./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/minepump_spec4_product39.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_product39.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 87e1d1b45ecae6206db87e264fd33705b608c5376aceaefe9ff79eccaaf25b96 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-03d7b7b [2022-02-21 04:17:54,962 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-21 04:17:54,963 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-21 04:17:55,012 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-02-21 04:17:55,012 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-02-21 04:17:55,015 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-02-21 04:17:55,032 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-02-21 04:17:55,034 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-02-21 04:17:55,036 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-02-21 04:17:55,039 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-02-21 04:17:55,039 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-02-21 04:17:55,040 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-02-21 04:17:55,041 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-21 04:17:55,042 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-21 04:17:55,043 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-21 04:17:55,045 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-21 04:17:55,046 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-21 04:17:55,047 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-21 04:17:55,048 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-21 04:17:55,052 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-21 04:17:55,053 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-21 04:17:55,054 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-21 04:17:55,055 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-21 04:17:55,055 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-21 04:17:55,060 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-02-21 04:17:55,060 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-02-21 04:17:55,060 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-02-21 04:17:55,062 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-02-21 04:17:55,075 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-02-21 04:17:55,076 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-02-21 04:17:55,076 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-02-21 04:17:55,077 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-02-21 04:17:55,078 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-02-21 04:17:55,079 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-02-21 04:17:55,080 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-02-21 04:17:55,080 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-02-21 04:17:55,080 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-02-21 04:17:55,080 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-02-21 04:17:55,081 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-21 04:17:55,081 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-21 04:17:55,081 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-21 04:17:55,083 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2022-02-21 04:17:55,123 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-21 04:17:55,123 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-21 04:17:55,123 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-02-21 04:17:55,123 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-02-21 04:17:55,124 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-02-21 04:17:55,124 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-02-21 04:17:55,124 INFO L138 SettingsManager]: * Use SBE=true [2022-02-21 04:17:55,125 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-02-21 04:17:55,125 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-02-21 04:17:55,125 INFO L138 SettingsManager]: * Use old map elimination=false [2022-02-21 04:17:55,125 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-02-21 04:17:55,125 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-02-21 04:17:55,125 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-02-21 04:17:55,126 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-21 04:17:55,126 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-21 04:17:55,126 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-02-21 04:17:55,126 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-21 04:17:55,126 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-21 04:17:55,126 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-21 04:17:55,126 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-02-21 04:17:55,126 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-02-21 04:17:55,126 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-02-21 04:17:55,126 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-21 04:17:55,126 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-21 04:17:55,126 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-02-21 04:17:55,127 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-21 04:17:55,127 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-02-21 04:17:55,127 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-21 04:17:55,127 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-21 04:17:55,127 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-21 04:17:55,127 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-02-21 04:17:55,128 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-02-21 04:17:55,128 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 87e1d1b45ecae6206db87e264fd33705b608c5376aceaefe9ff79eccaaf25b96 [2022-02-21 04:17:55,486 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-21 04:17:55,513 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-21 04:17:55,515 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-21 04:17:55,516 INFO L271 PluginConnector]: Initializing CDTParser... [2022-02-21 04:17:55,528 INFO L275 PluginConnector]: CDTParser initialized [2022-02-21 04:17:55,529 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec4_product39.cil.c [2022-02-21 04:17:55,620 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f6517d4e2/5a0fc330fe16405bbcba6009b90af8c8/FLAG89d13c5ac [2022-02-21 04:17:56,113 INFO L306 CDTParser]: Found 1 translation units. [2022-02-21 04:17:56,114 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec4_product39.cil.c [2022-02-21 04:17:56,122 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f6517d4e2/5a0fc330fe16405bbcba6009b90af8c8/FLAG89d13c5ac [2022-02-21 04:17:56,562 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f6517d4e2/5a0fc330fe16405bbcba6009b90af8c8 [2022-02-21 04:17:56,567 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-21 04:17:56,568 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-02-21 04:17:56,586 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-02-21 04:17:56,586 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-02-21 04:17:56,589 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-02-21 04:17:56,590 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.02 04:17:56" (1/1) ... [2022-02-21 04:17:56,590 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1997fe79 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:17:56, skipping insertion in model container [2022-02-21 04:17:56,590 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.02 04:17:56" (1/1) ... [2022-02-21 04:17:56,595 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-02-21 04:17:56,646 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-02-21 04:17:57,053 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_product39.cil.c[15496,15509] [2022-02-21 04:17:57,067 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-21 04:17:57,084 INFO L203 MainTranslator]: Completed pre-run [2022-02-21 04:17:57,155 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_product39.cil.c[15496,15509] [2022-02-21 04:17:57,161 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-21 04:17:57,174 INFO L208 MainTranslator]: Completed translation [2022-02-21 04:17:57,175 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:17:57 WrapperNode [2022-02-21 04:17:57,175 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-02-21 04:17:57,176 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-02-21 04:17:57,176 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-02-21 04:17:57,176 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-02-21 04:17:57,181 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:17:57" (1/1) ... [2022-02-21 04:17:57,192 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:17:57" (1/1) ... [2022-02-21 04:17:57,243 INFO L137 Inliner]: procedures = 54, calls = 155, calls flagged for inlining = 52, calls inlined = 79, statements flattened = 588 [2022-02-21 04:17:57,243 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-02-21 04:17:57,244 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-21 04:17:57,244 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-21 04:17:57,244 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-21 04:17:57,250 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:17:57" (1/1) ... [2022-02-21 04:17:57,250 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:17:57" (1/1) ... [2022-02-21 04:17:57,253 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:17:57" (1/1) ... [2022-02-21 04:17:57,261 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:17:57" (1/1) ... [2022-02-21 04:17:57,269 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:17:57" (1/1) ... [2022-02-21 04:17:57,273 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:17:57" (1/1) ... [2022-02-21 04:17:57,275 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:17:57" (1/1) ... [2022-02-21 04:17:57,278 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-21 04:17:57,278 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-21 04:17:57,279 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-21 04:17:57,279 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-21 04:17:57,280 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:17:57" (1/1) ... [2022-02-21 04:17:57,293 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-02-21 04:17:57,310 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-21 04:17:57,320 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 04:17:57,323 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 04:17:57,356 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-02-21 04:17:57,356 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-02-21 04:17:57,357 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-21 04:17:57,357 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-21 04:17:57,478 INFO L234 CfgBuilder]: Building ICFG [2022-02-21 04:17:57,479 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-21 04:17:57,924 INFO L275 CfgBuilder]: Performing block encoding [2022-02-21 04:17:57,929 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-21 04:17:57,929 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-02-21 04:17:57,931 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 04:17:57 BoogieIcfgContainer [2022-02-21 04:17:57,931 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-21 04:17:57,932 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-02-21 04:17:57,932 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-02-21 04:17:57,934 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-02-21 04:17:57,935 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-02-21 04:17:57,935 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 21.02 04:17:56" (1/3) ... [2022-02-21 04:17:57,935 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3d2f1386 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.02 04:17:57, skipping insertion in model container [2022-02-21 04:17:57,942 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-02-21 04:17:57,942 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:17:57" (2/3) ... [2022-02-21 04:17:57,943 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3d2f1386 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.02 04:17:57, skipping insertion in model container [2022-02-21 04:17:57,943 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-02-21 04:17:57,943 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 04:17:57" (3/3) ... [2022-02-21 04:17:57,944 INFO L388 chiAutomizerObserver]: Analyzing ICFG minepump_spec4_product39.cil.c [2022-02-21 04:17:57,979 INFO L359 BuchiCegarLoop]: Interprodecural is true [2022-02-21 04:17:57,980 INFO L360 BuchiCegarLoop]: Hoare is false [2022-02-21 04:17:57,980 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-02-21 04:17:57,980 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-02-21 04:17:57,980 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-02-21 04:17:57,980 INFO L364 BuchiCegarLoop]: Difference is false [2022-02-21 04:17:57,980 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-02-21 04:17:57,980 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2022-02-21 04:17:57,995 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 160 states, 159 states have (on average 1.371069182389937) internal successors, (218), 159 states have internal predecessors, (218), 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 04:17:58,035 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 104 [2022-02-21 04:17:58,036 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:17:58,036 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:17:58,040 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:17:58,041 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 04:17:58,041 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2022-02-21 04:17:58,044 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 160 states, 159 states have (on average 1.371069182389937) internal successors, (218), 159 states have internal predecessors, (218), 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 04:17:58,054 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 104 [2022-02-21 04:17:58,054 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:17:58,054 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:17:58,055 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:17:58,055 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 04:17:58,059 INFO L791 eck$LassoCheckResult]: Stem: 151#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);call #Ultimate.allocInit(13, 16);call #Ultimate.allocInit(3, 17);call write~init~int(79, 17, 0, 1);call write~init~int(110, 17, 1, 1);call write~init~int(0, 17, 2, 1);call #Ultimate.allocInit(4, 18);call write~init~int(79, 18, 0, 1);call write~init~int(102, 18, 1, 1);call write~init~int(102, 18, 2, 1);call write~init~int(0, 18, 3, 1);call #Ultimate.allocInit(7, 19);call write~init~int(44, 19, 0, 1);call write~init~int(80, 19, 1, 1);call write~init~int(117, 19, 2, 1);call write~init~int(109, 19, 3, 1);call write~init~int(112, 19, 4, 1);call write~init~int(58, 19, 5, 1);call write~init~int(0, 19, 6, 1);call #Ultimate.allocInit(3, 20);call write~init~int(79, 20, 0, 1);call write~init~int(110, 20, 1, 1);call write~init~int(0, 20, 2, 1);call #Ultimate.allocInit(4, 21);call write~init~int(79, 21, 0, 1);call write~init~int(102, 21, 1, 1);call write~init~int(102, 21, 2, 1);call write~init~int(0, 21, 3, 1);call #Ultimate.allocInit(3, 22);call write~init~int(41, 22, 0, 1);call write~init~int(32, 22, 1, 1);call write~init~int(0, 22, 2, 1);call #Ultimate.allocInit(2, 23);call write~init~int(10, 23, 0, 1);call write~init~int(0, 23, 1, 1);call #Ultimate.allocInit(13, 24);call #Ultimate.allocInit(7, 25);call write~init~int(44, 25, 0, 1);call write~init~int(77, 25, 1, 1);call write~init~int(101, 25, 2, 1);call write~init~int(116, 25, 3, 1);call write~init~int(104, 25, 4, 1);call write~init~int(58, 25, 5, 1);call write~init~int(0, 25, 6, 1);call #Ultimate.allocInit(5, 26);call write~init~int(67, 26, 0, 1);call write~init~int(82, 26, 1, 1);call write~init~int(73, 26, 2, 1);call write~init~int(84, 26, 3, 1);call write~init~int(0, 26, 4, 1);call #Ultimate.allocInit(3, 27);call write~init~int(79, 27, 0, 1);call write~init~int(75, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(41, 28, 0, 1);call write~init~int(0, 28, 1, 1);~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4; 50#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret49#1, main_~retValue_acc~11#1, main_~tmp~7#1;havoc main_~retValue_acc~11#1;havoc main_~tmp~7#1;assume { :begin_inline_select_helpers } true; 79#L75true assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 154#L68true assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~1#1;havoc valid_product_~retValue_acc~1#1;valid_product_~retValue_acc~1#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~1#1; 24#L83true main_#t~ret49#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~7#1 := main_#t~ret49#1;havoc main_#t~ret49#1; 97#L914true assume 0 != main_~tmp~7#1;assume { :begin_inline_setup } true; 89#L891true assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet28#1, test_#t~nondet29#1, test_#t~nondet30#1, test_#t~nondet31#1, test_~splverifierCounter~0#1, test_~tmp~3#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~3#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 44#L469-2true [2022-02-21 04:17:58,060 INFO L793 eck$LassoCheckResult]: Loop: 44#L469-2true assume !false; 132#L470true assume test_~splverifierCounter~0#1 < 4; 27#L471true test_~tmp~3#1 := test_#t~nondet28#1;havoc test_#t~nondet28#1; 85#L479true assume !(0 != test_~tmp~3#1); 34#L479-2true test_~tmp___0~0#1 := test_#t~nondet29#1;havoc test_#t~nondet29#1; 146#L489true assume !(0 != test_~tmp___0~0#1); 62#L489-2true test_~tmp___2~0#1 := test_#t~nondet30#1;havoc test_#t~nondet30#1; 54#L499true assume 0 != test_~tmp___2~0#1; 109#L505-2true assume { :begin_inline_timeShift } true; 8#L542true assume !(0 != ~pumpRunning~0); 95#L542-2true assume !(0 != ~systemActive~0); 124#L549-1true assume { :begin_inline___utac_acc__Specification4_spec__1 } true;havoc __utac_acc__Specification4_spec__1_#t~ret50#1, __utac_acc__Specification4_spec__1_#t~ret51#1, __utac_acc__Specification4_spec__1_~tmp~8#1, __utac_acc__Specification4_spec__1_~tmp___0~2#1;havoc __utac_acc__Specification4_spec__1_~tmp~8#1;havoc __utac_acc__Specification4_spec__1_~tmp___0~2#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~9#1;havoc getWaterLevel_~retValue_acc~9#1;getWaterLevel_~retValue_acc~9#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~9#1; 52#L813true __utac_acc__Specification4_spec__1_#t~ret50#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification4_spec__1_~tmp~8#1 := __utac_acc__Specification4_spec__1_#t~ret50#1;havoc __utac_acc__Specification4_spec__1_#t~ret50#1; 48#L936true assume !(0 == __utac_acc__Specification4_spec__1_~tmp~8#1); 15#L936-1true assume { :end_inline___utac_acc__Specification4_spec__1 } true; 55#L559true assume { :end_inline_timeShift } true; 44#L469-2true [2022-02-21 04:17:58,063 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:17:58,064 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 1 times [2022-02-21 04:17:58,071 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:17:58,071 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1336727425] [2022-02-21 04:17:58,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:17:58,072 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:17:58,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:17:58,181 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:17:58,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:17:58,249 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:17:58,252 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:17:58,252 INFO L85 PathProgramCache]: Analyzing trace with hash 169805764, now seen corresponding path program 1 times [2022-02-21 04:17:58,252 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:17:58,253 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1716110324] [2022-02-21 04:17:58,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:17:58,254 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:17:58,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:17:58,278 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:17:58,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:17:58,288 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:17:58,290 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:17:58,290 INFO L85 PathProgramCache]: Analyzing trace with hash 1525224840, now seen corresponding path program 1 times [2022-02-21 04:17:58,291 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:17:58,291 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1492521662] [2022-02-21 04:17:58,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:17:58,291 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:17:58,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-21 04:17:58,450 INFO L290 TraceCheckUtils]: 0: Hoare triple {168#true} assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);call #Ultimate.allocInit(13, 16);call #Ultimate.allocInit(3, 17);call write~init~int(79, 17, 0, 1);call write~init~int(110, 17, 1, 1);call write~init~int(0, 17, 2, 1);call #Ultimate.allocInit(4, 18);call write~init~int(79, 18, 0, 1);call write~init~int(102, 18, 1, 1);call write~init~int(102, 18, 2, 1);call write~init~int(0, 18, 3, 1);call #Ultimate.allocInit(7, 19);call write~init~int(44, 19, 0, 1);call write~init~int(80, 19, 1, 1);call write~init~int(117, 19, 2, 1);call write~init~int(109, 19, 3, 1);call write~init~int(112, 19, 4, 1);call write~init~int(58, 19, 5, 1);call write~init~int(0, 19, 6, 1);call #Ultimate.allocInit(3, 20);call write~init~int(79, 20, 0, 1);call write~init~int(110, 20, 1, 1);call write~init~int(0, 20, 2, 1);call #Ultimate.allocInit(4, 21);call write~init~int(79, 21, 0, 1);call write~init~int(102, 21, 1, 1);call write~init~int(102, 21, 2, 1);call write~init~int(0, 21, 3, 1);call #Ultimate.allocInit(3, 22);call write~init~int(41, 22, 0, 1);call write~init~int(32, 22, 1, 1);call write~init~int(0, 22, 2, 1);call #Ultimate.allocInit(2, 23);call write~init~int(10, 23, 0, 1);call write~init~int(0, 23, 1, 1);call #Ultimate.allocInit(13, 24);call #Ultimate.allocInit(7, 25);call write~init~int(44, 25, 0, 1);call write~init~int(77, 25, 1, 1);call write~init~int(101, 25, 2, 1);call write~init~int(116, 25, 3, 1);call write~init~int(104, 25, 4, 1);call write~init~int(58, 25, 5, 1);call write~init~int(0, 25, 6, 1);call #Ultimate.allocInit(5, 26);call write~init~int(67, 26, 0, 1);call write~init~int(82, 26, 1, 1);call write~init~int(73, 26, 2, 1);call write~init~int(84, 26, 3, 1);call write~init~int(0, 26, 4, 1);call #Ultimate.allocInit(3, 27);call write~init~int(79, 27, 0, 1);call write~init~int(75, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(41, 28, 0, 1);call write~init~int(0, 28, 1, 1);~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4; {170#(= 1 ~systemActive~0)} is VALID [2022-02-21 04:17:58,451 INFO L290 TraceCheckUtils]: 1: Hoare triple {170#(= 1 ~systemActive~0)} assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret49#1, main_~retValue_acc~11#1, main_~tmp~7#1;havoc main_~retValue_acc~11#1;havoc main_~tmp~7#1;assume { :begin_inline_select_helpers } true; {170#(= 1 ~systemActive~0)} is VALID [2022-02-21 04:17:58,452 INFO L290 TraceCheckUtils]: 2: Hoare triple {170#(= 1 ~systemActive~0)} assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; {170#(= 1 ~systemActive~0)} is VALID [2022-02-21 04:17:58,452 INFO L290 TraceCheckUtils]: 3: Hoare triple {170#(= 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~1#1;havoc valid_product_~retValue_acc~1#1;valid_product_~retValue_acc~1#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~1#1; {171#(= |ULTIMATE.start_valid_product_#res#1| ~systemActive~0)} is VALID [2022-02-21 04:17:58,453 INFO L290 TraceCheckUtils]: 4: Hoare triple {171#(= |ULTIMATE.start_valid_product_#res#1| ~systemActive~0)} main_#t~ret49#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~7#1 := main_#t~ret49#1;havoc main_#t~ret49#1; {172#(= |ULTIMATE.start_main_~tmp~7#1| ~systemActive~0)} is VALID [2022-02-21 04:17:58,454 INFO L290 TraceCheckUtils]: 5: Hoare triple {172#(= |ULTIMATE.start_main_~tmp~7#1| ~systemActive~0)} assume 0 != main_~tmp~7#1;assume { :begin_inline_setup } true; {173#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:17:58,455 INFO L290 TraceCheckUtils]: 6: Hoare triple {173#(not (= 0 ~systemActive~0))} assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet28#1, test_#t~nondet29#1, test_#t~nondet30#1, test_#t~nondet31#1, test_~splverifierCounter~0#1, test_~tmp~3#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~3#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; {173#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:17:58,455 INFO L290 TraceCheckUtils]: 7: Hoare triple {173#(not (= 0 ~systemActive~0))} assume !false; {173#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:17:58,456 INFO L290 TraceCheckUtils]: 8: Hoare triple {173#(not (= 0 ~systemActive~0))} assume test_~splverifierCounter~0#1 < 4; {173#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:17:58,456 INFO L290 TraceCheckUtils]: 9: Hoare triple {173#(not (= 0 ~systemActive~0))} test_~tmp~3#1 := test_#t~nondet28#1;havoc test_#t~nondet28#1; {173#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:17:58,457 INFO L290 TraceCheckUtils]: 10: Hoare triple {173#(not (= 0 ~systemActive~0))} assume !(0 != test_~tmp~3#1); {173#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:17:58,457 INFO L290 TraceCheckUtils]: 11: Hoare triple {173#(not (= 0 ~systemActive~0))} test_~tmp___0~0#1 := test_#t~nondet29#1;havoc test_#t~nondet29#1; {173#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:17:58,458 INFO L290 TraceCheckUtils]: 12: Hoare triple {173#(not (= 0 ~systemActive~0))} assume !(0 != test_~tmp___0~0#1); {173#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:17:58,458 INFO L290 TraceCheckUtils]: 13: Hoare triple {173#(not (= 0 ~systemActive~0))} test_~tmp___2~0#1 := test_#t~nondet30#1;havoc test_#t~nondet30#1; {173#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:17:58,459 INFO L290 TraceCheckUtils]: 14: Hoare triple {173#(not (= 0 ~systemActive~0))} assume 0 != test_~tmp___2~0#1; {173#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:17:58,459 INFO L290 TraceCheckUtils]: 15: Hoare triple {173#(not (= 0 ~systemActive~0))} assume { :begin_inline_timeShift } true; {173#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:17:58,460 INFO L290 TraceCheckUtils]: 16: Hoare triple {173#(not (= 0 ~systemActive~0))} assume !(0 != ~pumpRunning~0); {173#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:17:58,460 INFO L290 TraceCheckUtils]: 17: Hoare triple {173#(not (= 0 ~systemActive~0))} assume !(0 != ~systemActive~0); {169#false} is VALID [2022-02-21 04:17:58,461 INFO L290 TraceCheckUtils]: 18: Hoare triple {169#false} assume { :begin_inline___utac_acc__Specification4_spec__1 } true;havoc __utac_acc__Specification4_spec__1_#t~ret50#1, __utac_acc__Specification4_spec__1_#t~ret51#1, __utac_acc__Specification4_spec__1_~tmp~8#1, __utac_acc__Specification4_spec__1_~tmp___0~2#1;havoc __utac_acc__Specification4_spec__1_~tmp~8#1;havoc __utac_acc__Specification4_spec__1_~tmp___0~2#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~9#1;havoc getWaterLevel_~retValue_acc~9#1;getWaterLevel_~retValue_acc~9#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~9#1; {169#false} is VALID [2022-02-21 04:17:58,461 INFO L290 TraceCheckUtils]: 19: Hoare triple {169#false} __utac_acc__Specification4_spec__1_#t~ret50#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification4_spec__1_~tmp~8#1 := __utac_acc__Specification4_spec__1_#t~ret50#1;havoc __utac_acc__Specification4_spec__1_#t~ret50#1; {169#false} is VALID [2022-02-21 04:17:58,462 INFO L290 TraceCheckUtils]: 20: Hoare triple {169#false} assume !(0 == __utac_acc__Specification4_spec__1_~tmp~8#1); {169#false} is VALID [2022-02-21 04:17:58,462 INFO L290 TraceCheckUtils]: 21: Hoare triple {169#false} assume { :end_inline___utac_acc__Specification4_spec__1 } true; {169#false} is VALID [2022-02-21 04:17:58,462 INFO L290 TraceCheckUtils]: 22: Hoare triple {169#false} assume { :end_inline_timeShift } true; {169#false} is VALID [2022-02-21 04:17:58,464 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 04:17:58,464 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-21 04:17:58,465 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1492521662] [2022-02-21 04:17:58,465 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1492521662] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-21 04:17:58,465 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-21 04:17:58,465 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-21 04:17:58,466 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1392167661] [2022-02-21 04:17:58,466 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-21 04:17:58,569 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-21 04:17:58,592 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-02-21 04:17:58,593 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-02-21 04:17:58,596 INFO L87 Difference]: Start difference. First operand has 160 states, 159 states have (on average 1.371069182389937) internal successors, (218), 159 states have internal predecessors, (218), 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 04:17:59,341 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:17:59,341 INFO L93 Difference]: Finished difference Result 371 states and 485 transitions. [2022-02-21 04:17:59,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-02-21 04:17:59,342 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 04:17:59,364 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 04:17:59,367 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 371 states and 485 transitions. [2022-02-21 04:17:59,380 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 239 [2022-02-21 04:17:59,392 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 371 states to 341 states and 455 transitions. [2022-02-21 04:17:59,393 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 341 [2022-02-21 04:17:59,393 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 341 [2022-02-21 04:17:59,394 INFO L73 IsDeterministic]: Start isDeterministic. Operand 341 states and 455 transitions. [2022-02-21 04:17:59,395 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-02-21 04:17:59,395 INFO L681 BuchiCegarLoop]: Abstraction has 341 states and 455 transitions. [2022-02-21 04:17:59,407 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 341 states and 455 transitions. [2022-02-21 04:17:59,420 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 341 to 199. [2022-02-21 04:17:59,421 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-02-21 04:17:59,422 INFO L82 GeneralOperation]: Start isEquivalent. First operand 341 states and 455 transitions. Second operand has 199 states, 199 states have (on average 1.3316582914572865) internal successors, (265), 198 states have internal predecessors, (265), 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 04:17:59,423 INFO L74 IsIncluded]: Start isIncluded. First operand 341 states and 455 transitions. Second operand has 199 states, 199 states have (on average 1.3316582914572865) internal successors, (265), 198 states have internal predecessors, (265), 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 04:17:59,424 INFO L87 Difference]: Start difference. First operand 341 states and 455 transitions. Second operand has 199 states, 199 states have (on average 1.3316582914572865) internal successors, (265), 198 states have internal predecessors, (265), 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 04:17:59,434 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:17:59,434 INFO L93 Difference]: Finished difference Result 341 states and 455 transitions. [2022-02-21 04:17:59,434 INFO L276 IsEmpty]: Start isEmpty. Operand 341 states and 455 transitions. [2022-02-21 04:17:59,436 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:17:59,437 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:17:59,437 INFO L74 IsIncluded]: Start isIncluded. First operand has 199 states, 199 states have (on average 1.3316582914572865) internal successors, (265), 198 states have internal predecessors, (265), 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 341 states and 455 transitions. [2022-02-21 04:17:59,438 INFO L87 Difference]: Start difference. First operand has 199 states, 199 states have (on average 1.3316582914572865) internal successors, (265), 198 states have internal predecessors, (265), 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 341 states and 455 transitions. [2022-02-21 04:17:59,447 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:17:59,447 INFO L93 Difference]: Finished difference Result 341 states and 455 transitions. [2022-02-21 04:17:59,447 INFO L276 IsEmpty]: Start isEmpty. Operand 341 states and 455 transitions. [2022-02-21 04:17:59,448 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:17:59,448 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:17:59,449 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-02-21 04:17:59,449 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-02-21 04:17:59,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 199 states, 199 states have (on average 1.3316582914572865) internal successors, (265), 198 states have internal predecessors, (265), 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 04:17:59,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 199 states to 199 states and 265 transitions. [2022-02-21 04:17:59,455 INFO L704 BuchiCegarLoop]: Abstraction has 199 states and 265 transitions. [2022-02-21 04:17:59,455 INFO L587 BuchiCegarLoop]: Abstraction has 199 states and 265 transitions. [2022-02-21 04:17:59,455 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2022-02-21 04:17:59,455 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 199 states and 265 transitions. [2022-02-21 04:17:59,456 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 140 [2022-02-21 04:17:59,456 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:17:59,457 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:17:59,457 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:17:59,457 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 04:17:59,457 INFO L791 eck$LassoCheckResult]: Stem: 695#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);call #Ultimate.allocInit(13, 16);call #Ultimate.allocInit(3, 17);call write~init~int(79, 17, 0, 1);call write~init~int(110, 17, 1, 1);call write~init~int(0, 17, 2, 1);call #Ultimate.allocInit(4, 18);call write~init~int(79, 18, 0, 1);call write~init~int(102, 18, 1, 1);call write~init~int(102, 18, 2, 1);call write~init~int(0, 18, 3, 1);call #Ultimate.allocInit(7, 19);call write~init~int(44, 19, 0, 1);call write~init~int(80, 19, 1, 1);call write~init~int(117, 19, 2, 1);call write~init~int(109, 19, 3, 1);call write~init~int(112, 19, 4, 1);call write~init~int(58, 19, 5, 1);call write~init~int(0, 19, 6, 1);call #Ultimate.allocInit(3, 20);call write~init~int(79, 20, 0, 1);call write~init~int(110, 20, 1, 1);call write~init~int(0, 20, 2, 1);call #Ultimate.allocInit(4, 21);call write~init~int(79, 21, 0, 1);call write~init~int(102, 21, 1, 1);call write~init~int(102, 21, 2, 1);call write~init~int(0, 21, 3, 1);call #Ultimate.allocInit(3, 22);call write~init~int(41, 22, 0, 1);call write~init~int(32, 22, 1, 1);call write~init~int(0, 22, 2, 1);call #Ultimate.allocInit(2, 23);call write~init~int(10, 23, 0, 1);call write~init~int(0, 23, 1, 1);call #Ultimate.allocInit(13, 24);call #Ultimate.allocInit(7, 25);call write~init~int(44, 25, 0, 1);call write~init~int(77, 25, 1, 1);call write~init~int(101, 25, 2, 1);call write~init~int(116, 25, 3, 1);call write~init~int(104, 25, 4, 1);call write~init~int(58, 25, 5, 1);call write~init~int(0, 25, 6, 1);call #Ultimate.allocInit(5, 26);call write~init~int(67, 26, 0, 1);call write~init~int(82, 26, 1, 1);call write~init~int(73, 26, 2, 1);call write~init~int(84, 26, 3, 1);call write~init~int(0, 26, 4, 1);call #Ultimate.allocInit(3, 27);call write~init~int(79, 27, 0, 1);call write~init~int(75, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(41, 28, 0, 1);call write~init~int(0, 28, 1, 1);~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4; 629#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret49#1, main_~retValue_acc~11#1, main_~tmp~7#1;havoc main_~retValue_acc~11#1;havoc main_~tmp~7#1;assume { :begin_inline_select_helpers } true; 630#L75 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 666#L68 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~1#1;havoc valid_product_~retValue_acc~1#1;valid_product_~retValue_acc~1#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~1#1; 589#L83 main_#t~ret49#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~7#1 := main_#t~ret49#1;havoc main_#t~ret49#1; 590#L914 assume 0 != main_~tmp~7#1;assume { :begin_inline_setup } true; 675#L891 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet28#1, test_#t~nondet29#1, test_#t~nondet30#1, test_#t~nondet31#1, test_~splverifierCounter~0#1, test_~tmp~3#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~3#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 621#L469-2 [2022-02-21 04:17:59,458 INFO L793 eck$LassoCheckResult]: Loop: 621#L469-2 assume !false; 622#L470 assume test_~splverifierCounter~0#1 < 4; 595#L471 test_~tmp~3#1 := test_#t~nondet28#1;havoc test_#t~nondet28#1; 596#L479 assume !(0 != test_~tmp~3#1); 604#L479-2 test_~tmp___0~0#1 := test_#t~nondet29#1;havoc test_#t~nondet29#1; 605#L489 assume !(0 != test_~tmp___0~0#1); 562#L489-2 test_~tmp___2~0#1 := test_#t~nondet30#1;havoc test_#t~nondet30#1; 636#L499 assume 0 != test_~tmp___2~0#1; 614#L505-2 assume { :begin_inline_timeShift } true; 556#L542 assume !(0 != ~pumpRunning~0); 557#L542-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret33#1, processEnvironment_~tmp~5#1;havoc processEnvironment_~tmp~5#1; 679#L600 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret32#1, processEnvironment__wrappee__highWaterSensor_~tmp~4#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~4#1; 660#L574-2 assume !(0 == ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true; 661#L566-3 assume { :end_inline_processEnvironment__wrappee__base } true; 648#L574-3 assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 665#L600-1 assume { :end_inline_processEnvironment } true; 671#L549-1 assume { :begin_inline___utac_acc__Specification4_spec__1 } true;havoc __utac_acc__Specification4_spec__1_#t~ret50#1, __utac_acc__Specification4_spec__1_#t~ret51#1, __utac_acc__Specification4_spec__1_~tmp~8#1, __utac_acc__Specification4_spec__1_~tmp___0~2#1;havoc __utac_acc__Specification4_spec__1_~tmp~8#1;havoc __utac_acc__Specification4_spec__1_~tmp___0~2#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~9#1;havoc getWaterLevel_~retValue_acc~9#1;getWaterLevel_~retValue_acc~9#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~9#1; 633#L813 __utac_acc__Specification4_spec__1_#t~ret50#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification4_spec__1_~tmp~8#1 := __utac_acc__Specification4_spec__1_#t~ret50#1;havoc __utac_acc__Specification4_spec__1_#t~ret50#1; 627#L936 assume !(0 == __utac_acc__Specification4_spec__1_~tmp~8#1); 573#L936-1 assume { :end_inline___utac_acc__Specification4_spec__1 } true; 574#L559 assume { :end_inline_timeShift } true; 621#L469-2 [2022-02-21 04:17:59,458 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:17:59,458 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 2 times [2022-02-21 04:17:59,458 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:17:59,459 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1807685547] [2022-02-21 04:17:59,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:17:59,459 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:17:59,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:17:59,468 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:17:59,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:17:59,491 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:17:59,492 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:17:59,492 INFO L85 PathProgramCache]: Analyzing trace with hash -94485714, now seen corresponding path program 1 times [2022-02-21 04:17:59,492 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:17:59,493 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [59171202] [2022-02-21 04:17:59,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:17:59,493 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:17:59,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-21 04:17:59,505 INFO L290 TraceCheckUtils]: 0: Hoare triple {1435#true} assume !false; {1435#true} is VALID [2022-02-21 04:17:59,506 INFO L290 TraceCheckUtils]: 1: Hoare triple {1435#true} assume test_~splverifierCounter~0#1 < 4; {1435#true} is VALID [2022-02-21 04:17:59,506 INFO L290 TraceCheckUtils]: 2: Hoare triple {1435#true} test_~tmp~3#1 := test_#t~nondet28#1;havoc test_#t~nondet28#1; {1435#true} is VALID [2022-02-21 04:17:59,506 INFO L290 TraceCheckUtils]: 3: Hoare triple {1435#true} assume !(0 != test_~tmp~3#1); {1435#true} is VALID [2022-02-21 04:17:59,506 INFO L290 TraceCheckUtils]: 4: Hoare triple {1435#true} test_~tmp___0~0#1 := test_#t~nondet29#1;havoc test_#t~nondet29#1; {1435#true} is VALID [2022-02-21 04:17:59,507 INFO L290 TraceCheckUtils]: 5: Hoare triple {1435#true} assume !(0 != test_~tmp___0~0#1); {1435#true} is VALID [2022-02-21 04:17:59,507 INFO L290 TraceCheckUtils]: 6: Hoare triple {1435#true} test_~tmp___2~0#1 := test_#t~nondet30#1;havoc test_#t~nondet30#1; {1435#true} is VALID [2022-02-21 04:17:59,507 INFO L290 TraceCheckUtils]: 7: Hoare triple {1435#true} assume 0 != test_~tmp___2~0#1; {1435#true} is VALID [2022-02-21 04:17:59,507 INFO L290 TraceCheckUtils]: 8: Hoare triple {1435#true} assume { :begin_inline_timeShift } true; {1435#true} is VALID [2022-02-21 04:17:59,507 INFO L290 TraceCheckUtils]: 9: Hoare triple {1435#true} assume !(0 != ~pumpRunning~0); {1437#(= ~pumpRunning~0 0)} is VALID [2022-02-21 04:17:59,508 INFO L290 TraceCheckUtils]: 10: Hoare triple {1437#(= ~pumpRunning~0 0)} assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret33#1, processEnvironment_~tmp~5#1;havoc processEnvironment_~tmp~5#1; {1437#(= ~pumpRunning~0 0)} is VALID [2022-02-21 04:17:59,508 INFO L290 TraceCheckUtils]: 11: Hoare triple {1437#(= ~pumpRunning~0 0)} assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret32#1, processEnvironment__wrappee__highWaterSensor_~tmp~4#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~4#1; {1437#(= ~pumpRunning~0 0)} is VALID [2022-02-21 04:17:59,509 INFO L290 TraceCheckUtils]: 12: Hoare triple {1437#(= ~pumpRunning~0 0)} assume !(0 == ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true; {1436#false} is VALID [2022-02-21 04:17:59,509 INFO L290 TraceCheckUtils]: 13: Hoare triple {1436#false} assume { :end_inline_processEnvironment__wrappee__base } true; {1436#false} is VALID [2022-02-21 04:17:59,509 INFO L290 TraceCheckUtils]: 14: Hoare triple {1436#false} assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; {1436#false} is VALID [2022-02-21 04:17:59,509 INFO L290 TraceCheckUtils]: 15: Hoare triple {1436#false} assume { :end_inline_processEnvironment } true; {1436#false} is VALID [2022-02-21 04:17:59,509 INFO L290 TraceCheckUtils]: 16: Hoare triple {1436#false} assume { :begin_inline___utac_acc__Specification4_spec__1 } true;havoc __utac_acc__Specification4_spec__1_#t~ret50#1, __utac_acc__Specification4_spec__1_#t~ret51#1, __utac_acc__Specification4_spec__1_~tmp~8#1, __utac_acc__Specification4_spec__1_~tmp___0~2#1;havoc __utac_acc__Specification4_spec__1_~tmp~8#1;havoc __utac_acc__Specification4_spec__1_~tmp___0~2#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~9#1;havoc getWaterLevel_~retValue_acc~9#1;getWaterLevel_~retValue_acc~9#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~9#1; {1436#false} is VALID [2022-02-21 04:17:59,509 INFO L290 TraceCheckUtils]: 17: Hoare triple {1436#false} __utac_acc__Specification4_spec__1_#t~ret50#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification4_spec__1_~tmp~8#1 := __utac_acc__Specification4_spec__1_#t~ret50#1;havoc __utac_acc__Specification4_spec__1_#t~ret50#1; {1436#false} is VALID [2022-02-21 04:17:59,510 INFO L290 TraceCheckUtils]: 18: Hoare triple {1436#false} assume !(0 == __utac_acc__Specification4_spec__1_~tmp~8#1); {1436#false} is VALID [2022-02-21 04:17:59,510 INFO L290 TraceCheckUtils]: 19: Hoare triple {1436#false} assume { :end_inline___utac_acc__Specification4_spec__1 } true; {1436#false} is VALID [2022-02-21 04:17:59,510 INFO L290 TraceCheckUtils]: 20: Hoare triple {1436#false} assume { :end_inline_timeShift } true; {1436#false} is VALID [2022-02-21 04:17:59,510 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 04:17:59,510 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-21 04:17:59,511 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [59171202] [2022-02-21 04:17:59,511 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [59171202] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-21 04:17:59,511 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-21 04:17:59,511 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-02-21 04:17:59,511 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1074035266] [2022-02-21 04:17:59,511 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-21 04:17:59,512 INFO L808 eck$LassoCheckResult]: loop already infeasible [2022-02-21 04:17:59,512 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-21 04:17:59,512 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-02-21 04:17:59,512 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-21 04:17:59,513 INFO L87 Difference]: Start difference. First operand 199 states and 265 transitions. cyclomatic complexity: 69 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 04:17:59,699 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:17:59,700 INFO L93 Difference]: Finished difference Result 249 states and 316 transitions. [2022-02-21 04:17:59,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-21 04:17:59,700 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 04:17:59,716 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 04:17:59,717 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 249 states and 316 transitions. [2022-02-21 04:17:59,722 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 179 [2022-02-21 04:17:59,727 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 249 states to 249 states and 316 transitions. [2022-02-21 04:17:59,727 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 249 [2022-02-21 04:17:59,727 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 249 [2022-02-21 04:17:59,727 INFO L73 IsDeterministic]: Start isDeterministic. Operand 249 states and 316 transitions. [2022-02-21 04:17:59,728 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-02-21 04:17:59,728 INFO L681 BuchiCegarLoop]: Abstraction has 249 states and 316 transitions. [2022-02-21 04:17:59,728 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 249 states and 316 transitions. [2022-02-21 04:17:59,733 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 249 to 249. [2022-02-21 04:17:59,734 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-02-21 04:17:59,734 INFO L82 GeneralOperation]: Start isEquivalent. First operand 249 states and 316 transitions. Second operand has 249 states, 249 states have (on average 1.2690763052208835) internal successors, (316), 248 states have internal predecessors, (316), 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 04:17:59,735 INFO L74 IsIncluded]: Start isIncluded. First operand 249 states and 316 transitions. Second operand has 249 states, 249 states have (on average 1.2690763052208835) internal successors, (316), 248 states have internal predecessors, (316), 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 04:17:59,735 INFO L87 Difference]: Start difference. First operand 249 states and 316 transitions. Second operand has 249 states, 249 states have (on average 1.2690763052208835) internal successors, (316), 248 states have internal predecessors, (316), 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 04:17:59,740 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:17:59,740 INFO L93 Difference]: Finished difference Result 249 states and 316 transitions. [2022-02-21 04:17:59,740 INFO L276 IsEmpty]: Start isEmpty. Operand 249 states and 316 transitions. [2022-02-21 04:17:59,740 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:17:59,740 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:17:59,741 INFO L74 IsIncluded]: Start isIncluded. First operand has 249 states, 249 states have (on average 1.2690763052208835) internal successors, (316), 248 states have internal predecessors, (316), 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 249 states and 316 transitions. [2022-02-21 04:17:59,741 INFO L87 Difference]: Start difference. First operand has 249 states, 249 states have (on average 1.2690763052208835) internal successors, (316), 248 states have internal predecessors, (316), 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 249 states and 316 transitions. [2022-02-21 04:17:59,746 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:17:59,746 INFO L93 Difference]: Finished difference Result 249 states and 316 transitions. [2022-02-21 04:17:59,746 INFO L276 IsEmpty]: Start isEmpty. Operand 249 states and 316 transitions. [2022-02-21 04:17:59,747 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:17:59,747 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:17:59,747 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-02-21 04:17:59,747 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-02-21 04:17:59,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 249 states, 249 states have (on average 1.2690763052208835) internal successors, (316), 248 states have internal predecessors, (316), 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 04:17:59,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 249 states to 249 states and 316 transitions. [2022-02-21 04:17:59,752 INFO L704 BuchiCegarLoop]: Abstraction has 249 states and 316 transitions. [2022-02-21 04:17:59,752 INFO L587 BuchiCegarLoop]: Abstraction has 249 states and 316 transitions. [2022-02-21 04:17:59,752 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2022-02-21 04:17:59,752 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 249 states and 316 transitions. [2022-02-21 04:17:59,753 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 179 [2022-02-21 04:17:59,753 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:17:59,753 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:17:59,754 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:17:59,754 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 04:17:59,754 INFO L791 eck$LassoCheckResult]: Stem: 1855#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);call #Ultimate.allocInit(13, 16);call #Ultimate.allocInit(3, 17);call write~init~int(79, 17, 0, 1);call write~init~int(110, 17, 1, 1);call write~init~int(0, 17, 2, 1);call #Ultimate.allocInit(4, 18);call write~init~int(79, 18, 0, 1);call write~init~int(102, 18, 1, 1);call write~init~int(102, 18, 2, 1);call write~init~int(0, 18, 3, 1);call #Ultimate.allocInit(7, 19);call write~init~int(44, 19, 0, 1);call write~init~int(80, 19, 1, 1);call write~init~int(117, 19, 2, 1);call write~init~int(109, 19, 3, 1);call write~init~int(112, 19, 4, 1);call write~init~int(58, 19, 5, 1);call write~init~int(0, 19, 6, 1);call #Ultimate.allocInit(3, 20);call write~init~int(79, 20, 0, 1);call write~init~int(110, 20, 1, 1);call write~init~int(0, 20, 2, 1);call #Ultimate.allocInit(4, 21);call write~init~int(79, 21, 0, 1);call write~init~int(102, 21, 1, 1);call write~init~int(102, 21, 2, 1);call write~init~int(0, 21, 3, 1);call #Ultimate.allocInit(3, 22);call write~init~int(41, 22, 0, 1);call write~init~int(32, 22, 1, 1);call write~init~int(0, 22, 2, 1);call #Ultimate.allocInit(2, 23);call write~init~int(10, 23, 0, 1);call write~init~int(0, 23, 1, 1);call #Ultimate.allocInit(13, 24);call #Ultimate.allocInit(7, 25);call write~init~int(44, 25, 0, 1);call write~init~int(77, 25, 1, 1);call write~init~int(101, 25, 2, 1);call write~init~int(116, 25, 3, 1);call write~init~int(104, 25, 4, 1);call write~init~int(58, 25, 5, 1);call write~init~int(0, 25, 6, 1);call #Ultimate.allocInit(5, 26);call write~init~int(67, 26, 0, 1);call write~init~int(82, 26, 1, 1);call write~init~int(73, 26, 2, 1);call write~init~int(84, 26, 3, 1);call write~init~int(0, 26, 4, 1);call #Ultimate.allocInit(3, 27);call write~init~int(79, 27, 0, 1);call write~init~int(75, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(41, 28, 0, 1);call write~init~int(0, 28, 1, 1);~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4; 1768#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret49#1, main_~retValue_acc~11#1, main_~tmp~7#1;havoc main_~retValue_acc~11#1;havoc main_~tmp~7#1;assume { :begin_inline_select_helpers } true; 1769#L75 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 1808#L68 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~1#1;havoc valid_product_~retValue_acc~1#1;valid_product_~retValue_acc~1#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~1#1; 1724#L83 main_#t~ret49#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~7#1 := main_#t~ret49#1;havoc main_#t~ret49#1; 1725#L914 assume 0 != main_~tmp~7#1;assume { :begin_inline_setup } true; 1818#L891 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet28#1, test_#t~nondet29#1, test_#t~nondet30#1, test_#t~nondet31#1, test_~splverifierCounter~0#1, test_~tmp~3#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~3#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 1819#L469-2 [2022-02-21 04:17:59,755 INFO L793 eck$LassoCheckResult]: Loop: 1819#L469-2 assume !false; 1913#L470 assume test_~splverifierCounter~0#1 < 4; 1914#L471 test_~tmp~3#1 := test_#t~nondet28#1;havoc test_#t~nondet28#1; 1814#L479 assume !(0 != test_~tmp~3#1); 1740#L479-2 test_~tmp___0~0#1 := test_#t~nondet29#1;havoc test_#t~nondet29#1; 1741#L489 assume !(0 != test_~tmp___0~0#1); 1786#L489-2 test_~tmp___2~0#1 := test_#t~nondet30#1;havoc test_#t~nondet30#1; 1775#L499 assume 0 != test_~tmp___2~0#1; 1751#L505-2 assume { :begin_inline_timeShift } true; 1696#L542 assume !(0 != ~pumpRunning~0); 1697#L542-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret33#1, processEnvironment_~tmp~5#1;havoc processEnvironment_~tmp~5#1; 1824#L600 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret32#1, processEnvironment__wrappee__highWaterSensor_~tmp~4#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~4#1; 1803#L574-2 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret43#1, isHighWaterLevel_~retValue_acc~7#1, isHighWaterLevel_~tmp~6#1, isHighWaterLevel_~tmp___0~1#1;havoc isHighWaterLevel_~retValue_acc~7#1;havoc isHighWaterLevel_~tmp~6#1;havoc isHighWaterLevel_~tmp___0~1#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~10#1;havoc isHighWaterSensorDry_~retValue_acc~10#1; 1804#L821-1 assume !(~waterLevel~0 < 2);isHighWaterSensorDry_~retValue_acc~10#1 := 0;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~10#1; 1798#L826-1 isHighWaterLevel_#t~ret43#1 := isHighWaterSensorDry_#res#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~6#1 := isHighWaterLevel_#t~ret43#1;havoc isHighWaterLevel_#t~ret43#1; 1722#L702-3 assume 0 != isHighWaterLevel_~tmp~6#1;isHighWaterLevel_~tmp___0~1#1 := 0; 1723#L702-5 isHighWaterLevel_~retValue_acc~7#1 := isHighWaterLevel_~tmp___0~1#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~7#1; 1734#L708-1 processEnvironment__wrappee__highWaterSensor_#t~ret32#1 := isHighWaterLevel_#res#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~4#1 := processEnvironment__wrappee__highWaterSensor_#t~ret32#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret32#1; 1713#L578-3 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~4#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 1714#L566-2 assume { :end_inline_processEnvironment__wrappee__base } true; 1788#L574-3 assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 1807#L600-1 assume { :end_inline_processEnvironment } true; 1813#L549-1 assume { :begin_inline___utac_acc__Specification4_spec__1 } true;havoc __utac_acc__Specification4_spec__1_#t~ret50#1, __utac_acc__Specification4_spec__1_#t~ret51#1, __utac_acc__Specification4_spec__1_~tmp~8#1, __utac_acc__Specification4_spec__1_~tmp___0~2#1;havoc __utac_acc__Specification4_spec__1_~tmp~8#1;havoc __utac_acc__Specification4_spec__1_~tmp___0~2#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~9#1;havoc getWaterLevel_~retValue_acc~9#1;getWaterLevel_~retValue_acc~9#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~9#1; 1772#L813 __utac_acc__Specification4_spec__1_#t~ret50#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification4_spec__1_~tmp~8#1 := __utac_acc__Specification4_spec__1_#t~ret50#1;havoc __utac_acc__Specification4_spec__1_#t~ret50#1; 1762#L936 assume !(0 == __utac_acc__Specification4_spec__1_~tmp~8#1); 1763#L936-1 assume { :end_inline___utac_acc__Specification4_spec__1 } true; 1915#L559 assume { :end_inline_timeShift } true; 1819#L469-2 [2022-02-21 04:17:59,755 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:17:59,755 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 3 times [2022-02-21 04:17:59,755 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:17:59,755 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [429343763] [2022-02-21 04:17:59,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:17:59,756 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:17:59,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:17:59,763 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:17:59,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:17:59,770 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:17:59,771 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:17:59,771 INFO L85 PathProgramCache]: Analyzing trace with hash 969585700, now seen corresponding path program 1 times [2022-02-21 04:17:59,771 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:17:59,771 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [346252714] [2022-02-21 04:17:59,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:17:59,772 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:17:59,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-21 04:17:59,791 INFO L290 TraceCheckUtils]: 0: Hoare triple {2439#true} assume !false; {2439#true} is VALID [2022-02-21 04:17:59,791 INFO L290 TraceCheckUtils]: 1: Hoare triple {2439#true} assume test_~splverifierCounter~0#1 < 4; {2439#true} is VALID [2022-02-21 04:17:59,791 INFO L290 TraceCheckUtils]: 2: Hoare triple {2439#true} test_~tmp~3#1 := test_#t~nondet28#1;havoc test_#t~nondet28#1; {2439#true} is VALID [2022-02-21 04:17:59,791 INFO L290 TraceCheckUtils]: 3: Hoare triple {2439#true} assume !(0 != test_~tmp~3#1); {2439#true} is VALID [2022-02-21 04:17:59,791 INFO L290 TraceCheckUtils]: 4: Hoare triple {2439#true} test_~tmp___0~0#1 := test_#t~nondet29#1;havoc test_#t~nondet29#1; {2439#true} is VALID [2022-02-21 04:17:59,792 INFO L290 TraceCheckUtils]: 5: Hoare triple {2439#true} assume !(0 != test_~tmp___0~0#1); {2439#true} is VALID [2022-02-21 04:17:59,792 INFO L290 TraceCheckUtils]: 6: Hoare triple {2439#true} test_~tmp___2~0#1 := test_#t~nondet30#1;havoc test_#t~nondet30#1; {2439#true} is VALID [2022-02-21 04:17:59,792 INFO L290 TraceCheckUtils]: 7: Hoare triple {2439#true} assume 0 != test_~tmp___2~0#1; {2439#true} is VALID [2022-02-21 04:17:59,792 INFO L290 TraceCheckUtils]: 8: Hoare triple {2439#true} assume { :begin_inline_timeShift } true; {2439#true} is VALID [2022-02-21 04:17:59,792 INFO L290 TraceCheckUtils]: 9: Hoare triple {2439#true} assume !(0 != ~pumpRunning~0); {2439#true} is VALID [2022-02-21 04:17:59,793 INFO L290 TraceCheckUtils]: 10: Hoare triple {2439#true} assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret33#1, processEnvironment_~tmp~5#1;havoc processEnvironment_~tmp~5#1; {2439#true} is VALID [2022-02-21 04:17:59,793 INFO L290 TraceCheckUtils]: 11: Hoare triple {2439#true} assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret32#1, processEnvironment__wrappee__highWaterSensor_~tmp~4#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~4#1; {2439#true} is VALID [2022-02-21 04:17:59,793 INFO L290 TraceCheckUtils]: 12: Hoare triple {2439#true} assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret43#1, isHighWaterLevel_~retValue_acc~7#1, isHighWaterLevel_~tmp~6#1, isHighWaterLevel_~tmp___0~1#1;havoc isHighWaterLevel_~retValue_acc~7#1;havoc isHighWaterLevel_~tmp~6#1;havoc isHighWaterLevel_~tmp___0~1#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~10#1;havoc isHighWaterSensorDry_~retValue_acc~10#1; {2439#true} is VALID [2022-02-21 04:17:59,793 INFO L290 TraceCheckUtils]: 13: Hoare triple {2439#true} assume !(~waterLevel~0 < 2);isHighWaterSensorDry_~retValue_acc~10#1 := 0;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~10#1; {2441#(= |ULTIMATE.start_isHighWaterSensorDry_#res#1| 0)} is VALID [2022-02-21 04:17:59,794 INFO L290 TraceCheckUtils]: 14: Hoare triple {2441#(= |ULTIMATE.start_isHighWaterSensorDry_#res#1| 0)} isHighWaterLevel_#t~ret43#1 := isHighWaterSensorDry_#res#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~6#1 := isHighWaterLevel_#t~ret43#1;havoc isHighWaterLevel_#t~ret43#1; {2442#(= |ULTIMATE.start_isHighWaterLevel_~tmp~6#1| 0)} is VALID [2022-02-21 04:17:59,794 INFO L290 TraceCheckUtils]: 15: Hoare triple {2442#(= |ULTIMATE.start_isHighWaterLevel_~tmp~6#1| 0)} assume 0 != isHighWaterLevel_~tmp~6#1;isHighWaterLevel_~tmp___0~1#1 := 0; {2440#false} is VALID [2022-02-21 04:17:59,794 INFO L290 TraceCheckUtils]: 16: Hoare triple {2440#false} isHighWaterLevel_~retValue_acc~7#1 := isHighWaterLevel_~tmp___0~1#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~7#1; {2440#false} is VALID [2022-02-21 04:17:59,795 INFO L290 TraceCheckUtils]: 17: Hoare triple {2440#false} processEnvironment__wrappee__highWaterSensor_#t~ret32#1 := isHighWaterLevel_#res#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~4#1 := processEnvironment__wrappee__highWaterSensor_#t~ret32#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret32#1; {2440#false} is VALID [2022-02-21 04:17:59,795 INFO L290 TraceCheckUtils]: 18: Hoare triple {2440#false} assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~4#1);assume { :begin_inline_processEnvironment__wrappee__base } true; {2440#false} is VALID [2022-02-21 04:17:59,795 INFO L290 TraceCheckUtils]: 19: Hoare triple {2440#false} assume { :end_inline_processEnvironment__wrappee__base } true; {2440#false} is VALID [2022-02-21 04:17:59,795 INFO L290 TraceCheckUtils]: 20: Hoare triple {2440#false} assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; {2440#false} is VALID [2022-02-21 04:17:59,795 INFO L290 TraceCheckUtils]: 21: Hoare triple {2440#false} assume { :end_inline_processEnvironment } true; {2440#false} is VALID [2022-02-21 04:17:59,795 INFO L290 TraceCheckUtils]: 22: Hoare triple {2440#false} assume { :begin_inline___utac_acc__Specification4_spec__1 } true;havoc __utac_acc__Specification4_spec__1_#t~ret50#1, __utac_acc__Specification4_spec__1_#t~ret51#1, __utac_acc__Specification4_spec__1_~tmp~8#1, __utac_acc__Specification4_spec__1_~tmp___0~2#1;havoc __utac_acc__Specification4_spec__1_~tmp~8#1;havoc __utac_acc__Specification4_spec__1_~tmp___0~2#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~9#1;havoc getWaterLevel_~retValue_acc~9#1;getWaterLevel_~retValue_acc~9#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~9#1; {2440#false} is VALID [2022-02-21 04:17:59,796 INFO L290 TraceCheckUtils]: 23: Hoare triple {2440#false} __utac_acc__Specification4_spec__1_#t~ret50#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification4_spec__1_~tmp~8#1 := __utac_acc__Specification4_spec__1_#t~ret50#1;havoc __utac_acc__Specification4_spec__1_#t~ret50#1; {2440#false} is VALID [2022-02-21 04:17:59,796 INFO L290 TraceCheckUtils]: 24: Hoare triple {2440#false} assume !(0 == __utac_acc__Specification4_spec__1_~tmp~8#1); {2440#false} is VALID [2022-02-21 04:17:59,796 INFO L290 TraceCheckUtils]: 25: Hoare triple {2440#false} assume { :end_inline___utac_acc__Specification4_spec__1 } true; {2440#false} is VALID [2022-02-21 04:17:59,796 INFO L290 TraceCheckUtils]: 26: Hoare triple {2440#false} assume { :end_inline_timeShift } true; {2440#false} is VALID [2022-02-21 04:17:59,796 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 04:17:59,797 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-21 04:17:59,797 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [346252714] [2022-02-21 04:17:59,797 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [346252714] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-21 04:17:59,797 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-21 04:17:59,797 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-21 04:17:59,797 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2092667070] [2022-02-21 04:17:59,798 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-21 04:17:59,798 INFO L808 eck$LassoCheckResult]: loop already infeasible [2022-02-21 04:17:59,798 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-21 04:17:59,798 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-21 04:17:59,798 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-21 04:17:59,799 INFO L87 Difference]: Start difference. First operand 249 states and 316 transitions. cyclomatic complexity: 70 Second operand has 4 states, 4 states have (on average 6.75) internal successors, (27), 4 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:18:00,229 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:18:00,229 INFO L93 Difference]: Finished difference Result 709 states and 886 transitions. [2022-02-21 04:18:00,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-21 04:18:00,230 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with has 4 states, 4 states have (on average 6.75) internal successors, (27), 4 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:18:00,253 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 27 edges. 27 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-02-21 04:18:00,253 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 709 states and 886 transitions. [2022-02-21 04:18:00,271 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 521 [2022-02-21 04:18:00,288 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 709 states to 709 states and 886 transitions. [2022-02-21 04:18:00,288 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 709 [2022-02-21 04:18:00,289 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 709 [2022-02-21 04:18:00,289 INFO L73 IsDeterministic]: Start isDeterministic. Operand 709 states and 886 transitions. [2022-02-21 04:18:00,290 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-02-21 04:18:00,290 INFO L681 BuchiCegarLoop]: Abstraction has 709 states and 886 transitions. [2022-02-21 04:18:00,290 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 709 states and 886 transitions. [2022-02-21 04:18:00,295 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 709 to 261. [2022-02-21 04:18:00,295 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-02-21 04:18:00,296 INFO L82 GeneralOperation]: Start isEquivalent. First operand 709 states and 886 transitions. Second operand has 261 states, 261 states have (on average 1.2567049808429118) internal successors, (328), 260 states have internal predecessors, (328), 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 04:18:00,296 INFO L74 IsIncluded]: Start isIncluded. First operand 709 states and 886 transitions. Second operand has 261 states, 261 states have (on average 1.2567049808429118) internal successors, (328), 260 states have internal predecessors, (328), 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 04:18:00,297 INFO L87 Difference]: Start difference. First operand 709 states and 886 transitions. Second operand has 261 states, 261 states have (on average 1.2567049808429118) internal successors, (328), 260 states have internal predecessors, (328), 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 04:18:00,310 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:18:00,311 INFO L93 Difference]: Finished difference Result 709 states and 886 transitions. [2022-02-21 04:18:00,311 INFO L276 IsEmpty]: Start isEmpty. Operand 709 states and 886 transitions. [2022-02-21 04:18:00,312 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:18:00,312 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:18:00,313 INFO L74 IsIncluded]: Start isIncluded. First operand has 261 states, 261 states have (on average 1.2567049808429118) internal successors, (328), 260 states have internal predecessors, (328), 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 709 states and 886 transitions. [2022-02-21 04:18:00,313 INFO L87 Difference]: Start difference. First operand has 261 states, 261 states have (on average 1.2567049808429118) internal successors, (328), 260 states have internal predecessors, (328), 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 709 states and 886 transitions. [2022-02-21 04:18:00,327 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:18:00,327 INFO L93 Difference]: Finished difference Result 709 states and 886 transitions. [2022-02-21 04:18:00,327 INFO L276 IsEmpty]: Start isEmpty. Operand 709 states and 886 transitions. [2022-02-21 04:18:00,328 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:18:00,328 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:18:00,328 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-02-21 04:18:00,329 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-02-21 04:18:00,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 261 states, 261 states have (on average 1.2567049808429118) internal successors, (328), 260 states have internal predecessors, (328), 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 04:18:00,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 261 states to 261 states and 328 transitions. [2022-02-21 04:18:00,347 INFO L704 BuchiCegarLoop]: Abstraction has 261 states and 328 transitions. [2022-02-21 04:18:00,347 INFO L587 BuchiCegarLoop]: Abstraction has 261 states and 328 transitions. [2022-02-21 04:18:00,347 INFO L425 BuchiCegarLoop]: ======== Iteration 4============ [2022-02-21 04:18:00,348 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 261 states and 328 transitions. [2022-02-21 04:18:00,348 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 187 [2022-02-21 04:18:00,349 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:18:00,349 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:18:00,349 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:18:00,349 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 04:18:00,349 INFO L791 eck$LassoCheckResult]: Stem: 3328#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);call #Ultimate.allocInit(13, 16);call #Ultimate.allocInit(3, 17);call write~init~int(79, 17, 0, 1);call write~init~int(110, 17, 1, 1);call write~init~int(0, 17, 2, 1);call #Ultimate.allocInit(4, 18);call write~init~int(79, 18, 0, 1);call write~init~int(102, 18, 1, 1);call write~init~int(102, 18, 2, 1);call write~init~int(0, 18, 3, 1);call #Ultimate.allocInit(7, 19);call write~init~int(44, 19, 0, 1);call write~init~int(80, 19, 1, 1);call write~init~int(117, 19, 2, 1);call write~init~int(109, 19, 3, 1);call write~init~int(112, 19, 4, 1);call write~init~int(58, 19, 5, 1);call write~init~int(0, 19, 6, 1);call #Ultimate.allocInit(3, 20);call write~init~int(79, 20, 0, 1);call write~init~int(110, 20, 1, 1);call write~init~int(0, 20, 2, 1);call #Ultimate.allocInit(4, 21);call write~init~int(79, 21, 0, 1);call write~init~int(102, 21, 1, 1);call write~init~int(102, 21, 2, 1);call write~init~int(0, 21, 3, 1);call #Ultimate.allocInit(3, 22);call write~init~int(41, 22, 0, 1);call write~init~int(32, 22, 1, 1);call write~init~int(0, 22, 2, 1);call #Ultimate.allocInit(2, 23);call write~init~int(10, 23, 0, 1);call write~init~int(0, 23, 1, 1);call #Ultimate.allocInit(13, 24);call #Ultimate.allocInit(7, 25);call write~init~int(44, 25, 0, 1);call write~init~int(77, 25, 1, 1);call write~init~int(101, 25, 2, 1);call write~init~int(116, 25, 3, 1);call write~init~int(104, 25, 4, 1);call write~init~int(58, 25, 5, 1);call write~init~int(0, 25, 6, 1);call #Ultimate.allocInit(5, 26);call write~init~int(67, 26, 0, 1);call write~init~int(82, 26, 1, 1);call write~init~int(73, 26, 2, 1);call write~init~int(84, 26, 3, 1);call write~init~int(0, 26, 4, 1);call #Ultimate.allocInit(3, 27);call write~init~int(79, 27, 0, 1);call write~init~int(75, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(41, 28, 0, 1);call write~init~int(0, 28, 1, 1);~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4; 3236#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret49#1, main_~retValue_acc~11#1, main_~tmp~7#1;havoc main_~retValue_acc~11#1;havoc main_~tmp~7#1;assume { :begin_inline_select_helpers } true; 3237#L75 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 3276#L68 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~1#1;havoc valid_product_~retValue_acc~1#1;valid_product_~retValue_acc~1#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~1#1; 3192#L83 main_#t~ret49#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~7#1 := main_#t~ret49#1;havoc main_#t~ret49#1; 3193#L914 assume 0 != main_~tmp~7#1;assume { :begin_inline_setup } true; 3287#L891 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet28#1, test_#t~nondet29#1, test_#t~nondet30#1, test_#t~nondet31#1, test_~splverifierCounter~0#1, test_~tmp~3#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~3#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 3229#L469-2 [2022-02-21 04:18:00,350 INFO L793 eck$LassoCheckResult]: Loop: 3229#L469-2 assume !false; 3230#L470 assume test_~splverifierCounter~0#1 < 4; 3198#L471 test_~tmp~3#1 := test_#t~nondet28#1;havoc test_#t~nondet28#1; 3199#L479 assume !(0 != test_~tmp~3#1); 3400#L479-2 test_~tmp___0~0#1 := test_#t~nondet29#1;havoc test_#t~nondet29#1; 3398#L489 assume !(0 != test_~tmp___0~0#1); 3396#L489-2 test_~tmp___2~0#1 := test_#t~nondet30#1;havoc test_#t~nondet30#1; 3395#L499 assume 0 != test_~tmp___2~0#1; 3306#L505-2 assume { :begin_inline_timeShift } true; 3307#L542 assume !(0 != ~pumpRunning~0); 3340#L542-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret33#1, processEnvironment_~tmp~5#1;havoc processEnvironment_~tmp~5#1; 3320#L600 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret32#1, processEnvironment__wrappee__highWaterSensor_~tmp~4#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~4#1; 3270#L574-2 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret43#1, isHighWaterLevel_~retValue_acc~7#1, isHighWaterLevel_~tmp~6#1, isHighWaterLevel_~tmp___0~1#1;havoc isHighWaterLevel_~retValue_acc~7#1;havoc isHighWaterLevel_~tmp~6#1;havoc isHighWaterLevel_~tmp___0~1#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~10#1;havoc isHighWaterSensorDry_~retValue_acc~10#1; 3271#L821-1 assume !(~waterLevel~0 < 2);isHighWaterSensorDry_~retValue_acc~10#1 := 0;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~10#1; 3333#L826-1 isHighWaterLevel_#t~ret43#1 := isHighWaterSensorDry_#res#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~6#1 := isHighWaterLevel_#t~ret43#1;havoc isHighWaterLevel_#t~ret43#1; 3190#L702-3 assume !(0 != isHighWaterLevel_~tmp~6#1);isHighWaterLevel_~tmp___0~1#1 := 1; 3191#L702-5 isHighWaterLevel_~retValue_acc~7#1 := isHighWaterLevel_~tmp___0~1#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~7#1; 3202#L708-1 processEnvironment__wrappee__highWaterSensor_#t~ret32#1 := isHighWaterLevel_#res#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~4#1 := processEnvironment__wrappee__highWaterSensor_#t~ret32#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret32#1; 3179#L578-3 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~4#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 3180#L566-2 assume { :end_inline_processEnvironment__wrappee__base } true; 3254#L574-3 assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 3275#L600-1 assume { :end_inline_processEnvironment } true; 3281#L549-1 assume { :begin_inline___utac_acc__Specification4_spec__1 } true;havoc __utac_acc__Specification4_spec__1_#t~ret50#1, __utac_acc__Specification4_spec__1_#t~ret51#1, __utac_acc__Specification4_spec__1_~tmp~8#1, __utac_acc__Specification4_spec__1_~tmp___0~2#1;havoc __utac_acc__Specification4_spec__1_~tmp~8#1;havoc __utac_acc__Specification4_spec__1_~tmp___0~2#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~9#1;havoc getWaterLevel_~retValue_acc~9#1;getWaterLevel_~retValue_acc~9#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~9#1; 3240#L813 __utac_acc__Specification4_spec__1_#t~ret50#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification4_spec__1_~tmp~8#1 := __utac_acc__Specification4_spec__1_#t~ret50#1;havoc __utac_acc__Specification4_spec__1_#t~ret50#1; 3231#L936 assume !(0 == __utac_acc__Specification4_spec__1_~tmp~8#1); 3175#L936-1 assume { :end_inline___utac_acc__Specification4_spec__1 } true; 3176#L559 assume { :end_inline_timeShift } true; 3229#L469-2 [2022-02-21 04:18:00,350 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:18:00,350 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 4 times [2022-02-21 04:18:00,351 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:18:00,351 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1213506387] [2022-02-21 04:18:00,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:18:00,351 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:18:00,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:00,359 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:18:00,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:00,366 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:18:00,367 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:18:00,367 INFO L85 PathProgramCache]: Analyzing trace with hash 1227751138, now seen corresponding path program 1 times [2022-02-21 04:18:00,367 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:18:00,367 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1483764184] [2022-02-21 04:18:00,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:18:00,368 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:18:00,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-21 04:18:00,395 INFO L290 TraceCheckUtils]: 0: Hoare triple {4839#true} assume !false; {4839#true} is VALID [2022-02-21 04:18:00,395 INFO L290 TraceCheckUtils]: 1: Hoare triple {4839#true} assume test_~splverifierCounter~0#1 < 4; {4839#true} is VALID [2022-02-21 04:18:00,395 INFO L290 TraceCheckUtils]: 2: Hoare triple {4839#true} test_~tmp~3#1 := test_#t~nondet28#1;havoc test_#t~nondet28#1; {4839#true} is VALID [2022-02-21 04:18:00,396 INFO L290 TraceCheckUtils]: 3: Hoare triple {4839#true} assume !(0 != test_~tmp~3#1); {4839#true} is VALID [2022-02-21 04:18:00,396 INFO L290 TraceCheckUtils]: 4: Hoare triple {4839#true} test_~tmp___0~0#1 := test_#t~nondet29#1;havoc test_#t~nondet29#1; {4839#true} is VALID [2022-02-21 04:18:00,396 INFO L290 TraceCheckUtils]: 5: Hoare triple {4839#true} assume !(0 != test_~tmp___0~0#1); {4839#true} is VALID [2022-02-21 04:18:00,396 INFO L290 TraceCheckUtils]: 6: Hoare triple {4839#true} test_~tmp___2~0#1 := test_#t~nondet30#1;havoc test_#t~nondet30#1; {4839#true} is VALID [2022-02-21 04:18:00,396 INFO L290 TraceCheckUtils]: 7: Hoare triple {4839#true} assume 0 != test_~tmp___2~0#1; {4839#true} is VALID [2022-02-21 04:18:00,397 INFO L290 TraceCheckUtils]: 8: Hoare triple {4839#true} assume { :begin_inline_timeShift } true; {4839#true} is VALID [2022-02-21 04:18:00,397 INFO L290 TraceCheckUtils]: 9: Hoare triple {4839#true} assume !(0 != ~pumpRunning~0); {4839#true} is VALID [2022-02-21 04:18:00,397 INFO L290 TraceCheckUtils]: 10: Hoare triple {4839#true} assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret33#1, processEnvironment_~tmp~5#1;havoc processEnvironment_~tmp~5#1; {4839#true} is VALID [2022-02-21 04:18:00,397 INFO L290 TraceCheckUtils]: 11: Hoare triple {4839#true} assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret32#1, processEnvironment__wrappee__highWaterSensor_~tmp~4#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~4#1; {4839#true} is VALID [2022-02-21 04:18:00,397 INFO L290 TraceCheckUtils]: 12: Hoare triple {4839#true} assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret43#1, isHighWaterLevel_~retValue_acc~7#1, isHighWaterLevel_~tmp~6#1, isHighWaterLevel_~tmp___0~1#1;havoc isHighWaterLevel_~retValue_acc~7#1;havoc isHighWaterLevel_~tmp~6#1;havoc isHighWaterLevel_~tmp___0~1#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~10#1;havoc isHighWaterSensorDry_~retValue_acc~10#1; {4839#true} is VALID [2022-02-21 04:18:00,398 INFO L290 TraceCheckUtils]: 13: Hoare triple {4839#true} assume !(~waterLevel~0 < 2);isHighWaterSensorDry_~retValue_acc~10#1 := 0;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~10#1; {4839#true} is VALID [2022-02-21 04:18:00,398 INFO L290 TraceCheckUtils]: 14: Hoare triple {4839#true} isHighWaterLevel_#t~ret43#1 := isHighWaterSensorDry_#res#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~6#1 := isHighWaterLevel_#t~ret43#1;havoc isHighWaterLevel_#t~ret43#1; {4839#true} is VALID [2022-02-21 04:18:00,400 INFO L290 TraceCheckUtils]: 15: Hoare triple {4839#true} assume !(0 != isHighWaterLevel_~tmp~6#1);isHighWaterLevel_~tmp___0~1#1 := 1; {4841#(<= 1 |ULTIMATE.start_isHighWaterLevel_~tmp___0~1#1|)} is VALID [2022-02-21 04:18:00,400 INFO L290 TraceCheckUtils]: 16: Hoare triple {4841#(<= 1 |ULTIMATE.start_isHighWaterLevel_~tmp___0~1#1|)} isHighWaterLevel_~retValue_acc~7#1 := isHighWaterLevel_~tmp___0~1#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~7#1; {4842#(<= 1 |ULTIMATE.start_isHighWaterLevel_#res#1|)} is VALID [2022-02-21 04:18:00,401 INFO L290 TraceCheckUtils]: 17: Hoare triple {4842#(<= 1 |ULTIMATE.start_isHighWaterLevel_#res#1|)} processEnvironment__wrappee__highWaterSensor_#t~ret32#1 := isHighWaterLevel_#res#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~4#1 := processEnvironment__wrappee__highWaterSensor_#t~ret32#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret32#1; {4843#(<= 1 |ULTIMATE.start_processEnvironment__wrappee__highWaterSensor_~tmp~4#1|)} is VALID [2022-02-21 04:18:00,401 INFO L290 TraceCheckUtils]: 18: Hoare triple {4843#(<= 1 |ULTIMATE.start_processEnvironment__wrappee__highWaterSensor_~tmp~4#1|)} assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~4#1);assume { :begin_inline_processEnvironment__wrappee__base } true; {4840#false} is VALID [2022-02-21 04:18:00,401 INFO L290 TraceCheckUtils]: 19: Hoare triple {4840#false} assume { :end_inline_processEnvironment__wrappee__base } true; {4840#false} is VALID [2022-02-21 04:18:00,401 INFO L290 TraceCheckUtils]: 20: Hoare triple {4840#false} assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; {4840#false} is VALID [2022-02-21 04:18:00,402 INFO L290 TraceCheckUtils]: 21: Hoare triple {4840#false} assume { :end_inline_processEnvironment } true; {4840#false} is VALID [2022-02-21 04:18:00,402 INFO L290 TraceCheckUtils]: 22: Hoare triple {4840#false} assume { :begin_inline___utac_acc__Specification4_spec__1 } true;havoc __utac_acc__Specification4_spec__1_#t~ret50#1, __utac_acc__Specification4_spec__1_#t~ret51#1, __utac_acc__Specification4_spec__1_~tmp~8#1, __utac_acc__Specification4_spec__1_~tmp___0~2#1;havoc __utac_acc__Specification4_spec__1_~tmp~8#1;havoc __utac_acc__Specification4_spec__1_~tmp___0~2#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~9#1;havoc getWaterLevel_~retValue_acc~9#1;getWaterLevel_~retValue_acc~9#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~9#1; {4840#false} is VALID [2022-02-21 04:18:00,402 INFO L290 TraceCheckUtils]: 23: Hoare triple {4840#false} __utac_acc__Specification4_spec__1_#t~ret50#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification4_spec__1_~tmp~8#1 := __utac_acc__Specification4_spec__1_#t~ret50#1;havoc __utac_acc__Specification4_spec__1_#t~ret50#1; {4840#false} is VALID [2022-02-21 04:18:00,402 INFO L290 TraceCheckUtils]: 24: Hoare triple {4840#false} assume !(0 == __utac_acc__Specification4_spec__1_~tmp~8#1); {4840#false} is VALID [2022-02-21 04:18:00,402 INFO L290 TraceCheckUtils]: 25: Hoare triple {4840#false} assume { :end_inline___utac_acc__Specification4_spec__1 } true; {4840#false} is VALID [2022-02-21 04:18:00,403 INFO L290 TraceCheckUtils]: 26: Hoare triple {4840#false} assume { :end_inline_timeShift } true; {4840#false} is VALID [2022-02-21 04:18:00,403 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 04:18:00,403 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-21 04:18:00,403 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1483764184] [2022-02-21 04:18:00,403 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1483764184] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-21 04:18:00,404 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-21 04:18:00,404 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-21 04:18:00,404 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [660486196] [2022-02-21 04:18:00,404 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-21 04:18:00,404 INFO L808 eck$LassoCheckResult]: loop already infeasible [2022-02-21 04:18:00,404 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-21 04:18:00,405 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-21 04:18:00,405 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-21 04:18:00,405 INFO L87 Difference]: Start difference. First operand 261 states and 328 transitions. cyclomatic complexity: 70 Second operand has 5 states, 5 states have (on average 5.4) internal successors, (27), 5 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:18:00,979 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:18:00,979 INFO L93 Difference]: Finished difference Result 649 states and 811 transitions. [2022-02-21 04:18:00,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-21 04:18:00,980 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with has 5 states, 5 states have (on average 5.4) internal successors, (27), 5 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:18:00,999 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 27 edges. 27 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-02-21 04:18:01,000 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 649 states and 811 transitions. [2022-02-21 04:18:01,014 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 481 [2022-02-21 04:18:01,027 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 649 states to 649 states and 811 transitions. [2022-02-21 04:18:01,028 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 649 [2022-02-21 04:18:01,028 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 649 [2022-02-21 04:18:01,028 INFO L73 IsDeterministic]: Start isDeterministic. Operand 649 states and 811 transitions. [2022-02-21 04:18:01,029 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-02-21 04:18:01,029 INFO L681 BuchiCegarLoop]: Abstraction has 649 states and 811 transitions. [2022-02-21 04:18:01,029 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 649 states and 811 transitions. [2022-02-21 04:18:01,033 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 649 to 279. [2022-02-21 04:18:01,034 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-02-21 04:18:01,034 INFO L82 GeneralOperation]: Start isEquivalent. First operand 649 states and 811 transitions. Second operand has 279 states, 279 states have (on average 1.2401433691756272) internal successors, (346), 278 states have internal predecessors, (346), 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 04:18:01,035 INFO L74 IsIncluded]: Start isIncluded. First operand 649 states and 811 transitions. Second operand has 279 states, 279 states have (on average 1.2401433691756272) internal successors, (346), 278 states have internal predecessors, (346), 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 04:18:01,035 INFO L87 Difference]: Start difference. First operand 649 states and 811 transitions. Second operand has 279 states, 279 states have (on average 1.2401433691756272) internal successors, (346), 278 states have internal predecessors, (346), 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 04:18:01,048 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:18:01,048 INFO L93 Difference]: Finished difference Result 649 states and 811 transitions. [2022-02-21 04:18:01,048 INFO L276 IsEmpty]: Start isEmpty. Operand 649 states and 811 transitions. [2022-02-21 04:18:01,049 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:18:01,049 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:18:01,049 INFO L74 IsIncluded]: Start isIncluded. First operand has 279 states, 279 states have (on average 1.2401433691756272) internal successors, (346), 278 states have internal predecessors, (346), 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 649 states and 811 transitions. [2022-02-21 04:18:01,050 INFO L87 Difference]: Start difference. First operand has 279 states, 279 states have (on average 1.2401433691756272) internal successors, (346), 278 states have internal predecessors, (346), 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 649 states and 811 transitions. [2022-02-21 04:18:01,062 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:18:01,063 INFO L93 Difference]: Finished difference Result 649 states and 811 transitions. [2022-02-21 04:18:01,063 INFO L276 IsEmpty]: Start isEmpty. Operand 649 states and 811 transitions. [2022-02-21 04:18:01,064 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:18:01,064 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:18:01,064 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-02-21 04:18:01,064 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-02-21 04:18:01,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 279 states, 279 states have (on average 1.2401433691756272) internal successors, (346), 278 states have internal predecessors, (346), 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 04:18:01,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 279 states to 279 states and 346 transitions. [2022-02-21 04:18:01,068 INFO L704 BuchiCegarLoop]: Abstraction has 279 states and 346 transitions. [2022-02-21 04:18:01,069 INFO L587 BuchiCegarLoop]: Abstraction has 279 states and 346 transitions. [2022-02-21 04:18:01,069 INFO L425 BuchiCegarLoop]: ======== Iteration 5============ [2022-02-21 04:18:01,069 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 279 states and 346 transitions. [2022-02-21 04:18:01,070 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 199 [2022-02-21 04:18:01,070 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:18:01,070 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:18:01,070 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:18:01,071 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 04:18:01,071 INFO L791 eck$LassoCheckResult]: Stem: 5666#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);call #Ultimate.allocInit(13, 16);call #Ultimate.allocInit(3, 17);call write~init~int(79, 17, 0, 1);call write~init~int(110, 17, 1, 1);call write~init~int(0, 17, 2, 1);call #Ultimate.allocInit(4, 18);call write~init~int(79, 18, 0, 1);call write~init~int(102, 18, 1, 1);call write~init~int(102, 18, 2, 1);call write~init~int(0, 18, 3, 1);call #Ultimate.allocInit(7, 19);call write~init~int(44, 19, 0, 1);call write~init~int(80, 19, 1, 1);call write~init~int(117, 19, 2, 1);call write~init~int(109, 19, 3, 1);call write~init~int(112, 19, 4, 1);call write~init~int(58, 19, 5, 1);call write~init~int(0, 19, 6, 1);call #Ultimate.allocInit(3, 20);call write~init~int(79, 20, 0, 1);call write~init~int(110, 20, 1, 1);call write~init~int(0, 20, 2, 1);call #Ultimate.allocInit(4, 21);call write~init~int(79, 21, 0, 1);call write~init~int(102, 21, 1, 1);call write~init~int(102, 21, 2, 1);call write~init~int(0, 21, 3, 1);call #Ultimate.allocInit(3, 22);call write~init~int(41, 22, 0, 1);call write~init~int(32, 22, 1, 1);call write~init~int(0, 22, 2, 1);call #Ultimate.allocInit(2, 23);call write~init~int(10, 23, 0, 1);call write~init~int(0, 23, 1, 1);call #Ultimate.allocInit(13, 24);call #Ultimate.allocInit(7, 25);call write~init~int(44, 25, 0, 1);call write~init~int(77, 25, 1, 1);call write~init~int(101, 25, 2, 1);call write~init~int(116, 25, 3, 1);call write~init~int(104, 25, 4, 1);call write~init~int(58, 25, 5, 1);call write~init~int(0, 25, 6, 1);call #Ultimate.allocInit(5, 26);call write~init~int(67, 26, 0, 1);call write~init~int(82, 26, 1, 1);call write~init~int(73, 26, 2, 1);call write~init~int(84, 26, 3, 1);call write~init~int(0, 26, 4, 1);call #Ultimate.allocInit(3, 27);call write~init~int(79, 27, 0, 1);call write~init~int(75, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(41, 28, 0, 1);call write~init~int(0, 28, 1, 1);~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4; 5580#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret49#1, main_~retValue_acc~11#1, main_~tmp~7#1;havoc main_~retValue_acc~11#1;havoc main_~tmp~7#1;assume { :begin_inline_select_helpers } true; 5581#L75 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 5617#L68 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~1#1;havoc valid_product_~retValue_acc~1#1;valid_product_~retValue_acc~1#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~1#1; 5534#L83 main_#t~ret49#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~7#1 := main_#t~ret49#1;havoc main_#t~ret49#1; 5535#L914 assume 0 != main_~tmp~7#1;assume { :begin_inline_setup } true; 5627#L891 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet28#1, test_#t~nondet29#1, test_#t~nondet30#1, test_#t~nondet31#1, test_~splverifierCounter~0#1, test_~tmp~3#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~3#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 5573#L469-2 [2022-02-21 04:18:01,071 INFO L793 eck$LassoCheckResult]: Loop: 5573#L469-2 assume !false; 5574#L470 assume test_~splverifierCounter~0#1 < 4; 5542#L471 test_~tmp~3#1 := test_#t~nondet28#1;havoc test_#t~nondet28#1; 5543#L479 assume !(0 != test_~tmp~3#1); 5550#L479-2 test_~tmp___0~0#1 := test_#t~nondet29#1;havoc test_#t~nondet29#1; 5551#L489 assume !(0 != test_~tmp___0~0#1); 5509#L489-2 test_~tmp___2~0#1 := test_#t~nondet30#1;havoc test_#t~nondet30#1; 5587#L499 assume 0 != test_~tmp___2~0#1; 5561#L505-2 assume { :begin_inline_timeShift } true; 5503#L542 assume !(0 != ~pumpRunning~0); 5504#L542-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret33#1, processEnvironment_~tmp~5#1;havoc processEnvironment_~tmp~5#1; 5633#L600 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret32#1, processEnvironment__wrappee__highWaterSensor_~tmp~4#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~4#1; 5611#L574-2 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret43#1, isHighWaterLevel_~retValue_acc~7#1, isHighWaterLevel_~tmp~6#1, isHighWaterLevel_~tmp___0~1#1;havoc isHighWaterLevel_~retValue_acc~7#1;havoc isHighWaterLevel_~tmp~6#1;havoc isHighWaterLevel_~tmp___0~1#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~10#1;havoc isHighWaterSensorDry_~retValue_acc~10#1; 5612#L821-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~10#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~10#1; 5670#L826-1 isHighWaterLevel_#t~ret43#1 := isHighWaterSensorDry_#res#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~6#1 := isHighWaterLevel_#t~ret43#1;havoc isHighWaterLevel_#t~ret43#1; 5682#L702-3 assume 0 != isHighWaterLevel_~tmp~6#1;isHighWaterLevel_~tmp___0~1#1 := 0; 5681#L702-5 isHighWaterLevel_~retValue_acc~7#1 := isHighWaterLevel_~tmp___0~1#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~7#1; 5680#L708-1 processEnvironment__wrappee__highWaterSensor_#t~ret32#1 := isHighWaterLevel_#res#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~4#1 := processEnvironment__wrappee__highWaterSensor_#t~ret32#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret32#1; 5678#L578-3 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~4#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 5597#L566-2 assume { :end_inline_processEnvironment__wrappee__base } true; 5598#L574-3 assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 5616#L600-1 assume { :end_inline_processEnvironment } true; 5622#L549-1 assume { :begin_inline___utac_acc__Specification4_spec__1 } true;havoc __utac_acc__Specification4_spec__1_#t~ret50#1, __utac_acc__Specification4_spec__1_#t~ret51#1, __utac_acc__Specification4_spec__1_~tmp~8#1, __utac_acc__Specification4_spec__1_~tmp___0~2#1;havoc __utac_acc__Specification4_spec__1_~tmp~8#1;havoc __utac_acc__Specification4_spec__1_~tmp___0~2#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~9#1;havoc getWaterLevel_~retValue_acc~9#1;getWaterLevel_~retValue_acc~9#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~9#1; 5584#L813 __utac_acc__Specification4_spec__1_#t~ret50#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification4_spec__1_~tmp~8#1 := __utac_acc__Specification4_spec__1_#t~ret50#1;havoc __utac_acc__Specification4_spec__1_#t~ret50#1; 5577#L936 assume !(0 == __utac_acc__Specification4_spec__1_~tmp~8#1); 5520#L936-1 assume { :end_inline___utac_acc__Specification4_spec__1 } true; 5521#L559 assume { :end_inline_timeShift } true; 5573#L469-2 [2022-02-21 04:18:01,071 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:18:01,072 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 5 times [2022-02-21 04:18:01,072 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:18:01,072 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [237893514] [2022-02-21 04:18:01,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:18:01,072 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:18:01,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:01,080 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:18:01,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:01,087 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:18:01,087 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:18:01,087 INFO L85 PathProgramCache]: Analyzing trace with hash 1980702950, now seen corresponding path program 1 times [2022-02-21 04:18:01,088 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:18:01,088 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [170255195] [2022-02-21 04:18:01,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:18:01,088 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:18:01,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:01,095 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:18:01,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:01,100 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:18:01,100 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:18:01,100 INFO L85 PathProgramCache]: Analyzing trace with hash -1938976606, now seen corresponding path program 1 times [2022-02-21 04:18:01,100 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:18:01,100 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [364654318] [2022-02-21 04:18:01,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:18:01,101 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:18:01,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:01,109 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:18:01,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:01,118 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:18:03,638 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 21.02 04:18:03 BoogieIcfgContainer [2022-02-21 04:18:03,638 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-02-21 04:18:03,639 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-02-21 04:18:03,639 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-02-21 04:18:03,639 INFO L275 PluginConnector]: Witness Printer initialized [2022-02-21 04:18:03,639 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 04:17:57" (3/4) ... [2022-02-21 04:18:03,641 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2022-02-21 04:18:03,673 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-02-21 04:18:03,673 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-02-21 04:18:03,674 INFO L158 Benchmark]: Toolchain (without parser) took 7105.88ms. Allocated memory was 67.1MB in the beginning and 146.8MB in the end (delta: 79.7MB). Free memory was 37.7MB in the beginning and 85.3MB in the end (delta: -47.6MB). Peak memory consumption was 34.8MB. Max. memory is 16.1GB. [2022-02-21 04:18:03,675 INFO L158 Benchmark]: CDTParser took 0.22ms. Allocated memory is still 67.1MB. Free memory is still 42.1MB. There was no memory consumed. Max. memory is 16.1GB. [2022-02-21 04:18:03,675 INFO L158 Benchmark]: CACSL2BoogieTranslator took 589.34ms. Allocated memory was 67.1MB in the beginning and 83.9MB in the end (delta: 16.8MB). Free memory was 37.4MB in the beginning and 50.7MB in the end (delta: -13.3MB). Peak memory consumption was 11.6MB. Max. memory is 16.1GB. [2022-02-21 04:18:03,678 INFO L158 Benchmark]: Boogie Procedure Inliner took 67.33ms. Allocated memory is still 83.9MB. Free memory was 50.7MB in the beginning and 46.8MB in the end (delta: 3.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-02-21 04:18:03,678 INFO L158 Benchmark]: Boogie Preprocessor took 34.16ms. Allocated memory is still 83.9MB. Free memory was 46.8MB in the beginning and 44.4MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-02-21 04:18:03,678 INFO L158 Benchmark]: RCFGBuilder took 652.60ms. Allocated memory is still 83.9MB. Free memory was 44.1MB in the beginning and 38.3MB in the end (delta: 5.8MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-02-21 04:18:03,679 INFO L158 Benchmark]: BuchiAutomizer took 5706.71ms. Allocated memory was 83.9MB in the beginning and 146.8MB in the end (delta: 62.9MB). Free memory was 37.9MB in the beginning and 88.3MB in the end (delta: -50.4MB). Peak memory consumption was 61.6MB. Max. memory is 16.1GB. [2022-02-21 04:18:03,679 INFO L158 Benchmark]: Witness Printer took 34.27ms. Allocated memory is still 146.8MB. Free memory was 88.3MB in the beginning and 85.3MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-02-21 04:18:03,680 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 0.22ms. Allocated memory is still 67.1MB. Free memory is still 42.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 589.34ms. Allocated memory was 67.1MB in the beginning and 83.9MB in the end (delta: 16.8MB). Free memory was 37.4MB in the beginning and 50.7MB in the end (delta: -13.3MB). Peak memory consumption was 11.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 67.33ms. Allocated memory is still 83.9MB. Free memory was 50.7MB in the beginning and 46.8MB in the end (delta: 3.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 34.16ms. Allocated memory is still 83.9MB. Free memory was 46.8MB in the beginning and 44.4MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 652.60ms. Allocated memory is still 83.9MB. Free memory was 44.1MB in the beginning and 38.3MB in the end (delta: 5.8MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * BuchiAutomizer took 5706.71ms. Allocated memory was 83.9MB in the beginning and 146.8MB in the end (delta: 62.9MB). Free memory was 37.9MB in the beginning and 88.3MB in the end (delta: -50.4MB). Peak memory consumption was 61.6MB. Max. memory is 16.1GB. * Witness Printer took 34.27ms. Allocated memory is still 146.8MB. Free memory was 88.3MB in the beginning and 85.3MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 4 terminating modules (4 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.4 modules have a trivial ranking function, the largest among these consists of 6 locations. The remainder module has 279 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 5.6s and 5 iterations. TraceHistogramMax:1. Analysis of lassos took 3.2s. Construction of modules took 0.1s. Büchi inclusion checks took 1.8s. Highest rank in rank-based complementation 0. Minimization of det autom 4. Minimization of nondet autom 0. Automata minimization 0.2s AutomataMinimizationTime, 4 MinimizatonAttempts, 960 StatesRemovedByMinimization, 3 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 279 states and ocurred in iteration 4. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1881 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1881 mSDsluCounter, 3086 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2056 mSDsCounter, 73 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 229 IncrementalHoareTripleChecker+Invalid, 302 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 73 mSolverCounterUnsat, 1030 mSDtfsCounter, 229 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI3 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: 469]: 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@217d725a=29, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@d26ba9=0, tmp___0=0, head=0, pumpRunning=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@48e6fabf=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6f590358=0, tmp___0=0, NULL=1, tmp___0=0, retValue_acc=1, methaneLevelCritical=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@54fda2de=0, retValue_acc=1, tmp=1, retValue_acc=0, retValue_acc=1, \result=1, \result=1, tmp=1, tmp=1, tmp___2=29, cleanupTimeShifts=4, tmp=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@71e041a5=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6f30f4=0, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@524df34c=0, tmp=0, head=0, \result=1, tmp___1=0, retValue_acc=0, NULL=0, waterLevel=1, systemActive=1, tmp=0, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@27dd2eeb=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4f959f9a=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 469]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L257] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L534] int pumpRunning = 0; [L535] int systemActive = 1; [L738] int waterLevel = 1; [L739] int methaneLevelCritical = 0; [L832] int cleanupTimeShifts = 4; [L905] int retValue_acc ; [L906] int tmp ; [L910] FCALL select_helpers() [L911] FCALL select_features() [L912] CALL, EXPR valid_product() [L79] int retValue_acc ; [L82] retValue_acc = 1 [L83] return (retValue_acc); [L912] RET, EXPR valid_product() [L912] tmp = valid_product() [L914] COND TRUE \read(tmp) [L916] FCALL setup() [L917] CALL runTest() [L899] CALL test() [L460] int splverifierCounter ; [L461] int tmp ; [L462] int tmp___0 ; [L463] int tmp___1 ; [L464] int tmp___2 ; [L467] splverifierCounter = 0 Loop: [L469] COND TRUE 1 [L471] COND TRUE splverifierCounter < 4 [L477] tmp = __VERIFIER_nondet_int() [L479] COND FALSE !(\read(tmp)) [L487] tmp___0 = __VERIFIER_nondet_int() [L489] COND FALSE !(\read(tmp___0)) [L497] tmp___2 = __VERIFIER_nondet_int() [L499] COND TRUE \read(tmp___2) [L514] CALL timeShift() [L542] COND FALSE !(\read(pumpRunning)) [L549] COND TRUE \read(systemActive) [L551] CALL processEnvironment() [L597] int tmp ; [L600] COND FALSE !(\read(pumpRunning)) [L615] CALL processEnvironment__wrappee__highWaterSensor() [L571] int tmp ; [L574] COND TRUE ! pumpRunning [L576] CALL, EXPR isHighWaterLevel() [L694] int retValue_acc ; [L695] int tmp ; [L696] int tmp___0 ; [L700] CALL, EXPR isHighWaterSensorDry() [L818] int retValue_acc ; [L821] COND TRUE waterLevel < 2 [L822] retValue_acc = 1 [L823] return (retValue_acc); [L700] RET, EXPR isHighWaterSensorDry() [L700] tmp = isHighWaterSensorDry() [L702] COND TRUE \read(tmp) [L703] tmp___0 = 0 [L707] retValue_acc = tmp___0 [L708] return (retValue_acc); [L576] RET, EXPR isHighWaterLevel() [L576] tmp = isHighWaterLevel() [L578] COND FALSE !(\read(tmp)) [L584] FCALL processEnvironment__wrappee__base() [L615] RET processEnvironment__wrappee__highWaterSensor() [L551] RET processEnvironment() [L557] CALL __utac_acc__Specification4_spec__1() [L929] int tmp ; [L930] int tmp___0 ; [L934] CALL, EXPR getWaterLevel() [L809] int retValue_acc ; [L812] retValue_acc = waterLevel [L813] return (retValue_acc); [L934] RET, EXPR getWaterLevel() [L934] tmp = getWaterLevel() [L936] COND FALSE !(tmp == 0) [L557] RET __utac_acc__Specification4_spec__1() [L514] RET timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2022-02-21 04:18:03,743 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)