./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/psyco/psyco_math_1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 20ed64ec 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/psyco/psyco_math_1.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 8b21ad1baeb92c3a8a2023c182a4742236703971 .................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM) --- Real Ultimate output --- This is Ultimate 0.2.1-dev-20ed64e [2021-08-27 15:14:23,347 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-27 15:14:23,350 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-27 15:14:23,382 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-08-27 15:14:23,383 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-08-27 15:14:23,385 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-08-27 15:14:23,386 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-08-27 15:14:23,390 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-08-27 15:14:23,394 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-08-27 15:14:23,398 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-08-27 15:14:23,398 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-08-27 15:14:23,400 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-08-27 15:14:23,400 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-27 15:14:23,402 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-27 15:14:23,403 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-27 15:14:23,405 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-27 15:14:23,406 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-27 15:14:23,407 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-27 15:14:23,417 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-27 15:14:23,422 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-27 15:14:23,423 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-27 15:14:23,423 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-27 15:14:23,425 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-27 15:14:23,425 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-27 15:14:23,430 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-08-27 15:14:23,430 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-08-27 15:14:23,430 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-08-27 15:14:23,431 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-08-27 15:14:23,432 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-08-27 15:14:23,432 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-08-27 15:14:23,432 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-08-27 15:14:23,433 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-08-27 15:14:23,434 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-08-27 15:14:23,434 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-08-27 15:14:23,435 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-08-27 15:14:23,435 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-08-27 15:14:23,436 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-08-27 15:14:23,436 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-08-27 15:14:23,436 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-27 15:14:23,437 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-27 15:14:23,437 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-27 15:14:23,440 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-08-27 15:14:23,468 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-27 15:14:23,469 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-27 15:14:23,469 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-27 15:14:23,470 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-27 15:14:23,471 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-27 15:14:23,471 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-27 15:14:23,471 INFO L138 SettingsManager]: * Use SBE=true [2021-08-27 15:14:23,471 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-08-27 15:14:23,472 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-08-27 15:14:23,472 INFO L138 SettingsManager]: * Use old map elimination=false [2021-08-27 15:14:23,472 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-08-27 15:14:23,472 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-08-27 15:14:23,472 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-08-27 15:14:23,473 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-27 15:14:23,480 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-27 15:14:23,481 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-08-27 15:14:23,481 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-27 15:14:23,481 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-27 15:14:23,481 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-27 15:14:23,481 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-08-27 15:14:23,481 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-08-27 15:14:23,481 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-08-27 15:14:23,482 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-27 15:14:23,482 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-27 15:14:23,482 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-08-27 15:14:23,482 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-27 15:14:23,482 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-08-27 15:14:23,482 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-27 15:14:23,482 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-27 15:14:23,483 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-27 15:14:23,483 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-08-27 15:14:23,483 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-08-27 15:14:23,484 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-08-27 15:14:23,484 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8b21ad1baeb92c3a8a2023c182a4742236703971 [2021-08-27 15:14:23,716 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-27 15:14:23,730 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-27 15:14:23,731 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-27 15:14:23,732 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-27 15:14:23,733 INFO L275 PluginConnector]: CDTParser initialized [2021-08-27 15:14:23,733 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/psyco/psyco_math_1.c [2021-08-27 15:14:23,805 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c48b107b2/b80d294b922f433db67d0ad17d3d64b0/FLAG955ec18b5 [2021-08-27 15:14:24,172 INFO L306 CDTParser]: Found 1 translation units. [2021-08-27 15:14:24,176 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/psyco/psyco_math_1.c [2021-08-27 15:14:24,186 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c48b107b2/b80d294b922f433db67d0ad17d3d64b0/FLAG955ec18b5 [2021-08-27 15:14:24,198 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c48b107b2/b80d294b922f433db67d0ad17d3d64b0 [2021-08-27 15:14:24,200 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-27 15:14:24,202 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-08-27 15:14:24,204 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-27 15:14:24,205 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-27 15:14:24,207 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-27 15:14:24,207 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 03:14:24" (1/1) ... [2021-08-27 15:14:24,208 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@659ae6f0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:14:24, skipping insertion in model container [2021-08-27 15:14:24,208 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 03:14:24" (1/1) ... [2021-08-27 15:14:24,213 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-27 15:14:24,240 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-27 15:14:24,393 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/psyco/psyco_math_1.c[11705,11718] [2021-08-27 15:14:24,394 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-27 15:14:24,413 INFO L203 MainTranslator]: Completed pre-run [2021-08-27 15:14:24,471 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/psyco/psyco_math_1.c[11705,11718] [2021-08-27 15:14:24,472 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-27 15:14:24,480 INFO L208 MainTranslator]: Completed translation [2021-08-27 15:14:24,481 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:14:24 WrapperNode [2021-08-27 15:14:24,481 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-27 15:14:24,482 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-08-27 15:14:24,482 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-08-27 15:14:24,482 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-08-27 15:14:24,486 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:14:24" (1/1) ... [2021-08-27 15:14:24,491 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:14:24" (1/1) ... [2021-08-27 15:14:24,506 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-08-27 15:14:24,506 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-27 15:14:24,507 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-27 15:14:24,507 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-27 15:14:24,512 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:14:24" (1/1) ... [2021-08-27 15:14:24,512 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:14:24" (1/1) ... [2021-08-27 15:14:24,514 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:14:24" (1/1) ... [2021-08-27 15:14:24,514 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:14:24" (1/1) ... [2021-08-27 15:14:24,517 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:14:24" (1/1) ... [2021-08-27 15:14:24,532 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:14:24" (1/1) ... [2021-08-27 15:14:24,533 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:14:24" (1/1) ... [2021-08-27 15:14:24,536 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-27 15:14:24,541 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-27 15:14:24,542 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-27 15:14:24,542 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-27 15:14:24,544 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:14:24" (1/1) ... [2021-08-27 15:14:24,549 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:14:24,553 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:14:24,566 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) [2021-08-27 15:14:24,584 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 [2021-08-27 15:14:24,597 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-27 15:14:24,597 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-27 15:14:24,597 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-08-27 15:14:24,598 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-08-27 15:14:24,964 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-27 15:14:24,968 INFO L299 CfgBuilder]: Removed 13 assume(true) statements. [2021-08-27 15:14:24,970 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 03:14:24 BoogieIcfgContainer [2021-08-27 15:14:24,970 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-27 15:14:24,971 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-08-27 15:14:24,971 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-08-27 15:14:24,976 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-08-27 15:14:24,977 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-08-27 15:14:24,977 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 27.08 03:14:24" (1/3) ... [2021-08-27 15:14:24,977 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5bc31089 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 27.08 03:14:24, skipping insertion in model container [2021-08-27 15:14:24,978 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-08-27 15:14:24,978 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:14:24" (2/3) ... [2021-08-27 15:14:24,978 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5bc31089 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 27.08 03:14:24, skipping insertion in model container [2021-08-27 15:14:24,978 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-08-27 15:14:24,978 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 03:14:24" (3/3) ... [2021-08-27 15:14:24,979 INFO L389 chiAutomizerObserver]: Analyzing ICFG psyco_math_1.c [2021-08-27 15:14:25,018 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-08-27 15:14:25,019 INFO L360 BuchiCegarLoop]: Hoare is false [2021-08-27 15:14:25,019 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-08-27 15:14:25,019 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-08-27 15:14:25,019 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-08-27 15:14:25,019 INFO L364 BuchiCegarLoop]: Difference is false [2021-08-27 15:14:25,019 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-08-27 15:14:25,019 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-08-27 15:14:25,033 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 69 states, 68 states have (on average 1.911764705882353) internal successors, (130), 68 states have internal predecessors, (130), 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) [2021-08-27 15:14:25,050 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 54 [2021-08-27 15:14:25,050 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-27 15:14:25,051 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-27 15:14:25,055 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-08-27 15:14:25,055 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2021-08-27 15:14:25,055 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-08-27 15:14:25,057 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 69 states, 68 states have (on average 1.911764705882353) internal successors, (130), 68 states have internal predecessors, (130), 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) [2021-08-27 15:14:25,069 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 54 [2021-08-27 15:14:25,069 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-27 15:14:25,069 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-27 15:14:25,070 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-08-27 15:14:25,070 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2021-08-27 15:14:25,074 INFO L791 eck$LassoCheckResult]: Stem: 49#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(15);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);~m_isPowerOfTwo~0 := 1;~m_IntMath~0 := 2;~m_log10~0 := 3;~m_checkedSubtract~0 := 4;~m_checkedMultiply~0 := 5;~m_log2~0 := 6;~m_checkedAdd~0 := 7;~m_mod_1~0 := 8;~m_mod_2~0 := 9;~m_factorial_1~0 := 10;~m_factorial_2~0 := 11; 42#L-1true havoc main_#res;havoc main_#t~nondet7, main_#t~nondet8, main_#t~nondet9, main_#t~nondet10, main_#t~nondet11, main_#t~nondet12, main_#t~nondet13, main_#t~nondet14, main_#t~nondet15, main_#t~nondet16, main_#t~nondet17, main_#t~nondet18, main_#t~nondet19, main_#t~nondet20, main_#t~nondet21, main_#t~nondet22, main_#t~nondet23, main_#t~nondet24, main_#t~nondet25, main_#t~nondet26, main_#t~nondet27, main_#t~nondet28, main_#t~nondet29, main_#t~nondet30, main_#t~nondet31, main_#t~nondet32, main_#t~nondet33, main_#t~nondet34, main_#t~nondet35, main_#t~nondet36, main_#t~nondet37, main_#t~nondet38, main_#t~nondet39, main_#t~nondet40, main_#t~nondet41, main_#t~nondet42, main_~P1~0, main_~P2~0, main_~P3~0, main_~P4~0, main_~P5~0, main_~P6~0, main_~P7~0, main_~P8~0, main_~P9~0, main_~P10~0, main_~P11~0, main_~P12~0, main_~P13~0, main_~P14~0, main_~P15~0, main_~P16~0, main_~P17~0, main_~q~0, main_~method_id~0;main_~q~0 := 0;havoc main_~method_id~0; 11#L28-2true [2021-08-27 15:14:25,074 INFO L793 eck$LassoCheckResult]: Loop: 11#L28-2true goto; 54#L354true assume !false;main_~P1~0 := main_#t~nondet7;havoc main_#t~nondet7;main_~P2~0 := main_#t~nondet8;havoc main_#t~nondet8;main_~P3~0 := main_#t~nondet9;havoc main_#t~nondet9;main_~P4~0 := main_#t~nondet10;havoc main_#t~nondet10;main_~P5~0 := main_#t~nondet11;havoc main_#t~nondet11;main_~P6~0 := main_#t~nondet12;havoc main_#t~nondet12;main_~P7~0 := main_#t~nondet13;havoc main_#t~nondet13;main_~P8~0 := main_#t~nondet14;havoc main_#t~nondet14;main_~P9~0 := main_#t~nondet15;havoc main_#t~nondet15;main_~P10~0 := main_#t~nondet16;havoc main_#t~nondet16;main_~P11~0 := main_#t~nondet17;havoc main_#t~nondet17;main_~P12~0 := main_#t~nondet18;havoc main_#t~nondet18;main_~P13~0 := main_#t~nondet19;havoc main_#t~nondet19;main_~P14~0 := main_#t~nondet20;havoc main_#t~nondet20;main_~P15~0 := main_#t~nondet21;havoc main_#t~nondet21;main_~P16~0 := main_#t~nondet22;havoc main_#t~nondet22;main_~P17~0 := main_#t~nondet23;havoc main_#t~nondet23; 39#L51true assume !(0 == main_~q~0); 66#L70true assume !(1 == main_~q~0); 61#L138true assume !(2 == main_~q~0); 11#L28-2true [2021-08-27 15:14:25,078 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 15:14:25,078 INFO L82 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2021-08-27 15:14:25,084 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 15:14:25,085 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1351610617] [2021-08-27 15:14:25,085 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 15:14:25,085 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 15:14:25,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 15:14:25,163 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 15:14:25,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 15:14:25,209 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 15:14:25,211 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 15:14:25,211 INFO L82 PathProgramCache]: Analyzing trace with hash 34532059, now seen corresponding path program 1 times [2021-08-27 15:14:25,212 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 15:14:25,213 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [377361198] [2021-08-27 15:14:25,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 15:14:25,213 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 15:14:25,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 15:14:25,229 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 15:14:25,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 15:14:25,237 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 15:14:25,238 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 15:14:25,238 INFO L82 PathProgramCache]: Analyzing trace with hash 1805971545, now seen corresponding path program 1 times [2021-08-27 15:14:25,238 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 15:14:25,238 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1458871714] [2021-08-27 15:14:25,238 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 15:14:25,238 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 15:14:25,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 15:14:25,336 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 15:14:25,336 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 15:14:25,337 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1458871714] [2021-08-27 15:14:25,337 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1458871714] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-27 15:14:25,338 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-27 15:14:25,338 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-27 15:14:25,338 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [755379721] [2021-08-27 15:14:25,586 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 15:14:25,595 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-27 15:14:25,596 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-27 15:14:25,597 INFO L87 Difference]: Start difference. First operand has 69 states, 68 states have (on average 1.911764705882353) internal successors, (130), 68 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 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) [2021-08-27 15:14:25,638 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 15:14:25,639 INFO L93 Difference]: Finished difference Result 68 states and 97 transitions. [2021-08-27 15:14:25,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-27 15:14:25,640 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 68 states and 97 transitions. [2021-08-27 15:14:25,645 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 49 [2021-08-27 15:14:25,648 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 68 states to 52 states and 74 transitions. [2021-08-27 15:14:25,649 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 52 [2021-08-27 15:14:25,649 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 52 [2021-08-27 15:14:25,649 INFO L73 IsDeterministic]: Start isDeterministic. Operand 52 states and 74 transitions. [2021-08-27 15:14:25,650 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-27 15:14:25,650 INFO L681 BuchiCegarLoop]: Abstraction has 52 states and 74 transitions. [2021-08-27 15:14:25,662 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states and 74 transitions. [2021-08-27 15:14:25,674 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2021-08-27 15:14:25,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52 states, 52 states have (on average 1.4230769230769231) internal successors, (74), 51 states have internal predecessors, (74), 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) [2021-08-27 15:14:25,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 74 transitions. [2021-08-27 15:14:25,681 INFO L704 BuchiCegarLoop]: Abstraction has 52 states and 74 transitions. [2021-08-27 15:14:25,681 INFO L587 BuchiCegarLoop]: Abstraction has 52 states and 74 transitions. [2021-08-27 15:14:25,681 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-08-27 15:14:25,681 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 52 states and 74 transitions. [2021-08-27 15:14:25,682 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 49 [2021-08-27 15:14:25,682 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-27 15:14:25,682 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-27 15:14:25,682 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2021-08-27 15:14:25,682 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-08-27 15:14:25,682 INFO L791 eck$LassoCheckResult]: Stem: 193#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(15);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);~m_isPowerOfTwo~0 := 1;~m_IntMath~0 := 2;~m_log10~0 := 3;~m_checkedSubtract~0 := 4;~m_checkedMultiply~0 := 5;~m_log2~0 := 6;~m_checkedAdd~0 := 7;~m_mod_1~0 := 8;~m_mod_2~0 := 9;~m_factorial_1~0 := 10;~m_factorial_2~0 := 11; 187#L-1 havoc main_#res;havoc main_#t~nondet7, main_#t~nondet8, main_#t~nondet9, main_#t~nondet10, main_#t~nondet11, main_#t~nondet12, main_#t~nondet13, main_#t~nondet14, main_#t~nondet15, main_#t~nondet16, main_#t~nondet17, main_#t~nondet18, main_#t~nondet19, main_#t~nondet20, main_#t~nondet21, main_#t~nondet22, main_#t~nondet23, main_#t~nondet24, main_#t~nondet25, main_#t~nondet26, main_#t~nondet27, main_#t~nondet28, main_#t~nondet29, main_#t~nondet30, main_#t~nondet31, main_#t~nondet32, main_#t~nondet33, main_#t~nondet34, main_#t~nondet35, main_#t~nondet36, main_#t~nondet37, main_#t~nondet38, main_#t~nondet39, main_#t~nondet40, main_#t~nondet41, main_#t~nondet42, main_~P1~0, main_~P2~0, main_~P3~0, main_~P4~0, main_~P5~0, main_~P6~0, main_~P7~0, main_~P8~0, main_~P9~0, main_~P10~0, main_~P11~0, main_~P12~0, main_~P13~0, main_~P14~0, main_~P15~0, main_~P16~0, main_~P17~0, main_~q~0, main_~method_id~0;main_~q~0 := 0;havoc main_~method_id~0; 160#L28-2 goto; 161#L354 [2021-08-27 15:14:25,683 INFO L793 eck$LassoCheckResult]: Loop: 161#L354 assume !false;main_~P1~0 := main_#t~nondet7;havoc main_#t~nondet7;main_~P2~0 := main_#t~nondet8;havoc main_#t~nondet8;main_~P3~0 := main_#t~nondet9;havoc main_#t~nondet9;main_~P4~0 := main_#t~nondet10;havoc main_#t~nondet10;main_~P5~0 := main_#t~nondet11;havoc main_#t~nondet11;main_~P6~0 := main_#t~nondet12;havoc main_#t~nondet12;main_~P7~0 := main_#t~nondet13;havoc main_#t~nondet13;main_~P8~0 := main_#t~nondet14;havoc main_#t~nondet14;main_~P9~0 := main_#t~nondet15;havoc main_#t~nondet15;main_~P10~0 := main_#t~nondet16;havoc main_#t~nondet16;main_~P11~0 := main_#t~nondet17;havoc main_#t~nondet17;main_~P12~0 := main_#t~nondet18;havoc main_#t~nondet18;main_~P13~0 := main_#t~nondet19;havoc main_#t~nondet19;main_~P14~0 := main_#t~nondet20;havoc main_#t~nondet20;main_~P15~0 := main_#t~nondet21;havoc main_#t~nondet21;main_~P16~0 := main_#t~nondet22;havoc main_#t~nondet22;main_~P17~0 := main_#t~nondet23;havoc main_#t~nondet23; 185#L51 assume 0 == main_~q~0; 186#L52 assume !(0 != main_#t~nondet24);havoc main_#t~nondet24; 161#L354 [2021-08-27 15:14:25,683 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 15:14:25,683 INFO L82 PathProgramCache]: Analyzing trace with hash 29859, now seen corresponding path program 1 times [2021-08-27 15:14:25,683 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 15:14:25,684 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1171529627] [2021-08-27 15:14:25,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 15:14:25,684 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 15:14:25,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 15:14:25,704 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 15:14:25,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 15:14:25,717 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 15:14:25,718 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 15:14:25,718 INFO L82 PathProgramCache]: Analyzing trace with hash 40826, now seen corresponding path program 1 times [2021-08-27 15:14:25,718 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 15:14:25,718 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [511153148] [2021-08-27 15:14:25,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 15:14:25,718 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 15:14:25,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 15:14:25,723 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 15:14:25,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 15:14:25,734 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 15:14:25,738 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 15:14:25,738 INFO L82 PathProgramCache]: Analyzing trace with hash 889540504, now seen corresponding path program 1 times [2021-08-27 15:14:25,738 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 15:14:25,738 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [634549145] [2021-08-27 15:14:25,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 15:14:25,739 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 15:14:25,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 15:14:25,746 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 15:14:25,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 15:14:25,755 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 15:14:26,316 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 27.08 03:14:26 BoogieIcfgContainer [2021-08-27 15:14:26,316 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-08-27 15:14:26,317 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-08-27 15:14:26,317 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-08-27 15:14:26,317 INFO L275 PluginConnector]: Witness Printer initialized [2021-08-27 15:14:26,318 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 03:14:24" (3/4) ... [2021-08-27 15:14:26,320 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2021-08-27 15:14:26,359 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-08-27 15:14:26,359 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-08-27 15:14:26,360 INFO L168 Benchmark]: Toolchain (without parser) took 2157.65 ms. Allocated memory was 56.6 MB in the beginning and 107.0 MB in the end (delta: 50.3 MB). Free memory was 34.2 MB in the beginning and 76.8 MB in the end (delta: -42.6 MB). Peak memory consumption was 7.7 MB. Max. memory is 16.1 GB. [2021-08-27 15:14:26,363 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 56.6 MB. Free memory was 37.6 MB in the beginning and 37.6 MB in the end (delta: 42.5 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-08-27 15:14:26,364 INFO L168 Benchmark]: CACSL2BoogieTranslator took 276.83 ms. Allocated memory is still 56.6 MB. Free memory was 34.0 MB in the beginning and 37.8 MB in the end (delta: -3.9 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-08-27 15:14:26,364 INFO L168 Benchmark]: Boogie Procedure Inliner took 24.19 ms. Allocated memory is still 56.6 MB. Free memory was 37.7 MB in the beginning and 35.7 MB in the end (delta: 1.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-08-27 15:14:26,364 INFO L168 Benchmark]: Boogie Preprocessor took 34.19 ms. Allocated memory is still 56.6 MB. Free memory was 35.7 MB in the beginning and 34.1 MB in the end (delta: 1.6 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-08-27 15:14:26,365 INFO L168 Benchmark]: RCFGBuilder took 429.11 ms. Allocated memory was 56.6 MB in the beginning and 73.4 MB in the end (delta: 16.8 MB). Free memory was 34.1 MB in the beginning and 54.7 MB in the end (delta: -20.5 MB). Peak memory consumption was 20.3 MB. Max. memory is 16.1 GB. [2021-08-27 15:14:26,365 INFO L168 Benchmark]: BuchiAutomizer took 1345.56 ms. Allocated memory was 73.4 MB in the beginning and 107.0 MB in the end (delta: 33.6 MB). Free memory was 54.4 MB in the beginning and 78.7 MB in the end (delta: -24.4 MB). Peak memory consumption was 41.1 MB. Max. memory is 16.1 GB. [2021-08-27 15:14:26,365 INFO L168 Benchmark]: Witness Printer took 41.91 ms. Allocated memory is still 107.0 MB. Free memory was 78.7 MB in the beginning and 76.8 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-08-27 15:14:26,366 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 56.6 MB. Free memory was 37.6 MB in the beginning and 37.6 MB in the end (delta: 42.5 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 276.83 ms. Allocated memory is still 56.6 MB. Free memory was 34.0 MB in the beginning and 37.8 MB in the end (delta: -3.9 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 24.19 ms. Allocated memory is still 56.6 MB. Free memory was 37.7 MB in the beginning and 35.7 MB in the end (delta: 1.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 34.19 ms. Allocated memory is still 56.6 MB. Free memory was 35.7 MB in the beginning and 34.1 MB in the end (delta: 1.6 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 429.11 ms. Allocated memory was 56.6 MB in the beginning and 73.4 MB in the end (delta: 16.8 MB). Free memory was 34.1 MB in the beginning and 54.7 MB in the end (delta: -20.5 MB). Peak memory consumption was 20.3 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 1345.56 ms. Allocated memory was 73.4 MB in the beginning and 107.0 MB in the end (delta: 33.6 MB). Free memory was 54.4 MB in the beginning and 78.7 MB in the end (delta: -24.4 MB). Peak memory consumption was 41.1 MB. Max. memory is 16.1 GB. * Witness Printer took 41.91 ms. Allocated memory is still 107.0 MB. Free memory was 78.7 MB in the beginning and 76.8 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 1 terminating modules (1 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.1 modules have a trivial ranking function, the largest among these consists of 3 locations. The remainder module has 52 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.2s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 1.1s. Construction of modules took 0.0s. Büchi inclusion checks took 0.0s. Highest rank in rank-based complementation 0. Minimization of det autom 1. Minimization of nondet autom 0. Automata minimization 20.9ms AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 52 states and ocurred in iteration 1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 93 SDtfs, 4 SDslu, 68 SDs, 0 SdLazy, 22 SolverSat, 1 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 19.7ms Time LassoAnalysisResults: nont1 unkn0 SFLI0 SFLT0 conc1 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 28]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=20948} State at position 1 is {NULL=0, NULL=20948, m_isPowerOfTwo=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3f8036cb=35, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@652509cf=31, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@52de7fe5=36, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1e60f0b4=33, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2ecbe3aa=25, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@63747636=23, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3f075ff1=34, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@248d1ffd=22, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1a8553c9=24, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@57235a27=28, NULL=0, NULL=0, P8=24, P10=36, P6=34, P4=35, P2=21, m_log2=6, m_mod_1=8, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@54c4d862=0, m_factorial_1=10, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@16f922a0=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6da87802=0, P14=26, P12=25, P16=29, m_checkedAdd=7, NULL=20951, \result=0, m_checkedSubtract=4, m_checkedMultiply=5, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4c82dfb3=30, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1569f228=21, m_IntMath=2, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3f2486ba=27, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@68d422f1=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6f201921=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3f71949d=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@64118acc=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6b453745=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@41e61199=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2d1bef15=0, NULL=20949, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@421d0286=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@71fba324=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1954003d=0, NULL=0, P9=28, P7=22, NULL=20950, P5=31, P3=27, P1=30, m_log10=3, m_mod_2=9, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@42f40cea=26, m_factorial_2=11, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5b88a150=20, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2a2fcf38=29, q=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7e9f3d8f=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2ecfd9c9=0, P13=23, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@56bda0d=0, P11=33, method_id=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6a2ac98d=32, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@8db1b7e=0, P17=32, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1647a914=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4245e2eb=0, P15=20} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 28]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L7] int m_isPowerOfTwo = 1; [L8] int m_IntMath = 2; [L9] int m_log10 = 3; [L10] int m_checkedSubtract = 4; [L11] int m_checkedMultiply = 5; [L12] int m_log2 = 6; [L13] int m_checkedAdd = 7; [L14] int m_mod_1 = 8; [L15] int m_mod_2 = 9; [L16] int m_factorial_1 = 10; [L17] int m_factorial_2 = 11; [L22] int q = 0; [L23] int method_id; Loop: [L28] COND TRUE 1 [L31] int P1=__VERIFIER_nondet_int(); [L32] int P2=__VERIFIER_nondet_int(); [L33] int P3=__VERIFIER_nondet_int(); [L34] int P4=__VERIFIER_nondet_int(); [L35] int P5=__VERIFIER_nondet_int(); [L36] int P6=__VERIFIER_nondet_int(); [L37] int P7=__VERIFIER_nondet_int(); [L38] int P8=__VERIFIER_nondet_int(); [L39] int P9=__VERIFIER_nondet_int(); [L40] int P10=__VERIFIER_nondet_int(); [L41] int P11=__VERIFIER_nondet_int(); [L42] int P12=__VERIFIER_nondet_int(); [L43] int P13=__VERIFIER_nondet_int(); [L44] int P14=__VERIFIER_nondet_int(); [L45] int P15=__VERIFIER_nondet_int(); [L46] int P16=__VERIFIER_nondet_int(); [L47] int P17=__VERIFIER_nondet_int(); [L51] COND TRUE q == 0 [L52] COND FALSE !(__VERIFIER_nondet_int()) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2021-08-27 15:14:26,403 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...