./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/elevator_spec13_product22.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/elevator_spec13_product22.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 f89a8ce65f650dd979d04d2db9dc53ba483e2a2b64be3f70ae15b036e4b11b5a --- Real Ultimate output --- This is Ultimate 0.2.2-3a877d227dc491413fd706022d0c47cd97beb353-3a877d2 [2021-12-15 17:11:41,320 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-15 17:11:41,322 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-15 17:11:41,376 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-15 17:11:41,376 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-15 17:11:41,379 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-15 17:11:41,380 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-15 17:11:41,381 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-15 17:11:41,383 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-15 17:11:41,386 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-15 17:11:41,387 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-15 17:11:41,388 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-15 17:11:41,388 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-15 17:11:41,390 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-15 17:11:41,391 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-15 17:11:41,395 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-15 17:11:41,395 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-15 17:11:41,396 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-15 17:11:41,412 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-15 17:11:41,413 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-15 17:11:41,414 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-15 17:11:41,415 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-15 17:11:41,416 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-15 17:11:41,416 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-15 17:11:41,418 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-15 17:11:41,418 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-15 17:11:41,418 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-15 17:11:41,419 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-15 17:11:41,419 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-15 17:11:41,419 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-15 17:11:41,420 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-15 17:11:41,420 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-15 17:11:41,421 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-15 17:11:41,421 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-15 17:11:41,422 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-15 17:11:41,422 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-15 17:11:41,423 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-15 17:11:41,423 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-15 17:11:41,423 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-15 17:11:41,423 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-15 17:11:41,424 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-15 17:11:41,425 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-12-15 17:11:41,442 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-15 17:11:41,442 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-15 17:11:41,443 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-15 17:11:41,443 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-15 17:11:41,444 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-15 17:11:41,444 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-15 17:11:41,444 INFO L138 SettingsManager]: * Use SBE=true [2021-12-15 17:11:41,444 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-12-15 17:11:41,444 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-12-15 17:11:41,444 INFO L138 SettingsManager]: * Use old map elimination=false [2021-12-15 17:11:41,445 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-12-15 17:11:41,445 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-12-15 17:11:41,445 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-12-15 17:11:41,445 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-15 17:11:41,446 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-15 17:11:41,446 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-12-15 17:11:41,446 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-15 17:11:41,446 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-15 17:11:41,446 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-15 17:11:41,446 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-12-15 17:11:41,446 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-12-15 17:11:41,447 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-12-15 17:11:41,447 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-15 17:11:41,447 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-15 17:11:41,448 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-12-15 17:11:41,448 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-15 17:11:41,448 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-12-15 17:11:41,448 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-15 17:11:41,448 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-15 17:11:41,449 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-15 17:11:41,449 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-15 17:11:41,449 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-15 17:11:41,449 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-12-15 17:11:41,450 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f89a8ce65f650dd979d04d2db9dc53ba483e2a2b64be3f70ae15b036e4b11b5a [2021-12-15 17:11:41,633 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-15 17:11:41,665 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-15 17:11:41,666 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-15 17:11:41,667 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-15 17:11:41,669 INFO L275 PluginConnector]: CDTParser initialized [2021-12-15 17:11:41,669 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/elevator_spec13_product22.cil.c [2021-12-15 17:11:41,727 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c1f06a9b0/267c7e52e8bd43c586a10813db58c2a5/FLAGf92012e56 [2021-12-15 17:11:42,215 INFO L306 CDTParser]: Found 1 translation units. [2021-12-15 17:11:42,216 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/elevator_spec13_product22.cil.c [2021-12-15 17:11:42,236 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c1f06a9b0/267c7e52e8bd43c586a10813db58c2a5/FLAGf92012e56 [2021-12-15 17:11:42,526 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c1f06a9b0/267c7e52e8bd43c586a10813db58c2a5 [2021-12-15 17:11:42,528 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-15 17:11:42,530 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-15 17:11:42,533 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-15 17:11:42,533 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-15 17:11:42,535 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-15 17:11:42,536 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 05:11:42" (1/1) ... [2021-12-15 17:11:42,537 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@48e77e52 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:11:42, skipping insertion in model container [2021-12-15 17:11:42,537 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 05:11:42" (1/1) ... [2021-12-15 17:11:42,543 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-15 17:11:42,594 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-15 17:11:42,764 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/elevator_spec13_product22.cil.c[1811,1824] [2021-12-15 17:11:43,022 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 17:11:43,031 INFO L203 MainTranslator]: Completed pre-run [2021-12-15 17:11:43,042 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/elevator_spec13_product22.cil.c[1811,1824] [2021-12-15 17:11:43,124 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 17:11:43,145 INFO L208 MainTranslator]: Completed translation [2021-12-15 17:11:43,145 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:11:43 WrapperNode [2021-12-15 17:11:43,146 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-15 17:11:43,146 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-15 17:11:43,147 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-15 17:11:43,147 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-15 17:11:43,151 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:11:43" (1/1) ... [2021-12-15 17:11:43,178 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:11:43" (1/1) ... [2021-12-15 17:11:43,778 INFO L137 Inliner]: procedures = 92, calls = 344, calls flagged for inlining = 196, calls inlined = 1755, statements flattened = 63923 [2021-12-15 17:11:43,778 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-15 17:11:43,779 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-15 17:11:43,779 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-15 17:11:43,779 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-15 17:11:43,785 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:11:43" (1/1) ... [2021-12-15 17:11:43,785 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:11:43" (1/1) ... [2021-12-15 17:11:43,925 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:11:43" (1/1) ... [2021-12-15 17:11:43,925 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:11:43" (1/1) ... [2021-12-15 17:11:44,345 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:11:43" (1/1) ... [2021-12-15 17:11:45,061 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:11:43" (1/1) ... [2021-12-15 17:11:45,195 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:11:43" (1/1) ... [2021-12-15 17:11:45,340 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-15 17:11:45,341 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-15 17:11:45,341 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-15 17:11:45,353 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-15 17:11:45,353 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:11:43" (1/1) ... [2021-12-15 17:11:45,358 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-15 17:11:45,365 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 17:11:45,377 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 17:11:45,401 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 17:11:45,427 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-15 17:11:45,427 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-15 17:11:45,427 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-15 17:11:45,428 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-15 17:11:45,633 INFO L236 CfgBuilder]: Building ICFG [2021-12-15 17:11:45,638 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-15 17:11:59,286 INFO L277 CfgBuilder]: Performing block encoding [2021-12-15 17:11:59,342 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-15 17:11:59,343 INFO L301 CfgBuilder]: Removed 61 assume(true) statements. [2021-12-15 17:11:59,354 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 05:11:59 BoogieIcfgContainer [2021-12-15 17:11:59,355 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-15 17:11:59,355 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-12-15 17:11:59,356 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-12-15 17:11:59,358 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-12-15 17:11:59,358 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-15 17:11:59,358 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 15.12 05:11:42" (1/3) ... [2021-12-15 17:11:59,359 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2dd2aa9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 15.12 05:11:59, skipping insertion in model container [2021-12-15 17:11:59,359 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-15 17:11:59,360 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:11:43" (2/3) ... [2021-12-15 17:11:59,360 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2dd2aa9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 15.12 05:11:59, skipping insertion in model container [2021-12-15 17:11:59,360 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-15 17:11:59,360 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 05:11:59" (3/3) ... [2021-12-15 17:11:59,361 INFO L388 chiAutomizerObserver]: Analyzing ICFG elevator_spec13_product22.cil.c [2021-12-15 17:11:59,386 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-12-15 17:11:59,386 INFO L360 BuchiCegarLoop]: Hoare is false [2021-12-15 17:11:59,386 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-12-15 17:11:59,386 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-12-15 17:11:59,387 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-12-15 17:11:59,387 INFO L364 BuchiCegarLoop]: Difference is false [2021-12-15 17:11:59,387 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-12-15 17:11:59,387 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-12-15 17:11:59,677 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 17392 states, 17391 states have (on average 1.8840204703582313) internal successors, (32765), 17391 states have internal predecessors, (32765), 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 17:11:59,869 INFO L131 ngComponentsAnalysis]: Automaton has 33 accepting balls. 3964 [2021-12-15 17:11:59,870 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-15 17:11:59,870 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-15 17:11:59,887 INFO L842 BuchiCegarLoop]: Counterexample stem 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, 1, 1, 1, 1, 1, 1] [2021-12-15 17:11:59,887 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 17:11:59,887 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-12-15 17:11:59,938 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 17392 states, 17391 states have (on average 1.8840204703582313) internal successors, (32765), 17391 states have internal predecessors, (32765), 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 17:12:00,151 INFO L131 ngComponentsAnalysis]: Automaton has 33 accepting balls. 3964 [2021-12-15 17:12:00,152 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-15 17:12:00,152 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-15 17:12:00,154 INFO L842 BuchiCegarLoop]: Counterexample stem 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, 1, 1, 1, 1, 1, 1] [2021-12-15 17:12:00,154 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 17:12:00,159 INFO L791 eck$LassoCheckResult]: Stem: 6961#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(32, 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(10, 16);call #Ultimate.allocInit(4, 17);call write~init~int(91, 17, 0, 1);call write~init~int(95, 17, 1, 1);call write~init~int(93, 17, 2, 1);call write~init~int(0, 17, 3, 1);call #Ultimate.allocInit(4, 18);call write~init~int(91, 18, 0, 1);call write~init~int(93, 18, 1, 1);call write~init~int(32, 18, 2, 1);call write~init~int(0, 18, 3, 1);call #Ultimate.allocInit(5, 19);call write~init~int(32, 19, 0, 1);call write~init~int(97, 19, 1, 1);call write~init~int(116, 19, 2, 1);call write~init~int(32, 19, 3, 1);call write~init~int(0, 19, 4, 1);call #Ultimate.allocInit(3, 20);call write~init~int(37, 20, 0, 1);call write~init~int(105, 20, 1, 1);call write~init~int(0, 20, 2, 1);call #Ultimate.allocInit(10, 21);call #Ultimate.allocInit(3, 22);call write~init~int(117, 22, 0, 1);call write~init~int(112, 22, 1, 1);call write~init~int(0, 22, 2, 1);call #Ultimate.allocInit(5, 23);call write~init~int(100, 23, 0, 1);call write~init~int(111, 23, 1, 1);call write~init~int(119, 23, 2, 1);call write~init~int(110, 23, 3, 1);call write~init~int(0, 23, 4, 1);call #Ultimate.allocInit(7, 24);call write~init~int(32, 24, 0, 1);call write~init~int(73, 24, 1, 1);call write~init~int(76, 24, 2, 1);call write~init~int(95, 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(4, 25);call write~init~int(32, 25, 0, 1);call write~init~int(37, 25, 1, 1);call write~init~int(105, 25, 2, 1);call write~init~int(0, 25, 3, 1);call #Ultimate.allocInit(4, 26);call write~init~int(32, 26, 0, 1);call write~init~int(37, 26, 1, 1);call write~init~int(105, 26, 2, 1);call write~init~int(0, 26, 3, 1);call #Ultimate.allocInit(4, 27);call write~init~int(32, 27, 0, 1);call write~init~int(37, 27, 1, 1);call write~init~int(105, 27, 2, 1);call write~init~int(0, 27, 3, 1);call #Ultimate.allocInit(4, 28);call write~init~int(32, 28, 0, 1);call write~init~int(37, 28, 1, 1);call write~init~int(105, 28, 2, 1);call write~init~int(0, 28, 3, 1);call #Ultimate.allocInit(4, 29);call write~init~int(32, 29, 0, 1);call write~init~int(37, 29, 1, 1);call write~init~int(105, 29, 2, 1);call write~init~int(0, 29, 3, 1);call #Ultimate.allocInit(6, 30);call write~init~int(32, 30, 0, 1);call write~init~int(70, 30, 1, 1);call write~init~int(95, 30, 2, 1);call write~init~int(112, 30, 3, 1);call write~init~int(58, 30, 4, 1);call write~init~int(0, 30, 5, 1);call #Ultimate.allocInit(4, 31);call write~init~int(32, 31, 0, 1);call write~init~int(37, 31, 1, 1);call write~init~int(105, 31, 2, 1);call write~init~int(0, 31, 3, 1);call #Ultimate.allocInit(4, 32);call write~init~int(32, 32, 0, 1);call write~init~int(37, 32, 1, 1);call write~init~int(105, 32, 2, 1);call write~init~int(0, 32, 3, 1);call #Ultimate.allocInit(4, 33);call write~init~int(32, 33, 0, 1);call write~init~int(37, 33, 1, 1);call write~init~int(105, 33, 2, 1);call write~init~int(0, 33, 3, 1);call #Ultimate.allocInit(4, 34);call write~init~int(32, 34, 0, 1);call write~init~int(37, 34, 1, 1);call write~init~int(105, 34, 2, 1);call write~init~int(0, 34, 3, 1);call #Ultimate.allocInit(4, 35);call write~init~int(32, 35, 0, 1);call write~init~int(37, 35, 1, 1);call write~init~int(105, 35, 2, 1);call write~init~int(0, 35, 3, 1);call #Ultimate.allocInit(2, 36);call write~init~int(10, 36, 0, 1);call write~init~int(0, 36, 1, 1);call #Ultimate.allocInit(9, 37);~head~0.base, ~head~0.offset := 0, 0;~weight~0 := 0;~maximumWeight~0 := 100;~blocked~0 := 0;~currentHeading~0 := 1;~currentFloorID~0 := 0;~persons_0~0 := 0;~persons_1~0 := 0;~persons_2~0 := 0;~persons_3~0 := 0;~persons_4~0 := 0;~persons_5~0 := 0;~doorState~0 := 1;~floorButtons_0~0 := 0;~floorButtons_1~0 := 0;~floorButtons_2~0 := 0;~floorButtons_3~0 := 0;~floorButtons_4~0 := 0;~calls_0~0 := 0;~calls_1~0 := 0;~calls_2~0 := 0;~calls_3~0 := 0;~calls_4~0 := 0;~personOnFloor_0_0~0 := 0;~personOnFloor_0_1~0 := 0;~personOnFloor_0_2~0 := 0;~personOnFloor_0_3~0 := 0;~personOnFloor_0_4~0 := 0;~personOnFloor_1_0~0 := 0;~personOnFloor_1_1~0 := 0;~personOnFloor_1_2~0 := 0;~personOnFloor_1_3~0 := 0;~personOnFloor_1_4~0 := 0;~personOnFloor_2_0~0 := 0;~personOnFloor_2_1~0 := 0;~personOnFloor_2_2~0 := 0;~personOnFloor_2_3~0 := 0;~personOnFloor_2_4~0 := 0;~personOnFloor_3_0~0 := 0;~personOnFloor_3_1~0 := 0;~personOnFloor_3_2~0 := 0;~personOnFloor_3_3~0 := 0;~personOnFloor_3_4~0 := 0;~personOnFloor_4_0~0 := 0;~personOnFloor_4_1~0 := 0;~personOnFloor_4_2~0 := 0;~personOnFloor_4_3~0 := 0;~personOnFloor_4_4~0 := 0;~personOnFloor_5_0~0 := 0;~personOnFloor_5_1~0 := 0;~personOnFloor_5_2~0 := 0;~personOnFloor_5_3~0 := 0;~personOnFloor_5_4~0 := 0;~cleanupTimeShifts~0 := 12;~prevDir~0 := 0; 4192#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret128#1, main_~retValue_acc~27#1, main_~tmp~27#1;havoc main_~retValue_acc~27#1;havoc main_~tmp~27#1;assume { :begin_inline_select_helpers } true; 7614#L2919true assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 2779#L2912true assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~25#1;havoc valid_product_~retValue_acc~25#1;valid_product_~retValue_acc~25#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~25#1; 15759#L2927true main_#t~ret128#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~27#1 := main_#t~ret128#1;havoc main_#t~ret128#1; 16069#L3266true assume 0 != main_~tmp~27#1;assume { :begin_inline_setup } true; 10705#L3243true assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;assume { :begin_inline_aliceCall } true;havoc aliceCall_#t~ret117#1, aliceCall_~tmp~20#1;havoc aliceCall_~tmp~20#1;assume { :begin_inline_getOrigin } true;getOrigin_#in~person#1 := 1;havoc getOrigin_#res#1;havoc getOrigin_~person#1, getOrigin_~retValue_acc~22#1;getOrigin_~person#1 := getOrigin_#in~person#1;havoc getOrigin_~retValue_acc~22#1; 396#L2819true assume 0 == getOrigin_~person#1;getOrigin_~retValue_acc~22#1 := 4;getOrigin_#res#1 := getOrigin_~retValue_acc~22#1; 3647#L2844true aliceCall_#t~ret117#1 := getOrigin_#res#1;assume { :end_inline_getOrigin } true;aliceCall_~tmp~20#1 := aliceCall_#t~ret117#1;havoc aliceCall_#t~ret117#1;assume { :begin_inline_initPersonOnFloor } true;initPersonOnFloor_#in~person#1, initPersonOnFloor_#in~floor#1 := 1, aliceCall_~tmp~20#1;havoc initPersonOnFloor_~person#1, initPersonOnFloor_~floor#1;initPersonOnFloor_~person#1 := initPersonOnFloor_#in~person#1;initPersonOnFloor_~floor#1 := initPersonOnFloor_#in~floor#1; 3860#L2375true assume 0 == initPersonOnFloor_~floor#1; 15875#L2376true assume 0 == initPersonOnFloor_~person#1;~personOnFloor_0_0~0 := 1; 13652#L2483-1true assume { :begin_inline_callOnFloor } true;callOnFloor_#in~floorID#1 := initPersonOnFloor_~floor#1;havoc callOnFloor_~floorID#1;callOnFloor_~floorID#1 := callOnFloor_#in~floorID#1; 7124#L2167true assume 0 == callOnFloor_~floorID#1;~calls_0~0 := 1; 11146#L2179-2true assume { :end_inline_callOnFloor } true; 15246#L2519true assume { :end_inline_initPersonOnFloor } true; 12449#L3004true assume { :end_inline_aliceCall } true;assume { :begin_inline_angelinaCall } true;havoc angelinaCall_#t~ret118#1, angelinaCall_~tmp~21#1;havoc angelinaCall_~tmp~21#1;assume { :begin_inline_getOrigin } true;getOrigin_#in~person#1 := 2;havoc getOrigin_#res#1;havoc getOrigin_~person#1, getOrigin_~retValue_acc~22#1;getOrigin_~person#1 := getOrigin_#in~person#1;havoc getOrigin_~retValue_acc~22#1; 2567#L2819-1true assume 0 == getOrigin_~person#1;getOrigin_~retValue_acc~22#1 := 4;getOrigin_#res#1 := getOrigin_~retValue_acc~22#1; 9670#L2844-1true angelinaCall_#t~ret118#1 := getOrigin_#res#1;assume { :end_inline_getOrigin } true;angelinaCall_~tmp~21#1 := angelinaCall_#t~ret118#1;havoc angelinaCall_#t~ret118#1;assume { :begin_inline_initPersonOnFloor } true;initPersonOnFloor_#in~person#1, initPersonOnFloor_#in~floor#1 := 2, angelinaCall_~tmp~21#1;havoc initPersonOnFloor_~person#1, initPersonOnFloor_~floor#1;initPersonOnFloor_~person#1 := initPersonOnFloor_#in~person#1;initPersonOnFloor_~floor#1 := initPersonOnFloor_#in~floor#1; 7081#L2375-1true assume 0 == initPersonOnFloor_~floor#1; 9991#L2376-2true assume 0 == initPersonOnFloor_~person#1;~personOnFloor_0_0~0 := 1; 12662#L2483-3true assume { :begin_inline_callOnFloor } true;callOnFloor_#in~floorID#1 := initPersonOnFloor_~floor#1;havoc callOnFloor_~floorID#1;callOnFloor_~floorID#1 := callOnFloor_#in~floorID#1; 16573#L2167-2true assume 0 == callOnFloor_~floorID#1;~calls_0~0 := 1; 4274#L2179-5true assume { :end_inline_callOnFloor } true; 10275#L2519-1true assume { :end_inline_initPersonOnFloor } true; 14226#L3015true assume { :end_inline_angelinaCall } true;assume { :begin_inline_threeTS } true;assume { :begin_inline_timeShift } true;havoc timeShift_#t~ret79#1, timeShift_~tmp~14#1;havoc timeShift_~tmp~14#1;assume { :begin_inline___utac_acc__Specification13_spec__1 } true;havoc __utac_acc__Specification13_spec__1_#t~ret129#1;assume { :begin_inline_getCurrentHeading } true;havoc getCurrentHeading_#res#1;havoc getCurrentHeading_~retValue_acc~7#1;havoc getCurrentHeading_~retValue_acc~7#1;getCurrentHeading_~retValue_acc~7#1 := ~currentHeading~0;getCurrentHeading_#res#1 := getCurrentHeading_~retValue_acc~7#1; 4068#L738true __utac_acc__Specification13_spec__1_#t~ret129#1 := getCurrentHeading_#res#1;assume { :end_inline_getCurrentHeading } true;~prevDir~0 := __utac_acc__Specification13_spec__1_#t~ret129#1;havoc __utac_acc__Specification13_spec__1_#t~ret129#1; 2151#L3288true assume { :end_inline___utac_acc__Specification13_spec__1 } true;assume { :begin_inline_areDoorsOpen } true;havoc areDoorsOpen_#res#1;havoc areDoorsOpen_~retValue_acc~5#1;havoc areDoorsOpen_~retValue_acc~5#1;areDoorsOpen_~retValue_acc~5#1 := ~doorState~0;areDoorsOpen_#res#1 := areDoorsOpen_~retValue_acc~5#1; 16154#L695true timeShift_#t~ret79#1 := areDoorsOpen_#res#1;assume { :end_inline_areDoorsOpen } true;timeShift_~tmp~14#1 := timeShift_#t~ret79#1;havoc timeShift_#t~ret79#1; 9425#L1647true assume 0 != timeShift_~tmp~14#1; 13589#L1648true assume ~weight~0 > ~maximumWeight~0;~blocked~0 := 1; 16853#L1647-1true assume { :begin_inline___utac_acc__Specification13_spec__2 } true;havoc __utac_acc__Specification13_spec__2_#t~ret130#1, __utac_acc__Specification13_spec__2_#t~ret131#1, __utac_acc__Specification13_spec__2_#t~ret132#1, __utac_acc__Specification13_spec__2_#t~ret133#1, __utac_acc__Specification13_spec__2_#t~ret134#1, __utac_acc__Specification13_spec__2_#t~ret135#1, __utac_acc__Specification13_spec__2_~tmp~28#1, __utac_acc__Specification13_spec__2_~tmp___0~11#1, __utac_acc__Specification13_spec__2_~tmp___1~8#1, __utac_acc__Specification13_spec__2_~tmp___2~6#1, __utac_acc__Specification13_spec__2_~tmp___3~5#1, __utac_acc__Specification13_spec__2_~tmp___4~3#1, __utac_acc__Specification13_spec__2_~__cil_tmp7~6#1, __utac_acc__Specification13_spec__2_~__cil_tmp8~7#1;havoc __utac_acc__Specification13_spec__2_~tmp~28#1;havoc __utac_acc__Specification13_spec__2_~tmp___0~11#1;havoc __utac_acc__Specification13_spec__2_~tmp___1~8#1;havoc __utac_acc__Specification13_spec__2_~tmp___2~6#1;havoc __utac_acc__Specification13_spec__2_~tmp___3~5#1;havoc __utac_acc__Specification13_spec__2_~tmp___4~3#1;havoc __utac_acc__Specification13_spec__2_~__cil_tmp7~6#1;havoc __utac_acc__Specification13_spec__2_~__cil_tmp8~7#1;__utac_acc__Specification13_spec__2_~__cil_tmp7~6#1 := 2 * ~maximumWeight~0;__utac_acc__Specification13_spec__2_~__cil_tmp8~7#1 := (if __utac_acc__Specification13_spec__2_~__cil_tmp7~6#1 < 0 && 0 != __utac_acc__Specification13_spec__2_~__cil_tmp7~6#1 % 3 then 1 + __utac_acc__Specification13_spec__2_~__cil_tmp7~6#1 / 3 else __utac_acc__Specification13_spec__2_~__cil_tmp7~6#1 / 3); 13015#L3305true assume ~weight~0 > __utac_acc__Specification13_spec__2_~__cil_tmp8~7#1; 10147#L3306true assume 1 == ~prevDir~0;assume { :begin_inline_existInLiftCallsInDirection } true;existInLiftCallsInDirection_#in~d#1 := 0;havoc existInLiftCallsInDirection_#res#1;havoc existInLiftCallsInDirection_~d#1, existInLiftCallsInDirection_~retValue_acc~17#1, existInLiftCallsInDirection_~i~0#1, existInLiftCallsInDirection_~i___0~0#1;existInLiftCallsInDirection_~d#1 := existInLiftCallsInDirection_#in~d#1;havoc existInLiftCallsInDirection_~retValue_acc~17#1;havoc existInLiftCallsInDirection_~i~0#1;havoc existInLiftCallsInDirection_~i___0~0#1; 2433#L1867true assume 1 == existInLiftCallsInDirection_~d#1;existInLiftCallsInDirection_~i~0#1 := 0;existInLiftCallsInDirection_~i~0#1 := 1 + ~currentFloorID~0; 7324#L1871-2true [2021-12-15 17:12:00,159 INFO L793 eck$LassoCheckResult]: Loop: 7324#L1871-2true assume !false; 68#L1872true assume existInLiftCallsInDirection_~i~0#1 < 5; 2752#L1873true assume !(0 == existInLiftCallsInDirection_~i~0#1); 8198#L1886true assume !(1 == existInLiftCallsInDirection_~i~0#1); 9312#L1895true assume !(2 == existInLiftCallsInDirection_~i~0#1); 13390#L1904true assume !(3 == existInLiftCallsInDirection_~i~0#1); 10511#L1913true assume !(4 == existInLiftCallsInDirection_~i~0#1); 16552#L1914-1true existInLiftCallsInDirection_~i~0#1 := 1 + existInLiftCallsInDirection_~i~0#1; 7324#L1871-2true [2021-12-15 17:12:00,167 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 17:12:00,167 INFO L85 PathProgramCache]: Analyzing trace with hash -1544398965, now seen corresponding path program 1 times [2021-12-15 17:12:00,175 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 17:12:00,176 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [54518305] [2021-12-15 17:12:00,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 17:12:00,177 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 17:12:00,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 17:12:00,390 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 17:12:00,390 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 17:12:00,390 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [54518305] [2021-12-15 17:12:00,391 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [54518305] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 17:12:00,391 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 17:12:00,391 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-15 17:12:00,393 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1748510086] [2021-12-15 17:12:00,393 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 17:12:00,396 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-12-15 17:12:00,397 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 17:12:00,397 INFO L85 PathProgramCache]: Analyzing trace with hash 1775462013, now seen corresponding path program 1 times [2021-12-15 17:12:00,397 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 17:12:00,397 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2044853873] [2021-12-15 17:12:00,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 17:12:00,398 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 17:12:00,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-15 17:12:00,403 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-15 17:12:00,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-15 17:12:00,417 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-15 17:12:00,479 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:818) 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 17:12:00,483 INFO L158 Benchmark]: Toolchain (without parser) took 17952.14ms. Allocated memory was 107.0MB in the beginning and 3.9GB in the end (delta: 3.8GB). Free memory was 70.2MB in the beginning and 3.3GB in the end (delta: -3.3GB). Peak memory consumption was 486.5MB. Max. memory is 16.1GB. [2021-12-15 17:12:00,484 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 107.0MB. Free memory was 80.8MB in the beginning and 80.7MB in the end (delta: 25.7kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-15 17:12:00,484 INFO L158 Benchmark]: CACSL2BoogieTranslator took 613.08ms. Allocated memory is still 107.0MB. Free memory was 70.0MB in the beginning and 55.6MB in the end (delta: 14.5MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2021-12-15 17:12:00,488 INFO L158 Benchmark]: Boogie Procedure Inliner took 631.78ms. Allocated memory was 107.0MB in the beginning and 260.0MB in the end (delta: 153.1MB). Free memory was 55.6MB in the beginning and 157.6MB in the end (delta: -102.1MB). Peak memory consumption was 97.1MB. Max. memory is 16.1GB. [2021-12-15 17:12:00,489 INFO L158 Benchmark]: Boogie Preprocessor took 1561.76ms. Allocated memory was 260.0MB in the beginning and 704.6MB in the end (delta: 444.6MB). Free memory was 157.6MB in the beginning and 515.2MB in the end (delta: -357.5MB). Peak memory consumption was 124.8MB. Max. memory is 16.1GB. [2021-12-15 17:12:00,490 INFO L158 Benchmark]: RCFGBuilder took 14013.53ms. Allocated memory was 704.6MB in the beginning and 2.1GB in the end (delta: 1.4GB). Free memory was 515.2MB in the beginning and 1.4GB in the end (delta: -859.7MB). Peak memory consumption was 501.4MB. Max. memory is 16.1GB. [2021-12-15 17:12:00,490 INFO L158 Benchmark]: BuchiAutomizer took 1126.16ms. Allocated memory was 2.1GB in the beginning and 3.9GB in the end (delta: 1.8GB). Free memory was 1.4GB in the beginning and 3.3GB in the end (delta: -2.0GB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-15 17:12:00,495 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 107.0MB. Free memory was 80.8MB in the beginning and 80.7MB in the end (delta: 25.7kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 613.08ms. Allocated memory is still 107.0MB. Free memory was 70.0MB in the beginning and 55.6MB in the end (delta: 14.5MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 631.78ms. Allocated memory was 107.0MB in the beginning and 260.0MB in the end (delta: 153.1MB). Free memory was 55.6MB in the beginning and 157.6MB in the end (delta: -102.1MB). Peak memory consumption was 97.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 1561.76ms. Allocated memory was 260.0MB in the beginning and 704.6MB in the end (delta: 444.6MB). Free memory was 157.6MB in the beginning and 515.2MB in the end (delta: -357.5MB). Peak memory consumption was 124.8MB. Max. memory is 16.1GB. * RCFGBuilder took 14013.53ms. Allocated memory was 704.6MB in the beginning and 2.1GB in the end (delta: 1.4GB). Free memory was 515.2MB in the beginning and 1.4GB in the end (delta: -859.7MB). Peak memory consumption was 501.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 1126.16ms. Allocated memory was 2.1GB in the beginning and 3.9GB in the end (delta: 1.8GB). Free memory was 1.4GB in the beginning and 3.3GB in the end (delta: -2.0GB). There was no memory consumed. 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 17:12:00,579 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