie Procedure Inliner took 72.02ms. Allocated memory is still 107.0MB. Free memory was 75.9MB in the beginning and 73.0MB in the end (delta: 3.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-12-21 22:34:14,950 INFO L158 Benchmark]: Boogie Preprocessor took 29.02ms. Allocated memory is still 107.0MB. Free memory was 73.0MB in the beginning and 71.3MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-21 22:34:14,950 INFO L158 Benchmark]: RCFGBuilder took 581.79ms. Allocated memory is still 107.0MB. Free memory was 71.3MB in the beginning and 84.5MB in the end (delta: -13.1MB). Peak memory consumption was 24.0MB. Max. memory is 16.1GB. [2021-12-21 22:34:14,951 INFO L158 Benchmark]: BuchiAutomizer took 4201.46ms. Allocated memory was 107.0MB in the beginning and 136.3MB in the end (delta: 29.4MB). Free memory was 84.5MB in the beginning and 78.9MB in the end (delta: 5.5MB). Peak memory consumption was 69.1MB. Max. memory is 16.1GB. [2021-12-21 22:34:14,951 INFO L158 Benchmark]: Witness Printer took 46.38ms. Allocated memory is still 136.3MB. Free memory was 78.9MB in the beginning and 76.9MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-21 22:34:14,954 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 83.9MB. Free memory was 43.4MB in the beginning and 43.4MB in the end (delta: 45.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 454.25ms. Allocated memory was 83.9MB in the beginning and 107.0MB in the end (delta: 23.1MB). Free memory was 54.3MB in the beginning and 75.9MB in the end (delta: -21.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 72.02ms. Allocated memory is still 107.0MB. Free memory was 75.9MB in the beginning and 73.0MB in the end (delta: 3.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 29.02ms. Allocated memory is still 107.0MB. Free memory was 73.0MB in the beginning and 71.3MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 581.79ms. Allocated memory is still 107.0MB. Free memory was 71.3MB in the beginning and 84.5MB in the end (delta: -13.1MB). Peak memory consumption was 24.0MB. Max. memory is 16.1GB. * BuchiAutomizer took 4201.46ms. Allocated memory was 107.0MB in the beginning and 136.3MB in the end (delta: 29.4MB). Free memory was 84.5MB in the beginning and 78.9MB in the end (delta: 5.5MB). Peak memory consumption was 69.1MB. Max. memory is 16.1GB. * Witness Printer took 46.38ms. Allocated memory is still 136.3MB. Free memory was 78.9MB in the beginning and 76.9MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 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 6 locations. The remainder module has 297 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 4.1s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 3.5s. Construction of modules took 0.1s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 0. Minimization of det autom 2. Minimization of nondet autom 0. Automata minimization 0.1s AutomataMinimizationTime, 2 MinimizatonAttempts, 397 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 297 states and ocurred in iteration 2. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1139 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1139 mSDsluCounter, 1659 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1359 mSDsCounter, 36 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 131 IncrementalHoareTripleChecker+Invalid, 167 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 36 mSolverCounterUnsat, 300 mSDtfsCounter, 131 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI0 SFLT0 conc2 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 561]: 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, NULL=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7375e005=0, methaneLevelCritical=0, tmp___0=1, \result=0, tmp=0, retValue_acc=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3e59aa1d=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6b745d9c=29, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@580752bc=0, \result=1, retValue_acc=0, retValue_acc=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2f35f5d4=0, tmp___1=0, tmp___2=29, tmp=1, cleanupTimeShifts=4, \result=0, tmp=0, head=0, \result=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@72c29699=0, tmp___1=0, NULL=0, retValue_acc=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@59a7e734=0, waterLevel=1, systemActive=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3c508882=0, tmp=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@25d4c95f=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 561]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L257] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L458] int waterLevel = 1; [L459] int methaneLevelCritical = 0; [L623] int pumpRunning = 0; [L624] int systemActive = 1; [L817] int cleanupTimeShifts = 4; [L890] int retValue_acc ; [L891] int tmp ; [L895] FCALL select_helpers() [L896] FCALL select_features() [L897] CALL, EXPR valid_product() [L808] int retValue_acc ; [L811] retValue_acc = 1 [L812] return (retValue_acc); [L897] RET, EXPR valid_product() [L897] tmp = valid_product() [L899] COND TRUE \read(tmp) [L901] FCALL setup() [L902] CALL runTest() [L884] CALL test() [L552] int splverifierCounter ; [L553] int tmp ; [L554] int tmp___0 ; [L555] int tmp___1 ; [L556] int tmp___2 ; [L559] splverifierCounter = 0 Loop: [L561] COND TRUE 1 [L563] COND TRUE splverifierCounter < 4 [L569] tmp = __VERIFIER_nondet_int() [L571] COND FALSE !(\read(tmp)) [L579] tmp___0 = __VERIFIER_nondet_int() [L581] COND FALSE !(\read(tmp___0)) [L589] tmp___2 = __VERIFIER_nondet_int() [L591] COND TRUE \read(tmp___2) [L593] CALL startSystem() [L774] systemActive = 1 [L593] RET startSystem() [L608] CALL timeShift() [L630] COND FALSE !(\read(pumpRunning)) [L637] COND TRUE \read(systemActive) [L639] CALL processEnvironment() [L659] int tmp ; [L662] COND FALSE !(\read(pumpRunning)) [L677] FCALL processEnvironment__wrappee__base() [L639] RET processEnvironment() [L645] CALL __utac_acc__Specification3_spec__1() [L55] int tmp ; [L56] int tmp___0 ; [L57] int tmp___1 ; [L61] CALL, EXPR isMethaneLevelCritical() [L497] int retValue_acc ; [L500] retValue_acc = methaneLevelCritical [L501] return (retValue_acc); [L61] RET, EXPR isMethaneLevelCritical() [L61] tmp = isMethaneLevelCritical() [L63] COND FALSE !(\read(tmp)) [L67] CALL, EXPR getWaterLevel() [L529] int retValue_acc ; [L532] retValue_acc = waterLevel [L533] return (retValue_acc); [L67] RET, EXPR getWaterLevel() [L67] tmp___0 = getWaterLevel() [L69] COND FALSE !(tmp___0 == 2) [L645] RET __utac_acc__Specification3_spec__1() [L608] RET timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2021-12-21 22:34:14,993 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM)