./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 8d31f386 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-wip.dd.multireach-323-8d31f38 [2021-07-06 19:28:21,224 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-07-06 19:28:21,226 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-07-06 19:28:21,250 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-07-06 19:28:21,250 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-07-06 19:28:21,252 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-07-06 19:28:21,253 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-07-06 19:28:21,254 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-07-06 19:28:21,256 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-07-06 19:28:21,257 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-07-06 19:28:21,257 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-07-06 19:28:21,259 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-07-06 19:28:21,259 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-07-06 19:28:21,260 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-07-06 19:28:21,261 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-07-06 19:28:21,262 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-07-06 19:28:21,262 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-07-06 19:28:21,263 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-07-06 19:28:21,265 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-07-06 19:28:21,266 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-07-06 19:28:21,267 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-07-06 19:28:21,273 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-07-06 19:28:21,274 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-07-06 19:28:21,275 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-07-06 19:28:21,277 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-07-06 19:28:21,279 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-07-06 19:28:21,279 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-07-06 19:28:21,280 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-07-06 19:28:21,281 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-07-06 19:28:21,281 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-07-06 19:28:21,282 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-07-06 19:28:21,283 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-07-06 19:28:21,284 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-07-06 19:28:21,286 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-07-06 19:28:21,288 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-07-06 19:28:21,288 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-07-06 19:28:21,288 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-07-06 19:28:21,289 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-07-06 19:28:21,289 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-07-06 19:28:21,290 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-07-06 19:28:21,291 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-07-06 19:28:21,292 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-07-06 19:28:21,330 INFO L113 SettingsManager]: Loading preferences was successful [2021-07-06 19:28:21,330 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-07-06 19:28:21,332 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-07-06 19:28:21,332 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-07-06 19:28:21,332 INFO L138 SettingsManager]: * Use SBE=true [2021-07-06 19:28:21,333 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-07-06 19:28:21,333 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-07-06 19:28:21,333 INFO L138 SettingsManager]: * Use old map elimination=false [2021-07-06 19:28:21,333 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-07-06 19:28:21,333 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-07-06 19:28:21,334 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-07-06 19:28:21,340 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-07-06 19:28:21,340 INFO L138 SettingsManager]: * sizeof long=4 [2021-07-06 19:28:21,340 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-07-06 19:28:21,340 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-07-06 19:28:21,341 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-07-06 19:28:21,341 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-07-06 19:28:21,341 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-07-06 19:28:21,341 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-07-06 19:28:21,341 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-07-06 19:28:21,341 INFO L138 SettingsManager]: * sizeof long double=12 [2021-07-06 19:28:21,342 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-07-06 19:28:21,342 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-07-06 19:28:21,342 INFO L138 SettingsManager]: * Use constant arrays=true [2021-07-06 19:28:21,342 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-07-06 19:28:21,342 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-07-06 19:28:21,342 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-07-06 19:28:21,343 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-07-06 19:28:21,343 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-07-06 19:28:21,343 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-07-06 19:28:21,344 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-07-06 19:28:21,344 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8b21ad1baeb92c3a8a2023c182a4742236703971 [2021-07-06 19:28:21,637 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-07-06 19:28:21,660 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-07-06 19:28:21,663 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-07-06 19:28:21,664 INFO L271 PluginConnector]: Initializing CDTParser... [2021-07-06 19:28:21,664 INFO L275 PluginConnector]: CDTParser initialized [2021-07-06 19:28:21,665 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/psyco/psyco_math_1.c [2021-07-06 19:28:21,722 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9e5fc2151/60abe81939c44bd59f7b5965b8c3cb5b/FLAG50eb64eb3 [2021-07-06 19:28:22,186 INFO L306 CDTParser]: Found 1 translation units. [2021-07-06 19:28:22,188 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/psyco/psyco_math_1.c [2021-07-06 19:28:22,199 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9e5fc2151/60abe81939c44bd59f7b5965b8c3cb5b/FLAG50eb64eb3 [2021-07-06 19:28:22,714 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9e5fc2151/60abe81939c44bd59f7b5965b8c3cb5b [2021-07-06 19:28:22,716 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-07-06 19:28:22,717 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-07-06 19:28:22,719 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-07-06 19:28:22,719 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-07-06 19:28:22,721 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-07-06 19:28:22,722 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.07 07:28:22" (1/1) ... [2021-07-06 19:28:22,723 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5b30a89 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 07:28:22, skipping insertion in model container [2021-07-06 19:28:22,723 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.07 07:28:22" (1/1) ... [2021-07-06 19:28:22,729 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-07-06 19:28:22,753 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-07-06 19:28:22,910 WARN L224 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] [2021-07-06 19:28:22,911 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-07-06 19:28:22,918 INFO L203 MainTranslator]: Completed pre-run [2021-07-06 19:28:22,988 WARN L224 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] [2021-07-06 19:28:22,989 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-07-06 19:28:23,000 INFO L208 MainTranslator]: Completed translation [2021-07-06 19:28:23,001 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 07:28:23 WrapperNode [2021-07-06 19:28:23,001 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-07-06 19:28:23,002 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-07-06 19:28:23,002 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-07-06 19:28:23,002 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-07-06 19:28:23,007 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 07:28:23" (1/1) ... [2021-07-06 19:28:23,014 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 07:28:23" (1/1) ... [2021-07-06 19:28:23,033 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-07-06 19:28:23,034 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-07-06 19:28:23,034 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-07-06 19:28:23,034 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-07-06 19:28:23,041 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 07:28:23" (1/1) ... [2021-07-06 19:28:23,041 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 07:28:23" (1/1) ... [2021-07-06 19:28:23,043 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 07:28:23" (1/1) ... [2021-07-06 19:28:23,043 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 07:28:23" (1/1) ... [2021-07-06 19:28:23,048 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 07:28:23" (1/1) ... [2021-07-06 19:28:23,053 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 07:28:23" (1/1) ... [2021-07-06 19:28:23,054 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 07:28:23" (1/1) ... [2021-07-06 19:28:23,057 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-07-06 19:28:23,058 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-07-06 19:28:23,058 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-07-06 19:28:23,058 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-07-06 19:28:23,059 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 07:28:23" (1/1) ... [2021-07-06 19:28:23,064 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-07-06 19:28:23,069 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-07-06 19:28:23,082 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) [2021-07-06 19:28:23,110 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 [2021-07-06 19:28:23,123 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-07-06 19:28:23,124 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-07-06 19:28:23,125 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-07-06 19:28:23,125 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-07-06 19:28:23,659 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-07-06 19:28:23,660 INFO L299 CfgBuilder]: Removed 13 assume(true) statements. [2021-07-06 19:28:23,661 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.07 07:28:23 BoogieIcfgContainer [2021-07-06 19:28:23,661 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-07-06 19:28:23,662 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-07-06 19:28:23,663 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-07-06 19:28:23,665 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-07-06 19:28:23,666 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-07-06 19:28:23,666 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 06.07 07:28:22" (1/3) ... [2021-07-06 19:28:23,667 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@63f8e837 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 06.07 07:28:23, skipping insertion in model container [2021-07-06 19:28:23,667 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-07-06 19:28:23,668 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 07:28:23" (2/3) ... [2021-07-06 19:28:23,668 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@63f8e837 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 06.07 07:28:23, skipping insertion in model container [2021-07-06 19:28:23,668 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-07-06 19:28:23,668 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.07 07:28:23" (3/3) ... [2021-07-06 19:28:23,670 INFO L389 chiAutomizerObserver]: Analyzing ICFG psyco_math_1.c [2021-07-06 19:28:23,721 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-07-06 19:28:23,721 INFO L360 BuchiCegarLoop]: Hoare is false [2021-07-06 19:28:23,722 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-07-06 19:28:23,722 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-07-06 19:28:23,722 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-07-06 19:28:23,722 INFO L364 BuchiCegarLoop]: Difference is false [2021-07-06 19:28:23,722 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-07-06 19:28:23,722 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-07-06 19:28:23,749 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) [2021-07-06 19:28:23,773 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 54 [2021-07-06 19:28:23,773 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-07-06 19:28:23,773 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-07-06 19:28:23,779 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-07-06 19:28:23,779 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2021-07-06 19:28:23,780 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-07-06 19:28:23,782 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) [2021-07-06 19:28:23,797 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 54 [2021-07-06 19:28:23,797 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-07-06 19:28:23,797 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-07-06 19:28:23,798 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-07-06 19:28:23,798 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2021-07-06 19:28:23,804 INFO L791 eck$LassoCheckResult]: Stem: 38#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; 13#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; 59#L28-2true [2021-07-06 19:28:23,804 INFO L793 eck$LassoCheckResult]: Loop: 59#L28-2true goto; 7#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; 9#L51true assume !(0 == main_~q~0); 31#L70true assume !(1 == main_~q~0); 15#L138true assume !(2 == main_~q~0); 59#L28-2true [2021-07-06 19:28:23,809 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-06 19:28:23,810 INFO L82 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2021-07-06 19:28:23,815 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-06 19:28:23,817 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [281269573] [2021-07-06 19:28:23,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-06 19:28:23,817 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-07-06 19:28:23,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-06 19:28:23,907 INFO L224 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-06 19:28:23,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-06 19:28:23,943 INFO L224 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-06 19:28:23,975 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-07-06 19:28:23,977 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-06 19:28:23,978 INFO L82 PathProgramCache]: Analyzing trace with hash 34532059, now seen corresponding path program 1 times [2021-07-06 19:28:23,978 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-06 19:28:23,978 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1731744422] [2021-07-06 19:28:23,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-06 19:28:23,979 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-07-06 19:28:23,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-06 19:28:23,984 INFO L224 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-06 19:28:23,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-06 19:28:23,988 INFO L224 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-06 19:28:23,992 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-07-06 19:28:23,993 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-06 19:28:23,993 INFO L82 PathProgramCache]: Analyzing trace with hash 1805971545, now seen corresponding path program 1 times [2021-07-06 19:28:23,993 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-06 19:28:23,994 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2051146240] [2021-07-06 19:28:23,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-06 19:28:23,994 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-07-06 19:28:24,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-06 19:28:24,040 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 19:28:24,041 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-06 19:28:24,042 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 19:28:24,042 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-06 19:28:24,052 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 19:28:24,053 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-06 19:28:24,054 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-06 19:28:24,054 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-06 19:28:24,054 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2051146240] [2021-07-06 19:28:24,055 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2051146240] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-06 19:28:24,055 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-06 19:28:24,055 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-07-06 19:28:24,056 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [137363679] [2021-07-06 19:28:24,170 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 62 [2021-07-06 19:28:24,181 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 19:28:24,185 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 64 [2021-07-06 19:28:24,274 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-06 19:28:24,285 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-07-06 19:28:24,286 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-07-06 19:28:24,287 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) [2021-07-06 19:28:24,339 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-06 19:28:24,340 INFO L93 Difference]: Finished difference Result 68 states and 97 transitions. [2021-07-06 19:28:24,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-06 19:28:24,342 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 68 states and 97 transitions. [2021-07-06 19:28:24,344 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 49 [2021-07-06 19:28:24,347 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 68 states to 52 states and 74 transitions. [2021-07-06 19:28:24,348 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 52 [2021-07-06 19:28:24,348 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 52 [2021-07-06 19:28:24,348 INFO L73 IsDeterministic]: Start isDeterministic. Operand 52 states and 74 transitions. [2021-07-06 19:28:24,349 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-07-06 19:28:24,349 INFO L681 BuchiCegarLoop]: Abstraction has 52 states and 74 transitions. [2021-07-06 19:28:24,361 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states and 74 transitions. [2021-07-06 19:28:24,369 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2021-07-06 19:28:24,370 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) [2021-07-06 19:28:24,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 74 transitions. [2021-07-06 19:28:24,372 INFO L704 BuchiCegarLoop]: Abstraction has 52 states and 74 transitions. [2021-07-06 19:28:24,372 INFO L587 BuchiCegarLoop]: Abstraction has 52 states and 74 transitions. [2021-07-06 19:28:24,372 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-07-06 19:28:24,372 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 52 states and 74 transitions. [2021-07-06 19:28:24,373 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 49 [2021-07-06 19:28:24,373 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-07-06 19:28:24,373 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-07-06 19:28:24,374 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2021-07-06 19:28:24,374 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-07-06 19:28:24,374 INFO L791 eck$LassoCheckResult]: Stem: 188#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; 160#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; 161#L28-2 goto; 154#L354 [2021-07-06 19:28:24,374 INFO L793 eck$LassoCheckResult]: Loop: 154#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; 155#L51 assume 0 == main_~q~0; 158#L52 assume !(0 != main_#t~nondet24);havoc main_#t~nondet24; 154#L354 [2021-07-06 19:28:24,375 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-06 19:28:24,375 INFO L82 PathProgramCache]: Analyzing trace with hash 29859, now seen corresponding path program 1 times [2021-07-06 19:28:24,375 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-06 19:28:24,375 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [800060247] [2021-07-06 19:28:24,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-06 19:28:24,382 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-07-06 19:28:24,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-06 19:28:24,407 INFO L224 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-06 19:28:24,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-06 19:28:24,421 INFO L224 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-06 19:28:24,433 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-07-06 19:28:24,436 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-06 19:28:24,437 INFO L82 PathProgramCache]: Analyzing trace with hash 40826, now seen corresponding path program 1 times [2021-07-06 19:28:24,437 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-06 19:28:24,438 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [823708583] [2021-07-06 19:28:24,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-06 19:28:24,439 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-07-06 19:28:24,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-06 19:28:24,446 INFO L224 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-06 19:28:24,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-06 19:28:24,457 INFO L224 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-06 19:28:24,459 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-07-06 19:28:24,462 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-06 19:28:24,462 INFO L82 PathProgramCache]: Analyzing trace with hash 889540504, now seen corresponding path program 1 times [2021-07-06 19:28:24,462 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-06 19:28:24,463 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1459539030] [2021-07-06 19:28:24,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-06 19:28:24,463 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-07-06 19:28:24,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-06 19:28:24,479 INFO L224 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-06 19:28:24,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-06 19:28:24,510 INFO L224 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-06 19:28:24,514 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-07-06 19:28:24,583 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 19:28:24,585 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 58 [2021-07-06 19:28:24,958 WARN L205 SmtUtils]: Spent 302.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 84 [2021-07-06 19:28:24,970 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 19:28:24,977 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 140 [2021-07-06 19:28:25,117 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2021-07-06 19:28:25,152 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 06.07 07:28:25 BoogieIcfgContainer [2021-07-06 19:28:25,152 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-07-06 19:28:25,153 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-07-06 19:28:25,153 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-07-06 19:28:25,153 INFO L275 PluginConnector]: Witness Printer initialized [2021-07-06 19:28:25,154 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.07 07:28:23" (3/4) ... [2021-07-06 19:28:25,156 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2021-07-06 19:28:25,203 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-07-06 19:28:25,203 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-07-06 19:28:25,205 INFO L168 Benchmark]: Toolchain (without parser) took 2486.53 ms. Allocated memory was 54.5 MB in the beginning and 86.0 MB in the end (delta: 31.5 MB). Free memory was 30.5 MB in the beginning and 44.0 MB in the end (delta: -13.5 MB). Peak memory consumption was 18.2 MB. Max. memory is 16.1 GB. [2021-07-06 19:28:25,207 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 54.5 MB. Free memory was 35.6 MB in the beginning and 35.6 MB in the end (delta: 39.8 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-07-06 19:28:25,207 INFO L168 Benchmark]: CACSL2BoogieTranslator took 282.48 ms. Allocated memory was 54.5 MB in the beginning and 71.3 MB in the end (delta: 16.8 MB). Free memory was 30.3 MB in the beginning and 52.9 MB in the end (delta: -22.6 MB). Peak memory consumption was 7.6 MB. Max. memory is 16.1 GB. [2021-07-06 19:28:25,207 INFO L168 Benchmark]: Boogie Procedure Inliner took 31.87 ms. Allocated memory is still 71.3 MB. Free memory was 52.8 MB in the beginning and 50.8 MB in the end (delta: 1.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-07-06 19:28:25,208 INFO L168 Benchmark]: Boogie Preprocessor took 22.74 ms. Allocated memory is still 71.3 MB. Free memory was 50.8 MB in the beginning and 49.2 MB in the end (delta: 1.6 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-07-06 19:28:25,208 INFO L168 Benchmark]: RCFGBuilder took 603.83 ms. Allocated memory is still 71.3 MB. Free memory was 49.2 MB in the beginning and 36.2 MB in the end (delta: 13.1 MB). Peak memory consumption was 16.5 MB. Max. memory is 16.1 GB. [2021-07-06 19:28:25,208 INFO L168 Benchmark]: BuchiAutomizer took 1489.87 ms. Allocated memory was 71.3 MB in the beginning and 86.0 MB in the end (delta: 14.7 MB). Free memory was 36.2 MB in the beginning and 46.0 MB in the end (delta: -9.8 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2021-07-06 19:28:25,209 INFO L168 Benchmark]: Witness Printer took 50.21 ms. Allocated memory is still 86.0 MB. Free memory was 46.0 MB in the beginning and 44.0 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-07-06 19:28:25,211 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 54.5 MB. Free memory was 35.6 MB in the beginning and 35.6 MB in the end (delta: 39.8 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 282.48 ms. Allocated memory was 54.5 MB in the beginning and 71.3 MB in the end (delta: 16.8 MB). Free memory was 30.3 MB in the beginning and 52.9 MB in the end (delta: -22.6 MB). Peak memory consumption was 7.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 31.87 ms. Allocated memory is still 71.3 MB. Free memory was 52.8 MB in the beginning and 50.8 MB in the end (delta: 1.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 22.74 ms. Allocated memory is still 71.3 MB. Free memory was 50.8 MB in the beginning and 49.2 MB in the end (delta: 1.6 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 603.83 ms. Allocated memory is still 71.3 MB. Free memory was 49.2 MB in the beginning and 36.2 MB in the end (delta: 13.1 MB). Peak memory consumption was 16.5 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 1489.87 ms. Allocated memory was 71.3 MB in the beginning and 86.0 MB in the end (delta: 14.7 MB). Free memory was 36.2 MB in the beginning and 46.0 MB in the end (delta: -9.8 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. * Witness Printer took 50.21 ms. Allocated memory is still 86.0 MB. Free memory was 46.0 MB in the beginning and 44.0 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 1.4s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 1.2s. 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 11.9ms 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, 28.6ms 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=15538} State at position 1 is {NULL=0, NULL=15538, m_isPowerOfTwo=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6ce3972d=36, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@12d2a983=29, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5ee735cd=33, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@26c54e85=37, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7b642573=27, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@68b9e242=26, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4bf80584=34, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@220b5a3e=35, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@52a1ebad=24, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5538cecb=22, NULL=0, NULL=0, P8=24, P10=33, P6=34, P4=36, P2=32, m_log2=6, m_mod_1=8, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@55fd053f=0, m_factorial_1=10, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@363f6207=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3470e053=0, P14=28, P12=27, P16=25, m_checkedAdd=7, NULL=15541, \result=0, m_checkedSubtract=4, m_checkedMultiply=5, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@12ad9c5e=31, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@231f4d90=32, m_IntMath=2, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@393a1419=21, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7fcd701e=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2fed69b8=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4baef502=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6986416b=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5f0784db=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3ae2702b=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7d5f91c5=0, NULL=15539, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@393b977f=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@50163bf=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5e57e76d=0, NULL=0, P9=22, P7=35, NULL=15540, P5=29, P3=21, P1=31, m_log10=3, m_mod_2=9, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@f97fbc5=28, m_factorial_2=11, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3aa2dd4=23, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@593fcf6f=25, q=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@59813e29=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@47946669=0, P13=26, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@39f36f2b=0, P11=37, method_id=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7e339df8=30, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4eca1828=0, P17=30, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1cdc58a8=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3b3fb8eb=0, P15=23} - 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! [2021-07-06 19:28:25,273 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...