./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/termination-memory-alloca/BrockschmidtCookFuhs-2013CAV-Fig1-alloca.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version ff03de63 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/termination-memory-alloca/BrockschmidtCookFuhs-2013CAV-Fig1-alloca.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-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 64bit --witnessprinter.graph.data.programhash e0a1cec22a7e787a87b4a304bdc1225ca64aedbe71e13dd8a6657fba2c77bbf7 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-ff03de6 [2021-12-21 22:01:52,202 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-21 22:01:52,203 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-21 22:01:52,249 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-21 22:01:52,250 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-21 22:01:52,251 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-21 22:01:52,251 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-21 22:01:52,252 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-21 22:01:52,253 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-21 22:01:52,254 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-21 22:01:52,254 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-21 22:01:52,255 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-21 22:01:52,255 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-21 22:01:52,256 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-21 22:01:52,257 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-21 22:01:52,257 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-21 22:01:52,258 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-21 22:01:52,262 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-21 22:01:52,263 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-21 22:01:52,267 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-21 22:01:52,268 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-21 22:01:52,273 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-21 22:01:52,273 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-21 22:01:52,274 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-21 22:01:52,275 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-21 22:01:52,276 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-21 22:01:52,276 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-21 22:01:52,276 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-21 22:01:52,277 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-21 22:01:52,277 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-21 22:01:52,277 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-21 22:01:52,278 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-21 22:01:52,278 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-21 22:01:52,279 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-21 22:01:52,279 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-21 22:01:52,279 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-21 22:01:52,280 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-21 22:01:52,280 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-21 22:01:52,280 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-21 22:01:52,281 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-21 22:01:52,281 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-21 22:01:52,282 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2021-12-21 22:01:52,295 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-21 22:01:52,297 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-21 22:01:52,298 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-21 22:01:52,298 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-21 22:01:52,299 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-21 22:01:52,299 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-21 22:01:52,300 INFO L138 SettingsManager]: * Use SBE=true [2021-12-21 22:01:52,300 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-12-21 22:01:52,300 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-12-21 22:01:52,300 INFO L138 SettingsManager]: * Use old map elimination=false [2021-12-21 22:01:52,301 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-12-21 22:01:52,301 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-12-21 22:01:52,301 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-12-21 22:01:52,301 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-21 22:01:52,301 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-12-21 22:01:52,302 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-21 22:01:52,302 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-21 22:01:52,302 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-12-21 22:01:52,302 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-12-21 22:01:52,302 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-12-21 22:01:52,302 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-21 22:01:52,302 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-12-21 22:01:52,303 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-21 22:01:52,303 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-12-21 22:01:52,303 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-21 22:01:52,304 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-21 22:01:52,304 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-21 22:01:52,304 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-21 22:01:52,304 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-21 22:01:52,305 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-12-21 22:01:52,305 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e0a1cec22a7e787a87b4a304bdc1225ca64aedbe71e13dd8a6657fba2c77bbf7 [2021-12-21 22:01:52,460 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-21 22:01:52,476 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-21 22:01:52,480 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-21 22:01:52,481 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-21 22:01:52,481 INFO L275 PluginConnector]: CDTParser initialized [2021-12-21 22:01:52,482 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-memory-alloca/BrockschmidtCookFuhs-2013CAV-Fig1-alloca.i [2021-12-21 22:01:52,520 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3143c43f6/a3d0c1629f514f25ae61f01f872a198c/FLAGde9424400 [2021-12-21 22:01:52,896 INFO L306 CDTParser]: Found 1 translation units. [2021-12-21 22:01:52,896 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-memory-alloca/BrockschmidtCookFuhs-2013CAV-Fig1-alloca.i [2021-12-21 22:01:52,908 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3143c43f6/a3d0c1629f514f25ae61f01f872a198c/FLAGde9424400 [2021-12-21 22:01:52,925 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3143c43f6/a3d0c1629f514f25ae61f01f872a198c [2021-12-21 22:01:52,927 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-21 22:01:52,929 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-21 22:01:52,931 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-21 22:01:52,931 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-21 22:01:52,933 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-21 22:01:52,934 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 10:01:52" (1/1) ... [2021-12-21 22:01:52,934 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@c1188e0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:01:52, skipping insertion in model container [2021-12-21 22:01:52,935 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 10:01:52" (1/1) ... [2021-12-21 22:01:52,939 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-21 22:01:52,970 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-21 22:01:53,150 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-21 22:01:53,156 INFO L203 MainTranslator]: Completed pre-run [2021-12-21 22:01:53,188 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-21 22:01:53,202 INFO L208 MainTranslator]: Completed translation [2021-12-21 22:01:53,203 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:01:53 WrapperNode [2021-12-21 22:01:53,203 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-21 22:01:53,204 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-21 22:01:53,204 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-21 22:01:53,204 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-21 22:01:53,208 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:01:53" (1/1) ... [2021-12-21 22:01:53,215 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:01:53" (1/1) ... [2021-12-21 22:01:53,239 INFO L137 Inliner]: procedures = 109, calls = 20, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 52 [2021-12-21 22:01:53,240 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-21 22:01:53,240 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-21 22:01:53,240 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-21 22:01:53,240 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-21 22:01:53,245 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:01:53" (1/1) ... [2021-12-21 22:01:53,245 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:01:53" (1/1) ... [2021-12-21 22:01:53,260 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:01:53" (1/1) ... [2021-12-21 22:01:53,260 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:01:53" (1/1) ... [2021-12-21 22:01:53,262 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:01:53" (1/1) ... [2021-12-21 22:01:53,265 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:01:53" (1/1) ... [2021-12-21 22:01:53,265 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:01:53" (1/1) ... [2021-12-21 22:01:53,266 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-21 22:01:53,267 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-21 22:01:53,267 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-21 22:01:53,267 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-21 22:01:53,268 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:01:53" (1/1) ... [2021-12-21 22:01:53,273 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-21 22:01:53,282 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 22:01:53,296 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) [2021-12-21 22:01:53,313 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 [2021-12-21 22:01:53,334 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-21 22:01:53,334 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-21 22:01:53,334 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-21 22:01:53,336 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-21 22:01:53,336 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-21 22:01:53,336 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-21 22:01:53,425 INFO L234 CfgBuilder]: Building ICFG [2021-12-21 22:01:53,426 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-21 22:01:53,505 INFO L275 CfgBuilder]: Performing block encoding [2021-12-21 22:01:53,509 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-21 22:01:53,509 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2021-12-21 22:01:53,510 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 10:01:53 BoogieIcfgContainer [2021-12-21 22:01:53,510 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-21 22:01:53,511 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-12-21 22:01:53,511 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-12-21 22:01:53,513 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-12-21 22:01:53,514 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-21 22:01:53,514 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 21.12 10:01:52" (1/3) ... [2021-12-21 22:01:53,515 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@508b9a66 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.12 10:01:53, skipping insertion in model container [2021-12-21 22:01:53,515 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-21 22:01:53,515 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:01:53" (2/3) ... [2021-12-21 22:01:53,515 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@508b9a66 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.12 10:01:53, skipping insertion in model container [2021-12-21 22:01:53,515 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-21 22:01:53,515 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 10:01:53" (3/3) ... [2021-12-21 22:01:53,516 INFO L388 chiAutomizerObserver]: Analyzing ICFG BrockschmidtCookFuhs-2013CAV-Fig1-alloca.i [2021-12-21 22:01:53,555 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-12-21 22:01:53,555 INFO L360 BuchiCegarLoop]: Hoare is false [2021-12-21 22:01:53,555 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-12-21 22:01:53,555 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-12-21 22:01:53,555 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-12-21 22:01:53,555 INFO L364 BuchiCegarLoop]: Difference is false [2021-12-21 22:01:53,555 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-12-21 22:01:53,555 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-12-21 22:01:53,564 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 11 states, 10 states have (on average 1.4) internal successors, (14), 10 states have internal predecessors, (14), 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) [2021-12-21 22:01:53,574 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2021-12-21 22:01:53,575 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-21 22:01:53,575 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-21 22:01:53,578 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-12-21 22:01:53,578 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2021-12-21 22:01:53,578 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-12-21 22:01:53,579 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 11 states, 10 states have (on average 1.4) internal successors, (14), 10 states have internal predecessors, (14), 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) [2021-12-21 22:01:53,579 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2021-12-21 22:01:53,580 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-21 22:01:53,580 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-21 22:01:53,580 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-12-21 22:01:53,580 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2021-12-21 22:01:53,585 INFO L791 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 10#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~malloc2#1.base, main_#t~malloc2#1.offset, main_#t~malloc3#1.base, main_#t~malloc3#1.offset, main_#t~malloc4#1.base, main_#t~malloc4#1.offset, main_#t~mem9#1, main_#t~mem7#1, main_#t~mem8#1, main_#t~mem10#1, main_#t~mem5#1, main_#t~mem6#1, main_~i~0#1.base, main_~i~0#1.offset, main_~j~0#1.base, main_~j~0#1.offset, main_~n~0#1.base, main_~n~0#1.offset;call main_#t~malloc2#1.base, main_#t~malloc2#1.offset := #Ultimate.allocOnStack(4);main_~i~0#1.base, main_~i~0#1.offset := main_#t~malloc2#1.base, main_#t~malloc2#1.offset;call main_#t~malloc3#1.base, main_#t~malloc3#1.offset := #Ultimate.allocOnStack(4);main_~j~0#1.base, main_~j~0#1.offset := main_#t~malloc3#1.base, main_#t~malloc3#1.offset;call main_#t~malloc4#1.base, main_#t~malloc4#1.offset := #Ultimate.allocOnStack(4);main_~n~0#1.base, main_~n~0#1.offset := main_#t~malloc4#1.base, main_#t~malloc4#1.offset; 9#L550-3true [2021-12-21 22:01:53,585 INFO L793 eck$LassoCheckResult]: Loop: 9#L550-3true call main_#t~mem5#1 := read~int(main_~i~0#1.base, main_~i~0#1.offset, 4);call main_#t~mem6#1 := read~int(main_~n~0#1.base, main_~n~0#1.offset, 4); 11#L550-1true assume !!(main_#t~mem5#1 < main_#t~mem6#1);havoc main_#t~mem5#1;havoc main_#t~mem6#1;call write~int(0, main_~j~0#1.base, main_~j~0#1.offset, 4); 5#L552-3true assume !true; 6#L552-4true call main_#t~mem10#1 := read~int(main_~i~0#1.base, main_~i~0#1.offset, 4);call write~int(1 + main_#t~mem10#1, main_~i~0#1.base, main_~i~0#1.offset, 4);havoc main_#t~mem10#1; 9#L550-3true [2021-12-21 22:01:53,588 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 22:01:53,589 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2021-12-21 22:01:53,598 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 22:01:53,599 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1261499818] [2021-12-21 22:01:53,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 22:01:53,600 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 22:01:53,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 22:01:53,697 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-21 22:01:53,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 22:01:53,736 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-21 22:01:53,744 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 22:01:53,744 INFO L85 PathProgramCache]: Analyzing trace with hash 1144360, now seen corresponding path program 1 times [2021-12-21 22:01:53,744 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 22:01:53,745 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1860200193] [2021-12-21 22:01:53,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 22:01:53,745 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 22:01:53,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 22:01:53,787 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-21 22:01:53,787 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 22:01:53,787 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1860200193] [2021-12-21 22:01:53,788 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1860200193] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 22:01:53,788 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 22:01:53,788 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-21 22:01:53,788 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2027800118] [2021-12-21 22:01:53,789 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 22:01:53,791 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-12-21 22:01:53,792 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 22:01:53,818 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-12-21 22:01:53,820 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-12-21 22:01:53,821 INFO L87 Difference]: Start difference. First operand has 11 states, 10 states have (on average 1.4) internal successors, (14), 10 states have internal predecessors, (14), 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 2 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 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) [2021-12-21 22:01:53,826 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 22:01:53,827 INFO L93 Difference]: Finished difference Result 11 states and 12 transitions. [2021-12-21 22:01:53,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-12-21 22:01:53,831 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 11 states and 12 transitions. [2021-12-21 22:01:53,833 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2021-12-21 22:01:53,835 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 11 states to 7 states and 8 transitions. [2021-12-21 22:01:53,836 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 7 [2021-12-21 22:01:53,836 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2021-12-21 22:01:53,836 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 8 transitions. [2021-12-21 22:01:53,837 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-21 22:01:53,837 INFO L681 BuchiCegarLoop]: Abstraction has 7 states and 8 transitions. [2021-12-21 22:01:53,848 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states and 8 transitions. [2021-12-21 22:01:53,853 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 7. [2021-12-21 22:01:53,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7 states, 7 states have (on average 1.1428571428571428) internal successors, (8), 6 states have internal predecessors, (8), 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) [2021-12-21 22:01:53,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 8 transitions. [2021-12-21 22:01:53,855 INFO L704 BuchiCegarLoop]: Abstraction has 7 states and 8 transitions. [2021-12-21 22:01:53,855 INFO L587 BuchiCegarLoop]: Abstraction has 7 states and 8 transitions. [2021-12-21 22:01:53,855 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-12-21 22:01:53,855 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states and 8 transitions. [2021-12-21 22:01:53,855 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2021-12-21 22:01:53,855 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-21 22:01:53,856 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-21 22:01:53,856 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-12-21 22:01:53,856 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2021-12-21 22:01:53,856 INFO L791 eck$LassoCheckResult]: Stem: 30#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 31#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~malloc2#1.base, main_#t~malloc2#1.offset, main_#t~malloc3#1.base, main_#t~malloc3#1.offset, main_#t~malloc4#1.base, main_#t~malloc4#1.offset, main_#t~mem9#1, main_#t~mem7#1, main_#t~mem8#1, main_#t~mem10#1, main_#t~mem5#1, main_#t~mem6#1, main_~i~0#1.base, main_~i~0#1.offset, main_~j~0#1.base, main_~j~0#1.offset, main_~n~0#1.base, main_~n~0#1.offset;call main_#t~malloc2#1.base, main_#t~malloc2#1.offset := #Ultimate.allocOnStack(4);main_~i~0#1.base, main_~i~0#1.offset := main_#t~malloc2#1.base, main_#t~malloc2#1.offset;call main_#t~malloc3#1.base, main_#t~malloc3#1.offset := #Ultimate.allocOnStack(4);main_~j~0#1.base, main_~j~0#1.offset := main_#t~malloc3#1.base, main_#t~malloc3#1.offset;call main_#t~malloc4#1.base, main_#t~malloc4#1.offset := #Ultimate.allocOnStack(4);main_~n~0#1.base, main_~n~0#1.offset := main_#t~malloc4#1.base, main_#t~malloc4#1.offset; 35#L550-3 [2021-12-21 22:01:53,856 INFO L793 eck$LassoCheckResult]: Loop: 35#L550-3 call main_#t~mem5#1 := read~int(main_~i~0#1.base, main_~i~0#1.offset, 4);call main_#t~mem6#1 := read~int(main_~n~0#1.base, main_~n~0#1.offset, 4); 36#L550-1 assume !!(main_#t~mem5#1 < main_#t~mem6#1);havoc main_#t~mem5#1;havoc main_#t~mem6#1;call write~int(0, main_~j~0#1.base, main_~j~0#1.offset, 4); 32#L552-3 call main_#t~mem7#1 := read~int(main_~j~0#1.base, main_~j~0#1.offset, 4);call main_#t~mem8#1 := read~int(main_~i~0#1.base, main_~i~0#1.offset, 4); 33#L552-1 assume !(main_#t~mem7#1 <= main_#t~mem8#1);havoc main_#t~mem7#1;havoc main_#t~mem8#1; 34#L552-4 call main_#t~mem10#1 := read~int(main_~i~0#1.base, main_~i~0#1.offset, 4);call write~int(1 + main_#t~mem10#1, main_~i~0#1.base, main_~i~0#1.offset, 4);havoc main_#t~mem10#1; 35#L550-3 [2021-12-21 22:01:53,857 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 22:01:53,857 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 2 times [2021-12-21 22:01:53,858 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 22:01:53,858 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [249270227] [2021-12-21 22:01:53,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 22:01:53,858 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 22:01:53,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 22:01:53,884 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-21 22:01:53,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 22:01:53,896 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-21 22:01:53,897 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 22:01:53,897 INFO L85 PathProgramCache]: Analyzing trace with hash 35468273, now seen corresponding path program 1 times [2021-12-21 22:01:53,897 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 22:01:53,897 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1943623557] [2021-12-21 22:01:53,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 22:01:53,898 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 22:01:53,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 22:01:53,918 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-21 22:01:53,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 22:01:53,939 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-21 22:01:53,939 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 22:01:53,940 INFO L85 PathProgramCache]: Analyzing trace with hash 1806907759, now seen corresponding path program 1 times [2021-12-21 22:01:53,940 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 22:01:53,940 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [256237148] [2021-12-21 22:01:53,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 22:01:53,940 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 22:01:53,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 22:01:53,985 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-21 22:01:53,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 22:01:53,999 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-21 22:01:54,397 INFO L210 LassoAnalysis]: Preferences: [2021-12-21 22:01:54,397 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-12-21 22:01:54,397 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-12-21 22:01:54,397 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-12-21 22:01:54,398 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-12-21 22:01:54,398 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-21 22:01:54,398 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-12-21 22:01:54,398 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-12-21 22:01:54,398 INFO L133 ssoRankerPreferences]: Filename of dumped script: BrockschmidtCookFuhs-2013CAV-Fig1-alloca.i_Iteration2_Lasso [2021-12-21 22:01:54,398 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-12-21 22:01:54,398 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-12-21 22:01:54,411 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-21 22:01:54,690 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer has thrown an exception: java.lang.IllegalArgumentException at de.uni_freiburg.informatik.ultimate.util.datastructures.ScopedHashMap.put(ScopedHashMap.java:331) at java.base/java.util.AbstractMap.putAll(AbstractMap.java:281) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.PureSubstitution.(PureSubstitution.java:81) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.Substitution.(Substitution.java:48) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.Substitution.apply(Substitution.java:59) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.mapelimination.MapEliminator.replaceMapReads(MapEliminator.java:518) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.mapelimination.MapEliminator.getRewrittenTransFormula(MapEliminator.java:342) at de.uni_freiburg.informatik.ultimate.lassoranker.preprocessors.MapEliminationLassoPreprocessor.process(MapEliminationLassoPreprocessor.java:111) at de.uni_freiburg.informatik.ultimate.lassoranker.variables.LassoBuilder.applyPreprocessor(LassoBuilder.java:154) at de.uni_freiburg.informatik.ultimate.lassoranker.variables.LassoBuilder.preprocess(LassoBuilder.java:262) at de.uni_freiburg.informatik.ultimate.lassoranker.LassoAnalysis.preprocess(LassoAnalysis.java:280) at de.uni_freiburg.informatik.ultimate.lassoranker.LassoAnalysis.(LassoAnalysis.java:229) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.LassoCheck.synthesize(LassoCheck.java:609) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.LassoCheck$LassoCheckResult.checkLassoTermination(LassoCheck.java:953) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.LassoCheck$LassoCheckResult.(LassoCheck.java:862) 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) [2021-12-21 22:01:54,696 INFO L158 Benchmark]: Toolchain (without parser) took 1765.87ms. Allocated memory was 102.8MB in the beginning and 138.4MB in the end (delta: 35.7MB). Free memory was 71.6MB in the beginning and 101.8MB in the end (delta: -30.2MB). Peak memory consumption was 39.7MB. Max. memory is 16.1GB. [2021-12-21 22:01:54,697 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 79.7MB. Free memory is still 45.2MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-21 22:01:54,697 INFO L158 Benchmark]: CACSL2BoogieTranslator took 272.61ms. Allocated memory is still 102.8MB. Free memory was 71.4MB in the beginning and 74.6MB in the end (delta: -3.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-12-21 22:01:54,699 INFO L158 Benchmark]: Boogie Procedure Inliner took 35.82ms. Allocated memory is still 102.8MB. Free memory was 74.6MB in the beginning and 73.1MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-21 22:01:54,699 INFO L158 Benchmark]: Boogie Preprocessor took 26.15ms. Allocated memory is still 102.8MB. Free memory was 72.6MB in the beginning and 71.6MB in the end (delta: 931.8kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-21 22:01:54,700 INFO L158 Benchmark]: RCFGBuilder took 243.44ms. Allocated memory is still 102.8MB. Free memory was 71.6MB in the beginning and 61.7MB in the end (delta: 9.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-12-21 22:01:54,703 INFO L158 Benchmark]: BuchiAutomizer took 1183.65ms. Allocated memory was 102.8MB in the beginning and 138.4MB in the end (delta: 35.7MB). Free memory was 61.1MB in the beginning and 101.8MB in the end (delta: -40.7MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. [2021-12-21 22:01:54,705 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 79.7MB. Free memory is still 45.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 272.61ms. Allocated memory is still 102.8MB. Free memory was 71.4MB in the beginning and 74.6MB in the end (delta: -3.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 35.82ms. Allocated memory is still 102.8MB. Free memory was 74.6MB in the beginning and 73.1MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 26.15ms. Allocated memory is still 102.8MB. Free memory was 72.6MB in the beginning and 71.6MB in the end (delta: 931.8kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 243.44ms. Allocated memory is still 102.8MB. Free memory was 71.6MB in the beginning and 61.7MB in the end (delta: 9.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 1183.65ms. Allocated memory was 102.8MB in the beginning and 138.4MB in the end (delta: 35.7MB). Free memory was 61.1MB in the beginning and 101.8MB in the end (delta: -40.7MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer: - ExceptionOrErrorResult: IllegalArgumentException: null de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer: IllegalArgumentException: null: de.uni_freiburg.informatik.ultimate.util.datastructures.ScopedHashMap.put(ScopedHashMap.java:331) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2021-12-21 22:01:54,732 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*64bit*_Bitvector*.epf No suitable settings file found using Termination*64bit*_Bitvector ERROR: UNSUPPORTED PROPERTY Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: IllegalArgumentException: null