./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/minepump_spec1_product34.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_product34.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 b1a2a4f6154f8b607411cb85c1a9c20d409d0ca16407a9f3bb2fc8f7ede01236 --- Real Ultimate output --- This is Ultimate 0.2.2-3a877d227dc491413fd706022d0c47cd97beb353-3a877d2 [2021-12-15 17:17:41,956 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-15 17:17:41,976 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-15 17:17:41,999 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-15 17:17:41,999 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-15 17:17:42,000 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-15 17:17:42,001 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-15 17:17:42,002 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-15 17:17:42,003 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-15 17:17:42,004 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-15 17:17:42,005 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-15 17:17:42,005 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-15 17:17:42,006 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-15 17:17:42,006 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-15 17:17:42,007 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-15 17:17:42,008 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-15 17:17:42,009 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-15 17:17:42,010 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-15 17:17:42,011 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-15 17:17:42,012 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-15 17:17:42,013 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-15 17:17:42,014 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-15 17:17:42,015 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-15 17:17:42,015 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-15 17:17:42,017 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-15 17:17:42,018 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-15 17:17:42,018 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-15 17:17:42,018 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-15 17:17:42,019 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-15 17:17:42,019 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-15 17:17:42,020 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-15 17:17:42,020 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-15 17:17:42,021 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-15 17:17:42,021 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-15 17:17:42,022 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-15 17:17:42,022 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-15 17:17:42,022 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-15 17:17:42,023 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-15 17:17:42,023 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-15 17:17:42,023 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-15 17:17:42,024 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-15 17:17:42,025 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-12-15 17:17:42,039 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-15 17:17:42,039 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-15 17:17:42,039 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-15 17:17:42,039 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-15 17:17:42,040 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-15 17:17:42,040 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-15 17:17:42,040 INFO L138 SettingsManager]: * Use SBE=true [2021-12-15 17:17:42,041 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-12-15 17:17:42,041 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-12-15 17:17:42,041 INFO L138 SettingsManager]: * Use old map elimination=false [2021-12-15 17:17:42,041 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-12-15 17:17:42,041 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-12-15 17:17:42,042 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-12-15 17:17:42,042 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-15 17:17:42,042 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-15 17:17:42,042 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-12-15 17:17:42,042 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-15 17:17:42,042 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-15 17:17:42,043 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-15 17:17:42,043 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-12-15 17:17:42,043 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-12-15 17:17:42,043 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-12-15 17:17:42,043 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-15 17:17:42,043 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-15 17:17:42,044 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-12-15 17:17:42,044 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-15 17:17:42,044 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-12-15 17:17:42,044 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-15 17:17:42,044 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-15 17:17:42,044 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-15 17:17:42,045 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-15 17:17:42,045 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-15 17:17:42,045 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-12-15 17:17:42,045 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b1a2a4f6154f8b607411cb85c1a9c20d409d0ca16407a9f3bb2fc8f7ede01236 [2021-12-15 17:17:42,245 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-15 17:17:42,261 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-15 17:17:42,263 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-15 17:17:42,264 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-15 17:17:42,265 INFO L275 PluginConnector]: CDTParser initialized [2021-12-15 17:17:42,265 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec1_product34.cil.c [2021-12-15 17:17:42,327 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a8852f98d/5be2ad8f91fa42cda207002a74b85a25/FLAG2de675f25 [2021-12-15 17:17:42,688 INFO L306 CDTParser]: Found 1 translation units. [2021-12-15 17:17:42,688 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec1_product34.cil.c [2021-12-15 17:17:42,697 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a8852f98d/5be2ad8f91fa42cda207002a74b85a25/FLAG2de675f25 [2021-12-15 17:17:43,062 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a8852f98d/5be2ad8f91fa42cda207002a74b85a25 [2021-12-15 17:17:43,064 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-15 17:17:43,064 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-15 17:17:43,076 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-15 17:17:43,076 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-15 17:17:43,078 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-15 17:17:43,092 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 05:17:43" (1/1) ... [2021-12-15 17:17:43,096 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2e5b45db and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:17:43, skipping insertion in model container [2021-12-15 17:17:43,096 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 05:17:43" (1/1) ... [2021-12-15 17:17:43,100 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-15 17:17:43,151 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-15 17:17:43,322 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_product34.cil.c[12584,12597] [2021-12-15 17:17:43,360 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 17:17:43,370 INFO L203 MainTranslator]: Completed pre-run [2021-12-15 17:17:43,404 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_product34.cil.c[12584,12597] [2021-12-15 17:17:43,415 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 17:17:43,427 INFO L208 MainTranslator]: Completed translation [2021-12-15 17:17:43,428 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:17:43 WrapperNode [2021-12-15 17:17:43,428 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-15 17:17:43,429 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-15 17:17:43,429 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-15 17:17:43,429 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-15 17:17:43,434 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:17:43" (1/1) ... [2021-12-15 17:17:43,444 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:17:43" (1/1) ... [2021-12-15 17:17:43,476 INFO L137 Inliner]: procedures = 53, calls = 150, calls flagged for inlining = 47, calls inlined = 48, statements flattened = 392 [2021-12-15 17:17:43,476 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-15 17:17:43,477 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-15 17:17:43,477 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-15 17:17:43,477 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-15 17:17:43,483 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:17:43" (1/1) ... [2021-12-15 17:17:43,483 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:17:43" (1/1) ... [2021-12-15 17:17:43,485 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:17:43" (1/1) ... [2021-12-15 17:17:43,485 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:17:43" (1/1) ... [2021-12-15 17:17:43,490 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:17:43" (1/1) ... [2021-12-15 17:17:43,510 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:17:43" (1/1) ... [2021-12-15 17:17:43,511 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:17:43" (1/1) ... [2021-12-15 17:17:43,513 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-15 17:17:43,514 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-15 17:17:43,514 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-15 17:17:43,514 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-15 17:17:43,515 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:17:43" (1/1) ... [2021-12-15 17:17:43,539 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-15 17:17:43,546 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 17:17:43,555 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 17:17:43,562 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 17:17:43,583 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-15 17:17:43,583 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-15 17:17:43,583 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-15 17:17:43,583 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-15 17:17:43,635 INFO L236 CfgBuilder]: Building ICFG [2021-12-15 17:17:43,637 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-15 17:17:43,889 INFO L277 CfgBuilder]: Performing block encoding [2021-12-15 17:17:43,895 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-15 17:17:43,895 INFO L301 CfgBuilder]: Removed 2 assume(true) statements. [2021-12-15 17:17:43,896 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 05:17:43 BoogieIcfgContainer [2021-12-15 17:17:43,896 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-15 17:17:43,897 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-12-15 17:17:43,897 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-12-15 17:17:43,903 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-12-15 17:17:43,904 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-15 17:17:43,904 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 15.12 05:17:43" (1/3) ... [2021-12-15 17:17:43,905 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@77b5c253 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 15.12 05:17:43, skipping insertion in model container [2021-12-15 17:17:43,905 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-15 17:17:43,905 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:17:43" (2/3) ... [2021-12-15 17:17:43,906 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@77b5c253 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 15.12 05:17:43, skipping insertion in model container [2021-12-15 17:17:43,906 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-15 17:17:43,906 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 05:17:43" (3/3) ... [2021-12-15 17:17:43,907 INFO L388 chiAutomizerObserver]: Analyzing ICFG minepump_spec1_product34.cil.c [2021-12-15 17:17:43,937 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-12-15 17:17:43,938 INFO L360 BuchiCegarLoop]: Hoare is false [2021-12-15 17:17:43,938 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-12-15 17:17:43,938 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-12-15 17:17:43,938 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-12-15 17:17:43,938 INFO L364 BuchiCegarLoop]: Difference is false [2021-12-15 17:17:43,938 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-12-15 17:17:43,938 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-12-15 17:17:43,971 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 106 states, 105 states have (on average 1.380952380952381) internal successors, (145), 105 states have internal predecessors, (145), 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 17:17:43,996 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 67 [2021-12-15 17:17:43,996 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-15 17:17:43,996 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-15 17:17:44,000 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-12-15 17:17:44,001 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 17:17:44,001 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-12-15 17:17:44,002 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 106 states, 105 states have (on average 1.380952380952381) internal successors, (145), 105 states have internal predecessors, (145), 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 17:17:44,014 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 67 [2021-12-15 17:17:44,014 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-15 17:17:44,014 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-15 17:17:44,015 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-12-15 17:17:44,015 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 17:17:44,022 INFO L791 eck$LassoCheckResult]: Stem: 97#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);call #Ultimate.allocInit(13, 16);call #Ultimate.allocInit(7, 17);call write~init~int(44, 17, 0, 1);call write~init~int(77, 17, 1, 1);call write~init~int(101, 17, 2, 1);call write~init~int(116, 17, 3, 1);call write~init~int(104, 17, 4, 1);call write~init~int(58, 17, 5, 1);call write~init~int(0, 17, 6, 1);call #Ultimate.allocInit(5, 18);call write~init~int(67, 18, 0, 1);call write~init~int(82, 18, 1, 1);call write~init~int(73, 18, 2, 1);call write~init~int(84, 18, 3, 1);call write~init~int(0, 18, 4, 1);call #Ultimate.allocInit(3, 19);call write~init~int(79, 19, 0, 1);call write~init~int(75, 19, 1, 1);call write~init~int(0, 19, 2, 1);call #Ultimate.allocInit(2, 20);call write~init~int(41, 20, 0, 1);call write~init~int(0, 20, 1, 1);call #Ultimate.allocInit(13, 21);call #Ultimate.allocInit(3, 22);call write~init~int(79, 22, 0, 1);call write~init~int(110, 22, 1, 1);call write~init~int(0, 22, 2, 1);call #Ultimate.allocInit(4, 23);call write~init~int(79, 23, 0, 1);call write~init~int(102, 23, 1, 1);call write~init~int(102, 23, 2, 1);call write~init~int(0, 23, 3, 1);call #Ultimate.allocInit(7, 24);call write~init~int(44, 24, 0, 1);call write~init~int(80, 24, 1, 1);call write~init~int(117, 24, 2, 1);call write~init~int(109, 24, 3, 1);call write~init~int(112, 24, 4, 1);call write~init~int(58, 24, 5, 1);call write~init~int(0, 24, 6, 1);call #Ultimate.allocInit(3, 25);call write~init~int(79, 25, 0, 1);call write~init~int(110, 25, 1, 1);call write~init~int(0, 25, 2, 1);call #Ultimate.allocInit(4, 26);call write~init~int(79, 26, 0, 1);call write~init~int(102, 26, 1, 1);call write~init~int(102, 26, 2, 1);call write~init~int(0, 26, 3, 1);call #Ultimate.allocInit(3, 27);call write~init~int(41, 27, 0, 1);call write~init~int(32, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(10, 28, 0, 1);call write~init~int(0, 28, 1, 1);~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1; 38#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; 61#L908true assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 106#L901true assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~11#1;havoc valid_product_~retValue_acc~11#1;valid_product_~retValue_acc~11#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~11#1; 95#L916true 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; 49#L140true assume 0 != main_~tmp~0#1;assume { :begin_inline_setup } true; 91#L113true assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet33#1, test_#t~nondet34#1, test_#t~nondet35#1, test_#t~nondet36#1, test_~splverifierCounter~0#1, test_~tmp~4#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~4#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 24#L639-2true [2021-12-15 17:17:44,023 INFO L793 eck$LassoCheckResult]: Loop: 24#L639-2true assume !false; 30#L640true assume test_~splverifierCounter~0#1 < 4; 42#L641true test_~tmp~4#1 := test_#t~nondet33#1;havoc test_#t~nondet33#1; 52#L649true assume !(0 != test_~tmp~4#1); 99#L649-2true test_~tmp___0~0#1 := test_#t~nondet34#1;havoc test_#t~nondet34#1; 25#L659true assume !(0 != test_~tmp___0~0#1); 63#L659-2true test_~tmp___2~0#1 := test_#t~nondet35#1;havoc test_#t~nondet35#1; 89#L669true assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 107#L856true assume { :end_inline_startSystem } true; 55#L677-2true assume { :begin_inline_timeShift } true; 65#L707true assume !(0 != ~pumpRunning~0); 93#L707-2true assume !(0 != ~systemActive~0); 21#L714-1true assume { :begin_inline___utac_acc__Specification1_spec__1 } true;havoc __utac_acc__Specification1_spec__1_#t~ret48#1, __utac_acc__Specification1_spec__1_#t~ret49#1, __utac_acc__Specification1_spec__1_~tmp~7#1, __utac_acc__Specification1_spec__1_~tmp___0~2#1;havoc __utac_acc__Specification1_spec__1_~tmp~7#1;havoc __utac_acc__Specification1_spec__1_~tmp___0~2#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~4#1;havoc isMethaneLevelCritical_~retValue_acc~4#1;isMethaneLevelCritical_~retValue_acc~4#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~4#1; 58#L577true __utac_acc__Specification1_spec__1_#t~ret48#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification1_spec__1_~tmp~7#1 := __utac_acc__Specification1_spec__1_#t~ret48#1;havoc __utac_acc__Specification1_spec__1_#t~ret48#1; 26#L868true assume !(0 != __utac_acc__Specification1_spec__1_~tmp~7#1); 72#L868-1true assume { :end_inline___utac_acc__Specification1_spec__1 } true; 19#L724true assume { :end_inline_timeShift } true; 24#L639-2true [2021-12-15 17:17:44,029 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 17:17:44,030 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 1 times [2021-12-15 17:17:44,036 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 17:17:44,036 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1659693212] [2021-12-15 17:17:44,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 17:17:44,037 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 17:17:44,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-15 17:17:44,111 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-15 17:17:44,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-15 17:17:44,162 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-15 17:17:44,164 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 17:17:44,164 INFO L85 PathProgramCache]: Analyzing trace with hash 1295146433, now seen corresponding path program 1 times [2021-12-15 17:17:44,165 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 17:17:44,165 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [710733269] [2021-12-15 17:17:44,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 17:17:44,166 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 17:17:44,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 17:17:44,228 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 17:17:44,229 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 17:17:44,229 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [710733269] [2021-12-15 17:17:44,230 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [710733269] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 17:17:44,230 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 17:17:44,230 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-15 17:17:44,230 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1516889975] [2021-12-15 17:17:44,231 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 17:17:44,234 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-12-15 17:17:44,235 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 17:17:44,262 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-15 17:17:44,262 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 17:17:44,265 INFO L87 Difference]: Start difference. First operand has 106 states, 105 states have (on average 1.380952380952381) internal successors, (145), 105 states have internal predecessors, (145), 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 17:17:44,305 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 17:17:44,305 INFO L93 Difference]: Finished difference Result 103 states and 132 transitions. [2021-12-15 17:17:44,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-15 17:17:44,310 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 103 states and 132 transitions. [2021-12-15 17:17:44,314 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 63 [2021-12-15 17:17:44,317 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 103 states to 93 states and 121 transitions. [2021-12-15 17:17:44,318 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 93 [2021-12-15 17:17:44,320 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 93 [2021-12-15 17:17:44,320 INFO L73 IsDeterministic]: Start isDeterministic. Operand 93 states and 121 transitions. [2021-12-15 17:17:44,320 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-15 17:17:44,321 INFO L681 BuchiCegarLoop]: Abstraction has 93 states and 121 transitions. [2021-12-15 17:17:44,333 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states and 121 transitions. [2021-12-15 17:17:44,343 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 93. [2021-12-15 17:17:44,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 93 states, 93 states have (on average 1.3010752688172043) internal successors, (121), 92 states have internal predecessors, (121), 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 17:17:44,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 121 transitions. [2021-12-15 17:17:44,345 INFO L704 BuchiCegarLoop]: Abstraction has 93 states and 121 transitions. [2021-12-15 17:17:44,345 INFO L587 BuchiCegarLoop]: Abstraction has 93 states and 121 transitions. [2021-12-15 17:17:44,345 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-12-15 17:17:44,346 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 93 states and 121 transitions. [2021-12-15 17:17:44,347 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 63 [2021-12-15 17:17:44,347 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-15 17:17:44,347 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-15 17:17:44,348 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-12-15 17:17:44,348 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] [2021-12-15 17:17:44,348 INFO L791 eck$LassoCheckResult]: Stem: 306#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);call #Ultimate.allocInit(13, 16);call #Ultimate.allocInit(7, 17);call write~init~int(44, 17, 0, 1);call write~init~int(77, 17, 1, 1);call write~init~int(101, 17, 2, 1);call write~init~int(116, 17, 3, 1);call write~init~int(104, 17, 4, 1);call write~init~int(58, 17, 5, 1);call write~init~int(0, 17, 6, 1);call #Ultimate.allocInit(5, 18);call write~init~int(67, 18, 0, 1);call write~init~int(82, 18, 1, 1);call write~init~int(73, 18, 2, 1);call write~init~int(84, 18, 3, 1);call write~init~int(0, 18, 4, 1);call #Ultimate.allocInit(3, 19);call write~init~int(79, 19, 0, 1);call write~init~int(75, 19, 1, 1);call write~init~int(0, 19, 2, 1);call #Ultimate.allocInit(2, 20);call write~init~int(41, 20, 0, 1);call write~init~int(0, 20, 1, 1);call #Ultimate.allocInit(13, 21);call #Ultimate.allocInit(3, 22);call write~init~int(79, 22, 0, 1);call write~init~int(110, 22, 1, 1);call write~init~int(0, 22, 2, 1);call #Ultimate.allocInit(4, 23);call write~init~int(79, 23, 0, 1);call write~init~int(102, 23, 1, 1);call write~init~int(102, 23, 2, 1);call write~init~int(0, 23, 3, 1);call #Ultimate.allocInit(7, 24);call write~init~int(44, 24, 0, 1);call write~init~int(80, 24, 1, 1);call write~init~int(117, 24, 2, 1);call write~init~int(109, 24, 3, 1);call write~init~int(112, 24, 4, 1);call write~init~int(58, 24, 5, 1);call write~init~int(0, 24, 6, 1);call #Ultimate.allocInit(3, 25);call write~init~int(79, 25, 0, 1);call write~init~int(110, 25, 1, 1);call write~init~int(0, 25, 2, 1);call #Ultimate.allocInit(4, 26);call write~init~int(79, 26, 0, 1);call write~init~int(102, 26, 1, 1);call write~init~int(102, 26, 2, 1);call write~init~int(0, 26, 3, 1);call #Ultimate.allocInit(3, 27);call write~init~int(41, 27, 0, 1);call write~init~int(32, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(10, 28, 0, 1);call write~init~int(0, 28, 1, 1);~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1; 294#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; 232#L908 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 233#L901 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~11#1;havoc valid_product_~retValue_acc~11#1;valid_product_~retValue_acc~11#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~11#1; 303#L916 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; 304#L140 assume 0 != main_~tmp~0#1;assume { :begin_inline_setup } true; 302#L113 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet33#1, test_#t~nondet34#1, test_#t~nondet35#1, test_#t~nondet36#1, test_~splverifierCounter~0#1, test_~tmp~4#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~4#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 265#L639-2 [2021-12-15 17:17:44,348 INFO L793 eck$LassoCheckResult]: Loop: 265#L639-2 assume !false; 273#L640 assume test_~splverifierCounter~0#1 < 4; 284#L641 test_~tmp~4#1 := test_#t~nondet33#1;havoc test_#t~nondet33#1; 297#L649 assume !(0 != test_~tmp~4#1); 308#L649-2 test_~tmp___0~0#1 := test_#t~nondet34#1;havoc test_#t~nondet34#1; 272#L659 assume !(0 != test_~tmp___0~0#1); 236#L659-2 test_~tmp___2~0#1 := test_#t~nondet35#1;havoc test_#t~nondet35#1; 237#L669 assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 300#L856 assume { :end_inline_startSystem } true; 239#L677-2 assume { :begin_inline_timeShift } true; 240#L707 assume !(0 != ~pumpRunning~0); 241#L707-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret37#1, processEnvironment_~tmp~5#1;havoc processEnvironment_~tmp~5#1; 218#L739 assume !(0 == ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true; 219#L731-1 assume { :end_inline_processEnvironment__wrappee__base } true; 264#L739-1 assume { :end_inline_processEnvironment } true; 268#L714-1 assume { :begin_inline___utac_acc__Specification1_spec__1 } true;havoc __utac_acc__Specification1_spec__1_#t~ret48#1, __utac_acc__Specification1_spec__1_#t~ret49#1, __utac_acc__Specification1_spec__1_~tmp~7#1, __utac_acc__Specification1_spec__1_~tmp___0~2#1;havoc __utac_acc__Specification1_spec__1_~tmp~7#1;havoc __utac_acc__Specification1_spec__1_~tmp___0~2#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~4#1;havoc isMethaneLevelCritical_~retValue_acc~4#1;isMethaneLevelCritical_~retValue_acc~4#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~4#1; 269#L577 __utac_acc__Specification1_spec__1_#t~ret48#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification1_spec__1_~tmp~7#1 := __utac_acc__Specification1_spec__1_#t~ret48#1;havoc __utac_acc__Specification1_spec__1_#t~ret48#1; 276#L868 assume !(0 != __utac_acc__Specification1_spec__1_~tmp~7#1); 260#L868-1 assume { :end_inline___utac_acc__Specification1_spec__1 } true; 261#L724 assume { :end_inline_timeShift } true; 265#L639-2 [2021-12-15 17:17:44,350 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 17:17:44,350 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 2 times [2021-12-15 17:17:44,351 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 17:17:44,351 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [179333704] [2021-12-15 17:17:44,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 17:17:44,351 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 17:17:44,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-15 17:17:44,380 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-15 17:17:44,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-15 17:17:44,419 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-15 17:17:44,420 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 17:17:44,420 INFO L85 PathProgramCache]: Analyzing trace with hash -897325560, now seen corresponding path program 1 times [2021-12-15 17:17:44,420 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 17:17:44,420 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1811769501] [2021-12-15 17:17:44,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 17:17:44,421 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 17:17:44,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 17:17:44,434 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 17:17:44,434 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 17:17:44,434 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1811769501] [2021-12-15 17:17:44,435 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1811769501] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 17:17:44,435 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 17:17:44,435 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-15 17:17:44,436 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [270849884] [2021-12-15 17:17:44,439 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 17:17:44,439 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-12-15 17:17:44,439 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 17:17:44,440 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-15 17:17:44,440 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 17:17:44,441 INFO L87 Difference]: Start difference. First operand 93 states and 121 transitions. cyclomatic complexity: 30 Second operand has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 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 17:17:44,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 17:17:44,480 INFO L93 Difference]: Finished difference Result 146 states and 184 transitions. [2021-12-15 17:17:44,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-15 17:17:44,481 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 146 states and 184 transitions. [2021-12-15 17:17:44,483 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 104 [2021-12-15 17:17:44,486 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 146 states to 146 states and 184 transitions. [2021-12-15 17:17:44,487 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 146 [2021-12-15 17:17:44,487 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 146 [2021-12-15 17:17:44,487 INFO L73 IsDeterministic]: Start isDeterministic. Operand 146 states and 184 transitions. [2021-12-15 17:17:44,489 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-15 17:17:44,489 INFO L681 BuchiCegarLoop]: Abstraction has 146 states and 184 transitions. [2021-12-15 17:17:44,490 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states and 184 transitions. [2021-12-15 17:17:44,502 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 146. [2021-12-15 17:17:44,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 146 states, 146 states have (on average 1.2602739726027397) internal successors, (184), 145 states have internal predecessors, (184), 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 17:17:44,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 184 transitions. [2021-12-15 17:17:44,504 INFO L704 BuchiCegarLoop]: Abstraction has 146 states and 184 transitions. [2021-12-15 17:17:44,504 INFO L587 BuchiCegarLoop]: Abstraction has 146 states and 184 transitions. [2021-12-15 17:17:44,504 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-12-15 17:17:44,505 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 146 states and 184 transitions. [2021-12-15 17:17:44,507 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 104 [2021-12-15 17:17:44,507 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-15 17:17:44,507 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-15 17:17:44,508 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-12-15 17:17:44,508 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] [2021-12-15 17:17:44,508 INFO L791 eck$LassoCheckResult]: Stem: 559#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);call #Ultimate.allocInit(13, 16);call #Ultimate.allocInit(7, 17);call write~init~int(44, 17, 0, 1);call write~init~int(77, 17, 1, 1);call write~init~int(101, 17, 2, 1);call write~init~int(116, 17, 3, 1);call write~init~int(104, 17, 4, 1);call write~init~int(58, 17, 5, 1);call write~init~int(0, 17, 6, 1);call #Ultimate.allocInit(5, 18);call write~init~int(67, 18, 0, 1);call write~init~int(82, 18, 1, 1);call write~init~int(73, 18, 2, 1);call write~init~int(84, 18, 3, 1);call write~init~int(0, 18, 4, 1);call #Ultimate.allocInit(3, 19);call write~init~int(79, 19, 0, 1);call write~init~int(75, 19, 1, 1);call write~init~int(0, 19, 2, 1);call #Ultimate.allocInit(2, 20);call write~init~int(41, 20, 0, 1);call write~init~int(0, 20, 1, 1);call #Ultimate.allocInit(13, 21);call #Ultimate.allocInit(3, 22);call write~init~int(79, 22, 0, 1);call write~init~int(110, 22, 1, 1);call write~init~int(0, 22, 2, 1);call #Ultimate.allocInit(4, 23);call write~init~int(79, 23, 0, 1);call write~init~int(102, 23, 1, 1);call write~init~int(102, 23, 2, 1);call write~init~int(0, 23, 3, 1);call #Ultimate.allocInit(7, 24);call write~init~int(44, 24, 0, 1);call write~init~int(80, 24, 1, 1);call write~init~int(117, 24, 2, 1);call write~init~int(109, 24, 3, 1);call write~init~int(112, 24, 4, 1);call write~init~int(58, 24, 5, 1);call write~init~int(0, 24, 6, 1);call #Ultimate.allocInit(3, 25);call write~init~int(79, 25, 0, 1);call write~init~int(110, 25, 1, 1);call write~init~int(0, 25, 2, 1);call #Ultimate.allocInit(4, 26);call write~init~int(79, 26, 0, 1);call write~init~int(102, 26, 1, 1);call write~init~int(102, 26, 2, 1);call write~init~int(0, 26, 3, 1);call #Ultimate.allocInit(3, 27);call write~init~int(41, 27, 0, 1);call write~init~int(32, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(10, 28, 0, 1);call write~init~int(0, 28, 1, 1);~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1; 542#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; 475#L908 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 476#L901 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~11#1;havoc valid_product_~retValue_acc~11#1;valid_product_~retValue_acc~11#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~11#1; 557#L916 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; 558#L140 assume 0 != main_~tmp~0#1;assume { :begin_inline_setup } true; 551#L113 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet33#1, test_#t~nondet34#1, test_#t~nondet35#1, test_#t~nondet36#1, test_~splverifierCounter~0#1, test_~tmp~4#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~4#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 509#L639-2 [2021-12-15 17:17:44,509 INFO L793 eck$LassoCheckResult]: Loop: 509#L639-2 assume !false; 517#L640 assume test_~splverifierCounter~0#1 < 4; 530#L641 test_~tmp~4#1 := test_#t~nondet33#1;havoc test_#t~nondet33#1; 546#L649 assume !(0 != test_~tmp~4#1); 566#L649-2 test_~tmp___0~0#1 := test_#t~nondet34#1;havoc test_#t~nondet34#1; 518#L659 assume !(0 != test_~tmp___0~0#1); 504#L659-2 test_~tmp___2~0#1 := test_#t~nondet35#1;havoc test_#t~nondet35#1; 548#L669 assume !(0 != test_~tmp___2~0#1);test_~tmp___1~0#1 := test_#t~nondet36#1;havoc test_#t~nondet36#1; 481#L677 assume 0 != test_~tmp___1~0#1; 482#L677-2 assume { :begin_inline_timeShift } true; 483#L707 assume !(0 != ~pumpRunning~0); 484#L707-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret37#1, processEnvironment_~tmp~5#1;havoc processEnvironment_~tmp~5#1; 463#L739 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret47#1, isHighWaterLevel_~retValue_acc~9#1, isHighWaterLevel_~tmp~6#1, isHighWaterLevel_~tmp___0~1#1;havoc isHighWaterLevel_~retValue_acc~9#1;havoc isHighWaterLevel_~tmp~6#1;havoc isHighWaterLevel_~tmp___0~1#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~6#1;havoc isHighWaterSensorDry_~retValue_acc~6#1; 464#L617 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~6#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~6#1; 519#L622 isHighWaterLevel_#t~ret47#1 := isHighWaterSensorDry_#res#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~6#1 := isHighWaterLevel_#t~ret47#1;havoc isHighWaterLevel_#t~ret47#1; 490#L841 assume 0 != isHighWaterLevel_~tmp~6#1;isHighWaterLevel_~tmp___0~1#1 := 0; 491#L841-2 isHighWaterLevel_~retValue_acc~9#1 := isHighWaterLevel_~tmp___0~1#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~9#1; 540#L847 processEnvironment_#t~ret37#1 := isHighWaterLevel_#res#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment_~tmp~5#1 := processEnvironment_#t~ret37#1;havoc processEnvironment_#t~ret37#1; 541#L743 assume !(0 != processEnvironment_~tmp~5#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 524#L731 assume { :end_inline_processEnvironment__wrappee__base } true; 525#L739-1 assume { :end_inline_processEnvironment } true; 512#L714-1 assume { :begin_inline___utac_acc__Specification1_spec__1 } true;havoc __utac_acc__Specification1_spec__1_#t~ret48#1, __utac_acc__Specification1_spec__1_#t~ret49#1, __utac_acc__Specification1_spec__1_~tmp~7#1, __utac_acc__Specification1_spec__1_~tmp___0~2#1;havoc __utac_acc__Specification1_spec__1_~tmp~7#1;havoc __utac_acc__Specification1_spec__1_~tmp___0~2#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~4#1;havoc isMethaneLevelCritical_~retValue_acc~4#1;isMethaneLevelCritical_~retValue_acc~4#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~4#1; 513#L577 __utac_acc__Specification1_spec__1_#t~ret48#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification1_spec__1_~tmp~7#1 := __utac_acc__Specification1_spec__1_#t~ret48#1;havoc __utac_acc__Specification1_spec__1_#t~ret48#1; 521#L868 assume !(0 != __utac_acc__Specification1_spec__1_~tmp~7#1); 503#L868-1 assume { :end_inline___utac_acc__Specification1_spec__1 } true; 505#L724 assume { :end_inline_timeShift } true; 509#L639-2 [2021-12-15 17:17:44,510 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 17:17:44,510 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 3 times [2021-12-15 17:17:44,510 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 17:17:44,511 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2076631556] [2021-12-15 17:17:44,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 17:17:44,511 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 17:17:44,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-15 17:17:44,533 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-15 17:17:44,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-15 17:17:44,544 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-15 17:17:44,544 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 17:17:44,544 INFO L85 PathProgramCache]: Analyzing trace with hash -1606746257, now seen corresponding path program 1 times [2021-12-15 17:17:44,545 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 17:17:44,545 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1693156602] [2021-12-15 17:17:44,545 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 17:17:44,545 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 17:17:44,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-15 17:17:44,551 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-15 17:17:44,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-15 17:17:44,565 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-15 17:17:44,566 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 17:17:44,566 INFO L85 PathProgramCache]: Analyzing trace with hash -1733187533, now seen corresponding path program 1 times [2021-12-15 17:17:44,566 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 17:17:44,567 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1515894565] [2021-12-15 17:17:44,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 17:17:44,567 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 17:17:44,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-15 17:17:44,578 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-15 17:17:44,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-15 17:17:44,596 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-15 17:17:44,812 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 17:17:44,815 INFO L158 Benchmark]: Toolchain (without parser) took 1750.01ms. Allocated memory was 83.9MB in the beginning and 121.6MB in the end (delta: 37.7MB). Free memory was 48.4MB in the beginning and 61.2MB in the end (delta: -12.8MB). Peak memory consumption was 25.8MB. Max. memory is 16.1GB. [2021-12-15 17:17:44,816 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 83.9MB. Free memory was 56.5MB in the beginning and 56.4MB in the end (delta: 30.4kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-15 17:17:44,816 INFO L158 Benchmark]: CACSL2BoogieTranslator took 352.06ms. Allocated memory was 83.9MB in the beginning and 100.7MB in the end (delta: 16.8MB). Free memory was 48.1MB in the beginning and 69.2MB in the end (delta: -21.0MB). Peak memory consumption was 5.5MB. Max. memory is 16.1GB. [2021-12-15 17:17:44,816 INFO L158 Benchmark]: Boogie Procedure Inliner took 47.57ms. Allocated memory is still 100.7MB. Free memory was 69.2MB in the beginning and 66.5MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-15 17:17:44,817 INFO L158 Benchmark]: Boogie Preprocessor took 36.29ms. Allocated memory is still 100.7MB. Free memory was 66.2MB in the beginning and 64.7MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-15 17:17:44,817 INFO L158 Benchmark]: RCFGBuilder took 382.85ms. Allocated memory is still 100.7MB. Free memory was 64.4MB in the beginning and 76.7MB in the end (delta: -12.3MB). Peak memory consumption was 21.1MB. Max. memory is 16.1GB. [2021-12-15 17:17:44,818 INFO L158 Benchmark]: BuchiAutomizer took 917.03ms. Allocated memory was 100.7MB in the beginning and 121.6MB in the end (delta: 21.0MB). Free memory was 76.7MB in the beginning and 61.2MB in the end (delta: 15.5MB). Peak memory consumption was 36.8MB. Max. memory is 16.1GB. [2021-12-15 17:17:44,820 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31ms. Allocated memory is still 83.9MB. Free memory was 56.5MB in the beginning and 56.4MB in the end (delta: 30.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 352.06ms. Allocated memory was 83.9MB in the beginning and 100.7MB in the end (delta: 16.8MB). Free memory was 48.1MB in the beginning and 69.2MB in the end (delta: -21.0MB). Peak memory consumption was 5.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 47.57ms. Allocated memory is still 100.7MB. Free memory was 69.2MB in the beginning and 66.5MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 36.29ms. Allocated memory is still 100.7MB. Free memory was 66.2MB in the beginning and 64.7MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 382.85ms. Allocated memory is still 100.7MB. Free memory was 64.4MB in the beginning and 76.7MB in the end (delta: -12.3MB). Peak memory consumption was 21.1MB. Max. memory is 16.1GB. * BuchiAutomizer took 917.03ms. Allocated memory was 100.7MB in the beginning and 121.6MB in the end (delta: 21.0MB). Free memory was 76.7MB in the beginning and 61.2MB in the end (delta: 15.5MB). Peak memory consumption was 36.8MB. 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 17:17:44,860 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