./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 906a4fb5 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.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 0.1.25-906a4fb [2020-10-19 19:08:02,759 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-19 19:08:02,762 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-19 19:08:02,787 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-19 19:08:02,788 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-19 19:08:02,789 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-19 19:08:02,790 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-19 19:08:02,792 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-19 19:08:02,794 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-19 19:08:02,795 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-19 19:08:02,796 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-19 19:08:02,797 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-19 19:08:02,798 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-19 19:08:02,799 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-19 19:08:02,800 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-19 19:08:02,801 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-19 19:08:02,802 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-19 19:08:02,803 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-19 19:08:02,805 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-19 19:08:02,807 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-19 19:08:02,809 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-19 19:08:02,810 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-19 19:08:02,811 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-19 19:08:02,812 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-19 19:08:02,815 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-19 19:08:02,816 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-19 19:08:02,816 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-19 19:08:02,817 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-19 19:08:02,818 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-19 19:08:02,819 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-19 19:08:02,819 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-19 19:08:02,820 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-19 19:08:02,821 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-19 19:08:02,821 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-19 19:08:02,822 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-19 19:08:02,823 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-19 19:08:02,824 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-19 19:08:02,824 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-19 19:08:02,824 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-19 19:08:02,825 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-19 19:08:02,826 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-19 19:08:02,827 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2020-10-19 19:08:02,853 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-19 19:08:02,854 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-19 19:08:02,855 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-19 19:08:02,855 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-19 19:08:02,856 INFO L138 SettingsManager]: * Use SBE=true [2020-10-19 19:08:02,856 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-10-19 19:08:02,856 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-10-19 19:08:02,857 INFO L138 SettingsManager]: * Use old map elimination=false [2020-10-19 19:08:02,857 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-10-19 19:08:02,857 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-10-19 19:08:02,857 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-10-19 19:08:02,858 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-19 19:08:02,858 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-19 19:08:02,858 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-10-19 19:08:02,859 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-19 19:08:02,859 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-19 19:08:02,859 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-19 19:08:02,859 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-10-19 19:08:02,860 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-10-19 19:08:02,860 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-10-19 19:08:02,860 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-19 19:08:02,861 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-19 19:08:02,861 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-10-19 19:08:02,861 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-19 19:08:02,861 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-10-19 19:08:02,862 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-19 19:08:02,862 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-19 19:08:02,862 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-10-19 19:08:02,863 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-19 19:08:02,863 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-19 19:08:02,863 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-19 19:08:02,864 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-10-19 19:08:02,865 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-10-19 19:08:02,865 INFO L138 SettingsManager]: * TransformationType=MODULO_NEIGHBOR 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 [2020-10-19 19:08:03,239 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-19 19:08:03,259 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-19 19:08:03,263 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-19 19:08:03,265 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-19 19:08:03,267 INFO L275 PluginConnector]: CDTParser initialized [2020-10-19 19:08:03,268 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/psyco/psyco_math_1.c [2020-10-19 19:08:03,333 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dada5a8e3/c478ab4f067c493b97717d1bca234050/FLAGe09f4b3e8 [2020-10-19 19:08:03,765 INFO L306 CDTParser]: Found 1 translation units. [2020-10-19 19:08:03,766 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/psyco/psyco_math_1.c [2020-10-19 19:08:03,779 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dada5a8e3/c478ab4f067c493b97717d1bca234050/FLAGe09f4b3e8 [2020-10-19 19:08:04,169 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dada5a8e3/c478ab4f067c493b97717d1bca234050 [2020-10-19 19:08:04,173 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-19 19:08:04,181 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-19 19:08:04,182 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-19 19:08:04,183 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-19 19:08:04,187 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-19 19:08:04,188 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.10 07:08:04" (1/1) ... [2020-10-19 19:08:04,191 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1775d24 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 07:08:04, skipping insertion in model container [2020-10-19 19:08:04,191 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.10 07:08:04" (1/1) ... [2020-10-19 19:08:04,199 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-19 19:08:04,227 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-19 19:08:04,467 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-19 19:08:04,484 INFO L203 MainTranslator]: Completed pre-run [2020-10-19 19:08:04,603 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-19 19:08:04,624 INFO L208 MainTranslator]: Completed translation [2020-10-19 19:08:04,624 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 07:08:04 WrapperNode [2020-10-19 19:08:04,624 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-19 19:08:04,626 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-19 19:08:04,626 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-19 19:08:04,626 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-19 19:08:04,634 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 07:08:04" (1/1) ... [2020-10-19 19:08:04,643 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 07:08:04" (1/1) ... [2020-10-19 19:08:04,673 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-19 19:08:04,674 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-19 19:08:04,674 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-19 19:08:04,674 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-19 19:08:04,685 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 07:08:04" (1/1) ... [2020-10-19 19:08:04,686 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 07:08:04" (1/1) ... [2020-10-19 19:08:04,689 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 07:08:04" (1/1) ... [2020-10-19 19:08:04,689 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 07:08:04" (1/1) ... [2020-10-19 19:08:04,697 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 07:08:04" (1/1) ... [2020-10-19 19:08:04,705 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 07:08:04" (1/1) ... [2020-10-19 19:08:04,707 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 07:08:04" (1/1) ... [2020-10-19 19:08:04,711 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-19 19:08:04,712 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-19 19:08:04,713 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-19 19:08:04,713 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-19 19:08:04,714 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 07:08:04" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 19:08:04,782 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-19 19:08:04,783 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-19 19:08:04,783 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-19 19:08:04,783 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-19 19:08:05,226 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-19 19:08:05,226 INFO L298 CfgBuilder]: Removed 15 assume(true) statements. [2020-10-19 19:08:05,228 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.10 07:08:05 BoogieIcfgContainer [2020-10-19 19:08:05,228 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-19 19:08:05,229 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-10-19 19:08:05,229 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-10-19 19:08:05,233 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-10-19 19:08:05,234 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-10-19 19:08:05,234 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 19.10 07:08:04" (1/3) ... [2020-10-19 19:08:05,236 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@34341680 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 19.10 07:08:05, skipping insertion in model container [2020-10-19 19:08:05,236 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-10-19 19:08:05,236 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 07:08:04" (2/3) ... [2020-10-19 19:08:05,237 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@34341680 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 19.10 07:08:05, skipping insertion in model container [2020-10-19 19:08:05,237 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-10-19 19:08:05,237 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.10 07:08:05" (3/3) ... [2020-10-19 19:08:05,239 INFO L373 chiAutomizerObserver]: Analyzing ICFG psyco_math_1.c [2020-10-19 19:08:05,291 INFO L359 BuchiCegarLoop]: Interprodecural is true [2020-10-19 19:08:05,292 INFO L360 BuchiCegarLoop]: Hoare is false [2020-10-19 19:08:05,292 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-10-19 19:08:05,292 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-19 19:08:05,293 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-19 19:08:05,293 INFO L364 BuchiCegarLoop]: Difference is false [2020-10-19 19:08:05,293 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-19 19:08:05,293 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-10-19 19:08:05,312 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 70 states. [2020-10-19 19:08:05,338 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 54 [2020-10-19 19:08:05,339 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-19 19:08:05,339 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-19 19:08:05,346 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2020-10-19 19:08:05,346 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2020-10-19 19:08:05,346 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2020-10-19 19:08:05,347 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 70 states. [2020-10-19 19:08:05,353 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 54 [2020-10-19 19:08:05,353 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-19 19:08:05,353 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-19 19:08:05,354 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2020-10-19 19:08:05,354 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2020-10-19 19:08:05,362 INFO L794 eck$LassoCheckResult]: Stem: 38#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(15);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);~m_isPowerOfTwo~0 := 1;~m_IntMath~0 := 2;~m_log10~0 := 3;~m_checkedSubtract~0 := 4;~m_checkedMultiply~0 := 5;~m_log2~0 := 6;~m_checkedAdd~0 := 7;~m_mod_1~0 := 8;~m_mod_2~0 := 9;~m_factorial_1~0 := 10;~m_factorial_2~0 := 11; 13#L-1true havoc main_#res;havoc main_#t~nondet7, main_#t~nondet8, main_#t~nondet9, main_#t~nondet10, main_#t~nondet11, main_#t~nondet12, main_#t~nondet13, main_#t~nondet14, main_#t~nondet15, main_#t~nondet16, main_#t~nondet17, main_#t~nondet18, main_#t~nondet19, main_#t~nondet20, main_#t~nondet21, main_#t~nondet22, main_#t~nondet23, main_#t~nondet24, main_#t~nondet25, main_#t~nondet26, main_#t~nondet27, main_#t~nondet28, main_#t~nondet29, main_#t~nondet30, main_#t~nondet31, main_#t~nondet32, main_#t~nondet33, main_#t~nondet34, main_#t~nondet35, main_#t~nondet36, main_#t~nondet37, main_#t~nondet38, main_#t~nondet39, main_#t~nondet40, main_#t~nondet41, main_#t~nondet42, main_~P1~0, main_~P2~0, main_~P3~0, main_~P4~0, main_~P5~0, main_~P6~0, main_~P7~0, main_~P8~0, main_~P9~0, main_~P10~0, main_~P11~0, main_~P12~0, main_~P13~0, main_~P14~0, main_~P15~0, main_~P16~0, main_~P17~0, main_~q~0, main_~method_id~0;main_~q~0 := 0;havoc main_~method_id~0; 60#L28-2true [2020-10-19 19:08:05,363 INFO L796 eck$LassoCheckResult]: Loop: 60#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); 60#L28-2true [2020-10-19 19:08:05,369 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 19:08:05,370 INFO L82 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2020-10-19 19:08:05,377 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 19:08:05,378 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1736747763] [2020-10-19 19:08:05,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 19:08:05,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 19:08:05,480 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 19:08:05,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 19:08:05,501 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 19:08:05,528 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-19 19:08:05,529 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 19:08:05,529 INFO L82 PathProgramCache]: Analyzing trace with hash 34532059, now seen corresponding path program 1 times [2020-10-19 19:08:05,530 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 19:08:05,530 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1935646147] [2020-10-19 19:08:05,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 19:08:05,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 19:08:05,540 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 19:08:05,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 19:08:05,547 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 19:08:05,553 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-19 19:08:05,557 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 19:08:05,558 INFO L82 PathProgramCache]: Analyzing trace with hash 1805971545, now seen corresponding path program 1 times [2020-10-19 19:08:05,558 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 19:08:05,559 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2021243572] [2020-10-19 19:08:05,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 19:08:05,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 19:08:05,656 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 19:08:05,657 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2021243572] [2020-10-19 19:08:05,658 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 19:08:05,658 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-19 19:08:05,659 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1124322029] [2020-10-19 19:08:05,822 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 19:08:05,840 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 19:08:05,841 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 19:08:05,843 INFO L87 Difference]: Start difference. First operand 70 states. Second operand 3 states. [2020-10-19 19:08:05,900 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 19:08:05,900 INFO L93 Difference]: Finished difference Result 68 states and 97 transitions. [2020-10-19 19:08:05,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 19:08:05,903 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 68 states and 97 transitions. [2020-10-19 19:08:05,908 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 49 [2020-10-19 19:08:05,914 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 68 states to 52 states and 74 transitions. [2020-10-19 19:08:05,915 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 52 [2020-10-19 19:08:05,916 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 52 [2020-10-19 19:08:05,917 INFO L73 IsDeterministic]: Start isDeterministic. Operand 52 states and 74 transitions. [2020-10-19 19:08:05,918 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-19 19:08:05,918 INFO L691 BuchiCegarLoop]: Abstraction has 52 states and 74 transitions. [2020-10-19 19:08:05,938 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states and 74 transitions. [2020-10-19 19:08:05,952 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2020-10-19 19:08:05,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2020-10-19 19:08:05,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 74 transitions. [2020-10-19 19:08:05,956 INFO L714 BuchiCegarLoop]: Abstraction has 52 states and 74 transitions. [2020-10-19 19:08:05,956 INFO L594 BuchiCegarLoop]: Abstraction has 52 states and 74 transitions. [2020-10-19 19:08:05,957 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2020-10-19 19:08:05,957 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 52 states and 74 transitions. [2020-10-19 19:08:05,959 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 49 [2020-10-19 19:08:05,959 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-19 19:08:05,959 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-19 19:08:05,960 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2020-10-19 19:08:05,960 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-10-19 19:08:05,960 INFO L794 eck$LassoCheckResult]: Stem: 189#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(15);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);~m_isPowerOfTwo~0 := 1;~m_IntMath~0 := 2;~m_log10~0 := 3;~m_checkedSubtract~0 := 4;~m_checkedMultiply~0 := 5;~m_log2~0 := 6;~m_checkedAdd~0 := 7;~m_mod_1~0 := 8;~m_mod_2~0 := 9;~m_factorial_1~0 := 10;~m_factorial_2~0 := 11; 161#L-1 havoc main_#res;havoc main_#t~nondet7, main_#t~nondet8, main_#t~nondet9, main_#t~nondet10, main_#t~nondet11, main_#t~nondet12, main_#t~nondet13, main_#t~nondet14, main_#t~nondet15, main_#t~nondet16, main_#t~nondet17, main_#t~nondet18, main_#t~nondet19, main_#t~nondet20, main_#t~nondet21, main_#t~nondet22, main_#t~nondet23, main_#t~nondet24, main_#t~nondet25, main_#t~nondet26, main_#t~nondet27, main_#t~nondet28, main_#t~nondet29, main_#t~nondet30, main_#t~nondet31, main_#t~nondet32, main_#t~nondet33, main_#t~nondet34, main_#t~nondet35, main_#t~nondet36, main_#t~nondet37, main_#t~nondet38, main_#t~nondet39, main_#t~nondet40, main_#t~nondet41, main_#t~nondet42, main_~P1~0, main_~P2~0, main_~P3~0, main_~P4~0, main_~P5~0, main_~P6~0, main_~P7~0, main_~P8~0, main_~P9~0, main_~P10~0, main_~P11~0, main_~P12~0, main_~P13~0, main_~P14~0, main_~P15~0, main_~P16~0, main_~P17~0, main_~q~0, main_~method_id~0;main_~q~0 := 0;havoc main_~method_id~0; 162#L28-2 goto; 155#L354 [2020-10-19 19:08:05,961 INFO L796 eck$LassoCheckResult]: Loop: 155#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; 156#L51 assume 0 == main_~q~0; 159#L52 assume !(0 != main_#t~nondet24);havoc main_#t~nondet24; 155#L354 [2020-10-19 19:08:05,961 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 19:08:05,961 INFO L82 PathProgramCache]: Analyzing trace with hash 29859, now seen corresponding path program 1 times [2020-10-19 19:08:05,962 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 19:08:05,962 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1870282800] [2020-10-19 19:08:05,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 19:08:05,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 19:08:05,978 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 19:08:05,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 19:08:05,991 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 19:08:05,998 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-19 19:08:05,999 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 19:08:05,999 INFO L82 PathProgramCache]: Analyzing trace with hash 40826, now seen corresponding path program 1 times [2020-10-19 19:08:06,000 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 19:08:06,000 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [968820284] [2020-10-19 19:08:06,000 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 19:08:06,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 19:08:06,007 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 19:08:06,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 19:08:06,012 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 19:08:06,017 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-19 19:08:06,017 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 19:08:06,018 INFO L82 PathProgramCache]: Analyzing trace with hash 889540504, now seen corresponding path program 1 times [2020-10-19 19:08:06,018 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 19:08:06,018 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2020300045] [2020-10-19 19:08:06,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 19:08:06,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 19:08:06,034 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 19:08:06,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 19:08:06,049 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 19:08:06,060 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-19 19:08:06,479 WARN L193 SmtUtils]: Spent 303.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 84 [2020-10-19 19:08:06,615 WARN L193 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2020-10-19 19:08:06,665 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 19.10 07:08:06 BoogieIcfgContainer [2020-10-19 19:08:06,665 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-10-19 19:08:06,666 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-19 19:08:06,666 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-19 19:08:06,666 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-19 19:08:06,667 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.10 07:08:05" (3/4) ... [2020-10-19 19:08:06,671 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2020-10-19 19:08:06,728 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-10-19 19:08:06,729 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-19 19:08:06,731 INFO L168 Benchmark]: Toolchain (without parser) took 2555.86 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 136.3 MB). Free memory was 958.5 MB in the beginning and 959.3 MB in the end (delta: -756.2 kB). Peak memory consumption was 135.6 MB. Max. memory is 11.5 GB. [2020-10-19 19:08:06,731 INFO L168 Benchmark]: CDTParser took 0.34 ms. Allocated memory is still 1.0 GB. Free memory is still 985.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2020-10-19 19:08:06,732 INFO L168 Benchmark]: CACSL2BoogieTranslator took 442.74 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 136.3 MB). Free memory was 958.5 MB in the beginning and 1.1 GB in the end (delta: -167.1 MB). Peak memory consumption was 27.4 MB. Max. memory is 11.5 GB. [2020-10-19 19:08:06,733 INFO L168 Benchmark]: Boogie Procedure Inliner took 48.17 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2020-10-19 19:08:06,733 INFO L168 Benchmark]: Boogie Preprocessor took 37.97 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2020-10-19 19:08:06,734 INFO L168 Benchmark]: RCFGBuilder took 516.02 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 39.2 MB). Peak memory consumption was 39.2 MB. Max. memory is 11.5 GB. [2020-10-19 19:08:06,735 INFO L168 Benchmark]: BuchiAutomizer took 1436.48 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 965.9 MB in the end (delta: 120.5 MB). Peak memory consumption was 120.5 MB. Max. memory is 11.5 GB. [2020-10-19 19:08:06,735 INFO L168 Benchmark]: Witness Printer took 63.01 ms. Allocated memory is still 1.2 GB. Free memory was 965.9 MB in the beginning and 959.3 MB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. [2020-10-19 19:08:06,739 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34 ms. Allocated memory is still 1.0 GB. Free memory is still 985.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 442.74 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 136.3 MB). Free memory was 958.5 MB in the beginning and 1.1 GB in the end (delta: -167.1 MB). Peak memory consumption was 27.4 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 48.17 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 37.97 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 516.02 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 39.2 MB). Peak memory consumption was 39.2 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 1436.48 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 965.9 MB in the end (delta: 120.5 MB). Peak memory consumption was 120.5 MB. Max. memory is 11.5 GB. * Witness Printer took 63.01 ms. Allocated memory is still 1.2 GB. Free memory was 965.9 MB in the beginning and 959.3 MB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 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 1.3s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 1.1s. Construction of modules took 0.0s. Büchi inclusion checks took 0.0s. Highest rank in rank-based complementation 0. Minimization of det autom 1. Minimization of nondet autom 0. Automata minimization 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: 93 SDtfs, 4 SDslu, 68 SDs, 0 SdLazy, 22 SolverSat, 1 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s 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=3578} State at position 1 is {NULL=0, NULL=3578, m_isPowerOfTwo=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2bc9b4ad=37, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3a85dc1=25, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1e243dcb=33, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@257fcfba=26, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2d4c3bd6=23, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5c293461=27, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2e78baf5=30, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@526d31a4=24, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@34679b98=34, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@75609e80=22, NULL=0, NULL=0, P8=34, P10=33, P6=30, P4=37, P2=32, m_log2=6, m_mod_1=8, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@23c04172=0, m_factorial_1=10, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6f946d7=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@22f75661=0, P14=21, P12=23, P16=36, m_checkedAdd=7, NULL=3581, \result=0, m_checkedSubtract=4, m_checkedMultiply=5, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@96425b0=28, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@53efc25b=32, m_IntMath=2, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4996aff9=31, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5626523f=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@42aba48a=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@221c40d6=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@724a34e2=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@35620fc2=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@76dc323b=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1699273e=0, NULL=3580, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@9095e93=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@49d3b594=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6a1d6568=0, NULL=0, P9=22, P7=24, NULL=3579, P5=25, P3=31, P1=28, m_log10=3, m_mod_2=9, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@63dc804a=21, m_factorial_2=11, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@38858194=35, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@745b8fd9=36, q=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1ab1c514=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@158eab32=0, P13=27, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@63f67e01=0, P11=26, method_id=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6144270f=29, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@669d25bd=0, P17=29, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@728081db=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5a8dfd15=0, P15=35} - 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! Received shutdown request...