./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/minepump_spec3_product28.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version c3fed411 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i ../sv-benchmarks/c/product-lines/minepump_spec3_product28.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 fad1f46ef1d66409ef51b118a06472b77e31d844250c32d0f4ef55111b850abc --- Real Ultimate output --- This is Ultimate 0.2.2-tmp.no-commuhash-c3fed41 [2021-12-16 10:00:32,416 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-16 10:00:32,446 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-16 10:00:32,509 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-16 10:00:32,509 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-16 10:00:32,512 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-16 10:00:32,512 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-16 10:00:32,514 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-16 10:00:32,516 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-16 10:00:32,519 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-16 10:00:32,520 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-16 10:00:32,521 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-16 10:00:32,521 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-16 10:00:32,522 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-16 10:00:32,524 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-16 10:00:32,528 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-16 10:00:32,529 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-16 10:00:32,529 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-16 10:00:32,534 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-16 10:00:32,538 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-16 10:00:32,539 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-16 10:00:32,556 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-16 10:00:32,557 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-16 10:00:32,558 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-16 10:00:32,562 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-16 10:00:32,562 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-16 10:00:32,563 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-16 10:00:32,564 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-16 10:00:32,564 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-16 10:00:32,564 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-16 10:00:32,565 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-16 10:00:32,565 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-16 10:00:32,566 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-16 10:00:32,567 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-16 10:00:32,568 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-16 10:00:32,568 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-16 10:00:32,569 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-16 10:00:32,569 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-16 10:00:32,569 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-16 10:00:32,570 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-16 10:00:32,571 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-16 10:00:32,571 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-12-16 10:00:32,612 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-16 10:00:32,612 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-16 10:00:32,613 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-16 10:00:32,613 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-16 10:00:32,614 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-16 10:00:32,614 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-16 10:00:32,614 INFO L138 SettingsManager]: * Use SBE=true [2021-12-16 10:00:32,615 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-12-16 10:00:32,615 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-12-16 10:00:32,615 INFO L138 SettingsManager]: * Use old map elimination=false [2021-12-16 10:00:32,615 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-12-16 10:00:32,616 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-12-16 10:00:32,616 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-12-16 10:00:32,616 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-16 10:00:32,616 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-16 10:00:32,616 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-12-16 10:00:32,616 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-16 10:00:32,617 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-16 10:00:32,617 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-16 10:00:32,617 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-12-16 10:00:32,617 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-12-16 10:00:32,617 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-12-16 10:00:32,617 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-16 10:00:32,618 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-16 10:00:32,618 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-12-16 10:00:32,618 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-16 10:00:32,618 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-12-16 10:00:32,618 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-16 10:00:32,618 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-16 10:00:32,619 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-16 10:00:32,619 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-16 10:00:32,619 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-16 10:00:32,620 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-12-16 10:00:32,620 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fad1f46ef1d66409ef51b118a06472b77e31d844250c32d0f4ef55111b850abc [2021-12-16 10:00:32,983 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-16 10:00:33,006 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-16 10:00:33,013 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-16 10:00:33,014 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-16 10:00:33,014 INFO L275 PluginConnector]: CDTParser initialized [2021-12-16 10:00:33,015 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec3_product28.cil.c [2021-12-16 10:00:33,102 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e002d5688/d6d29f2d93974387b538a1a197969c51/FLAG719adfc51 [2021-12-16 10:00:33,789 INFO L306 CDTParser]: Found 1 translation units. [2021-12-16 10:00:33,789 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec3_product28.cil.c [2021-12-16 10:00:33,810 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e002d5688/d6d29f2d93974387b538a1a197969c51/FLAG719adfc51 [2021-12-16 10:00:34,095 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e002d5688/d6d29f2d93974387b538a1a197969c51 [2021-12-16 10:00:34,097 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-16 10:00:34,099 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-16 10:00:34,114 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-16 10:00:34,115 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-16 10:00:34,118 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-16 10:00:34,120 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 10:00:34" (1/1) ... [2021-12-16 10:00:34,121 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@65751cd4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 10:00:34, skipping insertion in model container [2021-12-16 10:00:34,122 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 10:00:34" (1/1) ... [2021-12-16 10:00:34,128 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-16 10:00:34,180 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-16 10:00:34,393 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_spec3_product28.cil.c[8048,8061] [2021-12-16 10:00:34,430 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-16 10:00:34,436 INFO L203 MainTranslator]: Completed pre-run [2021-12-16 10:00:34,456 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_spec3_product28.cil.c[8048,8061] [2021-12-16 10:00:34,471 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-16 10:00:34,482 INFO L208 MainTranslator]: Completed translation [2021-12-16 10:00:34,482 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 10:00:34 WrapperNode [2021-12-16 10:00:34,482 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-16 10:00:34,483 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-16 10:00:34,483 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-16 10:00:34,483 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-16 10:00:34,488 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 10:00:34" (1/1) ... [2021-12-16 10:00:34,497 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 10:00:34" (1/1) ... [2021-12-16 10:00:34,516 INFO L137 Inliner]: procedures = 55, calls = 155, calls flagged for inlining = 52, calls inlined = 53, statements flattened = 420 [2021-12-16 10:00:34,516 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-16 10:00:34,517 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-16 10:00:34,517 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-16 10:00:34,517 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-16 10:00:34,522 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 10:00:34" (1/1) ... [2021-12-16 10:00:34,523 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 10:00:34" (1/1) ... [2021-12-16 10:00:34,524 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 10:00:34" (1/1) ... [2021-12-16 10:00:34,525 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 10:00:34" (1/1) ... [2021-12-16 10:00:34,528 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 10:00:34" (1/1) ... [2021-12-16 10:00:34,532 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 10:00:34" (1/1) ... [2021-12-16 10:00:34,533 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 10:00:34" (1/1) ... [2021-12-16 10:00:34,534 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-16 10:00:34,535 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-16 10:00:34,535 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-16 10:00:34,535 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-16 10:00:34,536 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 10:00:34" (1/1) ... [2021-12-16 10:00:34,540 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-16 10:00:34,555 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 10:00:34,564 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) [2021-12-16 10:00:34,571 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 [2021-12-16 10:00:34,589 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-16 10:00:34,590 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-16 10:00:34,590 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-16 10:00:34,590 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-16 10:00:34,643 INFO L236 CfgBuilder]: Building ICFG [2021-12-16 10:00:34,644 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-16 10:00:34,870 INFO L277 CfgBuilder]: Performing block encoding [2021-12-16 10:00:34,875 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-16 10:00:34,875 INFO L301 CfgBuilder]: Removed 2 assume(true) statements. [2021-12-16 10:00:34,877 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 10:00:34 BoogieIcfgContainer [2021-12-16 10:00:34,877 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-16 10:00:34,878 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-12-16 10:00:34,878 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-12-16 10:00:34,894 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-12-16 10:00:34,895 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-16 10:00:34,895 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 16.12 10:00:34" (1/3) ... [2021-12-16 10:00:34,896 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2e623318 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 16.12 10:00:34, skipping insertion in model container [2021-12-16 10:00:34,896 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-16 10:00:34,896 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 10:00:34" (2/3) ... [2021-12-16 10:00:34,896 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2e623318 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 16.12 10:00:34, skipping insertion in model container [2021-12-16 10:00:34,896 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-16 10:00:34,896 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 10:00:34" (3/3) ... [2021-12-16 10:00:34,897 INFO L388 chiAutomizerObserver]: Analyzing ICFG minepump_spec3_product28.cil.c [2021-12-16 10:00:34,951 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-12-16 10:00:34,952 INFO L360 BuchiCegarLoop]: Hoare is false [2021-12-16 10:00:34,952 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-12-16 10:00:34,952 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-12-16 10:00:34,952 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-12-16 10:00:34,952 INFO L364 BuchiCegarLoop]: Difference is false [2021-12-16 10:00:34,952 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-12-16 10:00:34,953 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-12-16 10:00:34,973 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 113 states, 112 states have (on average 1.3660714285714286) internal successors, (153), 112 states have internal predecessors, (153), 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) [2021-12-16 10:00:34,995 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 73 [2021-12-16 10:00:34,995 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-16 10:00:34,995 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-16 10:00:35,001 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-12-16 10:00:35,001 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 10:00:35,001 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-12-16 10:00:35,002 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 113 states, 112 states have (on average 1.3660714285714286) internal successors, (153), 112 states have internal predecessors, (153), 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) [2021-12-16 10:00:35,016 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 73 [2021-12-16 10:00:35,017 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-16 10:00:35,017 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-16 10:00:35,018 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-12-16 10:00:35,018 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 10:00:35,033 INFO L791 eck$LassoCheckResult]: Stem: 98#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(13, 4);call #Ultimate.allocInit(3, 5);call write~init~int(79, 5, 0, 1);call write~init~int(110, 5, 1, 1);call write~init~int(0, 5, 2, 1);call #Ultimate.allocInit(4, 6);call write~init~int(79, 6, 0, 1);call write~init~int(102, 6, 1, 1);call write~init~int(102, 6, 2, 1);call write~init~int(0, 6, 3, 1);call #Ultimate.allocInit(7, 7);call write~init~int(44, 7, 0, 1);call write~init~int(80, 7, 1, 1);call write~init~int(117, 7, 2, 1);call write~init~int(109, 7, 3, 1);call write~init~int(112, 7, 4, 1);call write~init~int(58, 7, 5, 1);call write~init~int(0, 7, 6, 1);call #Ultimate.allocInit(3, 8);call write~init~int(79, 8, 0, 1);call write~init~int(110, 8, 1, 1);call write~init~int(0, 8, 2, 1);call #Ultimate.allocInit(4, 9);call write~init~int(79, 9, 0, 1);call write~init~int(102, 9, 1, 1);call write~init~int(102, 9, 2, 1);call write~init~int(0, 9, 3, 1);call #Ultimate.allocInit(3, 10);call write~init~int(41, 10, 0, 1);call write~init~int(32, 10, 1, 1);call write~init~int(0, 10, 2, 1);call #Ultimate.allocInit(2, 11);call write~init~int(10, 11, 0, 1);call write~init~int(0, 11, 1, 1);call #Ultimate.allocInit(13, 12);call #Ultimate.allocInit(7, 13);call write~init~int(44, 13, 0, 1);call write~init~int(77, 13, 1, 1);call write~init~int(101, 13, 2, 1);call write~init~int(116, 13, 3, 1);call write~init~int(104, 13, 4, 1);call write~init~int(58, 13, 5, 1);call write~init~int(0, 13, 6, 1);call #Ultimate.allocInit(5, 14);call write~init~int(67, 14, 0, 1);call write~init~int(82, 14, 1, 1);call write~init~int(73, 14, 2, 1);call write~init~int(84, 14, 3, 1);call write~init~int(0, 14, 4, 1);call #Ultimate.allocInit(3, 15);call write~init~int(79, 15, 0, 1);call write~init~int(75, 15, 1, 1);call write~init~int(0, 15, 2, 1);call #Ultimate.allocInit(2, 16);call write~init~int(41, 16, 0, 1);call write~init~int(0, 16, 1, 1);call #Ultimate.allocInit(30, 17);call #Ultimate.allocInit(9, 18);call #Ultimate.allocInit(21, 19);call #Ultimate.allocInit(30, 20);call #Ultimate.allocInit(9, 21);call #Ultimate.allocInit(21, 22);call #Ultimate.allocInit(30, 23);call #Ultimate.allocInit(9, 24);call #Ultimate.allocInit(25, 25);call #Ultimate.allocInit(30, 26);call #Ultimate.allocInit(9, 27);call #Ultimate.allocInit(25, 28);~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0; 41#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret26#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; 50#L75true assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 103#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; 23#L83true main_#t~ret26#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~4#1 := main_#t~ret26#1;havoc main_#t~ret26#1; 74#L537true assume 0 != main_~tmp~4#1;assume { :begin_inline_setup } true; 71#L514true assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet17#1, test_#t~nondet18#1, test_#t~nondet19#1, test_#t~nondet20#1, test_~splverifierCounter~0#1, test_~tmp~3#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~3#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 42#L306-2true [2021-12-16 10:00:35,034 INFO L793 eck$LassoCheckResult]: Loop: 42#L306-2true assume !false; 68#L307true assume test_~splverifierCounter~0#1 < 4; 8#L308true test_~tmp~3#1 := test_#t~nondet17#1;havoc test_#t~nondet17#1; 94#L316true assume !(0 != test_~tmp~3#1); 65#L316-2true test_~tmp___0~1#1 := test_#t~nondet18#1;havoc test_#t~nondet18#1; 26#L326true assume !(0 != test_~tmp___0~1#1); 14#L326-2true test_~tmp___2~0#1 := test_#t~nondet19#1;havoc test_#t~nondet19#1; 69#L336true assume !(0 != test_~tmp___2~0#1);test_~tmp___1~0#1 := test_#t~nondet20#1;havoc test_#t~nondet20#1; 29#L344true assume !(0 != test_~tmp___1~0#1); 67#L344-2true assume { :begin_inline_timeShift } true; 105#L107true assume !(0 != ~pumpRunning~0); 57#L107-2true assume !(0 != ~systemActive~0); 79#L114-1true assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret27#1, __utac_acc__Specification3_spec__1_#t~ret28#1, __utac_acc__Specification3_spec__1_#t~ret29#1, __utac_acc__Specification3_spec__1_~tmp~5#1, __utac_acc__Specification3_spec__1_~tmp___0~2#1, __utac_acc__Specification3_spec__1_~tmp___1~1#1;havoc __utac_acc__Specification3_spec__1_~tmp~5#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~2#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~1#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~5#1;havoc isMethaneLevelCritical_~retValue_acc~5#1;isMethaneLevelCritical_~retValue_acc~5#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~5#1; 102#L409true __utac_acc__Specification3_spec__1_#t~ret27#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~5#1 := __utac_acc__Specification3_spec__1_#t~ret27#1;havoc __utac_acc__Specification3_spec__1_#t~ret27#1; 36#L569true assume 0 != __utac_acc__Specification3_spec__1_~tmp~5#1; 37#L575-1true assume { :end_inline___utac_acc__Specification3_spec__1 } true; 73#L124true assume { :end_inline_timeShift } true; 42#L306-2true [2021-12-16 10:00:35,040 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 10:00:35,040 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 1 times [2021-12-16 10:00:35,046 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 10:00:35,047 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1221191929] [2021-12-16 10:00:35,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 10:00:35,048 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 10:00:35,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-16 10:00:35,157 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-16 10:00:35,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-16 10:00:35,223 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-16 10:00:35,225 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 10:00:35,225 INFO L85 PathProgramCache]: Analyzing trace with hash 1380821057, now seen corresponding path program 1 times [2021-12-16 10:00:35,225 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 10:00:35,225 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1783364421] [2021-12-16 10:00:35,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 10:00:35,225 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 10:00:35,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-16 10:00:35,230 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-16 10:00:35,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-16 10:00:35,250 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-16 10:00:35,254 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 10:00:35,254 INFO L85 PathProgramCache]: Analyzing trace with hash 449139453, now seen corresponding path program 1 times [2021-12-16 10:00:35,255 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 10:00:35,255 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1660024713] [2021-12-16 10:00:35,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 10:00:35,255 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 10:00:35,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 10:00:35,412 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 10:00:35,412 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 10:00:35,413 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1660024713] [2021-12-16 10:00:35,414 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1660024713] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 10:00:35,414 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 10:00:35,414 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-16 10:00:35,415 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [743982247] [2021-12-16 10:00:35,415 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 10:00:35,550 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 10:00:35,569 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-16 10:00:35,569 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-12-16 10:00:35,571 INFO L87 Difference]: Start difference. First operand has 113 states, 112 states have (on average 1.3660714285714286) internal successors, (153), 112 states have internal predecessors, (153), 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) [2021-12-16 10:00:35,645 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 10:00:35,645 INFO L93 Difference]: Finished difference Result 384 states and 494 transitions. [2021-12-16 10:00:35,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-16 10:00:35,650 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 384 states and 494 transitions. [2021-12-16 10:00:35,654 INFO L131 ngComponentsAnalysis]: Automaton has 6 accepting balls. 248 [2021-12-16 10:00:35,658 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 384 states to 344 states and 454 transitions. [2021-12-16 10:00:35,659 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 344 [2021-12-16 10:00:35,659 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 344 [2021-12-16 10:00:35,660 INFO L73 IsDeterministic]: Start isDeterministic. Operand 344 states and 454 transitions. [2021-12-16 10:00:35,661 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-16 10:00:35,661 INFO L681 BuchiCegarLoop]: Abstraction has 344 states and 454 transitions. [2021-12-16 10:00:35,672 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 344 states and 454 transitions. [2021-12-16 10:00:35,683 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 344 to 158. [2021-12-16 10:00:35,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 158 states, 158 states have (on average 1.3227848101265822) internal successors, (209), 157 states have internal predecessors, (209), 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) [2021-12-16 10:00:35,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 158 states and 209 transitions. [2021-12-16 10:00:35,685 INFO L704 BuchiCegarLoop]: Abstraction has 158 states and 209 transitions. [2021-12-16 10:00:35,685 INFO L587 BuchiCegarLoop]: Abstraction has 158 states and 209 transitions. [2021-12-16 10:00:35,686 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-12-16 10:00:35,686 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 158 states and 209 transitions. [2021-12-16 10:00:35,686 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 113 [2021-12-16 10:00:35,687 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-16 10:00:35,687 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-16 10:00:35,687 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-12-16 10:00:35,687 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] [2021-12-16 10:00:35,688 INFO L791 eck$LassoCheckResult]: Stem: 615#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(13, 4);call #Ultimate.allocInit(3, 5);call write~init~int(79, 5, 0, 1);call write~init~int(110, 5, 1, 1);call write~init~int(0, 5, 2, 1);call #Ultimate.allocInit(4, 6);call write~init~int(79, 6, 0, 1);call write~init~int(102, 6, 1, 1);call write~init~int(102, 6, 2, 1);call write~init~int(0, 6, 3, 1);call #Ultimate.allocInit(7, 7);call write~init~int(44, 7, 0, 1);call write~init~int(80, 7, 1, 1);call write~init~int(117, 7, 2, 1);call write~init~int(109, 7, 3, 1);call write~init~int(112, 7, 4, 1);call write~init~int(58, 7, 5, 1);call write~init~int(0, 7, 6, 1);call #Ultimate.allocInit(3, 8);call write~init~int(79, 8, 0, 1);call write~init~int(110, 8, 1, 1);call write~init~int(0, 8, 2, 1);call #Ultimate.allocInit(4, 9);call write~init~int(79, 9, 0, 1);call write~init~int(102, 9, 1, 1);call write~init~int(102, 9, 2, 1);call write~init~int(0, 9, 3, 1);call #Ultimate.allocInit(3, 10);call write~init~int(41, 10, 0, 1);call write~init~int(32, 10, 1, 1);call write~init~int(0, 10, 2, 1);call #Ultimate.allocInit(2, 11);call write~init~int(10, 11, 0, 1);call write~init~int(0, 11, 1, 1);call #Ultimate.allocInit(13, 12);call #Ultimate.allocInit(7, 13);call write~init~int(44, 13, 0, 1);call write~init~int(77, 13, 1, 1);call write~init~int(101, 13, 2, 1);call write~init~int(116, 13, 3, 1);call write~init~int(104, 13, 4, 1);call write~init~int(58, 13, 5, 1);call write~init~int(0, 13, 6, 1);call #Ultimate.allocInit(5, 14);call write~init~int(67, 14, 0, 1);call write~init~int(82, 14, 1, 1);call write~init~int(73, 14, 2, 1);call write~init~int(84, 14, 3, 1);call write~init~int(0, 14, 4, 1);call #Ultimate.allocInit(3, 15);call write~init~int(79, 15, 0, 1);call write~init~int(75, 15, 1, 1);call write~init~int(0, 15, 2, 1);call #Ultimate.allocInit(2, 16);call write~init~int(41, 16, 0, 1);call write~init~int(0, 16, 1, 1);call #Ultimate.allocInit(30, 17);call #Ultimate.allocInit(9, 18);call #Ultimate.allocInit(21, 19);call #Ultimate.allocInit(30, 20);call #Ultimate.allocInit(9, 21);call #Ultimate.allocInit(21, 22);call #Ultimate.allocInit(30, 23);call #Ultimate.allocInit(9, 24);call #Ultimate.allocInit(25, 25);call #Ultimate.allocInit(30, 26);call #Ultimate.allocInit(9, 27);call #Ultimate.allocInit(25, 28);~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0; 572#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret26#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; 573#L75 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 583#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; 547#L83 main_#t~ret26#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~4#1 := main_#t~ret26#1;havoc main_#t~ret26#1; 548#L537 assume 0 != main_~tmp~4#1;assume { :begin_inline_setup } true; 602#L514 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet17#1, test_#t~nondet18#1, test_#t~nondet19#1, test_#t~nondet20#1, test_~splverifierCounter~0#1, test_~tmp~3#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~3#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 574#L306-2 [2021-12-16 10:00:35,688 INFO L793 eck$LassoCheckResult]: Loop: 574#L306-2 assume !false; 575#L307 assume test_~splverifierCounter~0#1 < 4; 522#L308 test_~tmp~3#1 := test_#t~nondet17#1;havoc test_#t~nondet17#1; 523#L316 assume !(0 != test_~tmp~3#1); 532#L316-2 test_~tmp___0~1#1 := test_#t~nondet18#1;havoc test_#t~nondet18#1; 549#L326 assume !(0 != test_~tmp___0~1#1); 533#L326-2 test_~tmp___2~0#1 := test_#t~nondet19#1;havoc test_#t~nondet19#1; 534#L336 assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 566#L289 assume { :end_inline_startSystem } true; 556#L344-2 assume { :begin_inline_timeShift } true; 599#L107 assume !(0 != ~pumpRunning~0); 589#L107-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret5#1, processEnvironment_~tmp~0#1;havoc processEnvironment_~tmp~0#1; 552#L139 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true; 553#L131-1 assume { :end_inline_processEnvironment__wrappee__base } true; 517#L139-1 assume { :end_inline_processEnvironment } true; 518#L114-1 assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret27#1, __utac_acc__Specification3_spec__1_#t~ret28#1, __utac_acc__Specification3_spec__1_#t~ret29#1, __utac_acc__Specification3_spec__1_~tmp~5#1, __utac_acc__Specification3_spec__1_~tmp___0~2#1, __utac_acc__Specification3_spec__1_~tmp___1~1#1;havoc __utac_acc__Specification3_spec__1_~tmp~5#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~2#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~1#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~5#1;havoc isMethaneLevelCritical_~retValue_acc~5#1;isMethaneLevelCritical_~retValue_acc~5#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~5#1; 604#L409 __utac_acc__Specification3_spec__1_#t~ret27#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~5#1 := __utac_acc__Specification3_spec__1_#t~ret27#1;havoc __utac_acc__Specification3_spec__1_#t~ret27#1; 567#L569 assume 0 != __utac_acc__Specification3_spec__1_~tmp~5#1; 524#L575-1 assume { :end_inline___utac_acc__Specification3_spec__1 } true; 568#L124 assume { :end_inline_timeShift } true; 574#L306-2 [2021-12-16 10:00:35,688 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 10:00:35,688 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 2 times [2021-12-16 10:00:35,688 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 10:00:35,689 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1394552107] [2021-12-16 10:00:35,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 10:00:35,689 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 10:00:35,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-16 10:00:35,696 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-16 10:00:35,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-16 10:00:35,704 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-16 10:00:35,704 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 10:00:35,704 INFO L85 PathProgramCache]: Analyzing trace with hash -978262779, now seen corresponding path program 1 times [2021-12-16 10:00:35,704 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 10:00:35,705 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1363938709] [2021-12-16 10:00:35,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 10:00:35,705 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 10:00:35,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-16 10:00:35,708 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-16 10:00:35,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-16 10:00:35,711 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-16 10:00:35,711 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 10:00:35,711 INFO L85 PathProgramCache]: Analyzing trace with hash 1668706505, now seen corresponding path program 1 times [2021-12-16 10:00:35,712 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 10:00:35,712 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1376541374] [2021-12-16 10:00:35,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 10:00:35,712 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 10:00:35,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 10:00:35,743 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 10:00:35,744 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 10:00:35,744 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1376541374] [2021-12-16 10:00:35,744 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1376541374] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 10:00:35,744 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 10:00:35,744 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-16 10:00:35,745 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [749245434] [2021-12-16 10:00:35,745 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 10:00:35,831 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 10:00:35,831 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-16 10:00:35,832 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-16 10:00:35,832 INFO L87 Difference]: Start difference. First operand 158 states and 209 transitions. cyclomatic complexity: 54 Second operand has 5 states, 5 states have (on average 5.4) internal successors, (27), 4 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 10:00:35,894 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 10:00:35,894 INFO L93 Difference]: Finished difference Result 552 states and 733 transitions. [2021-12-16 10:00:35,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-16 10:00:35,895 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 552 states and 733 transitions. [2021-12-16 10:00:35,898 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 418 [2021-12-16 10:00:35,900 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 552 states to 552 states and 733 transitions. [2021-12-16 10:00:35,900 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 552 [2021-12-16 10:00:35,901 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 552 [2021-12-16 10:00:35,901 INFO L73 IsDeterministic]: Start isDeterministic. Operand 552 states and 733 transitions. [2021-12-16 10:00:35,903 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-16 10:00:35,903 INFO L681 BuchiCegarLoop]: Abstraction has 552 states and 733 transitions. [2021-12-16 10:00:35,903 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 552 states and 733 transitions. [2021-12-16 10:00:35,911 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 552 to 309. [2021-12-16 10:00:35,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 309 states, 309 states have (on average 1.3042071197411003) internal successors, (403), 308 states have internal predecessors, (403), 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) [2021-12-16 10:00:35,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 309 states to 309 states and 403 transitions. [2021-12-16 10:00:35,912 INFO L704 BuchiCegarLoop]: Abstraction has 309 states and 403 transitions. [2021-12-16 10:00:35,912 INFO L587 BuchiCegarLoop]: Abstraction has 309 states and 403 transitions. [2021-12-16 10:00:35,913 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-12-16 10:00:35,913 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 309 states and 403 transitions. [2021-12-16 10:00:35,914 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 226 [2021-12-16 10:00:35,914 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-16 10:00:35,914 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-16 10:00:35,915 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-12-16 10:00:35,915 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] [2021-12-16 10:00:35,915 INFO L791 eck$LassoCheckResult]: Stem: 1361#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(13, 4);call #Ultimate.allocInit(3, 5);call write~init~int(79, 5, 0, 1);call write~init~int(110, 5, 1, 1);call write~init~int(0, 5, 2, 1);call #Ultimate.allocInit(4, 6);call write~init~int(79, 6, 0, 1);call write~init~int(102, 6, 1, 1);call write~init~int(102, 6, 2, 1);call write~init~int(0, 6, 3, 1);call #Ultimate.allocInit(7, 7);call write~init~int(44, 7, 0, 1);call write~init~int(80, 7, 1, 1);call write~init~int(117, 7, 2, 1);call write~init~int(109, 7, 3, 1);call write~init~int(112, 7, 4, 1);call write~init~int(58, 7, 5, 1);call write~init~int(0, 7, 6, 1);call #Ultimate.allocInit(3, 8);call write~init~int(79, 8, 0, 1);call write~init~int(110, 8, 1, 1);call write~init~int(0, 8, 2, 1);call #Ultimate.allocInit(4, 9);call write~init~int(79, 9, 0, 1);call write~init~int(102, 9, 1, 1);call write~init~int(102, 9, 2, 1);call write~init~int(0, 9, 3, 1);call #Ultimate.allocInit(3, 10);call write~init~int(41, 10, 0, 1);call write~init~int(32, 10, 1, 1);call write~init~int(0, 10, 2, 1);call #Ultimate.allocInit(2, 11);call write~init~int(10, 11, 0, 1);call write~init~int(0, 11, 1, 1);call #Ultimate.allocInit(13, 12);call #Ultimate.allocInit(7, 13);call write~init~int(44, 13, 0, 1);call write~init~int(77, 13, 1, 1);call write~init~int(101, 13, 2, 1);call write~init~int(116, 13, 3, 1);call write~init~int(104, 13, 4, 1);call write~init~int(58, 13, 5, 1);call write~init~int(0, 13, 6, 1);call #Ultimate.allocInit(5, 14);call write~init~int(67, 14, 0, 1);call write~init~int(82, 14, 1, 1);call write~init~int(73, 14, 2, 1);call write~init~int(84, 14, 3, 1);call write~init~int(0, 14, 4, 1);call #Ultimate.allocInit(3, 15);call write~init~int(79, 15, 0, 1);call write~init~int(75, 15, 1, 1);call write~init~int(0, 15, 2, 1);call #Ultimate.allocInit(2, 16);call write~init~int(41, 16, 0, 1);call write~init~int(0, 16, 1, 1);call #Ultimate.allocInit(30, 17);call #Ultimate.allocInit(9, 18);call #Ultimate.allocInit(21, 19);call #Ultimate.allocInit(30, 20);call #Ultimate.allocInit(9, 21);call #Ultimate.allocInit(21, 22);call #Ultimate.allocInit(30, 23);call #Ultimate.allocInit(9, 24);call #Ultimate.allocInit(25, 25);call #Ultimate.allocInit(30, 26);call #Ultimate.allocInit(9, 27);call #Ultimate.allocInit(25, 28);~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0; 1307#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret26#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; 1308#L75 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 1321#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; 1279#L83 main_#t~ret26#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~4#1 := main_#t~ret26#1;havoc main_#t~ret26#1; 1280#L537 assume 0 != main_~tmp~4#1;assume { :begin_inline_setup } true; 1341#L514 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet17#1, test_#t~nondet18#1, test_#t~nondet19#1, test_#t~nondet20#1, test_~splverifierCounter~0#1, test_~tmp~3#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~3#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 1311#L306-2 [2021-12-16 10:00:35,915 INFO L793 eck$LassoCheckResult]: Loop: 1311#L306-2 assume !false; 1312#L307 assume test_~splverifierCounter~0#1 < 4; 1250#L308 test_~tmp~3#1 := test_#t~nondet17#1;havoc test_#t~nondet17#1; 1251#L316 assume !(0 != test_~tmp~3#1); 1262#L316-2 test_~tmp___0~1#1 := test_#t~nondet18#1;havoc test_#t~nondet18#1; 1281#L326 assume !(0 != test_~tmp___0~1#1); 1263#L326-2 test_~tmp___2~0#1 := test_#t~nondet19#1;havoc test_#t~nondet19#1; 1264#L336 assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 1299#L289 assume { :end_inline_startSystem } true; 1289#L344-2 assume { :begin_inline_timeShift } true; 1337#L107 assume !(0 != ~pumpRunning~0); 1325#L107-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret5#1, processEnvironment_~tmp~0#1;havoc processEnvironment_~tmp~0#1; 1326#L139 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true; 1435#L131-1 assume { :end_inline_processEnvironment__wrappee__base } true; 1245#L139-1 assume { :end_inline_processEnvironment } true; 1246#L114-1 assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret27#1, __utac_acc__Specification3_spec__1_#t~ret28#1, __utac_acc__Specification3_spec__1_#t~ret29#1, __utac_acc__Specification3_spec__1_~tmp~5#1, __utac_acc__Specification3_spec__1_~tmp___0~2#1, __utac_acc__Specification3_spec__1_~tmp___1~1#1;havoc __utac_acc__Specification3_spec__1_~tmp~5#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~2#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~1#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~5#1;havoc isMethaneLevelCritical_~retValue_acc~5#1;isMethaneLevelCritical_~retValue_acc~5#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~5#1; 1347#L409 __utac_acc__Specification3_spec__1_#t~ret27#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~5#1 := __utac_acc__Specification3_spec__1_#t~ret27#1;havoc __utac_acc__Specification3_spec__1_#t~ret27#1; 1300#L569 assume !(0 != __utac_acc__Specification3_spec__1_~tmp~5#1);assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~6#1;havoc getWaterLevel_~retValue_acc~6#1;getWaterLevel_~retValue_acc~6#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~6#1; 1301#L441 __utac_acc__Specification3_spec__1_#t~ret28#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification3_spec__1_~tmp___0~2#1 := __utac_acc__Specification3_spec__1_#t~ret28#1;havoc __utac_acc__Specification3_spec__1_#t~ret28#1; 1257#L575 assume !(2 == __utac_acc__Specification3_spec__1_~tmp___0~2#1); 1253#L575-1 assume { :end_inline___utac_acc__Specification3_spec__1 } true; 1342#L124 assume { :end_inline_timeShift } true; 1311#L306-2 [2021-12-16 10:00:35,916 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 10:00:35,916 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 3 times [2021-12-16 10:00:35,916 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 10:00:35,916 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [9604565] [2021-12-16 10:00:35,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 10:00:35,916 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 10:00:35,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-16 10:00:35,922 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-16 10:00:35,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-16 10:00:35,929 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-16 10:00:35,929 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 10:00:35,930 INFO L85 PathProgramCache]: Analyzing trace with hash 488558936, now seen corresponding path program 1 times [2021-12-16 10:00:35,930 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 10:00:35,930 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1225437006] [2021-12-16 10:00:35,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 10:00:35,930 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 10:00:35,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-16 10:00:35,934 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-16 10:00:35,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-16 10:00:35,937 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-16 10:00:35,938 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 10:00:35,938 INFO L85 PathProgramCache]: Analyzing trace with hash 1605401628, now seen corresponding path program 1 times [2021-12-16 10:00:35,938 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 10:00:35,938 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [23419024] [2021-12-16 10:00:35,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 10:00:35,938 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 10:00:35,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-16 10:00:35,945 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-16 10:00:35,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-16 10:00:35,953 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-16 10:00:38,931 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 16.12 10:00:38 BoogieIcfgContainer [2021-12-16 10:00:38,932 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-12-16 10:00:38,932 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-16 10:00:38,932 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-16 10:00:38,932 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-16 10:00:38,933 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 10:00:34" (3/4) ... [2021-12-16 10:00:38,934 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2021-12-16 10:00:38,961 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-12-16 10:00:38,965 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-16 10:00:38,966 INFO L158 Benchmark]: Toolchain (without parser) took 4866.76ms. Allocated memory was 79.7MB in the beginning and 142.6MB in the end (delta: 62.9MB). Free memory was 57.7MB in the beginning and 61.7MB in the end (delta: -4.0MB). Peak memory consumption was 58.5MB. Max. memory is 16.1GB. [2021-12-16 10:00:38,966 INFO L158 Benchmark]: CDTParser took 15.90ms. Allocated memory is still 79.7MB. Free memory was 58.6MB in the beginning and 58.6MB in the end (delta: 39.3kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-16 10:00:38,966 INFO L158 Benchmark]: CACSL2BoogieTranslator took 368.54ms. Allocated memory is still 79.7MB. Free memory was 57.5MB in the beginning and 47.6MB in the end (delta: 9.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-12-16 10:00:38,967 INFO L158 Benchmark]: Boogie Procedure Inliner took 33.05ms. Allocated memory is still 79.7MB. Free memory was 47.6MB in the beginning and 44.7MB in the end (delta: 2.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-12-16 10:00:38,967 INFO L158 Benchmark]: Boogie Preprocessor took 17.59ms. Allocated memory is still 79.7MB. Free memory was 44.7MB in the beginning and 42.9MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-16 10:00:38,967 INFO L158 Benchmark]: RCFGBuilder took 342.04ms. Allocated memory was 79.7MB in the beginning and 96.5MB in the end (delta: 16.8MB). Free memory was 42.7MB in the beginning and 62.5MB in the end (delta: -19.7MB). Peak memory consumption was 11.2MB. Max. memory is 16.1GB. [2021-12-16 10:00:38,968 INFO L158 Benchmark]: BuchiAutomizer took 4054.06ms. Allocated memory was 96.5MB in the beginning and 142.6MB in the end (delta: 46.1MB). Free memory was 62.5MB in the beginning and 63.7MB in the end (delta: -1.2MB). Peak memory consumption was 53.1MB. Max. memory is 16.1GB. [2021-12-16 10:00:38,968 INFO L158 Benchmark]: Witness Printer took 33.30ms. Allocated memory is still 142.6MB. Free memory was 63.7MB in the beginning and 61.7MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-16 10:00:38,970 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 15.90ms. Allocated memory is still 79.7MB. Free memory was 58.6MB in the beginning and 58.6MB in the end (delta: 39.3kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 368.54ms. Allocated memory is still 79.7MB. Free memory was 57.5MB in the beginning and 47.6MB in the end (delta: 9.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 33.05ms. Allocated memory is still 79.7MB. Free memory was 47.6MB in the beginning and 44.7MB in the end (delta: 2.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 17.59ms. Allocated memory is still 79.7MB. Free memory was 44.7MB in the beginning and 42.9MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 342.04ms. Allocated memory was 79.7MB in the beginning and 96.5MB in the end (delta: 16.8MB). Free memory was 42.7MB in the beginning and 62.5MB in the end (delta: -19.7MB). Peak memory consumption was 11.2MB. Max. memory is 16.1GB. * BuchiAutomizer took 4054.06ms. Allocated memory was 96.5MB in the beginning and 142.6MB in the end (delta: 46.1MB). Free memory was 62.5MB in the beginning and 63.7MB in the end (delta: -1.2MB). Peak memory consumption was 53.1MB. Max. memory is 16.1GB. * Witness Printer took 33.30ms. Allocated memory is still 142.6MB. Free memory was 63.7MB in the beginning and 61.7MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 2 terminating modules (2 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.2 modules have a trivial ranking function, the largest among these consists of 6 locations. The remainder module has 309 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 3.9s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 3.6s. Construction of modules took 0.0s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 0. Minimization of det autom 2. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 429 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 309 states and ocurred in iteration 2. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1121 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1121 mSDsluCounter, 1908 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1576 mSDsCounter, 27 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 97 IncrementalHoareTripleChecker+Invalid, 124 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 27 mSolverCounterUnsat, 332 mSDtfsCounter, 97 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI0 SFLT0 conc2 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 306]: 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@104c0d8=0, NULL=0, head=0, tmp___0=0, pumpRunning=0, retValue_acc=0, NULL=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2820bf03=0, retValue_acc=1, methaneLevelCritical=0, tmp___0=1, \result=0, retValue_acc=1, tmp=0, retValue_acc=0, \result=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7c206d4b=29, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1e984cd3=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3b7fa7f=0, tmp___2=29, tmp___1=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1595feb2=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@237224f=0, tmp=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@efc48cd=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4070b0e8=0, cleanupTimeShifts=4, tmp=0, \result=0, tmp=0, head=0, \result=1, tmp___1=0, NULL=0, waterLevel=1, systemActive=1} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 306]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L99] int pumpRunning = 0; [L100] int systemActive = 1; [L366] int waterLevel = 1; [L367] int methaneLevelCritical = 0; [L455] int cleanupTimeShifts = 4; [L763] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L528] int retValue_acc ; [L529] int tmp ; [L533] FCALL select_helpers() [L534] FCALL select_features() [L535] CALL, EXPR valid_product() [L79] int retValue_acc ; [L82] retValue_acc = 1 [L83] return (retValue_acc); [L535] RET, EXPR valid_product() [L535] tmp = valid_product() [L537] COND TRUE \read(tmp) [L539] FCALL setup() [L540] CALL runTest() [L522] CALL test() [L297] int splverifierCounter ; [L298] int tmp ; [L299] int tmp___0 ; [L300] int tmp___1 ; [L301] int tmp___2 ; [L304] splverifierCounter = 0 Loop: [L306] COND TRUE 1 [L308] COND TRUE splverifierCounter < 4 [L314] tmp = __VERIFIER_nondet_int() [L316] COND FALSE !(\read(tmp)) [L324] tmp___0 = __VERIFIER_nondet_int() [L326] COND FALSE !(\read(tmp___0)) [L334] tmp___2 = __VERIFIER_nondet_int() [L336] COND TRUE \read(tmp___2) [L338] CALL startSystem() [L288] systemActive = 1 [L338] RET startSystem() [L353] CALL timeShift() [L107] COND FALSE !(\read(pumpRunning)) [L114] COND TRUE \read(systemActive) [L116] CALL processEnvironment() [L136] int tmp ; [L139] COND FALSE !(\read(pumpRunning)) [L154] FCALL processEnvironment__wrappee__base() [L116] RET processEnvironment() [L122] CALL __utac_acc__Specification3_spec__1() [L561] int tmp ; [L562] int tmp___0 ; [L563] int tmp___1 ; [L567] CALL, EXPR isMethaneLevelCritical() [L405] int retValue_acc ; [L408] retValue_acc = methaneLevelCritical [L409] return (retValue_acc); [L567] RET, EXPR isMethaneLevelCritical() [L567] tmp = isMethaneLevelCritical() [L569] COND FALSE !(\read(tmp)) [L573] CALL, EXPR getWaterLevel() [L437] int retValue_acc ; [L440] retValue_acc = waterLevel [L441] return (retValue_acc); [L573] RET, EXPR getWaterLevel() [L573] tmp___0 = getWaterLevel() [L575] COND FALSE !(tmp___0 == 2) [L122] RET __utac_acc__Specification3_spec__1() [L353] RET timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2021-12-16 10:00:39,021 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM)