./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/minepump_spec1_product28.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_product28.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 ecbd3b7927e701d55fc39288fc091a7415141c93c89521192fc4dc52b10e4c6c --- Real Ultimate output --- This is Ultimate 0.2.2-dev-03d7b7b [2022-02-21 04:15:16,895 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-21 04:15:16,896 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-21 04:15:16,914 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-02-21 04:15:16,918 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-02-21 04:15:16,921 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-02-21 04:15:16,922 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-02-21 04:15:16,924 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-02-21 04:15:16,926 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-02-21 04:15:16,928 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-02-21 04:15:16,929 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-02-21 04:15:16,930 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-02-21 04:15:16,931 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-21 04:15:16,935 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-21 04:15:16,937 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-21 04:15:16,939 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-21 04:15:16,940 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-21 04:15:16,940 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-21 04:15:16,941 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-21 04:15:16,945 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-21 04:15:16,949 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-21 04:15:16,949 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-21 04:15:16,950 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-21 04:15:16,951 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-21 04:15:16,952 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-02-21 04:15:16,952 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-02-21 04:15:16,953 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-02-21 04:15:16,953 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-02-21 04:15:16,953 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-02-21 04:15:16,954 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-02-21 04:15:16,954 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-02-21 04:15:16,955 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-02-21 04:15:16,955 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-02-21 04:15:16,956 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-02-21 04:15:16,956 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-02-21 04:15:16,957 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-02-21 04:15:16,957 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-02-21 04:15:16,957 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-02-21 04:15:16,958 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-21 04:15:16,958 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-21 04:15:16,959 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-21 04:15:16,960 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2022-02-21 04:15:16,986 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-21 04:15:16,986 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-21 04:15:16,986 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-02-21 04:15:16,987 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-02-21 04:15:16,988 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-02-21 04:15:16,988 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-02-21 04:15:16,988 INFO L138 SettingsManager]: * Use SBE=true [2022-02-21 04:15:16,988 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-02-21 04:15:16,989 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-02-21 04:15:16,989 INFO L138 SettingsManager]: * Use old map elimination=false [2022-02-21 04:15:16,989 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-02-21 04:15:16,990 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-02-21 04:15:16,990 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-02-21 04:15:16,990 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-21 04:15:16,990 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-21 04:15:16,990 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-02-21 04:15:16,990 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-21 04:15:16,990 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-21 04:15:16,991 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-21 04:15:16,991 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-02-21 04:15:16,991 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-02-21 04:15:16,991 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-02-21 04:15:16,991 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-21 04:15:16,991 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-21 04:15:16,992 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-02-21 04:15:16,992 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-21 04:15:16,992 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-02-21 04:15:16,992 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-21 04:15:16,992 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-21 04:15:16,993 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-21 04:15:16,993 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-02-21 04:15:16,994 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-02-21 04:15:16,994 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ecbd3b7927e701d55fc39288fc091a7415141c93c89521192fc4dc52b10e4c6c [2022-02-21 04:15:17,161 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-21 04:15:17,179 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-21 04:15:17,181 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-21 04:15:17,182 INFO L271 PluginConnector]: Initializing CDTParser... [2022-02-21 04:15:17,182 INFO L275 PluginConnector]: CDTParser initialized [2022-02-21 04:15:17,183 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec1_product28.cil.c [2022-02-21 04:15:17,235 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/47ab0545a/f842652000a44e4ca7fcbffa5f355b25/FLAGe15568f0a [2022-02-21 04:15:17,651 INFO L306 CDTParser]: Found 1 translation units. [2022-02-21 04:15:17,651 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec1_product28.cil.c [2022-02-21 04:15:17,662 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/47ab0545a/f842652000a44e4ca7fcbffa5f355b25/FLAGe15568f0a [2022-02-21 04:15:17,675 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/47ab0545a/f842652000a44e4ca7fcbffa5f355b25 [2022-02-21 04:15:17,677 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-21 04:15:17,679 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-02-21 04:15:17,680 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-02-21 04:15:17,680 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-02-21 04:15:17,682 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-02-21 04:15:17,683 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.02 04:15:17" (1/1) ... [2022-02-21 04:15:17,684 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4e804465 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:15:17, skipping insertion in model container [2022-02-21 04:15:17,684 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.02 04:15:17" (1/1) ... [2022-02-21 04:15:17,689 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-02-21 04:15:17,725 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-02-21 04:15:17,852 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_product28.cil.c[1605,1618] [2022-02-21 04:15:17,925 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-21 04:15:17,932 INFO L203 MainTranslator]: Completed pre-run [2022-02-21 04:15:17,941 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_product28.cil.c[1605,1618] [2022-02-21 04:15:17,997 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-21 04:15:18,010 INFO L208 MainTranslator]: Completed translation [2022-02-21 04:15:18,016 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:15:18 WrapperNode [2022-02-21 04:15:18,016 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-02-21 04:15:18,017 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-02-21 04:15:18,017 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-02-21 04:15:18,017 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-02-21 04:15:18,022 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:15:18" (1/1) ... [2022-02-21 04:15:18,042 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:15:18" (1/1) ... [2022-02-21 04:15:18,082 INFO L137 Inliner]: procedures = 55, calls = 154, calls flagged for inlining = 51, calls inlined = 50, statements flattened = 387 [2022-02-21 04:15:18,082 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-02-21 04:15:18,083 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-21 04:15:18,083 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-21 04:15:18,083 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-21 04:15:18,089 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:15:18" (1/1) ... [2022-02-21 04:15:18,089 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:15:18" (1/1) ... [2022-02-21 04:15:18,097 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:15:18" (1/1) ... [2022-02-21 04:15:18,097 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:15:18" (1/1) ... [2022-02-21 04:15:18,102 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:15:18" (1/1) ... [2022-02-21 04:15:18,106 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:15:18" (1/1) ... [2022-02-21 04:15:18,108 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:15:18" (1/1) ... [2022-02-21 04:15:18,110 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-21 04:15:18,111 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-21 04:15:18,111 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-21 04:15:18,111 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-21 04:15:18,112 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:15:18" (1/1) ... [2022-02-21 04:15:18,130 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-02-21 04:15:18,144 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-21 04:15:18,154 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 04:15:18,157 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 04:15:18,194 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-02-21 04:15:18,194 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-02-21 04:15:18,194 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-21 04:15:18,194 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-21 04:15:18,253 INFO L234 CfgBuilder]: Building ICFG [2022-02-21 04:15:18,254 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-21 04:15:18,574 INFO L275 CfgBuilder]: Performing block encoding [2022-02-21 04:15:18,579 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-21 04:15:18,580 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-02-21 04:15:18,581 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 04:15:18 BoogieIcfgContainer [2022-02-21 04:15:18,581 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-21 04:15:18,582 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-02-21 04:15:18,582 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-02-21 04:15:18,587 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-02-21 04:15:18,587 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-02-21 04:15:18,588 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 21.02 04:15:17" (1/3) ... [2022-02-21 04:15:18,588 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@634f0798 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.02 04:15:18, skipping insertion in model container [2022-02-21 04:15:18,589 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-02-21 04:15:18,589 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:15:18" (2/3) ... [2022-02-21 04:15:18,589 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@634f0798 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.02 04:15:18, skipping insertion in model container [2022-02-21 04:15:18,590 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-02-21 04:15:18,590 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 04:15:18" (3/3) ... [2022-02-21 04:15:18,591 INFO L388 chiAutomizerObserver]: Analyzing ICFG minepump_spec1_product28.cil.c [2022-02-21 04:15:18,629 INFO L359 BuchiCegarLoop]: Interprodecural is true [2022-02-21 04:15:18,629 INFO L360 BuchiCegarLoop]: Hoare is false [2022-02-21 04:15:18,630 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-02-21 04:15:18,630 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-02-21 04:15:18,630 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-02-21 04:15:18,630 INFO L364 BuchiCegarLoop]: Difference is false [2022-02-21 04:15:18,630 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-02-21 04:15:18,630 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2022-02-21 04:15:18,647 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 107 states, 106 states have (on average 1.3584905660377358) internal successors, (144), 106 states have internal predecessors, (144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:15:18,670 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 69 [2022-02-21 04:15:18,671 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:15:18,671 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:15:18,675 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:15:18,675 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 04:15:18,676 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2022-02-21 04:15:18,677 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 107 states, 106 states have (on average 1.3584905660377358) internal successors, (144), 106 states have internal predecessors, (144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:15:18,690 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 69 [2022-02-21 04:15:18,691 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:15:18,691 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:15:18,692 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:15:18,692 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 04:15:18,695 INFO L791 eck$LassoCheckResult]: Stem: 99#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~ret51#1, main_~retValue_acc~11#1, main_~tmp~8#1;havoc main_~retValue_acc~11#1;havoc main_~tmp~8#1;assume { :begin_inline_select_helpers } true; 55#L843true assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 13#L836true assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~10#1;havoc valid_product_~retValue_acc~10#1;valid_product_~retValue_acc~10#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~10#1; 65#L851true main_#t~ret51#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~8#1 := main_#t~ret51#1;havoc main_#t~ret51#1; 93#L938true assume 0 != main_~tmp~8#1;assume { :begin_inline_setup } true; 77#L915true assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet32#1, test_#t~nondet33#1, test_#t~nondet34#1, test_#t~nondet35#1, test_~splverifierCounter~0#1, test_~tmp~3#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~3#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 103#L535-2true [2022-02-21 04:15:18,696 INFO L793 eck$LassoCheckResult]: Loop: 103#L535-2true assume !false; 49#L536true assume test_~splverifierCounter~0#1 < 4; 70#L537true test_~tmp~3#1 := test_#t~nondet32#1;havoc test_#t~nondet32#1; 20#L545true assume !(0 != test_~tmp~3#1); 58#L545-2true test_~tmp___0~0#1 := test_#t~nondet33#1;havoc test_#t~nondet33#1; 105#L555true assume !(0 != test_~tmp___0~0#1); 43#L555-2true test_~tmp___2~0#1 := test_#t~nondet34#1;havoc test_#t~nondet34#1; 18#L565true assume !(0 != test_~tmp___2~0#1);test_~tmp___1~0#1 := test_#t~nondet35#1;havoc test_#t~nondet35#1; 40#L573true assume !(0 != test_~tmp___1~0#1); 91#L573-2true assume { :begin_inline_timeShift } true; 17#L606true assume !(0 != ~pumpRunning~0); 75#L606-2true assume !(0 != ~systemActive~0); 101#L613-1true assume { :begin_inline___utac_acc__Specification1_spec__1 } true;havoc __utac_acc__Specification1_spec__1_#t~ret48#1, __utac_acc__Specification1_spec__1_#t~ret49#1, __utac_acc__Specification1_spec__1_~tmp~7#1, __utac_acc__Specification1_spec__1_~tmp___0~2#1;havoc __utac_acc__Specification1_spec__1_~tmp~7#1;havoc __utac_acc__Specification1_spec__1_~tmp___0~2#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~3#1;havoc isMethaneLevelCritical_~retValue_acc~3#1;isMethaneLevelCritical_~retValue_acc~3#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~3#1; 56#L475true __utac_acc__Specification1_spec__1_#t~ret48#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification1_spec__1_~tmp~7#1 := __utac_acc__Specification1_spec__1_#t~ret48#1;havoc __utac_acc__Specification1_spec__1_#t~ret48#1; 15#L800true assume !(0 != __utac_acc__Specification1_spec__1_~tmp~7#1); 98#L800-1true assume { :end_inline___utac_acc__Specification1_spec__1 } true; 6#L623true assume { :end_inline_timeShift } true; 103#L535-2true [2022-02-21 04:15:18,699 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:15:18,700 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 1 times [2022-02-21 04:15:18,707 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:15:18,708 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [639946965] [2022-02-21 04:15:18,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:15:18,708 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:15:18,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:15:18,801 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:15:18,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:15:18,836 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:15:18,838 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:15:18,838 INFO L85 PathProgramCache]: Analyzing trace with hash 1380834287, now seen corresponding path program 1 times [2022-02-21 04:15:18,838 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:15:18,838 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1017105944] [2022-02-21 04:15:18,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:15:18,838 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:15:18,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:15:18,862 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:15:18,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:15:18,868 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:15:18,877 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:15:18,877 INFO L85 PathProgramCache]: Analyzing trace with hash 449152683, now seen corresponding path program 1 times [2022-02-21 04:15:18,877 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:15:18,877 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [895191727] [2022-02-21 04:15:18,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:15:18,878 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:15:18,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-21 04:15:19,041 INFO L290 TraceCheckUtils]: 0: Hoare triple {115#true} assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(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; {117#(= 1 ~systemActive~0)} is VALID [2022-02-21 04:15:19,042 INFO L290 TraceCheckUtils]: 1: Hoare triple {117#(= 1 ~systemActive~0)} assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret51#1, main_~retValue_acc~11#1, main_~tmp~8#1;havoc main_~retValue_acc~11#1;havoc main_~tmp~8#1;assume { :begin_inline_select_helpers } true; {117#(= 1 ~systemActive~0)} is VALID [2022-02-21 04:15:19,042 INFO L290 TraceCheckUtils]: 2: Hoare triple {117#(= 1 ~systemActive~0)} assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; {117#(= 1 ~systemActive~0)} is VALID [2022-02-21 04:15:19,043 INFO L290 TraceCheckUtils]: 3: Hoare triple {117#(= 1 ~systemActive~0)} assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~10#1;havoc valid_product_~retValue_acc~10#1;valid_product_~retValue_acc~10#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~10#1; {118#(= |ULTIMATE.start_valid_product_#res#1| ~systemActive~0)} is VALID [2022-02-21 04:15:19,043 INFO L290 TraceCheckUtils]: 4: Hoare triple {118#(= |ULTIMATE.start_valid_product_#res#1| ~systemActive~0)} main_#t~ret51#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~8#1 := main_#t~ret51#1;havoc main_#t~ret51#1; {119#(= |ULTIMATE.start_main_~tmp~8#1| ~systemActive~0)} is VALID [2022-02-21 04:15:19,044 INFO L290 TraceCheckUtils]: 5: Hoare triple {119#(= |ULTIMATE.start_main_~tmp~8#1| ~systemActive~0)} assume 0 != main_~tmp~8#1;assume { :begin_inline_setup } true; {120#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:15:19,044 INFO L290 TraceCheckUtils]: 6: Hoare triple {120#(not (= 0 ~systemActive~0))} assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet32#1, test_#t~nondet33#1, test_#t~nondet34#1, test_#t~nondet35#1, test_~splverifierCounter~0#1, test_~tmp~3#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~3#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; {120#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:15:19,045 INFO L290 TraceCheckUtils]: 7: Hoare triple {120#(not (= 0 ~systemActive~0))} assume !false; {120#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:15:19,045 INFO L290 TraceCheckUtils]: 8: Hoare triple {120#(not (= 0 ~systemActive~0))} assume test_~splverifierCounter~0#1 < 4; {120#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:15:19,046 INFO L290 TraceCheckUtils]: 9: Hoare triple {120#(not (= 0 ~systemActive~0))} test_~tmp~3#1 := test_#t~nondet32#1;havoc test_#t~nondet32#1; {120#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:15:19,046 INFO L290 TraceCheckUtils]: 10: Hoare triple {120#(not (= 0 ~systemActive~0))} assume !(0 != test_~tmp~3#1); {120#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:15:19,046 INFO L290 TraceCheckUtils]: 11: Hoare triple {120#(not (= 0 ~systemActive~0))} test_~tmp___0~0#1 := test_#t~nondet33#1;havoc test_#t~nondet33#1; {120#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:15:19,047 INFO L290 TraceCheckUtils]: 12: Hoare triple {120#(not (= 0 ~systemActive~0))} assume !(0 != test_~tmp___0~0#1); {120#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:15:19,047 INFO L290 TraceCheckUtils]: 13: Hoare triple {120#(not (= 0 ~systemActive~0))} test_~tmp___2~0#1 := test_#t~nondet34#1;havoc test_#t~nondet34#1; {120#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:15:19,048 INFO L290 TraceCheckUtils]: 14: Hoare triple {120#(not (= 0 ~systemActive~0))} assume !(0 != test_~tmp___2~0#1);test_~tmp___1~0#1 := test_#t~nondet35#1;havoc test_#t~nondet35#1; {120#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:15:19,048 INFO L290 TraceCheckUtils]: 15: Hoare triple {120#(not (= 0 ~systemActive~0))} assume !(0 != test_~tmp___1~0#1); {120#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:15:19,049 INFO L290 TraceCheckUtils]: 16: Hoare triple {120#(not (= 0 ~systemActive~0))} assume { :begin_inline_timeShift } true; {120#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:15:19,049 INFO L290 TraceCheckUtils]: 17: Hoare triple {120#(not (= 0 ~systemActive~0))} assume !(0 != ~pumpRunning~0); {120#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:15:19,049 INFO L290 TraceCheckUtils]: 18: Hoare triple {120#(not (= 0 ~systemActive~0))} assume !(0 != ~systemActive~0); {116#false} is VALID [2022-02-21 04:15:19,050 INFO L290 TraceCheckUtils]: 19: Hoare triple {116#false} assume { :begin_inline___utac_acc__Specification1_spec__1 } true;havoc __utac_acc__Specification1_spec__1_#t~ret48#1, __utac_acc__Specification1_spec__1_#t~ret49#1, __utac_acc__Specification1_spec__1_~tmp~7#1, __utac_acc__Specification1_spec__1_~tmp___0~2#1;havoc __utac_acc__Specification1_spec__1_~tmp~7#1;havoc __utac_acc__Specification1_spec__1_~tmp___0~2#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~3#1;havoc isMethaneLevelCritical_~retValue_acc~3#1;isMethaneLevelCritical_~retValue_acc~3#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~3#1; {116#false} is VALID [2022-02-21 04:15:19,050 INFO L290 TraceCheckUtils]: 20: Hoare triple {116#false} __utac_acc__Specification1_spec__1_#t~ret48#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification1_spec__1_~tmp~7#1 := __utac_acc__Specification1_spec__1_#t~ret48#1;havoc __utac_acc__Specification1_spec__1_#t~ret48#1; {116#false} is VALID [2022-02-21 04:15:19,051 INFO L290 TraceCheckUtils]: 21: Hoare triple {116#false} assume !(0 != __utac_acc__Specification1_spec__1_~tmp~7#1); {116#false} is VALID [2022-02-21 04:15:19,051 INFO L290 TraceCheckUtils]: 22: Hoare triple {116#false} assume { :end_inline___utac_acc__Specification1_spec__1 } true; {116#false} is VALID [2022-02-21 04:15:19,051 INFO L290 TraceCheckUtils]: 23: Hoare triple {116#false} assume { :end_inline_timeShift } true; {116#false} is VALID [2022-02-21 04:15:19,052 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 04:15:19,053 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-21 04:15:19,053 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [895191727] [2022-02-21 04:15:19,054 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [895191727] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-21 04:15:19,054 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-21 04:15:19,054 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-21 04:15:19,054 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2020121318] [2022-02-21 04:15:19,055 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-21 04:15:19,191 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-21 04:15:19,212 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-02-21 04:15:19,213 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-02-21 04:15:19,217 INFO L87 Difference]: Start difference. First operand has 107 states, 106 states have (on average 1.3584905660377358) internal successors, (144), 106 states have internal predecessors, (144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 6 states, 6 states have (on average 4.0) internal successors, (24), 5 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:15:19,928 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:15:19,928 INFO L93 Difference]: Finished difference Result 360 states and 458 transitions. [2022-02-21 04:15:19,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-02-21 04:15:19,929 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with has 6 states, 6 states have (on average 4.0) internal successors, (24), 5 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:15:19,950 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 24 edges. 24 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-02-21 04:15:19,954 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 360 states and 458 transitions. [2022-02-21 04:15:19,967 INFO L131 ngComponentsAnalysis]: Automaton has 6 accepting balls. 232 [2022-02-21 04:15:19,982 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 360 states to 320 states and 418 transitions. [2022-02-21 04:15:19,983 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 320 [2022-02-21 04:15:19,984 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 320 [2022-02-21 04:15:19,984 INFO L73 IsDeterministic]: Start isDeterministic. Operand 320 states and 418 transitions. [2022-02-21 04:15:19,985 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-02-21 04:15:19,985 INFO L681 BuchiCegarLoop]: Abstraction has 320 states and 418 transitions. [2022-02-21 04:15:19,996 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 320 states and 418 transitions. [2022-02-21 04:15:20,008 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 320 to 146. [2022-02-21 04:15:20,008 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-02-21 04:15:20,009 INFO L82 GeneralOperation]: Start isEquivalent. First operand 320 states and 418 transitions. Second operand has 146 states, 146 states have (on average 1.3082191780821917) internal successors, (191), 145 states have internal predecessors, (191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:15:20,010 INFO L74 IsIncluded]: Start isIncluded. First operand 320 states and 418 transitions. Second operand has 146 states, 146 states have (on average 1.3082191780821917) internal successors, (191), 145 states have internal predecessors, (191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:15:20,011 INFO L87 Difference]: Start difference. First operand 320 states and 418 transitions. Second operand has 146 states, 146 states have (on average 1.3082191780821917) internal successors, (191), 145 states have internal predecessors, (191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:15:20,019 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:15:20,020 INFO L93 Difference]: Finished difference Result 320 states and 418 transitions. [2022-02-21 04:15:20,020 INFO L276 IsEmpty]: Start isEmpty. Operand 320 states and 418 transitions. [2022-02-21 04:15:20,022 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:15:20,022 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:15:20,023 INFO L74 IsIncluded]: Start isIncluded. First operand has 146 states, 146 states have (on average 1.3082191780821917) internal successors, (191), 145 states have internal predecessors, (191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand 320 states and 418 transitions. [2022-02-21 04:15:20,023 INFO L87 Difference]: Start difference. First operand has 146 states, 146 states have (on average 1.3082191780821917) internal successors, (191), 145 states have internal predecessors, (191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand 320 states and 418 transitions. [2022-02-21 04:15:20,031 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:15:20,031 INFO L93 Difference]: Finished difference Result 320 states and 418 transitions. [2022-02-21 04:15:20,031 INFO L276 IsEmpty]: Start isEmpty. Operand 320 states and 418 transitions. [2022-02-21 04:15:20,032 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:15:20,032 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:15:20,032 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-02-21 04:15:20,033 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-02-21 04:15:20,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 146 states, 146 states have (on average 1.3082191780821917) internal successors, (191), 145 states have internal predecessors, (191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:15:20,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 191 transitions. [2022-02-21 04:15:20,037 INFO L704 BuchiCegarLoop]: Abstraction has 146 states and 191 transitions. [2022-02-21 04:15:20,037 INFO L587 BuchiCegarLoop]: Abstraction has 146 states and 191 transitions. [2022-02-21 04:15:20,037 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2022-02-21 04:15:20,037 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 146 states and 191 transitions. [2022-02-21 04:15:20,038 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 105 [2022-02-21 04:15:20,038 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:15:20,038 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:15:20,039 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:15:20,039 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:15:20,039 INFO L791 eck$LassoCheckResult]: Stem: 576#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; 567#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret51#1, main_~retValue_acc~11#1, main_~tmp~8#1;havoc main_~retValue_acc~11#1;havoc main_~tmp~8#1;assume { :begin_inline_select_helpers } true; 503#L843 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 504#L836 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~10#1;havoc valid_product_~retValue_acc~10#1;valid_product_~retValue_acc~10#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~10#1; 525#L851 main_#t~ret51#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~8#1 := main_#t~ret51#1;havoc main_#t~ret51#1; 526#L938 assume 0 != main_~tmp~8#1;assume { :begin_inline_setup } true; 552#L915 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet32#1, test_#t~nondet33#1, test_#t~nondet34#1, test_#t~nondet35#1, test_~splverifierCounter~0#1, test_~tmp~3#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~3#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 491#L535-2 [2022-02-21 04:15:20,039 INFO L793 eck$LassoCheckResult]: Loop: 491#L535-2 assume !false; 578#L536 assume test_~splverifierCounter~0#1 < 4; 538#L537 test_~tmp~3#1 := test_#t~nondet32#1;havoc test_#t~nondet32#1; 539#L545 assume !(0 != test_~tmp~3#1); 510#L545-2 test_~tmp___0~0#1 := test_#t~nondet33#1;havoc test_#t~nondet33#1; 511#L555 assume !(0 != test_~tmp___0~0#1); 529#L555-2 test_~tmp___2~0#1 := test_#t~nondet34#1;havoc test_#t~nondet34#1; 540#L565 assume !(0 != test_~tmp___2~0#1);test_~tmp___1~0#1 := test_#t~nondet35#1;havoc test_#t~nondet35#1; 541#L573 assume !(0 != test_~tmp___1~0#1); 569#L573-2 assume { :begin_inline_timeShift } true; 535#L606 assume !(0 != ~pumpRunning~0); 536#L606-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret36#1, processEnvironment_~tmp~4#1;havoc processEnvironment_~tmp~4#1; 549#L638 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true; 565#L630-1 assume { :end_inline_processEnvironment__wrappee__base } true; 517#L638-1 assume { :end_inline_processEnvironment } true; 572#L613-1 assume { :begin_inline___utac_acc__Specification1_spec__1 } true;havoc __utac_acc__Specification1_spec__1_#t~ret48#1, __utac_acc__Specification1_spec__1_#t~ret49#1, __utac_acc__Specification1_spec__1_~tmp~7#1, __utac_acc__Specification1_spec__1_~tmp___0~2#1;havoc __utac_acc__Specification1_spec__1_~tmp~7#1;havoc __utac_acc__Specification1_spec__1_~tmp___0~2#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~3#1;havoc isMethaneLevelCritical_~retValue_acc~3#1;isMethaneLevelCritical_~retValue_acc~3#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~3#1; 505#L475 __utac_acc__Specification1_spec__1_#t~ret48#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification1_spec__1_~tmp~7#1 := __utac_acc__Specification1_spec__1_#t~ret48#1;havoc __utac_acc__Specification1_spec__1_#t~ret48#1; 506#L800 assume !(0 != __utac_acc__Specification1_spec__1_~tmp~7#1); 521#L800-1 assume { :end_inline___utac_acc__Specification1_spec__1 } true; 490#L623 assume { :end_inline_timeShift } true; 491#L535-2 [2022-02-21 04:15:20,040 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:15:20,040 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 2 times [2022-02-21 04:15:20,040 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:15:20,040 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1087687420] [2022-02-21 04:15:20,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:15:20,041 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:15:20,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:15:20,051 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:15:20,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:15:20,061 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:15:20,061 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:15:20,061 INFO L85 PathProgramCache]: Analyzing trace with hash 171627365, now seen corresponding path program 1 times [2022-02-21 04:15:20,062 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:15:20,062 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1350921012] [2022-02-21 04:15:20,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:15:20,062 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:15:20,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:15:20,066 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:15:20,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:15:20,070 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:15:20,070 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:15:20,070 INFO L85 PathProgramCache]: Analyzing trace with hash -1476370647, now seen corresponding path program 1 times [2022-02-21 04:15:20,071 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:15:20,071 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1373769429] [2022-02-21 04:15:20,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:15:20,071 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:15:20,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:15:20,081 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:15:20,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:15:20,092 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:15:22,521 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 21.02 04:15:22 BoogieIcfgContainer [2022-02-21 04:15:22,521 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-02-21 04:15:22,522 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-02-21 04:15:22,522 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-02-21 04:15:22,522 INFO L275 PluginConnector]: Witness Printer initialized [2022-02-21 04:15:22,522 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 04:15:18" (3/4) ... [2022-02-21 04:15:22,524 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2022-02-21 04:15:22,559 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-02-21 04:15:22,559 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-02-21 04:15:22,560 INFO L158 Benchmark]: Toolchain (without parser) took 4881.24ms. Allocated memory was 104.9MB in the beginning and 157.3MB in the end (delta: 52.4MB). Free memory was 72.0MB in the beginning and 92.7MB in the end (delta: -20.7MB). Peak memory consumption was 30.9MB. Max. memory is 16.1GB. [2022-02-21 04:15:22,560 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 104.9MB. Free memory is still 58.2MB. There was no memory consumed. Max. memory is 16.1GB. [2022-02-21 04:15:22,561 INFO L158 Benchmark]: CACSL2BoogieTranslator took 336.78ms. Allocated memory is still 104.9MB. Free memory was 71.7MB in the beginning and 67.6MB in the end (delta: 4.1MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-02-21 04:15:22,561 INFO L158 Benchmark]: Boogie Procedure Inliner took 65.33ms. Allocated memory is still 104.9MB. Free memory was 67.6MB in the beginning and 64.2MB in the end (delta: 3.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-02-21 04:15:22,561 INFO L158 Benchmark]: Boogie Preprocessor took 27.50ms. Allocated memory is still 104.9MB. Free memory was 64.2MB in the beginning and 62.5MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. [2022-02-21 04:15:22,562 INFO L158 Benchmark]: RCFGBuilder took 470.33ms. Allocated memory was 104.9MB in the beginning and 130.0MB in the end (delta: 25.2MB). Free memory was 62.5MB in the beginning and 100.4MB in the end (delta: -37.8MB). Peak memory consumption was 24.4MB. Max. memory is 16.1GB. [2022-02-21 04:15:22,562 INFO L158 Benchmark]: BuchiAutomizer took 3939.36ms. Allocated memory was 130.0MB in the beginning and 157.3MB in the end (delta: 27.3MB). Free memory was 100.4MB in the beginning and 94.8MB in the end (delta: 5.6MB). Peak memory consumption was 81.1MB. Max. memory is 16.1GB. [2022-02-21 04:15:22,562 INFO L158 Benchmark]: Witness Printer took 37.51ms. Allocated memory is still 157.3MB. Free memory was 94.8MB in the beginning and 92.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-02-21 04:15:22,564 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 0.18ms. Allocated memory is still 104.9MB. Free memory is still 58.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 336.78ms. Allocated memory is still 104.9MB. Free memory was 71.7MB in the beginning and 67.6MB in the end (delta: 4.1MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 65.33ms. Allocated memory is still 104.9MB. Free memory was 67.6MB in the beginning and 64.2MB in the end (delta: 3.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 27.50ms. Allocated memory is still 104.9MB. Free memory was 64.2MB in the beginning and 62.5MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 470.33ms. Allocated memory was 104.9MB in the beginning and 130.0MB in the end (delta: 25.2MB). Free memory was 62.5MB in the beginning and 100.4MB in the end (delta: -37.8MB). Peak memory consumption was 24.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 3939.36ms. Allocated memory was 130.0MB in the beginning and 157.3MB in the end (delta: 27.3MB). Free memory was 100.4MB in the beginning and 94.8MB in the end (delta: 5.6MB). Peak memory consumption was 81.1MB. Max. memory is 16.1GB. * Witness Printer took 37.51ms. Allocated memory is still 157.3MB. Free memory was 94.8MB in the beginning and 92.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 1 terminating modules (1 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.1 modules have a trivial ranking function, the largest among these consists of 6 locations. The remainder module has 146 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 3.8s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 2.9s. Construction of modules took 0.0s. Büchi inclusion checks took 0.6s. Highest rank in rank-based complementation 0. Minimization of det autom 1. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 174 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 146 states and ocurred in iteration 1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 712 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 712 mSDsluCounter, 936 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 808 mSDsCounter, 15 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 48 IncrementalHoareTripleChecker+Invalid, 63 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 15 mSolverCounterUnsat, 128 mSDtfsCounter, 48 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI0 SFLT0 conc1 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 535]: 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, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2f8cdf5a=0, pumpRunning=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1f976d17=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4ef9e65f=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@37813be0=0, tmp___0=0, NULL=1, tmp___0=0, methaneLevelCritical=0, retValue_acc=1, \result=0, retValue_acc=0, \result=1, retValue_acc=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1aae77a4=0, tmp=1, tmp___2=0, cleanupTimeShifts=4, tmp=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@40cb7f63=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2bd31197=0, \result=0, tmp=0, head=0, tmp___1=0, NULL=0, waterLevel=1, systemActive=1, tmp=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1b39ff8=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 535]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L228] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L432] int waterLevel = 1; [L433] int methaneLevelCritical = 0; [L598] int pumpRunning = 0; [L599] int systemActive = 1; [L856] int cleanupTimeShifts = 4; [L929] int retValue_acc ; [L930] int tmp ; [L934] FCALL select_helpers() [L935] FCALL select_features() [L936] CALL, EXPR valid_product() [L847] int retValue_acc ; [L850] retValue_acc = 1 [L851] return (retValue_acc); [L936] RET, EXPR valid_product() [L936] tmp = valid_product() [L938] COND TRUE \read(tmp) [L940] FCALL setup() [L941] CALL runTest() [L923] CALL test() [L526] int splverifierCounter ; [L527] int tmp ; [L528] int tmp___0 ; [L529] int tmp___1 ; [L530] int tmp___2 ; [L533] splverifierCounter = 0 Loop: [L535] COND TRUE 1 [L537] COND TRUE splverifierCounter < 4 [L543] tmp = __VERIFIER_nondet_int() [L545] COND FALSE !(\read(tmp)) [L553] tmp___0 = __VERIFIER_nondet_int() [L555] COND FALSE !(\read(tmp___0)) [L563] tmp___2 = __VERIFIER_nondet_int() [L565] COND FALSE !(\read(tmp___2)) [L571] tmp___1 = __VERIFIER_nondet_int() [L573] COND FALSE !(\read(tmp___1)) [L582] CALL timeShift() [L606] COND FALSE !(\read(pumpRunning)) [L613] COND TRUE \read(systemActive) [L615] CALL processEnvironment() [L635] int tmp ; [L638] COND FALSE !(\read(pumpRunning)) [L653] FCALL processEnvironment__wrappee__base() [L615] RET processEnvironment() [L621] CALL __utac_acc__Specification1_spec__1() [L793] int tmp ; [L794] int tmp___0 ; [L798] CALL, EXPR isMethaneLevelCritical() [L471] int retValue_acc ; [L474] retValue_acc = methaneLevelCritical [L475] return (retValue_acc); [L798] RET, EXPR isMethaneLevelCritical() [L798] tmp = isMethaneLevelCritical() [L800] COND FALSE !(\read(tmp)) [L621] RET __utac_acc__Specification1_spec__1() [L582] RET timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2022-02-21 04:15:22,617 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)