./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 ae007674 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-dev-ae00767 [2021-12-28 09:26:30,556 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-28 09:26:30,557 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-28 09:26:30,598 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-28 09:26:30,598 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-28 09:26:30,601 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-28 09:26:30,604 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-28 09:26:30,608 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-28 09:26:30,610 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-28 09:26:30,615 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-28 09:26:30,616 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-28 09:26:30,619 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-28 09:26:30,620 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-28 09:26:30,621 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-28 09:26:30,623 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-28 09:26:30,624 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-28 09:26:30,625 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-28 09:26:30,626 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-28 09:26:30,629 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-28 09:26:30,633 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-28 09:26:30,634 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-28 09:26:30,635 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-28 09:26:30,636 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-28 09:26:30,638 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-28 09:26:30,642 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-28 09:26:30,642 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-28 09:26:30,643 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-28 09:26:30,643 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-28 09:26:30,644 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-28 09:26:30,644 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-28 09:26:30,644 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-28 09:26:30,645 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-28 09:26:30,645 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-28 09:26:30,646 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-28 09:26:30,647 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-28 09:26:30,647 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-28 09:26:30,647 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-28 09:26:30,647 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-28 09:26:30,648 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-28 09:26:30,648 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-28 09:26:30,649 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-28 09:26:30,650 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-12-28 09:26:30,681 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-28 09:26:30,682 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-28 09:26:30,683 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-28 09:26:30,683 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-28 09:26:30,685 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-28 09:26:30,685 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-28 09:26:30,686 INFO L138 SettingsManager]: * Use SBE=true [2021-12-28 09:26:30,686 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-12-28 09:26:30,686 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-12-28 09:26:30,686 INFO L138 SettingsManager]: * Use old map elimination=false [2021-12-28 09:26:30,687 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-12-28 09:26:30,687 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-12-28 09:26:30,687 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-12-28 09:26:30,688 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-28 09:26:30,688 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-28 09:26:30,688 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-12-28 09:26:30,688 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-28 09:26:30,688 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-28 09:26:30,689 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-28 09:26:30,689 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-12-28 09:26:30,689 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-12-28 09:26:30,689 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-12-28 09:26:30,689 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-28 09:26:30,689 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-28 09:26:30,690 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-12-28 09:26:30,690 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-28 09:26:30,690 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-12-28 09:26:30,690 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-28 09:26:30,691 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-28 09:26:30,691 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-28 09:26:30,691 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-28 09:26:30,693 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-12-28 09:26:30,693 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 63c09076012948d358ef22d7f5bfd1d18463c56506eb9759740cc4520130fa60 [2021-12-28 09:26:31,018 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-28 09:26:31,039 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-28 09:26:31,043 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-28 09:26:31,044 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-28 09:26:31,045 INFO L275 PluginConnector]: CDTParser initialized [2021-12-28 09:26:31,046 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/psyco/psyco_math_1.c [2021-12-28 09:26:31,108 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/431bb89df/d1bd5a304cd5481fac99a34bc3b08fe0/FLAG8f7ddbb74 [2021-12-28 09:26:31,553 INFO L306 CDTParser]: Found 1 translation units. [2021-12-28 09:26:31,562 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/psyco/psyco_math_1.c [2021-12-28 09:26:31,587 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/431bb89df/d1bd5a304cd5481fac99a34bc3b08fe0/FLAG8f7ddbb74 [2021-12-28 09:26:31,946 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/431bb89df/d1bd5a304cd5481fac99a34bc3b08fe0 [2021-12-28 09:26:31,950 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-28 09:26:31,952 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-28 09:26:31,955 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-28 09:26:31,955 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-28 09:26:31,958 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-28 09:26:31,959 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.12 09:26:31" (1/1) ... [2021-12-28 09:26:31,960 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4e882bc7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 09:26:31, skipping insertion in model container [2021-12-28 09:26:31,960 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.12 09:26:31" (1/1) ... [2021-12-28 09:26:31,969 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-28 09:26:32,007 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-28 09:26:32,177 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] [2021-12-28 09:26:32,185 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-28 09:26:32,194 INFO L203 MainTranslator]: Completed pre-run [2021-12-28 09:26:32,273 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] [2021-12-28 09:26:32,274 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-28 09:26:32,291 INFO L208 MainTranslator]: Completed translation [2021-12-28 09:26:32,292 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 09:26:32 WrapperNode [2021-12-28 09:26:32,292 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-28 09:26:32,294 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-28 09:26:32,294 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-28 09:26:32,295 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-28 09:26:32,300 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 09:26:32" (1/1) ... [2021-12-28 09:26:32,319 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 09:26:32" (1/1) ... [2021-12-28 09:26:32,353 INFO L137 Inliner]: procedures = 12, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 251 [2021-12-28 09:26:32,353 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-28 09:26:32,354 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-28 09:26:32,355 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-28 09:26:32,355 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-28 09:26:32,362 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 09:26:32" (1/1) ... [2021-12-28 09:26:32,362 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 09:26:32" (1/1) ... [2021-12-28 09:26:32,374 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 09:26:32" (1/1) ... [2021-12-28 09:26:32,374 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 09:26:32" (1/1) ... [2021-12-28 09:26:32,382 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 09:26:32" (1/1) ... [2021-12-28 09:26:32,395 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 09:26:32" (1/1) ... [2021-12-28 09:26:32,399 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 09:26:32" (1/1) ... [2021-12-28 09:26:32,404 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-28 09:26:32,407 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-28 09:26:32,407 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-28 09:26:32,408 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-28 09:26:32,408 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 09:26:32" (1/1) ... [2021-12-28 09:26:32,415 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-28 09:26:32,425 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 09:26:32,449 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) [2021-12-28 09:26:32,462 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 [2021-12-28 09:26:32,489 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-28 09:26:32,489 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-28 09:26:32,489 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-28 09:26:32,490 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-28 09:26:32,583 INFO L234 CfgBuilder]: Building ICFG [2021-12-28 09:26:32,585 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-28 09:26:32,811 INFO L275 CfgBuilder]: Performing block encoding [2021-12-28 09:26:32,817 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-28 09:26:32,817 INFO L299 CfgBuilder]: Removed 9 assume(true) statements. [2021-12-28 09:26:32,819 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.12 09:26:32 BoogieIcfgContainer [2021-12-28 09:26:32,819 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-28 09:26:32,820 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-12-28 09:26:32,820 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-12-28 09:26:32,823 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-12-28 09:26:32,823 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-28 09:26:32,823 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.12 09:26:31" (1/3) ... [2021-12-28 09:26:32,824 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@364a56ba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.12 09:26:32, skipping insertion in model container [2021-12-28 09:26:32,824 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-28 09:26:32,825 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 09:26:32" (2/3) ... [2021-12-28 09:26:32,825 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@364a56ba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.12 09:26:32, skipping insertion in model container [2021-12-28 09:26:32,825 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-28 09:26:32,825 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.12 09:26:32" (3/3) ... [2021-12-28 09:26:32,826 INFO L388 chiAutomizerObserver]: Analyzing ICFG psyco_math_1.c [2021-12-28 09:26:32,877 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-12-28 09:26:32,877 INFO L360 BuchiCegarLoop]: Hoare is false [2021-12-28 09:26:32,877 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-12-28 09:26:32,877 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-12-28 09:26:32,877 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-12-28 09:26:32,878 INFO L364 BuchiCegarLoop]: Difference is false [2021-12-28 09:26:32,878 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-12-28 09:26:32,878 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-12-28 09:26:32,894 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) [2021-12-28 09:26:32,921 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 54 [2021-12-28 09:26:32,922 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-28 09:26:32,922 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-28 09:26:32,928 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-12-28 09:26:32,928 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2021-12-28 09:26:32,929 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-12-28 09:26:32,929 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) [2021-12-28 09:26:32,936 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 54 [2021-12-28 09:26:32,937 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-28 09:26:32,938 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-28 09:26:32,938 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-12-28 09:26:32,939 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2021-12-28 09:26:32,944 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 [2021-12-28 09:26:32,945 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 [2021-12-28 09:26:32,950 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 09:26:32,950 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2021-12-28 09:26:32,957 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 09:26:32,957 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [388420946] [2021-12-28 09:26:32,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 09:26:32,958 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 09:26:33,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-28 09:26:33,043 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-28 09:26:33,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-28 09:26:33,082 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-28 09:26:33,085 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 09:26:33,086 INFO L85 PathProgramCache]: Analyzing trace with hash 34532059, now seen corresponding path program 1 times [2021-12-28 09:26:33,086 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 09:26:33,088 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1382778978] [2021-12-28 09:26:33,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 09:26:33,089 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 09:26:33,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-28 09:26:33,116 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-28 09:26:33,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-28 09:26:33,131 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-28 09:26:33,135 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 09:26:33,135 INFO L85 PathProgramCache]: Analyzing trace with hash 1805971545, now seen corresponding path program 1 times [2021-12-28 09:26:33,136 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 09:26:33,136 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [117497837] [2021-12-28 09:26:33,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 09:26:33,136 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 09:26:33,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 09:26:33,232 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-28 09:26:33,233 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 09:26:33,233 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [117497837] [2021-12-28 09:26:33,233 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [117497837] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 09:26:33,234 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 09:26:33,234 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-28 09:26:33,234 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1028045972] [2021-12-28 09:26:33,235 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 09:26:33,489 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 09:26:33,535 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-28 09:26:33,536 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-28 09:26:33,538 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) [2021-12-28 09:26:33,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 09:26:33,629 INFO L93 Difference]: Finished difference Result 68 states and 97 transitions. [2021-12-28 09:26:33,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-28 09:26:33,635 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 68 states and 97 transitions. [2021-12-28 09:26:33,640 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 49 [2021-12-28 09:26:33,645 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 68 states to 52 states and 74 transitions. [2021-12-28 09:26:33,646 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 52 [2021-12-28 09:26:33,646 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 52 [2021-12-28 09:26:33,647 INFO L73 IsDeterministic]: Start isDeterministic. Operand 52 states and 74 transitions. [2021-12-28 09:26:33,647 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-28 09:26:33,648 INFO L681 BuchiCegarLoop]: Abstraction has 52 states and 74 transitions. [2021-12-28 09:26:33,662 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states and 74 transitions. [2021-12-28 09:26:33,676 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2021-12-28 09:26:33,678 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) [2021-12-28 09:26:33,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 74 transitions. [2021-12-28 09:26:33,682 INFO L704 BuchiCegarLoop]: Abstraction has 52 states and 74 transitions. [2021-12-28 09:26:33,683 INFO L587 BuchiCegarLoop]: Abstraction has 52 states and 74 transitions. [2021-12-28 09:26:33,683 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-12-28 09:26:33,683 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 52 states and 74 transitions. [2021-12-28 09:26:33,688 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 49 [2021-12-28 09:26:33,689 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-28 09:26:33,691 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-28 09:26:33,691 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2021-12-28 09:26:33,691 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-12-28 09:26:33,691 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 [2021-12-28 09:26:33,692 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 [2021-12-28 09:26:33,696 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 09:26:33,697 INFO L85 PathProgramCache]: Analyzing trace with hash 29859, now seen corresponding path program 1 times [2021-12-28 09:26:33,697 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 09:26:33,697 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [120250972] [2021-12-28 09:26:33,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 09:26:33,698 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 09:26:33,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-28 09:26:33,723 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-28 09:26:33,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-28 09:26:33,741 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-28 09:26:33,744 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 09:26:33,744 INFO L85 PathProgramCache]: Analyzing trace with hash 40826, now seen corresponding path program 1 times [2021-12-28 09:26:33,746 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 09:26:33,746 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1126996345] [2021-12-28 09:26:33,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 09:26:33,746 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 09:26:33,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-28 09:26:33,757 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-28 09:26:33,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-28 09:26:33,774 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-28 09:26:33,777 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 09:26:33,777 INFO L85 PathProgramCache]: Analyzing trace with hash 889540504, now seen corresponding path program 1 times [2021-12-28 09:26:33,778 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 09:26:33,778 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1334498191] [2021-12-28 09:26:33,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 09:26:33,778 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 09:26:33,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-28 09:26:33,796 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-28 09:26:33,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-28 09:26:33,818 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-28 09:26:34,251 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.12 09:26:34 BoogieIcfgContainer [2021-12-28 09:26:34,251 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-12-28 09:26:34,253 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-28 09:26:34,253 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-28 09:26:34,253 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-28 09:26:34,254 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.12 09:26:32" (3/4) ... [2021-12-28 09:26:34,256 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2021-12-28 09:26:34,304 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-12-28 09:26:34,309 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-28 09:26:34,311 INFO L158 Benchmark]: Toolchain (without parser) took 2357.76ms. Allocated memory was 54.5MB in the beginning and 67.1MB in the end (delta: 12.6MB). Free memory was 31.9MB in the beginning and 34.5MB in the end (delta: -2.6MB). Peak memory consumption was 9.7MB. Max. memory is 16.1GB. [2021-12-28 09:26:34,311 INFO L158 Benchmark]: CDTParser took 0.22ms. Allocated memory is still 54.5MB. Free memory was 37.1MB in the beginning and 37.0MB in the end (delta: 37.1kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-28 09:26:34,312 INFO L158 Benchmark]: CACSL2BoogieTranslator took 338.31ms. Allocated memory was 54.5MB in the beginning and 67.1MB in the end (delta: 12.6MB). Free memory was 31.7MB in the beginning and 49.5MB in the end (delta: -17.8MB). Peak memory consumption was 7.4MB. Max. memory is 16.1GB. [2021-12-28 09:26:34,312 INFO L158 Benchmark]: Boogie Procedure Inliner took 59.34ms. Allocated memory is still 67.1MB. Free memory was 49.4MB in the beginning and 47.3MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-28 09:26:34,312 INFO L158 Benchmark]: Boogie Preprocessor took 52.04ms. Allocated memory is still 67.1MB. Free memory was 47.3MB in the beginning and 45.9MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-28 09:26:34,313 INFO L158 Benchmark]: RCFGBuilder took 412.23ms. Allocated memory is still 67.1MB. Free memory was 45.7MB in the beginning and 46.4MB in the end (delta: -696.9kB). Peak memory consumption was 16.5MB. Max. memory is 16.1GB. [2021-12-28 09:26:34,313 INFO L158 Benchmark]: BuchiAutomizer took 1431.03ms. Allocated memory is still 67.1MB. Free memory was 46.4MB in the beginning and 36.6MB in the end (delta: 9.8MB). Peak memory consumption was 22.3MB. Max. memory is 16.1GB. [2021-12-28 09:26:34,313 INFO L158 Benchmark]: Witness Printer took 56.47ms. Allocated memory is still 67.1MB. Free memory was 36.6MB in the beginning and 34.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-28 09:26:34,317 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22ms. Allocated memory is still 54.5MB. Free memory was 37.1MB in the beginning and 37.0MB in the end (delta: 37.1kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 338.31ms. Allocated memory was 54.5MB in the beginning and 67.1MB in the end (delta: 12.6MB). Free memory was 31.7MB in the beginning and 49.5MB in the end (delta: -17.8MB). Peak memory consumption was 7.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 59.34ms. Allocated memory is still 67.1MB. Free memory was 49.4MB in the beginning and 47.3MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 52.04ms. Allocated memory is still 67.1MB. Free memory was 47.3MB in the beginning and 45.9MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 412.23ms. Allocated memory is still 67.1MB. Free memory was 45.7MB in the beginning and 46.4MB in the end (delta: -696.9kB). Peak memory consumption was 16.5MB. Max. memory is 16.1GB. * BuchiAutomizer took 1431.03ms. Allocated memory is still 67.1MB. Free memory was 46.4MB in the beginning and 36.6MB in the end (delta: 9.8MB). Peak memory consumption was 22.3MB. Max. memory is 16.1GB. * Witness Printer took 56.47ms. Allocated memory is still 67.1MB. Free memory was 36.6MB in the beginning and 34.5MB in the end (delta: 2.1MB). 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 1.3s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 1.0s. Construction of modules took 0.0s. Büchi inclusion checks took 0.1s. 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, 0.1s 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=17, NULL=0, P5=24, NULL=1, P15=16, m_isPowerOfTwo=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@49bfc486=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1c02b60d=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@55cc7efb=19, P4=18, P17=19, method_id=0, P3=27, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2b33d7d8=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@71f19804=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4a51176a=28, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6ce70c91=18, q=0, P2=28, \result=0, P13=29, m_log2=6, m_mod_1=8, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4bb2e385=21, m_factorial_1=10, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@34471bff=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2d5bf767=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4ce0d127=13, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@79c44456=0, P1=23, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5e57b090=17, P14=25, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7634cb19=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@8c98aad=25, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@27291cdd=30, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4540ec4f=0, m_checkedAdd=7, P9=26, P10=21, m_checkedSubtract=4, m_checkedMultiply=5, m_IntMath=2, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7fb2562d=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@11140a0d=0, P8=13, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@488cd7b=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1c1fbb29=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@560a5772=22, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@784aebde=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@ea81b7c=27, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@14a2e8cb=24, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3699c492=23, P12=30, m_log10=3, P7=20, m_mod_2=9, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4f879cc0=26, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@37d2c51d=0, m_factorial_2=11, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6ffa14a2=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1837c534=20, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@18e37eb4=0, P11=14, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@31f79d87=16, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@576f02ef=0, P6=22, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@543be564=29, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6d8a81a2=14, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7a20bf41=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! [2021-12-28 09:26:34,372 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)