./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/minepump_spec1_product60.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 3a877d22 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_spec1_product60.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 0fa225959be52b1defd5d055d32ae3a8dd944c37a01adb589e2f547028e60f67 --- Real Ultimate output --- This is Ultimate 0.2.2-3a877d227dc491413fd706022d0c47cd97beb353-3a877d2 [2021-12-15 17:17:55,182 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-15 17:17:55,184 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-15 17:17:55,202 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-15 17:17:55,203 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-15 17:17:55,204 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-15 17:17:55,205 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-15 17:17:55,206 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-15 17:17:55,207 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-15 17:17:55,208 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-15 17:17:55,209 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-15 17:17:55,209 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-15 17:17:55,210 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-15 17:17:55,210 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-15 17:17:55,211 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-15 17:17:55,212 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-15 17:17:55,213 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-15 17:17:55,214 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-15 17:17:55,215 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-15 17:17:55,216 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-15 17:17:55,217 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-15 17:17:55,218 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-15 17:17:55,219 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-15 17:17:55,219 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-15 17:17:55,221 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-15 17:17:55,221 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-15 17:17:55,222 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-15 17:17:55,222 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-15 17:17:55,222 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-15 17:17:55,223 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-15 17:17:55,227 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-15 17:17:55,227 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-15 17:17:55,228 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-15 17:17:55,229 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-15 17:17:55,230 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-15 17:17:55,231 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-15 17:17:55,232 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-15 17:17:55,233 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-15 17:17:55,233 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-15 17:17:55,233 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-15 17:17:55,234 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-15 17:17:55,235 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-12-15 17:17:55,256 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-15 17:17:55,256 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-15 17:17:55,256 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-15 17:17:55,257 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-15 17:17:55,257 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-15 17:17:55,257 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-15 17:17:55,258 INFO L138 SettingsManager]: * Use SBE=true [2021-12-15 17:17:55,258 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-12-15 17:17:55,258 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-12-15 17:17:55,258 INFO L138 SettingsManager]: * Use old map elimination=false [2021-12-15 17:17:55,258 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-12-15 17:17:55,258 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-12-15 17:17:55,258 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-12-15 17:17:55,259 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-15 17:17:55,259 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-15 17:17:55,259 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-12-15 17:17:55,259 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-15 17:17:55,259 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-15 17:17:55,259 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-15 17:17:55,259 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-12-15 17:17:55,259 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-12-15 17:17:55,260 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-12-15 17:17:55,260 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-15 17:17:55,260 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-15 17:17:55,260 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-12-15 17:17:55,260 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-15 17:17:55,260 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-12-15 17:17:55,260 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-15 17:17:55,261 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-15 17:17:55,261 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-15 17:17:55,261 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-15 17:17:55,261 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-15 17:17:55,261 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-12-15 17:17:55,262 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0fa225959be52b1defd5d055d32ae3a8dd944c37a01adb589e2f547028e60f67 [2021-12-15 17:17:55,426 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-15 17:17:55,458 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-15 17:17:55,459 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-15 17:17:55,460 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-15 17:17:55,462 INFO L275 PluginConnector]: CDTParser initialized [2021-12-15 17:17:55,463 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec1_product60.cil.c [2021-12-15 17:17:55,527 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f11833929/c48bd58205824412aba217639b3ad36e/FLAG16d57c74a [2021-12-15 17:17:55,944 INFO L306 CDTParser]: Found 1 translation units. [2021-12-15 17:17:55,945 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec1_product60.cil.c [2021-12-15 17:17:55,953 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f11833929/c48bd58205824412aba217639b3ad36e/FLAG16d57c74a [2021-12-15 17:17:55,961 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f11833929/c48bd58205824412aba217639b3ad36e [2021-12-15 17:17:55,963 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-15 17:17:55,964 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-15 17:17:55,965 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-15 17:17:55,965 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-15 17:17:55,969 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-15 17:17:55,969 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 05:17:55" (1/1) ... [2021-12-15 17:17:55,970 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4bf2bd48 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:17:55, skipping insertion in model container [2021-12-15 17:17:55,970 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 05:17:55" (1/1) ... [2021-12-15 17:17:55,975 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-15 17:17:56,010 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-15 17:17:56,222 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_spec1_product60.cil.c[14569,14582] [2021-12-15 17:17:56,237 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 17:17:56,257 INFO L203 MainTranslator]: Completed pre-run [2021-12-15 17:17:56,315 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_spec1_product60.cil.c[14569,14582] [2021-12-15 17:17:56,328 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 17:17:56,343 INFO L208 MainTranslator]: Completed translation [2021-12-15 17:17:56,344 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:17:56 WrapperNode [2021-12-15 17:17:56,344 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-15 17:17:56,345 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-15 17:17:56,345 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-15 17:17:56,345 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-15 17:17:56,357 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:17:56" (1/1) ... [2021-12-15 17:17:56,371 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:17:56" (1/1) ... [2021-12-15 17:17:56,401 INFO L137 Inliner]: procedures = 58, calls = 159, calls flagged for inlining = 56, calls inlined = 98, statements flattened = 735 [2021-12-15 17:17:56,401 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-15 17:17:56,403 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-15 17:17:56,403 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-15 17:17:56,403 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-15 17:17:56,409 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:17:56" (1/1) ... [2021-12-15 17:17:56,409 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:17:56" (1/1) ... [2021-12-15 17:17:56,412 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:17:56" (1/1) ... [2021-12-15 17:17:56,412 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:17:56" (1/1) ... [2021-12-15 17:17:56,419 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:17:56" (1/1) ... [2021-12-15 17:17:56,425 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:17:56" (1/1) ... [2021-12-15 17:17:56,427 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:17:56" (1/1) ... [2021-12-15 17:17:56,430 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-15 17:17:56,430 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-15 17:17:56,431 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-15 17:17:56,431 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-15 17:17:56,432 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:17:56" (1/1) ... [2021-12-15 17:17:56,437 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-15 17:17:56,448 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 17:17:56,458 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) [2021-12-15 17:17:56,466 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 [2021-12-15 17:17:56,487 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-15 17:17:56,488 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-15 17:17:56,488 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-15 17:17:56,488 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-15 17:17:56,540 INFO L236 CfgBuilder]: Building ICFG [2021-12-15 17:17:56,541 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-15 17:17:56,919 INFO L277 CfgBuilder]: Performing block encoding [2021-12-15 17:17:56,925 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-15 17:17:56,925 INFO L301 CfgBuilder]: Removed 2 assume(true) statements. [2021-12-15 17:17:56,927 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 05:17:56 BoogieIcfgContainer [2021-12-15 17:17:56,927 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-15 17:17:56,927 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-12-15 17:17:56,928 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-12-15 17:17:56,933 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-12-15 17:17:56,933 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-15 17:17:56,934 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 15.12 05:17:55" (1/3) ... [2021-12-15 17:17:56,934 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6eef58d2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 15.12 05:17:56, skipping insertion in model container [2021-12-15 17:17:56,934 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-15 17:17:56,934 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:17:56" (2/3) ... [2021-12-15 17:17:56,935 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6eef58d2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 15.12 05:17:56, skipping insertion in model container [2021-12-15 17:17:56,935 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-15 17:17:56,935 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 05:17:56" (3/3) ... [2021-12-15 17:17:56,936 INFO L388 chiAutomizerObserver]: Analyzing ICFG minepump_spec1_product60.cil.c [2021-12-15 17:17:56,980 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-12-15 17:17:56,980 INFO L360 BuchiCegarLoop]: Hoare is false [2021-12-15 17:17:56,980 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-12-15 17:17:56,981 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-12-15 17:17:56,981 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-12-15 17:17:56,981 INFO L364 BuchiCegarLoop]: Difference is false [2021-12-15 17:17:56,981 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-12-15 17:17:56,981 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-12-15 17:17:57,007 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 191 states, 190 states have (on average 1.3578947368421053) internal successors, (258), 190 states have internal predecessors, (258), 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) [2021-12-15 17:17:57,029 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 125 [2021-12-15 17:17:57,029 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-15 17:17:57,029 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-15 17:17:57,034 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-12-15 17:17:57,034 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 17:17:57,034 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-12-15 17:17:57,035 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 191 states, 190 states have (on average 1.3578947368421053) internal successors, (258), 190 states have internal predecessors, (258), 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) [2021-12-15 17:17:57,041 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 125 [2021-12-15 17:17:57,041 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-15 17:17:57,041 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-15 17:17:57,042 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-12-15 17:17:57,042 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 17:17:57,045 INFO L791 eck$LassoCheckResult]: Stem: 170#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(13, 4);call #Ultimate.allocInit(7, 5);call write~init~int(44, 5, 0, 1);call write~init~int(77, 5, 1, 1);call write~init~int(101, 5, 2, 1);call write~init~int(116, 5, 3, 1);call write~init~int(104, 5, 4, 1);call write~init~int(58, 5, 5, 1);call write~init~int(0, 5, 6, 1);call #Ultimate.allocInit(5, 6);call write~init~int(67, 6, 0, 1);call write~init~int(82, 6, 1, 1);call write~init~int(73, 6, 2, 1);call write~init~int(84, 6, 3, 1);call write~init~int(0, 6, 4, 1);call #Ultimate.allocInit(3, 7);call write~init~int(79, 7, 0, 1);call write~init~int(75, 7, 1, 1);call write~init~int(0, 7, 2, 1);call #Ultimate.allocInit(2, 8);call write~init~int(41, 8, 0, 1);call write~init~int(0, 8, 1, 1);call #Ultimate.allocInit(30, 9);call #Ultimate.allocInit(9, 10);call #Ultimate.allocInit(21, 11);call #Ultimate.allocInit(30, 12);call #Ultimate.allocInit(9, 13);call #Ultimate.allocInit(21, 14);call #Ultimate.allocInit(30, 15);call #Ultimate.allocInit(9, 16);call #Ultimate.allocInit(25, 17);call #Ultimate.allocInit(30, 18);call #Ultimate.allocInit(9, 19);call #Ultimate.allocInit(25, 20);call #Ultimate.allocInit(13, 21);call #Ultimate.allocInit(3, 22);call write~init~int(79, 22, 0, 1);call write~init~int(110, 22, 1, 1);call write~init~int(0, 22, 2, 1);call #Ultimate.allocInit(4, 23);call write~init~int(79, 23, 0, 1);call write~init~int(102, 23, 1, 1);call write~init~int(102, 23, 2, 1);call write~init~int(0, 23, 3, 1);call #Ultimate.allocInit(7, 24);call write~init~int(44, 24, 0, 1);call write~init~int(80, 24, 1, 1);call write~init~int(117, 24, 2, 1);call write~init~int(109, 24, 3, 1);call write~init~int(112, 24, 4, 1);call write~init~int(58, 24, 5, 1);call write~init~int(0, 24, 6, 1);call #Ultimate.allocInit(3, 25);call write~init~int(79, 25, 0, 1);call write~init~int(110, 25, 1, 1);call write~init~int(0, 25, 2, 1);call #Ultimate.allocInit(4, 26);call write~init~int(79, 26, 0, 1);call write~init~int(102, 26, 1, 1);call write~init~int(102, 26, 2, 1);call write~init~int(0, 26, 3, 1);call #Ultimate.allocInit(3, 27);call write~init~int(41, 27, 0, 1);call write~init~int(32, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(10, 28, 0, 1);call write~init~int(0, 28, 1, 1);~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1; 53#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret4#1, main_~retValue_acc~0#1, main_~tmp~0#1;havoc main_~retValue_acc~0#1;havoc main_~tmp~0#1;assume { :begin_inline_select_helpers } true; 165#L999true assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 90#L992true assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~13#1;havoc valid_product_~retValue_acc~13#1;valid_product_~retValue_acc~13#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~13#1; 113#L1007true main_#t~ret4#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~0#1 := main_#t~ret4#1;havoc main_#t~ret4#1; 75#L140true assume 0 != main_~tmp~0#1;assume { :begin_inline_setup } true; 158#L113true assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet35#1, test_#t~nondet36#1, test_#t~nondet37#1, test_#t~nondet38#1, test_~splverifierCounter~0#1, test_~tmp~5#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~5#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 29#L678-2true [2021-12-15 17:17:57,046 INFO L793 eck$LassoCheckResult]: Loop: 29#L678-2true assume !false; 141#L679true assume test_~splverifierCounter~0#1 < 4; 177#L680true test_~tmp~5#1 := test_#t~nondet35#1;havoc test_#t~nondet35#1; 139#L688true assume !(0 != test_~tmp~5#1); 27#L688-2true test_~tmp___0~1#1 := test_#t~nondet36#1;havoc test_#t~nondet36#1; 135#L698true assume !(0 != test_~tmp___0~1#1); 166#L698-2true test_~tmp___2~0#1 := test_#t~nondet37#1;havoc test_#t~nondet37#1; 13#L708true assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 91#L973true assume { :end_inline_startSystem } true; 145#L716-2true assume { :begin_inline_timeShift } true; 126#L746true assume !(0 != ~pumpRunning~0); 120#L746-2true assume !(0 != ~systemActive~0); 148#L753-1true assume { :begin_inline___utac_acc__Specification1_spec__1 } true;havoc __utac_acc__Specification1_spec__1_#t~ret10#1, __utac_acc__Specification1_spec__1_#t~ret11#1, __utac_acc__Specification1_spec__1_~tmp~1#1, __utac_acc__Specification1_spec__1_~tmp___0~0#1;havoc __utac_acc__Specification1_spec__1_~tmp~1#1;havoc __utac_acc__Specification1_spec__1_~tmp___0~0#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~1#1;havoc isMethaneLevelCritical_~retValue_acc~1#1;isMethaneLevelCritical_~retValue_acc~1#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~1#1; 94#L203-2true __utac_acc__Specification1_spec__1_#t~ret10#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification1_spec__1_~tmp~1#1 := __utac_acc__Specification1_spec__1_#t~ret10#1;havoc __utac_acc__Specification1_spec__1_#t~ret10#1; 81#L273true assume !(0 != __utac_acc__Specification1_spec__1_~tmp~1#1); 78#L273-1true assume { :end_inline___utac_acc__Specification1_spec__1 } true; 97#L763true assume { :end_inline_timeShift } true; 29#L678-2true [2021-12-15 17:17:57,051 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 17:17:57,051 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 1 times [2021-12-15 17:17:57,057 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 17:17:57,058 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1622892247] [2021-12-15 17:17:57,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 17:17:57,058 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 17:17:57,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-15 17:17:57,168 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-15 17:17:57,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-15 17:17:57,216 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-15 17:17:57,218 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 17:17:57,219 INFO L85 PathProgramCache]: Analyzing trace with hash -1231959071, now seen corresponding path program 1 times [2021-12-15 17:17:57,219 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 17:17:57,220 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [10643953] [2021-12-15 17:17:57,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 17:17:57,221 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 17:17:57,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 17:17:57,297 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 17:17:57,297 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 17:17:57,297 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [10643953] [2021-12-15 17:17:57,298 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [10643953] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 17:17:57,298 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 17:17:57,298 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-15 17:17:57,298 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2294553] [2021-12-15 17:17:57,299 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 17:17:57,301 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-12-15 17:17:57,302 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 17:17:57,328 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-15 17:17:57,330 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 17:17:57,333 INFO L87 Difference]: Start difference. First operand has 191 states, 190 states have (on average 1.3578947368421053) internal successors, (258), 190 states have internal predecessors, (258), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 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) [2021-12-15 17:17:57,406 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 17:17:57,407 INFO L93 Difference]: Finished difference Result 367 states and 483 transitions. [2021-12-15 17:17:57,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-15 17:17:57,412 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 367 states and 483 transitions. [2021-12-15 17:17:57,424 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 240 [2021-12-15 17:17:57,449 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 367 states to 347 states and 462 transitions. [2021-12-15 17:17:57,450 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 347 [2021-12-15 17:17:57,450 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 347 [2021-12-15 17:17:57,450 INFO L73 IsDeterministic]: Start isDeterministic. Operand 347 states and 462 transitions. [2021-12-15 17:17:57,452 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-15 17:17:57,452 INFO L681 BuchiCegarLoop]: Abstraction has 347 states and 462 transitions. [2021-12-15 17:17:57,465 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 347 states and 462 transitions. [2021-12-15 17:17:57,492 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 347 to 344. [2021-12-15 17:17:57,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 344 states, 344 states have (on average 1.3313953488372092) internal successors, (458), 343 states have internal predecessors, (458), 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) [2021-12-15 17:17:57,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 344 states to 344 states and 458 transitions. [2021-12-15 17:17:57,495 INFO L704 BuchiCegarLoop]: Abstraction has 344 states and 458 transitions. [2021-12-15 17:17:57,495 INFO L587 BuchiCegarLoop]: Abstraction has 344 states and 458 transitions. [2021-12-15 17:17:57,496 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-12-15 17:17:57,496 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 344 states and 458 transitions. [2021-12-15 17:17:57,498 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 237 [2021-12-15 17:17:57,498 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-15 17:17:57,498 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-15 17:17:57,499 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-12-15 17:17:57,499 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] [2021-12-15 17:17:57,500 INFO L791 eck$LassoCheckResult]: Stem: 772#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(13, 4);call #Ultimate.allocInit(7, 5);call write~init~int(44, 5, 0, 1);call write~init~int(77, 5, 1, 1);call write~init~int(101, 5, 2, 1);call write~init~int(116, 5, 3, 1);call write~init~int(104, 5, 4, 1);call write~init~int(58, 5, 5, 1);call write~init~int(0, 5, 6, 1);call #Ultimate.allocInit(5, 6);call write~init~int(67, 6, 0, 1);call write~init~int(82, 6, 1, 1);call write~init~int(73, 6, 2, 1);call write~init~int(84, 6, 3, 1);call write~init~int(0, 6, 4, 1);call #Ultimate.allocInit(3, 7);call write~init~int(79, 7, 0, 1);call write~init~int(75, 7, 1, 1);call write~init~int(0, 7, 2, 1);call #Ultimate.allocInit(2, 8);call write~init~int(41, 8, 0, 1);call write~init~int(0, 8, 1, 1);call #Ultimate.allocInit(30, 9);call #Ultimate.allocInit(9, 10);call #Ultimate.allocInit(21, 11);call #Ultimate.allocInit(30, 12);call #Ultimate.allocInit(9, 13);call #Ultimate.allocInit(21, 14);call #Ultimate.allocInit(30, 15);call #Ultimate.allocInit(9, 16);call #Ultimate.allocInit(25, 17);call #Ultimate.allocInit(30, 18);call #Ultimate.allocInit(9, 19);call #Ultimate.allocInit(25, 20);call #Ultimate.allocInit(13, 21);call #Ultimate.allocInit(3, 22);call write~init~int(79, 22, 0, 1);call write~init~int(110, 22, 1, 1);call write~init~int(0, 22, 2, 1);call #Ultimate.allocInit(4, 23);call write~init~int(79, 23, 0, 1);call write~init~int(102, 23, 1, 1);call write~init~int(102, 23, 2, 1);call write~init~int(0, 23, 3, 1);call #Ultimate.allocInit(7, 24);call write~init~int(44, 24, 0, 1);call write~init~int(80, 24, 1, 1);call write~init~int(117, 24, 2, 1);call write~init~int(109, 24, 3, 1);call write~init~int(112, 24, 4, 1);call write~init~int(58, 24, 5, 1);call write~init~int(0, 24, 6, 1);call #Ultimate.allocInit(3, 25);call write~init~int(79, 25, 0, 1);call write~init~int(110, 25, 1, 1);call write~init~int(0, 25, 2, 1);call #Ultimate.allocInit(4, 26);call write~init~int(79, 26, 0, 1);call write~init~int(102, 26, 1, 1);call write~init~int(102, 26, 2, 1);call write~init~int(0, 26, 3, 1);call #Ultimate.allocInit(3, 27);call write~init~int(41, 27, 0, 1);call write~init~int(32, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(10, 28, 0, 1);call write~init~int(0, 28, 1, 1);~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1; 658#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret4#1, main_~retValue_acc~0#1, main_~tmp~0#1;havoc main_~retValue_acc~0#1;havoc main_~tmp~0#1;assume { :begin_inline_select_helpers } true; 659#L999 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 706#L992 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~13#1;havoc valid_product_~retValue_acc~13#1;valid_product_~retValue_acc~13#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~13#1; 707#L1007 main_#t~ret4#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~0#1 := main_#t~ret4#1;havoc main_#t~ret4#1; 685#L140 assume 0 != main_~tmp~0#1;assume { :begin_inline_setup } true; 686#L113 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet35#1, test_#t~nondet36#1, test_#t~nondet37#1, test_#t~nondet38#1, test_~splverifierCounter~0#1, test_~tmp~5#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~5#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 618#L678-2 [2021-12-15 17:17:57,500 INFO L793 eck$LassoCheckResult]: Loop: 618#L678-2 assume !false; 619#L679 assume test_~splverifierCounter~0#1 < 4; 751#L680 test_~tmp~5#1 := test_#t~nondet35#1;havoc test_#t~nondet35#1; 794#L688 assume !(0 != test_~tmp~5#1); 792#L688-2 test_~tmp___0~1#1 := test_#t~nondet36#1;havoc test_#t~nondet36#1; 791#L698 assume !(0 != test_~tmp___0~1#1); 770#L698-2 test_~tmp___2~0#1 := test_#t~nondet37#1;havoc test_#t~nondet37#1; 586#L708 assume !(0 != test_~tmp___2~0#1);test_~tmp___1~0#1 := test_#t~nondet38#1;havoc test_#t~nondet38#1; 587#L716 assume !(0 != test_~tmp___1~0#1); 670#L716-2 assume { :begin_inline_timeShift } true; 737#L746 assume !(0 != ~pumpRunning~0); 731#L746-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret40#1, processEnvironment_~tmp~7#1;havoc processEnvironment_~tmp~7#1; 579#L804 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret39#1, processEnvironment__wrappee__highWaterSensor_~tmp~6#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~6#1; 581#L778-2 assume !(0 == ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true; 810#L770-3 assume { :end_inline_processEnvironment__wrappee__base } true; 805#L778-3 assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 803#L804-1 assume { :end_inline_processEnvironment } true; 757#L753-1 assume { :begin_inline___utac_acc__Specification1_spec__1 } true;havoc __utac_acc__Specification1_spec__1_#t~ret10#1, __utac_acc__Specification1_spec__1_#t~ret11#1, __utac_acc__Specification1_spec__1_~tmp~1#1, __utac_acc__Specification1_spec__1_~tmp___0~0#1;havoc __utac_acc__Specification1_spec__1_~tmp~1#1;havoc __utac_acc__Specification1_spec__1_~tmp___0~0#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~1#1;havoc isMethaneLevelCritical_~retValue_acc~1#1;isMethaneLevelCritical_~retValue_acc~1#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~1#1; 710#L203-2 __utac_acc__Specification1_spec__1_#t~ret10#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification1_spec__1_~tmp~1#1 := __utac_acc__Specification1_spec__1_#t~ret10#1;havoc __utac_acc__Specification1_spec__1_#t~ret10#1; 711#L273 assume !(0 != __utac_acc__Specification1_spec__1_~tmp~1#1); 690#L273-1 assume { :end_inline___utac_acc__Specification1_spec__1 } true; 691#L763 assume { :end_inline_timeShift } true; 618#L678-2 [2021-12-15 17:17:57,501 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 17:17:57,501 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 2 times [2021-12-15 17:17:57,502 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 17:17:57,503 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1366035618] [2021-12-15 17:17:57,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 17:17:57,503 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 17:17:57,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-15 17:17:57,531 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-15 17:17:57,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-15 17:17:57,545 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-15 17:17:57,547 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 17:17:57,547 INFO L85 PathProgramCache]: Analyzing trace with hash -1136266127, now seen corresponding path program 1 times [2021-12-15 17:17:57,547 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 17:17:57,547 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [414193446] [2021-12-15 17:17:57,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 17:17:57,554 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 17:17:57,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 17:17:57,571 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 17:17:57,571 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 17:17:57,572 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [414193446] [2021-12-15 17:17:57,573 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [414193446] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 17:17:57,573 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 17:17:57,573 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-15 17:17:57,573 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [816291740] [2021-12-15 17:17:57,576 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 17:17:57,577 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-12-15 17:17:57,577 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 17:17:57,577 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-15 17:17:57,578 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 17:17:57,578 INFO L87 Difference]: Start difference. First operand 344 states and 458 transitions. cyclomatic complexity: 117 Second operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 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) [2021-12-15 17:17:57,647 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 17:17:57,648 INFO L93 Difference]: Finished difference Result 468 states and 599 transitions. [2021-12-15 17:17:57,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-15 17:17:57,648 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 468 states and 599 transitions. [2021-12-15 17:17:57,652 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 331 [2021-12-15 17:17:57,656 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 468 states to 468 states and 599 transitions. [2021-12-15 17:17:57,657 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 468 [2021-12-15 17:17:57,658 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 468 [2021-12-15 17:17:57,658 INFO L73 IsDeterministic]: Start isDeterministic. Operand 468 states and 599 transitions. [2021-12-15 17:17:57,662 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-15 17:17:57,662 INFO L681 BuchiCegarLoop]: Abstraction has 468 states and 599 transitions. [2021-12-15 17:17:57,663 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 468 states and 599 transitions. [2021-12-15 17:17:57,678 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 468 to 468. [2021-12-15 17:17:57,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 468 states, 468 states have (on average 1.2799145299145298) internal successors, (599), 467 states have internal predecessors, (599), 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) [2021-12-15 17:17:57,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 468 states to 468 states and 599 transitions. [2021-12-15 17:17:57,684 INFO L704 BuchiCegarLoop]: Abstraction has 468 states and 599 transitions. [2021-12-15 17:17:57,684 INFO L587 BuchiCegarLoop]: Abstraction has 468 states and 599 transitions. [2021-12-15 17:17:57,684 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-12-15 17:17:57,685 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 468 states and 599 transitions. [2021-12-15 17:17:57,686 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 331 [2021-12-15 17:17:57,686 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-15 17:17:57,686 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-15 17:17:57,688 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-12-15 17:17:57,688 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 17:17:57,688 INFO L791 eck$LassoCheckResult]: Stem: 1594#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(13, 4);call #Ultimate.allocInit(7, 5);call write~init~int(44, 5, 0, 1);call write~init~int(77, 5, 1, 1);call write~init~int(101, 5, 2, 1);call write~init~int(116, 5, 3, 1);call write~init~int(104, 5, 4, 1);call write~init~int(58, 5, 5, 1);call write~init~int(0, 5, 6, 1);call #Ultimate.allocInit(5, 6);call write~init~int(67, 6, 0, 1);call write~init~int(82, 6, 1, 1);call write~init~int(73, 6, 2, 1);call write~init~int(84, 6, 3, 1);call write~init~int(0, 6, 4, 1);call #Ultimate.allocInit(3, 7);call write~init~int(79, 7, 0, 1);call write~init~int(75, 7, 1, 1);call write~init~int(0, 7, 2, 1);call #Ultimate.allocInit(2, 8);call write~init~int(41, 8, 0, 1);call write~init~int(0, 8, 1, 1);call #Ultimate.allocInit(30, 9);call #Ultimate.allocInit(9, 10);call #Ultimate.allocInit(21, 11);call #Ultimate.allocInit(30, 12);call #Ultimate.allocInit(9, 13);call #Ultimate.allocInit(21, 14);call #Ultimate.allocInit(30, 15);call #Ultimate.allocInit(9, 16);call #Ultimate.allocInit(25, 17);call #Ultimate.allocInit(30, 18);call #Ultimate.allocInit(9, 19);call #Ultimate.allocInit(25, 20);call #Ultimate.allocInit(13, 21);call #Ultimate.allocInit(3, 22);call write~init~int(79, 22, 0, 1);call write~init~int(110, 22, 1, 1);call write~init~int(0, 22, 2, 1);call #Ultimate.allocInit(4, 23);call write~init~int(79, 23, 0, 1);call write~init~int(102, 23, 1, 1);call write~init~int(102, 23, 2, 1);call write~init~int(0, 23, 3, 1);call #Ultimate.allocInit(7, 24);call write~init~int(44, 24, 0, 1);call write~init~int(80, 24, 1, 1);call write~init~int(117, 24, 2, 1);call write~init~int(109, 24, 3, 1);call write~init~int(112, 24, 4, 1);call write~init~int(58, 24, 5, 1);call write~init~int(0, 24, 6, 1);call #Ultimate.allocInit(3, 25);call write~init~int(79, 25, 0, 1);call write~init~int(110, 25, 1, 1);call write~init~int(0, 25, 2, 1);call #Ultimate.allocInit(4, 26);call write~init~int(79, 26, 0, 1);call write~init~int(102, 26, 1, 1);call write~init~int(102, 26, 2, 1);call write~init~int(0, 26, 3, 1);call #Ultimate.allocInit(3, 27);call write~init~int(41, 27, 0, 1);call write~init~int(32, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(10, 28, 0, 1);call write~init~int(0, 28, 1, 1);~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1; 1470#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret4#1, main_~retValue_acc~0#1, main_~tmp~0#1;havoc main_~retValue_acc~0#1;havoc main_~tmp~0#1;assume { :begin_inline_select_helpers } true; 1471#L999 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 1520#L992 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~13#1;havoc valid_product_~retValue_acc~13#1;valid_product_~retValue_acc~13#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~13#1; 1521#L1007 main_#t~ret4#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~0#1 := main_#t~ret4#1;havoc main_#t~ret4#1; 1500#L140 assume 0 != main_~tmp~0#1;assume { :begin_inline_setup } true; 1501#L113 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet35#1, test_#t~nondet36#1, test_#t~nondet37#1, test_#t~nondet38#1, test_~splverifierCounter~0#1, test_~tmp~5#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~5#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 1434#L678-2 [2021-12-15 17:17:57,688 INFO L793 eck$LassoCheckResult]: Loop: 1434#L678-2 assume !false; 1435#L679 assume test_~splverifierCounter~0#1 < 4; 1575#L680 test_~tmp~5#1 := test_#t~nondet35#1;havoc test_#t~nondet35#1; 1702#L688 assume !(0 != test_~tmp~5#1); 1701#L688-2 test_~tmp___0~1#1 := test_#t~nondet36#1;havoc test_#t~nondet36#1; 1700#L698 assume !(0 != test_~tmp___0~1#1); 1592#L698-2 test_~tmp___2~0#1 := test_#t~nondet37#1;havoc test_#t~nondet37#1; 1593#L708 assume !(0 != test_~tmp___2~0#1);test_~tmp___1~0#1 := test_#t~nondet38#1;havoc test_#t~nondet38#1; 1699#L716 assume !(0 != test_~tmp___1~0#1); 1519#L716-2 assume { :begin_inline_timeShift } true; 1697#L746 assume !(0 != ~pumpRunning~0); 1696#L746-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret40#1, processEnvironment_~tmp~7#1;havoc processEnvironment_~tmp~7#1; 1695#L804 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret39#1, processEnvironment__wrappee__highWaterSensor_~tmp~6#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~6#1; 1694#L778-2 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret51#1, isHighWaterLevel_~retValue_acc~10#1, isHighWaterLevel_~tmp~9#1, isHighWaterLevel_~tmp___0~2#1;havoc isHighWaterLevel_~retValue_acc~10#1;havoc isHighWaterLevel_~tmp~9#1;havoc isHighWaterLevel_~tmp___0~2#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~3#1;havoc isHighWaterSensorDry_~retValue_acc~3#1; 1693#L243-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~3#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~3#1; 1692#L248-1 isHighWaterLevel_#t~ret51#1 := isHighWaterSensorDry_#res#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~9#1 := isHighWaterLevel_#t~ret51#1;havoc isHighWaterLevel_#t~ret51#1; 1691#L924-3 assume 0 != isHighWaterLevel_~tmp~9#1;isHighWaterLevel_~tmp___0~2#1 := 0; 1689#L924-5 isHighWaterLevel_~retValue_acc~10#1 := isHighWaterLevel_~tmp___0~2#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~10#1; 1600#L930-1 processEnvironment__wrappee__highWaterSensor_#t~ret39#1 := isHighWaterLevel_#res#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~6#1 := processEnvironment__wrappee__highWaterSensor_#t~ret39#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret39#1; 1496#L782-3 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~6#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 1498#L770-2 assume { :end_inline_processEnvironment__wrappee__base } true; 1532#L778-3 assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 1428#L804-1 assume { :end_inline_processEnvironment } true; 1514#L753-1 assume { :begin_inline___utac_acc__Specification1_spec__1 } true;havoc __utac_acc__Specification1_spec__1_#t~ret10#1, __utac_acc__Specification1_spec__1_#t~ret11#1, __utac_acc__Specification1_spec__1_~tmp~1#1, __utac_acc__Specification1_spec__1_~tmp___0~0#1;havoc __utac_acc__Specification1_spec__1_~tmp~1#1;havoc __utac_acc__Specification1_spec__1_~tmp___0~0#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~1#1;havoc isMethaneLevelCritical_~retValue_acc~1#1;isMethaneLevelCritical_~retValue_acc~1#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~1#1; 1581#L203-2 __utac_acc__Specification1_spec__1_#t~ret10#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification1_spec__1_~tmp~1#1 := __utac_acc__Specification1_spec__1_#t~ret10#1;havoc __utac_acc__Specification1_spec__1_#t~ret10#1; 1509#L273 assume !(0 != __utac_acc__Specification1_spec__1_~tmp~1#1); 1510#L273-1 assume { :end_inline___utac_acc__Specification1_spec__1 } true; 1528#L763 assume { :end_inline_timeShift } true; 1434#L678-2 [2021-12-15 17:17:57,689 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 17:17:57,689 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 3 times [2021-12-15 17:17:57,689 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 17:17:57,690 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [805207503] [2021-12-15 17:17:57,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 17:17:57,690 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 17:17:57,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-15 17:17:57,706 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-15 17:17:57,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-15 17:17:57,726 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-15 17:17:57,727 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 17:17:57,727 INFO L85 PathProgramCache]: Analyzing trace with hash 1792007369, now seen corresponding path program 1 times [2021-12-15 17:17:57,728 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 17:17:57,728 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1480853116] [2021-12-15 17:17:57,728 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 17:17:57,728 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 17:17:57,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-15 17:17:57,739 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-15 17:17:57,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-15 17:17:57,749 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-15 17:17:57,750 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 17:17:57,750 INFO L85 PathProgramCache]: Analyzing trace with hash 541025421, now seen corresponding path program 1 times [2021-12-15 17:17:57,750 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 17:17:57,750 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [698676998] [2021-12-15 17:17:57,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 17:17:57,750 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 17:17:57,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-15 17:17:57,766 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-15 17:17:57,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-15 17:17:57,786 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-15 17:17:58,000 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer has thrown an exception: java.lang.UnsupportedOperationException: Set is immutable at de.uni_freiburg.informatik.ultimate.util.datastructures.ImmutableSet.retainAll(ImmutableSet.java:338) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.UnmodifiableTransFormula.removeSuperfluousVars(UnmodifiableTransFormula.java:212) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaBuilder.finishConstruction(TransFormulaBuilder.java:273) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaBuilder.getTrivialTransFormula(TransFormulaBuilder.java:285) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.LassoCheck.synthesize(LassoCheck.java:548) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.LassoCheck$LassoCheckResult.checkLoopTermination(LassoCheck.java:944) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.LassoCheck$LassoCheckResult.(LassoCheck.java:855) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.LassoCheck.(LassoCheck.java:252) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiCegarLoop.iterate(BuchiCegarLoop.java:457) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver.doTerminationAnalysis(BuchiAutomizerObserver.java:142) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver.finish(BuchiAutomizerObserver.java:397) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-12-15 17:17:58,003 INFO L158 Benchmark]: Toolchain (without parser) took 2038.44ms. Allocated memory was 86.0MB in the beginning and 132.1MB in the end (delta: 46.1MB). Free memory was 51.5MB in the beginning and 95.7MB in the end (delta: -44.2MB). Peak memory consumption was 37.5MB. Max. memory is 16.1GB. [2021-12-15 17:17:58,004 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 86.0MB. Free memory is still 49.1MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-15 17:17:58,005 INFO L158 Benchmark]: CACSL2BoogieTranslator took 378.72ms. Allocated memory was 86.0MB in the beginning and 109.1MB in the end (delta: 23.1MB). Free memory was 51.3MB in the beginning and 76.6MB in the end (delta: -25.3MB). Peak memory consumption was 9.7MB. Max. memory is 16.1GB. [2021-12-15 17:17:58,005 INFO L158 Benchmark]: Boogie Procedure Inliner took 57.04ms. Allocated memory is still 109.1MB. Free memory was 76.6MB in the beginning and 72.7MB in the end (delta: 3.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-12-15 17:17:58,006 INFO L158 Benchmark]: Boogie Preprocessor took 26.85ms. Allocated memory is still 109.1MB. Free memory was 72.7MB in the beginning and 70.3MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-15 17:17:58,006 INFO L158 Benchmark]: RCFGBuilder took 496.37ms. Allocated memory is still 109.1MB. Free memory was 70.0MB in the beginning and 76.7MB in the end (delta: -6.7MB). Peak memory consumption was 22.2MB. Max. memory is 16.1GB. [2021-12-15 17:17:58,007 INFO L158 Benchmark]: BuchiAutomizer took 1074.65ms. Allocated memory was 109.1MB in the beginning and 132.1MB in the end (delta: 23.1MB). Free memory was 76.7MB in the beginning and 95.7MB in the end (delta: -18.9MB). Peak memory consumption was 39.1MB. Max. memory is 16.1GB. [2021-12-15 17:17:58,009 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 86.0MB. Free memory is still 49.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 378.72ms. Allocated memory was 86.0MB in the beginning and 109.1MB in the end (delta: 23.1MB). Free memory was 51.3MB in the beginning and 76.6MB in the end (delta: -25.3MB). Peak memory consumption was 9.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 57.04ms. Allocated memory is still 109.1MB. Free memory was 76.6MB in the beginning and 72.7MB in the end (delta: 3.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 26.85ms. Allocated memory is still 109.1MB. Free memory was 72.7MB in the beginning and 70.3MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 496.37ms. Allocated memory is still 109.1MB. Free memory was 70.0MB in the beginning and 76.7MB in the end (delta: -6.7MB). Peak memory consumption was 22.2MB. Max. memory is 16.1GB. * BuchiAutomizer took 1074.65ms. Allocated memory was 109.1MB in the beginning and 132.1MB in the end (delta: 23.1MB). Free memory was 76.7MB in the beginning and 95.7MB in the end (delta: -18.9MB). Peak memory consumption was 39.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer: - ExceptionOrErrorResult: UnsupportedOperationException: Set is immutable de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer: UnsupportedOperationException: Set is immutable: de.uni_freiburg.informatik.ultimate.util.datastructures.ImmutableSet.retainAll(ImmutableSet.java:338) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2021-12-15 17:17:58,045 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 Using bit-precise analysis No suitable file found in config dir /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config using search string *Termination*32bit*_Bitvector*.epf No suitable settings file found using Termination*32bit*_Bitvector ERROR: UNSUPPORTED PROPERTY Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: UnsupportedOperationException: Set is immutable