./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/minepump_spec5_product20.cil.c --full-output -ea --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 03d7b7b3 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -ea -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i ../sv-benchmarks/c/product-lines/minepump_spec5_product20.cil.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 61c2d7b2f53adc3803e4e62ab44daa78f4a9bdf9ba37b58d516bb40a6cc23cc6 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-03d7b7b [2022-02-21 04:18:29,964 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-21 04:18:29,966 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-21 04:18:29,995 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-02-21 04:18:29,996 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-02-21 04:18:29,997 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-02-21 04:18:29,998 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-02-21 04:18:30,000 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-02-21 04:18:30,003 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-02-21 04:18:30,004 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-02-21 04:18:30,005 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-02-21 04:18:30,006 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-02-21 04:18:30,006 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-21 04:18:30,007 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-21 04:18:30,008 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-21 04:18:30,009 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-21 04:18:30,010 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-21 04:18:30,014 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-21 04:18:30,016 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-21 04:18:30,021 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-21 04:18:30,023 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-21 04:18:30,024 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-21 04:18:30,025 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-21 04:18:30,026 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-21 04:18:30,028 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-02-21 04:18:30,028 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-02-21 04:18:30,029 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-02-21 04:18:30,029 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-02-21 04:18:30,030 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-02-21 04:18:30,031 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-02-21 04:18:30,031 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-02-21 04:18:30,031 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-02-21 04:18:30,032 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-02-21 04:18:30,033 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-02-21 04:18:30,034 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-02-21 04:18:30,034 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-02-21 04:18:30,034 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-02-21 04:18:30,035 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-02-21 04:18:30,035 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-21 04:18:30,036 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-21 04:18:30,036 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-21 04:18:30,045 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2022-02-21 04:18:30,076 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-21 04:18:30,076 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-21 04:18:30,077 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-02-21 04:18:30,077 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-02-21 04:18:30,079 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-02-21 04:18:30,079 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-02-21 04:18:30,079 INFO L138 SettingsManager]: * Use SBE=true [2022-02-21 04:18:30,079 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-02-21 04:18:30,080 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-02-21 04:18:30,080 INFO L138 SettingsManager]: * Use old map elimination=false [2022-02-21 04:18:30,081 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-02-21 04:18:30,081 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-02-21 04:18:30,081 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-02-21 04:18:30,081 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-21 04:18:30,081 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-21 04:18:30,081 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-02-21 04:18:30,082 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-21 04:18:30,082 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-21 04:18:30,082 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-21 04:18:30,082 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-02-21 04:18:30,082 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-02-21 04:18:30,083 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-02-21 04:18:30,083 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-21 04:18:30,083 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-21 04:18:30,083 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-02-21 04:18:30,083 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-21 04:18:30,083 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-02-21 04:18:30,085 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-21 04:18:30,085 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-21 04:18:30,085 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-21 04:18:30,086 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-02-21 04:18:30,087 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-02-21 04:18:30,087 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 61c2d7b2f53adc3803e4e62ab44daa78f4a9bdf9ba37b58d516bb40a6cc23cc6 [2022-02-21 04:18:30,309 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-21 04:18:30,336 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-21 04:18:30,339 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-21 04:18:30,340 INFO L271 PluginConnector]: Initializing CDTParser... [2022-02-21 04:18:30,341 INFO L275 PluginConnector]: CDTParser initialized [2022-02-21 04:18:30,342 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec5_product20.cil.c [2022-02-21 04:18:30,396 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2a18a814d/80b5583e9737405bbfd130d952870df1/FLAG38bea7aeb [2022-02-21 04:18:30,831 INFO L306 CDTParser]: Found 1 translation units. [2022-02-21 04:18:30,831 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec5_product20.cil.c [2022-02-21 04:18:30,853 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2a18a814d/80b5583e9737405bbfd130d952870df1/FLAG38bea7aeb [2022-02-21 04:18:31,208 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2a18a814d/80b5583e9737405bbfd130d952870df1 [2022-02-21 04:18:31,211 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-21 04:18:31,212 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-02-21 04:18:31,213 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-02-21 04:18:31,213 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-02-21 04:18:31,218 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-02-21 04:18:31,219 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.02 04:18:31" (1/1) ... [2022-02-21 04:18:31,228 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4d6e2289 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:31, skipping insertion in model container [2022-02-21 04:18:31,229 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.02 04:18:31" (1/1) ... [2022-02-21 04:18:31,235 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-02-21 04:18:31,271 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-02-21 04:18:31,503 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_spec5_product20.cil.c[13937,13950] [2022-02-21 04:18:31,526 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-21 04:18:31,536 INFO L203 MainTranslator]: Completed pre-run [2022-02-21 04:18:31,618 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_spec5_product20.cil.c[13937,13950] [2022-02-21 04:18:31,633 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-21 04:18:31,649 INFO L208 MainTranslator]: Completed translation [2022-02-21 04:18:31,651 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:31 WrapperNode [2022-02-21 04:18:31,652 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-02-21 04:18:31,653 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-02-21 04:18:31,654 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-02-21 04:18:31,654 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-02-21 04:18:31,663 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:31" (1/1) ... [2022-02-21 04:18:31,682 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:31" (1/1) ... [2022-02-21 04:18:31,727 INFO L137 Inliner]: procedures = 56, calls = 155, calls flagged for inlining = 52, calls inlined = 57, statements flattened = 427 [2022-02-21 04:18:31,729 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-02-21 04:18:31,730 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-21 04:18:31,730 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-21 04:18:31,730 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-21 04:18:31,738 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:31" (1/1) ... [2022-02-21 04:18:31,739 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:31" (1/1) ... [2022-02-21 04:18:31,750 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:31" (1/1) ... [2022-02-21 04:18:31,757 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:31" (1/1) ... [2022-02-21 04:18:31,764 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:31" (1/1) ... [2022-02-21 04:18:31,770 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:31" (1/1) ... [2022-02-21 04:18:31,772 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:31" (1/1) ... [2022-02-21 04:18:31,782 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-21 04:18:31,783 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-21 04:18:31,783 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-21 04:18:31,783 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-21 04:18:31,784 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:31" (1/1) ... [2022-02-21 04:18:31,792 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-02-21 04:18:31,809 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-21 04:18:31,825 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 04:18:31,827 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 04:18:31,858 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-02-21 04:18:31,858 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-02-21 04:18:31,858 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-21 04:18:31,858 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-21 04:18:31,918 INFO L234 CfgBuilder]: Building ICFG [2022-02-21 04:18:31,920 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-21 04:18:32,292 INFO L275 CfgBuilder]: Performing block encoding [2022-02-21 04:18:32,298 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-21 04:18:32,299 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-02-21 04:18:32,300 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 04:18:32 BoogieIcfgContainer [2022-02-21 04:18:32,301 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-21 04:18:32,302 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-02-21 04:18:32,302 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-02-21 04:18:32,305 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-02-21 04:18:32,318 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-02-21 04:18:32,318 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 21.02 04:18:31" (1/3) ... [2022-02-21 04:18:32,319 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@457a9096 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.02 04:18:32, skipping insertion in model container [2022-02-21 04:18:32,319 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-02-21 04:18:32,320 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:31" (2/3) ... [2022-02-21 04:18:32,320 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@457a9096 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.02 04:18:32, skipping insertion in model container [2022-02-21 04:18:32,320 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-02-21 04:18:32,320 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 04:18:32" (3/3) ... [2022-02-21 04:18:32,321 INFO L388 chiAutomizerObserver]: Analyzing ICFG minepump_spec5_product20.cil.c [2022-02-21 04:18:32,368 INFO L359 BuchiCegarLoop]: Interprodecural is true [2022-02-21 04:18:32,369 INFO L360 BuchiCegarLoop]: Hoare is false [2022-02-21 04:18:32,369 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-02-21 04:18:32,369 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-02-21 04:18:32,369 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-02-21 04:18:32,369 INFO L364 BuchiCegarLoop]: Difference is false [2022-02-21 04:18:32,369 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-02-21 04:18:32,370 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2022-02-21 04:18:32,400 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 117 states, 116 states have (on average 1.353448275862069) internal successors, (157), 116 states have internal predecessors, (157), 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 04:18:32,450 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 75 [2022-02-21 04:18:32,450 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:18:32,450 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:18:32,455 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:18:32,455 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] [2022-02-21 04:18:32,456 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2022-02-21 04:18:32,458 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 117 states, 116 states have (on average 1.353448275862069) internal successors, (157), 116 states have internal predecessors, (157), 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 04:18:32,470 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 75 [2022-02-21 04:18:32,475 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:18:32,475 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:18:32,476 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:18:32,476 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] [2022-02-21 04:18:32,483 INFO L791 eck$LassoCheckResult]: Stem: 106#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;~switchedOnBeforeTS~0 := 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1; 35#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret36#1, main_~retValue_acc~8#1, main_~tmp~4#1;havoc main_~retValue_acc~8#1;havoc main_~tmp~4#1;assume { :begin_inline_select_helpers } true; 84#L588true assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 114#L581true assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~7#1;havoc valid_product_~retValue_acc~7#1;valid_product_~retValue_acc~7#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~7#1; 43#L596true main_#t~ret36#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~4#1 := main_#t~ret36#1;havoc main_#t~ret36#1; 44#L696true assume 0 != main_~tmp~4#1;assume { :begin_inline_setup } true; 101#L671true assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0; 36#L520true assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet37#1, test_#t~nondet38#1, test_#t~nondet39#1, test_#t~nondet40#1, test_~splverifierCounter~0#1, test_~tmp~5#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~5#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 113#L722-2true [2022-02-21 04:18:32,487 INFO L793 eck$LassoCheckResult]: Loop: 113#L722-2true assume !false; 112#L723true assume test_~splverifierCounter~0#1 < 4; 21#L724true test_~tmp~5#1 := test_#t~nondet37#1;havoc test_#t~nondet37#1; 30#L732true assume !(0 != test_~tmp~5#1); 95#L732-2true test_~tmp___0~1#1 := test_#t~nondet38#1;havoc test_#t~nondet38#1; 34#L742true assume !(0 != test_~tmp___0~1#1); 73#L742-2true test_~tmp___2~0#1 := test_#t~nondet39#1;havoc test_#t~nondet39#1; 65#L752true assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 58#L957true assume { :end_inline_startSystem } true; 102#L760-2true assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret32#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~10#1;havoc isPumpRunning_~retValue_acc~10#1;isPumpRunning_~retValue_acc~10#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~10#1; 46#L878true __utac_acc__Specification5_spec__2_#t~ret32#1 := isPumpRunning_#res#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret32#1;havoc __utac_acc__Specification5_spec__2_#t~ret32#1; 38#L530true assume { :end_inline___utac_acc__Specification5_spec__2 } true; 37#L793true assume !(0 != ~pumpRunning~0); 63#L793-2true assume !(0 != ~systemActive~0); 105#L800-1true assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret33#1, __utac_acc__Specification5_spec__3_#t~ret34#1, __utac_acc__Specification5_spec__3_~tmp~3#1, __utac_acc__Specification5_spec__3_~tmp___0~0#1;havoc __utac_acc__Specification5_spec__3_~tmp~3#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~0#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; 83#L498true __utac_acc__Specification5_spec__3_#t~ret33#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~3#1 := __utac_acc__Specification5_spec__3_#t~ret33#1;havoc __utac_acc__Specification5_spec__3_#t~ret33#1; 76#L541true assume !(2 != __utac_acc__Specification5_spec__3_~tmp~3#1); 64#L541-1true assume { :end_inline___utac_acc__Specification5_spec__3 } true; 5#L810true assume { :end_inline_timeShift } true; 113#L722-2true [2022-02-21 04:18:32,492 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:18:32,492 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 1 times [2022-02-21 04:18:32,500 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:18:32,500 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [782652994] [2022-02-21 04:18:32,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:18:32,502 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:18:32,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:32,632 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:18:32,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:32,705 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:18:32,708 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:18:32,709 INFO L85 PathProgramCache]: Analyzing trace with hash 2121698635, now seen corresponding path program 1 times [2022-02-21 04:18:32,709 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:18:32,711 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [155137428] [2022-02-21 04:18:32,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:18:32,711 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:18:32,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-21 04:18:32,827 INFO L290 TraceCheckUtils]: 0: Hoare triple {123#true} assume !false; {123#true} is VALID [2022-02-21 04:18:32,827 INFO L290 TraceCheckUtils]: 1: Hoare triple {123#true} assume test_~splverifierCounter~0#1 < 4; {123#true} is VALID [2022-02-21 04:18:32,827 INFO L290 TraceCheckUtils]: 2: Hoare triple {123#true} test_~tmp~5#1 := test_#t~nondet37#1;havoc test_#t~nondet37#1; {123#true} is VALID [2022-02-21 04:18:32,827 INFO L290 TraceCheckUtils]: 3: Hoare triple {123#true} assume !(0 != test_~tmp~5#1); {123#true} is VALID [2022-02-21 04:18:32,827 INFO L290 TraceCheckUtils]: 4: Hoare triple {123#true} test_~tmp___0~1#1 := test_#t~nondet38#1;havoc test_#t~nondet38#1; {123#true} is VALID [2022-02-21 04:18:32,828 INFO L290 TraceCheckUtils]: 5: Hoare triple {123#true} assume !(0 != test_~tmp___0~1#1); {123#true} is VALID [2022-02-21 04:18:32,828 INFO L290 TraceCheckUtils]: 6: Hoare triple {123#true} test_~tmp___2~0#1 := test_#t~nondet39#1;havoc test_#t~nondet39#1; {123#true} is VALID [2022-02-21 04:18:32,830 INFO L290 TraceCheckUtils]: 7: Hoare triple {123#true} assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; {125#(<= 1 ~systemActive~0)} is VALID [2022-02-21 04:18:32,831 INFO L290 TraceCheckUtils]: 8: Hoare triple {125#(<= 1 ~systemActive~0)} assume { :end_inline_startSystem } true; {125#(<= 1 ~systemActive~0)} is VALID [2022-02-21 04:18:32,832 INFO L290 TraceCheckUtils]: 9: Hoare triple {125#(<= 1 ~systemActive~0)} assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret32#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~10#1;havoc isPumpRunning_~retValue_acc~10#1;isPumpRunning_~retValue_acc~10#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~10#1; {125#(<= 1 ~systemActive~0)} is VALID [2022-02-21 04:18:32,832 INFO L290 TraceCheckUtils]: 10: Hoare triple {125#(<= 1 ~systemActive~0)} __utac_acc__Specification5_spec__2_#t~ret32#1 := isPumpRunning_#res#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret32#1;havoc __utac_acc__Specification5_spec__2_#t~ret32#1; {125#(<= 1 ~systemActive~0)} is VALID [2022-02-21 04:18:32,832 INFO L290 TraceCheckUtils]: 11: Hoare triple {125#(<= 1 ~systemActive~0)} assume { :end_inline___utac_acc__Specification5_spec__2 } true; {125#(<= 1 ~systemActive~0)} is VALID [2022-02-21 04:18:32,833 INFO L290 TraceCheckUtils]: 12: Hoare triple {125#(<= 1 ~systemActive~0)} assume !(0 != ~pumpRunning~0); {125#(<= 1 ~systemActive~0)} is VALID [2022-02-21 04:18:32,833 INFO L290 TraceCheckUtils]: 13: Hoare triple {125#(<= 1 ~systemActive~0)} assume !(0 != ~systemActive~0); {124#false} is VALID [2022-02-21 04:18:32,834 INFO L290 TraceCheckUtils]: 14: Hoare triple {124#false} assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret33#1, __utac_acc__Specification5_spec__3_#t~ret34#1, __utac_acc__Specification5_spec__3_~tmp~3#1, __utac_acc__Specification5_spec__3_~tmp___0~0#1;havoc __utac_acc__Specification5_spec__3_~tmp~3#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~0#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; {124#false} is VALID [2022-02-21 04:18:32,834 INFO L290 TraceCheckUtils]: 15: Hoare triple {124#false} __utac_acc__Specification5_spec__3_#t~ret33#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~3#1 := __utac_acc__Specification5_spec__3_#t~ret33#1;havoc __utac_acc__Specification5_spec__3_#t~ret33#1; {124#false} is VALID [2022-02-21 04:18:32,834 INFO L290 TraceCheckUtils]: 16: Hoare triple {124#false} assume !(2 != __utac_acc__Specification5_spec__3_~tmp~3#1); {124#false} is VALID [2022-02-21 04:18:32,834 INFO L290 TraceCheckUtils]: 17: Hoare triple {124#false} assume { :end_inline___utac_acc__Specification5_spec__3 } true; {124#false} is VALID [2022-02-21 04:18:32,834 INFO L290 TraceCheckUtils]: 18: Hoare triple {124#false} assume { :end_inline_timeShift } true; {124#false} is VALID [2022-02-21 04:18:32,835 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 04:18:32,836 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-21 04:18:32,836 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [155137428] [2022-02-21 04:18:32,836 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [155137428] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-21 04:18:32,836 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-21 04:18:32,837 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-02-21 04:18:32,837 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1180284839] [2022-02-21 04:18:32,838 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-21 04:18:32,841 INFO L808 eck$LassoCheckResult]: loop already infeasible [2022-02-21 04:18:32,842 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-21 04:18:32,867 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-02-21 04:18:32,867 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-21 04:18:32,874 INFO L87 Difference]: Start difference. First operand has 117 states, 116 states have (on average 1.353448275862069) internal successors, (157), 116 states have internal predecessors, (157), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 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 04:18:33,189 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:18:33,189 INFO L93 Difference]: Finished difference Result 218 states and 280 transitions. [2022-02-21 04:18:33,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-21 04:18:33,191 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 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 04:18:33,208 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 19 edges. 19 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-02-21 04:18:33,215 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 218 states and 280 transitions. [2022-02-21 04:18:33,239 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 140 [2022-02-21 04:18:33,251 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 218 states to 198 states and 259 transitions. [2022-02-21 04:18:33,252 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 198 [2022-02-21 04:18:33,252 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 198 [2022-02-21 04:18:33,253 INFO L73 IsDeterministic]: Start isDeterministic. Operand 198 states and 259 transitions. [2022-02-21 04:18:33,254 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-02-21 04:18:33,254 INFO L681 BuchiCegarLoop]: Abstraction has 198 states and 259 transitions. [2022-02-21 04:18:33,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 198 states and 259 transitions. [2022-02-21 04:18:33,298 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 198 to 195. [2022-02-21 04:18:33,299 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-02-21 04:18:33,305 INFO L82 GeneralOperation]: Start isEquivalent. First operand 198 states and 259 transitions. Second operand has 195 states, 195 states have (on average 1.3076923076923077) internal successors, (255), 194 states have internal predecessors, (255), 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 04:18:33,307 INFO L74 IsIncluded]: Start isIncluded. First operand 198 states and 259 transitions. Second operand has 195 states, 195 states have (on average 1.3076923076923077) internal successors, (255), 194 states have internal predecessors, (255), 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 04:18:33,309 INFO L87 Difference]: Start difference. First operand 198 states and 259 transitions. Second operand has 195 states, 195 states have (on average 1.3076923076923077) internal successors, (255), 194 states have internal predecessors, (255), 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 04:18:33,320 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:18:33,320 INFO L93 Difference]: Finished difference Result 198 states and 259 transitions. [2022-02-21 04:18:33,321 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states and 259 transitions. [2022-02-21 04:18:33,325 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:18:33,327 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:18:33,328 INFO L74 IsIncluded]: Start isIncluded. First operand has 195 states, 195 states have (on average 1.3076923076923077) internal successors, (255), 194 states have internal predecessors, (255), 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 198 states and 259 transitions. [2022-02-21 04:18:33,329 INFO L87 Difference]: Start difference. First operand has 195 states, 195 states have (on average 1.3076923076923077) internal successors, (255), 194 states have internal predecessors, (255), 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 198 states and 259 transitions. [2022-02-21 04:18:33,336 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:18:33,337 INFO L93 Difference]: Finished difference Result 198 states and 259 transitions. [2022-02-21 04:18:33,337 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states and 259 transitions. [2022-02-21 04:18:33,342 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:18:33,343 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:18:33,343 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-02-21 04:18:33,348 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-02-21 04:18:33,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 195 states, 195 states have (on average 1.3076923076923077) internal successors, (255), 194 states have internal predecessors, (255), 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 04:18:33,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 195 states to 195 states and 255 transitions. [2022-02-21 04:18:33,357 INFO L704 BuchiCegarLoop]: Abstraction has 195 states and 255 transitions. [2022-02-21 04:18:33,357 INFO L587 BuchiCegarLoop]: Abstraction has 195 states and 255 transitions. [2022-02-21 04:18:33,357 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2022-02-21 04:18:33,357 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 195 states and 255 transitions. [2022-02-21 04:18:33,360 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 137 [2022-02-21 04:18:33,360 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:18:33,360 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:18:33,361 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:18:33,361 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:18:33,361 INFO L791 eck$LassoCheckResult]: Stem: 450#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;~switchedOnBeforeTS~0 := 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1; 394#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret36#1, main_~retValue_acc~8#1, main_~tmp~4#1;havoc main_~retValue_acc~8#1;havoc main_~tmp~4#1;assume { :begin_inline_select_helpers } true; 395#L588 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 439#L581 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~7#1;havoc valid_product_~retValue_acc~7#1;valid_product_~retValue_acc~7#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~7#1; 407#L596 main_#t~ret36#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~4#1 := main_#t~ret36#1;havoc main_#t~ret36#1; 408#L696 assume 0 != main_~tmp~4#1;assume { :begin_inline_setup } true; 409#L671 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0; 396#L520 assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet37#1, test_#t~nondet38#1, test_#t~nondet39#1, test_#t~nondet40#1, test_~splverifierCounter~0#1, test_~tmp~5#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~5#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 347#L722-2 [2022-02-21 04:18:33,361 INFO L793 eck$LassoCheckResult]: Loop: 347#L722-2 assume !false; 472#L723 assume test_~splverifierCounter~0#1 < 4; 471#L724 test_~tmp~5#1 := test_#t~nondet37#1;havoc test_#t~nondet37#1; 469#L732 assume !(0 != test_~tmp~5#1); 467#L732-2 test_~tmp___0~1#1 := test_#t~nondet38#1;havoc test_#t~nondet38#1; 465#L742 assume !(0 != test_~tmp___0~1#1); 463#L742-2 test_~tmp___2~0#1 := test_#t~nondet39#1;havoc test_#t~nondet39#1; 462#L752 assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 421#L957 assume { :end_inline_startSystem } true; 416#L760-2 assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret32#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~10#1;havoc isPumpRunning_~retValue_acc~10#1;isPumpRunning_~retValue_acc~10#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~10#1; 411#L878 __utac_acc__Specification5_spec__2_#t~ret32#1 := isPumpRunning_#res#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret32#1;havoc __utac_acc__Specification5_spec__2_#t~ret32#1; 400#L530 assume { :end_inline___utac_acc__Specification5_spec__2 } true; 397#L793 assume !(0 != ~pumpRunning~0); 398#L793-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret41#1, processEnvironment_~tmp~6#1;havoc processEnvironment_~tmp~6#1; 425#L825 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true; 428#L817-1 assume { :end_inline_processEnvironment__wrappee__base } true; 370#L825-1 assume { :end_inline_processEnvironment } true; 371#L800-1 assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret33#1, __utac_acc__Specification5_spec__3_#t~ret34#1, __utac_acc__Specification5_spec__3_~tmp~3#1, __utac_acc__Specification5_spec__3_~tmp___0~0#1;havoc __utac_acc__Specification5_spec__3_~tmp~3#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~0#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; 438#L498 __utac_acc__Specification5_spec__3_#t~ret33#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~3#1 := __utac_acc__Specification5_spec__3_#t~ret33#1;havoc __utac_acc__Specification5_spec__3_#t~ret33#1; 435#L541 assume !(2 != __utac_acc__Specification5_spec__3_~tmp~3#1); 380#L541-1 assume { :end_inline___utac_acc__Specification5_spec__3 } true; 346#L810 assume { :end_inline_timeShift } true; 347#L722-2 [2022-02-21 04:18:33,364 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:18:33,364 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 2 times [2022-02-21 04:18:33,364 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:18:33,364 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [908462124] [2022-02-21 04:18:33,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:18:33,365 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:18:33,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:33,423 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:18:33,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:33,448 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:18:33,451 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:18:33,463 INFO L85 PathProgramCache]: Analyzing trace with hash -752998373, now seen corresponding path program 1 times [2022-02-21 04:18:33,463 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:18:33,464 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1974401852] [2022-02-21 04:18:33,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:18:33,464 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:18:33,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:33,475 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:18:33,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:33,482 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:18:33,482 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:18:33,483 INFO L85 PathProgramCache]: Analyzing trace with hash -310786492, now seen corresponding path program 1 times [2022-02-21 04:18:33,483 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:18:33,497 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [603471031] [2022-02-21 04:18:33,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:18:33,498 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:18:33,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-21 04:18:33,591 INFO L290 TraceCheckUtils]: 0: Hoare triple {942#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;~switchedOnBeforeTS~0 := 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1; {944#(= ~waterLevel~0 1)} is VALID [2022-02-21 04:18:33,591 INFO L290 TraceCheckUtils]: 1: Hoare triple {944#(= ~waterLevel~0 1)} assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret36#1, main_~retValue_acc~8#1, main_~tmp~4#1;havoc main_~retValue_acc~8#1;havoc main_~tmp~4#1;assume { :begin_inline_select_helpers } true; {944#(= ~waterLevel~0 1)} is VALID [2022-02-21 04:18:33,593 INFO L290 TraceCheckUtils]: 2: Hoare triple {944#(= ~waterLevel~0 1)} assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; {944#(= ~waterLevel~0 1)} is VALID [2022-02-21 04:18:33,593 INFO L290 TraceCheckUtils]: 3: Hoare triple {944#(= ~waterLevel~0 1)} assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~7#1;havoc valid_product_~retValue_acc~7#1;valid_product_~retValue_acc~7#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~7#1; {944#(= ~waterLevel~0 1)} is VALID [2022-02-21 04:18:33,594 INFO L290 TraceCheckUtils]: 4: Hoare triple {944#(= ~waterLevel~0 1)} main_#t~ret36#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~4#1 := main_#t~ret36#1;havoc main_#t~ret36#1; {944#(= ~waterLevel~0 1)} is VALID [2022-02-21 04:18:33,594 INFO L290 TraceCheckUtils]: 5: Hoare triple {944#(= ~waterLevel~0 1)} assume 0 != main_~tmp~4#1;assume { :begin_inline_setup } true; {944#(= ~waterLevel~0 1)} is VALID [2022-02-21 04:18:33,594 INFO L290 TraceCheckUtils]: 6: Hoare triple {944#(= ~waterLevel~0 1)} assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0; {944#(= ~waterLevel~0 1)} is VALID [2022-02-21 04:18:33,595 INFO L290 TraceCheckUtils]: 7: Hoare triple {944#(= ~waterLevel~0 1)} assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet37#1, test_#t~nondet38#1, test_#t~nondet39#1, test_#t~nondet40#1, test_~splverifierCounter~0#1, test_~tmp~5#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~5#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; {944#(= ~waterLevel~0 1)} is VALID [2022-02-21 04:18:33,595 INFO L290 TraceCheckUtils]: 8: Hoare triple {944#(= ~waterLevel~0 1)} assume !false; {944#(= ~waterLevel~0 1)} is VALID [2022-02-21 04:18:33,596 INFO L290 TraceCheckUtils]: 9: Hoare triple {944#(= ~waterLevel~0 1)} assume test_~splverifierCounter~0#1 < 4; {944#(= ~waterLevel~0 1)} is VALID [2022-02-21 04:18:33,596 INFO L290 TraceCheckUtils]: 10: Hoare triple {944#(= ~waterLevel~0 1)} test_~tmp~5#1 := test_#t~nondet37#1;havoc test_#t~nondet37#1; {944#(= ~waterLevel~0 1)} is VALID [2022-02-21 04:18:33,597 INFO L290 TraceCheckUtils]: 11: Hoare triple {944#(= ~waterLevel~0 1)} assume !(0 != test_~tmp~5#1); {944#(= ~waterLevel~0 1)} is VALID [2022-02-21 04:18:33,597 INFO L290 TraceCheckUtils]: 12: Hoare triple {944#(= ~waterLevel~0 1)} test_~tmp___0~1#1 := test_#t~nondet38#1;havoc test_#t~nondet38#1; {944#(= ~waterLevel~0 1)} is VALID [2022-02-21 04:18:33,597 INFO L290 TraceCheckUtils]: 13: Hoare triple {944#(= ~waterLevel~0 1)} assume !(0 != test_~tmp___0~1#1); {944#(= ~waterLevel~0 1)} is VALID [2022-02-21 04:18:33,598 INFO L290 TraceCheckUtils]: 14: Hoare triple {944#(= ~waterLevel~0 1)} test_~tmp___2~0#1 := test_#t~nondet39#1;havoc test_#t~nondet39#1; {944#(= ~waterLevel~0 1)} is VALID [2022-02-21 04:18:33,598 INFO L290 TraceCheckUtils]: 15: Hoare triple {944#(= ~waterLevel~0 1)} assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; {944#(= ~waterLevel~0 1)} is VALID [2022-02-21 04:18:33,598 INFO L290 TraceCheckUtils]: 16: Hoare triple {944#(= ~waterLevel~0 1)} assume { :end_inline_startSystem } true; {944#(= ~waterLevel~0 1)} is VALID [2022-02-21 04:18:33,599 INFO L290 TraceCheckUtils]: 17: Hoare triple {944#(= ~waterLevel~0 1)} assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret32#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~10#1;havoc isPumpRunning_~retValue_acc~10#1;isPumpRunning_~retValue_acc~10#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~10#1; {944#(= ~waterLevel~0 1)} is VALID [2022-02-21 04:18:33,600 INFO L290 TraceCheckUtils]: 18: Hoare triple {944#(= ~waterLevel~0 1)} __utac_acc__Specification5_spec__2_#t~ret32#1 := isPumpRunning_#res#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret32#1;havoc __utac_acc__Specification5_spec__2_#t~ret32#1; {944#(= ~waterLevel~0 1)} is VALID [2022-02-21 04:18:33,601 INFO L290 TraceCheckUtils]: 19: Hoare triple {944#(= ~waterLevel~0 1)} assume { :end_inline___utac_acc__Specification5_spec__2 } true; {944#(= ~waterLevel~0 1)} is VALID [2022-02-21 04:18:33,601 INFO L290 TraceCheckUtils]: 20: Hoare triple {944#(= ~waterLevel~0 1)} assume !(0 != ~pumpRunning~0); {944#(= ~waterLevel~0 1)} is VALID [2022-02-21 04:18:33,601 INFO L290 TraceCheckUtils]: 21: Hoare triple {944#(= ~waterLevel~0 1)} assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret41#1, processEnvironment_~tmp~6#1;havoc processEnvironment_~tmp~6#1; {944#(= ~waterLevel~0 1)} is VALID [2022-02-21 04:18:33,602 INFO L290 TraceCheckUtils]: 22: Hoare triple {944#(= ~waterLevel~0 1)} assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true; {944#(= ~waterLevel~0 1)} is VALID [2022-02-21 04:18:33,602 INFO L290 TraceCheckUtils]: 23: Hoare triple {944#(= ~waterLevel~0 1)} assume { :end_inline_processEnvironment__wrappee__base } true; {944#(= ~waterLevel~0 1)} is VALID [2022-02-21 04:18:33,603 INFO L290 TraceCheckUtils]: 24: Hoare triple {944#(= ~waterLevel~0 1)} assume { :end_inline_processEnvironment } true; {944#(= ~waterLevel~0 1)} is VALID [2022-02-21 04:18:33,603 INFO L290 TraceCheckUtils]: 25: Hoare triple {944#(= ~waterLevel~0 1)} assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret33#1, __utac_acc__Specification5_spec__3_#t~ret34#1, __utac_acc__Specification5_spec__3_~tmp~3#1, __utac_acc__Specification5_spec__3_~tmp___0~0#1;havoc __utac_acc__Specification5_spec__3_~tmp~3#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~0#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; {945#(= |ULTIMATE.start_getWaterLevel_#res#1| 1)} is VALID [2022-02-21 04:18:33,604 INFO L290 TraceCheckUtils]: 26: Hoare triple {945#(= |ULTIMATE.start_getWaterLevel_#res#1| 1)} __utac_acc__Specification5_spec__3_#t~ret33#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~3#1 := __utac_acc__Specification5_spec__3_#t~ret33#1;havoc __utac_acc__Specification5_spec__3_#t~ret33#1; {946#(= |ULTIMATE.start___utac_acc__Specification5_spec__3_~tmp~3#1| 1)} is VALID [2022-02-21 04:18:33,604 INFO L290 TraceCheckUtils]: 27: Hoare triple {946#(= |ULTIMATE.start___utac_acc__Specification5_spec__3_~tmp~3#1| 1)} assume !(2 != __utac_acc__Specification5_spec__3_~tmp~3#1); {943#false} is VALID [2022-02-21 04:18:33,605 INFO L290 TraceCheckUtils]: 28: Hoare triple {943#false} assume { :end_inline___utac_acc__Specification5_spec__3 } true; {943#false} is VALID [2022-02-21 04:18:33,605 INFO L290 TraceCheckUtils]: 29: Hoare triple {943#false} assume { :end_inline_timeShift } true; {943#false} is VALID [2022-02-21 04:18:33,605 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 04:18:33,605 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-21 04:18:33,606 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [603471031] [2022-02-21 04:18:33,606 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [603471031] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-21 04:18:33,606 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-21 04:18:33,606 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-21 04:18:33,607 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2102296134] [2022-02-21 04:18:33,607 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-21 04:18:33,763 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-21 04:18:33,763 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-21 04:18:33,764 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-21 04:18:33,764 INFO L87 Difference]: Start difference. First operand 195 states and 255 transitions. cyclomatic complexity: 63 Second operand has 5 states, 5 states have (on average 6.0) internal successors, (30), 4 states have internal predecessors, (30), 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 04:18:34,419 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:18:34,419 INFO L93 Difference]: Finished difference Result 551 states and 711 transitions. [2022-02-21 04:18:34,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-02-21 04:18:34,419 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with has 5 states, 5 states have (on average 6.0) internal successors, (30), 4 states have internal predecessors, (30), 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 04:18:34,446 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 30 edges. 30 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-02-21 04:18:34,447 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 551 states and 711 transitions. [2022-02-21 04:18:34,505 INFO L131 ngComponentsAnalysis]: Automaton has 6 accepting balls. 262 [2022-02-21 04:18:34,532 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 551 states to 551 states and 711 transitions. [2022-02-21 04:18:34,532 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 551 [2022-02-21 04:18:34,533 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 551 [2022-02-21 04:18:34,533 INFO L73 IsDeterministic]: Start isDeterministic. Operand 551 states and 711 transitions. [2022-02-21 04:18:34,535 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-02-21 04:18:34,535 INFO L681 BuchiCegarLoop]: Abstraction has 551 states and 711 transitions. [2022-02-21 04:18:34,536 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 551 states and 711 transitions. [2022-02-21 04:18:34,547 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 551 to 374. [2022-02-21 04:18:34,548 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-02-21 04:18:34,549 INFO L82 GeneralOperation]: Start isEquivalent. First operand 551 states and 711 transitions. Second operand has 374 states, 374 states have (on average 1.2834224598930482) internal successors, (480), 373 states have internal predecessors, (480), 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 04:18:34,550 INFO L74 IsIncluded]: Start isIncluded. First operand 551 states and 711 transitions. Second operand has 374 states, 374 states have (on average 1.2834224598930482) internal successors, (480), 373 states have internal predecessors, (480), 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 04:18:34,550 INFO L87 Difference]: Start difference. First operand 551 states and 711 transitions. Second operand has 374 states, 374 states have (on average 1.2834224598930482) internal successors, (480), 373 states have internal predecessors, (480), 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 04:18:34,575 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:18:34,576 INFO L93 Difference]: Finished difference Result 551 states and 711 transitions. [2022-02-21 04:18:34,576 INFO L276 IsEmpty]: Start isEmpty. Operand 551 states and 711 transitions. [2022-02-21 04:18:34,577 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:18:34,577 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:18:34,578 INFO L74 IsIncluded]: Start isIncluded. First operand has 374 states, 374 states have (on average 1.2834224598930482) internal successors, (480), 373 states have internal predecessors, (480), 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 551 states and 711 transitions. [2022-02-21 04:18:34,579 INFO L87 Difference]: Start difference. First operand has 374 states, 374 states have (on average 1.2834224598930482) internal successors, (480), 373 states have internal predecessors, (480), 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 551 states and 711 transitions. [2022-02-21 04:18:34,601 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:18:34,601 INFO L93 Difference]: Finished difference Result 551 states and 711 transitions. [2022-02-21 04:18:34,601 INFO L276 IsEmpty]: Start isEmpty. Operand 551 states and 711 transitions. [2022-02-21 04:18:34,602 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:18:34,602 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:18:34,602 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-02-21 04:18:34,602 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-02-21 04:18:34,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 374 states, 374 states have (on average 1.2834224598930482) internal successors, (480), 373 states have internal predecessors, (480), 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 04:18:34,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 374 states to 374 states and 480 transitions. [2022-02-21 04:18:34,614 INFO L704 BuchiCegarLoop]: Abstraction has 374 states and 480 transitions. [2022-02-21 04:18:34,614 INFO L587 BuchiCegarLoop]: Abstraction has 374 states and 480 transitions. [2022-02-21 04:18:34,614 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2022-02-21 04:18:34,614 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 374 states and 480 transitions. [2022-02-21 04:18:34,616 INFO L131 ngComponentsAnalysis]: Automaton has 6 accepting balls. 262 [2022-02-21 04:18:34,616 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:18:34,616 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:18:34,616 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:18:34,617 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:18:34,617 INFO L791 eck$LassoCheckResult]: Stem: 1625#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;~switchedOnBeforeTS~0 := 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1; 1556#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret36#1, main_~retValue_acc~8#1, main_~tmp~4#1;havoc main_~retValue_acc~8#1;havoc main_~tmp~4#1;assume { :begin_inline_select_helpers } true; 1557#L588 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 1610#L581 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~7#1;havoc valid_product_~retValue_acc~7#1;valid_product_~retValue_acc~7#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~7#1; 1570#L596 main_#t~ret36#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~4#1 := main_#t~ret36#1;havoc main_#t~ret36#1; 1571#L696 assume 0 != main_~tmp~4#1;assume { :begin_inline_setup } true; 1572#L671 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0; 1561#L520 assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet37#1, test_#t~nondet38#1, test_#t~nondet39#1, test_#t~nondet40#1, test_~splverifierCounter~0#1, test_~tmp~5#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~5#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 1562#L722-2 [2022-02-21 04:18:34,617 INFO L793 eck$LassoCheckResult]: Loop: 1562#L722-2 assume !false; 1794#L723 assume test_~splverifierCounter~0#1 < 4; 1795#L724 test_~tmp~5#1 := test_#t~nondet37#1;havoc test_#t~nondet37#1; 1869#L732 assume !(0 != test_~tmp~5#1); 1618#L732-2 test_~tmp___0~1#1 := test_#t~nondet38#1;havoc test_#t~nondet38#1; 1554#L742 assume !(0 != test_~tmp___0~1#1); 1520#L742-2 test_~tmp___2~0#1 := test_#t~nondet39#1;havoc test_#t~nondet39#1; 1844#L752 assume !(0 != test_~tmp___2~0#1);test_~tmp___1~0#1 := test_#t~nondet40#1;havoc test_#t~nondet40#1; 1808#L760 assume !(0 != test_~tmp___1~0#1); 1588#L760-2 assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret32#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~10#1;havoc isPumpRunning_~retValue_acc~10#1;isPumpRunning_~retValue_acc~10#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~10#1; 1574#L878 __utac_acc__Specification5_spec__2_#t~ret32#1 := isPumpRunning_#res#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret32#1;havoc __utac_acc__Specification5_spec__2_#t~ret32#1; 1563#L530 assume { :end_inline___utac_acc__Specification5_spec__2 } true; 1558#L793 assume !(0 != ~pumpRunning~0); 1559#L793-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret41#1, processEnvironment_~tmp~6#1;havoc processEnvironment_~tmp~6#1; 1831#L825 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true; 1828#L817-1 assume { :end_inline_processEnvironment__wrappee__base } true; 1821#L825-1 assume { :end_inline_processEnvironment } true; 1816#L800-1 assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret33#1, __utac_acc__Specification5_spec__3_#t~ret34#1, __utac_acc__Specification5_spec__3_~tmp~3#1, __utac_acc__Specification5_spec__3_~tmp___0~0#1;havoc __utac_acc__Specification5_spec__3_~tmp~3#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~0#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; 1815#L498 __utac_acc__Specification5_spec__3_#t~ret33#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~3#1 := __utac_acc__Specification5_spec__3_#t~ret33#1;havoc __utac_acc__Specification5_spec__3_#t~ret33#1; 1814#L541 assume 2 != __utac_acc__Specification5_spec__3_~tmp~3#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~10#1;havoc isPumpRunning_~retValue_acc~10#1;isPumpRunning_~retValue_acc~10#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~10#1; 1813#L878-1 __utac_acc__Specification5_spec__3_#t~ret34#1 := isPumpRunning_#res#1;assume { :end_inline_isPumpRunning } true;__utac_acc__Specification5_spec__3_~tmp___0~0#1 := __utac_acc__Specification5_spec__3_#t~ret34#1;havoc __utac_acc__Specification5_spec__3_#t~ret34#1; 1812#L545 assume !(0 != __utac_acc__Specification5_spec__3_~tmp___0~0#1); 1810#L541-1 assume { :end_inline___utac_acc__Specification5_spec__3 } true; 1803#L810 assume { :end_inline_timeShift } true; 1562#L722-2 [2022-02-21 04:18:34,618 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:18:34,618 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 3 times [2022-02-21 04:18:34,618 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:18:34,619 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1119015227] [2022-02-21 04:18:34,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:18:34,619 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:18:34,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:34,629 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:18:34,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:34,640 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:18:34,641 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:18:34,641 INFO L85 PathProgramCache]: Analyzing trace with hash -1577438072, now seen corresponding path program 1 times [2022-02-21 04:18:34,641 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:18:34,641 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1440766962] [2022-02-21 04:18:34,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:18:34,642 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:18:34,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:34,647 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:18:34,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:34,653 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:18:34,654 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:18:34,654 INFO L85 PathProgramCache]: Analyzing trace with hash -1813582735, now seen corresponding path program 1 times [2022-02-21 04:18:34,654 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:18:34,654 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [693147132] [2022-02-21 04:18:34,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:18:34,654 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:18:34,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:34,667 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:18:34,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:34,683 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:18:37,686 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 21.02 04:18:37 BoogieIcfgContainer [2022-02-21 04:18:37,686 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-02-21 04:18:37,687 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-02-21 04:18:37,687 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-02-21 04:18:37,687 INFO L275 PluginConnector]: Witness Printer initialized [2022-02-21 04:18:37,688 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 04:18:32" (3/4) ... [2022-02-21 04:18:37,689 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2022-02-21 04:18:37,727 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-02-21 04:18:37,727 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-02-21 04:18:37,728 INFO L158 Benchmark]: Toolchain (without parser) took 6516.18ms. Allocated memory was 96.5MB in the beginning and 142.6MB in the end (delta: 46.1MB). Free memory was 55.6MB in the beginning and 45.4MB in the end (delta: 10.2MB). Peak memory consumption was 56.0MB. Max. memory is 16.1GB. [2022-02-21 04:18:37,728 INFO L158 Benchmark]: CDTParser took 0.23ms. Allocated memory is still 96.5MB. Free memory is still 72.7MB. There was no memory consumed. Max. memory is 16.1GB. [2022-02-21 04:18:37,729 INFO L158 Benchmark]: CACSL2BoogieTranslator took 439.11ms. Allocated memory is still 96.5MB. Free memory was 55.4MB in the beginning and 60.4MB in the end (delta: -5.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-02-21 04:18:37,729 INFO L158 Benchmark]: Boogie Procedure Inliner took 76.19ms. Allocated memory is still 96.5MB. Free memory was 60.4MB in the beginning and 57.2MB in the end (delta: 3.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-02-21 04:18:37,729 INFO L158 Benchmark]: Boogie Preprocessor took 52.33ms. Allocated memory is still 96.5MB. Free memory was 57.2MB in the beginning and 55.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-02-21 04:18:37,730 INFO L158 Benchmark]: RCFGBuilder took 517.81ms. Allocated memory is still 96.5MB. Free memory was 55.1MB in the beginning and 34.1MB in the end (delta: 21.0MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2022-02-21 04:18:37,730 INFO L158 Benchmark]: BuchiAutomizer took 5384.89ms. Allocated memory was 96.5MB in the beginning and 142.6MB in the end (delta: 46.1MB). Free memory was 34.1MB in the beginning and 48.4MB in the end (delta: -14.3MB). Peak memory consumption was 42.8MB. Max. memory is 16.1GB. [2022-02-21 04:18:37,730 INFO L158 Benchmark]: Witness Printer took 40.20ms. Allocated memory is still 142.6MB. Free memory was 48.4MB in the beginning and 45.4MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-02-21 04:18:37,732 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 0.23ms. Allocated memory is still 96.5MB. Free memory is still 72.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 439.11ms. Allocated memory is still 96.5MB. Free memory was 55.4MB in the beginning and 60.4MB in the end (delta: -5.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 76.19ms. Allocated memory is still 96.5MB. Free memory was 60.4MB in the beginning and 57.2MB in the end (delta: 3.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 52.33ms. Allocated memory is still 96.5MB. Free memory was 57.2MB in the beginning and 55.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 517.81ms. Allocated memory is still 96.5MB. Free memory was 55.1MB in the beginning and 34.1MB in the end (delta: 21.0MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * BuchiAutomizer took 5384.89ms. Allocated memory was 96.5MB in the beginning and 142.6MB in the end (delta: 46.1MB). Free memory was 34.1MB in the beginning and 48.4MB in the end (delta: -14.3MB). Peak memory consumption was 42.8MB. Max. memory is 16.1GB. * Witness Printer took 40.20ms. Allocated memory is still 142.6MB. Free memory was 48.4MB in the beginning and 45.4MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 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 5 locations. The remainder module has 374 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 5.3s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 3.8s. Construction of modules took 0.1s. Büchi inclusion checks took 0.9s. Highest rank in rank-based complementation 0. Minimization of det autom 2. Minimization of nondet autom 0. Automata minimization 0.2s AutomataMinimizationTime, 2 MinimizatonAttempts, 180 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.1s Buchi closure took 0.0s. Biggest automaton had 374 states and ocurred in iteration 2. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 593 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 593 mSDsluCounter, 888 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 554 mSDsCounter, 22 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 90 IncrementalHoareTripleChecker+Invalid, 112 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 22 mSolverCounterUnsat, 334 mSDtfsCounter, 90 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI1 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: 722]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=1} State at position 1 is {splverifierCounter=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3d09caf7=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6d9c842e=0, NULL=0, head=0, tmp___0=0, pumpRunning=0, NULL=1, methaneLevelCritical=0, tmp=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6128918b=0, retValue_acc=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@79defcaa=0, tmp=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@30133d10=0, retValue_acc=0, \result=1, retValue_acc=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7bc24fa3=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@80f4bab=0, tmp___2=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@54d8b2de=0, tmp=1, \result=0, cleanupTimeShifts=4, switchedOnBeforeTS=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@59b12537=0, \result=0, tmp___0=0, head=0, \result=1, tmp___1=0, NULL=0, retValue_acc=1, waterLevel=1, systemActive=1, tmp=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 722]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L219] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L423] int waterLevel = 1; [L424] int methaneLevelCritical = 0; [L514] int switchedOnBeforeTS ; [L610] int cleanupTimeShifts = 4; [L783] int pumpRunning = 0; [L784] int systemActive = 1; [L687] int retValue_acc ; [L688] int tmp ; [L692] FCALL select_helpers() [L693] FCALL select_features() [L694] CALL, EXPR valid_product() [L592] int retValue_acc ; [L595] retValue_acc = 1 [L596] return (retValue_acc); [L694] RET, EXPR valid_product() [L694] tmp = valid_product() [L696] COND TRUE \read(tmp) [L698] FCALL setup() [L699] CALL runTest() [L680] CALL __utac_acc__Specification5_spec__1() [L519] switchedOnBeforeTS = 0 [L680] RET __utac_acc__Specification5_spec__1() [L681] CALL test() [L713] int splverifierCounter ; [L714] int tmp ; [L715] int tmp___0 ; [L716] int tmp___1 ; [L717] int tmp___2 ; [L720] splverifierCounter = 0 Loop: [L722] COND TRUE 1 [L724] COND TRUE splverifierCounter < 4 [L730] tmp = __VERIFIER_nondet_int() [L732] COND FALSE !(\read(tmp)) [L740] tmp___0 = __VERIFIER_nondet_int() [L742] COND FALSE !(\read(tmp___0)) [L750] tmp___2 = __VERIFIER_nondet_int() [L752] COND FALSE !(\read(tmp___2)) [L758] tmp___1 = __VERIFIER_nondet_int() [L760] COND FALSE !(\read(tmp___1)) [L769] CALL timeShift() [L791] CALL __utac_acc__Specification5_spec__2() [L528] CALL, EXPR isPumpRunning() [L874] int retValue_acc ; [L877] retValue_acc = pumpRunning [L878] return (retValue_acc); [L528] RET, EXPR isPumpRunning() [L528] switchedOnBeforeTS = isPumpRunning() [L791] RET __utac_acc__Specification5_spec__2() [L793] COND FALSE !(\read(pumpRunning)) [L800] COND TRUE \read(systemActive) [L802] CALL processEnvironment() [L822] int tmp ; [L825] COND FALSE !(\read(pumpRunning)) [L840] FCALL processEnvironment__wrappee__base() [L802] RET processEnvironment() [L808] CALL __utac_acc__Specification5_spec__3() [L534] int tmp ; [L535] int tmp___0 ; [L539] CALL, EXPR getWaterLevel() [L494] int retValue_acc ; [L497] retValue_acc = waterLevel [L498] return (retValue_acc); [L539] RET, EXPR getWaterLevel() [L539] tmp = getWaterLevel() [L541] COND TRUE tmp != 2 [L543] CALL, EXPR isPumpRunning() [L874] int retValue_acc ; [L877] retValue_acc = pumpRunning [L878] return (retValue_acc); [L543] RET, EXPR isPumpRunning() [L543] tmp___0 = isPumpRunning() [L545] COND FALSE !(\read(tmp___0)) [L808] RET __utac_acc__Specification5_spec__3() [L769] RET timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2022-02-21 04:18:37,774 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)