./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/minepump_spec5_product57.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version f4b24e32 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i ../sv-benchmarks/c/product-lines/minepump_spec5_product57.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 aba011a2dee79947f4cca7910fc4583b21e1f3cb9acd1affa050aa7677352666 --- Real Ultimate output --- This is Ultimate 0.2.2-?-f4b24e3 [2022-07-14 16:00:02,032 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-14 16:00:02,033 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-14 16:00:02,060 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-14 16:00:02,061 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-14 16:00:02,062 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-14 16:00:02,066 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-14 16:00:02,071 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-14 16:00:02,073 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-14 16:00:02,075 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-14 16:00:02,076 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-14 16:00:02,078 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-14 16:00:02,087 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-14 16:00:02,092 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-14 16:00:02,093 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-14 16:00:02,094 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-14 16:00:02,095 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-14 16:00:02,095 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-14 16:00:02,097 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-14 16:00:02,100 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-14 16:00:02,103 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-14 16:00:02,104 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-14 16:00:02,105 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-14 16:00:02,105 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-14 16:00:02,106 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-14 16:00:02,109 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-14 16:00:02,110 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-14 16:00:02,111 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-14 16:00:02,111 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-14 16:00:02,112 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-14 16:00:02,112 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-14 16:00:02,112 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-14 16:00:02,113 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-14 16:00:02,113 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-14 16:00:02,114 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-14 16:00:02,114 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-14 16:00:02,115 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-14 16:00:02,115 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-14 16:00:02,115 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-14 16:00:02,115 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-14 16:00:02,116 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-14 16:00:02,116 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-14 16:00:02,117 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2022-07-14 16:00:02,136 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-14 16:00:02,137 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-14 16:00:02,137 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-14 16:00:02,137 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-14 16:00:02,138 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-14 16:00:02,139 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-14 16:00:02,139 INFO L138 SettingsManager]: * Use SBE=true [2022-07-14 16:00:02,139 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-07-14 16:00:02,139 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-07-14 16:00:02,140 INFO L138 SettingsManager]: * Use old map elimination=false [2022-07-14 16:00:02,140 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-07-14 16:00:02,140 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-07-14 16:00:02,140 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-07-14 16:00:02,140 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-14 16:00:02,141 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-14 16:00:02,141 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-07-14 16:00:02,141 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-14 16:00:02,141 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-14 16:00:02,141 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-14 16:00:02,141 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-07-14 16:00:02,141 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-07-14 16:00:02,142 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-07-14 16:00:02,142 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-14 16:00:02,142 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-14 16:00:02,142 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-07-14 16:00:02,142 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-14 16:00:02,142 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-07-14 16:00:02,143 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-14 16:00:02,143 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-14 16:00:02,143 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-14 16:00:02,143 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-14 16:00:02,144 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-07-14 16:00:02,145 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> aba011a2dee79947f4cca7910fc4583b21e1f3cb9acd1affa050aa7677352666 [2022-07-14 16:00:02,371 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-14 16:00:02,390 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-14 16:00:02,392 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-14 16:00:02,393 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-14 16:00:02,393 INFO L275 PluginConnector]: CDTParser initialized [2022-07-14 16:00:02,394 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec5_product57.cil.c [2022-07-14 16:00:02,447 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4ac84fbda/c3a88ff47ac94937bcb0649030105960/FLAGb43bede51 [2022-07-14 16:00:02,861 INFO L306 CDTParser]: Found 1 translation units. [2022-07-14 16:00:02,862 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec5_product57.cil.c [2022-07-14 16:00:02,873 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4ac84fbda/c3a88ff47ac94937bcb0649030105960/FLAGb43bede51 [2022-07-14 16:00:02,882 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4ac84fbda/c3a88ff47ac94937bcb0649030105960 [2022-07-14 16:00:02,883 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-14 16:00:02,886 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-14 16:00:02,888 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-14 16:00:02,894 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-14 16:00:02,897 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-14 16:00:02,897 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.07 04:00:02" (1/1) ... [2022-07-14 16:00:02,907 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1a0a0346 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 04:00:02, skipping insertion in model container [2022-07-14 16:00:02,907 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.07 04:00:02" (1/1) ... [2022-07-14 16:00:02,914 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-14 16:00:02,968 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-14 16:00:03,062 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec5_product57.cil.c[1605,1618] [2022-07-14 16:00:03,213 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-14 16:00:03,233 INFO L203 MainTranslator]: Completed pre-run [2022-07-14 16:00:03,245 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec5_product57.cil.c[1605,1618] [2022-07-14 16:00:03,294 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-14 16:00:03,306 INFO L208 MainTranslator]: Completed translation [2022-07-14 16:00:03,306 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 04:00:03 WrapperNode [2022-07-14 16:00:03,306 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-14 16:00:03,307 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-14 16:00:03,307 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-14 16:00:03,307 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-14 16:00:03,312 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 04:00:03" (1/1) ... [2022-07-14 16:00:03,322 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 04:00:03" (1/1) ... [2022-07-14 16:00:03,368 INFO L137 Inliner]: procedures = 58, calls = 159, calls flagged for inlining = 56, calls inlined = 102, statements flattened = 765 [2022-07-14 16:00:03,368 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-14 16:00:03,369 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-14 16:00:03,369 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-14 16:00:03,369 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-14 16:00:03,377 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 04:00:03" (1/1) ... [2022-07-14 16:00:03,377 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 04:00:03" (1/1) ... [2022-07-14 16:00:03,390 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 04:00:03" (1/1) ... [2022-07-14 16:00:03,398 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 04:00:03" (1/1) ... [2022-07-14 16:00:03,408 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 04:00:03" (1/1) ... [2022-07-14 16:00:03,413 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 04:00:03" (1/1) ... [2022-07-14 16:00:03,415 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 04:00:03" (1/1) ... [2022-07-14 16:00:03,418 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-14 16:00:03,418 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-14 16:00:03,418 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-14 16:00:03,419 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-14 16:00:03,419 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 04:00:03" (1/1) ... [2022-07-14 16:00:03,438 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-14 16:00:03,444 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 16:00:03,454 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-14 16:00:03,455 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2022-07-14 16:00:03,479 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-14 16:00:03,479 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-14 16:00:03,479 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-14 16:00:03,479 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-14 16:00:03,578 INFO L234 CfgBuilder]: Building ICFG [2022-07-14 16:00:03,580 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-14 16:00:04,039 INFO L275 CfgBuilder]: Performing block encoding [2022-07-14 16:00:04,045 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-14 16:00:04,048 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-07-14 16:00:04,050 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.07 04:00:04 BoogieIcfgContainer [2022-07-14 16:00:04,050 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-14 16:00:04,051 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-07-14 16:00:04,051 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-07-14 16:00:04,053 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-07-14 16:00:04,054 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-14 16:00:04,054 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 14.07 04:00:02" (1/3) ... [2022-07-14 16:00:04,055 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@47dcd508 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 14.07 04:00:04, skipping insertion in model container [2022-07-14 16:00:04,055 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-14 16:00:04,055 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 04:00:03" (2/3) ... [2022-07-14 16:00:04,055 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@47dcd508 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 14.07 04:00:04, skipping insertion in model container [2022-07-14 16:00:04,055 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-14 16:00:04,055 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.07 04:00:04" (3/3) ... [2022-07-14 16:00:04,056 INFO L354 chiAutomizerObserver]: Analyzing ICFG minepump_spec5_product57.cil.c [2022-07-14 16:00:04,092 INFO L255 stractBuchiCegarLoop]: Interprodecural is true [2022-07-14 16:00:04,092 INFO L256 stractBuchiCegarLoop]: Hoare is false [2022-07-14 16:00:04,092 INFO L257 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-07-14 16:00:04,092 INFO L258 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-07-14 16:00:04,093 INFO L259 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-07-14 16:00:04,093 INFO L260 stractBuchiCegarLoop]: Difference is false [2022-07-14 16:00:04,093 INFO L261 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-07-14 16:00:04,093 INFO L265 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2022-07-14 16:00:04,096 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 196 states, 195 states have (on average 1.358974358974359) internal successors, (265), 195 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) [2022-07-14 16:00:04,124 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 126 [2022-07-14 16:00:04,124 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-14 16:00:04,124 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-14 16:00:04,138 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 16:00:04,138 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 16:00:04,139 INFO L287 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2022-07-14 16:00:04,139 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 196 states, 195 states have (on average 1.358974358974359) internal successors, (265), 195 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) [2022-07-14 16:00:04,160 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 126 [2022-07-14 16:00:04,160 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-14 16:00:04,161 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-14 16:00:04,162 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 16:00:04,162 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 16:00:04,165 INFO L752 eck$LassoCheckResult]: Stem: 188#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(13, 4);call #Ultimate.allocInit(7, 5);call write~init~int(44, 5, 0, 1);call write~init~int(77, 5, 1, 1);call write~init~int(101, 5, 2, 1);call write~init~int(116, 5, 3, 1);call write~init~int(104, 5, 4, 1);call write~init~int(58, 5, 5, 1);call write~init~int(0, 5, 6, 1);call #Ultimate.allocInit(5, 6);call write~init~int(67, 6, 0, 1);call write~init~int(82, 6, 1, 1);call write~init~int(73, 6, 2, 1);call write~init~int(84, 6, 3, 1);call write~init~int(0, 6, 4, 1);call #Ultimate.allocInit(3, 7);call write~init~int(79, 7, 0, 1);call write~init~int(75, 7, 1, 1);call write~init~int(0, 7, 2, 1);call #Ultimate.allocInit(2, 8);call write~init~int(41, 8, 0, 1);call write~init~int(0, 8, 1, 1);call #Ultimate.allocInit(30, 9);call #Ultimate.allocInit(9, 10);call #Ultimate.allocInit(21, 11);call #Ultimate.allocInit(30, 12);call #Ultimate.allocInit(9, 13);call #Ultimate.allocInit(21, 14);call #Ultimate.allocInit(30, 15);call #Ultimate.allocInit(9, 16);call #Ultimate.allocInit(25, 17);call #Ultimate.allocInit(30, 18);call #Ultimate.allocInit(9, 19);call #Ultimate.allocInit(25, 20);call #Ultimate.allocInit(13, 21);call #Ultimate.allocInit(3, 22);call write~init~int(79, 22, 0, 1);call write~init~int(110, 22, 1, 1);call write~init~int(0, 22, 2, 1);call #Ultimate.allocInit(4, 23);call write~init~int(79, 23, 0, 1);call write~init~int(102, 23, 1, 1);call write~init~int(102, 23, 2, 1);call write~init~int(0, 23, 3, 1);call #Ultimate.allocInit(7, 24);call write~init~int(44, 24, 0, 1);call write~init~int(80, 24, 1, 1);call write~init~int(117, 24, 2, 1);call write~init~int(109, 24, 3, 1);call write~init~int(112, 24, 4, 1);call write~init~int(58, 24, 5, 1);call write~init~int(0, 24, 6, 1);call #Ultimate.allocInit(3, 25);call write~init~int(79, 25, 0, 1);call write~init~int(110, 25, 1, 1);call write~init~int(0, 25, 2, 1);call #Ultimate.allocInit(4, 26);call write~init~int(79, 26, 0, 1);call write~init~int(102, 26, 1, 1);call write~init~int(102, 26, 2, 1);call write~init~int(0, 26, 3, 1);call #Ultimate.allocInit(3, 27);call write~init~int(41, 27, 0, 1);call write~init~int(32, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(10, 28, 0, 1);call write~init~int(0, 28, 1, 1);~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~switchedOnBeforeTS~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1; 124#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret5#1, main_~retValue_acc~2#1, main_~tmp~0#1;havoc main_~retValue_acc~2#1;havoc main_~tmp~0#1;assume { :begin_inline_select_helpers } true; 90#L84true assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 153#L77true 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; 81#L92true main_#t~ret5#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~0#1 := main_#t~ret5#1;havoc main_#t~ret5#1; 44#L186true assume 0 != main_~tmp~0#1;assume { :begin_inline_setup } true; 65#L160true assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0; 142#L682true assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet37#1, test_#t~nondet38#1, test_#t~nondet39#1, test_#t~nondet40#1, test_~splverifierCounter~0#1, test_~tmp~5#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~5#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 93#L735-2true [2022-07-14 16:00:04,166 INFO L754 eck$LassoCheckResult]: Loop: 93#L735-2true assume !false; 120#L736true assume test_~splverifierCounter~0#1 < 4; 23#L737true test_~tmp~5#1 := test_#t~nondet37#1;havoc test_#t~nondet37#1; 50#L745true assume !(0 != test_~tmp~5#1); 184#L745-2true test_~tmp___0~1#1 := test_#t~nondet38#1;havoc test_#t~nondet38#1; 21#L755true assume !(0 != test_~tmp___0~1#1); 192#L755-2true test_~tmp___2~0#1 := test_#t~nondet39#1;havoc test_#t~nondet39#1; 161#L765true assume 0 != test_~tmp___2~0#1; 42#L771-2true assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret34#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~11#1;havoc isPumpRunning_~retValue_acc~11#1;isPumpRunning_~retValue_acc~11#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~11#1; 6#L931true __utac_acc__Specification5_spec__2_#t~ret34#1 := isPumpRunning_#res#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret34#1;havoc __utac_acc__Specification5_spec__2_#t~ret34#1; 121#L692true assume { :end_inline___utac_acc__Specification5_spec__2 } true; 130#L802true assume !(0 != ~pumpRunning~0); 66#L802-2true assume !(0 != ~systemActive~0); 171#L809-1true assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret35#1, __utac_acc__Specification5_spec__3_#t~ret36#1, __utac_acc__Specification5_spec__3_~tmp~4#1, __utac_acc__Specification5_spec__3_~tmp___0~0#1;havoc __utac_acc__Specification5_spec__3_~tmp~4#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~0#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~4#1;havoc getWaterLevel_~retValue_acc~4#1;getWaterLevel_~retValue_acc~4#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~4#1; 110#L281true __utac_acc__Specification5_spec__3_#t~ret35#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~4#1 := __utac_acc__Specification5_spec__3_#t~ret35#1;havoc __utac_acc__Specification5_spec__3_#t~ret35#1; 12#L703true assume !(2 != __utac_acc__Specification5_spec__3_~tmp~4#1); 30#L703-1true assume { :end_inline___utac_acc__Specification5_spec__3 } true; 128#L819true assume { :end_inline_timeShift } true; 93#L735-2true [2022-07-14 16:00:04,170 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 16:00:04,170 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 1 times [2022-07-14 16:00:04,176 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 16:00:04,176 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1970688308] [2022-07-14 16:00:04,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 16:00:04,177 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 16:00:04,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-14 16:00:04,260 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-14 16:00:04,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-14 16:00:04,316 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-14 16:00:04,317 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 16:00:04,318 INFO L85 PathProgramCache]: Analyzing trace with hash -1354186772, now seen corresponding path program 1 times [2022-07-14 16:00:04,318 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 16:00:04,318 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [340989168] [2022-07-14 16:00:04,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 16:00:04,318 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 16:00:04,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-14 16:00:04,323 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-14 16:00:04,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-14 16:00:04,329 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-14 16:00:04,329 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 16:00:04,330 INFO L85 PathProgramCache]: Analyzing trace with hash 1601428117, now seen corresponding path program 1 times [2022-07-14 16:00:04,330 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 16:00:04,330 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1753426855] [2022-07-14 16:00:04,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 16:00:04,330 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 16:00:04,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 16:00:04,418 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 16:00:04,419 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 16:00:04,420 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1753426855] [2022-07-14 16:00:04,420 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1753426855] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 16:00:04,420 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 16:00:04,421 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-14 16:00:04,421 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1077738424] [2022-07-14 16:00:04,421 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 16:00:04,549 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 16:00:04,567 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-14 16:00:04,568 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-07-14 16:00:04,570 INFO L87 Difference]: Start difference. First operand has 196 states, 195 states have (on average 1.358974358974359) internal successors, (265), 195 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 has 6 states, 6 states have (on average 4.333333333333333) internal successors, (26), 5 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 16:00:04,628 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 16:00:04,630 INFO L93 Difference]: Finished difference Result 193 states and 251 transitions. [2022-07-14 16:00:04,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-14 16:00:04,634 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 193 states and 251 transitions. [2022-07-14 16:00:04,641 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 122 [2022-07-14 16:00:04,645 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 193 states to 183 states and 241 transitions. [2022-07-14 16:00:04,645 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 183 [2022-07-14 16:00:04,646 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 183 [2022-07-14 16:00:04,647 INFO L73 IsDeterministic]: Start isDeterministic. Operand 183 states and 241 transitions. [2022-07-14 16:00:04,647 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-14 16:00:04,647 INFO L369 hiAutomatonCegarLoop]: Abstraction has 183 states and 241 transitions. [2022-07-14 16:00:04,658 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 183 states and 241 transitions. [2022-07-14 16:00:04,667 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 183 to 183. [2022-07-14 16:00:04,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 183 states, 183 states have (on average 1.3169398907103824) internal successors, (241), 182 states have internal predecessors, (241), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 16:00:04,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 183 states to 183 states and 241 transitions. [2022-07-14 16:00:04,673 INFO L392 hiAutomatonCegarLoop]: Abstraction has 183 states and 241 transitions. [2022-07-14 16:00:04,673 INFO L374 stractBuchiCegarLoop]: Abstraction has 183 states and 241 transitions. [2022-07-14 16:00:04,673 INFO L287 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2022-07-14 16:00:04,673 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 183 states and 241 transitions. [2022-07-14 16:00:04,675 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 122 [2022-07-14 16:00:04,675 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-14 16:00:04,675 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-14 16:00:04,675 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 16:00:04,676 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 16:00:04,676 INFO L752 eck$LassoCheckResult]: Stem: 588#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(13, 4);call #Ultimate.allocInit(7, 5);call write~init~int(44, 5, 0, 1);call write~init~int(77, 5, 1, 1);call write~init~int(101, 5, 2, 1);call write~init~int(116, 5, 3, 1);call write~init~int(104, 5, 4, 1);call write~init~int(58, 5, 5, 1);call write~init~int(0, 5, 6, 1);call #Ultimate.allocInit(5, 6);call write~init~int(67, 6, 0, 1);call write~init~int(82, 6, 1, 1);call write~init~int(73, 6, 2, 1);call write~init~int(84, 6, 3, 1);call write~init~int(0, 6, 4, 1);call #Ultimate.allocInit(3, 7);call write~init~int(79, 7, 0, 1);call write~init~int(75, 7, 1, 1);call write~init~int(0, 7, 2, 1);call #Ultimate.allocInit(2, 8);call write~init~int(41, 8, 0, 1);call write~init~int(0, 8, 1, 1);call #Ultimate.allocInit(30, 9);call #Ultimate.allocInit(9, 10);call #Ultimate.allocInit(21, 11);call #Ultimate.allocInit(30, 12);call #Ultimate.allocInit(9, 13);call #Ultimate.allocInit(21, 14);call #Ultimate.allocInit(30, 15);call #Ultimate.allocInit(9, 16);call #Ultimate.allocInit(25, 17);call #Ultimate.allocInit(30, 18);call #Ultimate.allocInit(9, 19);call #Ultimate.allocInit(25, 20);call #Ultimate.allocInit(13, 21);call #Ultimate.allocInit(3, 22);call write~init~int(79, 22, 0, 1);call write~init~int(110, 22, 1, 1);call write~init~int(0, 22, 2, 1);call #Ultimate.allocInit(4, 23);call write~init~int(79, 23, 0, 1);call write~init~int(102, 23, 1, 1);call write~init~int(102, 23, 2, 1);call write~init~int(0, 23, 3, 1);call #Ultimate.allocInit(7, 24);call write~init~int(44, 24, 0, 1);call write~init~int(80, 24, 1, 1);call write~init~int(117, 24, 2, 1);call write~init~int(109, 24, 3, 1);call write~init~int(112, 24, 4, 1);call write~init~int(58, 24, 5, 1);call write~init~int(0, 24, 6, 1);call #Ultimate.allocInit(3, 25);call write~init~int(79, 25, 0, 1);call write~init~int(110, 25, 1, 1);call write~init~int(0, 25, 2, 1);call #Ultimate.allocInit(4, 26);call write~init~int(79, 26, 0, 1);call write~init~int(102, 26, 1, 1);call write~init~int(102, 26, 2, 1);call write~init~int(0, 26, 3, 1);call #Ultimate.allocInit(3, 27);call write~init~int(41, 27, 0, 1);call write~init~int(32, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(10, 28, 0, 1);call write~init~int(0, 28, 1, 1);~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~switchedOnBeforeTS~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1; 500#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret5#1, main_~retValue_acc~2#1, main_~tmp~0#1;havoc main_~retValue_acc~2#1;havoc main_~tmp~0#1;assume { :begin_inline_select_helpers } true; 501#L84 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 548#L77 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; 549#L92 main_#t~ret5#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~0#1 := main_#t~ret5#1;havoc main_#t~ret5#1; 526#L186 assume 0 != main_~tmp~0#1;assume { :begin_inline_setup } true; 527#L160 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0; 535#L682 assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet37#1, test_#t~nondet38#1, test_#t~nondet39#1, test_#t~nondet40#1, test_~splverifierCounter~0#1, test_~tmp~5#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~5#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 507#L735-2 [2022-07-14 16:00:04,676 INFO L754 eck$LassoCheckResult]: Loop: 507#L735-2 assume !false; 492#L736 assume test_~splverifierCounter~0#1 < 4; 476#L737 test_~tmp~5#1 := test_#t~nondet37#1;havoc test_#t~nondet37#1; 477#L745 assume !(0 != test_~tmp~5#1); 543#L745-2 test_~tmp___0~1#1 := test_#t~nondet38#1;havoc test_#t~nondet38#1; 468#L755 assume !(0 != test_~tmp___0~1#1); 470#L755-2 test_~tmp___2~0#1 := test_#t~nondet39#1;havoc test_#t~nondet39#1; 559#L765 assume 0 != test_~tmp___2~0#1; 524#L771-2 assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret34#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~11#1;havoc isPumpRunning_~retValue_acc~11#1;isPumpRunning_~retValue_acc~11#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~11#1; 424#L931 __utac_acc__Specification5_spec__2_#t~ret34#1 := isPumpRunning_#res#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret34#1;havoc __utac_acc__Specification5_spec__2_#t~ret34#1; 425#L692 assume { :end_inline___utac_acc__Specification5_spec__2 } true; 494#L802 assume !(0 != ~pumpRunning~0); 514#L802-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret42#1, processEnvironment_~tmp~7#1;havoc processEnvironment_~tmp~7#1; 561#L860 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret41#1, processEnvironment__wrappee__highWaterSensor_~tmp~6#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~6#1; 583#L834-2 assume !(0 == ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true; 487#L826-3 assume { :end_inline_processEnvironment__wrappee__base } true; 410#L834-3 assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 411#L860-1 assume { :end_inline_processEnvironment } true; 578#L809-1 assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret35#1, __utac_acc__Specification5_spec__3_#t~ret36#1, __utac_acc__Specification5_spec__3_~tmp~4#1, __utac_acc__Specification5_spec__3_~tmp___0~0#1;havoc __utac_acc__Specification5_spec__3_~tmp~4#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~0#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~4#1;havoc getWaterLevel_~retValue_acc~4#1;getWaterLevel_~retValue_acc~4#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~4#1; 455#L281 __utac_acc__Specification5_spec__3_#t~ret35#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~4#1 := __utac_acc__Specification5_spec__3_#t~ret35#1;havoc __utac_acc__Specification5_spec__3_#t~ret35#1; 441#L703 assume !(2 != __utac_acc__Specification5_spec__3_~tmp~4#1); 443#L703-1 assume { :end_inline___utac_acc__Specification5_spec__3 } true; 506#L819 assume { :end_inline_timeShift } true; 507#L735-2 [2022-07-14 16:00:04,676 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 16:00:04,676 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 2 times [2022-07-14 16:00:04,676 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 16:00:04,681 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [869310830] [2022-07-14 16:00:04,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 16:00:04,682 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 16:00:04,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-14 16:00:04,698 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-14 16:00:04,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-14 16:00:04,723 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-14 16:00:04,724 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 16:00:04,724 INFO L85 PathProgramCache]: Analyzing trace with hash 909614489, now seen corresponding path program 1 times [2022-07-14 16:00:04,724 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 16:00:04,724 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1729972372] [2022-07-14 16:00:04,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 16:00:04,725 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 16:00:04,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 16:00:04,740 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 16:00:04,741 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 16:00:04,741 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1729972372] [2022-07-14 16:00:04,741 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1729972372] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 16:00:04,741 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 16:00:04,741 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-14 16:00:04,741 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1271242677] [2022-07-14 16:00:04,742 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 16:00:04,742 INFO L769 eck$LassoCheckResult]: loop already infeasible [2022-07-14 16:00:04,743 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 16:00:04,743 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 16:00:04,743 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 16:00:04,744 INFO L87 Difference]: Start difference. First operand 183 states and 241 transitions. cyclomatic complexity: 60 Second operand has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 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) [2022-07-14 16:00:04,825 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 16:00:04,825 INFO L93 Difference]: Finished difference Result 253 states and 321 transitions. [2022-07-14 16:00:04,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 16:00:04,826 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 253 states and 321 transitions. [2022-07-14 16:00:04,831 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 174 [2022-07-14 16:00:04,836 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 253 states to 253 states and 321 transitions. [2022-07-14 16:00:04,836 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 253 [2022-07-14 16:00:04,837 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 253 [2022-07-14 16:00:04,837 INFO L73 IsDeterministic]: Start isDeterministic. Operand 253 states and 321 transitions. [2022-07-14 16:00:04,843 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-14 16:00:04,843 INFO L369 hiAutomatonCegarLoop]: Abstraction has 253 states and 321 transitions. [2022-07-14 16:00:04,844 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 253 states and 321 transitions. [2022-07-14 16:00:04,852 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 253 to 253. [2022-07-14 16:00:04,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 253 states, 253 states have (on average 1.2687747035573123) internal successors, (321), 252 states have internal predecessors, (321), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 16:00:04,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 253 states to 253 states and 321 transitions. [2022-07-14 16:00:04,853 INFO L392 hiAutomatonCegarLoop]: Abstraction has 253 states and 321 transitions. [2022-07-14 16:00:04,853 INFO L374 stractBuchiCegarLoop]: Abstraction has 253 states and 321 transitions. [2022-07-14 16:00:04,853 INFO L287 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2022-07-14 16:00:04,854 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 253 states and 321 transitions. [2022-07-14 16:00:04,855 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 174 [2022-07-14 16:00:04,855 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-14 16:00:04,855 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-14 16:00:04,855 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 16:00:04,856 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 16:00:04,856 INFO L752 eck$LassoCheckResult]: Stem: 1039#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(13, 4);call #Ultimate.allocInit(7, 5);call write~init~int(44, 5, 0, 1);call write~init~int(77, 5, 1, 1);call write~init~int(101, 5, 2, 1);call write~init~int(116, 5, 3, 1);call write~init~int(104, 5, 4, 1);call write~init~int(58, 5, 5, 1);call write~init~int(0, 5, 6, 1);call #Ultimate.allocInit(5, 6);call write~init~int(67, 6, 0, 1);call write~init~int(82, 6, 1, 1);call write~init~int(73, 6, 2, 1);call write~init~int(84, 6, 3, 1);call write~init~int(0, 6, 4, 1);call #Ultimate.allocInit(3, 7);call write~init~int(79, 7, 0, 1);call write~init~int(75, 7, 1, 1);call write~init~int(0, 7, 2, 1);call #Ultimate.allocInit(2, 8);call write~init~int(41, 8, 0, 1);call write~init~int(0, 8, 1, 1);call #Ultimate.allocInit(30, 9);call #Ultimate.allocInit(9, 10);call #Ultimate.allocInit(21, 11);call #Ultimate.allocInit(30, 12);call #Ultimate.allocInit(9, 13);call #Ultimate.allocInit(21, 14);call #Ultimate.allocInit(30, 15);call #Ultimate.allocInit(9, 16);call #Ultimate.allocInit(25, 17);call #Ultimate.allocInit(30, 18);call #Ultimate.allocInit(9, 19);call #Ultimate.allocInit(25, 20);call #Ultimate.allocInit(13, 21);call #Ultimate.allocInit(3, 22);call write~init~int(79, 22, 0, 1);call write~init~int(110, 22, 1, 1);call write~init~int(0, 22, 2, 1);call #Ultimate.allocInit(4, 23);call write~init~int(79, 23, 0, 1);call write~init~int(102, 23, 1, 1);call write~init~int(102, 23, 2, 1);call write~init~int(0, 23, 3, 1);call #Ultimate.allocInit(7, 24);call write~init~int(44, 24, 0, 1);call write~init~int(80, 24, 1, 1);call write~init~int(117, 24, 2, 1);call write~init~int(109, 24, 3, 1);call write~init~int(112, 24, 4, 1);call write~init~int(58, 24, 5, 1);call write~init~int(0, 24, 6, 1);call #Ultimate.allocInit(3, 25);call write~init~int(79, 25, 0, 1);call write~init~int(110, 25, 1, 1);call write~init~int(0, 25, 2, 1);call #Ultimate.allocInit(4, 26);call write~init~int(79, 26, 0, 1);call write~init~int(102, 26, 1, 1);call write~init~int(102, 26, 2, 1);call write~init~int(0, 26, 3, 1);call #Ultimate.allocInit(3, 27);call write~init~int(41, 27, 0, 1);call write~init~int(32, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(10, 28, 0, 1);call write~init~int(0, 28, 1, 1);~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~switchedOnBeforeTS~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1; 940#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret5#1, main_~retValue_acc~2#1, main_~tmp~0#1;havoc main_~retValue_acc~2#1;havoc main_~tmp~0#1;assume { :begin_inline_select_helpers } true; 941#L84 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 991#L77 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; 992#L92 main_#t~ret5#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~0#1 := main_#t~ret5#1;havoc main_#t~ret5#1; 967#L186 assume 0 != main_~tmp~0#1;assume { :begin_inline_setup } true; 968#L160 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0; 976#L682 assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet37#1, test_#t~nondet38#1, test_#t~nondet39#1, test_#t~nondet40#1, test_~splverifierCounter~0#1, test_~tmp~5#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~5#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 947#L735-2 [2022-07-14 16:00:04,856 INFO L754 eck$LassoCheckResult]: Loop: 947#L735-2 assume !false; 932#L736 assume test_~splverifierCounter~0#1 < 4; 916#L737 test_~tmp~5#1 := test_#t~nondet37#1;havoc test_#t~nondet37#1; 917#L745 assume !(0 != test_~tmp~5#1); 985#L745-2 test_~tmp___0~1#1 := test_#t~nondet38#1;havoc test_#t~nondet38#1; 909#L755 assume !(0 != test_~tmp___0~1#1); 911#L755-2 test_~tmp___2~0#1 := test_#t~nondet39#1;havoc test_#t~nondet39#1; 1006#L765 assume 0 != test_~tmp___2~0#1; 965#L771-2 assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret34#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~11#1;havoc isPumpRunning_~retValue_acc~11#1;isPumpRunning_~retValue_acc~11#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~11#1; 861#L931 __utac_acc__Specification5_spec__2_#t~ret34#1 := isPumpRunning_#res#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret34#1;havoc __utac_acc__Specification5_spec__2_#t~ret34#1; 862#L692 assume { :end_inline___utac_acc__Specification5_spec__2 } true; 934#L802 assume !(0 != ~pumpRunning~0); 954#L802-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret42#1, processEnvironment_~tmp~7#1;havoc processEnvironment_~tmp~7#1; 1008#L860 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret41#1, processEnvironment__wrappee__highWaterSensor_~tmp~6#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~6#1; 1030#L834-2 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret53#1, isHighWaterLevel_~retValue_acc~12#1, isHighWaterLevel_~tmp~9#1, isHighWaterLevel_~tmp___0~2#1;havoc isHighWaterLevel_~retValue_acc~12#1;havoc isHighWaterLevel_~tmp~9#1;havoc isHighWaterLevel_~tmp___0~2#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~5#1;havoc isHighWaterSensorDry_~retValue_acc~5#1; 854#L289-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~5#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~5#1; 855#L294-1 isHighWaterLevel_#t~ret53#1 := isHighWaterSensorDry_#res#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~9#1 := isHighWaterLevel_#t~ret53#1;havoc isHighWaterLevel_#t~ret53#1; 975#L980-3 assume 0 != isHighWaterLevel_~tmp~9#1;isHighWaterLevel_~tmp___0~2#1 := 0; 912#L980-5 isHighWaterLevel_~retValue_acc~12#1 := isHighWaterLevel_~tmp___0~2#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~12#1; 913#L986-1 processEnvironment__wrappee__highWaterSensor_#t~ret41#1 := isHighWaterLevel_#res#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~6#1 := processEnvironment__wrappee__highWaterSensor_#t~ret41#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret41#1; 1004#L838-3 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~6#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 969#L826-2 assume { :end_inline_processEnvironment__wrappee__base } true; 970#L834-3 assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 1038#L860-1 assume { :end_inline_processEnvironment } true; 1101#L809-1 assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret35#1, __utac_acc__Specification5_spec__3_#t~ret36#1, __utac_acc__Specification5_spec__3_~tmp~4#1, __utac_acc__Specification5_spec__3_~tmp___0~0#1;havoc __utac_acc__Specification5_spec__3_~tmp~4#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~0#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~4#1;havoc getWaterLevel_~retValue_acc~4#1;getWaterLevel_~retValue_acc~4#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~4#1; 1100#L281 __utac_acc__Specification5_spec__3_#t~ret35#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~4#1 := __utac_acc__Specification5_spec__3_#t~ret35#1;havoc __utac_acc__Specification5_spec__3_#t~ret35#1; 881#L703 assume !(2 != __utac_acc__Specification5_spec__3_~tmp~4#1); 883#L703-1 assume { :end_inline___utac_acc__Specification5_spec__3 } true; 946#L819 assume { :end_inline_timeShift } true; 947#L735-2 [2022-07-14 16:00:04,857 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 16:00:04,857 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 3 times [2022-07-14 16:00:04,857 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 16:00:04,857 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1213378917] [2022-07-14 16:00:04,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 16:00:04,857 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 16:00:04,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-14 16:00:04,868 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-14 16:00:04,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-14 16:00:04,879 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-14 16:00:04,879 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 16:00:04,879 INFO L85 PathProgramCache]: Analyzing trace with hash -92718639, now seen corresponding path program 1 times [2022-07-14 16:00:04,879 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 16:00:04,880 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2138754155] [2022-07-14 16:00:04,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 16:00:04,880 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 16:00:04,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 16:00:04,908 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 16:00:04,909 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 16:00:04,909 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2138754155] [2022-07-14 16:00:04,909 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2138754155] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 16:00:04,909 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 16:00:04,909 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-14 16:00:04,910 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1571858597] [2022-07-14 16:00:04,910 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 16:00:04,910 INFO L769 eck$LassoCheckResult]: loop already infeasible [2022-07-14 16:00:04,910 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 16:00:04,911 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-14 16:00:04,911 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-14 16:00:04,911 INFO L87 Difference]: Start difference. First operand 253 states and 321 transitions. cyclomatic complexity: 70 Second operand has 5 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 16:00:05,052 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 16:00:05,052 INFO L93 Difference]: Finished difference Result 1179 states and 1490 transitions. [2022-07-14 16:00:05,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-14 16:00:05,053 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 1179 states and 1490 transitions. [2022-07-14 16:00:05,059 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 805 [2022-07-14 16:00:05,063 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 1179 states to 1179 states and 1490 transitions. [2022-07-14 16:00:05,063 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 1179 [2022-07-14 16:00:05,064 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 1179 [2022-07-14 16:00:05,064 INFO L73 IsDeterministic]: Start isDeterministic. Operand 1179 states and 1490 transitions. [2022-07-14 16:00:05,065 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-14 16:00:05,065 INFO L369 hiAutomatonCegarLoop]: Abstraction has 1179 states and 1490 transitions. [2022-07-14 16:00:05,065 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1179 states and 1490 transitions. [2022-07-14 16:00:05,077 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1179 to 495. [2022-07-14 16:00:05,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 495 states, 495 states have (on average 1.2565656565656567) internal successors, (622), 494 states have internal predecessors, (622), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 16:00:05,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 495 states to 495 states and 622 transitions. [2022-07-14 16:00:05,079 INFO L392 hiAutomatonCegarLoop]: Abstraction has 495 states and 622 transitions. [2022-07-14 16:00:05,079 INFO L374 stractBuchiCegarLoop]: Abstraction has 495 states and 622 transitions. [2022-07-14 16:00:05,079 INFO L287 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2022-07-14 16:00:05,079 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 495 states and 622 transitions. [2022-07-14 16:00:05,081 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 346 [2022-07-14 16:00:05,082 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-14 16:00:05,082 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-14 16:00:05,082 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 16:00:05,082 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 16:00:05,082 INFO L752 eck$LassoCheckResult]: Stem: 2517#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(13, 4);call #Ultimate.allocInit(7, 5);call write~init~int(44, 5, 0, 1);call write~init~int(77, 5, 1, 1);call write~init~int(101, 5, 2, 1);call write~init~int(116, 5, 3, 1);call write~init~int(104, 5, 4, 1);call write~init~int(58, 5, 5, 1);call write~init~int(0, 5, 6, 1);call #Ultimate.allocInit(5, 6);call write~init~int(67, 6, 0, 1);call write~init~int(82, 6, 1, 1);call write~init~int(73, 6, 2, 1);call write~init~int(84, 6, 3, 1);call write~init~int(0, 6, 4, 1);call #Ultimate.allocInit(3, 7);call write~init~int(79, 7, 0, 1);call write~init~int(75, 7, 1, 1);call write~init~int(0, 7, 2, 1);call #Ultimate.allocInit(2, 8);call write~init~int(41, 8, 0, 1);call write~init~int(0, 8, 1, 1);call #Ultimate.allocInit(30, 9);call #Ultimate.allocInit(9, 10);call #Ultimate.allocInit(21, 11);call #Ultimate.allocInit(30, 12);call #Ultimate.allocInit(9, 13);call #Ultimate.allocInit(21, 14);call #Ultimate.allocInit(30, 15);call #Ultimate.allocInit(9, 16);call #Ultimate.allocInit(25, 17);call #Ultimate.allocInit(30, 18);call #Ultimate.allocInit(9, 19);call #Ultimate.allocInit(25, 20);call #Ultimate.allocInit(13, 21);call #Ultimate.allocInit(3, 22);call write~init~int(79, 22, 0, 1);call write~init~int(110, 22, 1, 1);call write~init~int(0, 22, 2, 1);call #Ultimate.allocInit(4, 23);call write~init~int(79, 23, 0, 1);call write~init~int(102, 23, 1, 1);call write~init~int(102, 23, 2, 1);call write~init~int(0, 23, 3, 1);call #Ultimate.allocInit(7, 24);call write~init~int(44, 24, 0, 1);call write~init~int(80, 24, 1, 1);call write~init~int(117, 24, 2, 1);call write~init~int(109, 24, 3, 1);call write~init~int(112, 24, 4, 1);call write~init~int(58, 24, 5, 1);call write~init~int(0, 24, 6, 1);call #Ultimate.allocInit(3, 25);call write~init~int(79, 25, 0, 1);call write~init~int(110, 25, 1, 1);call write~init~int(0, 25, 2, 1);call #Ultimate.allocInit(4, 26);call write~init~int(79, 26, 0, 1);call write~init~int(102, 26, 1, 1);call write~init~int(102, 26, 2, 1);call write~init~int(0, 26, 3, 1);call #Ultimate.allocInit(3, 27);call write~init~int(41, 27, 0, 1);call write~init~int(32, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(10, 28, 0, 1);call write~init~int(0, 28, 1, 1);~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~switchedOnBeforeTS~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1; 2396#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret5#1, main_~retValue_acc~2#1, main_~tmp~0#1;havoc main_~retValue_acc~2#1;havoc main_~tmp~0#1;assume { :begin_inline_select_helpers } true; 2397#L84 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 2451#L77 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; 2452#L92 main_#t~ret5#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~0#1 := main_#t~ret5#1;havoc main_#t~ret5#1; 2426#L186 assume 0 != main_~tmp~0#1;assume { :begin_inline_setup } true; 2427#L160 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0; 2435#L682 assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet37#1, test_#t~nondet38#1, test_#t~nondet39#1, test_#t~nondet40#1, test_~splverifierCounter~0#1, test_~tmp~5#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~5#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 2405#L735-2 [2022-07-14 16:00:05,082 INFO L754 eck$LassoCheckResult]: Loop: 2405#L735-2 assume !false; 2387#L736 assume test_~splverifierCounter~0#1 < 4; 2388#L737 test_~tmp~5#1 := test_#t~nondet37#1;havoc test_#t~nondet37#1; 2793#L745 assume !(0 != test_~tmp~5#1); 2791#L745-2 test_~tmp___0~1#1 := test_#t~nondet38#1;havoc test_#t~nondet38#1; 2789#L755 assume !(0 != test_~tmp___0~1#1); 2787#L755-2 test_~tmp___2~0#1 := test_#t~nondet39#1;havoc test_#t~nondet39#1; 2785#L765 assume 0 != test_~tmp___2~0#1; 2784#L771-2 assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret34#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~11#1;havoc isPumpRunning_~retValue_acc~11#1;isPumpRunning_~retValue_acc~11#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~11#1; 2783#L931 __utac_acc__Specification5_spec__2_#t~ret34#1 := isPumpRunning_#res#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret34#1;havoc __utac_acc__Specification5_spec__2_#t~ret34#1; 2782#L692 assume { :end_inline___utac_acc__Specification5_spec__2 } true; 2412#L802 assume !(0 != ~pumpRunning~0); 2413#L802-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret42#1, processEnvironment_~tmp~7#1;havoc processEnvironment_~tmp~7#1; 2470#L860 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret41#1, processEnvironment__wrappee__highWaterSensor_~tmp~6#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~6#1; 2649#L834-2 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret53#1, isHighWaterLevel_~retValue_acc~12#1, isHighWaterLevel_~tmp~9#1, isHighWaterLevel_~tmp___0~2#1;havoc isHighWaterLevel_~retValue_acc~12#1;havoc isHighWaterLevel_~tmp~9#1;havoc isHighWaterLevel_~tmp___0~2#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~5#1;havoc isHighWaterSensorDry_~retValue_acc~5#1; 2647#L289-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~5#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~5#1; 2306#L294-1 isHighWaterLevel_#t~ret53#1 := isHighWaterSensorDry_#res#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~9#1 := isHighWaterLevel_#t~ret53#1;havoc isHighWaterLevel_#t~ret53#1; 2644#L980-3 assume 0 != isHighWaterLevel_~tmp~9#1;isHighWaterLevel_~tmp___0~2#1 := 0; 2640#L980-5 isHighWaterLevel_~retValue_acc~12#1 := isHighWaterLevel_~tmp___0~2#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~12#1; 2634#L986-1 processEnvironment__wrappee__highWaterSensor_#t~ret41#1 := isHighWaterLevel_#res#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~6#1 := processEnvironment__wrappee__highWaterSensor_#t~ret41#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret41#1; 2628#L838-3 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~6#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 2428#L826-2 assume { :end_inline_processEnvironment__wrappee__base } true; 2300#L834-3 assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 2301#L860-1 assume { :end_inline_processEnvironment } true; 2490#L809-1 assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret35#1, __utac_acc__Specification5_spec__3_#t~ret36#1, __utac_acc__Specification5_spec__3_~tmp~4#1, __utac_acc__Specification5_spec__3_~tmp___0~0#1;havoc __utac_acc__Specification5_spec__3_~tmp~4#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~0#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~4#1;havoc getWaterLevel_~retValue_acc~4#1;getWaterLevel_~retValue_acc~4#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~4#1; 2349#L281 __utac_acc__Specification5_spec__3_#t~ret35#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~4#1 := __utac_acc__Specification5_spec__3_#t~ret35#1;havoc __utac_acc__Specification5_spec__3_#t~ret35#1; 2350#L703 assume 2 != __utac_acc__Specification5_spec__3_~tmp~4#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~11#1;havoc isPumpRunning_~retValue_acc~11#1;isPumpRunning_~retValue_acc~11#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~11#1; 2523#L931-1 __utac_acc__Specification5_spec__3_#t~ret36#1 := isPumpRunning_#res#1;assume { :end_inline_isPumpRunning } true;__utac_acc__Specification5_spec__3_~tmp___0~0#1 := __utac_acc__Specification5_spec__3_#t~ret36#1;havoc __utac_acc__Specification5_spec__3_#t~ret36#1; 2524#L707 assume !(0 != __utac_acc__Specification5_spec__3_~tmp___0~0#1); 2777#L703-1 assume { :end_inline___utac_acc__Specification5_spec__3 } true; 2404#L819 assume { :end_inline_timeShift } true; 2405#L735-2 [2022-07-14 16:00:05,083 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 16:00:05,083 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 4 times [2022-07-14 16:00:05,083 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 16:00:05,083 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1576756039] [2022-07-14 16:00:05,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 16:00:05,083 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 16:00:05,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-14 16:00:05,090 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-14 16:00:05,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-14 16:00:05,099 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-14 16:00:05,099 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 16:00:05,099 INFO L85 PathProgramCache]: Analyzing trace with hash 1072605420, now seen corresponding path program 1 times [2022-07-14 16:00:05,099 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 16:00:05,099 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1887549716] [2022-07-14 16:00:05,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 16:00:05,100 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 16:00:05,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-14 16:00:05,113 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-14 16:00:05,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-14 16:00:05,117 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-14 16:00:05,118 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 16:00:05,118 INFO L85 PathProgramCache]: Analyzing trace with hash 260565219, now seen corresponding path program 1 times [2022-07-14 16:00:05,118 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 16:00:05,118 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1410328080] [2022-07-14 16:00:05,118 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 16:00:05,118 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 16:00:05,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-14 16:00:05,132 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-14 16:00:05,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-14 16:00:05,155 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-14 16:00:07,726 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 14.07 04:00:07 BoogieIcfgContainer [2022-07-14 16:00:07,726 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-07-14 16:00:07,727 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-14 16:00:07,727 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-14 16:00:07,727 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-14 16:00:07,728 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.07 04:00:04" (3/4) ... [2022-07-14 16:00:07,729 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2022-07-14 16:00:07,772 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-07-14 16:00:07,772 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-14 16:00:07,772 INFO L158 Benchmark]: Toolchain (without parser) took 4886.85ms. Allocated memory was 96.5MB in the beginning and 174.1MB in the end (delta: 77.6MB). Free memory was 56.8MB in the beginning and 96.8MB in the end (delta: -40.0MB). Peak memory consumption was 38.6MB. Max. memory is 16.1GB. [2022-07-14 16:00:07,773 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 96.5MB. Free memory is still 74.6MB. There was no memory consumed. Max. memory is 16.1GB. [2022-07-14 16:00:07,773 INFO L158 Benchmark]: CACSL2BoogieTranslator took 418.57ms. Allocated memory was 96.5MB in the beginning and 130.0MB in the end (delta: 33.6MB). Free memory was 56.7MB in the beginning and 101.9MB in the end (delta: -45.3MB). Peak memory consumption was 19.0MB. Max. memory is 16.1GB. [2022-07-14 16:00:07,773 INFO L158 Benchmark]: Boogie Procedure Inliner took 61.32ms. Allocated memory is still 130.0MB. Free memory was 101.9MB in the beginning and 98.4MB in the end (delta: 3.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-07-14 16:00:07,774 INFO L158 Benchmark]: Boogie Preprocessor took 48.89ms. Allocated memory is still 130.0MB. Free memory was 98.4MB in the beginning and 95.6MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-14 16:00:07,774 INFO L158 Benchmark]: RCFGBuilder took 631.90ms. Allocated memory is still 130.0MB. Free memory was 95.6MB in the beginning and 71.7MB in the end (delta: 24.0MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2022-07-14 16:00:07,774 INFO L158 Benchmark]: BuchiAutomizer took 3675.74ms. Allocated memory was 130.0MB in the beginning and 174.1MB in the end (delta: 44.0MB). Free memory was 71.1MB in the beginning and 99.9MB in the end (delta: -28.8MB). Peak memory consumption was 69.9MB. Max. memory is 16.1GB. [2022-07-14 16:00:07,775 INFO L158 Benchmark]: Witness Printer took 45.01ms. Allocated memory is still 174.1MB. Free memory was 99.9MB in the beginning and 96.8MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-14 16:00:07,776 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 96.5MB. Free memory is still 74.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 418.57ms. Allocated memory was 96.5MB in the beginning and 130.0MB in the end (delta: 33.6MB). Free memory was 56.7MB in the beginning and 101.9MB in the end (delta: -45.3MB). Peak memory consumption was 19.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 61.32ms. Allocated memory is still 130.0MB. Free memory was 101.9MB in the beginning and 98.4MB in the end (delta: 3.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 48.89ms. Allocated memory is still 130.0MB. Free memory was 98.4MB in the beginning and 95.6MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 631.90ms. Allocated memory is still 130.0MB. Free memory was 95.6MB in the beginning and 71.7MB in the end (delta: 24.0MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * BuchiAutomizer took 3675.74ms. Allocated memory was 130.0MB in the beginning and 174.1MB in the end (delta: 44.0MB). Free memory was 71.1MB in the beginning and 99.9MB in the end (delta: -28.8MB). Peak memory consumption was 69.9MB. Max. memory is 16.1GB. * Witness Printer took 45.01ms. Allocated memory is still 174.1MB. Free memory was 99.9MB in the beginning and 96.8MB 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 3 terminating modules (3 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.3 modules have a trivial ranking function, the largest among these consists of 6 locations. The remainder module has 495 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 3.6s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 3.1s. Construction of modules took 0.1s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 0. Minimization of det autom 3. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 684 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2151 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2151 mSDsluCounter, 2084 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1220 mSDsCounter, 54 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 193 IncrementalHoareTripleChecker+Invalid, 247 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 54 mSolverCounterUnsat, 864 mSDtfsCounter, 193 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI2 SFLT0 conc1 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 735]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=1} State at position 1 is {splverifierCounter=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5fc186f=0, head=0, tmp___0=0, pumpRunning=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@62345049=0, NULL=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3815848=0, tmp___0=0, retValue_acc=0, tmp=0, methaneLevelCritical=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@123a4ea9=0, retValue_acc=0, retValue_acc=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@85b4fba=0, retValue_acc=0, retValue_acc=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@194ee814=0, \result=1, \result=1, tmp=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@222b9d24=29, tmp=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@431390a4=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@51ccef6a=0, tmp___2=29, \result=0, cleanupTimeShifts=4, switchedOnBeforeTS=0, tmp=1, \result=0, tmp___0=0, head=0, \result=1, tmp___1=0, NULL=0, retValue_acc=1, waterLevel=1, systemActive=1, tmp=0, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1d91c20a=0, tmp=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2c91e2ea=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 735]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L97] int cleanupTimeShifts = 4; [L206] int waterLevel = 1; [L207] int methaneLevelCritical = 0; [L478] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L676] int switchedOnBeforeTS ; [L792] int pumpRunning = 0; [L793] int systemActive = 1; [L177] int retValue_acc ; [L178] int tmp ; [L182] FCALL select_helpers() [L183] FCALL select_features() [L184] CALL, EXPR valid_product() [L88] int retValue_acc ; [L91] retValue_acc = 1 [L92] return (retValue_acc); [L184] RET, EXPR valid_product() [L184] tmp = valid_product() [L186] COND TRUE \read(tmp) [L188] FCALL setup() [L189] CALL runTest() [L170] CALL __utac_acc__Specification5_spec__1() [L681] switchedOnBeforeTS = 0 [L170] RET __utac_acc__Specification5_spec__1() [L171] CALL test() [L726] int splverifierCounter ; [L727] int tmp ; [L728] int tmp___0 ; [L729] int tmp___1 ; [L730] int tmp___2 ; [L733] splverifierCounter = 0 Loop: [L735] COND TRUE 1 [L737] COND TRUE splverifierCounter < 4 [L743] tmp = __VERIFIER_nondet_int() [L745] COND FALSE !(\read(tmp)) [L753] tmp___0 = __VERIFIER_nondet_int() [L755] COND FALSE !(\read(tmp___0)) [L763] tmp___2 = __VERIFIER_nondet_int() [L765] COND TRUE \read(tmp___2) [L778] CALL timeShift() [L800] CALL __utac_acc__Specification5_spec__2() [L690] CALL, EXPR isPumpRunning() [L927] int retValue_acc ; [L930] retValue_acc = pumpRunning [L931] return (retValue_acc); [L690] RET, EXPR isPumpRunning() [L690] switchedOnBeforeTS = isPumpRunning() [L800] RET __utac_acc__Specification5_spec__2() [L802] COND FALSE !(\read(pumpRunning)) [L809] COND TRUE \read(systemActive) [L811] CALL processEnvironment() [L857] int tmp ; [L860] COND FALSE !(\read(pumpRunning)) [L875] CALL processEnvironment__wrappee__highWaterSensor() [L831] int tmp ; [L834] COND TRUE ! pumpRunning [L836] CALL, EXPR isHighWaterLevel() [L972] int retValue_acc ; [L973] int tmp ; [L974] int tmp___0 ; [L978] CALL, EXPR isHighWaterSensorDry() [L286] int retValue_acc ; [L289] COND TRUE waterLevel < 2 [L290] retValue_acc = 1 [L291] return (retValue_acc); [L978] RET, EXPR isHighWaterSensorDry() [L978] tmp = isHighWaterSensorDry() [L980] COND TRUE \read(tmp) [L981] tmp___0 = 0 [L985] retValue_acc = tmp___0 [L986] return (retValue_acc); [L836] RET, EXPR isHighWaterLevel() [L836] tmp = isHighWaterLevel() [L838] COND FALSE !(\read(tmp)) [L844] FCALL processEnvironment__wrappee__base() [L875] RET processEnvironment__wrappee__highWaterSensor() [L811] RET processEnvironment() [L817] CALL __utac_acc__Specification5_spec__3() [L696] int tmp ; [L697] int tmp___0 ; [L701] CALL, EXPR getWaterLevel() [L277] int retValue_acc ; [L280] retValue_acc = waterLevel [L281] return (retValue_acc); [L701] RET, EXPR getWaterLevel() [L701] tmp = getWaterLevel() [L703] COND TRUE tmp != 2 [L705] CALL, EXPR isPumpRunning() [L927] int retValue_acc ; [L930] retValue_acc = pumpRunning [L931] return (retValue_acc); [L705] RET, EXPR isPumpRunning() [L705] tmp___0 = isPumpRunning() [L707] COND FALSE !(\read(tmp___0)) [L817] RET __utac_acc__Specification5_spec__3() [L778] RET timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2022-07-14 16:00:07,825 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM)