./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/minepump_spec4_product49.cil.c --full-output -ea --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 03d7b7b3 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -ea -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i ../sv-benchmarks/c/product-lines/minepump_spec4_product49.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 dcab8ddabad39d2c77c9d9341cfb89acc265e09aeb5bde0419f381c4b7bb75b6 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-03d7b7b [2022-02-21 04:18:01,026 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-21 04:18:01,027 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-21 04:18:01,075 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-02-21 04:18:01,076 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-02-21 04:18:01,078 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-02-21 04:18:01,080 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-02-21 04:18:01,084 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-02-21 04:18:01,085 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-02-21 04:18:01,089 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-02-21 04:18:01,090 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-02-21 04:18:01,091 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-02-21 04:18:01,091 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-21 04:18:01,093 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-21 04:18:01,094 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-21 04:18:01,095 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-21 04:18:01,096 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-21 04:18:01,096 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-21 04:18:01,097 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-21 04:18:01,098 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-21 04:18:01,099 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-21 04:18:01,100 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-21 04:18:01,100 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-21 04:18:01,101 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-21 04:18:01,106 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-02-21 04:18:01,108 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-02-21 04:18:01,108 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-02-21 04:18:01,109 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-02-21 04:18:01,110 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-02-21 04:18:01,110 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-02-21 04:18:01,111 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-02-21 04:18:01,111 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-02-21 04:18:01,112 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-02-21 04:18:01,113 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-02-21 04:18:01,114 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-02-21 04:18:01,115 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-02-21 04:18:01,115 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-02-21 04:18:01,115 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-02-21 04:18:01,116 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-21 04:18:01,116 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-21 04:18:01,117 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-21 04:18:01,118 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2022-02-21 04:18:01,147 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-21 04:18:01,147 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-21 04:18:01,147 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-02-21 04:18:01,147 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-02-21 04:18:01,148 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-02-21 04:18:01,148 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-02-21 04:18:01,148 INFO L138 SettingsManager]: * Use SBE=true [2022-02-21 04:18:01,148 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-02-21 04:18:01,149 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-02-21 04:18:01,149 INFO L138 SettingsManager]: * Use old map elimination=false [2022-02-21 04:18:01,149 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-02-21 04:18:01,149 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-02-21 04:18:01,149 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-02-21 04:18:01,149 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-21 04:18:01,149 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-21 04:18:01,150 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-02-21 04:18:01,150 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-21 04:18:01,150 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-21 04:18:01,150 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-21 04:18:01,150 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-02-21 04:18:01,150 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-02-21 04:18:01,150 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-02-21 04:18:01,150 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-21 04:18:01,151 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-21 04:18:01,151 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-02-21 04:18:01,151 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-21 04:18:01,151 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-02-21 04:18:01,151 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-21 04:18:01,151 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-21 04:18:01,152 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-21 04:18:01,152 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-02-21 04:18:01,152 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-02-21 04:18:01,153 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> dcab8ddabad39d2c77c9d9341cfb89acc265e09aeb5bde0419f381c4b7bb75b6 [2022-02-21 04:18:01,351 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-21 04:18:01,370 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-21 04:18:01,373 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-21 04:18:01,374 INFO L271 PluginConnector]: Initializing CDTParser... [2022-02-21 04:18:01,375 INFO L275 PluginConnector]: CDTParser initialized [2022-02-21 04:18:01,376 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec4_product49.cil.c [2022-02-21 04:18:01,439 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ab1a9049d/768a01087d8e4dbf9b72a34e7462931c/FLAGa89daec24 [2022-02-21 04:18:01,777 INFO L306 CDTParser]: Found 1 translation units. [2022-02-21 04:18:01,778 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec4_product49.cil.c [2022-02-21 04:18:01,785 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ab1a9049d/768a01087d8e4dbf9b72a34e7462931c/FLAGa89daec24 [2022-02-21 04:18:02,176 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ab1a9049d/768a01087d8e4dbf9b72a34e7462931c [2022-02-21 04:18:02,178 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-21 04:18:02,179 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-02-21 04:18:02,180 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-02-21 04:18:02,180 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-02-21 04:18:02,195 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-02-21 04:18:02,196 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.02 04:18:02" (1/1) ... [2022-02-21 04:18:02,197 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@671d068f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:02, skipping insertion in model container [2022-02-21 04:18:02,197 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.02 04:18:02" (1/1) ... [2022-02-21 04:18:02,202 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-02-21 04:18:02,240 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-02-21 04:18:02,366 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_spec4_product49.cil.c[1605,1618] [2022-02-21 04:18:02,482 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-21 04:18:02,501 INFO L203 MainTranslator]: Completed pre-run [2022-02-21 04:18:02,516 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_spec4_product49.cil.c[1605,1618] [2022-02-21 04:18:02,581 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-21 04:18:02,604 INFO L208 MainTranslator]: Completed translation [2022-02-21 04:18:02,605 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:02 WrapperNode [2022-02-21 04:18:02,605 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-02-21 04:18:02,606 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-02-21 04:18:02,606 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-02-21 04:18:02,606 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-02-21 04:18:02,611 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:02" (1/1) ... [2022-02-21 04:18:02,631 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:02" (1/1) ... [2022-02-21 04:18:02,671 INFO L137 Inliner]: procedures = 55, calls = 154, calls flagged for inlining = 51, calls inlined = 77, statements flattened = 599 [2022-02-21 04:18:02,672 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-02-21 04:18:02,672 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-21 04:18:02,672 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-21 04:18:02,672 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-21 04:18:02,679 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:02" (1/1) ... [2022-02-21 04:18:02,679 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:02" (1/1) ... [2022-02-21 04:18:02,682 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:02" (1/1) ... [2022-02-21 04:18:02,682 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:02" (1/1) ... [2022-02-21 04:18:02,702 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:02" (1/1) ... [2022-02-21 04:18:02,714 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:02" (1/1) ... [2022-02-21 04:18:02,715 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:02" (1/1) ... [2022-02-21 04:18:02,718 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-21 04:18:02,718 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-21 04:18:02,718 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-21 04:18:02,719 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-21 04:18:02,719 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:02" (1/1) ... [2022-02-21 04:18:02,738 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-02-21 04:18:02,747 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-21 04:18:02,763 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-02-21 04:18:02,767 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2022-02-21 04:18:02,793 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-02-21 04:18:02,793 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-02-21 04:18:02,793 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-21 04:18:02,793 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-21 04:18:02,848 INFO L234 CfgBuilder]: Building ICFG [2022-02-21 04:18:02,849 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-21 04:18:03,265 INFO L275 CfgBuilder]: Performing block encoding [2022-02-21 04:18:03,276 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-21 04:18:03,277 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-02-21 04:18:03,279 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 04:18:03 BoogieIcfgContainer [2022-02-21 04:18:03,281 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-21 04:18:03,282 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-02-21 04:18:03,282 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-02-21 04:18:03,285 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-02-21 04:18:03,307 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-02-21 04:18:03,307 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 21.02 04:18:02" (1/3) ... [2022-02-21 04:18:03,309 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3eb97c1a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.02 04:18:03, skipping insertion in model container [2022-02-21 04:18:03,309 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-02-21 04:18:03,310 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:02" (2/3) ... [2022-02-21 04:18:03,310 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3eb97c1a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.02 04:18:03, skipping insertion in model container [2022-02-21 04:18:03,310 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-02-21 04:18:03,310 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 04:18:03" (3/3) ... [2022-02-21 04:18:03,311 INFO L388 chiAutomizerObserver]: Analyzing ICFG minepump_spec4_product49.cil.c [2022-02-21 04:18:03,360 INFO L359 BuchiCegarLoop]: Interprodecural is true [2022-02-21 04:18:03,361 INFO L360 BuchiCegarLoop]: Hoare is false [2022-02-21 04:18:03,361 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-02-21 04:18:03,361 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-02-21 04:18:03,361 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-02-21 04:18:03,361 INFO L364 BuchiCegarLoop]: Difference is false [2022-02-21 04:18:03,361 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-02-21 04:18:03,361 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2022-02-21 04:18:03,386 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 162 states, 161 states have (on average 1.3788819875776397) internal successors, (222), 161 states have internal predecessors, (222), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:18:03,451 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 104 [2022-02-21 04:18:03,451 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:18:03,451 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:18:03,455 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:18:03,455 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:18:03,456 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2022-02-21 04:18:03,460 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 162 states, 161 states have (on average 1.3788819875776397) internal successors, (222), 161 states have internal predecessors, (222), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:18:03,479 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 104 [2022-02-21 04:18:03,483 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:18:03,483 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:18:03,484 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:18:03,484 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:18:03,492 INFO L791 eck$LassoCheckResult]: Stem: 144#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(13, 4);call #Ultimate.allocInit(7, 5);call write~init~int(44, 5, 0, 1);call write~init~int(77, 5, 1, 1);call write~init~int(101, 5, 2, 1);call write~init~int(116, 5, 3, 1);call write~init~int(104, 5, 4, 1);call write~init~int(58, 5, 5, 1);call write~init~int(0, 5, 6, 1);call #Ultimate.allocInit(5, 6);call write~init~int(67, 6, 0, 1);call write~init~int(82, 6, 1, 1);call write~init~int(73, 6, 2, 1);call write~init~int(84, 6, 3, 1);call write~init~int(0, 6, 4, 1);call #Ultimate.allocInit(3, 7);call write~init~int(79, 7, 0, 1);call write~init~int(75, 7, 1, 1);call write~init~int(0, 7, 2, 1);call #Ultimate.allocInit(2, 8);call write~init~int(41, 8, 0, 1);call write~init~int(0, 8, 1, 1);call #Ultimate.allocInit(13, 9);call #Ultimate.allocInit(3, 10);call write~init~int(79, 10, 0, 1);call write~init~int(110, 10, 1, 1);call write~init~int(0, 10, 2, 1);call #Ultimate.allocInit(4, 11);call write~init~int(79, 11, 0, 1);call write~init~int(102, 11, 1, 1);call write~init~int(102, 11, 2, 1);call write~init~int(0, 11, 3, 1);call #Ultimate.allocInit(7, 12);call write~init~int(44, 12, 0, 1);call write~init~int(80, 12, 1, 1);call write~init~int(117, 12, 2, 1);call write~init~int(109, 12, 3, 1);call write~init~int(112, 12, 4, 1);call write~init~int(58, 12, 5, 1);call write~init~int(0, 12, 6, 1);call #Ultimate.allocInit(3, 13);call write~init~int(79, 13, 0, 1);call write~init~int(110, 13, 1, 1);call write~init~int(0, 13, 2, 1);call #Ultimate.allocInit(4, 14);call write~init~int(79, 14, 0, 1);call write~init~int(102, 14, 1, 1);call write~init~int(102, 14, 2, 1);call write~init~int(0, 14, 3, 1);call #Ultimate.allocInit(3, 15);call write~init~int(41, 15, 0, 1);call write~init~int(32, 15, 1, 1);call write~init~int(0, 15, 2, 1);call #Ultimate.allocInit(2, 16);call write~init~int(10, 16, 0, 1);call write~init~int(0, 16, 1, 1);call #Ultimate.allocInit(30, 17);call #Ultimate.allocInit(9, 18);call #Ultimate.allocInit(21, 19);call #Ultimate.allocInit(30, 20);call #Ultimate.allocInit(9, 21);call #Ultimate.allocInit(21, 22);call #Ultimate.allocInit(30, 23);call #Ultimate.allocInit(9, 24);call #Ultimate.allocInit(25, 25);call #Ultimate.allocInit(30, 26);call #Ultimate.allocInit(9, 27);call #Ultimate.allocInit(25, 28);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0; 51#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret9#1, main_~retValue_acc~4#1, main_~tmp~0#1;havoc main_~retValue_acc~4#1;havoc main_~tmp~0#1;assume { :begin_inline_select_helpers } true; 31#L560true assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 92#L553true assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~10#1;havoc valid_product_~retValue_acc~10#1;valid_product_~retValue_acc~10#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~10#1; 163#L568true main_#t~ret9#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~0#1 := main_#t~ret9#1;havoc main_#t~ret9#1; 44#L258true assume 0 != main_~tmp~0#1;assume { :begin_inline_setup } true; 94#L231true assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet23#1, test_#t~nondet24#1, test_#t~nondet25#1, test_#t~nondet26#1, test_~splverifierCounter~0#1, test_~tmp~5#1, test_~tmp___0~2#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~5#1;havoc test_~tmp___0~2#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 7#L483-2true [2022-02-21 04:18:03,498 INFO L793 eck$LassoCheckResult]: Loop: 7#L483-2true assume !false; 150#L484true assume test_~splverifierCounter~0#1 < 4; 113#L485true test_~tmp~5#1 := test_#t~nondet23#1;havoc test_#t~nondet23#1; 18#L493true assume !(0 != test_~tmp~5#1); 72#L493-2true test_~tmp___0~2#1 := test_#t~nondet24#1;havoc test_#t~nondet24#1; 77#L503true assume !(0 != test_~tmp___0~2#1); 25#L503-2true test_~tmp___2~0#1 := test_#t~nondet25#1;havoc test_#t~nondet25#1; 120#L513true assume 0 != test_~tmp___2~0#1; 70#L519-2true assume { :begin_inline_timeShift } true; 118#L283true assume !(0 != ~pumpRunning~0); 20#L283-2true assume !(0 != ~systemActive~0); 142#L290-1true assume { :begin_inline___utac_acc__Specification4_spec__1 } true;havoc __utac_acc__Specification4_spec__1_#t~ret28#1, __utac_acc__Specification4_spec__1_#t~ret29#1, __utac_acc__Specification4_spec__1_~tmp~6#1, __utac_acc__Specification4_spec__1_~tmp___0~3#1;havoc __utac_acc__Specification4_spec__1_~tmp~6#1;havoc __utac_acc__Specification4_spec__1_~tmp___0~3#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~1#1;havoc getWaterLevel_~retValue_acc~1#1;getWaterLevel_~retValue_acc~1#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~1#1; 125#L142true __utac_acc__Specification4_spec__1_#t~ret28#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification4_spec__1_~tmp~6#1 := __utac_acc__Specification4_spec__1_#t~ret28#1;havoc __utac_acc__Specification4_spec__1_#t~ret28#1; 161#L581true assume !(0 == __utac_acc__Specification4_spec__1_~tmp~6#1); 50#L581-1true assume { :end_inline___utac_acc__Specification4_spec__1 } true; 78#L300true assume { :end_inline_timeShift } true; 7#L483-2true [2022-02-21 04:18:03,505 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:18:03,505 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 1 times [2022-02-21 04:18:03,512 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:18:03,513 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1464122938] [2022-02-21 04:18:03,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:18:03,514 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:18:03,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:03,658 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:18:03,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:03,698 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:18:03,703 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:18:03,704 INFO L85 PathProgramCache]: Analyzing trace with hash 1182788836, now seen corresponding path program 1 times [2022-02-21 04:18:03,704 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:18:03,705 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1755540237] [2022-02-21 04:18:03,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:18:03,705 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:18:03,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:03,725 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:18:03,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:03,736 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:18:03,739 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:18:03,741 INFO L85 PathProgramCache]: Analyzing trace with hash -1756759384, now seen corresponding path program 1 times [2022-02-21 04:18:03,742 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:18:03,742 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2046217101] [2022-02-21 04:18:03,742 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:18:03,742 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:18:03,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-21 04:18:03,895 INFO L290 TraceCheckUtils]: 0: Hoare triple {170#true} assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(13, 4);call #Ultimate.allocInit(7, 5);call write~init~int(44, 5, 0, 1);call write~init~int(77, 5, 1, 1);call write~init~int(101, 5, 2, 1);call write~init~int(116, 5, 3, 1);call write~init~int(104, 5, 4, 1);call write~init~int(58, 5, 5, 1);call write~init~int(0, 5, 6, 1);call #Ultimate.allocInit(5, 6);call write~init~int(67, 6, 0, 1);call write~init~int(82, 6, 1, 1);call write~init~int(73, 6, 2, 1);call write~init~int(84, 6, 3, 1);call write~init~int(0, 6, 4, 1);call #Ultimate.allocInit(3, 7);call write~init~int(79, 7, 0, 1);call write~init~int(75, 7, 1, 1);call write~init~int(0, 7, 2, 1);call #Ultimate.allocInit(2, 8);call write~init~int(41, 8, 0, 1);call write~init~int(0, 8, 1, 1);call #Ultimate.allocInit(13, 9);call #Ultimate.allocInit(3, 10);call write~init~int(79, 10, 0, 1);call write~init~int(110, 10, 1, 1);call write~init~int(0, 10, 2, 1);call #Ultimate.allocInit(4, 11);call write~init~int(79, 11, 0, 1);call write~init~int(102, 11, 1, 1);call write~init~int(102, 11, 2, 1);call write~init~int(0, 11, 3, 1);call #Ultimate.allocInit(7, 12);call write~init~int(44, 12, 0, 1);call write~init~int(80, 12, 1, 1);call write~init~int(117, 12, 2, 1);call write~init~int(109, 12, 3, 1);call write~init~int(112, 12, 4, 1);call write~init~int(58, 12, 5, 1);call write~init~int(0, 12, 6, 1);call #Ultimate.allocInit(3, 13);call write~init~int(79, 13, 0, 1);call write~init~int(110, 13, 1, 1);call write~init~int(0, 13, 2, 1);call #Ultimate.allocInit(4, 14);call write~init~int(79, 14, 0, 1);call write~init~int(102, 14, 1, 1);call write~init~int(102, 14, 2, 1);call write~init~int(0, 14, 3, 1);call #Ultimate.allocInit(3, 15);call write~init~int(41, 15, 0, 1);call write~init~int(32, 15, 1, 1);call write~init~int(0, 15, 2, 1);call #Ultimate.allocInit(2, 16);call write~init~int(10, 16, 0, 1);call write~init~int(0, 16, 1, 1);call #Ultimate.allocInit(30, 17);call #Ultimate.allocInit(9, 18);call #Ultimate.allocInit(21, 19);call #Ultimate.allocInit(30, 20);call #Ultimate.allocInit(9, 21);call #Ultimate.allocInit(21, 22);call #Ultimate.allocInit(30, 23);call #Ultimate.allocInit(9, 24);call #Ultimate.allocInit(25, 25);call #Ultimate.allocInit(30, 26);call #Ultimate.allocInit(9, 27);call #Ultimate.allocInit(25, 28);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0; {172#(= 1 ~systemActive~0)} is VALID [2022-02-21 04:18:03,896 INFO L290 TraceCheckUtils]: 1: Hoare triple {172#(= 1 ~systemActive~0)} assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret9#1, main_~retValue_acc~4#1, main_~tmp~0#1;havoc main_~retValue_acc~4#1;havoc main_~tmp~0#1;assume { :begin_inline_select_helpers } true; {172#(= 1 ~systemActive~0)} is VALID [2022-02-21 04:18:03,896 INFO L290 TraceCheckUtils]: 2: Hoare triple {172#(= 1 ~systemActive~0)} assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; {172#(= 1 ~systemActive~0)} is VALID [2022-02-21 04:18:03,897 INFO L290 TraceCheckUtils]: 3: Hoare triple {172#(= 1 ~systemActive~0)} assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~10#1;havoc valid_product_~retValue_acc~10#1;valid_product_~retValue_acc~10#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~10#1; {173#(= |ULTIMATE.start_valid_product_#res#1| ~systemActive~0)} is VALID [2022-02-21 04:18:03,897 INFO L290 TraceCheckUtils]: 4: Hoare triple {173#(= |ULTIMATE.start_valid_product_#res#1| ~systemActive~0)} main_#t~ret9#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~0#1 := main_#t~ret9#1;havoc main_#t~ret9#1; {174#(= |ULTIMATE.start_main_~tmp~0#1| ~systemActive~0)} is VALID [2022-02-21 04:18:03,898 INFO L290 TraceCheckUtils]: 5: Hoare triple {174#(= |ULTIMATE.start_main_~tmp~0#1| ~systemActive~0)} assume 0 != main_~tmp~0#1;assume { :begin_inline_setup } true; {175#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:18:03,898 INFO L290 TraceCheckUtils]: 6: Hoare triple {175#(not (= 0 ~systemActive~0))} assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet23#1, test_#t~nondet24#1, test_#t~nondet25#1, test_#t~nondet26#1, test_~splverifierCounter~0#1, test_~tmp~5#1, test_~tmp___0~2#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~5#1;havoc test_~tmp___0~2#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; {175#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:18:03,899 INFO L290 TraceCheckUtils]: 7: Hoare triple {175#(not (= 0 ~systemActive~0))} assume !false; {175#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:18:03,899 INFO L290 TraceCheckUtils]: 8: Hoare triple {175#(not (= 0 ~systemActive~0))} assume test_~splverifierCounter~0#1 < 4; {175#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:18:03,899 INFO L290 TraceCheckUtils]: 9: Hoare triple {175#(not (= 0 ~systemActive~0))} test_~tmp~5#1 := test_#t~nondet23#1;havoc test_#t~nondet23#1; {175#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:18:03,900 INFO L290 TraceCheckUtils]: 10: Hoare triple {175#(not (= 0 ~systemActive~0))} assume !(0 != test_~tmp~5#1); {175#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:18:03,901 INFO L290 TraceCheckUtils]: 11: Hoare triple {175#(not (= 0 ~systemActive~0))} test_~tmp___0~2#1 := test_#t~nondet24#1;havoc test_#t~nondet24#1; {175#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:18:03,901 INFO L290 TraceCheckUtils]: 12: Hoare triple {175#(not (= 0 ~systemActive~0))} assume !(0 != test_~tmp___0~2#1); {175#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:18:03,902 INFO L290 TraceCheckUtils]: 13: Hoare triple {175#(not (= 0 ~systemActive~0))} test_~tmp___2~0#1 := test_#t~nondet25#1;havoc test_#t~nondet25#1; {175#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:18:03,902 INFO L290 TraceCheckUtils]: 14: Hoare triple {175#(not (= 0 ~systemActive~0))} assume 0 != test_~tmp___2~0#1; {175#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:18:03,903 INFO L290 TraceCheckUtils]: 15: Hoare triple {175#(not (= 0 ~systemActive~0))} assume { :begin_inline_timeShift } true; {175#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:18:03,903 INFO L290 TraceCheckUtils]: 16: Hoare triple {175#(not (= 0 ~systemActive~0))} assume !(0 != ~pumpRunning~0); {175#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:18:03,904 INFO L290 TraceCheckUtils]: 17: Hoare triple {175#(not (= 0 ~systemActive~0))} assume !(0 != ~systemActive~0); {171#false} is VALID [2022-02-21 04:18:03,904 INFO L290 TraceCheckUtils]: 18: Hoare triple {171#false} assume { :begin_inline___utac_acc__Specification4_spec__1 } true;havoc __utac_acc__Specification4_spec__1_#t~ret28#1, __utac_acc__Specification4_spec__1_#t~ret29#1, __utac_acc__Specification4_spec__1_~tmp~6#1, __utac_acc__Specification4_spec__1_~tmp___0~3#1;havoc __utac_acc__Specification4_spec__1_~tmp~6#1;havoc __utac_acc__Specification4_spec__1_~tmp___0~3#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~1#1;havoc getWaterLevel_~retValue_acc~1#1;getWaterLevel_~retValue_acc~1#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~1#1; {171#false} is VALID [2022-02-21 04:18:03,904 INFO L290 TraceCheckUtils]: 19: Hoare triple {171#false} __utac_acc__Specification4_spec__1_#t~ret28#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification4_spec__1_~tmp~6#1 := __utac_acc__Specification4_spec__1_#t~ret28#1;havoc __utac_acc__Specification4_spec__1_#t~ret28#1; {171#false} is VALID [2022-02-21 04:18:03,905 INFO L290 TraceCheckUtils]: 20: Hoare triple {171#false} assume !(0 == __utac_acc__Specification4_spec__1_~tmp~6#1); {171#false} is VALID [2022-02-21 04:18:03,905 INFO L290 TraceCheckUtils]: 21: Hoare triple {171#false} assume { :end_inline___utac_acc__Specification4_spec__1 } true; {171#false} is VALID [2022-02-21 04:18:03,905 INFO L290 TraceCheckUtils]: 22: Hoare triple {171#false} assume { :end_inline_timeShift } true; {171#false} is VALID [2022-02-21 04:18:03,906 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-21 04:18:03,907 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-21 04:18:03,907 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2046217101] [2022-02-21 04:18:03,908 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2046217101] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-21 04:18:03,908 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-21 04:18:03,908 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-21 04:18:03,909 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2032870810] [2022-02-21 04:18:03,910 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-21 04:18:04,008 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-21 04:18:04,034 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-02-21 04:18:04,035 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-02-21 04:18:04,037 INFO L87 Difference]: Start difference. First operand has 162 states, 161 states have (on average 1.3788819875776397) internal successors, (222), 161 states have internal predecessors, (222), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 6 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 5 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:18:04,352 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:18:04,352 INFO L93 Difference]: Finished difference Result 159 states and 208 transitions. [2022-02-21 04:18:04,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-21 04:18:04,353 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with has 6 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 5 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:18:04,377 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 23 edges. 23 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-02-21 04:18:04,386 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 159 states and 208 transitions. [2022-02-21 04:18:04,399 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 100 [2022-02-21 04:18:04,406 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 159 states to 149 states and 198 transitions. [2022-02-21 04:18:04,407 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 149 [2022-02-21 04:18:04,408 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 149 [2022-02-21 04:18:04,410 INFO L73 IsDeterministic]: Start isDeterministic. Operand 149 states and 198 transitions. [2022-02-21 04:18:04,411 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-02-21 04:18:04,411 INFO L681 BuchiCegarLoop]: Abstraction has 149 states and 198 transitions. [2022-02-21 04:18:04,424 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 149 states and 198 transitions. [2022-02-21 04:18:04,440 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 149 to 149. [2022-02-21 04:18:04,440 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-02-21 04:18:04,445 INFO L82 GeneralOperation]: Start isEquivalent. First operand 149 states and 198 transitions. Second operand has 149 states, 149 states have (on average 1.3288590604026846) internal successors, (198), 148 states have internal predecessors, (198), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:18:04,446 INFO L74 IsIncluded]: Start isIncluded. First operand 149 states and 198 transitions. Second operand has 149 states, 149 states have (on average 1.3288590604026846) internal successors, (198), 148 states have internal predecessors, (198), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:18:04,447 INFO L87 Difference]: Start difference. First operand 149 states and 198 transitions. Second operand has 149 states, 149 states have (on average 1.3288590604026846) internal successors, (198), 148 states have internal predecessors, (198), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:18:04,455 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:18:04,455 INFO L93 Difference]: Finished difference Result 149 states and 198 transitions. [2022-02-21 04:18:04,456 INFO L276 IsEmpty]: Start isEmpty. Operand 149 states and 198 transitions. [2022-02-21 04:18:04,457 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:18:04,457 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:18:04,457 INFO L74 IsIncluded]: Start isIncluded. First operand has 149 states, 149 states have (on average 1.3288590604026846) internal successors, (198), 148 states have internal predecessors, (198), 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 149 states and 198 transitions. [2022-02-21 04:18:04,458 INFO L87 Difference]: Start difference. First operand has 149 states, 149 states have (on average 1.3288590604026846) internal successors, (198), 148 states have internal predecessors, (198), 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 149 states and 198 transitions. [2022-02-21 04:18:04,462 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:18:04,462 INFO L93 Difference]: Finished difference Result 149 states and 198 transitions. [2022-02-21 04:18:04,462 INFO L276 IsEmpty]: Start isEmpty. Operand 149 states and 198 transitions. [2022-02-21 04:18:04,463 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:18:04,463 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:18:04,463 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-02-21 04:18:04,463 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-02-21 04:18:04,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 149 states, 149 states have (on average 1.3288590604026846) internal successors, (198), 148 states have internal predecessors, (198), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:18:04,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 149 states to 149 states and 198 transitions. [2022-02-21 04:18:04,468 INFO L704 BuchiCegarLoop]: Abstraction has 149 states and 198 transitions. [2022-02-21 04:18:04,468 INFO L587 BuchiCegarLoop]: Abstraction has 149 states and 198 transitions. [2022-02-21 04:18:04,468 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2022-02-21 04:18:04,468 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 149 states and 198 transitions. [2022-02-21 04:18:04,469 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 100 [2022-02-21 04:18:04,469 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:18:04,469 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:18:04,470 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:18:04,470 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:18:04,470 INFO L791 eck$LassoCheckResult]: Stem: 485#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(13, 4);call #Ultimate.allocInit(7, 5);call write~init~int(44, 5, 0, 1);call write~init~int(77, 5, 1, 1);call write~init~int(101, 5, 2, 1);call write~init~int(116, 5, 3, 1);call write~init~int(104, 5, 4, 1);call write~init~int(58, 5, 5, 1);call write~init~int(0, 5, 6, 1);call #Ultimate.allocInit(5, 6);call write~init~int(67, 6, 0, 1);call write~init~int(82, 6, 1, 1);call write~init~int(73, 6, 2, 1);call write~init~int(84, 6, 3, 1);call write~init~int(0, 6, 4, 1);call #Ultimate.allocInit(3, 7);call write~init~int(79, 7, 0, 1);call write~init~int(75, 7, 1, 1);call write~init~int(0, 7, 2, 1);call #Ultimate.allocInit(2, 8);call write~init~int(41, 8, 0, 1);call write~init~int(0, 8, 1, 1);call #Ultimate.allocInit(13, 9);call #Ultimate.allocInit(3, 10);call write~init~int(79, 10, 0, 1);call write~init~int(110, 10, 1, 1);call write~init~int(0, 10, 2, 1);call #Ultimate.allocInit(4, 11);call write~init~int(79, 11, 0, 1);call write~init~int(102, 11, 1, 1);call write~init~int(102, 11, 2, 1);call write~init~int(0, 11, 3, 1);call #Ultimate.allocInit(7, 12);call write~init~int(44, 12, 0, 1);call write~init~int(80, 12, 1, 1);call write~init~int(117, 12, 2, 1);call write~init~int(109, 12, 3, 1);call write~init~int(112, 12, 4, 1);call write~init~int(58, 12, 5, 1);call write~init~int(0, 12, 6, 1);call #Ultimate.allocInit(3, 13);call write~init~int(79, 13, 0, 1);call write~init~int(110, 13, 1, 1);call write~init~int(0, 13, 2, 1);call #Ultimate.allocInit(4, 14);call write~init~int(79, 14, 0, 1);call write~init~int(102, 14, 1, 1);call write~init~int(102, 14, 2, 1);call write~init~int(0, 14, 3, 1);call #Ultimate.allocInit(3, 15);call write~init~int(41, 15, 0, 1);call write~init~int(32, 15, 1, 1);call write~init~int(0, 15, 2, 1);call #Ultimate.allocInit(2, 16);call write~init~int(10, 16, 0, 1);call write~init~int(0, 16, 1, 1);call #Ultimate.allocInit(30, 17);call #Ultimate.allocInit(9, 18);call #Ultimate.allocInit(21, 19);call #Ultimate.allocInit(30, 20);call #Ultimate.allocInit(9, 21);call #Ultimate.allocInit(21, 22);call #Ultimate.allocInit(30, 23);call #Ultimate.allocInit(9, 24);call #Ultimate.allocInit(25, 25);call #Ultimate.allocInit(30, 26);call #Ultimate.allocInit(9, 27);call #Ultimate.allocInit(25, 28);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0; 417#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret9#1, main_~retValue_acc~4#1, main_~tmp~0#1;havoc main_~retValue_acc~4#1;havoc main_~tmp~0#1;assume { :begin_inline_select_helpers } true; 390#L560 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 391#L553 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~10#1;havoc valid_product_~retValue_acc~10#1;valid_product_~retValue_acc~10#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~10#1; 459#L568 main_#t~ret9#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~0#1 := main_#t~ret9#1;havoc main_#t~ret9#1; 407#L258 assume 0 != main_~tmp~0#1;assume { :begin_inline_setup } true; 408#L231 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet23#1, test_#t~nondet24#1, test_#t~nondet25#1, test_#t~nondet26#1, test_~splverifierCounter~0#1, test_~tmp~5#1, test_~tmp___0~2#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~5#1;havoc test_~tmp___0~2#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 345#L483-2 [2022-02-21 04:18:04,471 INFO L793 eck$LassoCheckResult]: Loop: 345#L483-2 assume !false; 346#L484 assume test_~splverifierCounter~0#1 < 4; 474#L485 test_~tmp~5#1 := test_#t~nondet23#1;havoc test_#t~nondet23#1; 369#L493 assume !(0 != test_~tmp~5#1); 344#L493-2 test_~tmp___0~2#1 := test_#t~nondet24#1;havoc test_#t~nondet24#1; 447#L503 assume !(0 != test_~tmp___0~2#1); 381#L503-2 test_~tmp___2~0#1 := test_#t~nondet25#1;havoc test_#t~nondet25#1; 382#L513 assume 0 != test_~tmp___2~0#1; 444#L519-2 assume { :begin_inline_timeShift } true; 445#L283 assume !(0 != ~pumpRunning~0); 373#L283-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret11#1, processEnvironment_~tmp~2#1;havoc processEnvironment_~tmp~2#1; 374#L341 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret10#1, processEnvironment__wrappee__highWaterSensor_~tmp~1#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~1#1; 462#L315-2 assume !(0 == ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true; 441#L307-3 assume { :end_inline_processEnvironment__wrappee__base } true; 376#L315-3 assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 360#L341-1 assume { :end_inline_processEnvironment } true; 484#L290-1 assume { :begin_inline___utac_acc__Specification4_spec__1 } true;havoc __utac_acc__Specification4_spec__1_#t~ret28#1, __utac_acc__Specification4_spec__1_#t~ret29#1, __utac_acc__Specification4_spec__1_~tmp~6#1, __utac_acc__Specification4_spec__1_~tmp___0~3#1;havoc __utac_acc__Specification4_spec__1_~tmp~6#1;havoc __utac_acc__Specification4_spec__1_~tmp___0~3#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~1#1;havoc getWaterLevel_~retValue_acc~1#1;getWaterLevel_~retValue_acc~1#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~1#1; 478#L142 __utac_acc__Specification4_spec__1_#t~ret28#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification4_spec__1_~tmp~6#1 := __utac_acc__Specification4_spec__1_#t~ret28#1;havoc __utac_acc__Specification4_spec__1_#t~ret28#1; 479#L581 assume !(0 == __utac_acc__Specification4_spec__1_~tmp~6#1); 415#L581-1 assume { :end_inline___utac_acc__Specification4_spec__1 } true; 416#L300 assume { :end_inline_timeShift } true; 345#L483-2 [2022-02-21 04:18:04,471 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:18:04,471 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 2 times [2022-02-21 04:18:04,471 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:18:04,472 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [571191379] [2022-02-21 04:18:04,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:18:04,472 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:18:04,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:04,482 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:18:04,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:04,494 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:18:04,495 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:18:04,495 INFO L85 PathProgramCache]: Analyzing trace with hash 1675915203, now seen corresponding path program 1 times [2022-02-21 04:18:04,495 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:18:04,495 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [149415461] [2022-02-21 04:18:04,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:18:04,495 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:18:04,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-21 04:18:04,524 INFO L290 TraceCheckUtils]: 0: Hoare triple {791#true} assume !false; {791#true} is VALID [2022-02-21 04:18:04,525 INFO L290 TraceCheckUtils]: 1: Hoare triple {791#true} assume test_~splverifierCounter~0#1 < 4; {791#true} is VALID [2022-02-21 04:18:04,525 INFO L290 TraceCheckUtils]: 2: Hoare triple {791#true} test_~tmp~5#1 := test_#t~nondet23#1;havoc test_#t~nondet23#1; {791#true} is VALID [2022-02-21 04:18:04,525 INFO L290 TraceCheckUtils]: 3: Hoare triple {791#true} assume !(0 != test_~tmp~5#1); {791#true} is VALID [2022-02-21 04:18:04,525 INFO L290 TraceCheckUtils]: 4: Hoare triple {791#true} test_~tmp___0~2#1 := test_#t~nondet24#1;havoc test_#t~nondet24#1; {791#true} is VALID [2022-02-21 04:18:04,526 INFO L290 TraceCheckUtils]: 5: Hoare triple {791#true} assume !(0 != test_~tmp___0~2#1); {791#true} is VALID [2022-02-21 04:18:04,527 INFO L290 TraceCheckUtils]: 6: Hoare triple {791#true} test_~tmp___2~0#1 := test_#t~nondet25#1;havoc test_#t~nondet25#1; {791#true} is VALID [2022-02-21 04:18:04,527 INFO L290 TraceCheckUtils]: 7: Hoare triple {791#true} assume 0 != test_~tmp___2~0#1; {791#true} is VALID [2022-02-21 04:18:04,527 INFO L290 TraceCheckUtils]: 8: Hoare triple {791#true} assume { :begin_inline_timeShift } true; {791#true} is VALID [2022-02-21 04:18:04,528 INFO L290 TraceCheckUtils]: 9: Hoare triple {791#true} assume !(0 != ~pumpRunning~0); {793#(= ~pumpRunning~0 0)} is VALID [2022-02-21 04:18:04,529 INFO L290 TraceCheckUtils]: 10: Hoare triple {793#(= ~pumpRunning~0 0)} assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret11#1, processEnvironment_~tmp~2#1;havoc processEnvironment_~tmp~2#1; {793#(= ~pumpRunning~0 0)} is VALID [2022-02-21 04:18:04,529 INFO L290 TraceCheckUtils]: 11: Hoare triple {793#(= ~pumpRunning~0 0)} assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret10#1, processEnvironment__wrappee__highWaterSensor_~tmp~1#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~1#1; {793#(= ~pumpRunning~0 0)} is VALID [2022-02-21 04:18:04,529 INFO L290 TraceCheckUtils]: 12: Hoare triple {793#(= ~pumpRunning~0 0)} assume !(0 == ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true; {792#false} is VALID [2022-02-21 04:18:04,530 INFO L290 TraceCheckUtils]: 13: Hoare triple {792#false} assume { :end_inline_processEnvironment__wrappee__base } true; {792#false} is VALID [2022-02-21 04:18:04,530 INFO L290 TraceCheckUtils]: 14: Hoare triple {792#false} assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; {792#false} is VALID [2022-02-21 04:18:04,530 INFO L290 TraceCheckUtils]: 15: Hoare triple {792#false} assume { :end_inline_processEnvironment } true; {792#false} is VALID [2022-02-21 04:18:04,531 INFO L290 TraceCheckUtils]: 16: Hoare triple {792#false} assume { :begin_inline___utac_acc__Specification4_spec__1 } true;havoc __utac_acc__Specification4_spec__1_#t~ret28#1, __utac_acc__Specification4_spec__1_#t~ret29#1, __utac_acc__Specification4_spec__1_~tmp~6#1, __utac_acc__Specification4_spec__1_~tmp___0~3#1;havoc __utac_acc__Specification4_spec__1_~tmp~6#1;havoc __utac_acc__Specification4_spec__1_~tmp___0~3#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~1#1;havoc getWaterLevel_~retValue_acc~1#1;getWaterLevel_~retValue_acc~1#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~1#1; {792#false} is VALID [2022-02-21 04:18:04,531 INFO L290 TraceCheckUtils]: 17: Hoare triple {792#false} __utac_acc__Specification4_spec__1_#t~ret28#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification4_spec__1_~tmp~6#1 := __utac_acc__Specification4_spec__1_#t~ret28#1;havoc __utac_acc__Specification4_spec__1_#t~ret28#1; {792#false} is VALID [2022-02-21 04:18:04,531 INFO L290 TraceCheckUtils]: 18: Hoare triple {792#false} assume !(0 == __utac_acc__Specification4_spec__1_~tmp~6#1); {792#false} is VALID [2022-02-21 04:18:04,531 INFO L290 TraceCheckUtils]: 19: Hoare triple {792#false} assume { :end_inline___utac_acc__Specification4_spec__1 } true; {792#false} is VALID [2022-02-21 04:18:04,531 INFO L290 TraceCheckUtils]: 20: Hoare triple {792#false} assume { :end_inline_timeShift } true; {792#false} is VALID [2022-02-21 04:18:04,532 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-21 04:18:04,532 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-21 04:18:04,532 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [149415461] [2022-02-21 04:18:04,532 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [149415461] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-21 04:18:04,532 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-21 04:18:04,542 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-02-21 04:18:04,542 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1795814356] [2022-02-21 04:18:04,542 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-21 04:18:04,542 INFO L808 eck$LassoCheckResult]: loop already infeasible [2022-02-21 04:18:04,543 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-21 04:18:04,544 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-02-21 04:18:04,544 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-21 04:18:04,544 INFO L87 Difference]: Start difference. First operand 149 states and 198 transitions. cyclomatic complexity: 51 Second operand has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:18:04,755 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:18:04,755 INFO L93 Difference]: Finished difference Result 204 states and 260 transitions. [2022-02-21 04:18:04,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-21 04:18:04,755 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:18:04,771 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 21 edges. 21 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-02-21 04:18:04,772 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 204 states and 260 transitions. [2022-02-21 04:18:04,779 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 142 [2022-02-21 04:18:04,786 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 204 states to 204 states and 260 transitions. [2022-02-21 04:18:04,786 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 204 [2022-02-21 04:18:04,787 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 204 [2022-02-21 04:18:04,787 INFO L73 IsDeterministic]: Start isDeterministic. Operand 204 states and 260 transitions. [2022-02-21 04:18:04,789 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-02-21 04:18:04,789 INFO L681 BuchiCegarLoop]: Abstraction has 204 states and 260 transitions. [2022-02-21 04:18:04,790 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 204 states and 260 transitions. [2022-02-21 04:18:04,795 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 204 to 204. [2022-02-21 04:18:04,795 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-02-21 04:18:04,795 INFO L82 GeneralOperation]: Start isEquivalent. First operand 204 states and 260 transitions. Second operand has 204 states, 204 states have (on average 1.2745098039215685) internal successors, (260), 203 states have internal predecessors, (260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:18:04,796 INFO L74 IsIncluded]: Start isIncluded. First operand 204 states and 260 transitions. Second operand has 204 states, 204 states have (on average 1.2745098039215685) internal successors, (260), 203 states have internal predecessors, (260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:18:04,796 INFO L87 Difference]: Start difference. First operand 204 states and 260 transitions. Second operand has 204 states, 204 states have (on average 1.2745098039215685) internal successors, (260), 203 states have internal predecessors, (260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:18:04,800 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:18:04,800 INFO L93 Difference]: Finished difference Result 204 states and 260 transitions. [2022-02-21 04:18:04,800 INFO L276 IsEmpty]: Start isEmpty. Operand 204 states and 260 transitions. [2022-02-21 04:18:04,801 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:18:04,801 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:18:04,802 INFO L74 IsIncluded]: Start isIncluded. First operand has 204 states, 204 states have (on average 1.2745098039215685) internal successors, (260), 203 states have internal predecessors, (260), 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 204 states and 260 transitions. [2022-02-21 04:18:04,802 INFO L87 Difference]: Start difference. First operand has 204 states, 204 states have (on average 1.2745098039215685) internal successors, (260), 203 states have internal predecessors, (260), 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 204 states and 260 transitions. [2022-02-21 04:18:04,806 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:18:04,806 INFO L93 Difference]: Finished difference Result 204 states and 260 transitions. [2022-02-21 04:18:04,806 INFO L276 IsEmpty]: Start isEmpty. Operand 204 states and 260 transitions. [2022-02-21 04:18:04,807 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:18:04,807 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:18:04,807 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-02-21 04:18:04,807 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-02-21 04:18:04,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 204 states, 204 states have (on average 1.2745098039215685) internal successors, (260), 203 states have internal predecessors, (260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:18:04,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 204 states to 204 states and 260 transitions. [2022-02-21 04:18:04,811 INFO L704 BuchiCegarLoop]: Abstraction has 204 states and 260 transitions. [2022-02-21 04:18:04,811 INFO L587 BuchiCegarLoop]: Abstraction has 204 states and 260 transitions. [2022-02-21 04:18:04,812 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2022-02-21 04:18:04,812 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 204 states and 260 transitions. [2022-02-21 04:18:04,813 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 142 [2022-02-21 04:18:04,813 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:18:04,813 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:18:04,813 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:18:04,813 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:18:04,814 INFO L791 eck$LassoCheckResult]: Stem: 1150#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(13, 4);call #Ultimate.allocInit(7, 5);call write~init~int(44, 5, 0, 1);call write~init~int(77, 5, 1, 1);call write~init~int(101, 5, 2, 1);call write~init~int(116, 5, 3, 1);call write~init~int(104, 5, 4, 1);call write~init~int(58, 5, 5, 1);call write~init~int(0, 5, 6, 1);call #Ultimate.allocInit(5, 6);call write~init~int(67, 6, 0, 1);call write~init~int(82, 6, 1, 1);call write~init~int(73, 6, 2, 1);call write~init~int(84, 6, 3, 1);call write~init~int(0, 6, 4, 1);call #Ultimate.allocInit(3, 7);call write~init~int(79, 7, 0, 1);call write~init~int(75, 7, 1, 1);call write~init~int(0, 7, 2, 1);call #Ultimate.allocInit(2, 8);call write~init~int(41, 8, 0, 1);call write~init~int(0, 8, 1, 1);call #Ultimate.allocInit(13, 9);call #Ultimate.allocInit(3, 10);call write~init~int(79, 10, 0, 1);call write~init~int(110, 10, 1, 1);call write~init~int(0, 10, 2, 1);call #Ultimate.allocInit(4, 11);call write~init~int(79, 11, 0, 1);call write~init~int(102, 11, 1, 1);call write~init~int(102, 11, 2, 1);call write~init~int(0, 11, 3, 1);call #Ultimate.allocInit(7, 12);call write~init~int(44, 12, 0, 1);call write~init~int(80, 12, 1, 1);call write~init~int(117, 12, 2, 1);call write~init~int(109, 12, 3, 1);call write~init~int(112, 12, 4, 1);call write~init~int(58, 12, 5, 1);call write~init~int(0, 12, 6, 1);call #Ultimate.allocInit(3, 13);call write~init~int(79, 13, 0, 1);call write~init~int(110, 13, 1, 1);call write~init~int(0, 13, 2, 1);call #Ultimate.allocInit(4, 14);call write~init~int(79, 14, 0, 1);call write~init~int(102, 14, 1, 1);call write~init~int(102, 14, 2, 1);call write~init~int(0, 14, 3, 1);call #Ultimate.allocInit(3, 15);call write~init~int(41, 15, 0, 1);call write~init~int(32, 15, 1, 1);call write~init~int(0, 15, 2, 1);call #Ultimate.allocInit(2, 16);call write~init~int(10, 16, 0, 1);call write~init~int(0, 16, 1, 1);call #Ultimate.allocInit(30, 17);call #Ultimate.allocInit(9, 18);call #Ultimate.allocInit(21, 19);call #Ultimate.allocInit(30, 20);call #Ultimate.allocInit(9, 21);call #Ultimate.allocInit(21, 22);call #Ultimate.allocInit(30, 23);call #Ultimate.allocInit(9, 24);call #Ultimate.allocInit(25, 25);call #Ultimate.allocInit(30, 26);call #Ultimate.allocInit(9, 27);call #Ultimate.allocInit(25, 28);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0; 1079#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret9#1, main_~retValue_acc~4#1, main_~tmp~0#1;havoc main_~retValue_acc~4#1;havoc main_~tmp~0#1;assume { :begin_inline_select_helpers } true; 1050#L560 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 1051#L553 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~10#1;havoc valid_product_~retValue_acc~10#1;valid_product_~retValue_acc~10#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~10#1; 1122#L568 main_#t~ret9#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~0#1 := main_#t~ret9#1;havoc main_#t~ret9#1; 1067#L258 assume 0 != main_~tmp~0#1;assume { :begin_inline_setup } true; 1068#L231 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet23#1, test_#t~nondet24#1, test_#t~nondet25#1, test_#t~nondet26#1, test_~splverifierCounter~0#1, test_~tmp~5#1, test_~tmp___0~2#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~5#1;havoc test_~tmp___0~2#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 1004#L483-2 [2022-02-21 04:18:04,814 INFO L793 eck$LassoCheckResult]: Loop: 1004#L483-2 assume !false; 1005#L484 assume test_~splverifierCounter~0#1 < 4; 1136#L485 test_~tmp~5#1 := test_#t~nondet23#1;havoc test_#t~nondet23#1; 1026#L493 assume !(0 != test_~tmp~5#1); 1003#L493-2 test_~tmp___0~2#1 := test_#t~nondet24#1;havoc test_#t~nondet24#1; 1108#L503 assume !(0 != test_~tmp___0~2#1); 1039#L503-2 test_~tmp___2~0#1 := test_#t~nondet25#1;havoc test_#t~nondet25#1; 1040#L513 assume 0 != test_~tmp___2~0#1; 1105#L519-2 assume { :begin_inline_timeShift } true; 1106#L283 assume !(0 != ~pumpRunning~0); 1028#L283-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret11#1, processEnvironment_~tmp~2#1;havoc processEnvironment_~tmp~2#1; 1029#L341 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret10#1, processEnvironment__wrappee__highWaterSensor_~tmp~1#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~1#1; 1124#L315-2 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret21#1, isHighWaterLevel_~retValue_acc~7#1, isHighWaterLevel_~tmp~3#1, isHighWaterLevel_~tmp___0~0#1;havoc isHighWaterLevel_~retValue_acc~7#1;havoc isHighWaterLevel_~tmp~3#1;havoc isHighWaterLevel_~tmp___0~0#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~2#1;havoc isHighWaterSensorDry_~retValue_acc~2#1; 1010#L150-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~2#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~2#1; 1011#L155-1 isHighWaterLevel_#t~ret21#1 := isHighWaterSensorDry_#res#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~3#1 := isHighWaterLevel_#t~ret21#1;havoc isHighWaterLevel_#t~ret21#1; 1065#L443-3 assume 0 != isHighWaterLevel_~tmp~3#1;isHighWaterLevel_~tmp___0~0#1 := 0; 1066#L443-5 isHighWaterLevel_~retValue_acc~7#1 := isHighWaterLevel_~tmp___0~0#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~7#1; 1137#L449-1 processEnvironment__wrappee__highWaterSensor_#t~ret10#1 := isHighWaterLevel_#res#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~1#1 := processEnvironment__wrappee__highWaterSensor_#t~ret10#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret10#1; 1097#L319-3 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~1#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 1034#L307-2 assume { :end_inline_processEnvironment__wrappee__base } true; 1035#L315-3 assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 1019#L341-1 assume { :end_inline_processEnvironment } true; 1149#L290-1 assume { :begin_inline___utac_acc__Specification4_spec__1 } true;havoc __utac_acc__Specification4_spec__1_#t~ret28#1, __utac_acc__Specification4_spec__1_#t~ret29#1, __utac_acc__Specification4_spec__1_~tmp~6#1, __utac_acc__Specification4_spec__1_~tmp___0~3#1;havoc __utac_acc__Specification4_spec__1_~tmp~6#1;havoc __utac_acc__Specification4_spec__1_~tmp___0~3#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~1#1;havoc getWaterLevel_~retValue_acc~1#1;getWaterLevel_~retValue_acc~1#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~1#1; 1140#L142 __utac_acc__Specification4_spec__1_#t~ret28#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification4_spec__1_~tmp~6#1 := __utac_acc__Specification4_spec__1_#t~ret28#1;havoc __utac_acc__Specification4_spec__1_#t~ret28#1; 1141#L581 assume !(0 == __utac_acc__Specification4_spec__1_~tmp~6#1); 1077#L581-1 assume { :end_inline___utac_acc__Specification4_spec__1 } true; 1078#L300 assume { :end_inline_timeShift } true; 1004#L483-2 [2022-02-21 04:18:04,815 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:18:04,815 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 3 times [2022-02-21 04:18:04,815 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:18:04,815 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2050425775] [2022-02-21 04:18:04,815 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:18:04,815 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:18:04,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:04,823 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:18:04,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:04,832 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:18:04,832 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:18:04,832 INFO L85 PathProgramCache]: Analyzing trace with hash 2016880699, now seen corresponding path program 1 times [2022-02-21 04:18:04,832 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:18:04,833 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [655562902] [2022-02-21 04:18:04,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:18:04,833 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:18:04,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:04,839 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:18:04,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:04,845 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:18:04,845 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:18:04,845 INFO L85 PathProgramCache]: Analyzing trace with hash -1902798857, now seen corresponding path program 1 times [2022-02-21 04:18:04,846 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:18:04,846 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [152704326] [2022-02-21 04:18:04,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:18:04,846 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:18:04,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:04,857 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:18:04,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:04,870 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:18:07,599 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 21.02 04:18:07 BoogieIcfgContainer [2022-02-21 04:18:07,599 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-02-21 04:18:07,600 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-02-21 04:18:07,600 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-02-21 04:18:07,600 INFO L275 PluginConnector]: Witness Printer initialized [2022-02-21 04:18:07,600 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 04:18:03" (3/4) ... [2022-02-21 04:18:07,602 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2022-02-21 04:18:07,630 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-02-21 04:18:07,630 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-02-21 04:18:07,631 INFO L158 Benchmark]: Toolchain (without parser) took 5451.61ms. Allocated memory was 100.7MB in the beginning and 161.5MB in the end (delta: 60.8MB). Free memory was 69.0MB in the beginning and 111.8MB in the end (delta: -42.7MB). Peak memory consumption was 18.1MB. Max. memory is 16.1GB. [2022-02-21 04:18:07,634 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 81.8MB. Free memory was 38.3MB in the beginning and 38.3MB in the end (delta: 48.2kB). There was no memory consumed. Max. memory is 16.1GB. [2022-02-21 04:18:07,634 INFO L158 Benchmark]: CACSL2BoogieTranslator took 425.03ms. Allocated memory is still 100.7MB. Free memory was 68.8MB in the beginning and 66.3MB in the end (delta: 2.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-02-21 04:18:07,635 INFO L158 Benchmark]: Boogie Procedure Inliner took 65.83ms. Allocated memory is still 100.7MB. Free memory was 66.3MB in the beginning and 62.1MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-02-21 04:18:07,635 INFO L158 Benchmark]: Boogie Preprocessor took 45.59ms. Allocated memory is still 100.7MB. Free memory was 62.1MB in the beginning and 59.5MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-02-21 04:18:07,636 INFO L158 Benchmark]: RCFGBuilder took 562.95ms. Allocated memory is still 100.7MB. Free memory was 59.5MB in the beginning and 33.8MB in the end (delta: 25.8MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2022-02-21 04:18:07,636 INFO L158 Benchmark]: BuchiAutomizer took 4317.14ms. Allocated memory was 100.7MB in the beginning and 161.5MB in the end (delta: 60.8MB). Free memory was 33.8MB in the beginning and 113.9MB in the end (delta: -80.1MB). Peak memory consumption was 44.8MB. Max. memory is 16.1GB. [2022-02-21 04:18:07,636 INFO L158 Benchmark]: Witness Printer took 30.54ms. Allocated memory is still 161.5MB. Free memory was 113.9MB in the beginning and 111.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-02-21 04:18:07,637 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - AssertionsEnabledResult: Assertions are enabled Assertions are enabled - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 81.8MB. Free memory was 38.3MB in the beginning and 38.3MB in the end (delta: 48.2kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 425.03ms. Allocated memory is still 100.7MB. Free memory was 68.8MB in the beginning and 66.3MB in the end (delta: 2.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 65.83ms. Allocated memory is still 100.7MB. Free memory was 66.3MB in the beginning and 62.1MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 45.59ms. Allocated memory is still 100.7MB. Free memory was 62.1MB in the beginning and 59.5MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 562.95ms. Allocated memory is still 100.7MB. Free memory was 59.5MB in the beginning and 33.8MB in the end (delta: 25.8MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * BuchiAutomizer took 4317.14ms. Allocated memory was 100.7MB in the beginning and 161.5MB in the end (delta: 60.8MB). Free memory was 33.8MB in the beginning and 113.9MB in the end (delta: -80.1MB). Peak memory consumption was 44.8MB. Max. memory is 16.1GB. * Witness Printer took 30.54ms. Allocated memory is still 161.5MB. Free memory was 113.9MB in the beginning and 111.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 2 terminating modules (2 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.2 modules have a trivial ranking function, the largest among these consists of 6 locations. The remainder module has 204 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 4.2s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 3.3s. Construction of modules took 0.0s. Büchi inclusion checks took 0.5s. Highest rank in rank-based complementation 0. Minimization of det autom 2. Minimization of nondet autom 0. Automata minimization 0.1s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 204 states and ocurred in iteration 2. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 745 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 745 mSDsluCounter, 496 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 99 mSDsCounter, 24 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 38 IncrementalHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 24 mSolverCounterUnsat, 397 mSDtfsCounter, 38 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI1 SFLT0 conc1 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 483]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=1} State at position 1 is {splverifierCounter=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@65f6ddaf=0, tmp___0=0, NULL=0, head=0, pumpRunning=0, tmp___0=0, NULL=1, tmp___0=0, retValue_acc=1, methaneLevelCritical=0, retValue_acc=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@618bd555=0, tmp=1, \result=1, \result=1, tmp=1, retValue_acc=0, tmp___2=29, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@59aaf406=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7d17a0b5=0, cleanupTimeShifts=4, tmp=1, \result=0, tmp=0, head=0, \result=1, tmp___1=0, retValue_acc=0, NULL=0, waterLevel=1, systemActive=1, retValue_acc=1, tmp=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@144abbf1=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@76f1ec45=0, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2480101=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@212370b5=29, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4d6ccfde=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5be75e63=0, tmp=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 483]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L67] int waterLevel = 1; [L68] int methaneLevelCritical = 0; [L170] int cleanupTimeShifts = 4; [L275] int pumpRunning = 0; [L276] int systemActive = 1; [L768] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L249] int retValue_acc ; [L250] int tmp ; [L254] FCALL select_helpers() [L255] FCALL select_features() [L256] CALL, EXPR valid_product() [L564] int retValue_acc ; [L567] retValue_acc = 1 [L568] return (retValue_acc); [L256] RET, EXPR valid_product() [L256] tmp = valid_product() [L258] COND TRUE \read(tmp) [L260] FCALL setup() [L261] CALL runTest() [L240] CALL test() [L474] int splverifierCounter ; [L475] int tmp ; [L476] int tmp___0 ; [L477] int tmp___1 ; [L478] int tmp___2 ; [L481] splverifierCounter = 0 Loop: [L483] COND TRUE 1 [L485] COND TRUE splverifierCounter < 4 [L491] tmp = __VERIFIER_nondet_int() [L493] COND FALSE !(\read(tmp)) [L501] tmp___0 = __VERIFIER_nondet_int() [L503] COND FALSE !(\read(tmp___0)) [L511] tmp___2 = __VERIFIER_nondet_int() [L513] COND TRUE \read(tmp___2) [L526] CALL timeShift() [L283] COND FALSE !(\read(pumpRunning)) [L290] COND TRUE \read(systemActive) [L292] CALL processEnvironment() [L338] int tmp ; [L341] COND FALSE !(\read(pumpRunning)) [L356] CALL processEnvironment__wrappee__highWaterSensor() [L312] int tmp ; [L315] COND TRUE ! pumpRunning [L317] CALL, EXPR isHighWaterLevel() [L435] int retValue_acc ; [L436] int tmp ; [L437] int tmp___0 ; [L441] CALL, EXPR isHighWaterSensorDry() [L147] int retValue_acc ; [L150] COND TRUE waterLevel < 2 [L151] retValue_acc = 1 [L152] return (retValue_acc); [L441] RET, EXPR isHighWaterSensorDry() [L441] tmp = isHighWaterSensorDry() [L443] COND TRUE \read(tmp) [L444] tmp___0 = 0 [L448] retValue_acc = tmp___0 [L449] return (retValue_acc); [L317] RET, EXPR isHighWaterLevel() [L317] tmp = isHighWaterLevel() [L319] COND FALSE !(\read(tmp)) [L325] FCALL processEnvironment__wrappee__base() [L356] RET processEnvironment__wrappee__highWaterSensor() [L292] RET processEnvironment() [L298] CALL __utac_acc__Specification4_spec__1() [L574] int tmp ; [L575] int tmp___0 ; [L579] CALL, EXPR getWaterLevel() [L138] int retValue_acc ; [L141] retValue_acc = waterLevel [L142] return (retValue_acc); [L579] RET, EXPR getWaterLevel() [L579] tmp = getWaterLevel() [L581] COND FALSE !(tmp == 0) [L298] RET __utac_acc__Specification4_spec__1() [L526] RET timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2022-02-21 04:18:07,677 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM)