./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/termination-restricted-15/Loop-2.c --full-output --architecture 64bit -------------------------------------------------------------------------------- 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/termination-restricted-15/Loop-2.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-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 64bit --witnessprinter.graph.data.programhash 079a94391776bb57925fadb38be78dd5e66e0a82 ......................................................................................................................................................................................................................................................................... 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 06:35:26,895 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-20 06:35:26,897 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-20 06:35:26,922 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-20 06:35:26,923 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-20 06:35:26,924 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-20 06:35:26,925 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-20 06:35:26,927 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-20 06:35:26,929 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-20 06:35:26,930 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-20 06:35:26,931 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-20 06:35:26,933 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-20 06:35:26,933 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-20 06:35:26,934 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-20 06:35:26,935 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-20 06:35:26,936 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-20 06:35:26,937 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-20 06:35:26,938 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-20 06:35:26,940 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-20 06:35:26,943 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-20 06:35:26,944 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-20 06:35:26,945 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-20 06:35:26,947 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-20 06:35:26,948 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-20 06:35:26,950 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-20 06:35:26,951 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-20 06:35:26,951 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-20 06:35:26,952 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-20 06:35:26,952 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-20 06:35:26,953 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-20 06:35:26,962 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-20 06:35:26,963 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-20 06:35:26,964 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-20 06:35:26,964 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-20 06:35:26,965 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-20 06:35:26,966 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-20 06:35:26,968 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-20 06:35:26,969 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-20 06:35:26,970 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-20 06:35:26,971 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-20 06:35:26,972 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-20 06:35:26,973 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2020-10-20 06:35:27,024 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-20 06:35:27,024 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-20 06:35:27,027 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-20 06:35:27,027 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-20 06:35:27,027 INFO L138 SettingsManager]: * Use SBE=true [2020-10-20 06:35:27,028 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-10-20 06:35:27,028 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-10-20 06:35:27,028 INFO L138 SettingsManager]: * Use old map elimination=false [2020-10-20 06:35:27,028 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-10-20 06:35:27,028 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-10-20 06:35:27,030 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-10-20 06:35:27,030 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-20 06:35:27,030 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-10-20 06:35:27,031 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-20 06:35:27,031 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-20 06:35:27,031 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-10-20 06:35:27,031 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-10-20 06:35:27,032 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-10-20 06:35:27,032 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-20 06:35:27,034 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-10-20 06:35:27,034 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-20 06:35:27,035 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-10-20 06:35:27,036 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-20 06:35:27,037 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-20 06:35:27,037 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-10-20 06:35:27,038 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-20 06:35:27,038 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-20 06:35:27,038 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-20 06:35:27,039 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-10-20 06:35:27,040 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-10-20 06:35:27,040 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 -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 079a94391776bb57925fadb38be78dd5e66e0a82 [2020-10-20 06:35:27,265 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-20 06:35:27,278 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-20 06:35:27,282 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-20 06:35:27,284 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-20 06:35:27,284 INFO L275 PluginConnector]: CDTParser initialized [2020-10-20 06:35:27,285 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-restricted-15/Loop-2.c [2020-10-20 06:35:27,368 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/25ebe27f5/ad09774a054b4e7aafc532b802c8c817/FLAG8df5f256b [2020-10-20 06:35:27,836 INFO L306 CDTParser]: Found 1 translation units. [2020-10-20 06:35:27,837 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-restricted-15/Loop-2.c [2020-10-20 06:35:27,847 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/25ebe27f5/ad09774a054b4e7aafc532b802c8c817/FLAG8df5f256b [2020-10-20 06:35:28,219 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/25ebe27f5/ad09774a054b4e7aafc532b802c8c817 [2020-10-20 06:35:28,224 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-20 06:35:28,242 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-20 06:35:28,243 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-20 06:35:28,243 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-20 06:35:28,247 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-20 06:35:28,249 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 06:35:28" (1/1) ... [2020-10-20 06:35:28,252 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5addaf86 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:35:28, skipping insertion in model container [2020-10-20 06:35:28,253 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 06:35:28" (1/1) ... [2020-10-20 06:35:28,261 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-20 06:35:28,279 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-20 06:35:28,558 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 06:35:28,565 INFO L203 MainTranslator]: Completed pre-run [2020-10-20 06:35:28,584 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 06:35:28,598 INFO L208 MainTranslator]: Completed translation [2020-10-20 06:35:28,599 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:35:28 WrapperNode [2020-10-20 06:35:28,599 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-20 06:35:28,600 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-20 06:35:28,600 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-20 06:35:28,600 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-20 06:35:28,608 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:35:28" (1/1) ... [2020-10-20 06:35:28,613 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:35:28" (1/1) ... [2020-10-20 06:35:28,633 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-20 06:35:28,633 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-20 06:35:28,633 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-20 06:35:28,633 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-20 06:35:28,641 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:35:28" (1/1) ... [2020-10-20 06:35:28,641 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:35:28" (1/1) ... [2020-10-20 06:35:28,642 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:35:28" (1/1) ... [2020-10-20 06:35:28,642 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:35:28" (1/1) ... [2020-10-20 06:35:28,644 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:35:28" (1/1) ... [2020-10-20 06:35:28,648 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:35:28" (1/1) ... [2020-10-20 06:35:28,649 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:35:28" (1/1) ... [2020-10-20 06:35:28,650 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-20 06:35:28,650 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-20 06:35:28,650 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-20 06:35:28,651 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-20 06:35:28,652 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:35:28" (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 06:35:28,715 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-20 06:35:28,716 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-20 06:35:28,864 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-20 06:35:28,864 INFO L298 CfgBuilder]: Removed 5 assume(true) statements. [2020-10-20 06:35:28,866 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 06:35:28 BoogieIcfgContainer [2020-10-20 06:35:28,867 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-20 06:35:28,867 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-10-20 06:35:28,868 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-10-20 06:35:28,872 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-10-20 06:35:28,873 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-10-20 06:35:28,873 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 20.10 06:35:28" (1/3) ... [2020-10-20 06:35:28,874 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@38e7d193 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 20.10 06:35:28, skipping insertion in model container [2020-10-20 06:35:28,875 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-10-20 06:35:28,875 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:35:28" (2/3) ... [2020-10-20 06:35:28,875 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@38e7d193 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 20.10 06:35:28, skipping insertion in model container [2020-10-20 06:35:28,875 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-10-20 06:35:28,876 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 06:35:28" (3/3) ... [2020-10-20 06:35:28,877 INFO L373 chiAutomizerObserver]: Analyzing ICFG Loop-2.c [2020-10-20 06:35:28,935 INFO L359 BuchiCegarLoop]: Interprodecural is true [2020-10-20 06:35:28,935 INFO L360 BuchiCegarLoop]: Hoare is false [2020-10-20 06:35:28,935 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-10-20 06:35:28,935 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-20 06:35:28,935 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-20 06:35:28,935 INFO L364 BuchiCegarLoop]: Difference is false [2020-10-20 06:35:28,936 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-20 06:35:28,936 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-10-20 06:35:28,949 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 6 states. [2020-10-20 06:35:28,973 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2020-10-20 06:35:28,973 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-20 06:35:28,974 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-20 06:35:28,981 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-10-20 06:35:28,982 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1] [2020-10-20 06:35:28,982 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2020-10-20 06:35:28,982 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 6 states. [2020-10-20 06:35:28,983 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2020-10-20 06:35:28,983 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-20 06:35:28,983 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-20 06:35:28,984 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-10-20 06:35:28,984 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1] [2020-10-20 06:35:28,993 INFO L794 eck$LassoCheckResult]: Stem: 5#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_~a~0, main_~b~0, main_~i~0;havoc main_~a~0;havoc main_~b~0;havoc main_~i~0;main_~a~0 := 5;main_~b~0 := 3;main_~i~0 := 0; 6#L13-2true [2020-10-20 06:35:28,994 INFO L796 eck$LassoCheckResult]: Loop: 6#L13-2true assume !!(main_~i~0 < 10);main_~i~0 := main_~i~0; 6#L13-2true [2020-10-20 06:35:29,001 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:35:29,001 INFO L82 PathProgramCache]: Analyzing trace with hash 32, now seen corresponding path program 1 times [2020-10-20 06:35:29,012 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:35:29,013 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [515347808] [2020-10-20 06:35:29,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:35:29,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:35:29,094 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:35:29,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:35:29,100 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:35:29,116 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 06:35:29,117 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:35:29,118 INFO L82 PathProgramCache]: Analyzing trace with hash 41, now seen corresponding path program 1 times [2020-10-20 06:35:29,118 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:35:29,118 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [48466866] [2020-10-20 06:35:29,118 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:35:29,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:35:29,124 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:35:29,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:35:29,128 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:35:29,129 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 06:35:29,131 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:35:29,131 INFO L82 PathProgramCache]: Analyzing trace with hash 1002, now seen corresponding path program 1 times [2020-10-20 06:35:29,132 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:35:29,132 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2084286353] [2020-10-20 06:35:29,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:35:29,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:35:29,142 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:35:29,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:35:29,146 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:35:29,148 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 06:35:29,273 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 20.10 06:35:29 BoogieIcfgContainer [2020-10-20 06:35:29,273 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-10-20 06:35:29,274 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-20 06:35:29,274 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-20 06:35:29,274 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-20 06:35:29,275 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 06:35:28" (3/4) ... [2020-10-20 06:35:29,281 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2020-10-20 06:35:29,338 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-10-20 06:35:29,339 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-20 06:35:29,342 INFO L168 Benchmark]: Toolchain (without parser) took 1114.95 ms. Allocated memory was 34.6 MB in the beginning and 46.7 MB in the end (delta: 12.1 MB). Free memory was 6.5 MB in the beginning and 24.8 MB in the end (delta: -18.2 MB). There was no memory consumed. Max. memory is 14.3 GB. [2020-10-20 06:35:29,343 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 34.6 MB. Free memory was 11.8 MB in the beginning and 11.7 MB in the end (delta: 47.5 kB). Peak memory consumption was 47.5 kB. Max. memory is 14.3 GB. [2020-10-20 06:35:29,345 INFO L168 Benchmark]: CACSL2BoogieTranslator took 356.20 ms. Allocated memory was 37.2 MB in the beginning and 45.1 MB in the end (delta: 7.9 MB). Free memory was 18.9 MB in the beginning and 28.7 MB in the end (delta: -9.8 MB). Peak memory consumption was 9.7 MB. Max. memory is 14.3 GB. [2020-10-20 06:35:29,346 INFO L168 Benchmark]: Boogie Procedure Inliner took 33.14 ms. Allocated memory is still 45.1 MB. Free memory was 28.6 MB in the beginning and 27.1 MB in the end (delta: 1.5 MB). Peak memory consumption was 1.5 MB. Max. memory is 14.3 GB. [2020-10-20 06:35:29,347 INFO L168 Benchmark]: Boogie Preprocessor took 16.86 ms. Allocated memory is still 45.1 MB. Free memory was 27.1 MB in the beginning and 26.0 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.1 MB. Max. memory is 14.3 GB. [2020-10-20 06:35:29,348 INFO L168 Benchmark]: RCFGBuilder took 216.49 ms. Allocated memory is still 45.1 MB. Free memory was 25.9 MB in the beginning and 17.8 MB in the end (delta: 8.1 MB). Peak memory consumption was 8.1 MB. Max. memory is 14.3 GB. [2020-10-20 06:35:29,349 INFO L168 Benchmark]: BuchiAutomizer took 406.00 ms. Allocated memory was 45.1 MB in the beginning and 46.7 MB in the end (delta: 1.6 MB). Free memory was 17.7 MB in the beginning and 26.7 MB in the end (delta: -8.9 MB). Peak memory consumption was 8.6 MB. Max. memory is 14.3 GB. [2020-10-20 06:35:29,350 INFO L168 Benchmark]: Witness Printer took 64.97 ms. Allocated memory is still 46.7 MB. Free memory was 26.7 MB in the beginning and 24.8 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 14.3 GB. [2020-10-20 06:35:29,358 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 34.6 MB. Free memory was 11.8 MB in the beginning and 11.7 MB in the end (delta: 47.5 kB). Peak memory consumption was 47.5 kB. Max. memory is 14.3 GB. * CACSL2BoogieTranslator took 356.20 ms. Allocated memory was 37.2 MB in the beginning and 45.1 MB in the end (delta: 7.9 MB). Free memory was 18.9 MB in the beginning and 28.7 MB in the end (delta: -9.8 MB). Peak memory consumption was 9.7 MB. Max. memory is 14.3 GB. * Boogie Procedure Inliner took 33.14 ms. Allocated memory is still 45.1 MB. Free memory was 28.6 MB in the beginning and 27.1 MB in the end (delta: 1.5 MB). Peak memory consumption was 1.5 MB. Max. memory is 14.3 GB. * Boogie Preprocessor took 16.86 ms. Allocated memory is still 45.1 MB. Free memory was 27.1 MB in the beginning and 26.0 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.1 MB. Max. memory is 14.3 GB. * RCFGBuilder took 216.49 ms. Allocated memory is still 45.1 MB. Free memory was 25.9 MB in the beginning and 17.8 MB in the end (delta: 8.1 MB). Peak memory consumption was 8.1 MB. Max. memory is 14.3 GB. * BuchiAutomizer took 406.00 ms. Allocated memory was 45.1 MB in the beginning and 46.7 MB in the end (delta: 1.6 MB). Free memory was 17.7 MB in the beginning and 26.7 MB in the end (delta: -8.9 MB). Peak memory consumption was 8.6 MB. Max. memory is 14.3 GB. * Witness Printer took 64.97 ms. Allocated memory is still 46.7 MB. Free memory was 26.7 MB in the beginning and 24.8 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 14.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Trivial decomposition into one nonterminating module. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 0.3s and 1 iterations. TraceHistogramMax:1. Analysis of lassos took 0.2s. Construction of modules took 0.0s. Büchi inclusion checks took 0.0s. Highest rank in rank-based complementation 0. Minimization of det autom 0. Minimization of nondet autom 0. Automata minimization No data available. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: No data available LassoAnalysisResults: nont1 unkn0 SFLI0 SFLT0 conc0 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: 13]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {} State at position 1 is {a=5, \result=0, b=3, i=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 13]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L6] int a; [L7] int b; [L8] int i; [L9] a = 5 [L10] b = 3 [L11] i = 0 Loop: [L13] COND TRUE i < 10 [L13] i = i + 0 End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...