./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/minepump_spec5_product62.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version c3fed411 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_product62.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 34b47c00ac265c7154b048b065075686f0b0d02157935b615817b802464c404c --- Real Ultimate output --- This is Ultimate 0.2.2-tmp.no-commuhash-c3fed41 [2021-12-19 19:13:04,144 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-19 19:13:04,146 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-19 19:13:04,215 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-19 19:13:04,216 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-19 19:13:04,219 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-19 19:13:04,220 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-19 19:13:04,226 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-19 19:13:04,227 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-19 19:13:04,229 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-19 19:13:04,230 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-19 19:13:04,232 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-19 19:13:04,232 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-19 19:13:04,240 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-19 19:13:04,242 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-19 19:13:04,244 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-19 19:13:04,249 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-19 19:13:04,250 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-19 19:13:04,251 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-19 19:13:04,254 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-19 19:13:04,257 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-19 19:13:04,258 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-19 19:13:04,258 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-19 19:13:04,260 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-19 19:13:04,262 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-19 19:13:04,266 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-19 19:13:04,266 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-19 19:13:04,267 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-19 19:13:04,268 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-19 19:13:04,269 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-19 19:13:04,269 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-19 19:13:04,270 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-19 19:13:04,271 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-19 19:13:04,272 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-19 19:13:04,273 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-19 19:13:04,273 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-19 19:13:04,274 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-19 19:13:04,275 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-19 19:13:04,275 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-19 19:13:04,275 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-19 19:13:04,276 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-19 19:13:04,277 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-12-19 19:13:04,307 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-19 19:13:04,310 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-19 19:13:04,310 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-19 19:13:04,310 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-19 19:13:04,312 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-19 19:13:04,312 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-19 19:13:04,313 INFO L138 SettingsManager]: * Use SBE=true [2021-12-19 19:13:04,313 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-12-19 19:13:04,313 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-12-19 19:13:04,313 INFO L138 SettingsManager]: * Use old map elimination=false [2021-12-19 19:13:04,314 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-12-19 19:13:04,314 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-12-19 19:13:04,314 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-12-19 19:13:04,315 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-19 19:13:04,315 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-19 19:13:04,315 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-12-19 19:13:04,315 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-19 19:13:04,315 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-19 19:13:04,316 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-19 19:13:04,316 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-12-19 19:13:04,316 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-12-19 19:13:04,316 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-12-19 19:13:04,316 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-19 19:13:04,317 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-19 19:13:04,317 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-12-19 19:13:04,317 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-19 19:13:04,317 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-12-19 19:13:04,318 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-19 19:13:04,318 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-19 19:13:04,318 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-19 19:13:04,318 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-19 19:13:04,318 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-19 19:13:04,319 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-12-19 19:13:04,320 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 34b47c00ac265c7154b048b065075686f0b0d02157935b615817b802464c404c [2021-12-19 19:13:04,554 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-19 19:13:04,573 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-19 19:13:04,575 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-19 19:13:04,576 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-19 19:13:04,576 INFO L275 PluginConnector]: CDTParser initialized [2021-12-19 19:13:04,577 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec5_product62.cil.c [2021-12-19 19:13:04,638 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/48706a292/210b88399bf34d24bd9f6ea1b49c23e5/FLAG13cdbfa64 [2021-12-19 19:13:05,107 INFO L306 CDTParser]: Found 1 translation units. [2021-12-19 19:13:05,107 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec5_product62.cil.c [2021-12-19 19:13:05,126 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/48706a292/210b88399bf34d24bd9f6ea1b49c23e5/FLAG13cdbfa64 [2021-12-19 19:13:05,620 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/48706a292/210b88399bf34d24bd9f6ea1b49c23e5 [2021-12-19 19:13:05,622 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-19 19:13:05,623 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-19 19:13:05,624 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-19 19:13:05,625 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-19 19:13:05,627 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-19 19:13:05,628 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.12 07:13:05" (1/1) ... [2021-12-19 19:13:05,628 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6ceed31c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 07:13:05, skipping insertion in model container [2021-12-19 19:13:05,628 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.12 07:13:05" (1/1) ... [2021-12-19 19:13:05,632 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-19 19:13:05,674 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-19 19:13:05,910 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_product62.cil.c[19180,19193] [2021-12-19 19:13:05,917 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-19 19:13:05,930 INFO L203 MainTranslator]: Completed pre-run [2021-12-19 19:13:06,020 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_product62.cil.c[19180,19193] [2021-12-19 19:13:06,021 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-19 19:13:06,036 INFO L208 MainTranslator]: Completed translation [2021-12-19 19:13:06,036 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 07:13:06 WrapperNode [2021-12-19 19:13:06,036 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-19 19:13:06,037 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-19 19:13:06,038 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-19 19:13:06,038 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-19 19:13:06,044 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 07:13:06" (1/1) ... [2021-12-19 19:13:06,067 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 07:13:06" (1/1) ... [2021-12-19 19:13:06,131 INFO L137 Inliner]: procedures = 60, calls = 164, calls flagged for inlining = 61, calls inlined = 181, statements flattened = 1296 [2021-12-19 19:13:06,131 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-19 19:13:06,132 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-19 19:13:06,132 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-19 19:13:06,132 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-19 19:13:06,139 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 07:13:06" (1/1) ... [2021-12-19 19:13:06,140 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 07:13:06" (1/1) ... [2021-12-19 19:13:06,145 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 07:13:06" (1/1) ... [2021-12-19 19:13:06,155 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 07:13:06" (1/1) ... [2021-12-19 19:13:06,176 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 07:13:06" (1/1) ... [2021-12-19 19:13:06,185 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 07:13:06" (1/1) ... [2021-12-19 19:13:06,188 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 07:13:06" (1/1) ... [2021-12-19 19:13:06,193 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-19 19:13:06,194 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-19 19:13:06,194 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-19 19:13:06,194 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-19 19:13:06,199 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 07:13:06" (1/1) ... [2021-12-19 19:13:06,222 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-19 19:13:06,233 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 19:13:06,245 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) [2021-12-19 19:13:06,269 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 [2021-12-19 19:13:06,285 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-19 19:13:06,285 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-19 19:13:06,286 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-19 19:13:06,286 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-19 19:13:06,375 INFO L236 CfgBuilder]: Building ICFG [2021-12-19 19:13:06,376 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-19 19:13:06,977 INFO L277 CfgBuilder]: Performing block encoding [2021-12-19 19:13:06,987 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-19 19:13:06,988 INFO L301 CfgBuilder]: Removed 2 assume(true) statements. [2021-12-19 19:13:06,990 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.12 07:13:06 BoogieIcfgContainer [2021-12-19 19:13:06,991 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-19 19:13:06,992 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-12-19 19:13:06,992 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-12-19 19:13:06,995 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-12-19 19:13:06,996 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-19 19:13:06,996 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 19.12 07:13:05" (1/3) ... [2021-12-19 19:13:06,997 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2d9a5a0c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 19.12 07:13:06, skipping insertion in model container [2021-12-19 19:13:06,997 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-19 19:13:06,997 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 07:13:06" (2/3) ... [2021-12-19 19:13:06,998 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2d9a5a0c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 19.12 07:13:06, skipping insertion in model container [2021-12-19 19:13:06,998 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-19 19:13:06,998 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.12 07:13:06" (3/3) ... [2021-12-19 19:13:06,999 INFO L388 chiAutomizerObserver]: Analyzing ICFG minepump_spec5_product62.cil.c [2021-12-19 19:13:07,035 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-12-19 19:13:07,036 INFO L360 BuchiCegarLoop]: Hoare is false [2021-12-19 19:13:07,036 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-12-19 19:13:07,036 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-12-19 19:13:07,036 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-12-19 19:13:07,036 INFO L364 BuchiCegarLoop]: Difference is false [2021-12-19 19:13:07,037 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-12-19 19:13:07,037 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-12-19 19:13:07,055 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 329 states, 328 states have (on average 1.350609756097561) internal successors, (443), 328 states have internal predecessors, (443), 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) [2021-12-19 19:13:07,089 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 215 [2021-12-19 19:13:07,090 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-19 19:13:07,090 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-19 19:13:07,097 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-12-19 19:13:07,098 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-19 19:13:07,098 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-12-19 19:13:07,100 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 329 states, 328 states have (on average 1.350609756097561) internal successors, (443), 328 states have internal predecessors, (443), 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) [2021-12-19 19:13:07,121 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 215 [2021-12-19 19:13:07,122 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-19 19:13:07,122 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-19 19:13:07,125 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-12-19 19:13:07,125 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-19 19:13:07,134 INFO L791 eck$LassoCheckResult]: Stem: 317#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(3, 5);call write~init~int(79, 5, 0, 1);call write~init~int(110, 5, 1, 1);call write~init~int(0, 5, 2, 1);call #Ultimate.allocInit(4, 6);call write~init~int(79, 6, 0, 1);call write~init~int(102, 6, 1, 1);call write~init~int(102, 6, 2, 1);call write~init~int(0, 6, 3, 1);call #Ultimate.allocInit(7, 7);call write~init~int(44, 7, 0, 1);call write~init~int(80, 7, 1, 1);call write~init~int(117, 7, 2, 1);call write~init~int(109, 7, 3, 1);call write~init~int(112, 7, 4, 1);call write~init~int(58, 7, 5, 1);call write~init~int(0, 7, 6, 1);call #Ultimate.allocInit(3, 8);call write~init~int(79, 8, 0, 1);call write~init~int(110, 8, 1, 1);call write~init~int(0, 8, 2, 1);call #Ultimate.allocInit(4, 9);call write~init~int(79, 9, 0, 1);call write~init~int(102, 9, 1, 1);call write~init~int(102, 9, 2, 1);call write~init~int(0, 9, 3, 1);call #Ultimate.allocInit(3, 10);call write~init~int(41, 10, 0, 1);call write~init~int(32, 10, 1, 1);call write~init~int(0, 10, 2, 1);call #Ultimate.allocInit(2, 11);call write~init~int(10, 11, 0, 1);call write~init~int(0, 11, 1, 1);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(21, 17);call #Ultimate.allocInit(30, 18);call #Ultimate.allocInit(9, 19);call #Ultimate.allocInit(25, 20);call #Ultimate.allocInit(30, 21);call #Ultimate.allocInit(9, 22);call #Ultimate.allocInit(25, 23);call #Ultimate.allocInit(13, 24);call #Ultimate.allocInit(7, 25);call write~init~int(44, 25, 0, 1);call write~init~int(77, 25, 1, 1);call write~init~int(101, 25, 2, 1);call write~init~int(116, 25, 3, 1);call write~init~int(104, 25, 4, 1);call write~init~int(58, 25, 5, 1);call write~init~int(0, 25, 6, 1);call #Ultimate.allocInit(5, 26);call write~init~int(67, 26, 0, 1);call write~init~int(82, 26, 1, 1);call write~init~int(73, 26, 2, 1);call write~init~int(84, 26, 3, 1);call write~init~int(0, 26, 4, 1);call #Ultimate.allocInit(3, 27);call write~init~int(79, 27, 0, 1);call write~init~int(75, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(41, 28, 0, 1);call write~init~int(0, 28, 1, 1);~pumpRunning~0 := 0;~systemActive~0 := 1;~switchedOnBeforeTS~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4; 206#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret54#1, main_~retValue_acc~11#1, main_~tmp~11#1;havoc main_~retValue_acc~11#1;havoc main_~tmp~11#1;assume { :begin_inline_select_helpers } true; 50#L1035true assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 158#L1028true assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~13#1;havoc valid_product_~retValue_acc~13#1;valid_product_~retValue_acc~13#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~13#1; 149#L1043true main_#t~ret54#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~11#1 := main_#t~ret54#1;havoc main_#t~ret54#1; 115#L990true assume 0 != main_~tmp~11#1;assume { :begin_inline_setup } true; 286#L963true assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0; 269#L322true assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet22#1, test_#t~nondet23#1, test_#t~nondet24#1, test_#t~nondet25#1, test_~splverifierCounter~0#1, test_~tmp~7#1, test_~tmp___0~3#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~7#1;havoc test_~tmp___0~3#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 258#L378-2true [2021-12-19 19:13:07,137 INFO L793 eck$LassoCheckResult]: Loop: 258#L378-2true assume !false; 132#L379true assume test_~splverifierCounter~0#1 < 4; 248#L380true test_~tmp~7#1 := test_#t~nondet22#1;havoc test_#t~nondet22#1; 32#L388true assume !(0 != test_~tmp~7#1); 180#L388-2true test_~tmp___0~3#1 := test_#t~nondet23#1;havoc test_#t~nondet23#1; 306#L398true assume !(0 != test_~tmp___0~3#1); 189#L398-2true test_~tmp___2~0#1 := test_#t~nondet24#1;havoc test_#t~nondet24#1; 292#L408true assume !(0 != test_~tmp___2~0#1);test_~tmp___1~0#1 := test_#t~nondet25#1;havoc test_#t~nondet25#1; 27#L416true assume 0 != test_~tmp___1~0#1; 139#L416-2true assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret19#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~1#1;havoc isPumpRunning_~retValue_acc~1#1;isPumpRunning_~retValue_acc~1#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~1#1; 118#L227true __utac_acc__Specification5_spec__2_#t~ret19#1 := isPumpRunning_#res#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret19#1;havoc __utac_acc__Specification5_spec__2_#t~ret19#1; 194#L332true assume { :end_inline___utac_acc__Specification5_spec__2 } true; 127#L73true assume !(0 != ~pumpRunning~0); 46#L73-2true assume !(0 != ~systemActive~0); 308#L80-1true assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret20#1, __utac_acc__Specification5_spec__3_#t~ret21#1, __utac_acc__Specification5_spec__3_~tmp~6#1, __utac_acc__Specification5_spec__3_~tmp___0~2#1;havoc __utac_acc__Specification5_spec__3_~tmp~6#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~2#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~8#1;havoc getWaterLevel_~retValue_acc~8#1;getWaterLevel_~retValue_acc~8#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~8#1; 113#L876true __utac_acc__Specification5_spec__3_#t~ret20#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~6#1 := __utac_acc__Specification5_spec__3_#t~ret20#1;havoc __utac_acc__Specification5_spec__3_#t~ret20#1; 275#L343true assume !(2 != __utac_acc__Specification5_spec__3_~tmp~6#1); 64#L343-1true assume { :end_inline___utac_acc__Specification5_spec__3 } true; 154#L90true assume { :end_inline_timeShift } true; 258#L378-2true [2021-12-19 19:13:07,149 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-19 19:13:07,150 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 1 times [2021-12-19 19:13:07,157 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-19 19:13:07,158 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1764931928] [2021-12-19 19:13:07,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 19:13:07,159 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-19 19:13:07,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-19 19:13:07,294 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-19 19:13:07,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-19 19:13:07,357 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-19 19:13:07,360 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-19 19:13:07,360 INFO L85 PathProgramCache]: Analyzing trace with hash 1980094924, now seen corresponding path program 1 times [2021-12-19 19:13:07,361 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-19 19:13:07,362 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1577905030] [2021-12-19 19:13:07,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 19:13:07,363 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-19 19:13:07,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-19 19:13:07,387 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-19 19:13:07,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-19 19:13:07,423 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-19 19:13:07,425 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-19 19:13:07,425 INFO L85 PathProgramCache]: Analyzing trace with hash -885124029, now seen corresponding path program 1 times [2021-12-19 19:13:07,425 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-19 19:13:07,425 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [504825758] [2021-12-19 19:13:07,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 19:13:07,426 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-19 19:13:07,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-19 19:13:07,549 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-19 19:13:07,550 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-19 19:13:07,551 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [504825758] [2021-12-19 19:13:07,551 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [504825758] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-19 19:13:07,551 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-19 19:13:07,552 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-19 19:13:07,552 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [482623629] [2021-12-19 19:13:07,553 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-19 19:13:07,726 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-19 19:13:07,755 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-19 19:13:07,756 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-12-19 19:13:07,758 INFO L87 Difference]: Start difference. First operand has 329 states, 328 states have (on average 1.350609756097561) internal successors, (443), 328 states have internal predecessors, (443), 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 4.5) internal successors, (27), 5 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-19 19:13:07,843 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-19 19:13:07,843 INFO L93 Difference]: Finished difference Result 326 states and 429 transitions. [2021-12-19 19:13:07,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-19 19:13:07,850 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 326 states and 429 transitions. [2021-12-19 19:13:07,856 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 211 [2021-12-19 19:13:07,860 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 326 states to 316 states and 419 transitions. [2021-12-19 19:13:07,861 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 316 [2021-12-19 19:13:07,862 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 316 [2021-12-19 19:13:07,863 INFO L73 IsDeterministic]: Start isDeterministic. Operand 316 states and 419 transitions. [2021-12-19 19:13:07,864 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-19 19:13:07,865 INFO L681 BuchiCegarLoop]: Abstraction has 316 states and 419 transitions. [2021-12-19 19:13:07,878 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 316 states and 419 transitions. [2021-12-19 19:13:07,901 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 316 to 316. [2021-12-19 19:13:07,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 316 states, 316 states have (on average 1.3259493670886076) internal successors, (419), 315 states have internal predecessors, (419), 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) [2021-12-19 19:13:07,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 316 states to 316 states and 419 transitions. [2021-12-19 19:13:07,904 INFO L704 BuchiCegarLoop]: Abstraction has 316 states and 419 transitions. [2021-12-19 19:13:07,904 INFO L587 BuchiCegarLoop]: Abstraction has 316 states and 419 transitions. [2021-12-19 19:13:07,904 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-12-19 19:13:07,905 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 316 states and 419 transitions. [2021-12-19 19:13:07,907 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 211 [2021-12-19 19:13:07,907 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-19 19:13:07,907 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-19 19:13:07,909 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-12-19 19:13:07,909 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-19 19:13:07,909 INFO L791 eck$LassoCheckResult]: Stem: 985#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(3, 5);call write~init~int(79, 5, 0, 1);call write~init~int(110, 5, 1, 1);call write~init~int(0, 5, 2, 1);call #Ultimate.allocInit(4, 6);call write~init~int(79, 6, 0, 1);call write~init~int(102, 6, 1, 1);call write~init~int(102, 6, 2, 1);call write~init~int(0, 6, 3, 1);call #Ultimate.allocInit(7, 7);call write~init~int(44, 7, 0, 1);call write~init~int(80, 7, 1, 1);call write~init~int(117, 7, 2, 1);call write~init~int(109, 7, 3, 1);call write~init~int(112, 7, 4, 1);call write~init~int(58, 7, 5, 1);call write~init~int(0, 7, 6, 1);call #Ultimate.allocInit(3, 8);call write~init~int(79, 8, 0, 1);call write~init~int(110, 8, 1, 1);call write~init~int(0, 8, 2, 1);call #Ultimate.allocInit(4, 9);call write~init~int(79, 9, 0, 1);call write~init~int(102, 9, 1, 1);call write~init~int(102, 9, 2, 1);call write~init~int(0, 9, 3, 1);call #Ultimate.allocInit(3, 10);call write~init~int(41, 10, 0, 1);call write~init~int(32, 10, 1, 1);call write~init~int(0, 10, 2, 1);call #Ultimate.allocInit(2, 11);call write~init~int(10, 11, 0, 1);call write~init~int(0, 11, 1, 1);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(21, 17);call #Ultimate.allocInit(30, 18);call #Ultimate.allocInit(9, 19);call #Ultimate.allocInit(25, 20);call #Ultimate.allocInit(30, 21);call #Ultimate.allocInit(9, 22);call #Ultimate.allocInit(25, 23);call #Ultimate.allocInit(13, 24);call #Ultimate.allocInit(7, 25);call write~init~int(44, 25, 0, 1);call write~init~int(77, 25, 1, 1);call write~init~int(101, 25, 2, 1);call write~init~int(116, 25, 3, 1);call write~init~int(104, 25, 4, 1);call write~init~int(58, 25, 5, 1);call write~init~int(0, 25, 6, 1);call #Ultimate.allocInit(5, 26);call write~init~int(67, 26, 0, 1);call write~init~int(82, 26, 1, 1);call write~init~int(73, 26, 2, 1);call write~init~int(84, 26, 3, 1);call write~init~int(0, 26, 4, 1);call #Ultimate.allocInit(3, 27);call write~init~int(79, 27, 0, 1);call write~init~int(75, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(41, 28, 0, 1);call write~init~int(0, 28, 1, 1);~pumpRunning~0 := 0;~systemActive~0 := 1;~switchedOnBeforeTS~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4; 945#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret54#1, main_~retValue_acc~11#1, main_~tmp~11#1;havoc main_~retValue_acc~11#1;havoc main_~tmp~11#1;assume { :begin_inline_select_helpers } true; 763#L1035 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 764#L1028 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~13#1;havoc valid_product_~retValue_acc~13#1;valid_product_~retValue_acc~13#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~13#1; 901#L1043 main_#t~ret54#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~11#1 := main_#t~ret54#1;havoc main_#t~ret54#1; 861#L990 assume 0 != main_~tmp~11#1;assume { :begin_inline_setup } true; 862#L963 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0; 972#L322 assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet22#1, test_#t~nondet23#1, test_#t~nondet24#1, test_#t~nondet25#1, test_~splverifierCounter~0#1, test_~tmp~7#1, test_~tmp___0~3#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~7#1;havoc test_~tmp___0~3#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 904#L378-2 [2021-12-19 19:13:07,910 INFO L793 eck$LassoCheckResult]: Loop: 904#L378-2 assume !false; 884#L379 assume test_~splverifierCounter~0#1 < 4; 885#L380 test_~tmp~7#1 := test_#t~nondet22#1;havoc test_#t~nondet22#1; 731#L388 assume !(0 != test_~tmp~7#1); 733#L388-2 test_~tmp___0~3#1 := test_#t~nondet23#1;havoc test_#t~nondet23#1; 929#L398 assume !(0 != test_~tmp___0~3#1); 680#L398-2 test_~tmp___2~0#1 := test_#t~nondet24#1;havoc test_#t~nondet24#1; 937#L408 assume !(0 != test_~tmp___2~0#1);test_~tmp___1~0#1 := test_#t~nondet25#1;havoc test_#t~nondet25#1; 724#L416 assume 0 != test_~tmp___1~0#1; 725#L416-2 assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret19#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~1#1;havoc isPumpRunning_~retValue_acc~1#1;isPumpRunning_~retValue_acc~1#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~1#1; 863#L227 __utac_acc__Specification5_spec__2_#t~ret19#1 := isPumpRunning_#res#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret19#1;havoc __utac_acc__Specification5_spec__2_#t~ret19#1; 864#L332 assume { :end_inline___utac_acc__Specification5_spec__2 } true; 877#L73 assume !(0 != ~pumpRunning~0); 758#L73-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret6#1, processEnvironment_~tmp~2#1;havoc processEnvironment_~tmp~2#1; 685#L157 assume 0 != ~pumpRunning~0;assume { :begin_inline_isMethaneAlarm } true;havoc isMethaneAlarm_#res#1;havoc isMethaneAlarm_#t~ret8#1, isMethaneAlarm_~retValue_acc~0#1;havoc isMethaneAlarm_~retValue_acc~0#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~7#1;havoc isMethaneLevelCritical_~retValue_acc~7#1;isMethaneLevelCritical_~retValue_acc~7#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~7#1; 686#L844 isMethaneAlarm_#t~ret8#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;isMethaneAlarm_~retValue_acc~0#1 := isMethaneAlarm_#t~ret8#1;havoc isMethaneAlarm_#t~ret8#1;isMethaneAlarm_#res#1 := isMethaneAlarm_~retValue_acc~0#1; 835#L218 processEnvironment_#t~ret6#1 := isMethaneAlarm_#res#1;assume { :end_inline_isMethaneAlarm } true;processEnvironment_~tmp~2#1 := processEnvironment_#t~ret6#1;havoc processEnvironment_#t~ret6#1; 924#L161 assume 0 != processEnvironment_~tmp~2#1;assume { :begin_inline_deactivatePump } true;~pumpRunning~0 := 0; 925#L208 assume { :end_inline_deactivatePump } true; 719#L157-1 assume { :end_inline_processEnvironment } true; 720#L80-1 assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret20#1, __utac_acc__Specification5_spec__3_#t~ret21#1, __utac_acc__Specification5_spec__3_~tmp~6#1, __utac_acc__Specification5_spec__3_~tmp___0~2#1;havoc __utac_acc__Specification5_spec__3_~tmp~6#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~2#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~8#1;havoc getWaterLevel_~retValue_acc~8#1;getWaterLevel_~retValue_acc~8#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~8#1; 859#L876 __utac_acc__Specification5_spec__3_#t~ret20#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~6#1 := __utac_acc__Specification5_spec__3_#t~ret20#1;havoc __utac_acc__Specification5_spec__3_#t~ret20#1; 860#L343 assume !(2 != __utac_acc__Specification5_spec__3_~tmp~6#1); 787#L343-1 assume { :end_inline___utac_acc__Specification5_spec__3 } true; 788#L90 assume { :end_inline_timeShift } true; 904#L378-2 [2021-12-19 19:13:07,910 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-19 19:13:07,910 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 2 times [2021-12-19 19:13:07,911 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-19 19:13:07,911 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [402244351] [2021-12-19 19:13:07,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 19:13:07,913 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-19 19:13:07,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-19 19:13:07,942 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-19 19:13:07,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-19 19:13:07,960 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-19 19:13:07,961 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-19 19:13:07,961 INFO L85 PathProgramCache]: Analyzing trace with hash -1612952875, now seen corresponding path program 1 times [2021-12-19 19:13:07,961 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-19 19:13:07,962 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [880555954] [2021-12-19 19:13:07,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 19:13:07,962 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-19 19:13:07,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-19 19:13:07,982 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-19 19:13:07,982 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-19 19:13:07,983 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [880555954] [2021-12-19 19:13:07,983 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [880555954] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-19 19:13:07,983 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-19 19:13:07,983 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-19 19:13:07,983 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [611179626] [2021-12-19 19:13:07,984 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-19 19:13:07,984 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-12-19 19:13:07,984 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-19 19:13:07,984 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-19 19:13:07,985 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-19 19:13:07,985 INFO L87 Difference]: Start difference. First operand 316 states and 419 transitions. cyclomatic complexity: 105 Second operand has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 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) [2021-12-19 19:13:08,085 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-19 19:13:08,085 INFO L93 Difference]: Finished difference Result 333 states and 419 transitions. [2021-12-19 19:13:08,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-19 19:13:08,086 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 333 states and 419 transitions. [2021-12-19 19:13:08,088 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 228 [2021-12-19 19:13:08,090 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 333 states to 333 states and 419 transitions. [2021-12-19 19:13:08,090 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 333 [2021-12-19 19:13:08,091 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 333 [2021-12-19 19:13:08,091 INFO L73 IsDeterministic]: Start isDeterministic. Operand 333 states and 419 transitions. [2021-12-19 19:13:08,092 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-19 19:13:08,092 INFO L681 BuchiCegarLoop]: Abstraction has 333 states and 419 transitions. [2021-12-19 19:13:08,093 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 333 states and 419 transitions. [2021-12-19 19:13:08,099 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 333 to 333. [2021-12-19 19:13:08,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 333 states, 333 states have (on average 1.2582582582582582) internal successors, (419), 332 states have internal predecessors, (419), 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) [2021-12-19 19:13:08,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 333 states to 333 states and 419 transitions. [2021-12-19 19:13:08,101 INFO L704 BuchiCegarLoop]: Abstraction has 333 states and 419 transitions. [2021-12-19 19:13:08,101 INFO L587 BuchiCegarLoop]: Abstraction has 333 states and 419 transitions. [2021-12-19 19:13:08,101 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-12-19 19:13:08,101 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 333 states and 419 transitions. [2021-12-19 19:13:08,103 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 228 [2021-12-19 19:13:08,103 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-19 19:13:08,103 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-19 19:13:08,104 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-12-19 19:13:08,104 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-19 19:13:08,104 INFO L791 eck$LassoCheckResult]: Stem: 1589#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(3, 5);call write~init~int(79, 5, 0, 1);call write~init~int(110, 5, 1, 1);call write~init~int(0, 5, 2, 1);call #Ultimate.allocInit(4, 6);call write~init~int(79, 6, 0, 1);call write~init~int(102, 6, 1, 1);call write~init~int(102, 6, 2, 1);call write~init~int(0, 6, 3, 1);call #Ultimate.allocInit(7, 7);call write~init~int(44, 7, 0, 1);call write~init~int(80, 7, 1, 1);call write~init~int(117, 7, 2, 1);call write~init~int(109, 7, 3, 1);call write~init~int(112, 7, 4, 1);call write~init~int(58, 7, 5, 1);call write~init~int(0, 7, 6, 1);call #Ultimate.allocInit(3, 8);call write~init~int(79, 8, 0, 1);call write~init~int(110, 8, 1, 1);call write~init~int(0, 8, 2, 1);call #Ultimate.allocInit(4, 9);call write~init~int(79, 9, 0, 1);call write~init~int(102, 9, 1, 1);call write~init~int(102, 9, 2, 1);call write~init~int(0, 9, 3, 1);call #Ultimate.allocInit(3, 10);call write~init~int(41, 10, 0, 1);call write~init~int(32, 10, 1, 1);call write~init~int(0, 10, 2, 1);call #Ultimate.allocInit(2, 11);call write~init~int(10, 11, 0, 1);call write~init~int(0, 11, 1, 1);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(21, 17);call #Ultimate.allocInit(30, 18);call #Ultimate.allocInit(9, 19);call #Ultimate.allocInit(25, 20);call #Ultimate.allocInit(30, 21);call #Ultimate.allocInit(9, 22);call #Ultimate.allocInit(25, 23);call #Ultimate.allocInit(13, 24);call #Ultimate.allocInit(7, 25);call write~init~int(44, 25, 0, 1);call write~init~int(77, 25, 1, 1);call write~init~int(101, 25, 2, 1);call write~init~int(116, 25, 3, 1);call write~init~int(104, 25, 4, 1);call write~init~int(58, 25, 5, 1);call write~init~int(0, 25, 6, 1);call #Ultimate.allocInit(5, 26);call write~init~int(67, 26, 0, 1);call write~init~int(82, 26, 1, 1);call write~init~int(73, 26, 2, 1);call write~init~int(84, 26, 3, 1);call write~init~int(0, 26, 4, 1);call #Ultimate.allocInit(3, 27);call write~init~int(79, 27, 0, 1);call write~init~int(75, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(41, 28, 0, 1);call write~init~int(0, 28, 1, 1);~pumpRunning~0 := 0;~systemActive~0 := 1;~switchedOnBeforeTS~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4; 1545#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret54#1, main_~retValue_acc~11#1, main_~tmp~11#1;havoc main_~retValue_acc~11#1;havoc main_~tmp~11#1;assume { :begin_inline_select_helpers } true; 1400#L1035 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 1401#L1028 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~13#1;havoc valid_product_~retValue_acc~13#1;valid_product_~retValue_acc~13#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~13#1; 1507#L1043 main_#t~ret54#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~11#1 := main_#t~ret54#1;havoc main_#t~ret54#1; 1472#L990 assume 0 != main_~tmp~11#1;assume { :begin_inline_setup } true; 1473#L963 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0; 1574#L322 assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet22#1, test_#t~nondet23#1, test_#t~nondet24#1, test_#t~nondet25#1, test_~splverifierCounter~0#1, test_~tmp~7#1, test_~tmp___0~3#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~7#1;havoc test_~tmp___0~3#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 1510#L378-2 [2021-12-19 19:13:08,105 INFO L793 eck$LassoCheckResult]: Loop: 1510#L378-2 assume !false; 1489#L379 assume test_~splverifierCounter~0#1 < 4; 1490#L380 test_~tmp~7#1 := test_#t~nondet22#1;havoc test_#t~nondet22#1; 1658#L388 assume !(0 != test_~tmp~7#1); 1656#L388-2 test_~tmp___0~3#1 := test_#t~nondet23#1;havoc test_#t~nondet23#1; 1654#L398 assume !(0 != test_~tmp___0~3#1); 1652#L398-2 test_~tmp___2~0#1 := test_#t~nondet24#1;havoc test_#t~nondet24#1; 1651#L408 assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 1649#L310 assume { :end_inline_startSystem } true; 1648#L416-2 assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret19#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~1#1;havoc isPumpRunning_~retValue_acc~1#1;isPumpRunning_~retValue_acc~1#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~1#1; 1474#L227 __utac_acc__Specification5_spec__2_#t~ret19#1 := isPumpRunning_#res#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret19#1;havoc __utac_acc__Specification5_spec__2_#t~ret19#1; 1475#L332 assume { :end_inline___utac_acc__Specification5_spec__2 } true; 1482#L73 assume !(0 != ~pumpRunning~0); 1395#L73-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret6#1, processEnvironment_~tmp~2#1;havoc processEnvironment_~tmp~2#1; 1334#L157 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__methaneQuery } true;havoc processEnvironment__wrappee__methaneQuery_#t~ret5#1, processEnvironment__wrappee__methaneQuery_~tmp~1#1;havoc processEnvironment__wrappee__methaneQuery_~tmp~1#1; 1335#L131-2 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret4#1, processEnvironment__wrappee__highWaterSensor_~tmp~0#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~0#1; 1336#L105-6 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret17#1, isHighWaterLevel_~retValue_acc~2#1, isHighWaterLevel_~tmp~4#1, isHighWaterLevel_~tmp___0~0#1;havoc isHighWaterLevel_~retValue_acc~2#1;havoc isHighWaterLevel_~tmp~4#1;havoc isHighWaterLevel_~tmp___0~0#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~9#1;havoc isHighWaterSensorDry_~retValue_acc~9#1; 1337#L884-3 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~9#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~9#1; 1462#L889-3 isHighWaterLevel_#t~ret17#1 := isHighWaterSensorDry_#res#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~4#1 := isHighWaterLevel_#t~ret17#1;havoc isHighWaterLevel_#t~ret17#1; 1463#L276-9 assume 0 != isHighWaterLevel_~tmp~4#1;isHighWaterLevel_~tmp___0~0#1 := 0; 1453#L276-11 isHighWaterLevel_~retValue_acc~2#1 := isHighWaterLevel_~tmp___0~0#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~2#1; 1454#L282-3 processEnvironment__wrappee__highWaterSensor_#t~ret4#1 := isHighWaterLevel_#res#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~0#1 := processEnvironment__wrappee__highWaterSensor_#t~ret4#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret4#1; 1578#L109-9 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~0#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 1330#L97-6 assume { :end_inline_processEnvironment__wrappee__base } true; 1331#L105-7 assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 1481#L131-3 assume { :end_inline_processEnvironment__wrappee__methaneQuery } true; 1364#L157-1 assume { :end_inline_processEnvironment } true; 1365#L80-1 assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret20#1, __utac_acc__Specification5_spec__3_#t~ret21#1, __utac_acc__Specification5_spec__3_~tmp~6#1, __utac_acc__Specification5_spec__3_~tmp___0~2#1;havoc __utac_acc__Specification5_spec__3_~tmp~6#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~2#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~8#1;havoc getWaterLevel_~retValue_acc~8#1;getWaterLevel_~retValue_acc~8#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~8#1; 1470#L876 __utac_acc__Specification5_spec__3_#t~ret20#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~6#1 := __utac_acc__Specification5_spec__3_#t~ret20#1;havoc __utac_acc__Specification5_spec__3_#t~ret20#1; 1471#L343 assume !(2 != __utac_acc__Specification5_spec__3_~tmp~6#1); 1417#L343-1 assume { :end_inline___utac_acc__Specification5_spec__3 } true; 1418#L90 assume { :end_inline_timeShift } true; 1510#L378-2 [2021-12-19 19:13:08,105 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-19 19:13:08,105 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 3 times [2021-12-19 19:13:08,106 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-19 19:13:08,106 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1839970042] [2021-12-19 19:13:08,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 19:13:08,106 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-19 19:13:08,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-19 19:13:08,115 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-19 19:13:08,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-19 19:13:08,124 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-19 19:13:08,125 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-19 19:13:08,125 INFO L85 PathProgramCache]: Analyzing trace with hash 1643392611, now seen corresponding path program 1 times [2021-12-19 19:13:08,125 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-19 19:13:08,126 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1279306680] [2021-12-19 19:13:08,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 19:13:08,126 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-19 19:13:08,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-19 19:13:08,174 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-19 19:13:08,175 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-19 19:13:08,175 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1279306680] [2021-12-19 19:13:08,176 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1279306680] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-19 19:13:08,176 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-19 19:13:08,176 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-19 19:13:08,177 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [419242406] [2021-12-19 19:13:08,177 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-19 19:13:08,177 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-12-19 19:13:08,177 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-19 19:13:08,178 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-19 19:13:08,178 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-19 19:13:08,178 INFO L87 Difference]: Start difference. First operand 333 states and 419 transitions. cyclomatic complexity: 88 Second operand has 5 states, 5 states have (on average 6.4) internal successors, (32), 5 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-19 19:13:08,345 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-19 19:13:08,345 INFO L93 Difference]: Finished difference Result 998 states and 1232 transitions. [2021-12-19 19:13:08,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-19 19:13:08,346 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 998 states and 1232 transitions. [2021-12-19 19:13:08,353 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 627 [2021-12-19 19:13:08,357 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 998 states to 998 states and 1232 transitions. [2021-12-19 19:13:08,358 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 998 [2021-12-19 19:13:08,358 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 998 [2021-12-19 19:13:08,359 INFO L73 IsDeterministic]: Start isDeterministic. Operand 998 states and 1232 transitions. [2021-12-19 19:13:08,360 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-19 19:13:08,360 INFO L681 BuchiCegarLoop]: Abstraction has 998 states and 1232 transitions. [2021-12-19 19:13:08,361 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 998 states and 1232 transitions. [2021-12-19 19:13:08,371 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 998 to 656. [2021-12-19 19:13:08,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 656 states, 656 states have (on average 1.236280487804878) internal successors, (811), 655 states have internal predecessors, (811), 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) [2021-12-19 19:13:08,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 656 states to 656 states and 811 transitions. [2021-12-19 19:13:08,374 INFO L704 BuchiCegarLoop]: Abstraction has 656 states and 811 transitions. [2021-12-19 19:13:08,374 INFO L587 BuchiCegarLoop]: Abstraction has 656 states and 811 transitions. [2021-12-19 19:13:08,374 INFO L425 BuchiCegarLoop]: ======== Iteration 4============ [2021-12-19 19:13:08,375 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 656 states and 811 transitions. [2021-12-19 19:13:08,377 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 454 [2021-12-19 19:13:08,377 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-19 19:13:08,378 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-19 19:13:08,378 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-12-19 19:13:08,378 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-19 19:13:08,379 INFO L791 eck$LassoCheckResult]: Stem: 2957#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(3, 5);call write~init~int(79, 5, 0, 1);call write~init~int(110, 5, 1, 1);call write~init~int(0, 5, 2, 1);call #Ultimate.allocInit(4, 6);call write~init~int(79, 6, 0, 1);call write~init~int(102, 6, 1, 1);call write~init~int(102, 6, 2, 1);call write~init~int(0, 6, 3, 1);call #Ultimate.allocInit(7, 7);call write~init~int(44, 7, 0, 1);call write~init~int(80, 7, 1, 1);call write~init~int(117, 7, 2, 1);call write~init~int(109, 7, 3, 1);call write~init~int(112, 7, 4, 1);call write~init~int(58, 7, 5, 1);call write~init~int(0, 7, 6, 1);call #Ultimate.allocInit(3, 8);call write~init~int(79, 8, 0, 1);call write~init~int(110, 8, 1, 1);call write~init~int(0, 8, 2, 1);call #Ultimate.allocInit(4, 9);call write~init~int(79, 9, 0, 1);call write~init~int(102, 9, 1, 1);call write~init~int(102, 9, 2, 1);call write~init~int(0, 9, 3, 1);call #Ultimate.allocInit(3, 10);call write~init~int(41, 10, 0, 1);call write~init~int(32, 10, 1, 1);call write~init~int(0, 10, 2, 1);call #Ultimate.allocInit(2, 11);call write~init~int(10, 11, 0, 1);call write~init~int(0, 11, 1, 1);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(21, 17);call #Ultimate.allocInit(30, 18);call #Ultimate.allocInit(9, 19);call #Ultimate.allocInit(25, 20);call #Ultimate.allocInit(30, 21);call #Ultimate.allocInit(9, 22);call #Ultimate.allocInit(25, 23);call #Ultimate.allocInit(13, 24);call #Ultimate.allocInit(7, 25);call write~init~int(44, 25, 0, 1);call write~init~int(77, 25, 1, 1);call write~init~int(101, 25, 2, 1);call write~init~int(116, 25, 3, 1);call write~init~int(104, 25, 4, 1);call write~init~int(58, 25, 5, 1);call write~init~int(0, 25, 6, 1);call #Ultimate.allocInit(5, 26);call write~init~int(67, 26, 0, 1);call write~init~int(82, 26, 1, 1);call write~init~int(73, 26, 2, 1);call write~init~int(84, 26, 3, 1);call write~init~int(0, 26, 4, 1);call #Ultimate.allocInit(3, 27);call write~init~int(79, 27, 0, 1);call write~init~int(75, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(41, 28, 0, 1);call write~init~int(0, 28, 1, 1);~pumpRunning~0 := 0;~systemActive~0 := 1;~switchedOnBeforeTS~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4; 2903#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret54#1, main_~retValue_acc~11#1, main_~tmp~11#1;havoc main_~retValue_acc~11#1;havoc main_~tmp~11#1;assume { :begin_inline_select_helpers } true; 2746#L1035 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 2747#L1028 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~13#1;havoc valid_product_~retValue_acc~13#1;valid_product_~retValue_acc~13#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~13#1; 2858#L1043 main_#t~ret54#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~11#1 := main_#t~ret54#1;havoc main_#t~ret54#1; 2823#L990 assume 0 != main_~tmp~11#1;assume { :begin_inline_setup } true; 2824#L963 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0; 2935#L322 assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet22#1, test_#t~nondet23#1, test_#t~nondet24#1, test_#t~nondet25#1, test_~splverifierCounter~0#1, test_~tmp~7#1, test_~tmp___0~3#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~7#1;havoc test_~tmp___0~3#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 2863#L378-2 [2021-12-19 19:13:08,379 INFO L793 eck$LassoCheckResult]: Loop: 2863#L378-2 assume !false; 2842#L379 assume test_~splverifierCounter~0#1 < 4; 2843#L380 test_~tmp~7#1 := test_#t~nondet22#1;havoc test_#t~nondet22#1; 3301#L388 assume !(0 != test_~tmp~7#1); 3300#L388-2 test_~tmp___0~3#1 := test_#t~nondet23#1;havoc test_#t~nondet23#1; 2952#L398 assume !(0 != test_~tmp___0~3#1); 2680#L398-2 test_~tmp___2~0#1 := test_#t~nondet24#1;havoc test_#t~nondet24#1; 2892#L408 assume !(0 != test_~tmp___2~0#1);test_~tmp___1~0#1 := test_#t~nondet25#1;havoc test_#t~nondet25#1; 2716#L416 assume 0 != test_~tmp___1~0#1; 2717#L416-2 assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret19#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~1#1;havoc isPumpRunning_~retValue_acc~1#1;isPumpRunning_~retValue_acc~1#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~1#1; 2825#L227 __utac_acc__Specification5_spec__2_#t~ret19#1 := isPumpRunning_#res#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret19#1;havoc __utac_acc__Specification5_spec__2_#t~ret19#1; 2826#L332 assume { :end_inline___utac_acc__Specification5_spec__2 } true; 2834#L73 assume !(0 != ~pumpRunning~0); 2743#L73-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret6#1, processEnvironment_~tmp~2#1;havoc processEnvironment_~tmp~2#1; 2683#L157 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__methaneQuery } true;havoc processEnvironment__wrappee__methaneQuery_#t~ret5#1, processEnvironment__wrappee__methaneQuery_~tmp~1#1;havoc processEnvironment__wrappee__methaneQuery_~tmp~1#1; 2684#L131-2 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret4#1, processEnvironment__wrappee__highWaterSensor_~tmp~0#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~0#1; 2681#L105-6 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret17#1, isHighWaterLevel_~retValue_acc~2#1, isHighWaterLevel_~tmp~4#1, isHighWaterLevel_~tmp___0~0#1;havoc isHighWaterLevel_~retValue_acc~2#1;havoc isHighWaterLevel_~tmp~4#1;havoc isHighWaterLevel_~tmp___0~0#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~9#1;havoc isHighWaterSensorDry_~retValue_acc~9#1; 2682#L884-3 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~9#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~9#1; 2812#L889-3 isHighWaterLevel_#t~ret17#1 := isHighWaterSensorDry_#res#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~4#1 := isHighWaterLevel_#t~ret17#1;havoc isHighWaterLevel_#t~ret17#1; 2813#L276-9 assume 0 != isHighWaterLevel_~tmp~4#1;isHighWaterLevel_~tmp___0~0#1 := 0; 2803#L276-11 isHighWaterLevel_~retValue_acc~2#1 := isHighWaterLevel_~tmp___0~0#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~2#1; 2804#L282-3 processEnvironment__wrappee__highWaterSensor_#t~ret4#1 := isHighWaterLevel_#res#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~0#1 := processEnvironment__wrappee__highWaterSensor_#t~ret4#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret4#1; 2941#L109-9 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~0#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 2677#L97-6 assume { :end_inline_processEnvironment__wrappee__base } true; 2678#L105-7 assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 3303#L131-3 assume { :end_inline_processEnvironment__wrappee__methaneQuery } true; 2712#L157-1 assume { :end_inline_processEnvironment } true; 2713#L80-1 assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret20#1, __utac_acc__Specification5_spec__3_#t~ret21#1, __utac_acc__Specification5_spec__3_~tmp~6#1, __utac_acc__Specification5_spec__3_~tmp___0~2#1;havoc __utac_acc__Specification5_spec__3_~tmp~6#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~2#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~8#1;havoc getWaterLevel_~retValue_acc~8#1;getWaterLevel_~retValue_acc~8#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~8#1; 2821#L876 __utac_acc__Specification5_spec__3_#t~ret20#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~6#1 := __utac_acc__Specification5_spec__3_#t~ret20#1;havoc __utac_acc__Specification5_spec__3_#t~ret20#1; 2822#L343 assume 2 != __utac_acc__Specification5_spec__3_~tmp~6#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~1#1;havoc isPumpRunning_~retValue_acc~1#1;isPumpRunning_~retValue_acc~1#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~1#1; 2720#L227-1 __utac_acc__Specification5_spec__3_#t~ret21#1 := isPumpRunning_#res#1;assume { :end_inline_isPumpRunning } true;__utac_acc__Specification5_spec__3_~tmp___0~2#1 := __utac_acc__Specification5_spec__3_#t~ret21#1;havoc __utac_acc__Specification5_spec__3_#t~ret21#1; 2721#L347 assume !(0 != __utac_acc__Specification5_spec__3_~tmp___0~2#1); 2767#L343-1 assume { :end_inline___utac_acc__Specification5_spec__3 } true; 2768#L90 assume { :end_inline_timeShift } true; 2863#L378-2 [2021-12-19 19:13:08,380 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-19 19:13:08,380 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 4 times [2021-12-19 19:13:08,380 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-19 19:13:08,380 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1870226413] [2021-12-19 19:13:08,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 19:13:08,381 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-19 19:13:08,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-19 19:13:08,387 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-19 19:13:08,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-19 19:13:08,396 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-19 19:13:08,397 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-19 19:13:08,397 INFO L85 PathProgramCache]: Analyzing trace with hash -1560169027, now seen corresponding path program 1 times [2021-12-19 19:13:08,397 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-19 19:13:08,397 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1716912944] [2021-12-19 19:13:08,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 19:13:08,398 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-19 19:13:08,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-19 19:13:08,403 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-19 19:13:08,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-19 19:13:08,411 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-19 19:13:08,411 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-19 19:13:08,412 INFO L85 PathProgramCache]: Analyzing trace with hash 500981350, now seen corresponding path program 1 times [2021-12-19 19:13:08,412 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-19 19:13:08,412 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1823189283] [2021-12-19 19:13:08,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 19:13:08,412 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-19 19:13:08,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-19 19:13:08,422 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-19 19:13:08,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-19 19:13:08,445 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-19 19:13:11,296 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 19.12 07:13:11 BoogieIcfgContainer [2021-12-19 19:13:11,296 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-12-19 19:13:11,297 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-19 19:13:11,297 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-19 19:13:11,297 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-19 19:13:11,297 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.12 07:13:06" (3/4) ... [2021-12-19 19:13:11,299 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2021-12-19 19:13:11,358 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-12-19 19:13:11,359 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-19 19:13:11,359 INFO L158 Benchmark]: Toolchain (without parser) took 5735.60ms. Allocated memory was 98.6MB in the beginning and 155.2MB in the end (delta: 56.6MB). Free memory was 67.1MB in the beginning and 72.4MB in the end (delta: -5.2MB). Peak memory consumption was 51.3MB. Max. memory is 16.1GB. [2021-12-19 19:13:11,360 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 98.6MB. Free memory was 57.3MB in the beginning and 57.2MB in the end (delta: 44.9kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-19 19:13:11,360 INFO L158 Benchmark]: CACSL2BoogieTranslator took 412.32ms. Allocated memory is still 98.6MB. Free memory was 66.8MB in the beginning and 66.2MB in the end (delta: 643.4kB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-12-19 19:13:11,361 INFO L158 Benchmark]: Boogie Procedure Inliner took 94.00ms. Allocated memory is still 98.6MB. Free memory was 66.2MB in the beginning and 60.7MB in the end (delta: 5.5MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-12-19 19:13:11,361 INFO L158 Benchmark]: Boogie Preprocessor took 61.52ms. Allocated memory is still 98.6MB. Free memory was 60.7MB in the beginning and 57.3MB in the end (delta: 3.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-19 19:13:11,362 INFO L158 Benchmark]: RCFGBuilder took 796.77ms. Allocated memory was 98.6MB in the beginning and 119.5MB in the end (delta: 21.0MB). Free memory was 56.9MB in the beginning and 72.9MB in the end (delta: -16.0MB). Peak memory consumption was 19.5MB. Max. memory is 16.1GB. [2021-12-19 19:13:11,363 INFO L158 Benchmark]: BuchiAutomizer took 4304.53ms. Allocated memory was 119.5MB in the beginning and 155.2MB in the end (delta: 35.7MB). Free memory was 72.9MB in the beginning and 75.4MB in the end (delta: -2.5MB). Peak memory consumption was 68.9MB. Max. memory is 16.1GB. [2021-12-19 19:13:11,363 INFO L158 Benchmark]: Witness Printer took 62.08ms. Allocated memory is still 155.2MB. Free memory was 75.4MB in the beginning and 72.4MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-19 19:13:11,366 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 98.6MB. Free memory was 57.3MB in the beginning and 57.2MB in the end (delta: 44.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 412.32ms. Allocated memory is still 98.6MB. Free memory was 66.8MB in the beginning and 66.2MB in the end (delta: 643.4kB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 94.00ms. Allocated memory is still 98.6MB. Free memory was 66.2MB in the beginning and 60.7MB in the end (delta: 5.5MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Preprocessor took 61.52ms. Allocated memory is still 98.6MB. Free memory was 60.7MB in the beginning and 57.3MB in the end (delta: 3.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 796.77ms. Allocated memory was 98.6MB in the beginning and 119.5MB in the end (delta: 21.0MB). Free memory was 56.9MB in the beginning and 72.9MB in the end (delta: -16.0MB). Peak memory consumption was 19.5MB. Max. memory is 16.1GB. * BuchiAutomizer took 4304.53ms. Allocated memory was 119.5MB in the beginning and 155.2MB in the end (delta: 35.7MB). Free memory was 72.9MB in the beginning and 75.4MB in the end (delta: -2.5MB). Peak memory consumption was 68.9MB. Max. memory is 16.1GB. * Witness Printer took 62.08ms. Allocated memory is still 155.2MB. Free memory was 75.4MB in the beginning and 72.4MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 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 656 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 4.2s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 3.6s. Construction of modules took 0.1s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 0. Minimization of det autom 3. Minimization of nondet autom 0. Automata minimization 0.1s AutomataMinimizationTime, 3 MinimizatonAttempts, 342 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 656 states and ocurred in iteration 3. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2647 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2647 mSDsluCounter, 2507 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1243 mSDsCounter, 83 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 169 IncrementalHoareTripleChecker+Invalid, 252 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 83 mSolverCounterUnsat, 1264 mSDtfsCounter, 169 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 - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 378]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=1} State at position 1 is {splverifierCounter=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3e6428b9=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@c2a2823=0, tmp=0, tmp___0=0, NULL=0, head=0, pumpRunning=0, NULL=1, retValue_acc=0, retValue_acc=1, retValue_acc=1, methaneLevelCritical=0, retValue_acc=0, \result=1, retValue_acc=1, tmp=1, \result=1, tmp=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@22f66e5e=0, tmp=1, tmp___2=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@56f9260f=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@68f36d0e=0, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@782bb639=0, cleanupTimeShifts=4, switchedOnBeforeTS=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6126b45e=0, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@358e1fa1=0, tmp___0=0, tmp=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@560fbd0b=0, head=0, \result=1, tmp___1=29, NULL=0, waterLevel=1, systemActive=1, tmp=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@32c51b1c=0, tmp___0=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@259850e1=0, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@90db5b4=29, tmp=0, retValue_acc=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 378]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L61] int pumpRunning = 0; [L62] int systemActive = 1; [L316] int switchedOnBeforeTS ; [L604] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L801] int waterLevel = 1; [L802] int methaneLevelCritical = 0; [L904] int cleanupTimeShifts = 4; [L981] int retValue_acc ; [L982] int tmp ; [L986] FCALL select_helpers() [L987] FCALL select_features() [L988] CALL, EXPR valid_product() [L1039] int retValue_acc ; [L1042] retValue_acc = 1 [L1043] return (retValue_acc); [L988] RET, EXPR valid_product() [L988] tmp = valid_product() [L990] COND TRUE \read(tmp) [L992] FCALL setup() [L993] CALL runTest() [L971] CALL __utac_acc__Specification5_spec__1() [L321] switchedOnBeforeTS = 0 [L971] RET __utac_acc__Specification5_spec__1() [L972] CALL test() [L369] int splverifierCounter ; [L370] int tmp ; [L371] int tmp___0 ; [L372] int tmp___1 ; [L373] int tmp___2 ; [L376] splverifierCounter = 0 Loop: [L378] COND TRUE 1 [L380] COND TRUE splverifierCounter < 4 [L386] tmp = __VERIFIER_nondet_int() [L388] COND FALSE !(\read(tmp)) [L396] tmp___0 = __VERIFIER_nondet_int() [L398] COND FALSE !(\read(tmp___0)) [L406] tmp___2 = __VERIFIER_nondet_int() [L408] COND FALSE !(\read(tmp___2)) [L414] tmp___1 = __VERIFIER_nondet_int() [L416] COND TRUE \read(tmp___1) [L423] CALL timeShift() [L71] CALL __utac_acc__Specification5_spec__2() [L330] CALL, EXPR isPumpRunning() [L223] int retValue_acc ; [L226] retValue_acc = pumpRunning [L227] return (retValue_acc); [L330] RET, EXPR isPumpRunning() [L330] switchedOnBeforeTS = isPumpRunning() [L71] RET __utac_acc__Specification5_spec__2() [L73] COND FALSE !(\read(pumpRunning)) [L80] COND TRUE \read(systemActive) [L82] CALL processEnvironment() [L154] int tmp ; [L157] COND FALSE !(\read(pumpRunning)) [L172] CALL processEnvironment__wrappee__methaneQuery() [L128] int tmp ; [L131] COND FALSE !(\read(pumpRunning)) [L146] CALL processEnvironment__wrappee__highWaterSensor() [L102] int tmp ; [L105] COND TRUE ! pumpRunning [L107] CALL, EXPR isHighWaterLevel() [L268] int retValue_acc ; [L269] int tmp ; [L270] int tmp___0 ; [L274] CALL, EXPR isHighWaterSensorDry() [L881] int retValue_acc ; [L884] COND TRUE waterLevel < 2 [L885] retValue_acc = 1 [L886] return (retValue_acc); [L274] RET, EXPR isHighWaterSensorDry() [L274] tmp = isHighWaterSensorDry() [L276] COND TRUE \read(tmp) [L277] tmp___0 = 0 [L281] retValue_acc = tmp___0 [L282] return (retValue_acc); [L107] RET, EXPR isHighWaterLevel() [L107] tmp = isHighWaterLevel() [L109] COND FALSE !(\read(tmp)) [L115] FCALL processEnvironment__wrappee__base() [L146] RET processEnvironment__wrappee__highWaterSensor() [L172] RET processEnvironment__wrappee__methaneQuery() [L82] RET processEnvironment() [L88] CALL __utac_acc__Specification5_spec__3() [L336] int tmp ; [L337] int tmp___0 ; [L341] CALL, EXPR getWaterLevel() [L872] int retValue_acc ; [L875] retValue_acc = waterLevel [L876] return (retValue_acc); [L341] RET, EXPR getWaterLevel() [L341] tmp = getWaterLevel() [L343] COND TRUE tmp != 2 [L345] CALL, EXPR isPumpRunning() [L223] int retValue_acc ; [L226] retValue_acc = pumpRunning [L227] return (retValue_acc); [L345] RET, EXPR isPumpRunning() [L345] tmp___0 = isPumpRunning() [L347] COND FALSE !(\read(tmp___0)) [L88] RET __utac_acc__Specification5_spec__3() [L423] RET timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2021-12-19 19:13:11,432 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)