./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 9a8b2e8d 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_1.3.100.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 0.1.25-9a8b2e8 [2020-10-20 07:01:13,883 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-20 07:01:13,885 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-20 07:01:13,912 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-20 07:01:13,912 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-20 07:01:13,914 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-20 07:01:13,915 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-20 07:01:13,917 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-20 07:01:13,919 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-20 07:01:13,920 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-20 07:01:13,922 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-20 07:01:13,923 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-20 07:01:13,923 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-20 07:01:13,925 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-20 07:01:13,926 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-20 07:01:13,927 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-20 07:01:13,938 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-20 07:01:13,939 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-20 07:01:13,941 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-20 07:01:13,943 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-20 07:01:13,945 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-20 07:01:13,946 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-20 07:01:13,947 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-20 07:01:13,948 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-20 07:01:13,951 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-20 07:01:13,952 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-20 07:01:13,952 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-20 07:01:13,953 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-20 07:01:13,953 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-20 07:01:13,954 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-20 07:01:13,955 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-20 07:01:13,955 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-20 07:01:13,956 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-20 07:01:13,957 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-20 07:01:13,958 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-20 07:01:13,958 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-20 07:01:13,959 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-20 07:01:13,959 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-20 07:01:13,960 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-20 07:01:13,961 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-20 07:01:13,961 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-20 07:01:13,962 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2020-10-20 07:01:14,004 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-20 07:01:14,006 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-20 07:01:14,007 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-20 07:01:14,009 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-20 07:01:14,009 INFO L138 SettingsManager]: * Use SBE=true [2020-10-20 07:01:14,010 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-10-20 07:01:14,012 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-10-20 07:01:14,012 INFO L138 SettingsManager]: * Use old map elimination=false [2020-10-20 07:01:14,013 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-10-20 07:01:14,013 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-10-20 07:01:14,013 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-10-20 07:01:14,013 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-20 07:01:14,014 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-20 07:01:14,014 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-10-20 07:01:14,014 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-20 07:01:14,015 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-20 07:01:14,015 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-20 07:01:14,015 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-10-20 07:01:14,017 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-10-20 07:01:14,017 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-10-20 07:01:14,017 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-20 07:01:14,018 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-20 07:01:14,018 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-10-20 07:01:14,018 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-20 07:01:14,018 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-10-20 07:01:14,019 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-20 07:01:14,020 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-20 07:01:14,020 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-10-20 07:01:14,021 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-20 07:01:14,021 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-20 07:01:14,022 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-20 07:01:14,022 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-10-20 07:01:14,023 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-10-20 07:01:14,023 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 [2020-10-20 07:01:14,278 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-20 07:01:14,291 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-20 07:01:14,295 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-20 07:01:14,302 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-20 07:01:14,303 INFO L275 PluginConnector]: CDTParser initialized [2020-10-20 07:01:14,304 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/psyco/psyco_math_1.c [2020-10-20 07:01:14,369 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/72096a365/4f8a2d5d5af8461796f61fb991015904/FLAG3c1aa1107 [2020-10-20 07:01:14,840 INFO L306 CDTParser]: Found 1 translation units. [2020-10-20 07:01:14,841 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/psyco/psyco_math_1.c [2020-10-20 07:01:14,852 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/72096a365/4f8a2d5d5af8461796f61fb991015904/FLAG3c1aa1107 [2020-10-20 07:01:15,210 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/72096a365/4f8a2d5d5af8461796f61fb991015904 [2020-10-20 07:01:15,215 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-20 07:01:15,224 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-20 07:01:15,229 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-20 07:01:15,229 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-20 07:01:15,233 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-20 07:01:15,234 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 07:01:15" (1/1) ... [2020-10-20 07:01:15,238 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5cfd6205 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 07:01:15, skipping insertion in model container [2020-10-20 07:01:15,238 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 07:01:15" (1/1) ... [2020-10-20 07:01:15,247 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-20 07:01:15,279 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-20 07:01:15,517 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 07:01:15,529 INFO L203 MainTranslator]: Completed pre-run [2020-10-20 07:01:15,566 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 07:01:15,587 INFO L208 MainTranslator]: Completed translation [2020-10-20 07:01:15,588 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 07:01:15 WrapperNode [2020-10-20 07:01:15,588 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-20 07:01:15,589 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-20 07:01:15,589 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-20 07:01:15,589 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-20 07:01:15,599 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 07:01:15" (1/1) ... [2020-10-20 07:01:15,610 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 07:01:15" (1/1) ... [2020-10-20 07:01:15,647 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-20 07:01:15,648 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-20 07:01:15,648 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-20 07:01:15,648 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-20 07:01:15,658 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 07:01:15" (1/1) ... [2020-10-20 07:01:15,659 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 07:01:15" (1/1) ... [2020-10-20 07:01:15,671 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 07:01:15" (1/1) ... [2020-10-20 07:01:15,673 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 07:01:15" (1/1) ... [2020-10-20 07:01:15,690 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 07:01:15" (1/1) ... [2020-10-20 07:01:15,705 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 07:01:15" (1/1) ... [2020-10-20 07:01:15,710 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 07:01:15" (1/1) ... [2020-10-20 07:01:15,724 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-20 07:01:15,727 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-20 07:01:15,727 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-20 07:01:15,727 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-20 07:01:15,731 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 07:01:15" (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 [2020-10-20 07:01:15,808 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-20 07:01:15,809 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-20 07:01:15,809 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-20 07:01:15,809 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-20 07:01:16,319 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-20 07:01:16,320 INFO L298 CfgBuilder]: Removed 15 assume(true) statements. [2020-10-20 07:01:16,322 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 07:01:16 BoogieIcfgContainer [2020-10-20 07:01:16,322 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-20 07:01:16,323 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-10-20 07:01:16,323 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-10-20 07:01:16,327 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-10-20 07:01:16,328 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-10-20 07:01:16,328 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 20.10 07:01:15" (1/3) ... [2020-10-20 07:01:16,329 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@460e8551 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 20.10 07:01:16, skipping insertion in model container [2020-10-20 07:01:16,330 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-10-20 07:01:16,330 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 07:01:15" (2/3) ... [2020-10-20 07:01:16,330 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@460e8551 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 20.10 07:01:16, skipping insertion in model container [2020-10-20 07:01:16,331 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-10-20 07:01:16,331 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 07:01:16" (3/3) ... [2020-10-20 07:01:16,333 INFO L373 chiAutomizerObserver]: Analyzing ICFG psyco_math_1.c [2020-10-20 07:01:16,384 INFO L359 BuchiCegarLoop]: Interprodecural is true [2020-10-20 07:01:16,384 INFO L360 BuchiCegarLoop]: Hoare is false [2020-10-20 07:01:16,384 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-10-20 07:01:16,384 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-20 07:01:16,384 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-20 07:01:16,385 INFO L364 BuchiCegarLoop]: Difference is false [2020-10-20 07:01:16,385 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-20 07:01:16,385 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-10-20 07:01:16,401 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 70 states. [2020-10-20 07:01:16,428 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 54 [2020-10-20 07:01:16,429 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-20 07:01:16,429 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-20 07:01:16,438 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2020-10-20 07:01:16,438 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2020-10-20 07:01:16,439 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2020-10-20 07:01:16,439 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 70 states. [2020-10-20 07:01:16,444 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 54 [2020-10-20 07:01:16,445 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-20 07:01:16,445 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-20 07:01:16,446 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2020-10-20 07:01:16,446 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2020-10-20 07:01:16,454 INFO L794 eck$LassoCheckResult]: Stem: 38#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(15);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);~m_isPowerOfTwo~0 := 1;~m_IntMath~0 := 2;~m_log10~0 := 3;~m_checkedSubtract~0 := 4;~m_checkedMultiply~0 := 5;~m_log2~0 := 6;~m_checkedAdd~0 := 7;~m_mod_1~0 := 8;~m_mod_2~0 := 9;~m_factorial_1~0 := 10;~m_factorial_2~0 := 11; 13#L-1true havoc main_#res;havoc main_#t~nondet7, main_#t~nondet8, main_#t~nondet9, main_#t~nondet10, main_#t~nondet11, main_#t~nondet12, main_#t~nondet13, main_#t~nondet14, main_#t~nondet15, main_#t~nondet16, main_#t~nondet17, main_#t~nondet18, main_#t~nondet19, main_#t~nondet20, main_#t~nondet21, main_#t~nondet22, main_#t~nondet23, main_#t~nondet24, main_#t~nondet25, main_#t~nondet26, main_#t~nondet27, main_#t~nondet28, main_#t~nondet29, main_#t~nondet30, main_#t~nondet31, main_#t~nondet32, main_#t~nondet33, main_#t~nondet34, main_#t~nondet35, main_#t~nondet36, main_#t~nondet37, main_#t~nondet38, main_#t~nondet39, main_#t~nondet40, main_#t~nondet41, main_#t~nondet42, main_~P1~0, main_~P2~0, main_~P3~0, main_~P4~0, main_~P5~0, main_~P6~0, main_~P7~0, main_~P8~0, main_~P9~0, main_~P10~0, main_~P11~0, main_~P12~0, main_~P13~0, main_~P14~0, main_~P15~0, main_~P16~0, main_~P17~0, main_~q~0, main_~method_id~0;main_~q~0 := 0;havoc main_~method_id~0; 60#L28-2true [2020-10-20 07:01:16,455 INFO L796 eck$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 [2020-10-20 07:01:16,461 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 07:01:16,462 INFO L82 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2020-10-20 07:01:16,470 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 07:01:16,470 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1116473614] [2020-10-20 07:01:16,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 07:01:16,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 07:01:16,584 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 07:01:16,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 07:01:16,612 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 07:01:16,637 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 07:01:16,639 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 07:01:16,639 INFO L82 PathProgramCache]: Analyzing trace with hash 34532059, now seen corresponding path program 1 times [2020-10-20 07:01:16,639 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 07:01:16,640 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1423637048] [2020-10-20 07:01:16,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 07:01:16,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 07:01:16,649 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 07:01:16,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 07:01:16,660 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 07:01:16,666 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 07:01:16,668 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 07:01:16,668 INFO L82 PathProgramCache]: Analyzing trace with hash 1805971545, now seen corresponding path program 1 times [2020-10-20 07:01:16,668 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 07:01:16,669 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1091635617] [2020-10-20 07:01:16,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 07:01:16,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 07:01:16,764 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 07:01:16,764 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1091635617] [2020-10-20 07:01:16,765 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 07:01:16,766 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-20 07:01:16,766 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1602778421] [2020-10-20 07:01:16,917 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 07:01:16,933 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-20 07:01:16,934 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-20 07:01:16,936 INFO L87 Difference]: Start difference. First operand 70 states. Second operand 3 states. [2020-10-20 07:01:16,990 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 07:01:16,990 INFO L93 Difference]: Finished difference Result 68 states and 97 transitions. [2020-10-20 07:01:16,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-20 07:01:16,992 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 68 states and 97 transitions. [2020-10-20 07:01:16,996 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 49 [2020-10-20 07:01:17,002 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 68 states to 52 states and 74 transitions. [2020-10-20 07:01:17,003 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 52 [2020-10-20 07:01:17,004 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 52 [2020-10-20 07:01:17,005 INFO L73 IsDeterministic]: Start isDeterministic. Operand 52 states and 74 transitions. [2020-10-20 07:01:17,006 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-20 07:01:17,006 INFO L691 BuchiCegarLoop]: Abstraction has 52 states and 74 transitions. [2020-10-20 07:01:17,019 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states and 74 transitions. [2020-10-20 07:01:17,031 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2020-10-20 07:01:17,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2020-10-20 07:01:17,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 74 transitions. [2020-10-20 07:01:17,034 INFO L714 BuchiCegarLoop]: Abstraction has 52 states and 74 transitions. [2020-10-20 07:01:17,034 INFO L594 BuchiCegarLoop]: Abstraction has 52 states and 74 transitions. [2020-10-20 07:01:17,034 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2020-10-20 07:01:17,035 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 52 states and 74 transitions. [2020-10-20 07:01:17,036 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 49 [2020-10-20 07:01:17,036 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-20 07:01:17,036 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-20 07:01:17,037 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2020-10-20 07:01:17,037 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-10-20 07:01:17,037 INFO L794 eck$LassoCheckResult]: Stem: 189#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(15);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);~m_isPowerOfTwo~0 := 1;~m_IntMath~0 := 2;~m_log10~0 := 3;~m_checkedSubtract~0 := 4;~m_checkedMultiply~0 := 5;~m_log2~0 := 6;~m_checkedAdd~0 := 7;~m_mod_1~0 := 8;~m_mod_2~0 := 9;~m_factorial_1~0 := 10;~m_factorial_2~0 := 11; 161#L-1 havoc main_#res;havoc main_#t~nondet7, main_#t~nondet8, main_#t~nondet9, main_#t~nondet10, main_#t~nondet11, main_#t~nondet12, main_#t~nondet13, main_#t~nondet14, main_#t~nondet15, main_#t~nondet16, main_#t~nondet17, main_#t~nondet18, main_#t~nondet19, main_#t~nondet20, main_#t~nondet21, main_#t~nondet22, main_#t~nondet23, main_#t~nondet24, main_#t~nondet25, main_#t~nondet26, main_#t~nondet27, main_#t~nondet28, main_#t~nondet29, main_#t~nondet30, main_#t~nondet31, main_#t~nondet32, main_#t~nondet33, main_#t~nondet34, main_#t~nondet35, main_#t~nondet36, main_#t~nondet37, main_#t~nondet38, main_#t~nondet39, main_#t~nondet40, main_#t~nondet41, main_#t~nondet42, main_~P1~0, main_~P2~0, main_~P3~0, main_~P4~0, main_~P5~0, main_~P6~0, main_~P7~0, main_~P8~0, main_~P9~0, main_~P10~0, main_~P11~0, main_~P12~0, main_~P13~0, main_~P14~0, main_~P15~0, main_~P16~0, main_~P17~0, main_~q~0, main_~method_id~0;main_~q~0 := 0;havoc main_~method_id~0; 162#L28-2 goto; 155#L354 [2020-10-20 07:01:17,037 INFO L796 eck$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 [2020-10-20 07:01:17,038 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 07:01:17,038 INFO L82 PathProgramCache]: Analyzing trace with hash 29859, now seen corresponding path program 1 times [2020-10-20 07:01:17,038 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 07:01:17,038 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1086549599] [2020-10-20 07:01:17,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 07:01:17,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 07:01:17,053 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 07:01:17,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 07:01:17,071 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 07:01:17,083 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 07:01:17,084 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 07:01:17,085 INFO L82 PathProgramCache]: Analyzing trace with hash 40826, now seen corresponding path program 1 times [2020-10-20 07:01:17,085 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 07:01:17,085 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2022511512] [2020-10-20 07:01:17,085 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 07:01:17,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 07:01:17,102 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 07:01:17,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 07:01:17,124 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 07:01:17,133 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 07:01:17,134 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 07:01:17,134 INFO L82 PathProgramCache]: Analyzing trace with hash 889540504, now seen corresponding path program 1 times [2020-10-20 07:01:17,134 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 07:01:17,134 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1363613971] [2020-10-20 07:01:17,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 07:01:17,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 07:01:17,168 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 07:01:17,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 07:01:17,190 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 07:01:17,198 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 07:01:17,605 WARN L193 SmtUtils]: Spent 280.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 84 [2020-10-20 07:01:17,733 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2020-10-20 07:01:17,790 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 20.10 07:01:17 BoogieIcfgContainer [2020-10-20 07:01:17,791 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-10-20 07:01:17,793 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-20 07:01:17,793 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-20 07:01:17,794 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-20 07:01:17,795 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 07:01:16" (3/4) ... [2020-10-20 07:01:17,799 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2020-10-20 07:01:17,913 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-10-20 07:01:17,913 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-20 07:01:17,917 INFO L168 Benchmark]: Toolchain (without parser) took 2698.59 ms. Allocated memory was 40.9 MB in the beginning and 56.6 MB in the end (delta: 15.7 MB). Free memory was 18.3 MB in the beginning and 29.7 MB in the end (delta: -11.4 MB). Peak memory consumption was 4.3 MB. Max. memory is 14.3 GB. [2020-10-20 07:01:17,919 INFO L168 Benchmark]: CDTParser took 0.35 ms. Allocated memory is still 31.5 MB. Free memory was 17.6 MB in the beginning and 17.6 MB in the end (delta: 32.3 kB). Peak memory consumption was 32.3 kB. Max. memory is 14.3 GB. [2020-10-20 07:01:17,923 INFO L168 Benchmark]: CACSL2BoogieTranslator took 359.74 ms. Allocated memory was 40.9 MB in the beginning and 41.9 MB in the end (delta: 1.0 MB). Free memory was 17.4 MB in the beginning and 14.3 MB in the end (delta: 3.1 MB). Peak memory consumption was 8.1 MB. Max. memory is 14.3 GB. [2020-10-20 07:01:17,925 INFO L168 Benchmark]: Boogie Procedure Inliner took 58.58 ms. Allocated memory is still 41.9 MB. Free memory was 14.3 MB in the beginning and 11.9 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.3 MB. Max. memory is 14.3 GB. [2020-10-20 07:01:17,926 INFO L168 Benchmark]: Boogie Preprocessor took 78.43 ms. Allocated memory was 41.9 MB in the beginning and 43.5 MB in the end (delta: 1.6 MB). Free memory was 11.9 MB in the beginning and 25.6 MB in the end (delta: -13.7 MB). Peak memory consumption was 1.6 MB. Max. memory is 14.3 GB. [2020-10-20 07:01:17,927 INFO L168 Benchmark]: RCFGBuilder took 595.65 ms. Allocated memory is still 43.5 MB. Free memory was 25.6 MB in the beginning and 10.9 MB in the end (delta: 14.7 MB). Peak memory consumption was 16.0 MB. Max. memory is 14.3 GB. [2020-10-20 07:01:17,928 INFO L168 Benchmark]: BuchiAutomizer took 1468.49 ms. Allocated memory was 43.5 MB in the beginning and 56.6 MB in the end (delta: 13.1 MB). Free memory was 10.7 MB in the beginning and 32.3 MB in the end (delta: -21.6 MB). Peak memory consumption was 10.0 MB. Max. memory is 14.3 GB. [2020-10-20 07:01:17,929 INFO L168 Benchmark]: Witness Printer took 120.75 ms. Allocated memory is still 56.6 MB. Free memory was 32.3 MB in the beginning and 29.7 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 14.3 GB. [2020-10-20 07:01:17,940 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35 ms. Allocated memory is still 31.5 MB. Free memory was 17.6 MB in the beginning and 17.6 MB in the end (delta: 32.3 kB). Peak memory consumption was 32.3 kB. Max. memory is 14.3 GB. * CACSL2BoogieTranslator took 359.74 ms. Allocated memory was 40.9 MB in the beginning and 41.9 MB in the end (delta: 1.0 MB). Free memory was 17.4 MB in the beginning and 14.3 MB in the end (delta: 3.1 MB). Peak memory consumption was 8.1 MB. Max. memory is 14.3 GB. * Boogie Procedure Inliner took 58.58 ms. Allocated memory is still 41.9 MB. Free memory was 14.3 MB in the beginning and 11.9 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.3 MB. Max. memory is 14.3 GB. * Boogie Preprocessor took 78.43 ms. Allocated memory was 41.9 MB in the beginning and 43.5 MB in the end (delta: 1.6 MB). Free memory was 11.9 MB in the beginning and 25.6 MB in the end (delta: -13.7 MB). Peak memory consumption was 1.6 MB. Max. memory is 14.3 GB. * RCFGBuilder took 595.65 ms. Allocated memory is still 43.5 MB. Free memory was 25.6 MB in the beginning and 10.9 MB in the end (delta: 14.7 MB). Peak memory consumption was 16.0 MB. Max. memory is 14.3 GB. * BuchiAutomizer took 1468.49 ms. Allocated memory was 43.5 MB in the beginning and 56.6 MB in the end (delta: 13.1 MB). Free memory was 10.7 MB in the beginning and 32.3 MB in the end (delta: -21.6 MB). Peak memory consumption was 10.0 MB. Max. memory is 14.3 GB. * Witness Printer took 120.75 ms. Allocated memory is still 56.6 MB. Free memory was 32.3 MB in the beginning and 29.7 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 14.3 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@7dddc9bd=37, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@23e5b594=25, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@650b8f91=33, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@75a6906=26, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6b89f6c9=23, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@335da964=27, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@185c6a86=30, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3bc31ff=24, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@103f9014=34, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1ef8de92=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@5998b998=0, m_factorial_1=10, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1678b692=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4bd17a68=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@b8abd97=28, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@448ff1a7=32, m_IntMath=2, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1621ab51=31, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6686cab3=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@30da79a8=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@491c8465=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2072d819=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@72f7bb12=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4aa1fe00=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@70714df6=0, NULL=3580, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@13056d69=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3e97fcc0=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@813491b=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@a93df99=21, m_factorial_2=11, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5ed58594=35, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7a4e1f39=36, q=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@58a1d56e=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@71fc402=0, P13=27, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7453ba8d=0, P11=26, method_id=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@24868f9d=29, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@30fde383=0, P17=29, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4276292d=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@48cb518d=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...