./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/minepump_spec5_product21.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 839c364b 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_product21.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 17e2337fd721ce0bbba718ba7912b3f6432f0e21a2bb22404280d45b14116418 --- Real Ultimate output --- This is Ultimate 0.2.2-839c364b5d67a0f615c82cb70ab247790648d4a9-839c364 [2021-12-14 23:39:47,264 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-14 23:39:47,266 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-14 23:39:47,297 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-14 23:39:47,297 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-14 23:39:47,300 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-14 23:39:47,301 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-14 23:39:47,306 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-14 23:39:47,308 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-14 23:39:47,313 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-14 23:39:47,314 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-14 23:39:47,315 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-14 23:39:47,316 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-14 23:39:47,318 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-14 23:39:47,320 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-14 23:39:47,324 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-14 23:39:47,326 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-14 23:39:47,327 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-14 23:39:47,328 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-14 23:39:47,332 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-14 23:39:47,334 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-14 23:39:47,337 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-14 23:39:47,337 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-14 23:39:47,339 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-14 23:39:47,340 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-14 23:39:47,345 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-14 23:39:47,345 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-14 23:39:47,346 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-14 23:39:47,347 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-14 23:39:47,347 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-14 23:39:47,348 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-14 23:39:47,349 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-14 23:39:47,350 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-14 23:39:47,351 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-14 23:39:47,352 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-14 23:39:47,352 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-14 23:39:47,353 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-14 23:39:47,353 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-14 23:39:47,353 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-14 23:39:47,354 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-14 23:39:47,354 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-14 23:39:47,355 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-12-14 23:39:47,387 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-14 23:39:47,387 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-14 23:39:47,388 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-14 23:39:47,388 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-14 23:39:47,389 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-14 23:39:47,389 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-14 23:39:47,390 INFO L138 SettingsManager]: * Use SBE=true [2021-12-14 23:39:47,390 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-12-14 23:39:47,390 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-12-14 23:39:47,390 INFO L138 SettingsManager]: * Use old map elimination=false [2021-12-14 23:39:47,391 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-12-14 23:39:47,391 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-12-14 23:39:47,391 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-12-14 23:39:47,392 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-14 23:39:47,392 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-14 23:39:47,392 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-12-14 23:39:47,392 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-14 23:39:47,392 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-14 23:39:47,392 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-14 23:39:47,393 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-12-14 23:39:47,393 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-12-14 23:39:47,393 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-12-14 23:39:47,393 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-14 23:39:47,393 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-14 23:39:47,394 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-12-14 23:39:47,394 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-14 23:39:47,394 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-12-14 23:39:47,394 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-14 23:39:47,394 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-14 23:39:47,395 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-14 23:39:47,395 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-14 23:39:47,395 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-14 23:39:47,396 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-12-14 23:39:47,396 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 17e2337fd721ce0bbba718ba7912b3f6432f0e21a2bb22404280d45b14116418 [2021-12-14 23:39:47,643 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-14 23:39:47,668 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-14 23:39:47,670 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-14 23:39:47,671 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-14 23:39:47,672 INFO L275 PluginConnector]: CDTParser initialized [2021-12-14 23:39:47,673 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec5_product21.cil.c [2021-12-14 23:39:47,738 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/43fd842e0/db8a50f59cd24eaa8fdb140df37ea6ab/FLAG2f1b93fa1 [2021-12-14 23:39:48,141 INFO L306 CDTParser]: Found 1 translation units. [2021-12-14 23:39:48,142 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec5_product21.cil.c [2021-12-14 23:39:48,152 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/43fd842e0/db8a50f59cd24eaa8fdb140df37ea6ab/FLAG2f1b93fa1 [2021-12-14 23:39:48,172 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/43fd842e0/db8a50f59cd24eaa8fdb140df37ea6ab [2021-12-14 23:39:48,174 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-14 23:39:48,176 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-14 23:39:48,178 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-14 23:39:48,179 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-14 23:39:48,190 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-14 23:39:48,190 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 11:39:48" (1/1) ... [2021-12-14 23:39:48,191 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7eb1de80 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:39:48, skipping insertion in model container [2021-12-14 23:39:48,192 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 11:39:48" (1/1) ... [2021-12-14 23:39:48,197 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-14 23:39:48,246 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-14 23:39:48,366 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec5_product21.cil.c[3727,3740] [2021-12-14 23:39:48,473 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-14 23:39:48,486 INFO L203 MainTranslator]: Completed pre-run [2021-12-14 23:39:48,521 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_product21.cil.c[3727,3740] [2021-12-14 23:39:48,560 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-14 23:39:48,576 INFO L208 MainTranslator]: Completed translation [2021-12-14 23:39:48,577 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:39:48 WrapperNode [2021-12-14 23:39:48,577 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-14 23:39:48,578 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-14 23:39:48,578 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-14 23:39:48,578 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-14 23:39:48,584 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:39:48" (1/1) ... [2021-12-14 23:39:48,595 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:39:48" (1/1) ... [2021-12-14 23:39:48,648 INFO L137 Inliner]: procedures = 55, calls = 156, calls flagged for inlining = 53, calls inlined = 84, statements flattened = 597 [2021-12-14 23:39:48,649 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-14 23:39:48,649 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-14 23:39:48,650 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-14 23:39:48,650 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-14 23:39:48,657 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:39:48" (1/1) ... [2021-12-14 23:39:48,657 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:39:48" (1/1) ... [2021-12-14 23:39:48,660 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:39:48" (1/1) ... [2021-12-14 23:39:48,661 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:39:48" (1/1) ... [2021-12-14 23:39:48,668 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:39:48" (1/1) ... [2021-12-14 23:39:48,674 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:39:48" (1/1) ... [2021-12-14 23:39:48,676 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:39:48" (1/1) ... [2021-12-14 23:39:48,680 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-14 23:39:48,681 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-14 23:39:48,681 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-14 23:39:48,681 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-14 23:39:48,682 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:39:48" (1/1) ... [2021-12-14 23:39:48,702 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-14 23:39:48,724 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 23:39:48,744 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) [2021-12-14 23:39:48,771 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 [2021-12-14 23:39:48,807 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-14 23:39:48,807 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-14 23:39:48,807 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-14 23:39:48,807 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-14 23:39:48,915 INFO L236 CfgBuilder]: Building ICFG [2021-12-14 23:39:48,917 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-14 23:39:49,315 INFO L277 CfgBuilder]: Performing block encoding [2021-12-14 23:39:49,322 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-14 23:39:49,322 INFO L301 CfgBuilder]: Removed 2 assume(true) statements. [2021-12-14 23:39:49,324 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 11:39:49 BoogieIcfgContainer [2021-12-14 23:39:49,324 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-14 23:39:49,325 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-12-14 23:39:49,325 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-12-14 23:39:49,328 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-12-14 23:39:49,329 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-14 23:39:49,329 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 14.12 11:39:48" (1/3) ... [2021-12-14 23:39:49,330 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@26153fa7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 14.12 11:39:49, skipping insertion in model container [2021-12-14 23:39:49,330 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-14 23:39:49,330 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:39:48" (2/3) ... [2021-12-14 23:39:49,330 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@26153fa7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 14.12 11:39:49, skipping insertion in model container [2021-12-14 23:39:49,330 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-14 23:39:49,331 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 11:39:49" (3/3) ... [2021-12-14 23:39:49,332 INFO L388 chiAutomizerObserver]: Analyzing ICFG minepump_spec5_product21.cil.c [2021-12-14 23:39:49,379 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-12-14 23:39:49,379 INFO L360 BuchiCegarLoop]: Hoare is false [2021-12-14 23:39:49,379 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-12-14 23:39:49,379 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-12-14 23:39:49,380 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-12-14 23:39:49,380 INFO L364 BuchiCegarLoop]: Difference is false [2021-12-14 23:39:49,380 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-12-14 23:39:49,380 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-12-14 23:39:49,400 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 160 states, 159 states have (on average 1.3459119496855345) internal successors, (214), 159 states have internal predecessors, (214), 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) [2021-12-14 23:39:49,440 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 102 [2021-12-14 23:39:49,440 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-14 23:39:49,440 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-14 23:39:49,448 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 23:39:49,448 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 23:39:49,448 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-12-14 23:39:49,451 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 160 states, 159 states have (on average 1.3459119496855345) internal successors, (214), 159 states have internal predecessors, (214), 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) [2021-12-14 23:39:49,464 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 102 [2021-12-14 23:39:49,467 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-14 23:39:49,467 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-14 23:39:49,469 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 23:39:49,469 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 23:39:49,478 INFO L791 eck$LassoCheckResult]: Stem: 143#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(13, 4);call #Ultimate.allocInit(7, 5);call write~init~int(44, 5, 0, 1);call write~init~int(77, 5, 1, 1);call write~init~int(101, 5, 2, 1);call write~init~int(116, 5, 3, 1);call write~init~int(104, 5, 4, 1);call write~init~int(58, 5, 5, 1);call write~init~int(0, 5, 6, 1);call #Ultimate.allocInit(5, 6);call write~init~int(67, 6, 0, 1);call write~init~int(82, 6, 1, 1);call write~init~int(73, 6, 2, 1);call write~init~int(84, 6, 3, 1);call write~init~int(0, 6, 4, 1);call #Ultimate.allocInit(3, 7);call write~init~int(79, 7, 0, 1);call write~init~int(75, 7, 1, 1);call write~init~int(0, 7, 2, 1);call #Ultimate.allocInit(2, 8);call write~init~int(41, 8, 0, 1);call write~init~int(0, 8, 1, 1);call #Ultimate.allocInit(30, 9);call #Ultimate.allocInit(9, 10);call #Ultimate.allocInit(21, 11);call #Ultimate.allocInit(30, 12);call #Ultimate.allocInit(9, 13);call #Ultimate.allocInit(21, 14);call #Ultimate.allocInit(30, 15);call #Ultimate.allocInit(9, 16);call #Ultimate.allocInit(25, 17);call #Ultimate.allocInit(30, 18);call #Ultimate.allocInit(9, 19);call #Ultimate.allocInit(25, 20);call #Ultimate.allocInit(13, 21);call #Ultimate.allocInit(3, 22);call write~init~int(79, 22, 0, 1);call write~init~int(110, 22, 1, 1);call write~init~int(0, 22, 2, 1);call #Ultimate.allocInit(4, 23);call write~init~int(79, 23, 0, 1);call write~init~int(102, 23, 1, 1);call write~init~int(102, 23, 2, 1);call write~init~int(0, 23, 3, 1);call #Ultimate.allocInit(7, 24);call write~init~int(44, 24, 0, 1);call write~init~int(80, 24, 1, 1);call write~init~int(117, 24, 2, 1);call write~init~int(109, 24, 3, 1);call write~init~int(112, 24, 4, 1);call write~init~int(58, 24, 5, 1);call write~init~int(0, 24, 6, 1);call #Ultimate.allocInit(3, 25);call write~init~int(79, 25, 0, 1);call write~init~int(110, 25, 1, 1);call write~init~int(0, 25, 2, 1);call #Ultimate.allocInit(4, 26);call write~init~int(79, 26, 0, 1);call write~init~int(102, 26, 1, 1);call write~init~int(102, 26, 2, 1);call write~init~int(0, 26, 3, 1);call #Ultimate.allocInit(3, 27);call write~init~int(41, 27, 0, 1);call write~init~int(32, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(10, 28, 0, 1);call write~init~int(0, 28, 1, 1);~cleanupTimeShifts~0 := 4;~switchedOnBeforeTS~0 := 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1; 50#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret4#1, main_~retValue_acc~0#1, main_~tmp~0#1;havoc main_~retValue_acc~0#1;havoc main_~tmp~0#1;assume { :begin_inline_select_helpers } true; 40#L332true assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 78#L325true assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~5#1;havoc valid_product_~retValue_acc~5#1;valid_product_~retValue_acc~5#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~5#1; 125#L340true main_#t~ret4#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~0#1 := main_#t~ret4#1;havoc main_#t~ret4#1; 123#L142true assume 0 != main_~tmp~0#1;assume { :begin_inline_setup } true; 137#L113true assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0; 19#L165true assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet37#1, test_#t~nondet38#1, test_#t~nondet39#1, test_#t~nondet40#1, test_~splverifierCounter~0#1, test_~tmp~5#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~5#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 88#L721-2true [2021-12-14 23:39:49,480 INFO L793 eck$LassoCheckResult]: Loop: 88#L721-2true assume !false; 68#L722true assume test_~splverifierCounter~0#1 < 4; 159#L723true test_~tmp~5#1 := test_#t~nondet37#1;havoc test_#t~nondet37#1; 116#L731true assume !(0 != test_~tmp~5#1); 6#L731-2true test_~tmp___0~1#1 := test_#t~nondet38#1;havoc test_#t~nondet38#1; 151#L741true assume !(0 != test_~tmp___0~1#1); 90#L741-2true test_~tmp___2~0#1 := test_#t~nondet39#1;havoc test_#t~nondet39#1; 33#L751true assume 0 != test_~tmp___2~0#1; 63#L757-2true assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret5#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~10#1;havoc isPumpRunning_~retValue_acc~10#1;isPumpRunning_~retValue_acc~10#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~10#1; 52#L899true __utac_acc__Specification5_spec__2_#t~ret5#1 := isPumpRunning_#res#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret5#1;havoc __utac_acc__Specification5_spec__2_#t~ret5#1; 7#L175true assume { :end_inline___utac_acc__Specification5_spec__2 } true; 161#L788true assume !(0 != ~pumpRunning~0); 81#L788-2true assume !(0 != ~systemActive~0); 31#L795-1true assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret6#1, __utac_acc__Specification5_spec__3_#t~ret7#1, __utac_acc__Specification5_spec__3_~tmp~1#1, __utac_acc__Specification5_spec__3_~tmp___0~0#1;havoc __utac_acc__Specification5_spec__3_~tmp~1#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~0#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~2#1;havoc getWaterLevel_~retValue_acc~2#1;getWaterLevel_~retValue_acc~2#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~2#1; 60#L296true __utac_acc__Specification5_spec__3_#t~ret6#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~1#1 := __utac_acc__Specification5_spec__3_#t~ret6#1;havoc __utac_acc__Specification5_spec__3_#t~ret6#1; 74#L186true assume !(2 != __utac_acc__Specification5_spec__3_~tmp~1#1); 37#L186-1true assume { :end_inline___utac_acc__Specification5_spec__3 } true; 98#L805true assume { :end_inline_timeShift } true; 88#L721-2true [2021-12-14 23:39:49,489 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 23:39:49,494 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 1 times [2021-12-14 23:39:49,501 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 23:39:49,502 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1037752333] [2021-12-14 23:39:49,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 23:39:49,503 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 23:39:49,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-14 23:39:49,649 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-14 23:39:49,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-14 23:39:49,703 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-14 23:39:49,706 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 23:39:49,706 INFO L85 PathProgramCache]: Analyzing trace with hash 1727858828, now seen corresponding path program 1 times [2021-12-14 23:39:49,707 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 23:39:49,708 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1048446863] [2021-12-14 23:39:49,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 23:39:49,708 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 23:39:49,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-14 23:39:49,729 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-14 23:39:49,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-14 23:39:49,742 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-14 23:39:49,744 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 23:39:49,745 INFO L85 PathProgramCache]: Analyzing trace with hash 388506421, now seen corresponding path program 1 times [2021-12-14 23:39:49,745 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 23:39:49,746 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2081096670] [2021-12-14 23:39:49,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 23:39:49,746 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 23:39:49,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 23:39:49,902 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-14 23:39:49,902 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 23:39:49,903 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2081096670] [2021-12-14 23:39:49,903 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2081096670] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 23:39:49,903 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 23:39:49,904 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-14 23:39:49,904 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [907818253] [2021-12-14 23:39:49,905 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 23:39:50,099 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 23:39:50,123 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-14 23:39:50,124 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-12-14 23:39:50,126 INFO L87 Difference]: Start difference. First operand has 160 states, 159 states have (on average 1.3459119496855345) internal successors, (214), 159 states have internal predecessors, (214), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 6 states, 6 states have (on average 4.333333333333333) internal successors, (26), 5 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 23:39:50,177 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 23:39:50,178 INFO L93 Difference]: Finished difference Result 157 states and 200 transitions. [2021-12-14 23:39:50,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-14 23:39:50,183 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 157 states and 200 transitions. [2021-12-14 23:39:50,186 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 98 [2021-12-14 23:39:50,189 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 157 states to 147 states and 190 transitions. [2021-12-14 23:39:50,190 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 147 [2021-12-14 23:39:50,191 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 147 [2021-12-14 23:39:50,191 INFO L73 IsDeterministic]: Start isDeterministic. Operand 147 states and 190 transitions. [2021-12-14 23:39:50,192 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-14 23:39:50,192 INFO L681 BuchiCegarLoop]: Abstraction has 147 states and 190 transitions. [2021-12-14 23:39:50,206 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 147 states and 190 transitions. [2021-12-14 23:39:50,217 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 147 to 147. [2021-12-14 23:39:50,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 147 states, 147 states have (on average 1.2925170068027212) internal successors, (190), 146 states have internal predecessors, (190), 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) [2021-12-14 23:39:50,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147 states to 147 states and 190 transitions. [2021-12-14 23:39:50,219 INFO L704 BuchiCegarLoop]: Abstraction has 147 states and 190 transitions. [2021-12-14 23:39:50,219 INFO L587 BuchiCegarLoop]: Abstraction has 147 states and 190 transitions. [2021-12-14 23:39:50,220 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-12-14 23:39:50,220 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 147 states and 190 transitions. [2021-12-14 23:39:50,221 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 98 [2021-12-14 23:39:50,221 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-14 23:39:50,221 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-14 23:39:50,222 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 23:39:50,222 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] [2021-12-14 23:39:50,222 INFO L791 eck$LassoCheckResult]: Stem: 480#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(13, 4);call #Ultimate.allocInit(7, 5);call write~init~int(44, 5, 0, 1);call write~init~int(77, 5, 1, 1);call write~init~int(101, 5, 2, 1);call write~init~int(116, 5, 3, 1);call write~init~int(104, 5, 4, 1);call write~init~int(58, 5, 5, 1);call write~init~int(0, 5, 6, 1);call #Ultimate.allocInit(5, 6);call write~init~int(67, 6, 0, 1);call write~init~int(82, 6, 1, 1);call write~init~int(73, 6, 2, 1);call write~init~int(84, 6, 3, 1);call write~init~int(0, 6, 4, 1);call #Ultimate.allocInit(3, 7);call write~init~int(79, 7, 0, 1);call write~init~int(75, 7, 1, 1);call write~init~int(0, 7, 2, 1);call #Ultimate.allocInit(2, 8);call write~init~int(41, 8, 0, 1);call write~init~int(0, 8, 1, 1);call #Ultimate.allocInit(30, 9);call #Ultimate.allocInit(9, 10);call #Ultimate.allocInit(21, 11);call #Ultimate.allocInit(30, 12);call #Ultimate.allocInit(9, 13);call #Ultimate.allocInit(21, 14);call #Ultimate.allocInit(30, 15);call #Ultimate.allocInit(9, 16);call #Ultimate.allocInit(25, 17);call #Ultimate.allocInit(30, 18);call #Ultimate.allocInit(9, 19);call #Ultimate.allocInit(25, 20);call #Ultimate.allocInit(13, 21);call #Ultimate.allocInit(3, 22);call write~init~int(79, 22, 0, 1);call write~init~int(110, 22, 1, 1);call write~init~int(0, 22, 2, 1);call #Ultimate.allocInit(4, 23);call write~init~int(79, 23, 0, 1);call write~init~int(102, 23, 1, 1);call write~init~int(102, 23, 2, 1);call write~init~int(0, 23, 3, 1);call #Ultimate.allocInit(7, 24);call write~init~int(44, 24, 0, 1);call write~init~int(80, 24, 1, 1);call write~init~int(117, 24, 2, 1);call write~init~int(109, 24, 3, 1);call write~init~int(112, 24, 4, 1);call write~init~int(58, 24, 5, 1);call write~init~int(0, 24, 6, 1);call #Ultimate.allocInit(3, 25);call write~init~int(79, 25, 0, 1);call write~init~int(110, 25, 1, 1);call write~init~int(0, 25, 2, 1);call #Ultimate.allocInit(4, 26);call write~init~int(79, 26, 0, 1);call write~init~int(102, 26, 1, 1);call write~init~int(102, 26, 2, 1);call write~init~int(0, 26, 3, 1);call #Ultimate.allocInit(3, 27);call write~init~int(41, 27, 0, 1);call write~init~int(32, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(10, 28, 0, 1);call write~init~int(0, 28, 1, 1);~cleanupTimeShifts~0 := 4;~switchedOnBeforeTS~0 := 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1; 413#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret4#1, main_~retValue_acc~0#1, main_~tmp~0#1;havoc main_~retValue_acc~0#1;havoc main_~tmp~0#1;assume { :begin_inline_select_helpers } true; 401#L332 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 402#L325 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~5#1;havoc valid_product_~retValue_acc~5#1;valid_product_~retValue_acc~5#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~5#1; 449#L340 main_#t~ret4#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~0#1 := main_#t~ret4#1;havoc main_#t~ret4#1; 472#L142 assume 0 != main_~tmp~0#1;assume { :begin_inline_setup } true; 473#L113 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0; 364#L165 assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet37#1, test_#t~nondet38#1, test_#t~nondet39#1, test_#t~nondet40#1, test_~splverifierCounter~0#1, test_~tmp~5#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~5#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 365#L721-2 [2021-12-14 23:39:50,223 INFO L793 eck$LassoCheckResult]: Loop: 365#L721-2 assume !false; 436#L722 assume test_~splverifierCounter~0#1 < 4; 437#L723 test_~tmp~5#1 := test_#t~nondet37#1;havoc test_#t~nondet37#1; 467#L731 assume !(0 != test_~tmp~5#1); 339#L731-2 test_~tmp___0~1#1 := test_#t~nondet38#1;havoc test_#t~nondet38#1; 340#L741 assume !(0 != test_~tmp___0~1#1); 428#L741-2 test_~tmp___2~0#1 := test_#t~nondet39#1;havoc test_#t~nondet39#1; 386#L751 assume 0 != test_~tmp___2~0#1; 387#L757-2 assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret5#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~10#1;havoc isPumpRunning_~retValue_acc~10#1;isPumpRunning_~retValue_acc~10#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~10#1; 416#L899 __utac_acc__Specification5_spec__2_#t~ret5#1 := isPumpRunning_#res#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret5#1;havoc __utac_acc__Specification5_spec__2_#t~ret5#1; 343#L175 assume { :end_inline___utac_acc__Specification5_spec__2 } true; 344#L788 assume !(0 != ~pumpRunning~0); 412#L788-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret42#1, processEnvironment_~tmp~7#1;havoc processEnvironment_~tmp~7#1; 380#L846 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__lowWaterSensor } true;havoc processEnvironment__wrappee__lowWaterSensor_#t~ret41#1, processEnvironment__wrappee__lowWaterSensor_~tmp~6#1;havoc processEnvironment__wrappee__lowWaterSensor_~tmp~6#1; 382#L820-2 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true; 468#L812-3 assume { :end_inline_processEnvironment__wrappee__base } true; 351#L820-3 assume { :end_inline_processEnvironment__wrappee__lowWaterSensor } true; 352#L846-1 assume { :end_inline_processEnvironment } true; 355#L795-1 assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret6#1, __utac_acc__Specification5_spec__3_#t~ret7#1, __utac_acc__Specification5_spec__3_~tmp~1#1, __utac_acc__Specification5_spec__3_~tmp___0~0#1;havoc __utac_acc__Specification5_spec__3_~tmp~1#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~0#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~2#1;havoc getWaterLevel_~retValue_acc~2#1;getWaterLevel_~retValue_acc~2#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~2#1; 383#L296 __utac_acc__Specification5_spec__3_#t~ret6#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~1#1 := __utac_acc__Specification5_spec__3_#t~ret6#1;havoc __utac_acc__Specification5_spec__3_#t~ret6#1; 429#L186 assume !(2 != __utac_acc__Specification5_spec__3_~tmp~1#1); 392#L186-1 assume { :end_inline___utac_acc__Specification5_spec__3 } true; 393#L805 assume { :end_inline_timeShift } true; 365#L721-2 [2021-12-14 23:39:50,223 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 23:39:50,224 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 2 times [2021-12-14 23:39:50,224 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 23:39:50,224 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1872945963] [2021-12-14 23:39:50,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 23:39:50,224 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 23:39:50,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-14 23:39:50,235 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-14 23:39:50,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-14 23:39:50,246 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-14 23:39:50,246 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 23:39:50,246 INFO L85 PathProgramCache]: Analyzing trace with hash 740546312, now seen corresponding path program 1 times [2021-12-14 23:39:50,247 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 23:39:50,247 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1889772220] [2021-12-14 23:39:50,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 23:39:50,247 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 23:39:50,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-14 23:39:50,253 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-14 23:39:50,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-14 23:39:50,259 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-14 23:39:50,261 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 23:39:50,261 INFO L85 PathProgramCache]: Analyzing trace with hash 1564212735, now seen corresponding path program 1 times [2021-12-14 23:39:50,262 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 23:39:50,262 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [277320524] [2021-12-14 23:39:50,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 23:39:50,262 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 23:39:50,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 23:39:50,330 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-14 23:39:50,331 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 23:39:50,331 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [277320524] [2021-12-14 23:39:50,331 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [277320524] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 23:39:50,332 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 23:39:50,332 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-14 23:39:50,332 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [717276633] [2021-12-14 23:39:50,333 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 23:39:50,441 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 23:39:50,441 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-14 23:39:50,442 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-14 23:39:50,442 INFO L87 Difference]: Start difference. First operand 147 states and 190 transitions. cyclomatic complexity: 45 Second operand has 5 states, 5 states have (on average 6.2) internal successors, (31), 4 states have internal predecessors, (31), 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) [2021-12-14 23:39:50,577 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 23:39:50,578 INFO L93 Difference]: Finished difference Result 436 states and 566 transitions. [2021-12-14 23:39:50,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-14 23:39:50,579 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 436 states and 566 transitions. [2021-12-14 23:39:50,583 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 266 [2021-12-14 23:39:50,586 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 436 states to 436 states and 566 transitions. [2021-12-14 23:39:50,586 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 436 [2021-12-14 23:39:50,587 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 436 [2021-12-14 23:39:50,587 INFO L73 IsDeterministic]: Start isDeterministic. Operand 436 states and 566 transitions. [2021-12-14 23:39:50,589 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-14 23:39:50,589 INFO L681 BuchiCegarLoop]: Abstraction has 436 states and 566 transitions. [2021-12-14 23:39:50,590 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 436 states and 566 transitions. [2021-12-14 23:39:50,600 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 436 to 285. [2021-12-14 23:39:50,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 285 states, 285 states have (on average 1.287719298245614) internal successors, (367), 284 states have internal predecessors, (367), 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) [2021-12-14 23:39:50,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 285 states to 285 states and 367 transitions. [2021-12-14 23:39:50,617 INFO L704 BuchiCegarLoop]: Abstraction has 285 states and 367 transitions. [2021-12-14 23:39:50,617 INFO L587 BuchiCegarLoop]: Abstraction has 285 states and 367 transitions. [2021-12-14 23:39:50,617 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-12-14 23:39:50,617 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 285 states and 367 transitions. [2021-12-14 23:39:50,619 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 195 [2021-12-14 23:39:50,620 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-14 23:39:50,620 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-14 23:39:50,620 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 23:39:50,621 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] [2021-12-14 23:39:50,622 INFO L791 eck$LassoCheckResult]: Stem: 1090#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(13, 4);call #Ultimate.allocInit(7, 5);call write~init~int(44, 5, 0, 1);call write~init~int(77, 5, 1, 1);call write~init~int(101, 5, 2, 1);call write~init~int(116, 5, 3, 1);call write~init~int(104, 5, 4, 1);call write~init~int(58, 5, 5, 1);call write~init~int(0, 5, 6, 1);call #Ultimate.allocInit(5, 6);call write~init~int(67, 6, 0, 1);call write~init~int(82, 6, 1, 1);call write~init~int(73, 6, 2, 1);call write~init~int(84, 6, 3, 1);call write~init~int(0, 6, 4, 1);call #Ultimate.allocInit(3, 7);call write~init~int(79, 7, 0, 1);call write~init~int(75, 7, 1, 1);call write~init~int(0, 7, 2, 1);call #Ultimate.allocInit(2, 8);call write~init~int(41, 8, 0, 1);call write~init~int(0, 8, 1, 1);call #Ultimate.allocInit(30, 9);call #Ultimate.allocInit(9, 10);call #Ultimate.allocInit(21, 11);call #Ultimate.allocInit(30, 12);call #Ultimate.allocInit(9, 13);call #Ultimate.allocInit(21, 14);call #Ultimate.allocInit(30, 15);call #Ultimate.allocInit(9, 16);call #Ultimate.allocInit(25, 17);call #Ultimate.allocInit(30, 18);call #Ultimate.allocInit(9, 19);call #Ultimate.allocInit(25, 20);call #Ultimate.allocInit(13, 21);call #Ultimate.allocInit(3, 22);call write~init~int(79, 22, 0, 1);call write~init~int(110, 22, 1, 1);call write~init~int(0, 22, 2, 1);call #Ultimate.allocInit(4, 23);call write~init~int(79, 23, 0, 1);call write~init~int(102, 23, 1, 1);call write~init~int(102, 23, 2, 1);call write~init~int(0, 23, 3, 1);call #Ultimate.allocInit(7, 24);call write~init~int(44, 24, 0, 1);call write~init~int(80, 24, 1, 1);call write~init~int(117, 24, 2, 1);call write~init~int(109, 24, 3, 1);call write~init~int(112, 24, 4, 1);call write~init~int(58, 24, 5, 1);call write~init~int(0, 24, 6, 1);call #Ultimate.allocInit(3, 25);call write~init~int(79, 25, 0, 1);call write~init~int(110, 25, 1, 1);call write~init~int(0, 25, 2, 1);call #Ultimate.allocInit(4, 26);call write~init~int(79, 26, 0, 1);call write~init~int(102, 26, 1, 1);call write~init~int(102, 26, 2, 1);call write~init~int(0, 26, 3, 1);call #Ultimate.allocInit(3, 27);call write~init~int(41, 27, 0, 1);call write~init~int(32, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(10, 28, 0, 1);call write~init~int(0, 28, 1, 1);~cleanupTimeShifts~0 := 4;~switchedOnBeforeTS~0 := 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1; 1015#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret4#1, main_~retValue_acc~0#1, main_~tmp~0#1;havoc main_~retValue_acc~0#1;havoc main_~tmp~0#1;assume { :begin_inline_select_helpers } true; 1000#L332 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 1001#L325 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~5#1;havoc valid_product_~retValue_acc~5#1;valid_product_~retValue_acc~5#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~5#1; 1053#L340 main_#t~ret4#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~0#1 := main_#t~ret4#1;havoc main_#t~ret4#1; 1082#L142 assume 0 != main_~tmp~0#1;assume { :begin_inline_setup } true; 1083#L113 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0; 962#L165 assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet37#1, test_#t~nondet38#1, test_#t~nondet39#1, test_#t~nondet40#1, test_~splverifierCounter~0#1, test_~tmp~5#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~5#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 963#L721-2 [2021-12-14 23:39:50,622 INFO L793 eck$LassoCheckResult]: Loop: 963#L721-2 assume !false; 1038#L722 assume test_~splverifierCounter~0#1 < 4; 1039#L723 test_~tmp~5#1 := test_#t~nondet37#1;havoc test_#t~nondet37#1; 1173#L731 assume !(0 != test_~tmp~5#1); 1172#L731-2 test_~tmp___0~1#1 := test_#t~nondet38#1;havoc test_#t~nondet38#1; 1170#L741 assume !(0 != test_~tmp___0~1#1); 1167#L741-2 test_~tmp___2~0#1 := test_#t~nondet39#1;havoc test_#t~nondet39#1; 1162#L751 assume 0 != test_~tmp___2~0#1; 1161#L757-2 assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret5#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~10#1;havoc isPumpRunning_~retValue_acc~10#1;isPumpRunning_~retValue_acc~10#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~10#1; 1159#L899 __utac_acc__Specification5_spec__2_#t~ret5#1 := isPumpRunning_#res#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret5#1;havoc __utac_acc__Specification5_spec__2_#t~ret5#1; 1157#L175 assume { :end_inline___utac_acc__Specification5_spec__2 } true; 1154#L788 assume !(0 != ~pumpRunning~0); 1152#L788-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret42#1, processEnvironment_~tmp~7#1;havoc processEnvironment_~tmp~7#1; 1150#L846 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__lowWaterSensor } true;havoc processEnvironment__wrappee__lowWaterSensor_#t~ret41#1, processEnvironment__wrappee__lowWaterSensor_~tmp~6#1;havoc processEnvironment__wrappee__lowWaterSensor_~tmp~6#1; 1151#L820-2 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true; 1166#L812-3 assume { :end_inline_processEnvironment__wrappee__base } true; 1141#L820-3 assume { :end_inline_processEnvironment__wrappee__lowWaterSensor } true; 1138#L846-1 assume { :end_inline_processEnvironment } true; 1095#L795-1 assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret6#1, __utac_acc__Specification5_spec__3_#t~ret7#1, __utac_acc__Specification5_spec__3_~tmp~1#1, __utac_acc__Specification5_spec__3_~tmp___0~0#1;havoc __utac_acc__Specification5_spec__3_~tmp~1#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~0#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~2#1;havoc getWaterLevel_~retValue_acc~2#1;getWaterLevel_~retValue_acc~2#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~2#1; 1094#L296 __utac_acc__Specification5_spec__3_#t~ret6#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~1#1 := __utac_acc__Specification5_spec__3_#t~ret6#1;havoc __utac_acc__Specification5_spec__3_#t~ret6#1; 1046#L186 assume 2 != __utac_acc__Specification5_spec__3_~tmp~1#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~10#1;havoc isPumpRunning_~retValue_acc~10#1;isPumpRunning_~retValue_acc~10#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~10#1; 1047#L899-1 __utac_acc__Specification5_spec__3_#t~ret7#1 := isPumpRunning_#res#1;assume { :end_inline_isPumpRunning } true;__utac_acc__Specification5_spec__3_~tmp___0~0#1 := __utac_acc__Specification5_spec__3_#t~ret7#1;havoc __utac_acc__Specification5_spec__3_#t~ret7#1; 1137#L190 assume !(0 != __utac_acc__Specification5_spec__3_~tmp___0~0#1); 992#L186-1 assume { :end_inline___utac_acc__Specification5_spec__3 } true; 993#L805 assume { :end_inline_timeShift } true; 963#L721-2 [2021-12-14 23:39:50,623 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 23:39:50,623 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 3 times [2021-12-14 23:39:50,623 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 23:39:50,624 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [469020512] [2021-12-14 23:39:50,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 23:39:50,624 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 23:39:50,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-14 23:39:50,633 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-14 23:39:50,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-14 23:39:50,641 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-14 23:39:50,642 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 23:39:50,642 INFO L85 PathProgramCache]: Analyzing trace with hash -1318662333, now seen corresponding path program 1 times [2021-12-14 23:39:50,642 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 23:39:50,642 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [523742083] [2021-12-14 23:39:50,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 23:39:50,643 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 23:39:50,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-14 23:39:50,651 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-14 23:39:50,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-14 23:39:50,657 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-14 23:39:50,658 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 23:39:50,659 INFO L85 PathProgramCache]: Analyzing trace with hash -49212294, now seen corresponding path program 1 times [2021-12-14 23:39:50,659 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 23:39:50,659 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1127429064] [2021-12-14 23:39:50,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 23:39:50,660 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 23:39:50,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-14 23:39:50,677 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-14 23:39:50,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-14 23:39:50,696 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-14 23:39:53,367 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 14.12 11:39:53 BoogieIcfgContainer [2021-12-14 23:39:53,367 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-12-14 23:39:53,368 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-14 23:39:53,368 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-14 23:39:53,368 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-14 23:39:53,369 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 11:39:49" (3/4) ... [2021-12-14 23:39:53,371 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2021-12-14 23:39:53,422 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-12-14 23:39:53,423 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-14 23:39:53,424 INFO L158 Benchmark]: Toolchain (without parser) took 5247.60ms. Allocated memory was 102.8MB in the beginning and 123.7MB in the end (delta: 21.0MB). Free memory was 63.3MB in the beginning and 67.7MB in the end (delta: -4.4MB). Peak memory consumption was 18.5MB. Max. memory is 16.1GB. [2021-12-14 23:39:53,425 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 102.8MB. Free memory is still 80.5MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-14 23:39:53,425 INFO L158 Benchmark]: CACSL2BoogieTranslator took 398.58ms. Allocated memory is still 102.8MB. Free memory was 63.1MB in the beginning and 44.7MB in the end (delta: 18.4MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2021-12-14 23:39:53,426 INFO L158 Benchmark]: Boogie Procedure Inliner took 71.21ms. Allocated memory is still 102.8MB. Free memory was 44.7MB in the beginning and 41.3MB in the end (delta: 3.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-14 23:39:53,426 INFO L158 Benchmark]: Boogie Preprocessor took 30.46ms. Allocated memory is still 102.8MB. Free memory was 41.3MB in the beginning and 39.0MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-14 23:39:53,428 INFO L158 Benchmark]: RCFGBuilder took 643.73ms. Allocated memory is still 102.8MB. Free memory was 39.0MB in the beginning and 63.4MB in the end (delta: -24.4MB). Peak memory consumption was 13.5MB. Max. memory is 16.1GB. [2021-12-14 23:39:53,429 INFO L158 Benchmark]: BuchiAutomizer took 4042.26ms. Allocated memory was 102.8MB in the beginning and 123.7MB in the end (delta: 21.0MB). Free memory was 63.4MB in the beginning and 70.9MB in the end (delta: -7.5MB). Peak memory consumption was 57.8MB. Max. memory is 16.1GB. [2021-12-14 23:39:53,429 INFO L158 Benchmark]: Witness Printer took 55.20ms. Allocated memory is still 123.7MB. Free memory was 70.9MB in the beginning and 67.7MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-14 23:39:53,431 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 102.8MB. Free memory is still 80.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 398.58ms. Allocated memory is still 102.8MB. Free memory was 63.1MB in the beginning and 44.7MB in the end (delta: 18.4MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 71.21ms. Allocated memory is still 102.8MB. Free memory was 44.7MB in the beginning and 41.3MB in the end (delta: 3.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 30.46ms. Allocated memory is still 102.8MB. Free memory was 41.3MB in the beginning and 39.0MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 643.73ms. Allocated memory is still 102.8MB. Free memory was 39.0MB in the beginning and 63.4MB in the end (delta: -24.4MB). Peak memory consumption was 13.5MB. Max. memory is 16.1GB. * BuchiAutomizer took 4042.26ms. Allocated memory was 102.8MB in the beginning and 123.7MB in the end (delta: 21.0MB). Free memory was 63.4MB in the beginning and 70.9MB in the end (delta: -7.5MB). Peak memory consumption was 57.8MB. Max. memory is 16.1GB. * Witness Printer took 55.20ms. Allocated memory is still 123.7MB. Free memory was 70.9MB in the beginning and 67.7MB 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 2 terminating modules (2 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.2 modules have a trivial ranking function, the largest among these consists of 6 locations. The remainder module has 285 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 3.9s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 3.5s. Construction of modules took 0.0s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 0. Minimization of det autom 2. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 151 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 285 states and ocurred in iteration 2. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1228 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1228 mSDsluCounter, 1093 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 632 mSDsCounter, 27 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 103 IncrementalHoareTripleChecker+Invalid, 130 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 27 mSolverCounterUnsat, 461 mSDtfsCounter, 103 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI0 SFLT0 conc2 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: 721]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=1} State at position 1 is {splverifierCounter=0, NULL=0, head=0, tmp___0=0, pumpRunning=0, NULL=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1118b6c5=0, tmp=0, methaneLevelCritical=0, retValue_acc=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@22e1eba4=0, retValue_acc=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4d1c20a7=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5e942eee=0, \result=1, tmp=1, retValue_acc=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6db428fc=29, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@13029a87=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4916a88a=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@34d16bce=0, tmp___2=29, \result=0, cleanupTimeShifts=4, switchedOnBeforeTS=0, tmp=1, \result=0, tmp___0=0, head=0, \result=1, retValue_acc=1, tmp___1=0, NULL=0, waterLevel=1, systemActive=1, tmp=0, tmp=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@58208c39=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@348890a4=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 721]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L50] int cleanupTimeShifts = 4; [L159] int switchedOnBeforeTS ; [L221] int waterLevel = 1; [L222] int methaneLevelCritical = 0; [L514] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L778] int pumpRunning = 0; [L779] int systemActive = 1; [L133] int retValue_acc ; [L134] int tmp ; [L138] FCALL select_helpers() [L139] FCALL select_features() [L140] CALL, EXPR valid_product() [L336] int retValue_acc ; [L339] retValue_acc = 1 [L340] return (retValue_acc); [L140] RET, EXPR valid_product() [L140] tmp = valid_product() [L142] COND TRUE \read(tmp) [L144] FCALL setup() [L145] CALL runTest() [L123] CALL __utac_acc__Specification5_spec__1() [L164] switchedOnBeforeTS = 0 [L123] RET __utac_acc__Specification5_spec__1() [L124] CALL test() [L712] int splverifierCounter ; [L713] int tmp ; [L714] int tmp___0 ; [L715] int tmp___1 ; [L716] int tmp___2 ; [L719] splverifierCounter = 0 Loop: [L721] COND TRUE 1 [L723] COND TRUE splverifierCounter < 4 [L729] tmp = __VERIFIER_nondet_int() [L731] COND FALSE !(\read(tmp)) [L739] tmp___0 = __VERIFIER_nondet_int() [L741] COND FALSE !(\read(tmp___0)) [L749] tmp___2 = __VERIFIER_nondet_int() [L751] COND TRUE \read(tmp___2) [L764] CALL timeShift() [L786] CALL __utac_acc__Specification5_spec__2() [L173] CALL, EXPR isPumpRunning() [L895] int retValue_acc ; [L898] retValue_acc = pumpRunning [L899] return (retValue_acc); [L173] RET, EXPR isPumpRunning() [L173] switchedOnBeforeTS = isPumpRunning() [L786] RET __utac_acc__Specification5_spec__2() [L788] COND FALSE !(\read(pumpRunning)) [L795] COND TRUE \read(systemActive) [L797] CALL processEnvironment() [L843] int tmp ; [L846] COND FALSE !(\read(pumpRunning)) [L861] CALL processEnvironment__wrappee__lowWaterSensor() [L817] int tmp ; [L820] COND FALSE !(\read(pumpRunning)) [L835] FCALL processEnvironment__wrappee__base() [L861] RET processEnvironment__wrappee__lowWaterSensor() [L797] RET processEnvironment() [L803] CALL __utac_acc__Specification5_spec__3() [L179] int tmp ; [L180] int tmp___0 ; [L184] CALL, EXPR getWaterLevel() [L292] int retValue_acc ; [L295] retValue_acc = waterLevel [L296] return (retValue_acc); [L184] RET, EXPR getWaterLevel() [L184] tmp = getWaterLevel() [L186] COND TRUE tmp != 2 [L188] CALL, EXPR isPumpRunning() [L895] int retValue_acc ; [L898] retValue_acc = pumpRunning [L899] return (retValue_acc); [L188] RET, EXPR isPumpRunning() [L188] tmp___0 = isPumpRunning() [L190] COND FALSE !(\read(tmp___0)) [L803] RET __utac_acc__Specification5_spec__3() [L764] RET timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2021-12-14 23:39:53,466 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)