./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/minepump_spec3_product14.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version ae007674 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_product14.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 9f40985114caeb048340f647c2568d018899bc3d78f19b72dfc5765d669ba2a6 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-ae00767 [2021-12-28 09:40:29,113 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-28 09:40:29,116 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-28 09:40:29,149 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-28 09:40:29,149 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-28 09:40:29,152 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-28 09:40:29,154 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-28 09:40:29,158 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-28 09:40:29,161 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-28 09:40:29,165 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-28 09:40:29,166 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-28 09:40:29,170 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-28 09:40:29,170 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-28 09:40:29,172 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-28 09:40:29,174 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-28 09:40:29,176 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-28 09:40:29,177 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-28 09:40:29,178 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-28 09:40:29,180 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-28 09:40:29,185 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-28 09:40:29,187 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-28 09:40:29,188 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-28 09:40:29,189 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-28 09:40:29,190 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-28 09:40:29,196 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-28 09:40:29,197 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-28 09:40:29,197 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-28 09:40:29,198 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-28 09:40:29,199 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-28 09:40:29,200 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-28 09:40:29,200 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-28 09:40:29,201 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-28 09:40:29,202 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-28 09:40:29,202 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-28 09:40:29,203 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-28 09:40:29,203 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-28 09:40:29,204 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-28 09:40:29,204 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-28 09:40:29,204 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-28 09:40:29,206 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-28 09:40:29,206 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-28 09:40:29,210 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-12-28 09:40:29,250 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-28 09:40:29,251 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-28 09:40:29,252 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-28 09:40:29,252 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-28 09:40:29,254 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-28 09:40:29,254 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-28 09:40:29,254 INFO L138 SettingsManager]: * Use SBE=true [2021-12-28 09:40:29,254 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-12-28 09:40:29,255 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-12-28 09:40:29,255 INFO L138 SettingsManager]: * Use old map elimination=false [2021-12-28 09:40:29,256 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-12-28 09:40:29,256 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-12-28 09:40:29,256 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-12-28 09:40:29,256 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-28 09:40:29,256 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-28 09:40:29,257 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-12-28 09:40:29,257 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-28 09:40:29,257 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-28 09:40:29,257 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-28 09:40:29,257 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-12-28 09:40:29,258 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-12-28 09:40:29,258 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-12-28 09:40:29,258 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-28 09:40:29,258 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-28 09:40:29,267 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-12-28 09:40:29,267 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-28 09:40:29,268 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-12-28 09:40:29,268 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-28 09:40:29,268 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-28 09:40:29,268 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-28 09:40:29,268 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-28 09:40:29,270 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-12-28 09:40:29,270 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9f40985114caeb048340f647c2568d018899bc3d78f19b72dfc5765d669ba2a6 [2021-12-28 09:40:29,590 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-28 09:40:29,614 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-28 09:40:29,616 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-28 09:40:29,617 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-28 09:40:29,618 INFO L275 PluginConnector]: CDTParser initialized [2021-12-28 09:40:29,619 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec3_product14.cil.c [2021-12-28 09:40:29,681 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b52a59804/41e6656977d9496996c1b1801271188f/FLAGcb1a57f9c [2021-12-28 09:40:30,099 INFO L306 CDTParser]: Found 1 translation units. [2021-12-28 09:40:30,102 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec3_product14.cil.c [2021-12-28 09:40:30,116 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b52a59804/41e6656977d9496996c1b1801271188f/FLAGcb1a57f9c [2021-12-28 09:40:30,474 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b52a59804/41e6656977d9496996c1b1801271188f [2021-12-28 09:40:30,477 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-28 09:40:30,479 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-28 09:40:30,483 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-28 09:40:30,483 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-28 09:40:30,486 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-28 09:40:30,487 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.12 09:40:30" (1/1) ... [2021-12-28 09:40:30,488 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@151fb092 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 09:40:30, skipping insertion in model container [2021-12-28 09:40:30,489 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.12 09:40:30" (1/1) ... [2021-12-28 09:40:30,494 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-28 09:40:30,526 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-28 09:40:30,658 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_product14.cil.c[1605,1618] [2021-12-28 09:40:30,801 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-28 09:40:30,809 INFO L203 MainTranslator]: Completed pre-run [2021-12-28 09:40:30,821 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_product14.cil.c[1605,1618] [2021-12-28 09:40:30,874 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-28 09:40:30,892 INFO L208 MainTranslator]: Completed translation [2021-12-28 09:40:30,893 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 09:40:30 WrapperNode [2021-12-28 09:40:30,893 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-28 09:40:30,894 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-28 09:40:30,895 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-28 09:40:30,895 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-28 09:40:30,901 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 09:40:30" (1/1) ... [2021-12-28 09:40:30,928 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 09:40:30" (1/1) ... [2021-12-28 09:40:30,965 INFO L137 Inliner]: procedures = 52, calls = 152, calls flagged for inlining = 49, calls inlined = 51, statements flattened = 395 [2021-12-28 09:40:30,965 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-28 09:40:30,966 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-28 09:40:30,966 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-28 09:40:30,966 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-28 09:40:30,980 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 09:40:30" (1/1) ... [2021-12-28 09:40:30,981 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 09:40:30" (1/1) ... [2021-12-28 09:40:30,983 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 09:40:30" (1/1) ... [2021-12-28 09:40:30,987 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 09:40:30" (1/1) ... [2021-12-28 09:40:30,993 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 09:40:30" (1/1) ... [2021-12-28 09:40:31,005 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 09:40:30" (1/1) ... [2021-12-28 09:40:31,014 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 09:40:30" (1/1) ... [2021-12-28 09:40:31,019 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-28 09:40:31,021 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-28 09:40:31,021 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-28 09:40:31,022 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-28 09:40:31,022 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 09:40:30" (1/1) ... [2021-12-28 09:40:31,033 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-28 09:40:31,044 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 09:40:31,054 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) [2021-12-28 09:40:31,059 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-12-28 09:40:31,082 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-28 09:40:31,088 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-28 09:40:31,088 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-28 09:40:31,088 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-28 09:40:31,146 INFO L234 CfgBuilder]: Building ICFG [2021-12-28 09:40:31,148 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-28 09:40:31,512 INFO L275 CfgBuilder]: Performing block encoding [2021-12-28 09:40:31,519 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-28 09:40:31,519 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2021-12-28 09:40:31,521 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.12 09:40:31 BoogieIcfgContainer [2021-12-28 09:40:31,521 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-28 09:40:31,522 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-12-28 09:40:31,522 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-12-28 09:40:31,524 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-12-28 09:40:31,525 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-28 09:40:31,525 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.12 09:40:30" (1/3) ... [2021-12-28 09:40:31,526 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2501db6b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.12 09:40:31, skipping insertion in model container [2021-12-28 09:40:31,526 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-28 09:40:31,526 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 09:40:30" (2/3) ... [2021-12-28 09:40:31,526 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2501db6b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.12 09:40:31, skipping insertion in model container [2021-12-28 09:40:31,526 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-28 09:40:31,527 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.12 09:40:31" (3/3) ... [2021-12-28 09:40:31,528 INFO L388 chiAutomizerObserver]: Analyzing ICFG minepump_spec3_product14.cil.c [2021-12-28 09:40:31,569 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-12-28 09:40:31,569 INFO L360 BuchiCegarLoop]: Hoare is false [2021-12-28 09:40:31,569 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-12-28 09:40:31,569 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-12-28 09:40:31,570 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-12-28 09:40:31,570 INFO L364 BuchiCegarLoop]: Difference is false [2021-12-28 09:40:31,570 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-12-28 09:40:31,570 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-12-28 09:40:31,597 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 103 states, 102 states have (on average 1.3627450980392157) internal successors, (139), 102 states have internal predecessors, (139), 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) [2021-12-28 09:40:31,623 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 65 [2021-12-28 09:40:31,624 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-28 09:40:31,624 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-28 09:40:31,631 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-12-28 09:40:31,631 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 09:40:31,631 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-12-28 09:40:31,633 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 103 states, 102 states have (on average 1.3627450980392157) internal successors, (139), 102 states have internal predecessors, (139), 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) [2021-12-28 09:40:31,648 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 65 [2021-12-28 09:40:31,648 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-28 09:40:31,648 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-28 09:40:31,649 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-12-28 09:40:31,649 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 09:40:31,659 INFO L791 eck$LassoCheckResult]: Stem: 92#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(13, 4);call #Ultimate.allocInit(3, 5);call write~init~int(79, 5, 0, 1);call write~init~int(110, 5, 1, 1);call write~init~int(0, 5, 2, 1);call #Ultimate.allocInit(4, 6);call write~init~int(79, 6, 0, 1);call write~init~int(102, 6, 1, 1);call write~init~int(102, 6, 2, 1);call write~init~int(0, 6, 3, 1);call #Ultimate.allocInit(7, 7);call write~init~int(44, 7, 0, 1);call write~init~int(80, 7, 1, 1);call write~init~int(117, 7, 2, 1);call write~init~int(109, 7, 3, 1);call write~init~int(112, 7, 4, 1);call write~init~int(58, 7, 5, 1);call write~init~int(0, 7, 6, 1);call #Ultimate.allocInit(3, 8);call write~init~int(79, 8, 0, 1);call write~init~int(110, 8, 1, 1);call write~init~int(0, 8, 2, 1);call #Ultimate.allocInit(4, 9);call write~init~int(79, 9, 0, 1);call write~init~int(102, 9, 1, 1);call write~init~int(102, 9, 2, 1);call write~init~int(0, 9, 3, 1);call #Ultimate.allocInit(3, 10);call write~init~int(41, 10, 0, 1);call write~init~int(32, 10, 1, 1);call write~init~int(0, 10, 2, 1);call #Ultimate.allocInit(2, 11);call write~init~int(10, 11, 0, 1);call write~init~int(0, 11, 1, 1);call #Ultimate.allocInit(30, 12);call #Ultimate.allocInit(9, 13);call #Ultimate.allocInit(21, 14);call #Ultimate.allocInit(30, 15);call #Ultimate.allocInit(9, 16);call #Ultimate.allocInit(21, 17);call #Ultimate.allocInit(30, 18);call #Ultimate.allocInit(9, 19);call #Ultimate.allocInit(25, 20);call #Ultimate.allocInit(30, 21);call #Ultimate.allocInit(9, 22);call #Ultimate.allocInit(25, 23);call #Ultimate.allocInit(13, 24);call #Ultimate.allocInit(7, 25);call write~init~int(44, 25, 0, 1);call write~init~int(77, 25, 1, 1);call write~init~int(101, 25, 2, 1);call write~init~int(116, 25, 3, 1);call write~init~int(104, 25, 4, 1);call write~init~int(58, 25, 5, 1);call write~init~int(0, 25, 6, 1);call #Ultimate.allocInit(5, 26);call write~init~int(67, 26, 0, 1);call write~init~int(82, 26, 1, 1);call write~init~int(73, 26, 2, 1);call write~init~int(84, 26, 3, 1);call write~init~int(0, 26, 4, 1);call #Ultimate.allocInit(3, 27);call write~init~int(79, 27, 0, 1);call write~init~int(75, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(41, 28, 0, 1);call write~init~int(0, 28, 1, 1);~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 29#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret46#1, main_~retValue_acc~7#1, main_~tmp~7#1;havoc main_~retValue_acc~7#1;havoc main_~tmp~7#1;assume { :begin_inline_select_helpers } true; 91#L84true assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 54#L77true 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; 86#L92true main_#t~ret46#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~7#1 := main_#t~ret46#1;havoc main_#t~ret46#1; 44#L817true assume 0 != main_~tmp~7#1;assume { :begin_inline_setup } true; 74#L794true assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet42#1, test_#t~nondet43#1, test_#t~nondet44#1, test_#t~nondet45#1, test_~splverifierCounter~0#1, test_~tmp~6#1, test_~tmp___0~1#1, test_~tmp___1~1#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~6#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~1#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 20#L678-2true [2021-12-28 09:40:31,659 INFO L793 eck$LassoCheckResult]: Loop: 20#L678-2true assume !false; 77#L679true assume test_~splverifierCounter~0#1 < 4; 97#L680true test_~tmp~6#1 := test_#t~nondet42#1;havoc test_#t~nondet42#1; 76#L688true assume !(0 != test_~tmp~6#1); 17#L688-2true test_~tmp___0~1#1 := test_#t~nondet43#1;havoc test_#t~nondet43#1; 71#L698true assume !(0 != test_~tmp___0~1#1); 90#L698-2true test_~tmp___2~0#1 := test_#t~nondet44#1;havoc test_#t~nondet44#1; 10#L708true assume !(0 != test_~tmp___2~0#1);test_~tmp___1~1#1 := test_#t~nondet45#1;havoc test_#t~nondet45#1; 33#L716true assume 0 != test_~tmp___1~1#1; 78#L716-2true assume { :begin_inline_timeShift } true; 24#L148true assume !(0 != ~pumpRunning~0); 28#L148-2true assume !(0 != ~systemActive~0); 40#L155-1true assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret5#1, __utac_acc__Specification3_spec__1_#t~ret6#1, __utac_acc__Specification3_spec__1_#t~ret7#1, __utac_acc__Specification3_spec__1_~tmp~0#1, __utac_acc__Specification3_spec__1_~tmp___0~0#1, __utac_acc__Specification3_spec__1_~tmp___1~0#1;havoc __utac_acc__Specification3_spec__1_~tmp~0#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~0#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~0#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~8#1;havoc isMethaneLevelCritical_~retValue_acc~8#1;isMethaneLevelCritical_~retValue_acc~8#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~8#1; 96#L874-1true __utac_acc__Specification3_spec__1_#t~ret5#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~0#1 := __utac_acc__Specification3_spec__1_#t~ret5#1;havoc __utac_acc__Specification3_spec__1_#t~ret5#1; 85#L109true assume 0 != __utac_acc__Specification3_spec__1_~tmp~0#1; 47#L115-1true assume { :end_inline___utac_acc__Specification3_spec__1 } true; 12#L165true assume { :end_inline_timeShift } true; 20#L678-2true [2021-12-28 09:40:31,665 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 09:40:31,666 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 1 times [2021-12-28 09:40:31,673 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 09:40:31,673 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [204223425] [2021-12-28 09:40:31,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 09:40:31,675 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 09:40:31,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-28 09:40:31,788 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-28 09:40:31,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-28 09:40:31,858 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-28 09:40:31,860 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 09:40:31,861 INFO L85 PathProgramCache]: Analyzing trace with hash -293260012, now seen corresponding path program 1 times [2021-12-28 09:40:31,861 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 09:40:31,863 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1860891082] [2021-12-28 09:40:31,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 09:40:31,863 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 09:40:31,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-28 09:40:31,877 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-28 09:40:31,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-28 09:40:31,894 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-28 09:40:31,895 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 09:40:31,895 INFO L85 PathProgramCache]: Analyzing trace with hash -1224941616, now seen corresponding path program 1 times [2021-12-28 09:40:31,895 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 09:40:31,896 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1461679893] [2021-12-28 09:40:31,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 09:40:31,896 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 09:40:31,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 09:40:32,023 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-28 09:40:32,024 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 09:40:32,024 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1461679893] [2021-12-28 09:40:32,024 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1461679893] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 09:40:32,025 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 09:40:32,025 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-28 09:40:32,025 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1084824608] [2021-12-28 09:40:32,026 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 09:40:32,145 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 09:40:32,172 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-28 09:40:32,173 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-12-28 09:40:32,176 INFO L87 Difference]: Start difference. First operand has 103 states, 102 states have (on average 1.3627450980392157) internal successors, (139), 102 states have internal predecessors, (139), 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) [2021-12-28 09:40:32,227 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 09:40:32,228 INFO L93 Difference]: Finished difference Result 100 states and 125 transitions. [2021-12-28 09:40:32,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-28 09:40:32,233 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 100 states and 125 transitions. [2021-12-28 09:40:32,240 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 61 [2021-12-28 09:40:32,244 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 100 states to 90 states and 115 transitions. [2021-12-28 09:40:32,244 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 90 [2021-12-28 09:40:32,245 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 90 [2021-12-28 09:40:32,245 INFO L73 IsDeterministic]: Start isDeterministic. Operand 90 states and 115 transitions. [2021-12-28 09:40:32,246 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-28 09:40:32,246 INFO L681 BuchiCegarLoop]: Abstraction has 90 states and 115 transitions. [2021-12-28 09:40:32,260 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states and 115 transitions. [2021-12-28 09:40:32,270 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 90. [2021-12-28 09:40:32,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 90 states, 90 states have (on average 1.2777777777777777) internal successors, (115), 89 states have internal predecessors, (115), 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) [2021-12-28 09:40:32,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 115 transitions. [2021-12-28 09:40:32,273 INFO L704 BuchiCegarLoop]: Abstraction has 90 states and 115 transitions. [2021-12-28 09:40:32,273 INFO L587 BuchiCegarLoop]: Abstraction has 90 states and 115 transitions. [2021-12-28 09:40:32,273 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-12-28 09:40:32,273 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 90 states and 115 transitions. [2021-12-28 09:40:32,274 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 61 [2021-12-28 09:40:32,275 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-28 09:40:32,275 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-28 09:40:32,275 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-12-28 09:40:32,276 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] [2021-12-28 09:40:32,276 INFO L791 eck$LassoCheckResult]: Stem: 305#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(13, 4);call #Ultimate.allocInit(3, 5);call write~init~int(79, 5, 0, 1);call write~init~int(110, 5, 1, 1);call write~init~int(0, 5, 2, 1);call #Ultimate.allocInit(4, 6);call write~init~int(79, 6, 0, 1);call write~init~int(102, 6, 1, 1);call write~init~int(102, 6, 2, 1);call write~init~int(0, 6, 3, 1);call #Ultimate.allocInit(7, 7);call write~init~int(44, 7, 0, 1);call write~init~int(80, 7, 1, 1);call write~init~int(117, 7, 2, 1);call write~init~int(109, 7, 3, 1);call write~init~int(112, 7, 4, 1);call write~init~int(58, 7, 5, 1);call write~init~int(0, 7, 6, 1);call #Ultimate.allocInit(3, 8);call write~init~int(79, 8, 0, 1);call write~init~int(110, 8, 1, 1);call write~init~int(0, 8, 2, 1);call #Ultimate.allocInit(4, 9);call write~init~int(79, 9, 0, 1);call write~init~int(102, 9, 1, 1);call write~init~int(102, 9, 2, 1);call write~init~int(0, 9, 3, 1);call #Ultimate.allocInit(3, 10);call write~init~int(41, 10, 0, 1);call write~init~int(32, 10, 1, 1);call write~init~int(0, 10, 2, 1);call #Ultimate.allocInit(2, 11);call write~init~int(10, 11, 0, 1);call write~init~int(0, 11, 1, 1);call #Ultimate.allocInit(30, 12);call #Ultimate.allocInit(9, 13);call #Ultimate.allocInit(21, 14);call #Ultimate.allocInit(30, 15);call #Ultimate.allocInit(9, 16);call #Ultimate.allocInit(21, 17);call #Ultimate.allocInit(30, 18);call #Ultimate.allocInit(9, 19);call #Ultimate.allocInit(25, 20);call #Ultimate.allocInit(30, 21);call #Ultimate.allocInit(9, 22);call #Ultimate.allocInit(25, 23);call #Ultimate.allocInit(13, 24);call #Ultimate.allocInit(7, 25);call write~init~int(44, 25, 0, 1);call write~init~int(77, 25, 1, 1);call write~init~int(101, 25, 2, 1);call write~init~int(116, 25, 3, 1);call write~init~int(104, 25, 4, 1);call write~init~int(58, 25, 5, 1);call write~init~int(0, 25, 6, 1);call #Ultimate.allocInit(5, 26);call write~init~int(67, 26, 0, 1);call write~init~int(82, 26, 1, 1);call write~init~int(73, 26, 2, 1);call write~init~int(84, 26, 3, 1);call write~init~int(0, 26, 4, 1);call #Ultimate.allocInit(3, 27);call write~init~int(79, 27, 0, 1);call write~init~int(75, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(41, 28, 0, 1);call write~init~int(0, 28, 1, 1);~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 293#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret46#1, main_~retValue_acc~7#1, main_~tmp~7#1;havoc main_~retValue_acc~7#1;havoc main_~tmp~7#1;assume { :begin_inline_select_helpers } true; 294#L84 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 230#L77 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; 231#L92 main_#t~ret46#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~7#1 := main_#t~ret46#1;havoc main_#t~ret46#1; 298#L817 assume 0 != main_~tmp~7#1;assume { :begin_inline_setup } true; 282#L794 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet42#1, test_#t~nondet43#1, test_#t~nondet44#1, test_#t~nondet45#1, test_~splverifierCounter~0#1, test_~tmp~6#1, test_~tmp___0~1#1, test_~tmp___1~1#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~6#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~1#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 240#L678-2 [2021-12-28 09:40:32,276 INFO L793 eck$LassoCheckResult]: Loop: 240#L678-2 assume !false; 266#L679 assume test_~splverifierCounter~0#1 < 4; 285#L680 test_~tmp~6#1 := test_#t~nondet42#1;havoc test_#t~nondet42#1; 283#L688 assume !(0 != test_~tmp~6#1); 261#L688-2 test_~tmp___0~1#1 := test_#t~nondet43#1;havoc test_#t~nondet43#1; 262#L698 assume !(0 != test_~tmp___0~1#1); 275#L698-2 test_~tmp___2~0#1 := test_#t~nondet44#1;havoc test_#t~nondet44#1; 235#L708 assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 228#L295 assume { :end_inline_startSystem } true; 229#L716-2 assume { :begin_inline_timeShift } true; 277#L148 assume !(0 != ~pumpRunning~0); 278#L148-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret8#1, processEnvironment_~tmp~1#1;havoc processEnvironment_~tmp~1#1; 221#L180 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__methaneQuery } true; 223#L172-1 assume { :end_inline_processEnvironment__wrappee__methaneQuery } true; 245#L180-1 assume { :end_inline_processEnvironment } true; 256#L155-1 assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret5#1, __utac_acc__Specification3_spec__1_#t~ret6#1, __utac_acc__Specification3_spec__1_#t~ret7#1, __utac_acc__Specification3_spec__1_~tmp~0#1, __utac_acc__Specification3_spec__1_~tmp___0~0#1, __utac_acc__Specification3_spec__1_~tmp___1~0#1;havoc __utac_acc__Specification3_spec__1_~tmp~0#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~0#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~0#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~8#1;havoc isMethaneLevelCritical_~retValue_acc~8#1;isMethaneLevelCritical_~retValue_acc~8#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~8#1; 307#L874-1 __utac_acc__Specification3_spec__1_#t~ret5#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~0#1 := __utac_acc__Specification3_spec__1_#t~ret5#1;havoc __utac_acc__Specification3_spec__1_#t~ret5#1; 296#L109 assume 0 != __utac_acc__Specification3_spec__1_~tmp~0#1; 297#L115-1 assume { :end_inline___utac_acc__Specification3_spec__1 } true; 239#L165 assume { :end_inline_timeShift } true; 240#L678-2 [2021-12-28 09:40:32,277 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 09:40:32,277 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 2 times [2021-12-28 09:40:32,277 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 09:40:32,277 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [461414651] [2021-12-28 09:40:32,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 09:40:32,278 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 09:40:32,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-28 09:40:32,304 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-28 09:40:32,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-28 09:40:32,323 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-28 09:40:32,324 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 09:40:32,324 INFO L85 PathProgramCache]: Analyzing trace with hash 1543629914, now seen corresponding path program 1 times [2021-12-28 09:40:32,324 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 09:40:32,324 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1616797779] [2021-12-28 09:40:32,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 09:40:32,325 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 09:40:32,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-28 09:40:32,331 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-28 09:40:32,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-28 09:40:32,336 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-28 09:40:32,337 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 09:40:32,337 INFO L85 PathProgramCache]: Analyzing trace with hash -104368098, now seen corresponding path program 1 times [2021-12-28 09:40:32,337 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 09:40:32,338 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1766594280] [2021-12-28 09:40:32,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 09:40:32,338 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 09:40:32,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 09:40:32,415 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-28 09:40:32,416 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 09:40:32,417 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1766594280] [2021-12-28 09:40:32,417 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1766594280] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 09:40:32,418 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 09:40:32,418 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-28 09:40:32,418 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [585367465] [2021-12-28 09:40:32,419 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 09:40:32,522 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 09:40:32,523 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-28 09:40:32,523 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-28 09:40:32,524 INFO L87 Difference]: Start difference. First operand 90 states and 115 transitions. cyclomatic complexity: 27 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) [2021-12-28 09:40:32,644 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 09:40:32,645 INFO L93 Difference]: Finished difference Result 311 states and 400 transitions. [2021-12-28 09:40:32,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-28 09:40:32,646 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 311 states and 400 transitions. [2021-12-28 09:40:32,649 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 219 [2021-12-28 09:40:32,652 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 311 states to 311 states and 400 transitions. [2021-12-28 09:40:32,652 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 311 [2021-12-28 09:40:32,653 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 311 [2021-12-28 09:40:32,653 INFO L73 IsDeterministic]: Start isDeterministic. Operand 311 states and 400 transitions. [2021-12-28 09:40:32,664 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-28 09:40:32,664 INFO L681 BuchiCegarLoop]: Abstraction has 311 states and 400 transitions. [2021-12-28 09:40:32,665 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 311 states and 400 transitions. [2021-12-28 09:40:32,674 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 311 to 173. [2021-12-28 09:40:32,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 173 states, 173 states have (on average 1.2658959537572254) internal successors, (219), 172 states have internal predecessors, (219), 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) [2021-12-28 09:40:32,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 173 states to 173 states and 219 transitions. [2021-12-28 09:40:32,676 INFO L704 BuchiCegarLoop]: Abstraction has 173 states and 219 transitions. [2021-12-28 09:40:32,676 INFO L587 BuchiCegarLoop]: Abstraction has 173 states and 219 transitions. [2021-12-28 09:40:32,676 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-12-28 09:40:32,677 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 173 states and 219 transitions. [2021-12-28 09:40:32,678 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 122 [2021-12-28 09:40:32,678 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-28 09:40:32,678 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-28 09:40:32,679 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-12-28 09:40:32,679 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] [2021-12-28 09:40:32,679 INFO L791 eck$LassoCheckResult]: Stem: 732#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(13, 4);call #Ultimate.allocInit(3, 5);call write~init~int(79, 5, 0, 1);call write~init~int(110, 5, 1, 1);call write~init~int(0, 5, 2, 1);call #Ultimate.allocInit(4, 6);call write~init~int(79, 6, 0, 1);call write~init~int(102, 6, 1, 1);call write~init~int(102, 6, 2, 1);call write~init~int(0, 6, 3, 1);call #Ultimate.allocInit(7, 7);call write~init~int(44, 7, 0, 1);call write~init~int(80, 7, 1, 1);call write~init~int(117, 7, 2, 1);call write~init~int(109, 7, 3, 1);call write~init~int(112, 7, 4, 1);call write~init~int(58, 7, 5, 1);call write~init~int(0, 7, 6, 1);call #Ultimate.allocInit(3, 8);call write~init~int(79, 8, 0, 1);call write~init~int(110, 8, 1, 1);call write~init~int(0, 8, 2, 1);call #Ultimate.allocInit(4, 9);call write~init~int(79, 9, 0, 1);call write~init~int(102, 9, 1, 1);call write~init~int(102, 9, 2, 1);call write~init~int(0, 9, 3, 1);call #Ultimate.allocInit(3, 10);call write~init~int(41, 10, 0, 1);call write~init~int(32, 10, 1, 1);call write~init~int(0, 10, 2, 1);call #Ultimate.allocInit(2, 11);call write~init~int(10, 11, 0, 1);call write~init~int(0, 11, 1, 1);call #Ultimate.allocInit(30, 12);call #Ultimate.allocInit(9, 13);call #Ultimate.allocInit(21, 14);call #Ultimate.allocInit(30, 15);call #Ultimate.allocInit(9, 16);call #Ultimate.allocInit(21, 17);call #Ultimate.allocInit(30, 18);call #Ultimate.allocInit(9, 19);call #Ultimate.allocInit(25, 20);call #Ultimate.allocInit(30, 21);call #Ultimate.allocInit(9, 22);call #Ultimate.allocInit(25, 23);call #Ultimate.allocInit(13, 24);call #Ultimate.allocInit(7, 25);call write~init~int(44, 25, 0, 1);call write~init~int(77, 25, 1, 1);call write~init~int(101, 25, 2, 1);call write~init~int(116, 25, 3, 1);call write~init~int(104, 25, 4, 1);call write~init~int(58, 25, 5, 1);call write~init~int(0, 25, 6, 1);call #Ultimate.allocInit(5, 26);call write~init~int(67, 26, 0, 1);call write~init~int(82, 26, 1, 1);call write~init~int(73, 26, 2, 1);call write~init~int(84, 26, 3, 1);call write~init~int(0, 26, 4, 1);call #Ultimate.allocInit(3, 27);call write~init~int(79, 27, 0, 1);call write~init~int(75, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(41, 28, 0, 1);call write~init~int(0, 28, 1, 1);~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 717#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret46#1, main_~retValue_acc~7#1, main_~tmp~7#1;havoc main_~retValue_acc~7#1;havoc main_~tmp~7#1;assume { :begin_inline_select_helpers } true; 718#L84 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 649#L77 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; 650#L92 main_#t~ret46#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~7#1 := main_#t~ret46#1;havoc main_#t~ret46#1; 724#L817 assume 0 != main_~tmp~7#1;assume { :begin_inline_setup } true; 703#L794 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet42#1, test_#t~nondet43#1, test_#t~nondet44#1, test_#t~nondet45#1, test_~splverifierCounter~0#1, test_~tmp~6#1, test_~tmp___0~1#1, test_~tmp___1~1#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~6#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~1#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 659#L678-2 [2021-12-28 09:40:32,679 INFO L793 eck$LassoCheckResult]: Loop: 659#L678-2 assume !false; 687#L679 assume test_~splverifierCounter~0#1 < 4; 707#L680 test_~tmp~6#1 := test_#t~nondet42#1;havoc test_#t~nondet42#1; 705#L688 assume !(0 != test_~tmp~6#1); 680#L688-2 test_~tmp___0~1#1 := test_#t~nondet43#1;havoc test_#t~nondet43#1; 681#L698 assume !(0 != test_~tmp___0~1#1); 696#L698-2 test_~tmp___2~0#1 := test_#t~nondet44#1;havoc test_#t~nondet44#1; 654#L708 assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 647#L295 assume { :end_inline_startSystem } true; 648#L716-2 assume { :begin_inline_timeShift } true; 698#L148 assume !(0 != ~pumpRunning~0); 699#L148-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret8#1, processEnvironment_~tmp~1#1;havoc processEnvironment_~tmp~1#1; 640#L180 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__methaneQuery } true; 642#L172-1 assume { :end_inline_processEnvironment__wrappee__methaneQuery } true; 664#L180-1 assume { :end_inline_processEnvironment } true; 674#L155-1 assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret5#1, __utac_acc__Specification3_spec__1_#t~ret6#1, __utac_acc__Specification3_spec__1_#t~ret7#1, __utac_acc__Specification3_spec__1_~tmp~0#1, __utac_acc__Specification3_spec__1_~tmp___0~0#1, __utac_acc__Specification3_spec__1_~tmp___1~0#1;havoc __utac_acc__Specification3_spec__1_~tmp~0#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~0#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~0#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~8#1;havoc isMethaneLevelCritical_~retValue_acc~8#1;isMethaneLevelCritical_~retValue_acc~8#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~8#1; 735#L874-1 __utac_acc__Specification3_spec__1_#t~ret5#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~0#1 := __utac_acc__Specification3_spec__1_#t~ret5#1;havoc __utac_acc__Specification3_spec__1_#t~ret5#1; 736#L109 assume !(0 != __utac_acc__Specification3_spec__1_~tmp~0#1);assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~9#1;havoc getWaterLevel_~retValue_acc~9#1;getWaterLevel_~retValue_acc~9#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~9#1; 709#L906 __utac_acc__Specification3_spec__1_#t~ret6#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification3_spec__1_~tmp___0~0#1 := __utac_acc__Specification3_spec__1_#t~ret6#1;havoc __utac_acc__Specification3_spec__1_#t~ret6#1; 710#L115 assume !(2 == __utac_acc__Specification3_spec__1_~tmp___0~0#1); 770#L115-1 assume { :end_inline___utac_acc__Specification3_spec__1 } true; 658#L165 assume { :end_inline_timeShift } true; 659#L678-2 [2021-12-28 09:40:32,680 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 09:40:32,680 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 3 times [2021-12-28 09:40:32,680 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 09:40:32,680 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [10462567] [2021-12-28 09:40:32,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 09:40:32,681 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 09:40:32,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-28 09:40:32,689 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-28 09:40:32,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-28 09:40:32,699 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-28 09:40:32,699 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 09:40:32,699 INFO L85 PathProgramCache]: Analyzing trace with hash 1665881389, now seen corresponding path program 1 times [2021-12-28 09:40:32,700 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 09:40:32,700 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [3168893] [2021-12-28 09:40:32,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 09:40:32,700 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 09:40:32,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-28 09:40:32,705 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-28 09:40:32,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-28 09:40:32,711 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-28 09:40:32,711 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 09:40:32,712 INFO L85 PathProgramCache]: Analyzing trace with hash -1512243215, now seen corresponding path program 1 times [2021-12-28 09:40:32,712 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 09:40:32,712 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1575288120] [2021-12-28 09:40:32,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 09:40:32,712 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 09:40:32,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-28 09:40:32,723 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-28 09:40:32,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-28 09:40:32,735 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-28 09:40:35,451 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.12 09:40:35 BoogieIcfgContainer [2021-12-28 09:40:35,451 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-12-28 09:40:35,452 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-28 09:40:35,452 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-28 09:40:35,452 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-28 09:40:35,453 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.12 09:40:31" (3/4) ... [2021-12-28 09:40:35,455 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2021-12-28 09:40:35,501 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-12-28 09:40:35,501 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-28 09:40:35,502 INFO L158 Benchmark]: Toolchain (without parser) took 5022.18ms. Allocated memory was 54.5MB in the beginning and 98.6MB in the end (delta: 44.0MB). Free memory was 32.5MB in the beginning and 32.0MB in the end (delta: 495.4kB). Peak memory consumption was 44.0MB. Max. memory is 16.1GB. [2021-12-28 09:40:35,502 INFO L158 Benchmark]: CDTParser took 0.40ms. Allocated memory is still 54.5MB. Free memory was 36.8MB in the beginning and 36.7MB in the end (delta: 43.8kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-28 09:40:35,503 INFO L158 Benchmark]: CACSL2BoogieTranslator took 411.11ms. Allocated memory was 54.5MB in the beginning and 67.1MB in the end (delta: 12.6MB). Free memory was 32.2MB in the beginning and 42.6MB in the end (delta: -10.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2021-12-28 09:40:35,503 INFO L158 Benchmark]: Boogie Procedure Inliner took 71.16ms. Allocated memory is still 67.1MB. Free memory was 42.6MB in the beginning and 39.8MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-28 09:40:35,504 INFO L158 Benchmark]: Boogie Preprocessor took 53.70ms. Allocated memory is still 67.1MB. Free memory was 39.8MB in the beginning and 38.1MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-28 09:40:35,504 INFO L158 Benchmark]: RCFGBuilder took 500.43ms. Allocated memory is still 67.1MB. Free memory was 37.9MB in the beginning and 35.7MB in the end (delta: 2.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-12-28 09:40:35,505 INFO L158 Benchmark]: BuchiAutomizer took 3929.97ms. Allocated memory was 67.1MB in the beginning and 98.6MB in the end (delta: 31.5MB). Free memory was 35.7MB in the beginning and 35.0MB in the end (delta: 670.0kB). Peak memory consumption was 44.9MB. Max. memory is 16.1GB. [2021-12-28 09:40:35,506 INFO L158 Benchmark]: Witness Printer took 48.98ms. Allocated memory is still 98.6MB. Free memory was 35.0MB in the beginning and 32.0MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-28 09:40:35,509 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.40ms. Allocated memory is still 54.5MB. Free memory was 36.8MB in the beginning and 36.7MB in the end (delta: 43.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 411.11ms. Allocated memory was 54.5MB in the beginning and 67.1MB in the end (delta: 12.6MB). Free memory was 32.2MB in the beginning and 42.6MB in the end (delta: -10.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 71.16ms. Allocated memory is still 67.1MB. Free memory was 42.6MB in the beginning and 39.8MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 53.70ms. Allocated memory is still 67.1MB. Free memory was 39.8MB in the beginning and 38.1MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 500.43ms. Allocated memory is still 67.1MB. Free memory was 37.9MB in the beginning and 35.7MB in the end (delta: 2.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 3929.97ms. Allocated memory was 67.1MB in the beginning and 98.6MB in the end (delta: 31.5MB). Free memory was 35.7MB in the beginning and 35.0MB in the end (delta: 670.0kB). Peak memory consumption was 44.9MB. Max. memory is 16.1GB. * Witness Printer took 48.98ms. Allocated memory is still 98.6MB. Free memory was 35.0MB in the beginning and 32.0MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 2 terminating modules (2 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.2 modules have a trivial ranking function, the largest among these consists of 6 locations. The remainder module has 173 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 3.8s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 3.4s. Construction of modules took 0.0s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 0. Minimization of det autom 2. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 138 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 173 states and ocurred in iteration 2. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 752 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 752 mSDsluCounter, 751 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 476 mSDsCounter, 28 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 91 IncrementalHoareTripleChecker+Invalid, 119 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 28 mSolverCounterUnsat, 275 mSDtfsCounter, 91 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: 678]: 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, retValue_acc=0, NULL=0, head=0, tmp___0=0, pumpRunning=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@17e2a15b=0, NULL=1, retValue_acc=1, methaneLevelCritical=0, tmp___0=1, \result=0, tmp=0, retValue_acc=1, \result=1, retValue_acc=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@559b4a3=0, tmp___1=0, tmp=1, tmp___2=29, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4eed722d=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@226aafc5=29, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@ecd5fe0=0, cleanupTimeShifts=4, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1969c9d2=0, \result=0, tmp=0, head=0, \result=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7466ae9d=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@64c97713=0, tmp___1=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7071794f=0, waterLevel=1, systemActive=1, tmp=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 678]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L141] int pumpRunning = 0; [L142] int systemActive = 1; [L468] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L735] int cleanupTimeShifts = 4; [L831] int waterLevel = 1; [L832] int methaneLevelCritical = 0; [L808] int retValue_acc ; [L809] int tmp ; [L813] FCALL select_helpers() [L814] FCALL select_features() [L815] CALL, EXPR valid_product() [L88] int retValue_acc ; [L91] retValue_acc = 1 [L92] return (retValue_acc); [L815] RET, EXPR valid_product() [L815] tmp = valid_product() [L817] COND TRUE \read(tmp) [L819] FCALL setup() [L820] CALL runTest() [L802] CALL test() [L669] int splverifierCounter ; [L670] int tmp ; [L671] int tmp___0 ; [L672] int tmp___1 ; [L673] int tmp___2 ; [L676] splverifierCounter = 0 Loop: [L678] COND TRUE 1 [L680] COND TRUE splverifierCounter < 4 [L686] tmp = __VERIFIER_nondet_int() [L688] COND FALSE !(\read(tmp)) [L696] tmp___0 = __VERIFIER_nondet_int() [L698] COND FALSE !(\read(tmp___0)) [L706] tmp___2 = __VERIFIER_nondet_int() [L708] COND TRUE \read(tmp___2) [L710] CALL startSystem() [L294] systemActive = 1 [L710] RET startSystem() [L723] CALL timeShift() [L148] COND FALSE !(\read(pumpRunning)) [L155] COND TRUE \read(systemActive) [L157] CALL processEnvironment() [L177] int tmp ; [L180] COND FALSE !(\read(pumpRunning)) [L195] FCALL processEnvironment__wrappee__methaneQuery() [L157] RET processEnvironment() [L163] CALL __utac_acc__Specification3_spec__1() [L101] int tmp ; [L102] int tmp___0 ; [L103] int tmp___1 ; [L107] CALL, EXPR isMethaneLevelCritical() [L870] int retValue_acc ; [L873] retValue_acc = methaneLevelCritical [L874] return (retValue_acc); [L107] RET, EXPR isMethaneLevelCritical() [L107] tmp = isMethaneLevelCritical() [L109] COND FALSE !(\read(tmp)) [L113] CALL, EXPR getWaterLevel() [L902] int retValue_acc ; [L905] retValue_acc = waterLevel [L906] return (retValue_acc); [L113] RET, EXPR getWaterLevel() [L113] tmp___0 = getWaterLevel() [L115] COND FALSE !(tmp___0 == 2) [L163] RET __utac_acc__Specification3_spec__1() [L723] RET timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2021-12-28 09:40:35,562 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)