./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/minepump_spec4_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_spec4_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 5bb0c67d0f3b897df6aba0c402ea453b42e61f1d6e102d991db16c73430a771e --- Real Ultimate output --- This is Ultimate 0.2.2-839c364b5d67a0f615c82cb70ab247790648d4a9-839c364 [2021-12-14 23:39:06,315 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-14 23:39:06,316 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-14 23:39:06,361 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-14 23:39:06,361 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-14 23:39:06,363 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-14 23:39:06,364 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-14 23:39:06,365 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-14 23:39:06,366 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-14 23:39:06,367 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-14 23:39:06,367 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-14 23:39:06,371 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-14 23:39:06,373 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-14 23:39:06,375 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-14 23:39:06,376 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-14 23:39:06,378 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-14 23:39:06,380 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-14 23:39:06,384 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-14 23:39:06,385 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-14 23:39:06,386 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-14 23:39:06,387 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-14 23:39:06,391 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-14 23:39:06,392 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-14 23:39:06,392 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-14 23:39:06,394 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-14 23:39:06,397 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-14 23:39:06,398 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-14 23:39:06,398 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-14 23:39:06,399 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-14 23:39:06,399 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-14 23:39:06,400 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-14 23:39:06,400 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-14 23:39:06,401 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-14 23:39:06,402 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-14 23:39:06,403 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-14 23:39:06,404 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-14 23:39:06,404 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-14 23:39:06,405 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-14 23:39:06,405 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-14 23:39:06,405 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-14 23:39:06,406 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-14 23:39:06,407 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-12-14 23:39:06,424 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-14 23:39:06,425 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-14 23:39:06,425 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-14 23:39:06,425 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-14 23:39:06,426 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-14 23:39:06,426 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-14 23:39:06,426 INFO L138 SettingsManager]: * Use SBE=true [2021-12-14 23:39:06,426 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-12-14 23:39:06,426 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-12-14 23:39:06,426 INFO L138 SettingsManager]: * Use old map elimination=false [2021-12-14 23:39:06,426 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-12-14 23:39:06,426 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-12-14 23:39:06,427 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-12-14 23:39:06,427 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-14 23:39:06,427 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-14 23:39:06,427 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-12-14 23:39:06,427 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-14 23:39:06,427 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-14 23:39:06,427 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-14 23:39:06,427 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-12-14 23:39:06,428 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-12-14 23:39:06,428 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-12-14 23:39:06,428 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-14 23:39:06,428 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-14 23:39:06,428 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-12-14 23:39:06,428 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-14 23:39:06,429 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-12-14 23:39:06,429 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-14 23:39:06,429 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-14 23:39:06,429 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-14 23:39:06,429 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-14 23:39:06,429 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-14 23:39:06,430 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-12-14 23:39:06,430 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5bb0c67d0f3b897df6aba0c402ea453b42e61f1d6e102d991db16c73430a771e [2021-12-14 23:39:06,608 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-14 23:39:06,626 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-14 23:39:06,628 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-14 23:39:06,629 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-14 23:39:06,629 INFO L275 PluginConnector]: CDTParser initialized [2021-12-14 23:39:06,630 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec4_product20.cil.c [2021-12-14 23:39:06,686 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0933ae8ea/c31d185b7ef3484fa4158140055d1ee6/FLAG7e2ded0d3 [2021-12-14 23:39:07,111 INFO L306 CDTParser]: Found 1 translation units. [2021-12-14 23:39:07,111 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec4_product20.cil.c [2021-12-14 23:39:07,123 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0933ae8ea/c31d185b7ef3484fa4158140055d1ee6/FLAG7e2ded0d3 [2021-12-14 23:39:07,131 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0933ae8ea/c31d185b7ef3484fa4158140055d1ee6 [2021-12-14 23:39:07,133 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-14 23:39:07,134 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-14 23:39:07,137 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-14 23:39:07,138 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-14 23:39:07,145 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-14 23:39:07,145 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 11:39:07" (1/1) ... [2021-12-14 23:39:07,146 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@47407284 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:39:07, skipping insertion in model container [2021-12-14 23:39:07,146 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 11:39:07" (1/1) ... [2021-12-14 23:39:07,151 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-14 23:39:07,192 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-14 23:39:07,418 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec4_product20.cil.c[14361,14374] [2021-12-14 23:39:07,432 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-14 23:39:07,452 INFO L203 MainTranslator]: Completed pre-run [2021-12-14 23:39:07,522 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec4_product20.cil.c[14361,14374] [2021-12-14 23:39:07,529 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-14 23:39:07,544 INFO L208 MainTranslator]: Completed translation [2021-12-14 23:39:07,546 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:39:07 WrapperNode [2021-12-14 23:39:07,547 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-14 23:39:07,547 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-14 23:39:07,548 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-14 23:39:07,548 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-14 23:39:07,552 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:39:07" (1/1) ... [2021-12-14 23:39:07,575 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:39:07" (1/1) ... [2021-12-14 23:39:07,596 INFO L137 Inliner]: procedures = 54, calls = 152, calls flagged for inlining = 49, calls inlined = 50, statements flattened = 387 [2021-12-14 23:39:07,597 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-14 23:39:07,597 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-14 23:39:07,598 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-14 23:39:07,598 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-14 23:39:07,603 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:39:07" (1/1) ... [2021-12-14 23:39:07,604 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:39:07" (1/1) ... [2021-12-14 23:39:07,605 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:39:07" (1/1) ... [2021-12-14 23:39:07,605 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:39:07" (1/1) ... [2021-12-14 23:39:07,609 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:39:07" (1/1) ... [2021-12-14 23:39:07,618 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:39:07" (1/1) ... [2021-12-14 23:39:07,624 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:39:07" (1/1) ... [2021-12-14 23:39:07,626 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-14 23:39:07,636 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-14 23:39:07,636 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-14 23:39:07,636 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-14 23:39:07,637 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:39:07" (1/1) ... [2021-12-14 23:39:07,644 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-14 23:39:07,651 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 23:39:07,664 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 23:39:07,704 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-14 23:39:07,704 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-14 23:39:07,704 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-14 23:39:07,704 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-14 23:39:07,695 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 23:39:07,768 INFO L236 CfgBuilder]: Building ICFG [2021-12-14 23:39:07,769 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-14 23:39:08,005 INFO L277 CfgBuilder]: Performing block encoding [2021-12-14 23:39:08,009 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-14 23:39:08,015 INFO L301 CfgBuilder]: Removed 2 assume(true) statements. [2021-12-14 23:39:08,017 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 11:39:08 BoogieIcfgContainer [2021-12-14 23:39:08,017 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-14 23:39:08,018 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-12-14 23:39:08,018 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-12-14 23:39:08,029 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-12-14 23:39:08,042 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-14 23:39:08,042 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 14.12 11:39:07" (1/3) ... [2021-12-14 23:39:08,043 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@41829aab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 14.12 11:39:08, skipping insertion in model container [2021-12-14 23:39:08,043 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-14 23:39:08,043 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:39:07" (2/3) ... [2021-12-14 23:39:08,044 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@41829aab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 14.12 11:39:08, skipping insertion in model container [2021-12-14 23:39:08,044 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-14 23:39:08,044 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 11:39:08" (3/3) ... [2021-12-14 23:39:08,045 INFO L388 chiAutomizerObserver]: Analyzing ICFG minepump_spec4_product20.cil.c [2021-12-14 23:39:08,090 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-12-14 23:39:08,090 INFO L360 BuchiCegarLoop]: Hoare is false [2021-12-14 23:39:08,090 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-12-14 23:39:08,090 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-12-14 23:39:08,090 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-12-14 23:39:08,090 INFO L364 BuchiCegarLoop]: Difference is false [2021-12-14 23:39:08,090 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-12-14 23:39:08,090 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-12-14 23:39:08,103 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 107 states, 106 states have (on average 1.3584905660377358) internal successors, (144), 106 states have internal predecessors, (144), 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 23:39:08,119 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 69 [2021-12-14 23:39:08,120 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-14 23:39:08,120 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-14 23:39:08,124 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-12-14 23:39:08,124 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 23:39:08,125 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-12-14 23:39:08,125 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 107 states, 106 states have (on average 1.3584905660377358) internal successors, (144), 106 states have internal predecessors, (144), 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 23:39:08,131 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 69 [2021-12-14 23:39:08,131 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-14 23:39:08,131 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-14 23:39:08,132 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-12-14 23:39:08,132 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 23:39:08,141 INFO L791 eck$LassoCheckResult]: Stem: 94#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);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1; 28#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret10#1, main_~retValue_acc~5#1, main_~tmp~0#1;havoc main_~retValue_acc~5#1;havoc main_~tmp~0#1;assume { :begin_inline_select_helpers } true; 48#L75true assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 101#L68true assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~1#1;havoc valid_product_~retValue_acc~1#1;valid_product_~retValue_acc~1#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~1#1; 18#L83true main_#t~ret10#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~0#1 := main_#t~ret10#1;havoc main_#t~ret10#1; 51#L269true assume 0 != main_~tmp~0#1;assume { :begin_inline_setup } true; 23#L245true assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet47#1, test_#t~nondet48#1, test_#t~nondet49#1, test_#t~nondet50#1, test_~splverifierCounter~0#1, test_~tmp~7#1, test_~tmp___0~2#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~7#1;havoc test_~tmp___0~2#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 100#L874-2true [2021-12-14 23:39:08,142 INFO L793 eck$LassoCheckResult]: Loop: 100#L874-2true assume !false; 7#L875true assume test_~splverifierCounter~0#1 < 4; 76#L876true test_~tmp~7#1 := test_#t~nondet47#1;havoc test_#t~nondet47#1; 20#L884true assume !(0 != test_~tmp~7#1); 33#L884-2true test_~tmp___0~2#1 := test_#t~nondet48#1;havoc test_#t~nondet48#1; 26#L894true assume !(0 != test_~tmp___0~2#1); 65#L894-2true test_~tmp___2~0#1 := test_#t~nondet49#1;havoc test_#t~nondet49#1; 17#L904true assume !(0 != test_~tmp___2~0#1);test_~tmp___1~0#1 := test_#t~nondet50#1;havoc test_#t~nondet50#1; 93#L912true assume !(0 != test_~tmp___1~0#1); 57#L912-2true assume { :begin_inline_timeShift } true; 34#L696true assume !(0 != ~pumpRunning~0); 15#L696-2true assume !(0 != ~systemActive~0); 37#L703-1true assume { :begin_inline___utac_acc__Specification4_spec__1 } true;havoc __utac_acc__Specification4_spec__1_#t~ret34#1, __utac_acc__Specification4_spec__1_#t~ret35#1, __utac_acc__Specification4_spec__1_~tmp~4#1, __utac_acc__Specification4_spec__1_~tmp___0~0#1;havoc __utac_acc__Specification4_spec__1_~tmp~4#1;havoc __utac_acc__Specification4_spec__1_~tmp___0~0#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~3#1;havoc getWaterLevel_~retValue_acc~3#1;getWaterLevel_~retValue_acc~3#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~3#1; 55#L170true __utac_acc__Specification4_spec__1_#t~ret34#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification4_spec__1_~tmp~4#1 := __utac_acc__Specification4_spec__1_#t~ret34#1;havoc __utac_acc__Specification4_spec__1_#t~ret34#1; 27#L667true assume !(0 == __utac_acc__Specification4_spec__1_~tmp~4#1); 82#L667-1true assume { :end_inline___utac_acc__Specification4_spec__1 } true; 80#L713true assume { :end_inline_timeShift } true; 100#L874-2true [2021-12-14 23:39:08,146 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 23:39:08,146 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 1 times [2021-12-14 23:39:08,152 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 23:39:08,153 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1492466658] [2021-12-14 23:39:08,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 23:39:08,154 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 23:39:08,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-14 23:39:08,286 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-14 23:39:08,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-14 23:39:08,335 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-14 23:39:08,337 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 23:39:08,337 INFO L85 PathProgramCache]: Analyzing trace with hash 1380834287, now seen corresponding path program 1 times [2021-12-14 23:39:08,338 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 23:39:08,339 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1526058082] [2021-12-14 23:39:08,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 23:39:08,340 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 23:39:08,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-14 23:39:08,366 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-14 23:39:08,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-14 23:39:08,377 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-14 23:39:08,380 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 23:39:08,380 INFO L85 PathProgramCache]: Analyzing trace with hash 449152683, now seen corresponding path program 1 times [2021-12-14 23:39:08,380 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 23:39:08,380 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1532956503] [2021-12-14 23:39:08,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 23:39:08,381 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 23:39:08,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 23:39:08,518 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 23:39:08,519 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 23:39:08,519 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1532956503] [2021-12-14 23:39:08,520 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1532956503] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 23:39:08,520 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 23:39:08,520 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-14 23:39:08,521 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1131328160] [2021-12-14 23:39:08,521 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 23:39:08,641 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 23:39:08,663 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-14 23:39:08,664 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-12-14 23:39:08,666 INFO L87 Difference]: Start difference. First operand has 107 states, 106 states have (on average 1.3584905660377358) internal successors, (144), 106 states have internal predecessors, (144), 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 4.0) internal successors, (24), 5 states have internal predecessors, (24), 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 23:39:08,789 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 23:39:08,789 INFO L93 Difference]: Finished difference Result 360 states and 458 transitions. [2021-12-14 23:39:08,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-14 23:39:08,794 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 360 states and 458 transitions. [2021-12-14 23:39:08,799 INFO L131 ngComponentsAnalysis]: Automaton has 6 accepting balls. 232 [2021-12-14 23:39:08,804 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 360 states to 320 states and 418 transitions. [2021-12-14 23:39:08,805 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 320 [2021-12-14 23:39:08,806 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 320 [2021-12-14 23:39:08,806 INFO L73 IsDeterministic]: Start isDeterministic. Operand 320 states and 418 transitions. [2021-12-14 23:39:08,807 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-14 23:39:08,808 INFO L681 BuchiCegarLoop]: Abstraction has 320 states and 418 transitions. [2021-12-14 23:39:08,819 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 320 states and 418 transitions. [2021-12-14 23:39:08,832 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 320 to 146. [2021-12-14 23:39:08,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 146 states, 146 states have (on average 1.3082191780821917) internal successors, (191), 145 states have internal predecessors, (191), 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 23:39:08,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 191 transitions. [2021-12-14 23:39:08,834 INFO L704 BuchiCegarLoop]: Abstraction has 146 states and 191 transitions. [2021-12-14 23:39:08,834 INFO L587 BuchiCegarLoop]: Abstraction has 146 states and 191 transitions. [2021-12-14 23:39:08,834 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-12-14 23:39:08,835 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 146 states and 191 transitions. [2021-12-14 23:39:08,836 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 105 [2021-12-14 23:39:08,836 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-14 23:39:08,836 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-14 23:39:08,836 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-12-14 23:39:08,837 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] [2021-12-14 23:39:08,837 INFO L791 eck$LassoCheckResult]: Stem: 574#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);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1; 563#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret10#1, main_~retValue_acc~5#1, main_~tmp~0#1;havoc main_~retValue_acc~5#1;havoc main_~tmp~0#1;assume { :begin_inline_select_helpers } true; 564#L75 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 577#L68 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~1#1;havoc valid_product_~retValue_acc~1#1;valid_product_~retValue_acc~1#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~1#1; 537#L83 main_#t~ret10#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~0#1 := main_#t~ret10#1;havoc main_#t~ret10#1; 538#L269 assume 0 != main_~tmp~0#1;assume { :begin_inline_setup } true; 548#L245 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet47#1, test_#t~nondet48#1, test_#t~nondet49#1, test_#t~nondet50#1, test_~splverifierCounter~0#1, test_~tmp~7#1, test_~tmp___0~2#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~7#1;havoc test_~tmp___0~2#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 549#L874-2 [2021-12-14 23:39:08,837 INFO L793 eck$LassoCheckResult]: Loop: 549#L874-2 assume !false; 506#L875 assume test_~splverifierCounter~0#1 < 4; 507#L876 test_~tmp~7#1 := test_#t~nondet47#1;havoc test_#t~nondet47#1; 540#L884 assume !(0 != test_~tmp~7#1); 542#L884-2 test_~tmp___0~2#1 := test_#t~nondet48#1;havoc test_#t~nondet48#1; 555#L894 assume !(0 != test_~tmp___0~2#1); 501#L894-2 test_~tmp___2~0#1 := test_#t~nondet49#1;havoc test_#t~nondet49#1; 515#L904 assume !(0 != test_~tmp___2~0#1);test_~tmp___1~0#1 := test_#t~nondet50#1;havoc test_#t~nondet50#1; 535#L912 assume !(0 != test_~tmp___1~0#1); 485#L912-2 assume { :begin_inline_timeShift } true; 486#L696 assume !(0 != ~pumpRunning~0); 524#L696-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret36#1, processEnvironment_~tmp~5#1;havoc processEnvironment_~tmp~5#1; 532#L728 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true; 566#L720-1 assume { :end_inline_processEnvironment__wrappee__base } true; 552#L728-1 assume { :end_inline_processEnvironment } true; 569#L703-1 assume { :begin_inline___utac_acc__Specification4_spec__1 } true;havoc __utac_acc__Specification4_spec__1_#t~ret34#1, __utac_acc__Specification4_spec__1_#t~ret35#1, __utac_acc__Specification4_spec__1_~tmp~4#1, __utac_acc__Specification4_spec__1_~tmp___0~0#1;havoc __utac_acc__Specification4_spec__1_~tmp~4#1;havoc __utac_acc__Specification4_spec__1_~tmp___0~0#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~3#1;havoc getWaterLevel_~retValue_acc~3#1;getWaterLevel_~retValue_acc~3#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~3#1; 570#L170 __utac_acc__Specification4_spec__1_#t~ret34#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification4_spec__1_~tmp~4#1 := __utac_acc__Specification4_spec__1_#t~ret34#1;havoc __utac_acc__Specification4_spec__1_#t~ret34#1; 562#L667 assume !(0 == __utac_acc__Specification4_spec__1_~tmp~4#1); 559#L667-1 assume { :end_inline___utac_acc__Specification4_spec__1 } true; 557#L713 assume { :end_inline_timeShift } true; 549#L874-2 [2021-12-14 23:39:08,838 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 23:39:08,838 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 2 times [2021-12-14 23:39:08,838 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 23:39:08,838 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1222568802] [2021-12-14 23:39:08,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 23:39:08,839 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 23:39:08,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-14 23:39:08,846 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-14 23:39:08,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-14 23:39:08,854 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-14 23:39:08,855 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 23:39:08,855 INFO L85 PathProgramCache]: Analyzing trace with hash 171627365, now seen corresponding path program 1 times [2021-12-14 23:39:08,855 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 23:39:08,855 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [215880586] [2021-12-14 23:39:08,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 23:39:08,856 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 23:39:08,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-14 23:39:08,859 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-14 23:39:08,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-14 23:39:08,863 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-14 23:39:08,863 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 23:39:08,863 INFO L85 PathProgramCache]: Analyzing trace with hash -1476370647, now seen corresponding path program 1 times [2021-12-14 23:39:08,863 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 23:39:08,864 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1132226176] [2021-12-14 23:39:08,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 23:39:08,864 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 23:39:08,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-14 23:39:08,890 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-14 23:39:08,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-14 23:39:08,899 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-14 23:39:11,508 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 14.12 11:39:11 BoogieIcfgContainer [2021-12-14 23:39:11,508 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-12-14 23:39:11,508 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-14 23:39:11,509 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-14 23:39:11,509 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-14 23:39:11,509 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 11:39:08" (3/4) ... [2021-12-14 23:39:11,511 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2021-12-14 23:39:11,548 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-12-14 23:39:11,549 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-14 23:39:11,551 INFO L158 Benchmark]: Toolchain (without parser) took 4416.46ms. Allocated memory was 109.1MB in the beginning and 188.7MB in the end (delta: 79.7MB). Free memory was 81.1MB in the beginning and 103.5MB in the end (delta: -22.4MB). Peak memory consumption was 56.3MB. Max. memory is 16.1GB. [2021-12-14 23:39:11,551 INFO L158 Benchmark]: CDTParser took 0.21ms. Allocated memory is still 109.1MB. Free memory is still 66.9MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-14 23:39:11,552 INFO L158 Benchmark]: CACSL2BoogieTranslator took 409.31ms. Allocated memory is still 109.1MB. Free memory was 80.9MB in the beginning and 76.3MB in the end (delta: 4.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-12-14 23:39:11,552 INFO L158 Benchmark]: Boogie Procedure Inliner took 49.53ms. Allocated memory is still 109.1MB. Free memory was 76.1MB in the beginning and 73.5MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-14 23:39:11,552 INFO L158 Benchmark]: Boogie Preprocessor took 36.89ms. Allocated memory is still 109.1MB. Free memory was 73.3MB in the beginning and 71.7MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-14 23:39:11,553 INFO L158 Benchmark]: RCFGBuilder took 381.53ms. Allocated memory is still 109.1MB. Free memory was 71.5MB in the beginning and 54.6MB in the end (delta: 16.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2021-12-14 23:39:11,553 INFO L158 Benchmark]: BuchiAutomizer took 3489.80ms. Allocated memory was 109.1MB in the beginning and 188.7MB in the end (delta: 79.7MB). Free memory was 54.6MB in the beginning and 106.6MB in the end (delta: -52.0MB). Peak memory consumption was 64.3MB. Max. memory is 16.1GB. [2021-12-14 23:39:11,553 INFO L158 Benchmark]: Witness Printer took 41.84ms. Allocated memory is still 188.7MB. Free memory was 106.6MB in the beginning and 103.5MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-14 23:39:11,555 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21ms. Allocated memory is still 109.1MB. Free memory is still 66.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 409.31ms. Allocated memory is still 109.1MB. Free memory was 80.9MB in the beginning and 76.3MB in the end (delta: 4.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 49.53ms. Allocated memory is still 109.1MB. Free memory was 76.1MB in the beginning and 73.5MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 36.89ms. Allocated memory is still 109.1MB. Free memory was 73.3MB in the beginning and 71.7MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 381.53ms. Allocated memory is still 109.1MB. Free memory was 71.5MB in the beginning and 54.6MB in the end (delta: 16.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * BuchiAutomizer took 3489.80ms. Allocated memory was 109.1MB in the beginning and 188.7MB in the end (delta: 79.7MB). Free memory was 54.6MB in the beginning and 106.6MB in the end (delta: -52.0MB). Peak memory consumption was 64.3MB. Max. memory is 16.1GB. * Witness Printer took 41.84ms. Allocated memory is still 188.7MB. Free memory was 106.6MB in the beginning and 103.5MB 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 1 terminating modules (1 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.1 modules have a trivial ranking function, the largest among these consists of 6 locations. The remainder module has 146 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 3.4s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 3.1s. Construction of modules took 0.0s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 0. Minimization of det autom 1. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 174 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 146 states and ocurred in iteration 1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 712 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 712 mSDsluCounter, 936 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 808 mSDsCounter, 15 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 48 IncrementalHoareTripleChecker+Invalid, 63 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 15 mSolverCounterUnsat, 128 mSDtfsCounter, 48 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI0 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: 874]: 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@9bb8fb1=0, NULL=0, head=0, pumpRunning=0, tmp___0=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@733a23d9=0, NULL=1, tmp___0=0, methaneLevelCritical=0, retValue_acc=1, tmp=1, \result=1, retValue_acc=0, tmp___2=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@57eadea6=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@48ce6f12=0, cleanupTimeShifts=4, tmp=1, \result=0, tmp=0, head=0, retValue_acc=1, \result=1, tmp___1=0, NULL=0, waterLevel=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@17365f55=0, systemActive=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3de8f943=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@76559362=0, tmp=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@302bbf5a=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 874]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L95] int waterLevel = 1; [L96] int methaneLevelCritical = 0; [L184] int cleanupTimeShifts = 4; [L452] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L689] int pumpRunning = 0; [L690] int systemActive = 1; [L260] int retValue_acc ; [L261] int tmp ; [L265] FCALL select_helpers() [L266] FCALL select_features() [L267] CALL, EXPR valid_product() [L79] int retValue_acc ; [L82] retValue_acc = 1 [L83] return (retValue_acc); [L267] RET, EXPR valid_product() [L267] tmp = valid_product() [L269] COND TRUE \read(tmp) [L271] FCALL setup() [L272] CALL runTest() [L254] CALL test() [L865] int splverifierCounter ; [L866] int tmp ; [L867] int tmp___0 ; [L868] int tmp___1 ; [L869] int tmp___2 ; [L872] splverifierCounter = 0 Loop: [L874] COND TRUE 1 [L876] COND TRUE splverifierCounter < 4 [L882] tmp = __VERIFIER_nondet_int() [L884] COND FALSE !(\read(tmp)) [L892] tmp___0 = __VERIFIER_nondet_int() [L894] COND FALSE !(\read(tmp___0)) [L902] tmp___2 = __VERIFIER_nondet_int() [L904] COND FALSE !(\read(tmp___2)) [L910] tmp___1 = __VERIFIER_nondet_int() [L912] COND FALSE !(\read(tmp___1)) [L921] CALL timeShift() [L696] COND FALSE !(\read(pumpRunning)) [L703] COND TRUE \read(systemActive) [L705] CALL processEnvironment() [L725] int tmp ; [L728] COND FALSE !(\read(pumpRunning)) [L743] FCALL processEnvironment__wrappee__base() [L705] RET processEnvironment() [L711] CALL __utac_acc__Specification4_spec__1() [L660] int tmp ; [L661] int tmp___0 ; [L665] CALL, EXPR getWaterLevel() [L166] int retValue_acc ; [L169] retValue_acc = waterLevel [L170] return (retValue_acc); [L665] RET, EXPR getWaterLevel() [L665] tmp = getWaterLevel() [L667] COND FALSE !(tmp == 0) [L711] RET __utac_acc__Specification4_spec__1() [L921] RET timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2021-12-14 23:39:11,591 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)