./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 839c364b 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 63c09076012948d358ef22d7f5bfd1d18463c56506eb9759740cc4520130fa60 --- Real Ultimate output --- This is Ultimate 0.2.2-839c364b5d67a0f615c82cb70ab247790648d4a9-839c364 [2021-12-14 23:23:27,267 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-14 23:23:27,269 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-14 23:23:27,331 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-14 23:23:27,332 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-14 23:23:27,334 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-14 23:23:27,335 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-14 23:23:27,337 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-14 23:23:27,338 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-14 23:23:27,341 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-14 23:23:27,342 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-14 23:23:27,343 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-14 23:23:27,343 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-14 23:23:27,348 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-14 23:23:27,349 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-14 23:23:27,352 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-14 23:23:27,353 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-14 23:23:27,354 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-14 23:23:27,355 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-14 23:23:27,360 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-14 23:23:27,361 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-14 23:23:27,362 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-14 23:23:27,364 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-14 23:23:27,364 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-14 23:23:27,369 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-14 23:23:27,369 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-14 23:23:27,370 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-14 23:23:27,371 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-14 23:23:27,371 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-14 23:23:27,372 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-14 23:23:27,372 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-14 23:23:27,373 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-14 23:23:27,374 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-14 23:23:27,375 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-14 23:23:27,376 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-14 23:23:27,376 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-14 23:23:27,376 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-14 23:23:27,376 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-14 23:23:27,377 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-14 23:23:27,377 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-14 23:23:27,378 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-14 23:23:27,378 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-12-14 23:23:27,403 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-14 23:23:27,403 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-14 23:23:27,403 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-14 23:23:27,404 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-14 23:23:27,405 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-14 23:23:27,405 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-14 23:23:27,405 INFO L138 SettingsManager]: * Use SBE=true [2021-12-14 23:23:27,405 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-12-14 23:23:27,405 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-12-14 23:23:27,406 INFO L138 SettingsManager]: * Use old map elimination=false [2021-12-14 23:23:27,406 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-12-14 23:23:27,406 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-12-14 23:23:27,406 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-12-14 23:23:27,407 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-14 23:23:27,407 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-14 23:23:27,407 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-12-14 23:23:27,407 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-14 23:23:27,407 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-14 23:23:27,407 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-14 23:23:27,408 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-12-14 23:23:27,408 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-12-14 23:23:27,408 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-12-14 23:23:27,408 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-14 23:23:27,408 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-14 23:23:27,409 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-12-14 23:23:27,409 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-14 23:23:27,409 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-12-14 23:23:27,410 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-14 23:23:27,410 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-14 23:23:27,410 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-14 23:23:27,410 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-14 23:23:27,410 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-14 23:23:27,411 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-12-14 23:23:27,411 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 63c09076012948d358ef22d7f5bfd1d18463c56506eb9759740cc4520130fa60 [2021-12-14 23:23:27,634 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-14 23:23:27,651 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-14 23:23:27,653 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-14 23:23:27,654 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-14 23:23:27,654 INFO L275 PluginConnector]: CDTParser initialized [2021-12-14 23:23:27,655 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/psyco/psyco_math_1.c [2021-12-14 23:23:27,701 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/12cf34201/098f414d848447c29bccb305ad37b165/FLAGb86f6eefa [2021-12-14 23:23:28,043 INFO L306 CDTParser]: Found 1 translation units. [2021-12-14 23:23:28,043 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/psyco/psyco_math_1.c [2021-12-14 23:23:28,049 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/12cf34201/098f414d848447c29bccb305ad37b165/FLAGb86f6eefa [2021-12-14 23:23:28,489 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/12cf34201/098f414d848447c29bccb305ad37b165 [2021-12-14 23:23:28,491 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-14 23:23:28,492 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-14 23:23:28,496 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-14 23:23:28,496 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-14 23:23:28,499 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-14 23:23:28,499 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 11:23:28" (1/1) ... [2021-12-14 23:23:28,500 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@14a3deee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:23:28, skipping insertion in model container [2021-12-14 23:23:28,500 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 11:23:28" (1/1) ... [2021-12-14 23:23:28,506 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-14 23:23:28,535 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-14 23:23:28,721 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/psyco/psyco_math_1.c[11705,11718] [2021-12-14 23:23:28,725 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-14 23:23:28,734 INFO L203 MainTranslator]: Completed pre-run [2021-12-14 23:23:28,768 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/psyco/psyco_math_1.c[11705,11718] [2021-12-14 23:23:28,777 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-14 23:23:28,786 INFO L208 MainTranslator]: Completed translation [2021-12-14 23:23:28,788 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:23:28 WrapperNode [2021-12-14 23:23:28,788 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-14 23:23:28,789 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-14 23:23:28,790 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-14 23:23:28,790 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-14 23:23:28,795 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:23:28" (1/1) ... [2021-12-14 23:23:28,809 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:23:28" (1/1) ... [2021-12-14 23:23:28,833 INFO L137 Inliner]: procedures = 12, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 251 [2021-12-14 23:23:28,834 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-14 23:23:28,835 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-14 23:23:28,835 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-14 23:23:28,835 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-14 23:23:28,841 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:23:28" (1/1) ... [2021-12-14 23:23:28,842 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:23:28" (1/1) ... [2021-12-14 23:23:28,843 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:23:28" (1/1) ... [2021-12-14 23:23:28,847 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:23:28" (1/1) ... [2021-12-14 23:23:28,857 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:23:28" (1/1) ... [2021-12-14 23:23:28,870 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:23:28" (1/1) ... [2021-12-14 23:23:28,874 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:23:28" (1/1) ... [2021-12-14 23:23:28,879 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-14 23:23:28,881 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-14 23:23:28,881 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-14 23:23:28,881 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-14 23:23:28,882 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:23:28" (1/1) ... [2021-12-14 23:23:28,887 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-14 23:23:28,899 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 23:23:28,911 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) [2021-12-14 23:23:28,916 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 [2021-12-14 23:23:28,935 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-14 23:23:28,935 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-14 23:23:28,935 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-14 23:23:28,935 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-14 23:23:29,010 INFO L236 CfgBuilder]: Building ICFG [2021-12-14 23:23:29,011 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-14 23:23:29,155 INFO L277 CfgBuilder]: Performing block encoding [2021-12-14 23:23:29,159 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-14 23:23:29,159 INFO L301 CfgBuilder]: Removed 9 assume(true) statements. [2021-12-14 23:23:29,161 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 11:23:29 BoogieIcfgContainer [2021-12-14 23:23:29,161 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-14 23:23:29,161 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-12-14 23:23:29,161 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-12-14 23:23:29,164 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-12-14 23:23:29,164 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-14 23:23:29,164 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 14.12 11:23:28" (1/3) ... [2021-12-14 23:23:29,165 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7d7faf4c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 14.12 11:23:29, skipping insertion in model container [2021-12-14 23:23:29,165 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-14 23:23:29,165 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:23:28" (2/3) ... [2021-12-14 23:23:29,166 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7d7faf4c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 14.12 11:23:29, skipping insertion in model container [2021-12-14 23:23:29,166 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-14 23:23:29,166 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 11:23:29" (3/3) ... [2021-12-14 23:23:29,167 INFO L388 chiAutomizerObserver]: Analyzing ICFG psyco_math_1.c [2021-12-14 23:23:29,193 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-12-14 23:23:29,193 INFO L360 BuchiCegarLoop]: Hoare is false [2021-12-14 23:23:29,193 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-12-14 23:23:29,193 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-12-14 23:23:29,193 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-12-14 23:23:29,193 INFO L364 BuchiCegarLoop]: Difference is false [2021-12-14 23:23:29,194 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-12-14 23:23:29,194 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-12-14 23:23:29,204 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) [2021-12-14 23:23:29,222 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 54 [2021-12-14 23:23:29,223 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-14 23:23:29,223 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-14 23:23:29,227 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-12-14 23:23:29,228 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2021-12-14 23:23:29,228 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-12-14 23:23:29,228 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) [2021-12-14 23:23:29,242 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 54 [2021-12-14 23:23:29,242 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-14 23:23:29,243 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-14 23:23:29,243 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-12-14 23:23:29,243 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2021-12-14 23:23:29,248 INFO L791 eck$LassoCheckResult]: Stem: 49#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(15, 2);call #Ultimate.allocInit(12, 3);~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 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet4#1, main_#t~nondet5#1, main_#t~nondet6#1, main_#t~nondet7#1, main_#t~nondet8#1, main_#t~nondet9#1, main_#t~nondet10#1, main_#t~nondet11#1, main_#t~nondet12#1, main_#t~nondet13#1, main_#t~nondet14#1, main_#t~nondet15#1, main_#t~nondet16#1, main_#t~nondet17#1, main_#t~nondet18#1, main_#t~nondet19#1, main_#t~nondet20#1, main_#t~nondet21#1, main_#t~nondet22#1, main_#t~nondet23#1, main_#t~nondet24#1, main_#t~nondet25#1, main_#t~nondet26#1, main_#t~nondet27#1, main_#t~nondet28#1, main_#t~nondet29#1, main_#t~nondet30#1, main_#t~nondet31#1, main_#t~nondet32#1, main_#t~nondet33#1, main_#t~nondet34#1, main_#t~nondet35#1, main_#t~nondet36#1, main_#t~nondet37#1, main_#t~nondet38#1, main_#t~nondet39#1, main_~P1~0#1, main_~P2~0#1, main_~P3~0#1, main_~P4~0#1, main_~P5~0#1, main_~P6~0#1, main_~P7~0#1, main_~P8~0#1, main_~P9~0#1, main_~P10~0#1, main_~P11~0#1, main_~P12~0#1, main_~P13~0#1, main_~P14~0#1, main_~P15~0#1, main_~P16~0#1, main_~P17~0#1, main_~q~0#1, main_~method_id~0#1;main_~q~0#1 := 0;havoc main_~method_id~0#1; 11#L28-2true [2021-12-14 23:23:29,249 INFO L793 eck$LassoCheckResult]: Loop: 11#L28-2true goto; 54#L354true assume !false;main_~P1~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1;main_~P2~0#1 := main_#t~nondet5#1;havoc main_#t~nondet5#1;main_~P3~0#1 := main_#t~nondet6#1;havoc main_#t~nondet6#1;main_~P4~0#1 := main_#t~nondet7#1;havoc main_#t~nondet7#1;main_~P5~0#1 := main_#t~nondet8#1;havoc main_#t~nondet8#1;main_~P6~0#1 := main_#t~nondet9#1;havoc main_#t~nondet9#1;main_~P7~0#1 := main_#t~nondet10#1;havoc main_#t~nondet10#1;main_~P8~0#1 := main_#t~nondet11#1;havoc main_#t~nondet11#1;main_~P9~0#1 := main_#t~nondet12#1;havoc main_#t~nondet12#1;main_~P10~0#1 := main_#t~nondet13#1;havoc main_#t~nondet13#1;main_~P11~0#1 := main_#t~nondet14#1;havoc main_#t~nondet14#1;main_~P12~0#1 := main_#t~nondet15#1;havoc main_#t~nondet15#1;main_~P13~0#1 := main_#t~nondet16#1;havoc main_#t~nondet16#1;main_~P14~0#1 := main_#t~nondet17#1;havoc main_#t~nondet17#1;main_~P15~0#1 := main_#t~nondet18#1;havoc main_#t~nondet18#1;main_~P16~0#1 := main_#t~nondet19#1;havoc main_#t~nondet19#1;main_~P17~0#1 := main_#t~nondet20#1;havoc main_#t~nondet20#1; 39#L51true assume !(0 == main_~q~0#1); 66#L70true assume !(1 == main_~q~0#1); 61#L138true assume !(2 == main_~q~0#1); 11#L28-2true [2021-12-14 23:23:29,253 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 23:23:29,253 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2021-12-14 23:23:29,259 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 23:23:29,259 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2013202255] [2021-12-14 23:23:29,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 23:23:29,260 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 23:23:29,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-14 23:23:29,312 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-14 23:23:29,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-14 23:23:29,353 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-14 23:23:29,355 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 23:23:29,355 INFO L85 PathProgramCache]: Analyzing trace with hash 34532059, now seen corresponding path program 1 times [2021-12-14 23:23:29,356 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 23:23:29,357 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [996312728] [2021-12-14 23:23:29,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 23:23:29,357 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 23:23:29,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-14 23:23:29,377 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-14 23:23:29,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-14 23:23:29,391 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-14 23:23:29,393 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 23:23:29,393 INFO L85 PathProgramCache]: Analyzing trace with hash 1805971545, now seen corresponding path program 1 times [2021-12-14 23:23:29,393 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 23:23:29,393 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1544074485] [2021-12-14 23:23:29,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 23:23:29,394 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 23:23:29,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 23:23:29,481 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-14 23:23:29,481 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 23:23:29,481 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1544074485] [2021-12-14 23:23:29,482 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1544074485] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 23:23:29,482 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 23:23:29,483 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-14 23:23:29,483 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1593684620] [2021-12-14 23:23:29,483 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 23:23:29,721 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 23:23:29,747 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-14 23:23:29,748 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-14 23:23:29,750 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) [2021-12-14 23:23:29,798 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 23:23:29,799 INFO L93 Difference]: Finished difference Result 68 states and 97 transitions. [2021-12-14 23:23:29,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-14 23:23:29,804 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 68 states and 97 transitions. [2021-12-14 23:23:29,825 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 49 [2021-12-14 23:23:29,828 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 68 states to 52 states and 74 transitions. [2021-12-14 23:23:29,829 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 52 [2021-12-14 23:23:29,829 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 52 [2021-12-14 23:23:29,830 INFO L73 IsDeterministic]: Start isDeterministic. Operand 52 states and 74 transitions. [2021-12-14 23:23:29,830 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-14 23:23:29,831 INFO L681 BuchiCegarLoop]: Abstraction has 52 states and 74 transitions. [2021-12-14 23:23:29,841 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states and 74 transitions. [2021-12-14 23:23:29,852 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2021-12-14 23:23:29,854 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) [2021-12-14 23:23:29,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 74 transitions. [2021-12-14 23:23:29,857 INFO L704 BuchiCegarLoop]: Abstraction has 52 states and 74 transitions. [2021-12-14 23:23:29,857 INFO L587 BuchiCegarLoop]: Abstraction has 52 states and 74 transitions. [2021-12-14 23:23:29,857 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-12-14 23:23:29,857 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 52 states and 74 transitions. [2021-12-14 23:23:29,862 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 49 [2021-12-14 23:23:29,864 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-14 23:23:29,864 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-14 23:23:29,864 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2021-12-14 23:23:29,864 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-12-14 23:23:29,864 INFO L791 eck$LassoCheckResult]: Stem: 193#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(15, 2);call #Ultimate.allocInit(12, 3);~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 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet4#1, main_#t~nondet5#1, main_#t~nondet6#1, main_#t~nondet7#1, main_#t~nondet8#1, main_#t~nondet9#1, main_#t~nondet10#1, main_#t~nondet11#1, main_#t~nondet12#1, main_#t~nondet13#1, main_#t~nondet14#1, main_#t~nondet15#1, main_#t~nondet16#1, main_#t~nondet17#1, main_#t~nondet18#1, main_#t~nondet19#1, main_#t~nondet20#1, main_#t~nondet21#1, main_#t~nondet22#1, main_#t~nondet23#1, main_#t~nondet24#1, main_#t~nondet25#1, main_#t~nondet26#1, main_#t~nondet27#1, main_#t~nondet28#1, main_#t~nondet29#1, main_#t~nondet30#1, main_#t~nondet31#1, main_#t~nondet32#1, main_#t~nondet33#1, main_#t~nondet34#1, main_#t~nondet35#1, main_#t~nondet36#1, main_#t~nondet37#1, main_#t~nondet38#1, main_#t~nondet39#1, main_~P1~0#1, main_~P2~0#1, main_~P3~0#1, main_~P4~0#1, main_~P5~0#1, main_~P6~0#1, main_~P7~0#1, main_~P8~0#1, main_~P9~0#1, main_~P10~0#1, main_~P11~0#1, main_~P12~0#1, main_~P13~0#1, main_~P14~0#1, main_~P15~0#1, main_~P16~0#1, main_~P17~0#1, main_~q~0#1, main_~method_id~0#1;main_~q~0#1 := 0;havoc main_~method_id~0#1; 160#L28-2 goto; 161#L354 [2021-12-14 23:23:29,865 INFO L793 eck$LassoCheckResult]: Loop: 161#L354 assume !false;main_~P1~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1;main_~P2~0#1 := main_#t~nondet5#1;havoc main_#t~nondet5#1;main_~P3~0#1 := main_#t~nondet6#1;havoc main_#t~nondet6#1;main_~P4~0#1 := main_#t~nondet7#1;havoc main_#t~nondet7#1;main_~P5~0#1 := main_#t~nondet8#1;havoc main_#t~nondet8#1;main_~P6~0#1 := main_#t~nondet9#1;havoc main_#t~nondet9#1;main_~P7~0#1 := main_#t~nondet10#1;havoc main_#t~nondet10#1;main_~P8~0#1 := main_#t~nondet11#1;havoc main_#t~nondet11#1;main_~P9~0#1 := main_#t~nondet12#1;havoc main_#t~nondet12#1;main_~P10~0#1 := main_#t~nondet13#1;havoc main_#t~nondet13#1;main_~P11~0#1 := main_#t~nondet14#1;havoc main_#t~nondet14#1;main_~P12~0#1 := main_#t~nondet15#1;havoc main_#t~nondet15#1;main_~P13~0#1 := main_#t~nondet16#1;havoc main_#t~nondet16#1;main_~P14~0#1 := main_#t~nondet17#1;havoc main_#t~nondet17#1;main_~P15~0#1 := main_#t~nondet18#1;havoc main_#t~nondet18#1;main_~P16~0#1 := main_#t~nondet19#1;havoc main_#t~nondet19#1;main_~P17~0#1 := main_#t~nondet20#1;havoc main_#t~nondet20#1; 185#L51 assume 0 == main_~q~0#1; 186#L52 assume !(0 != main_#t~nondet21#1);havoc main_#t~nondet21#1; 161#L354 [2021-12-14 23:23:29,865 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 23:23:29,865 INFO L85 PathProgramCache]: Analyzing trace with hash 29859, now seen corresponding path program 1 times [2021-12-14 23:23:29,865 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 23:23:29,866 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1140667088] [2021-12-14 23:23:29,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 23:23:29,867 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 23:23:29,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-14 23:23:29,876 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-14 23:23:29,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-14 23:23:29,884 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-14 23:23:29,888 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 23:23:29,889 INFO L85 PathProgramCache]: Analyzing trace with hash 40826, now seen corresponding path program 1 times [2021-12-14 23:23:29,889 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 23:23:29,889 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [154519302] [2021-12-14 23:23:29,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 23:23:29,890 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 23:23:29,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-14 23:23:29,895 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-14 23:23:29,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-14 23:23:29,900 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-14 23:23:29,900 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 23:23:29,900 INFO L85 PathProgramCache]: Analyzing trace with hash 889540504, now seen corresponding path program 1 times [2021-12-14 23:23:29,900 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 23:23:29,901 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1346146968] [2021-12-14 23:23:29,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 23:23:29,901 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 23:23:29,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-14 23:23:29,907 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-14 23:23:29,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-14 23:23:29,928 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-14 23:23:30,259 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 14.12 11:23:30 BoogieIcfgContainer [2021-12-14 23:23:30,260 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-12-14 23:23:30,261 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-14 23:23:30,261 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-14 23:23:30,261 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-14 23:23:30,262 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 11:23:29" (3/4) ... [2021-12-14 23:23:30,265 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2021-12-14 23:23:30,299 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-12-14 23:23:30,300 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-14 23:23:30,300 INFO L158 Benchmark]: Toolchain (without parser) took 1808.06ms. Allocated memory was 96.5MB in the beginning and 117.4MB in the end (delta: 21.0MB). Free memory was 64.0MB in the beginning and 56.1MB in the end (delta: 7.9MB). Peak memory consumption was 28.3MB. Max. memory is 16.1GB. [2021-12-14 23:23:30,300 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 96.5MB. Free memory was 53.8MB in the beginning and 53.8MB in the end (delta: 34.3kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-14 23:23:30,301 INFO L158 Benchmark]: CACSL2BoogieTranslator took 292.63ms. Allocated memory was 96.5MB in the beginning and 117.4MB in the end (delta: 21.0MB). Free memory was 63.7MB in the beginning and 91.5MB in the end (delta: -27.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-12-14 23:23:30,301 INFO L158 Benchmark]: Boogie Procedure Inliner took 44.58ms. Allocated memory is still 117.4MB. Free memory was 91.5MB in the beginning and 89.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-14 23:23:30,302 INFO L158 Benchmark]: Boogie Preprocessor took 45.19ms. Allocated memory is still 117.4MB. Free memory was 89.4MB in the beginning and 88.1MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-14 23:23:30,302 INFO L158 Benchmark]: RCFGBuilder took 280.04ms. Allocated memory is still 117.4MB. Free memory was 88.1MB in the beginning and 73.8MB in the end (delta: 14.3MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2021-12-14 23:23:30,302 INFO L158 Benchmark]: BuchiAutomizer took 1098.89ms. Allocated memory is still 117.4MB. Free memory was 73.8MB in the beginning and 58.0MB in the end (delta: 15.8MB). Peak memory consumption was 16.5MB. Max. memory is 16.1GB. [2021-12-14 23:23:30,302 INFO L158 Benchmark]: Witness Printer took 38.94ms. Allocated memory is still 117.4MB. Free memory was 58.0MB in the beginning and 56.1MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-14 23:23:30,304 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 96.5MB. Free memory was 53.8MB in the beginning and 53.8MB in the end (delta: 34.3kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 292.63ms. Allocated memory was 96.5MB in the beginning and 117.4MB in the end (delta: 21.0MB). Free memory was 63.7MB in the beginning and 91.5MB in the end (delta: -27.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 44.58ms. Allocated memory is still 117.4MB. Free memory was 91.5MB in the beginning and 89.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 45.19ms. Allocated memory is still 117.4MB. Free memory was 89.4MB in the beginning and 88.1MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 280.04ms. Allocated memory is still 117.4MB. Free memory was 88.1MB in the beginning and 73.8MB in the end (delta: 14.3MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * BuchiAutomizer took 1098.89ms. Allocated memory is still 117.4MB. Free memory was 73.8MB in the beginning and 58.0MB in the end (delta: 15.8MB). Peak memory consumption was 16.5MB. Max. memory is 16.1GB. * Witness Printer took 38.94ms. Allocated memory is still 117.4MB. Free memory was 58.0MB in the beginning and 56.1MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * 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 1.0s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 0.8s. 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 0.0s 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: 0 mSolverCounterUnknown, 4 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 4 mSDsluCounter, 161 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 68 mSDsCounter, 1 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 22 IncrementalHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1 mSolverCounterUnsat, 93 mSDtfsCounter, 22 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown 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=1} State at position 1 is {P16=13, NULL=0, P5=22, NULL=1, P15=27, m_isPowerOfTwo=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@70147dc0=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1e98bdb5=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@68c51d1b=18, P4=30, P17=18, method_id=0, P3=14, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5c541bb1=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@73e0f915=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@28efc313=21, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@48f19b38=30, q=0, P2=21, \result=0, P13=25, m_log2=6, m_mod_1=8, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@360405e1=23, m_factorial_1=10, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7c7a4368=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6bfbaf01=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6d69b9bb=28, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@74ff3e3b=0, P1=17, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@541f4a05=13, P14=20, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3abb29e8=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5282255d=20, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@117d3533=16, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@289d7c71=0, m_checkedAdd=7, P9=29, P10=23, m_checkedSubtract=4, m_checkedMultiply=5, m_IntMath=2, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@30f98301=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2b2e6593=0, P8=28, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@23577b=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@f7d8de3=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@23c72ad3=19, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@28ce8cac=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1503f97a=14, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@75669837=22, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@406fb8a1=17, P12=16, m_log10=3, P7=26, m_mod_2=9, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2c0f2301=29, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1e284b12=0, m_factorial_2=11, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@71f9a58a=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2905dff8=26, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@178eb7d2=0, P11=24, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2cb3260d=27, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@66178576=0, P6=19, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@443f1b36=25, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3179f6c6=24, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@14f4491d=0} - 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! [2021-12-14 23:23:30,349 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 Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM)