./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/minepump_spec5_product52.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 35987657 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i ../sv-benchmarks/c/product-lines/minepump_spec5_product52.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 4074665f53184e0f9778b3e4e6ee9c58d8a047121518f9c126ceccd876afea36 --- Real Ultimate output --- This is Ultimate 0.2.2-?-3598765 [2022-07-22 02:39:35,749 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-22 02:39:35,751 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-22 02:39:35,794 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-22 02:39:35,795 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-22 02:39:35,797 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-22 02:39:35,801 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-22 02:39:35,804 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-22 02:39:35,805 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-22 02:39:35,809 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-22 02:39:35,810 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-22 02:39:35,811 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-22 02:39:35,811 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-22 02:39:35,813 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-22 02:39:35,814 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-22 02:39:35,818 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-22 02:39:35,818 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-22 02:39:35,819 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-22 02:39:35,822 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-22 02:39:35,826 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-22 02:39:35,827 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-22 02:39:35,828 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-22 02:39:35,829 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-22 02:39:35,830 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-22 02:39:35,838 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-22 02:39:35,844 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-22 02:39:35,844 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-22 02:39:35,844 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-22 02:39:35,845 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-22 02:39:35,845 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-22 02:39:35,846 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-22 02:39:35,846 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-22 02:39:35,847 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-22 02:39:35,848 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-22 02:39:35,849 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-22 02:39:35,850 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-22 02:39:35,850 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-22 02:39:35,850 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-22 02:39:35,850 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-22 02:39:35,851 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-22 02:39:35,851 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-22 02:39:35,852 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-22 02:39:35,859 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2022-07-22 02:39:35,885 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-22 02:39:35,885 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-22 02:39:35,886 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-22 02:39:35,886 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-22 02:39:35,887 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-22 02:39:35,887 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-22 02:39:35,887 INFO L138 SettingsManager]: * Use SBE=true [2022-07-22 02:39:35,888 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-07-22 02:39:35,888 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-07-22 02:39:35,889 INFO L138 SettingsManager]: * Use old map elimination=false [2022-07-22 02:39:35,889 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-07-22 02:39:35,889 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-07-22 02:39:35,889 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-07-22 02:39:35,889 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-22 02:39:35,889 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-22 02:39:35,890 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-07-22 02:39:35,890 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-22 02:39:35,890 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-22 02:39:35,890 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-22 02:39:35,890 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-07-22 02:39:35,890 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-07-22 02:39:35,890 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-07-22 02:39:35,891 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-22 02:39:35,891 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-22 02:39:35,891 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-07-22 02:39:35,891 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-22 02:39:35,891 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-07-22 02:39:35,892 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-22 02:39:35,892 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-22 02:39:35,892 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-22 02:39:35,892 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-22 02:39:35,893 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-07-22 02:39:35,893 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4074665f53184e0f9778b3e4e6ee9c58d8a047121518f9c126ceccd876afea36 [2022-07-22 02:39:36,191 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-22 02:39:36,210 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-22 02:39:36,213 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-22 02:39:36,214 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-22 02:39:36,215 INFO L275 PluginConnector]: CDTParser initialized [2022-07-22 02:39:36,216 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec5_product52.cil.c [2022-07-22 02:39:36,262 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0135e81c4/23a723cbbc56458db7a8a6700e873da5/FLAG5775b92a9 [2022-07-22 02:39:36,610 INFO L306 CDTParser]: Found 1 translation units. [2022-07-22 02:39:36,611 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec5_product52.cil.c [2022-07-22 02:39:36,621 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0135e81c4/23a723cbbc56458db7a8a6700e873da5/FLAG5775b92a9 [2022-07-22 02:39:37,023 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0135e81c4/23a723cbbc56458db7a8a6700e873da5 [2022-07-22 02:39:37,026 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-22 02:39:37,027 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-22 02:39:37,030 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-22 02:39:37,031 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-22 02:39:37,037 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-22 02:39:37,038 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.07 02:39:37" (1/1) ... [2022-07-22 02:39:37,039 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@40fadd76 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:39:37, skipping insertion in model container [2022-07-22 02:39:37,039 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.07 02:39:37" (1/1) ... [2022-07-22 02:39:37,046 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-22 02:39:37,140 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-22 02:39:37,408 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_product52.cil.c[12672,12685] [2022-07-22 02:39:37,469 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-22 02:39:37,481 INFO L203 MainTranslator]: Completed pre-run [2022-07-22 02:39:37,547 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_product52.cil.c[12672,12685] [2022-07-22 02:39:37,561 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-22 02:39:37,580 INFO L208 MainTranslator]: Completed translation [2022-07-22 02:39:37,581 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:39:37 WrapperNode [2022-07-22 02:39:37,581 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-22 02:39:37,582 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-22 02:39:37,582 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-22 02:39:37,582 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-22 02:39:37,588 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:39:37" (1/1) ... [2022-07-22 02:39:37,610 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:39:37" (1/1) ... [2022-07-22 02:39:37,663 INFO L137 Inliner]: procedures = 59, calls = 160, calls flagged for inlining = 57, calls inlined = 87, statements flattened = 649 [2022-07-22 02:39:37,667 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-22 02:39:37,668 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-22 02:39:37,669 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-22 02:39:37,669 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-22 02:39:37,676 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:39:37" (1/1) ... [2022-07-22 02:39:37,676 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:39:37" (1/1) ... [2022-07-22 02:39:37,690 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:39:37" (1/1) ... [2022-07-22 02:39:37,693 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:39:37" (1/1) ... [2022-07-22 02:39:37,703 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:39:37" (1/1) ... [2022-07-22 02:39:37,732 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:39:37" (1/1) ... [2022-07-22 02:39:37,734 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:39:37" (1/1) ... [2022-07-22 02:39:37,737 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-22 02:39:37,748 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-22 02:39:37,748 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-22 02:39:37,749 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-22 02:39:37,749 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:39:37" (1/1) ... [2022-07-22 02:39:37,755 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 02:39:37,766 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 02:39:37,809 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) [2022-07-22 02:39:37,825 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 [2022-07-22 02:39:37,858 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-22 02:39:37,858 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-22 02:39:37,858 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-22 02:39:37,859 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-22 02:39:37,938 INFO L234 CfgBuilder]: Building ICFG [2022-07-22 02:39:37,940 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-22 02:39:38,441 INFO L275 CfgBuilder]: Performing block encoding [2022-07-22 02:39:38,448 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-22 02:39:38,454 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-07-22 02:39:38,457 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 02:39:38 BoogieIcfgContainer [2022-07-22 02:39:38,457 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-22 02:39:38,458 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-07-22 02:39:38,461 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-07-22 02:39:38,464 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-07-22 02:39:38,465 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-22 02:39:38,465 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 22.07 02:39:37" (1/3) ... [2022-07-22 02:39:38,466 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1860380a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.07 02:39:38, skipping insertion in model container [2022-07-22 02:39:38,467 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-22 02:39:38,467 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:39:37" (2/3) ... [2022-07-22 02:39:38,467 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1860380a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.07 02:39:38, skipping insertion in model container [2022-07-22 02:39:38,467 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-22 02:39:38,467 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 02:39:38" (3/3) ... [2022-07-22 02:39:38,469 INFO L354 chiAutomizerObserver]: Analyzing ICFG minepump_spec5_product52.cil.c [2022-07-22 02:39:38,523 INFO L255 stractBuchiCegarLoop]: Interprodecural is true [2022-07-22 02:39:38,524 INFO L256 stractBuchiCegarLoop]: Hoare is false [2022-07-22 02:39:38,524 INFO L257 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-07-22 02:39:38,524 INFO L258 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-07-22 02:39:38,524 INFO L259 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-07-22 02:39:38,524 INFO L260 stractBuchiCegarLoop]: Difference is false [2022-07-22 02:39:38,525 INFO L261 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-07-22 02:39:38,525 INFO L265 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2022-07-22 02:39:38,531 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 177 states, 176 states have (on average 1.3693181818181819) internal successors, (241), 176 states have internal predecessors, (241), 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) [2022-07-22 02:39:38,568 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 115 [2022-07-22 02:39:38,568 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-22 02:39:38,568 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-22 02:39:38,574 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 02:39:38,575 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 02:39:38,575 INFO L287 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2022-07-22 02:39:38,576 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 177 states, 176 states have (on average 1.3693181818181819) internal successors, (241), 176 states have internal predecessors, (241), 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) [2022-07-22 02:39:38,582 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 115 [2022-07-22 02:39:38,585 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-22 02:39:38,586 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-22 02:39:38,587 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 02:39:38,587 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 02:39:38,592 INFO L752 eck$LassoCheckResult]: Stem: 163#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;~cleanupTimeShifts~0 := 4;~switchedOnBeforeTS~0 := 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1; 57#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret27#1, main_~retValue_acc~3#1, main_~tmp~3#1;havoc main_~retValue_acc~3#1;havoc main_~tmp~3#1;assume { :begin_inline_select_helpers } true; 135#L1008true assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 52#L1001true assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~13#1;havoc valid_product_~retValue_acc~13#1;valid_product_~retValue_acc~13#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~13#1; 21#L1016true main_#t~ret27#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~3#1 := main_#t~ret27#1;havoc main_#t~ret27#1; 48#L508true assume 0 != main_~tmp~3#1;assume { :begin_inline_setup } true; 89#L479true assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0; 71#L539true assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet36#1, test_#t~nondet37#1, test_#t~nondet38#1, test_#t~nondet39#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; 149#L702-2true [2022-07-22 02:39:38,593 INFO L754 eck$LassoCheckResult]: Loop: 149#L702-2true assume !false; 19#L703true assume test_~splverifierCounter~0#1 < 4; 74#L704true test_~tmp~5#1 := test_#t~nondet36#1;havoc test_#t~nondet36#1; 85#L712true assume !(0 != test_~tmp~5#1); 76#L712-2true test_~tmp___0~1#1 := test_#t~nondet37#1;havoc test_#t~nondet37#1; 82#L722true assume !(0 != test_~tmp___0~1#1); 176#L722-2true test_~tmp___2~0#1 := test_#t~nondet38#1;havoc test_#t~nondet38#1; 41#L732true assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 9#L982true assume { :end_inline_startSystem } true; 45#L740-2true assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret28#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~9#1;havoc isPumpRunning_~retValue_acc~9#1;isPumpRunning_~retValue_acc~9#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~9#1; 39#L884true __utac_acc__Specification5_spec__2_#t~ret28#1 := isPumpRunning_#res#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret28#1;havoc __utac_acc__Specification5_spec__2_#t~ret28#1; 68#L549true assume { :end_inline___utac_acc__Specification5_spec__2 } true; 66#L773true assume !(0 != ~pumpRunning~0); 33#L773-2true assume !(0 != ~systemActive~0); 14#L780-1true assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret29#1, __utac_acc__Specification5_spec__3_#t~ret30#1, __utac_acc__Specification5_spec__3_~tmp~4#1, __utac_acc__Specification5_spec__3_~tmp___0~0#1;havoc __utac_acc__Specification5_spec__3_~tmp~4#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~0#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~5#1;havoc getWaterLevel_~retValue_acc~5#1;getWaterLevel_~retValue_acc~5#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~5#1; 67#L662true __utac_acc__Specification5_spec__3_#t~ret29#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~4#1 := __utac_acc__Specification5_spec__3_#t~ret29#1;havoc __utac_acc__Specification5_spec__3_#t~ret29#1; 32#L560true assume !(2 != __utac_acc__Specification5_spec__3_~tmp~4#1); 143#L560-1true assume { :end_inline___utac_acc__Specification5_spec__3 } true; 93#L790true assume { :end_inline_timeShift } true; 149#L702-2true [2022-07-22 02:39:38,599 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 02:39:38,599 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 1 times [2022-07-22 02:39:38,607 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 02:39:38,607 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1102417978] [2022-07-22 02:39:38,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 02:39:38,609 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 02:39:38,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 02:39:38,720 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-22 02:39:38,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 02:39:38,842 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-22 02:39:38,844 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 02:39:38,845 INFO L85 PathProgramCache]: Analyzing trace with hash -161593653, now seen corresponding path program 1 times [2022-07-22 02:39:38,846 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 02:39:38,846 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [686690792] [2022-07-22 02:39:38,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 02:39:38,846 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 02:39:38,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 02:39:38,927 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 02:39:38,928 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 02:39:38,928 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [686690792] [2022-07-22 02:39:38,929 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [686690792] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 02:39:38,929 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 02:39:38,929 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-22 02:39:38,929 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1185875388] [2022-07-22 02:39:38,930 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 02:39:38,934 INFO L769 eck$LassoCheckResult]: loop already infeasible [2022-07-22 02:39:38,935 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 02:39:38,962 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-22 02:39:38,964 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-22 02:39:38,966 INFO L87 Difference]: Start difference. First operand has 177 states, 176 states have (on average 1.3693181818181819) internal successors, (241), 176 states have internal predecessors, (241), 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) [2022-07-22 02:39:39,037 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 02:39:39,038 INFO L93 Difference]: Finished difference Result 338 states and 448 transitions. [2022-07-22 02:39:39,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-22 02:39:39,044 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 338 states and 448 transitions. [2022-07-22 02:39:39,054 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 220 [2022-07-22 02:39:39,059 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 338 states to 318 states and 427 transitions. [2022-07-22 02:39:39,060 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 318 [2022-07-22 02:39:39,061 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 318 [2022-07-22 02:39:39,061 INFO L73 IsDeterministic]: Start isDeterministic. Operand 318 states and 427 transitions. [2022-07-22 02:39:39,064 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-22 02:39:39,064 INFO L369 hiAutomatonCegarLoop]: Abstraction has 318 states and 427 transitions. [2022-07-22 02:39:39,078 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 318 states and 427 transitions. [2022-07-22 02:39:39,098 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 318 to 315. [2022-07-22 02:39:39,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 315 states, 315 states have (on average 1.3428571428571427) internal successors, (423), 314 states have internal predecessors, (423), 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) [2022-07-22 02:39:39,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 315 states to 315 states and 423 transitions. [2022-07-22 02:39:39,102 INFO L392 hiAutomatonCegarLoop]: Abstraction has 315 states and 423 transitions. [2022-07-22 02:39:39,102 INFO L374 stractBuchiCegarLoop]: Abstraction has 315 states and 423 transitions. [2022-07-22 02:39:39,102 INFO L287 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2022-07-22 02:39:39,102 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 315 states and 423 transitions. [2022-07-22 02:39:39,104 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 217 [2022-07-22 02:39:39,104 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-22 02:39:39,105 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-22 02:39:39,105 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 02:39:39,105 INFO L180 hiAutomatonCegarLoop]: 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] [2022-07-22 02:39:39,106 INFO L752 eck$LassoCheckResult]: Stem: 702#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;~cleanupTimeShifts~0 := 4;~switchedOnBeforeTS~0 := 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1; 615#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret27#1, main_~retValue_acc~3#1, main_~tmp~3#1;havoc main_~retValue_acc~3#1;havoc main_~tmp~3#1;assume { :begin_inline_select_helpers } true; 616#L1008 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 608#L1001 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~13#1;havoc valid_product_~retValue_acc~13#1;valid_product_~retValue_acc~13#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~13#1; 565#L1016 main_#t~ret27#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~3#1 := main_#t~ret27#1;havoc main_#t~ret27#1; 566#L508 assume 0 != main_~tmp~3#1;assume { :begin_inline_setup } true; 605#L479 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0; 630#L539 assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet36#1, test_#t~nondet37#1, test_#t~nondet38#1, test_#t~nondet39#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; 631#L702-2 [2022-07-22 02:39:39,106 INFO L754 eck$LassoCheckResult]: Loop: 631#L702-2 assume !false; 712#L703 assume test_~splverifierCounter~0#1 < 4; 713#L704 test_~tmp~5#1 := test_#t~nondet36#1;havoc test_#t~nondet36#1; 758#L712 assume !(0 != test_~tmp~5#1); 756#L712-2 test_~tmp___0~1#1 := test_#t~nondet37#1;havoc test_#t~nondet37#1; 754#L722 assume !(0 != test_~tmp___0~1#1); 752#L722-2 test_~tmp___2~0#1 := test_#t~nondet38#1;havoc test_#t~nondet38#1; 750#L732 assume !(0 != test_~tmp___2~0#1);test_~tmp___1~0#1 := test_#t~nondet39#1;havoc test_#t~nondet39#1; 748#L740 assume !(0 != test_~tmp___1~0#1); 542#L740-2 assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret28#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~9#1;havoc isPumpRunning_~retValue_acc~9#1;isPumpRunning_~retValue_acc~9#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~9#1; 745#L884 __utac_acc__Specification5_spec__2_#t~ret28#1 := isPumpRunning_#res#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret28#1;havoc __utac_acc__Specification5_spec__2_#t~ret28#1; 743#L549 assume { :end_inline___utac_acc__Specification5_spec__2 } true; 740#L773 assume !(0 != ~pumpRunning~0); 738#L773-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret41#1, processEnvironment_~tmp~7#1;havoc processEnvironment_~tmp~7#1; 736#L831 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret40#1, processEnvironment__wrappee__highWaterSensor_~tmp~6#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~6#1; 737#L805-2 assume !(0 == ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true; 732#L797-3 assume { :end_inline_processEnvironment__wrappee__base } true; 722#L805-3 assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 721#L831-1 assume { :end_inline_processEnvironment } true; 720#L780-1 assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret29#1, __utac_acc__Specification5_spec__3_#t~ret30#1, __utac_acc__Specification5_spec__3_~tmp~4#1, __utac_acc__Specification5_spec__3_~tmp___0~0#1;havoc __utac_acc__Specification5_spec__3_~tmp~4#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~0#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~5#1;havoc getWaterLevel_~retValue_acc~5#1;getWaterLevel_~retValue_acc~5#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~5#1; 719#L662 __utac_acc__Specification5_spec__3_#t~ret29#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~4#1 := __utac_acc__Specification5_spec__3_#t~ret29#1;havoc __utac_acc__Specification5_spec__3_#t~ret29#1; 717#L560 assume !(2 != __utac_acc__Specification5_spec__3_~tmp~4#1); 690#L560-1 assume { :end_inline___utac_acc__Specification5_spec__3 } true; 654#L790 assume { :end_inline_timeShift } true; 631#L702-2 [2022-07-22 02:39:39,107 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 02:39:39,107 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 2 times [2022-07-22 02:39:39,107 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 02:39:39,107 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [798155166] [2022-07-22 02:39:39,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 02:39:39,108 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 02:39:39,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 02:39:39,153 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-22 02:39:39,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 02:39:39,180 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-22 02:39:39,181 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 02:39:39,181 INFO L85 PathProgramCache]: Analyzing trace with hash -1051099635, now seen corresponding path program 1 times [2022-07-22 02:39:39,181 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 02:39:39,182 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [416665743] [2022-07-22 02:39:39,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 02:39:39,182 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 02:39:39,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 02:39:39,207 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 02:39:39,208 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 02:39:39,208 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [416665743] [2022-07-22 02:39:39,208 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [416665743] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 02:39:39,208 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 02:39:39,209 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-22 02:39:39,209 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1815153291] [2022-07-22 02:39:39,209 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 02:39:39,209 INFO L769 eck$LassoCheckResult]: loop already infeasible [2022-07-22 02:39:39,210 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 02:39:39,210 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-22 02:39:39,210 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-22 02:39:39,211 INFO L87 Difference]: Start difference. First operand 315 states and 423 transitions. cyclomatic complexity: 111 Second operand has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 02:39:39,284 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 02:39:39,284 INFO L93 Difference]: Finished difference Result 445 states and 576 transitions. [2022-07-22 02:39:39,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-22 02:39:39,285 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 445 states and 576 transitions. [2022-07-22 02:39:39,289 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 315 [2022-07-22 02:39:39,292 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 445 states to 445 states and 576 transitions. [2022-07-22 02:39:39,292 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 445 [2022-07-22 02:39:39,293 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 445 [2022-07-22 02:39:39,293 INFO L73 IsDeterministic]: Start isDeterministic. Operand 445 states and 576 transitions. [2022-07-22 02:39:39,295 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-22 02:39:39,295 INFO L369 hiAutomatonCegarLoop]: Abstraction has 445 states and 576 transitions. [2022-07-22 02:39:39,295 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 445 states and 576 transitions. [2022-07-22 02:39:39,308 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 445 to 445. [2022-07-22 02:39:39,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 445 states, 445 states have (on average 1.29438202247191) internal successors, (576), 444 states have internal predecessors, (576), 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) [2022-07-22 02:39:39,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 445 states to 445 states and 576 transitions. [2022-07-22 02:39:39,311 INFO L392 hiAutomatonCegarLoop]: Abstraction has 445 states and 576 transitions. [2022-07-22 02:39:39,311 INFO L374 stractBuchiCegarLoop]: Abstraction has 445 states and 576 transitions. [2022-07-22 02:39:39,311 INFO L287 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2022-07-22 02:39:39,314 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 445 states and 576 transitions. [2022-07-22 02:39:39,316 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 315 [2022-07-22 02:39:39,317 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-22 02:39:39,318 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-22 02:39:39,318 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 02:39:39,320 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 02:39:39,320 INFO L752 eck$LassoCheckResult]: Stem: 1489#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;~cleanupTimeShifts~0 := 4;~switchedOnBeforeTS~0 := 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1; 1382#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret27#1, main_~retValue_acc~3#1, main_~tmp~3#1;havoc main_~retValue_acc~3#1;havoc main_~tmp~3#1;assume { :begin_inline_select_helpers } true; 1383#L1008 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 1373#L1001 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~13#1;havoc valid_product_~retValue_acc~13#1;valid_product_~retValue_acc~13#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~13#1; 1330#L1016 main_#t~ret27#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~3#1 := main_#t~ret27#1;havoc main_#t~ret27#1; 1331#L508 assume 0 != main_~tmp~3#1;assume { :begin_inline_setup } true; 1369#L479 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0; 1404#L539 assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet36#1, test_#t~nondet37#1, test_#t~nondet38#1, test_#t~nondet39#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; 1405#L702-2 [2022-07-22 02:39:39,321 INFO L754 eck$LassoCheckResult]: Loop: 1405#L702-2 assume !false; 1482#L703 assume test_~splverifierCounter~0#1 < 4; 1610#L704 test_~tmp~5#1 := test_#t~nondet36#1;havoc test_#t~nondet36#1; 1608#L712 assume !(0 != test_~tmp~5#1); 1606#L712-2 test_~tmp___0~1#1 := test_#t~nondet37#1;havoc test_#t~nondet37#1; 1604#L722 assume !(0 != test_~tmp___0~1#1); 1602#L722-2 test_~tmp___2~0#1 := test_#t~nondet38#1;havoc test_#t~nondet38#1; 1601#L732 assume !(0 != test_~tmp___2~0#1);test_~tmp___1~0#1 := test_#t~nondet39#1;havoc test_#t~nondet39#1; 1600#L740 assume !(0 != test_~tmp___1~0#1); 1305#L740-2 assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret28#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~9#1;havoc isPumpRunning_~retValue_acc~9#1;isPumpRunning_~retValue_acc~9#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~9#1; 1599#L884 __utac_acc__Specification5_spec__2_#t~ret28#1 := isPumpRunning_#res#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret28#1;havoc __utac_acc__Specification5_spec__2_#t~ret28#1; 1598#L549 assume { :end_inline___utac_acc__Specification5_spec__2 } true; 1597#L773 assume !(0 != ~pumpRunning~0); 1344#L773-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret41#1, processEnvironment_~tmp~7#1;havoc processEnvironment_~tmp~7#1; 1345#L831 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret40#1, processEnvironment__wrappee__highWaterSensor_~tmp~6#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~6#1; 1573#L805-2 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret51#1, isHighWaterLevel_~retValue_acc~10#1, isHighWaterLevel_~tmp~8#1, isHighWaterLevel_~tmp___0~2#1;havoc isHighWaterLevel_~retValue_acc~10#1;havoc isHighWaterLevel_~tmp~8#1;havoc isHighWaterLevel_~tmp___0~2#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~6#1;havoc isHighWaterSensorDry_~retValue_acc~6#1; 1571#L670-1 assume !(~waterLevel~0 < 2);isHighWaterSensorDry_~retValue_acc~6#1 := 0;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~6#1; 1569#L675-1 isHighWaterLevel_#t~ret51#1 := isHighWaterSensorDry_#res#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~8#1 := isHighWaterLevel_#t~ret51#1;havoc isHighWaterLevel_#t~ret51#1; 1567#L933-3 assume 0 != isHighWaterLevel_~tmp~8#1;isHighWaterLevel_~tmp___0~2#1 := 0; 1565#L933-5 isHighWaterLevel_~retValue_acc~10#1 := isHighWaterLevel_~tmp___0~2#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~10#1; 1563#L939-1 processEnvironment__wrappee__highWaterSensor_#t~ret40#1 := isHighWaterLevel_#res#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~6#1 := processEnvironment__wrappee__highWaterSensor_#t~ret40#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret40#1; 1561#L809-3 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~6#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 1367#L797-2 assume { :end_inline_processEnvironment__wrappee__base } true; 1368#L805-3 assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 1380#L831-1 assume { :end_inline_processEnvironment } true; 1381#L780-1 assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret29#1, __utac_acc__Specification5_spec__3_#t~ret30#1, __utac_acc__Specification5_spec__3_~tmp~4#1, __utac_acc__Specification5_spec__3_~tmp___0~0#1;havoc __utac_acc__Specification5_spec__3_~tmp~4#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~0#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~5#1;havoc getWaterLevel_~retValue_acc~5#1;getWaterLevel_~retValue_acc~5#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~5#1; 1396#L662 __utac_acc__Specification5_spec__3_#t~ret29#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~4#1 := __utac_acc__Specification5_spec__3_#t~ret29#1;havoc __utac_acc__Specification5_spec__3_#t~ret29#1; 1397#L560 assume !(2 != __utac_acc__Specification5_spec__3_~tmp~4#1); 1478#L560-1 assume { :end_inline___utac_acc__Specification5_spec__3 } true; 1479#L790 assume { :end_inline_timeShift } true; 1405#L702-2 [2022-07-22 02:39:39,322 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 02:39:39,322 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 3 times [2022-07-22 02:39:39,322 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 02:39:39,322 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2085581800] [2022-07-22 02:39:39,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 02:39:39,323 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 02:39:39,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 02:39:39,346 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-22 02:39:39,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 02:39:39,385 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-22 02:39:39,386 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 02:39:39,386 INFO L85 PathProgramCache]: Analyzing trace with hash -894683677, now seen corresponding path program 1 times [2022-07-22 02:39:39,386 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 02:39:39,387 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1189975007] [2022-07-22 02:39:39,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 02:39:39,387 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 02:39:39,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 02:39:39,421 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 02:39:39,421 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 02:39:39,421 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1189975007] [2022-07-22 02:39:39,422 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1189975007] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 02:39:39,422 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 02:39:39,422 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-22 02:39:39,422 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1770062450] [2022-07-22 02:39:39,423 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 02:39:39,423 INFO L769 eck$LassoCheckResult]: loop already infeasible [2022-07-22 02:39:39,424 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 02:39:39,424 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-22 02:39:39,425 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-22 02:39:39,425 INFO L87 Difference]: Start difference. First operand 445 states and 576 transitions. cyclomatic complexity: 134 Second operand has 4 states, 4 states have (on average 7.5) 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) [2022-07-22 02:39:39,540 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 02:39:39,541 INFO L93 Difference]: Finished difference Result 1271 states and 1616 transitions. [2022-07-22 02:39:39,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-22 02:39:39,544 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 1271 states and 1616 transitions. [2022-07-22 02:39:39,555 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 913 [2022-07-22 02:39:39,563 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 1271 states to 1271 states and 1616 transitions. [2022-07-22 02:39:39,564 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 1271 [2022-07-22 02:39:39,565 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 1271 [2022-07-22 02:39:39,565 INFO L73 IsDeterministic]: Start isDeterministic. Operand 1271 states and 1616 transitions. [2022-07-22 02:39:39,568 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-22 02:39:39,569 INFO L369 hiAutomatonCegarLoop]: Abstraction has 1271 states and 1616 transitions. [2022-07-22 02:39:39,570 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1271 states and 1616 transitions. [2022-07-22 02:39:39,597 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1271 to 469. [2022-07-22 02:39:39,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 469 states, 469 states have (on average 1.279317697228145) internal successors, (600), 468 states have internal predecessors, (600), 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) [2022-07-22 02:39:39,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 469 states to 469 states and 600 transitions. [2022-07-22 02:39:39,600 INFO L392 hiAutomatonCegarLoop]: Abstraction has 469 states and 600 transitions. [2022-07-22 02:39:39,600 INFO L374 stractBuchiCegarLoop]: Abstraction has 469 states and 600 transitions. [2022-07-22 02:39:39,601 INFO L287 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2022-07-22 02:39:39,601 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 469 states and 600 transitions. [2022-07-22 02:39:39,603 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 331 [2022-07-22 02:39:39,604 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-22 02:39:39,604 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-22 02:39:39,606 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 02:39:39,606 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 02:39:39,607 INFO L752 eck$LassoCheckResult]: Stem: 3226#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;~cleanupTimeShifts~0 := 4;~switchedOnBeforeTS~0 := 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1; 3109#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret27#1, main_~retValue_acc~3#1, main_~tmp~3#1;havoc main_~retValue_acc~3#1;havoc main_~tmp~3#1;assume { :begin_inline_select_helpers } true; 3110#L1008 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 3101#L1001 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~13#1;havoc valid_product_~retValue_acc~13#1;valid_product_~retValue_acc~13#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~13#1; 3057#L1016 main_#t~ret27#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~3#1 := main_#t~ret27#1;havoc main_#t~ret27#1; 3058#L508 assume 0 != main_~tmp~3#1;assume { :begin_inline_setup } true; 3097#L479 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0; 3127#L539 assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet36#1, test_#t~nondet37#1, test_#t~nondet38#1, test_#t~nondet39#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; 3128#L702-2 [2022-07-22 02:39:39,607 INFO L754 eck$LassoCheckResult]: Loop: 3128#L702-2 assume !false; 3263#L703 assume test_~splverifierCounter~0#1 < 4; 3264#L704 test_~tmp~5#1 := test_#t~nondet36#1;havoc test_#t~nondet36#1; 3329#L712 assume !(0 != test_~tmp~5#1); 3326#L712-2 test_~tmp___0~1#1 := test_#t~nondet37#1;havoc test_#t~nondet37#1; 3323#L722 assume !(0 != test_~tmp___0~1#1); 3320#L722-2 test_~tmp___2~0#1 := test_#t~nondet38#1;havoc test_#t~nondet38#1; 3319#L732 assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 3030#L982 assume { :end_inline_startSystem } true; 3031#L740-2 assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret28#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~9#1;havoc isPumpRunning_~retValue_acc~9#1;isPumpRunning_~retValue_acc~9#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~9#1; 3081#L884 __utac_acc__Specification5_spec__2_#t~ret28#1 := isPumpRunning_#res#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret28#1;havoc __utac_acc__Specification5_spec__2_#t~ret28#1; 3082#L549 assume { :end_inline___utac_acc__Specification5_spec__2 } true; 3121#L773 assume !(0 != ~pumpRunning~0); 3073#L773-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret41#1, processEnvironment_~tmp~7#1;havoc processEnvironment_~tmp~7#1; 3074#L831 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret40#1, processEnvironment__wrappee__highWaterSensor_~tmp~6#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~6#1; 3205#L805-2 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret51#1, isHighWaterLevel_~retValue_acc~10#1, isHighWaterLevel_~tmp~8#1, isHighWaterLevel_~tmp___0~2#1;havoc isHighWaterLevel_~retValue_acc~10#1;havoc isHighWaterLevel_~tmp~8#1;havoc isHighWaterLevel_~tmp___0~2#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~6#1;havoc isHighWaterSensorDry_~retValue_acc~6#1; 3229#L670-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~6#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~6#1; 3201#L675-1 isHighWaterLevel_#t~ret51#1 := isHighWaterSensorDry_#res#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~8#1 := isHighWaterLevel_#t~ret51#1;havoc isHighWaterLevel_#t~ret51#1; 3202#L933-3 assume 0 != isHighWaterLevel_~tmp~8#1;isHighWaterLevel_~tmp___0~2#1 := 0; 3358#L933-5 isHighWaterLevel_~retValue_acc~10#1 := isHighWaterLevel_~tmp___0~2#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~10#1; 3357#L939-1 processEnvironment__wrappee__highWaterSensor_#t~ret40#1 := isHighWaterLevel_#res#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~6#1 := processEnvironment__wrappee__highWaterSensor_#t~ret40#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret40#1; 3356#L809-3 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~6#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 3354#L797-2 assume { :end_inline_processEnvironment__wrappee__base } true; 3351#L805-3 assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 3349#L831-1 assume { :end_inline_processEnvironment } true; 3309#L780-1 assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret29#1, __utac_acc__Specification5_spec__3_#t~ret30#1, __utac_acc__Specification5_spec__3_~tmp~4#1, __utac_acc__Specification5_spec__3_~tmp___0~0#1;havoc __utac_acc__Specification5_spec__3_~tmp~4#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~0#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~5#1;havoc getWaterLevel_~retValue_acc~5#1;getWaterLevel_~retValue_acc~5#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~5#1; 3308#L662 __utac_acc__Specification5_spec__3_#t~ret29#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~4#1 := __utac_acc__Specification5_spec__3_#t~ret29#1;havoc __utac_acc__Specification5_spec__3_#t~ret29#1; 3303#L560 assume !(2 != __utac_acc__Specification5_spec__3_~tmp~4#1); 3300#L560-1 assume { :end_inline___utac_acc__Specification5_spec__3 } true; 3299#L790 assume { :end_inline_timeShift } true; 3128#L702-2 [2022-07-22 02:39:39,608 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 02:39:39,608 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 4 times [2022-07-22 02:39:39,608 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 02:39:39,609 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1681190389] [2022-07-22 02:39:39,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 02:39:39,609 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 02:39:39,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 02:39:39,635 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-22 02:39:39,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 02:39:39,655 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-22 02:39:39,656 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 02:39:39,656 INFO L85 PathProgramCache]: Analyzing trace with hash 1757617779, now seen corresponding path program 1 times [2022-07-22 02:39:39,656 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 02:39:39,656 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [389406855] [2022-07-22 02:39:39,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 02:39:39,657 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 02:39:39,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 02:39:39,698 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 02:39:39,699 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 02:39:39,699 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [389406855] [2022-07-22 02:39:39,699 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [389406855] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 02:39:39,700 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 02:39:39,701 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-22 02:39:39,701 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1712822838] [2022-07-22 02:39:39,701 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 02:39:39,702 INFO L769 eck$LassoCheckResult]: loop already infeasible [2022-07-22 02:39:39,702 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 02:39:39,704 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-22 02:39:39,704 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-22 02:39:39,705 INFO L87 Difference]: Start difference. First operand 469 states and 600 transitions. cyclomatic complexity: 134 Second operand has 5 states, 5 states have (on average 6.0) internal successors, (30), 5 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) [2022-07-22 02:39:39,954 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 02:39:39,954 INFO L93 Difference]: Finished difference Result 2075 states and 2615 transitions. [2022-07-22 02:39:39,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-22 02:39:39,955 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 2075 states and 2615 transitions. [2022-07-22 02:39:39,980 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 1446 [2022-07-22 02:39:39,986 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 2075 states to 2075 states and 2615 transitions. [2022-07-22 02:39:39,986 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 2075 [2022-07-22 02:39:39,988 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 2075 [2022-07-22 02:39:39,991 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2075 states and 2615 transitions. [2022-07-22 02:39:39,993 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-22 02:39:40,005 INFO L369 hiAutomatonCegarLoop]: Abstraction has 2075 states and 2615 transitions. [2022-07-22 02:39:40,006 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2075 states and 2615 transitions. [2022-07-22 02:39:40,035 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2075 to 900. [2022-07-22 02:39:40,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 900 states, 900 states have (on average 1.2577777777777779) internal successors, (1132), 899 states have internal predecessors, (1132), 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) [2022-07-22 02:39:40,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 900 states to 900 states and 1132 transitions. [2022-07-22 02:39:40,040 INFO L392 hiAutomatonCegarLoop]: Abstraction has 900 states and 1132 transitions. [2022-07-22 02:39:40,040 INFO L374 stractBuchiCegarLoop]: Abstraction has 900 states and 1132 transitions. [2022-07-22 02:39:40,040 INFO L287 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2022-07-22 02:39:40,040 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 900 states and 1132 transitions. [2022-07-22 02:39:40,055 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 642 [2022-07-22 02:39:40,055 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-22 02:39:40,055 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-22 02:39:40,056 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 02:39:40,056 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 02:39:40,056 INFO L752 eck$LassoCheckResult]: Stem: 5780#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;~cleanupTimeShifts~0 := 4;~switchedOnBeforeTS~0 := 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1; 5670#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret27#1, main_~retValue_acc~3#1, main_~tmp~3#1;havoc main_~retValue_acc~3#1;havoc main_~tmp~3#1;assume { :begin_inline_select_helpers } true; 5671#L1008 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 5662#L1001 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~13#1;havoc valid_product_~retValue_acc~13#1;valid_product_~retValue_acc~13#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~13#1; 5620#L1016 main_#t~ret27#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~3#1 := main_#t~ret27#1;havoc main_#t~ret27#1; 5621#L508 assume 0 != main_~tmp~3#1;assume { :begin_inline_setup } true; 5658#L479 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0; 5689#L539 assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet36#1, test_#t~nondet37#1, test_#t~nondet38#1, test_#t~nondet39#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; 5690#L702-2 [2022-07-22 02:39:40,056 INFO L754 eck$LassoCheckResult]: Loop: 5690#L702-2 assume !false; 6061#L703 assume test_~splverifierCounter~0#1 < 4; 6060#L704 test_~tmp~5#1 := test_#t~nondet36#1;havoc test_#t~nondet36#1; 6058#L712 assume !(0 != test_~tmp~5#1); 6056#L712-2 test_~tmp___0~1#1 := test_#t~nondet37#1;havoc test_#t~nondet37#1; 6054#L722 assume !(0 != test_~tmp___0~1#1); 6052#L722-2 test_~tmp___2~0#1 := test_#t~nondet38#1;havoc test_#t~nondet38#1; 6051#L732 assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 6049#L982 assume { :end_inline_startSystem } true; 5998#L740-2 assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret28#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~9#1;havoc isPumpRunning_~retValue_acc~9#1;isPumpRunning_~retValue_acc~9#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~9#1; 5978#L884 __utac_acc__Specification5_spec__2_#t~ret28#1 := isPumpRunning_#res#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret28#1;havoc __utac_acc__Specification5_spec__2_#t~ret28#1; 5977#L549 assume { :end_inline___utac_acc__Specification5_spec__2 } true; 5975#L773 assume !(0 != ~pumpRunning~0); 5974#L773-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret41#1, processEnvironment_~tmp~7#1;havoc processEnvironment_~tmp~7#1; 5919#L831 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret40#1, processEnvironment__wrappee__highWaterSensor_~tmp~6#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~6#1; 5917#L805-2 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret51#1, isHighWaterLevel_~retValue_acc~10#1, isHighWaterLevel_~tmp~8#1, isHighWaterLevel_~tmp___0~2#1;havoc isHighWaterLevel_~retValue_acc~10#1;havoc isHighWaterLevel_~tmp~8#1;havoc isHighWaterLevel_~tmp___0~2#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~6#1;havoc isHighWaterSensorDry_~retValue_acc~6#1; 5914#L670-1 assume !(~waterLevel~0 < 2);isHighWaterSensorDry_~retValue_acc~6#1 := 0;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~6#1; 5912#L675-1 isHighWaterLevel_#t~ret51#1 := isHighWaterSensorDry_#res#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~8#1 := isHighWaterLevel_#t~ret51#1;havoc isHighWaterLevel_#t~ret51#1; 5910#L933-3 assume !(0 != isHighWaterLevel_~tmp~8#1);isHighWaterLevel_~tmp___0~2#1 := 1; 5907#L933-5 isHighWaterLevel_~retValue_acc~10#1 := isHighWaterLevel_~tmp___0~2#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~10#1; 5905#L939-1 processEnvironment__wrappee__highWaterSensor_#t~ret40#1 := isHighWaterLevel_#res#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~6#1 := processEnvironment__wrappee__highWaterSensor_#t~ret40#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret40#1; 5901#L809-3 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~6#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 5902#L797-2 assume { :end_inline_processEnvironment__wrappee__base } true; 6103#L805-3 assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 6071#L831-1 assume { :end_inline_processEnvironment } true; 6070#L780-1 assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret29#1, __utac_acc__Specification5_spec__3_#t~ret30#1, __utac_acc__Specification5_spec__3_~tmp~4#1, __utac_acc__Specification5_spec__3_~tmp___0~0#1;havoc __utac_acc__Specification5_spec__3_~tmp~4#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~0#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~5#1;havoc getWaterLevel_~retValue_acc~5#1;getWaterLevel_~retValue_acc~5#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~5#1; 6069#L662 __utac_acc__Specification5_spec__3_#t~ret29#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~4#1 := __utac_acc__Specification5_spec__3_#t~ret29#1;havoc __utac_acc__Specification5_spec__3_#t~ret29#1; 6068#L560 assume 2 != __utac_acc__Specification5_spec__3_~tmp~4#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~9#1;havoc isPumpRunning_~retValue_acc~9#1;isPumpRunning_~retValue_acc~9#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~9#1; 6067#L884-1 __utac_acc__Specification5_spec__3_#t~ret30#1 := isPumpRunning_#res#1;assume { :end_inline_isPumpRunning } true;__utac_acc__Specification5_spec__3_~tmp___0~0#1 := __utac_acc__Specification5_spec__3_#t~ret30#1;havoc __utac_acc__Specification5_spec__3_#t~ret30#1; 6066#L564 assume !(0 != __utac_acc__Specification5_spec__3_~tmp___0~0#1); 6064#L560-1 assume { :end_inline___utac_acc__Specification5_spec__3 } true; 6063#L790 assume { :end_inline_timeShift } true; 5690#L702-2 [2022-07-22 02:39:40,057 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 02:39:40,057 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 5 times [2022-07-22 02:39:40,057 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 02:39:40,057 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1578082205] [2022-07-22 02:39:40,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 02:39:40,057 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 02:39:40,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 02:39:40,064 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-22 02:39:40,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 02:39:40,073 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-22 02:39:40,073 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 02:39:40,073 INFO L85 PathProgramCache]: Analyzing trace with hash -902743382, now seen corresponding path program 1 times [2022-07-22 02:39:40,073 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 02:39:40,074 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [139173315] [2022-07-22 02:39:40,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 02:39:40,074 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 02:39:40,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 02:39:40,096 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 02:39:40,096 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 02:39:40,096 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [139173315] [2022-07-22 02:39:40,096 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [139173315] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 02:39:40,097 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 02:39:40,097 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-22 02:39:40,097 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1710702301] [2022-07-22 02:39:40,097 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 02:39:40,097 INFO L769 eck$LassoCheckResult]: loop already infeasible [2022-07-22 02:39:40,097 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 02:39:40,097 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-22 02:39:40,097 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-22 02:39:40,098 INFO L87 Difference]: Start difference. First operand 900 states and 1132 transitions. cyclomatic complexity: 235 Second operand has 5 states, 5 states have (on average 6.4) internal successors, (32), 5 states have internal predecessors, (32), 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) [2022-07-22 02:39:40,191 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 02:39:40,191 INFO L93 Difference]: Finished difference Result 2726 states and 3427 transitions. [2022-07-22 02:39:40,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-22 02:39:40,192 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 2726 states and 3427 transitions. [2022-07-22 02:39:40,213 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 2000 [2022-07-22 02:39:40,222 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 2726 states to 2726 states and 3427 transitions. [2022-07-22 02:39:40,222 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 2726 [2022-07-22 02:39:40,224 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 2726 [2022-07-22 02:39:40,224 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2726 states and 3427 transitions. [2022-07-22 02:39:40,226 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-22 02:39:40,226 INFO L369 hiAutomatonCegarLoop]: Abstraction has 2726 states and 3427 transitions. [2022-07-22 02:39:40,227 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2726 states and 3427 transitions. [2022-07-22 02:39:40,241 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2726 to 912. [2022-07-22 02:39:40,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 912 states, 912 states have (on average 1.2412280701754386) internal successors, (1132), 911 states have internal predecessors, (1132), 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) [2022-07-22 02:39:40,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 912 states to 912 states and 1132 transitions. [2022-07-22 02:39:40,244 INFO L392 hiAutomatonCegarLoop]: Abstraction has 912 states and 1132 transitions. [2022-07-22 02:39:40,244 INFO L374 stractBuchiCegarLoop]: Abstraction has 912 states and 1132 transitions. [2022-07-22 02:39:40,245 INFO L287 stractBuchiCegarLoop]: ======== Iteration 6 ============ [2022-07-22 02:39:40,245 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 912 states and 1132 transitions. [2022-07-22 02:39:40,247 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 650 [2022-07-22 02:39:40,247 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-22 02:39:40,248 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-22 02:39:40,248 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 02:39:40,248 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 02:39:40,248 INFO L752 eck$LassoCheckResult]: Stem: 9456#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;~cleanupTimeShifts~0 := 4;~switchedOnBeforeTS~0 := 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1; 9316#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret27#1, main_~retValue_acc~3#1, main_~tmp~3#1;havoc main_~retValue_acc~3#1;havoc main_~tmp~3#1;assume { :begin_inline_select_helpers } true; 9317#L1008 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 9308#L1001 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~13#1;havoc valid_product_~retValue_acc~13#1;valid_product_~retValue_acc~13#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~13#1; 9259#L1016 main_#t~ret27#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~3#1 := main_#t~ret27#1;havoc main_#t~ret27#1; 9260#L508 assume 0 != main_~tmp~3#1;assume { :begin_inline_setup } true; 9302#L479 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0; 9339#L539 assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet36#1, test_#t~nondet37#1, test_#t~nondet38#1, test_#t~nondet39#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; 9340#L702-2 [2022-07-22 02:39:40,249 INFO L754 eck$LassoCheckResult]: Loop: 9340#L702-2 assume !false; 9554#L703 assume test_~splverifierCounter~0#1 < 4; 9346#L704 test_~tmp~5#1 := test_#t~nondet36#1;havoc test_#t~nondet36#1; 9347#L712 assume !(0 != test_~tmp~5#1); 9366#L712-2 test_~tmp___0~1#1 := test_#t~nondet37#1;havoc test_#t~nondet37#1; 9358#L722 assume !(0 != test_~tmp___0~1#1); 9360#L722-2 test_~tmp___2~0#1 := test_#t~nondet38#1;havoc test_#t~nondet38#1; 9291#L732 assume !(0 != test_~tmp___2~0#1);test_~tmp___1~0#1 := test_#t~nondet39#1;havoc test_#t~nondet39#1; 9292#L740 assume !(0 != test_~tmp___1~0#1); 9232#L740-2 assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret28#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~9#1;havoc isPumpRunning_~retValue_acc~9#1;isPumpRunning_~retValue_acc~9#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~9#1; 9286#L884 __utac_acc__Specification5_spec__2_#t~ret28#1 := isPumpRunning_#res#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret28#1;havoc __utac_acc__Specification5_spec__2_#t~ret28#1; 9287#L549 assume { :end_inline___utac_acc__Specification5_spec__2 } true; 9333#L773 assume !(0 != ~pumpRunning~0); 9276#L773-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret41#1, processEnvironment_~tmp~7#1;havoc processEnvironment_~tmp~7#1; 9277#L831 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret40#1, processEnvironment__wrappee__highWaterSensor_~tmp~6#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~6#1; 9459#L805-2 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret51#1, isHighWaterLevel_~retValue_acc~10#1, isHighWaterLevel_~tmp~8#1, isHighWaterLevel_~tmp___0~2#1;havoc isHighWaterLevel_~retValue_acc~10#1;havoc isHighWaterLevel_~tmp~8#1;havoc isHighWaterLevel_~tmp___0~2#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~6#1;havoc isHighWaterSensorDry_~retValue_acc~6#1; 9460#L670-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~6#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~6#1; 9528#L675-1 isHighWaterLevel_#t~ret51#1 := isHighWaterSensorDry_#res#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~8#1 := isHighWaterLevel_#t~ret51#1;havoc isHighWaterLevel_#t~ret51#1; 9529#L933-3 assume 0 != isHighWaterLevel_~tmp~8#1;isHighWaterLevel_~tmp___0~2#1 := 0; 9520#L933-5 isHighWaterLevel_~retValue_acc~10#1 := isHighWaterLevel_~tmp___0~2#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~10#1; 9521#L939-1 processEnvironment__wrappee__highWaterSensor_#t~ret40#1 := isHighWaterLevel_#res#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~6#1 := processEnvironment__wrappee__highWaterSensor_#t~ret40#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret40#1; 9513#L809-3 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~6#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 9300#L797-2 assume { :end_inline_processEnvironment__wrappee__base } true; 9301#L805-3 assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 9318#L831-1 assume { :end_inline_processEnvironment } true; 9806#L780-1 assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret29#1, __utac_acc__Specification5_spec__3_#t~ret30#1, __utac_acc__Specification5_spec__3_~tmp~4#1, __utac_acc__Specification5_spec__3_~tmp___0~0#1;havoc __utac_acc__Specification5_spec__3_~tmp~4#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~0#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~5#1;havoc getWaterLevel_~retValue_acc~5#1;getWaterLevel_~retValue_acc~5#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~5#1; 9805#L662 __utac_acc__Specification5_spec__3_#t~ret29#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~4#1 := __utac_acc__Specification5_spec__3_#t~ret29#1;havoc __utac_acc__Specification5_spec__3_#t~ret29#1; 9274#L560 assume 2 != __utac_acc__Specification5_spec__3_~tmp~4#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~9#1;havoc isPumpRunning_~retValue_acc~9#1;isPumpRunning_~retValue_acc~9#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~9#1; 9275#L884-1 __utac_acc__Specification5_spec__3_#t~ret30#1 := isPumpRunning_#res#1;assume { :end_inline_isPumpRunning } true;__utac_acc__Specification5_spec__3_~tmp___0~0#1 := __utac_acc__Specification5_spec__3_#t~ret30#1;havoc __utac_acc__Specification5_spec__3_#t~ret30#1; 9559#L564 assume !(0 != __utac_acc__Specification5_spec__3_~tmp___0~0#1); 9557#L560-1 assume { :end_inline___utac_acc__Specification5_spec__3 } true; 9556#L790 assume { :end_inline_timeShift } true; 9340#L702-2 [2022-07-22 02:39:40,250 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 02:39:40,250 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 6 times [2022-07-22 02:39:40,250 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 02:39:40,250 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [261771410] [2022-07-22 02:39:40,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 02:39:40,250 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 02:39:40,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 02:39:40,259 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-22 02:39:40,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 02:39:40,281 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-22 02:39:40,283 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 02:39:40,283 INFO L85 PathProgramCache]: Analyzing trace with hash 204417888, now seen corresponding path program 1 times [2022-07-22 02:39:40,283 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 02:39:40,284 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [694727183] [2022-07-22 02:39:40,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 02:39:40,284 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 02:39:40,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 02:39:40,289 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-22 02:39:40,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 02:39:40,296 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-22 02:39:40,298 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 02:39:40,298 INFO L85 PathProgramCache]: Analyzing trace with hash 800975433, now seen corresponding path program 1 times [2022-07-22 02:39:40,299 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 02:39:40,299 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1573710581] [2022-07-22 02:39:40,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 02:39:40,299 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 02:39:40,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 02:39:40,320 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-22 02:39:40,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 02:39:40,345 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-22 02:39:42,623 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 22.07 02:39:42 BoogieIcfgContainer [2022-07-22 02:39:42,624 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-07-22 02:39:42,624 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-22 02:39:42,624 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-22 02:39:42,624 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-22 02:39:42,625 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 02:39:38" (3/4) ... [2022-07-22 02:39:42,626 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2022-07-22 02:39:42,679 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-07-22 02:39:42,679 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-22 02:39:42,681 INFO L158 Benchmark]: Toolchain (without parser) took 5652.26ms. Allocated memory was 58.7MB in the beginning and 130.0MB in the end (delta: 71.3MB). Free memory was 36.3MB in the beginning and 39.5MB in the end (delta: -3.2MB). Peak memory consumption was 67.4MB. Max. memory is 16.1GB. [2022-07-22 02:39:42,681 INFO L158 Benchmark]: CDTParser took 0.46ms. Allocated memory is still 58.7MB. Free memory was 39.4MB in the beginning and 39.4MB in the end (delta: 50.8kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-22 02:39:42,682 INFO L158 Benchmark]: CACSL2BoogieTranslator took 550.90ms. Allocated memory is still 58.7MB. Free memory was 36.1MB in the beginning and 33.2MB in the end (delta: 2.9MB). Peak memory consumption was 9.3MB. Max. memory is 16.1GB. [2022-07-22 02:39:42,682 INFO L158 Benchmark]: Boogie Procedure Inliner took 85.83ms. Allocated memory is still 58.7MB. Free memory was 33.2MB in the beginning and 29.7MB in the end (delta: 3.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-07-22 02:39:42,684 INFO L158 Benchmark]: Boogie Preprocessor took 78.98ms. Allocated memory was 58.7MB in the beginning and 71.3MB in the end (delta: 12.6MB). Free memory was 29.7MB in the beginning and 53.0MB in the end (delta: -23.3MB). Peak memory consumption was 5.7MB. Max. memory is 16.1GB. [2022-07-22 02:39:42,685 INFO L158 Benchmark]: RCFGBuilder took 709.21ms. Allocated memory is still 71.3MB. Free memory was 53.0MB in the beginning and 47.3MB in the end (delta: 5.8MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2022-07-22 02:39:42,687 INFO L158 Benchmark]: BuchiAutomizer took 4165.85ms. Allocated memory was 71.3MB in the beginning and 130.0MB in the end (delta: 58.7MB). Free memory was 47.3MB in the beginning and 42.5MB in the end (delta: 4.7MB). Peak memory consumption was 67.0MB. Max. memory is 16.1GB. [2022-07-22 02:39:42,688 INFO L158 Benchmark]: Witness Printer took 54.80ms. Allocated memory is still 130.0MB. Free memory was 42.5MB in the beginning and 39.5MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-22 02:39:42,689 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.46ms. Allocated memory is still 58.7MB. Free memory was 39.4MB in the beginning and 39.4MB in the end (delta: 50.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 550.90ms. Allocated memory is still 58.7MB. Free memory was 36.1MB in the beginning and 33.2MB in the end (delta: 2.9MB). Peak memory consumption was 9.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 85.83ms. Allocated memory is still 58.7MB. Free memory was 33.2MB in the beginning and 29.7MB in the end (delta: 3.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 78.98ms. Allocated memory was 58.7MB in the beginning and 71.3MB in the end (delta: 12.6MB). Free memory was 29.7MB in the beginning and 53.0MB in the end (delta: -23.3MB). Peak memory consumption was 5.7MB. Max. memory is 16.1GB. * RCFGBuilder took 709.21ms. Allocated memory is still 71.3MB. Free memory was 53.0MB in the beginning and 47.3MB in the end (delta: 5.8MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * BuchiAutomizer took 4165.85ms. Allocated memory was 71.3MB in the beginning and 130.0MB in the end (delta: 58.7MB). Free memory was 47.3MB in the beginning and 42.5MB in the end (delta: 4.7MB). Peak memory consumption was 67.0MB. Max. memory is 16.1GB. * Witness Printer took 54.80ms. Allocated memory is still 130.0MB. Free memory was 42.5MB in the beginning and 39.5MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 5 terminating modules (5 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.5 modules have a trivial ranking function, the largest among these consists of 5 locations. The remainder module has 912 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 4.1s and 6 iterations. TraceHistogramMax:1. Analysis of lassos took 3.0s. Construction of modules took 0.3s. Büchi inclusion checks took 0.3s. Highest rank in rank-based complementation 0. Minimization of det autom 5. Minimization of nondet autom 0. Automata minimization 0.1s AutomataMinimizationTime, 5 MinimizatonAttempts, 3794 StatesRemovedByMinimization, 4 NontrivialMinimizations. Non-live state removal took 0.1s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2614 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2614 mSDsluCounter, 4235 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2687 mSDsCounter, 103 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 348 IncrementalHoareTripleChecker+Invalid, 451 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 103 mSolverCounterUnsat, 1548 mSDtfsCounter, 348 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI5 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 702]: 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, retValue_acc=0, NULL=0, head=0, tmp___0=0, pumpRunning=0, NULL=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@374e7bf2=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@792f083b=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4f75c0be=0, tmp___0=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2bf5f738=0, retValue_acc=1, tmp=0, methaneLevelCritical=0, retValue_acc=0, retValue_acc=1, retValue_acc=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4def7fbd=0, tmp=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1e5e7af3=0, \result=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4e283ffd=0, \result=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@f97f36b=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@34889da3=0, tmp=1, tmp___2=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@208a2819=0, \result=0, tmp=1, cleanupTimeShifts=4, switchedOnBeforeTS=0, \result=0, tmp___0=0, head=0, \result=1, tmp___1=0, retValue_acc=1, NULL=0, waterLevel=1, systemActive=1, tmp=0, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1b024477=0, tmp=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 702]: 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; [L416] int cleanupTimeShifts = 4; [L533] int switchedOnBeforeTS ; [L587] int waterLevel = 1; [L588] int methaneLevelCritical = 0; [L763] int pumpRunning = 0; [L764] int systemActive = 1; [L499] int retValue_acc ; [L500] int tmp ; [L504] FCALL select_helpers() [L505] FCALL select_features() [L506] CALL, EXPR valid_product() [L1012] int retValue_acc ; [L1015] retValue_acc = 1 [L1016] return (retValue_acc); [L506] RET, EXPR valid_product() [L506] tmp = valid_product() [L508] COND TRUE \read(tmp) [L510] FCALL setup() [L511] CALL runTest() [L489] CALL __utac_acc__Specification5_spec__1() [L538] switchedOnBeforeTS = 0 [L489] RET __utac_acc__Specification5_spec__1() [L490] CALL test() [L693] int splverifierCounter ; [L694] int tmp ; [L695] int tmp___0 ; [L696] int tmp___1 ; [L697] int tmp___2 ; [L700] splverifierCounter = 0 Loop: [L702] COND TRUE 1 [L704] COND TRUE splverifierCounter < 4 [L710] tmp = __VERIFIER_nondet_int() [L712] COND FALSE !(\read(tmp)) [L720] tmp___0 = __VERIFIER_nondet_int() [L722] COND FALSE !(\read(tmp___0)) [L730] tmp___2 = __VERIFIER_nondet_int() [L732] COND FALSE !(\read(tmp___2)) [L738] tmp___1 = __VERIFIER_nondet_int() [L740] COND FALSE !(\read(tmp___1)) [L749] CALL timeShift() [L771] CALL __utac_acc__Specification5_spec__2() [L547] CALL, EXPR isPumpRunning() [L880] int retValue_acc ; [L883] retValue_acc = pumpRunning [L884] return (retValue_acc); [L547] RET, EXPR isPumpRunning() [L547] switchedOnBeforeTS = isPumpRunning() [L771] RET __utac_acc__Specification5_spec__2() [L773] COND FALSE !(\read(pumpRunning)) [L780] COND TRUE \read(systemActive) [L782] CALL processEnvironment() [L828] int tmp ; [L831] COND FALSE !(\read(pumpRunning)) [L846] CALL processEnvironment__wrappee__highWaterSensor() [L802] int tmp ; [L805] COND TRUE ! pumpRunning [L807] CALL, EXPR isHighWaterLevel() [L925] int retValue_acc ; [L926] int tmp ; [L927] int tmp___0 ; [L931] CALL, EXPR isHighWaterSensorDry() [L667] int retValue_acc ; [L670] COND TRUE waterLevel < 2 [L671] retValue_acc = 1 [L672] return (retValue_acc); [L931] RET, EXPR isHighWaterSensorDry() [L931] tmp = isHighWaterSensorDry() [L933] COND TRUE \read(tmp) [L934] tmp___0 = 0 [L938] retValue_acc = tmp___0 [L939] return (retValue_acc); [L807] RET, EXPR isHighWaterLevel() [L807] tmp = isHighWaterLevel() [L809] COND FALSE !(\read(tmp)) [L815] FCALL processEnvironment__wrappee__base() [L846] RET processEnvironment__wrappee__highWaterSensor() [L782] RET processEnvironment() [L788] CALL __utac_acc__Specification5_spec__3() [L553] int tmp ; [L554] int tmp___0 ; [L558] CALL, EXPR getWaterLevel() [L658] int retValue_acc ; [L661] retValue_acc = waterLevel [L662] return (retValue_acc); [L558] RET, EXPR getWaterLevel() [L558] tmp = getWaterLevel() [L560] COND TRUE tmp != 2 [L562] CALL, EXPR isPumpRunning() [L880] int retValue_acc ; [L883] retValue_acc = pumpRunning [L884] return (retValue_acc); [L562] RET, EXPR isPumpRunning() [L562] tmp___0 = isPumpRunning() [L564] COND FALSE !(\read(tmp___0)) [L788] RET __utac_acc__Specification5_spec__3() [L749] RET timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2022-07-22 02:39:42,752 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)