./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/minepump_spec5_product20.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_product20.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 61c2d7b2f53adc3803e4e62ab44daa78f4a9bdf9ba37b58d516bb40a6cc23cc6 --- Real Ultimate output --- This is Ultimate 0.2.2-839c364b5d67a0f615c82cb70ab247790648d4a9-839c364 [2021-12-14 23:39:47,312 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-14 23:39:47,337 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-14 23:39:47,382 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-14 23:39:47,385 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-14 23:39:47,387 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-14 23:39:47,389 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-14 23:39:47,392 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-14 23:39:47,394 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-14 23:39:47,397 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-14 23:39:47,398 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-14 23:39:47,399 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-14 23:39:47,400 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-14 23:39:47,402 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-14 23:39:47,403 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-14 23:39:47,408 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-14 23:39:47,408 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-14 23:39:47,409 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-14 23:39:47,413 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-14 23:39:47,418 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-14 23:39:47,419 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-14 23:39:47,420 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-14 23:39:47,421 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-14 23:39:47,422 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-14 23:39:47,427 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-14 23:39:47,428 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-14 23:39:47,428 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-14 23:39:47,429 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-14 23:39:47,430 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-14 23:39:47,430 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-14 23:39:47,431 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-14 23:39:47,431 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-14 23:39:47,433 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-14 23:39:47,434 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-14 23:39:47,435 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-14 23:39:47,435 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-14 23:39:47,435 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-14 23:39:47,436 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-14 23:39:47,436 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-14 23:39:47,436 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-14 23:39:47,437 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-14 23:39:47,438 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-12-14 23:39:47,470 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-14 23:39:47,471 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-14 23:39:47,471 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-14 23:39:47,471 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-14 23:39:47,472 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-14 23:39:47,473 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-14 23:39:47,473 INFO L138 SettingsManager]: * Use SBE=true [2021-12-14 23:39:47,473 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-12-14 23:39:47,473 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-12-14 23:39:47,473 INFO L138 SettingsManager]: * Use old map elimination=false [2021-12-14 23:39:47,474 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-12-14 23:39:47,474 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-12-14 23:39:47,475 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-12-14 23:39:47,475 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-14 23:39:47,475 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-14 23:39:47,475 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-12-14 23:39:47,475 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-14 23:39:47,476 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-14 23:39:47,476 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-14 23:39:47,476 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-12-14 23:39:47,476 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-12-14 23:39:47,476 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-12-14 23:39:47,476 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-14 23:39:47,477 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-14 23:39:47,477 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-12-14 23:39:47,477 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-14 23:39:47,477 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-12-14 23:39:47,477 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-14 23:39:47,478 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-14 23:39:47,478 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-14 23:39:47,478 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-14 23:39:47,478 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-14 23:39:47,479 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-12-14 23:39:47,479 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 61c2d7b2f53adc3803e4e62ab44daa78f4a9bdf9ba37b58d516bb40a6cc23cc6 [2021-12-14 23:39:47,688 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-14 23:39:47,714 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-14 23:39:47,716 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-14 23:39:47,717 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-14 23:39:47,718 INFO L275 PluginConnector]: CDTParser initialized [2021-12-14 23:39:47,719 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec5_product20.cil.c [2021-12-14 23:39:47,774 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d418c4719/7a9ebc72be3f48f9b3baafe07f7bc85e/FLAG3ff8e8026 [2021-12-14 23:39:48,130 INFO L306 CDTParser]: Found 1 translation units. [2021-12-14 23:39:48,130 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec5_product20.cil.c [2021-12-14 23:39:48,141 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d418c4719/7a9ebc72be3f48f9b3baafe07f7bc85e/FLAG3ff8e8026 [2021-12-14 23:39:48,532 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d418c4719/7a9ebc72be3f48f9b3baafe07f7bc85e [2021-12-14 23:39:48,533 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-14 23:39:48,534 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-14 23:39:48,536 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-14 23:39:48,536 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-14 23:39:48,538 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-14 23:39:48,539 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 11:39:48" (1/1) ... [2021-12-14 23:39:48,540 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3128a0c 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 23:39:48,540 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 11:39:48" (1/1) ... [2021-12-14 23:39:48,546 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-14 23:39:48,594 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-14 23:39:48,781 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_product20.cil.c[13937,13950] [2021-12-14 23:39:48,799 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-14 23:39:48,807 INFO L203 MainTranslator]: Completed pre-run [2021-12-14 23:39:48,881 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_product20.cil.c[13937,13950] [2021-12-14 23:39:48,898 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-14 23:39:48,920 INFO L208 MainTranslator]: Completed translation [2021-12-14 23:39:48,920 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:39:48 WrapperNode [2021-12-14 23:39:48,921 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-14 23:39:48,922 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-14 23:39:48,922 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-14 23:39:48,922 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-14 23:39:48,928 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 23:39:48,948 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 23:39:48,994 INFO L137 Inliner]: procedures = 56, calls = 155, calls flagged for inlining = 52, calls inlined = 57, statements flattened = 427 [2021-12-14 23:39:48,997 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-14 23:39:48,998 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-14 23:39:48,998 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-14 23:39:48,998 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-14 23:39:49,004 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 23:39:49,004 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 23:39:49,007 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 23:39:49,007 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 23:39:49,012 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 23:39:49,017 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 23:39:49,018 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 23:39:49,021 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-14 23:39:49,021 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-14 23:39:49,022 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-14 23:39:49,022 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-14 23:39:49,023 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 23:39:49,035 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-14 23:39:49,042 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 23:39:49,052 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 23:39:49,059 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 23:39:49,080 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-14 23:39:49,080 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-14 23:39:49,080 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-14 23:39:49,080 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-14 23:39:49,131 INFO L236 CfgBuilder]: Building ICFG [2021-12-14 23:39:49,132 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-14 23:39:49,478 INFO L277 CfgBuilder]: Performing block encoding [2021-12-14 23:39:49,485 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-14 23:39:49,485 INFO L301 CfgBuilder]: Removed 2 assume(true) statements. [2021-12-14 23:39:49,487 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 11:39:49 BoogieIcfgContainer [2021-12-14 23:39:49,487 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-14 23:39:49,488 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-12-14 23:39:49,488 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-12-14 23:39:49,492 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-12-14 23:39:49,493 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-14 23:39:49,493 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 14.12 11:39:48" (1/3) ... [2021-12-14 23:39:49,495 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@74dcd324 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 23:39:49,496 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-14 23:39:49,496 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 23:39:49,496 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@74dcd324 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 23:39:49,496 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-14 23:39:49,497 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 23:39:49,498 INFO L388 chiAutomizerObserver]: Analyzing ICFG minepump_spec5_product20.cil.c [2021-12-14 23:39:49,537 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-12-14 23:39:49,538 INFO L360 BuchiCegarLoop]: Hoare is false [2021-12-14 23:39:49,538 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-12-14 23:39:49,538 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-12-14 23:39:49,538 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-12-14 23:39:49,538 INFO L364 BuchiCegarLoop]: Difference is false [2021-12-14 23:39:49,539 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-12-14 23:39:49,539 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-12-14 23:39:49,561 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 117 states, 116 states have (on average 1.353448275862069) internal successors, (157), 116 states have internal predecessors, (157), 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 23:39:49,595 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 75 [2021-12-14 23:39:49,596 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-14 23:39:49,596 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-14 23:39:49,602 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 23:39:49,602 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] [2021-12-14 23:39:49,602 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-12-14 23:39:49,603 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 117 states, 116 states have (on average 1.353448275862069) internal successors, (157), 116 states have internal predecessors, (157), 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 23:39:49,618 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 75 [2021-12-14 23:39:49,618 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-14 23:39:49,618 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-14 23:39:49,619 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 23:39:49,620 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] [2021-12-14 23:39:49,629 INFO L791 eck$LassoCheckResult]: Stem: 106#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);call #Ultimate.allocInit(13, 16);call #Ultimate.allocInit(7, 17);call write~init~int(44, 17, 0, 1);call write~init~int(77, 17, 1, 1);call write~init~int(101, 17, 2, 1);call write~init~int(116, 17, 3, 1);call write~init~int(104, 17, 4, 1);call write~init~int(58, 17, 5, 1);call write~init~int(0, 17, 6, 1);call #Ultimate.allocInit(5, 18);call write~init~int(67, 18, 0, 1);call write~init~int(82, 18, 1, 1);call write~init~int(73, 18, 2, 1);call write~init~int(84, 18, 3, 1);call write~init~int(0, 18, 4, 1);call #Ultimate.allocInit(3, 19);call write~init~int(79, 19, 0, 1);call write~init~int(75, 19, 1, 1);call write~init~int(0, 19, 2, 1);call #Ultimate.allocInit(2, 20);call write~init~int(41, 20, 0, 1);call write~init~int(0, 20, 1, 1);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);~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~switchedOnBeforeTS~0 := 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1; 35#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret36#1, main_~retValue_acc~8#1, main_~tmp~4#1;havoc main_~retValue_acc~8#1;havoc main_~tmp~4#1;assume { :begin_inline_select_helpers } true; 84#L588true assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 114#L581true assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~7#1;havoc valid_product_~retValue_acc~7#1;valid_product_~retValue_acc~7#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~7#1; 43#L596true main_#t~ret36#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~4#1 := main_#t~ret36#1;havoc main_#t~ret36#1; 44#L696true assume 0 != main_~tmp~4#1;assume { :begin_inline_setup } true; 101#L671true assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0; 36#L520true 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; 113#L722-2true [2021-12-14 23:39:49,631 INFO L793 eck$LassoCheckResult]: Loop: 113#L722-2true assume !false; 112#L723true assume test_~splverifierCounter~0#1 < 4; 21#L724true test_~tmp~5#1 := test_#t~nondet37#1;havoc test_#t~nondet37#1; 30#L732true assume !(0 != test_~tmp~5#1); 95#L732-2true test_~tmp___0~1#1 := test_#t~nondet38#1;havoc test_#t~nondet38#1; 34#L742true assume !(0 != test_~tmp___0~1#1); 73#L742-2true test_~tmp___2~0#1 := test_#t~nondet39#1;havoc test_#t~nondet39#1; 65#L752true assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 58#L957true assume { :end_inline_startSystem } true; 102#L760-2true assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret32#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; 46#L878true __utac_acc__Specification5_spec__2_#t~ret32#1 := isPumpRunning_#res#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret32#1;havoc __utac_acc__Specification5_spec__2_#t~ret32#1; 38#L530true assume { :end_inline___utac_acc__Specification5_spec__2 } true; 37#L793true assume !(0 != ~pumpRunning~0); 63#L793-2true assume !(0 != ~systemActive~0); 105#L800-1true assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret33#1, __utac_acc__Specification5_spec__3_#t~ret34#1, __utac_acc__Specification5_spec__3_~tmp~3#1, __utac_acc__Specification5_spec__3_~tmp___0~0#1;havoc __utac_acc__Specification5_spec__3_~tmp~3#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~0#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~4#1;havoc getWaterLevel_~retValue_acc~4#1;getWaterLevel_~retValue_acc~4#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~4#1; 83#L498true __utac_acc__Specification5_spec__3_#t~ret33#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~3#1 := __utac_acc__Specification5_spec__3_#t~ret33#1;havoc __utac_acc__Specification5_spec__3_#t~ret33#1; 76#L541true assume !(2 != __utac_acc__Specification5_spec__3_~tmp~3#1); 64#L541-1true assume { :end_inline___utac_acc__Specification5_spec__3 } true; 5#L810true assume { :end_inline_timeShift } true; 113#L722-2true [2021-12-14 23:39:49,641 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 23:39:49,642 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 1 times [2021-12-14 23:39:49,654 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 23:39:49,655 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1469001267] [2021-12-14 23:39:49,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 23:39:49,657 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 23:39:49,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-14 23:39:49,795 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-14 23:39:49,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-14 23:39:49,840 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-14 23:39:49,843 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 23:39:49,843 INFO L85 PathProgramCache]: Analyzing trace with hash 2121698635, now seen corresponding path program 1 times [2021-12-14 23:39:49,844 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 23:39:49,845 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [467664105] [2021-12-14 23:39:49,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 23:39:49,845 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 23:39:49,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 23:39:49,924 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 23:39:49,925 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 23:39:49,925 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [467664105] [2021-12-14 23:39:49,925 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [467664105] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 23:39:49,926 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 23:39:49,926 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-14 23:39:49,926 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1418907203] [2021-12-14 23:39:49,927 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 23:39:49,931 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-12-14 23:39:49,932 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 23:39:49,960 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-14 23:39:49,961 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-14 23:39:49,963 INFO L87 Difference]: Start difference. First operand has 117 states, 116 states have (on average 1.353448275862069) internal successors, (157), 116 states have internal predecessors, (157), 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 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 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 23:39:50,044 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 23:39:50,045 INFO L93 Difference]: Finished difference Result 218 states and 280 transitions. [2021-12-14 23:39:50,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-14 23:39:50,050 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 218 states and 280 transitions. [2021-12-14 23:39:50,058 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 140 [2021-12-14 23:39:50,067 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 218 states to 198 states and 259 transitions. [2021-12-14 23:39:50,068 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 198 [2021-12-14 23:39:50,069 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 198 [2021-12-14 23:39:50,069 INFO L73 IsDeterministic]: Start isDeterministic. Operand 198 states and 259 transitions. [2021-12-14 23:39:50,071 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-14 23:39:50,071 INFO L681 BuchiCegarLoop]: Abstraction has 198 states and 259 transitions. [2021-12-14 23:39:50,084 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 198 states and 259 transitions. [2021-12-14 23:39:50,100 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 198 to 195. [2021-12-14 23:39:50,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 195 states, 195 states have (on average 1.3076923076923077) internal successors, (255), 194 states have internal predecessors, (255), 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 23:39:50,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 195 states to 195 states and 255 transitions. [2021-12-14 23:39:50,116 INFO L704 BuchiCegarLoop]: Abstraction has 195 states and 255 transitions. [2021-12-14 23:39:50,116 INFO L587 BuchiCegarLoop]: Abstraction has 195 states and 255 transitions. [2021-12-14 23:39:50,116 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-12-14 23:39:50,117 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 195 states and 255 transitions. [2021-12-14 23:39:50,120 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 137 [2021-12-14 23:39:50,120 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-14 23:39:50,120 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-14 23:39:50,120 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 23:39:50,121 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] [2021-12-14 23:39:50,121 INFO L791 eck$LassoCheckResult]: Stem: 450#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);call #Ultimate.allocInit(13, 16);call #Ultimate.allocInit(7, 17);call write~init~int(44, 17, 0, 1);call write~init~int(77, 17, 1, 1);call write~init~int(101, 17, 2, 1);call write~init~int(116, 17, 3, 1);call write~init~int(104, 17, 4, 1);call write~init~int(58, 17, 5, 1);call write~init~int(0, 17, 6, 1);call #Ultimate.allocInit(5, 18);call write~init~int(67, 18, 0, 1);call write~init~int(82, 18, 1, 1);call write~init~int(73, 18, 2, 1);call write~init~int(84, 18, 3, 1);call write~init~int(0, 18, 4, 1);call #Ultimate.allocInit(3, 19);call write~init~int(79, 19, 0, 1);call write~init~int(75, 19, 1, 1);call write~init~int(0, 19, 2, 1);call #Ultimate.allocInit(2, 20);call write~init~int(41, 20, 0, 1);call write~init~int(0, 20, 1, 1);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);~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~switchedOnBeforeTS~0 := 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1; 394#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret36#1, main_~retValue_acc~8#1, main_~tmp~4#1;havoc main_~retValue_acc~8#1;havoc main_~tmp~4#1;assume { :begin_inline_select_helpers } true; 395#L588 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 439#L581 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~7#1;havoc valid_product_~retValue_acc~7#1;valid_product_~retValue_acc~7#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~7#1; 407#L596 main_#t~ret36#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~4#1 := main_#t~ret36#1;havoc main_#t~ret36#1; 408#L696 assume 0 != main_~tmp~4#1;assume { :begin_inline_setup } true; 409#L671 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0; 396#L520 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; 347#L722-2 [2021-12-14 23:39:50,121 INFO L793 eck$LassoCheckResult]: Loop: 347#L722-2 assume !false; 472#L723 assume test_~splverifierCounter~0#1 < 4; 471#L724 test_~tmp~5#1 := test_#t~nondet37#1;havoc test_#t~nondet37#1; 469#L732 assume !(0 != test_~tmp~5#1); 467#L732-2 test_~tmp___0~1#1 := test_#t~nondet38#1;havoc test_#t~nondet38#1; 465#L742 assume !(0 != test_~tmp___0~1#1); 463#L742-2 test_~tmp___2~0#1 := test_#t~nondet39#1;havoc test_#t~nondet39#1; 462#L752 assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 421#L957 assume { :end_inline_startSystem } true; 416#L760-2 assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret32#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; 411#L878 __utac_acc__Specification5_spec__2_#t~ret32#1 := isPumpRunning_#res#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret32#1;havoc __utac_acc__Specification5_spec__2_#t~ret32#1; 400#L530 assume { :end_inline___utac_acc__Specification5_spec__2 } true; 397#L793 assume !(0 != ~pumpRunning~0); 398#L793-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret41#1, processEnvironment_~tmp~6#1;havoc processEnvironment_~tmp~6#1; 425#L825 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true; 428#L817-1 assume { :end_inline_processEnvironment__wrappee__base } true; 370#L825-1 assume { :end_inline_processEnvironment } true; 371#L800-1 assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret33#1, __utac_acc__Specification5_spec__3_#t~ret34#1, __utac_acc__Specification5_spec__3_~tmp~3#1, __utac_acc__Specification5_spec__3_~tmp___0~0#1;havoc __utac_acc__Specification5_spec__3_~tmp~3#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~0#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~4#1;havoc getWaterLevel_~retValue_acc~4#1;getWaterLevel_~retValue_acc~4#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~4#1; 438#L498 __utac_acc__Specification5_spec__3_#t~ret33#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~3#1 := __utac_acc__Specification5_spec__3_#t~ret33#1;havoc __utac_acc__Specification5_spec__3_#t~ret33#1; 435#L541 assume !(2 != __utac_acc__Specification5_spec__3_~tmp~3#1); 380#L541-1 assume { :end_inline___utac_acc__Specification5_spec__3 } true; 346#L810 assume { :end_inline_timeShift } true; 347#L722-2 [2021-12-14 23:39:50,122 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 23:39:50,123 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 2 times [2021-12-14 23:39:50,123 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 23:39:50,123 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1195791805] [2021-12-14 23:39:50,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 23:39:50,125 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 23:39:50,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-14 23:39:50,152 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-14 23:39:50,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-14 23:39:50,165 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-14 23:39:50,165 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 23:39:50,165 INFO L85 PathProgramCache]: Analyzing trace with hash -752998373, now seen corresponding path program 1 times [2021-12-14 23:39:50,166 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 23:39:50,166 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [952979318] [2021-12-14 23:39:50,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 23:39:50,166 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 23:39:50,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-14 23:39:50,176 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-14 23:39:50,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-14 23:39:50,183 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-14 23:39:50,186 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 23:39:50,186 INFO L85 PathProgramCache]: Analyzing trace with hash -310786492, now seen corresponding path program 1 times [2021-12-14 23:39:50,186 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 23:39:50,187 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1459139278] [2021-12-14 23:39:50,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 23:39:50,187 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 23:39:50,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 23:39:50,272 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 23:39:50,272 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 23:39:50,272 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1459139278] [2021-12-14 23:39:50,272 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1459139278] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 23:39:50,272 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 23:39:50,273 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-14 23:39:50,273 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1093210181] [2021-12-14 23:39:50,273 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 23:39:50,451 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 23:39:50,452 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-14 23:39:50,452 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-14 23:39:50,452 INFO L87 Difference]: Start difference. First operand 195 states and 255 transitions. cyclomatic complexity: 63 Second operand has 5 states, 5 states have (on average 6.0) internal successors, (30), 4 states have internal predecessors, (30), 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 23:39:50,586 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 23:39:50,586 INFO L93 Difference]: Finished difference Result 551 states and 711 transitions. [2021-12-14 23:39:50,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-14 23:39:50,587 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 551 states and 711 transitions. [2021-12-14 23:39:50,593 INFO L131 ngComponentsAnalysis]: Automaton has 6 accepting balls. 262 [2021-12-14 23:39:50,596 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 551 states to 551 states and 711 transitions. [2021-12-14 23:39:50,596 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 551 [2021-12-14 23:39:50,597 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 551 [2021-12-14 23:39:50,598 INFO L73 IsDeterministic]: Start isDeterministic. Operand 551 states and 711 transitions. [2021-12-14 23:39:50,602 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-14 23:39:50,603 INFO L681 BuchiCegarLoop]: Abstraction has 551 states and 711 transitions. [2021-12-14 23:39:50,603 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 551 states and 711 transitions. [2021-12-14 23:39:50,624 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 551 to 374. [2021-12-14 23:39:50,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 374 states, 374 states have (on average 1.2834224598930482) internal successors, (480), 373 states have internal predecessors, (480), 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 23:39:50,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 374 states to 374 states and 480 transitions. [2021-12-14 23:39:50,627 INFO L704 BuchiCegarLoop]: Abstraction has 374 states and 480 transitions. [2021-12-14 23:39:50,627 INFO L587 BuchiCegarLoop]: Abstraction has 374 states and 480 transitions. [2021-12-14 23:39:50,628 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-12-14 23:39:50,628 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 374 states and 480 transitions. [2021-12-14 23:39:50,629 INFO L131 ngComponentsAnalysis]: Automaton has 6 accepting balls. 262 [2021-12-14 23:39:50,629 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-14 23:39:50,629 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-14 23:39:50,629 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 23:39:50,630 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] [2021-12-14 23:39:50,630 INFO L791 eck$LassoCheckResult]: Stem: 1224#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);call #Ultimate.allocInit(13, 16);call #Ultimate.allocInit(7, 17);call write~init~int(44, 17, 0, 1);call write~init~int(77, 17, 1, 1);call write~init~int(101, 17, 2, 1);call write~init~int(116, 17, 3, 1);call write~init~int(104, 17, 4, 1);call write~init~int(58, 17, 5, 1);call write~init~int(0, 17, 6, 1);call #Ultimate.allocInit(5, 18);call write~init~int(67, 18, 0, 1);call write~init~int(82, 18, 1, 1);call write~init~int(73, 18, 2, 1);call write~init~int(84, 18, 3, 1);call write~init~int(0, 18, 4, 1);call #Ultimate.allocInit(3, 19);call write~init~int(79, 19, 0, 1);call write~init~int(75, 19, 1, 1);call write~init~int(0, 19, 2, 1);call #Ultimate.allocInit(2, 20);call write~init~int(41, 20, 0, 1);call write~init~int(0, 20, 1, 1);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);~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~switchedOnBeforeTS~0 := 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1; 1158#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret36#1, main_~retValue_acc~8#1, main_~tmp~4#1;havoc main_~retValue_acc~8#1;havoc main_~tmp~4#1;assume { :begin_inline_select_helpers } true; 1159#L588 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 1213#L581 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~7#1;havoc valid_product_~retValue_acc~7#1;valid_product_~retValue_acc~7#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~7#1; 1173#L596 main_#t~ret36#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~4#1 := main_#t~ret36#1;havoc main_#t~ret36#1; 1174#L696 assume 0 != main_~tmp~4#1;assume { :begin_inline_setup } true; 1175#L671 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0; 1160#L520 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; 1161#L722-2 [2021-12-14 23:39:50,630 INFO L793 eck$LassoCheckResult]: Loop: 1161#L722-2 assume !false; 1339#L723 assume test_~splverifierCounter~0#1 < 4; 1340#L724 test_~tmp~5#1 := test_#t~nondet37#1;havoc test_#t~nondet37#1; 1469#L732 assume !(0 != test_~tmp~5#1); 1468#L732-2 test_~tmp___0~1#1 := test_#t~nondet38#1;havoc test_#t~nondet38#1; 1466#L742 assume !(0 != test_~tmp___0~1#1); 1464#L742-2 test_~tmp___2~0#1 := test_#t~nondet39#1;havoc test_#t~nondet39#1; 1463#L752 assume !(0 != test_~tmp___2~0#1);test_~tmp___1~0#1 := test_#t~nondet40#1;havoc test_#t~nondet40#1; 1441#L760 assume !(0 != test_~tmp___1~0#1); 1442#L760-2 assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret32#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; 1462#L878 __utac_acc__Specification5_spec__2_#t~ret32#1 := isPumpRunning_#res#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret32#1;havoc __utac_acc__Specification5_spec__2_#t~ret32#1; 1461#L530 assume { :end_inline___utac_acc__Specification5_spec__2 } true; 1454#L793 assume !(0 != ~pumpRunning~0); 1197#L793-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret41#1, processEnvironment_~tmp~6#1;havoc processEnvironment_~tmp~6#1; 1198#L825 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true; 1445#L817-1 assume { :end_inline_processEnvironment__wrappee__base } true; 1130#L825-1 assume { :end_inline_processEnvironment } true; 1131#L800-1 assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret33#1, __utac_acc__Specification5_spec__3_#t~ret34#1, __utac_acc__Specification5_spec__3_~tmp~3#1, __utac_acc__Specification5_spec__3_~tmp___0~0#1;havoc __utac_acc__Specification5_spec__3_~tmp~3#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~0#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~4#1;havoc getWaterLevel_~retValue_acc~4#1;getWaterLevel_~retValue_acc~4#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~4#1; 1211#L498 __utac_acc__Specification5_spec__3_#t~ret33#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~3#1 := __utac_acc__Specification5_spec__3_#t~ret33#1;havoc __utac_acc__Specification5_spec__3_#t~ret33#1; 1212#L541 assume 2 != __utac_acc__Specification5_spec__3_~tmp~3#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; 1398#L878-1 __utac_acc__Specification5_spec__3_#t~ret34#1 := isPumpRunning_#res#1;assume { :end_inline_isPumpRunning } true;__utac_acc__Specification5_spec__3_~tmp___0~0#1 := __utac_acc__Specification5_spec__3_#t~ret34#1;havoc __utac_acc__Specification5_spec__3_#t~ret34#1; 1397#L545 assume !(0 != __utac_acc__Specification5_spec__3_~tmp___0~0#1); 1394#L541-1 assume { :end_inline___utac_acc__Specification5_spec__3 } true; 1345#L810 assume { :end_inline_timeShift } true; 1161#L722-2 [2021-12-14 23:39:50,630 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 23:39:50,630 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 3 times [2021-12-14 23:39:50,630 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 23:39:50,631 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1944532768] [2021-12-14 23:39:50,631 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 23:39:50,631 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 23:39:50,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-14 23:39:50,654 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-14 23:39:50,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-14 23:39:50,662 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-14 23:39:50,663 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 23:39:50,663 INFO L85 PathProgramCache]: Analyzing trace with hash -1577438072, now seen corresponding path program 1 times [2021-12-14 23:39:50,663 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 23:39:50,663 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1054170609] [2021-12-14 23:39:50,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 23:39:50,664 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 23:39:50,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-14 23:39:50,668 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-14 23:39:50,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-14 23:39:50,672 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-14 23:39:50,673 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 23:39:50,673 INFO L85 PathProgramCache]: Analyzing trace with hash -1813582735, now seen corresponding path program 1 times [2021-12-14 23:39:50,673 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 23:39:50,673 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1006977142] [2021-12-14 23:39:50,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 23:39:50,674 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 23:39:50,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-14 23:39:50,682 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-14 23:39:50,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-14 23:39:50,692 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-14 23:39:53,427 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 14.12 11:39:53 BoogieIcfgContainer [2021-12-14 23:39:53,427 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-12-14 23:39:53,428 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-14 23:39:53,428 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-14 23:39:53,428 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-14 23:39:53,429 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 23:39:53,431 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2021-12-14 23:39:53,473 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-12-14 23:39:53,476 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-14 23:39:53,479 INFO L158 Benchmark]: Toolchain (without parser) took 4942.46ms. Allocated memory was 94.4MB in the beginning and 136.3MB in the end (delta: 41.9MB). Free memory was 62.9MB in the beginning and 50.5MB in the end (delta: 12.4MB). Peak memory consumption was 53.5MB. Max. memory is 16.1GB. [2021-12-14 23:39:53,481 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 94.4MB. Free memory was 51.8MB in the beginning and 51.7MB in the end (delta: 70.0kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-14 23:39:53,481 INFO L158 Benchmark]: CACSL2BoogieTranslator took 384.61ms. Allocated memory is still 94.4MB. Free memory was 62.8MB in the beginning and 63.2MB in the end (delta: -476.6kB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-12-14 23:39:53,482 INFO L158 Benchmark]: Boogie Procedure Inliner took 75.36ms. Allocated memory is still 94.4MB. Free memory was 63.2MB in the beginning and 60.1MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-14 23:39:53,482 INFO L158 Benchmark]: Boogie Preprocessor took 22.97ms. Allocated memory is still 94.4MB. Free memory was 60.1MB in the beginning and 58.4MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-14 23:39:53,482 INFO L158 Benchmark]: RCFGBuilder took 465.89ms. Allocated memory was 94.4MB in the beginning and 113.2MB in the end (delta: 18.9MB). Free memory was 58.4MB in the beginning and 84.4MB in the end (delta: -26.0MB). Peak memory consumption was 15.2MB. Max. memory is 16.1GB. [2021-12-14 23:39:53,483 INFO L158 Benchmark]: BuchiAutomizer took 3939.45ms. Allocated memory was 113.2MB in the beginning and 136.3MB in the end (delta: 23.1MB). Free memory was 84.3MB in the beginning and 53.7MB in the end (delta: 30.7MB). Peak memory consumption was 68.4MB. Max. memory is 16.1GB. [2021-12-14 23:39:53,483 INFO L158 Benchmark]: Witness Printer took 48.56ms. Allocated memory is still 136.3MB. Free memory was 53.7MB in the beginning and 50.5MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-14 23:39:53,485 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 94.4MB. Free memory was 51.8MB in the beginning and 51.7MB in the end (delta: 70.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 384.61ms. Allocated memory is still 94.4MB. Free memory was 62.8MB in the beginning and 63.2MB in the end (delta: -476.6kB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 75.36ms. Allocated memory is still 94.4MB. Free memory was 63.2MB in the beginning and 60.1MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 22.97ms. Allocated memory is still 94.4MB. Free memory was 60.1MB in the beginning and 58.4MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 465.89ms. Allocated memory was 94.4MB in the beginning and 113.2MB in the end (delta: 18.9MB). Free memory was 58.4MB in the beginning and 84.4MB in the end (delta: -26.0MB). Peak memory consumption was 15.2MB. Max. memory is 16.1GB. * BuchiAutomizer took 3939.45ms. Allocated memory was 113.2MB in the beginning and 136.3MB in the end (delta: 23.1MB). Free memory was 84.3MB in the beginning and 53.7MB in the end (delta: 30.7MB). Peak memory consumption was 68.4MB. Max. memory is 16.1GB. * Witness Printer took 48.56ms. Allocated memory is still 136.3MB. Free memory was 53.7MB in the beginning and 50.5MB 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 5 locations. The remainder module has 374 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 3.8s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 3.4s. 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 0.1s AutomataMinimizationTime, 2 MinimizatonAttempts, 180 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 374 states and ocurred in iteration 2. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 593 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 593 mSDsluCounter, 888 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 554 mSDsCounter, 22 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 90 IncrementalHoareTripleChecker+Invalid, 112 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 22 mSolverCounterUnsat, 334 mSDtfsCounter, 90 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI1 SFLT0 conc1 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 722]: 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@29f29c17=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4f446b74=0, NULL=0, head=0, tmp___0=0, pumpRunning=0, NULL=1, methaneLevelCritical=0, tmp=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7109c34e=0, retValue_acc=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@46932d49=0, tmp=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3f4886c1=0, retValue_acc=0, \result=1, retValue_acc=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@41ff7f36=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2151f650=0, tmp___2=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5a6b9082=0, tmp=1, \result=0, cleanupTimeShifts=4, switchedOnBeforeTS=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@70ebaa59=0, \result=0, tmp___0=0, head=0, \result=1, tmp___1=0, NULL=0, retValue_acc=1, waterLevel=1, systemActive=1, tmp=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 722]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L219] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L423] int waterLevel = 1; [L424] int methaneLevelCritical = 0; [L514] int switchedOnBeforeTS ; [L610] int cleanupTimeShifts = 4; [L783] int pumpRunning = 0; [L784] int systemActive = 1; [L687] int retValue_acc ; [L688] int tmp ; [L692] FCALL select_helpers() [L693] FCALL select_features() [L694] CALL, EXPR valid_product() [L592] int retValue_acc ; [L595] retValue_acc = 1 [L596] return (retValue_acc); [L694] RET, EXPR valid_product() [L694] tmp = valid_product() [L696] COND TRUE \read(tmp) [L698] FCALL setup() [L699] CALL runTest() [L680] CALL __utac_acc__Specification5_spec__1() [L519] switchedOnBeforeTS = 0 [L680] RET __utac_acc__Specification5_spec__1() [L681] CALL test() [L713] int splverifierCounter ; [L714] int tmp ; [L715] int tmp___0 ; [L716] int tmp___1 ; [L717] int tmp___2 ; [L720] splverifierCounter = 0 Loop: [L722] COND TRUE 1 [L724] COND TRUE splverifierCounter < 4 [L730] tmp = __VERIFIER_nondet_int() [L732] COND FALSE !(\read(tmp)) [L740] tmp___0 = __VERIFIER_nondet_int() [L742] COND FALSE !(\read(tmp___0)) [L750] tmp___2 = __VERIFIER_nondet_int() [L752] COND FALSE !(\read(tmp___2)) [L758] tmp___1 = __VERIFIER_nondet_int() [L760] COND FALSE !(\read(tmp___1)) [L769] CALL timeShift() [L791] CALL __utac_acc__Specification5_spec__2() [L528] CALL, EXPR isPumpRunning() [L874] int retValue_acc ; [L877] retValue_acc = pumpRunning [L878] return (retValue_acc); [L528] RET, EXPR isPumpRunning() [L528] switchedOnBeforeTS = isPumpRunning() [L791] RET __utac_acc__Specification5_spec__2() [L793] COND FALSE !(\read(pumpRunning)) [L800] COND TRUE \read(systemActive) [L802] CALL processEnvironment() [L822] int tmp ; [L825] COND FALSE !(\read(pumpRunning)) [L840] FCALL processEnvironment__wrappee__base() [L802] RET processEnvironment() [L808] CALL __utac_acc__Specification5_spec__3() [L534] int tmp ; [L535] int tmp___0 ; [L539] CALL, EXPR getWaterLevel() [L494] int retValue_acc ; [L497] retValue_acc = waterLevel [L498] return (retValue_acc); [L539] RET, EXPR getWaterLevel() [L539] tmp = getWaterLevel() [L541] COND TRUE tmp != 2 [L543] CALL, EXPR isPumpRunning() [L874] int retValue_acc ; [L877] retValue_acc = pumpRunning [L878] return (retValue_acc); [L543] RET, EXPR isPumpRunning() [L543] tmp___0 = isPumpRunning() [L545] COND FALSE !(\read(tmp___0)) [L808] RET __utac_acc__Specification5_spec__3() [L769] RET timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2021-12-14 23:39:53,517 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM)