./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/termination-crafted/WhileTrue.c --full-output -ea --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 8bd4bc60 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -ea -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-crafted/WhileTrue.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 b58543c5c6c478461bb3678f5712726562def78f .................................................................................................................................................................................................................................................................... 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 0.1.25-8bd4bc6 [2020-07-29 01:28:10,998 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-29 01:28:11,001 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-29 01:28:11,013 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-29 01:28:11,014 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-29 01:28:11,015 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-29 01:28:11,017 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-29 01:28:11,019 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-29 01:28:11,021 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-29 01:28:11,022 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-29 01:28:11,023 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-29 01:28:11,024 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-29 01:28:11,024 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-29 01:28:11,025 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-29 01:28:11,026 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-29 01:28:11,028 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-29 01:28:11,029 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-29 01:28:11,030 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-29 01:28:11,032 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-29 01:28:11,034 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-29 01:28:11,035 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-29 01:28:11,037 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-29 01:28:11,038 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-29 01:28:11,039 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-29 01:28:11,041 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-29 01:28:11,042 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-29 01:28:11,042 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-29 01:28:11,043 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-29 01:28:11,044 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-29 01:28:11,045 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-29 01:28:11,045 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-29 01:28:11,046 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-29 01:28:11,047 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-29 01:28:11,048 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-29 01:28:11,049 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-29 01:28:11,049 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-29 01:28:11,050 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-29 01:28:11,050 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-29 01:28:11,051 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-29 01:28:11,052 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-29 01:28:11,052 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-29 01:28:11,053 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2020-07-29 01:28:11,071 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-29 01:28:11,071 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-29 01:28:11,072 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-29 01:28:11,073 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-29 01:28:11,073 INFO L138 SettingsManager]: * Use SBE=true [2020-07-29 01:28:11,073 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-07-29 01:28:11,073 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-07-29 01:28:11,074 INFO L138 SettingsManager]: * Use old map elimination=false [2020-07-29 01:28:11,074 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-07-29 01:28:11,074 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-07-29 01:28:11,074 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-07-29 01:28:11,075 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-29 01:28:11,075 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-07-29 01:28:11,075 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-29 01:28:11,076 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-29 01:28:11,076 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-07-29 01:28:11,076 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-07-29 01:28:11,076 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-07-29 01:28:11,077 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-29 01:28:11,077 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-07-29 01:28:11,077 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-29 01:28:11,077 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-07-29 01:28:11,078 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-29 01:28:11,078 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-29 01:28:11,078 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-07-29 01:28:11,079 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-29 01:28:11,079 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-29 01:28:11,081 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-29 01:28:11,081 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-07-29 01:28:11,083 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-07-29 01:28:11,083 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 -> b58543c5c6c478461bb3678f5712726562def78f [2020-07-29 01:28:11,442 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-29 01:28:11,455 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-29 01:28:11,459 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-29 01:28:11,460 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-29 01:28:11,461 INFO L275 PluginConnector]: CDTParser initialized [2020-07-29 01:28:11,462 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-crafted/WhileTrue.c [2020-07-29 01:28:11,537 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/83e28af4b/ced77a1ed3ab4ade8825bd4ddc92f34e/FLAGc029ab1b4 [2020-07-29 01:28:12,000 INFO L306 CDTParser]: Found 1 translation units. [2020-07-29 01:28:12,000 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-crafted/WhileTrue.c [2020-07-29 01:28:12,006 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/83e28af4b/ced77a1ed3ab4ade8825bd4ddc92f34e/FLAGc029ab1b4 [2020-07-29 01:28:12,385 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/83e28af4b/ced77a1ed3ab4ade8825bd4ddc92f34e [2020-07-29 01:28:12,388 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-29 01:28:12,392 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-07-29 01:28:12,393 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-29 01:28:12,394 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-29 01:28:12,397 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-29 01:28:12,399 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.07 01:28:12" (1/1) ... [2020-07-29 01:28:12,403 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@68da2c7b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:28:12, skipping insertion in model container [2020-07-29 01:28:12,403 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.07 01:28:12" (1/1) ... [2020-07-29 01:28:12,412 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-29 01:28:12,433 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-29 01:28:12,591 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-29 01:28:12,597 INFO L203 MainTranslator]: Completed pre-run [2020-07-29 01:28:12,611 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-29 01:28:12,626 INFO L208 MainTranslator]: Completed translation [2020-07-29 01:28:12,627 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:28:12 WrapperNode [2020-07-29 01:28:12,627 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-29 01:28:12,628 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-07-29 01:28:12,628 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-07-29 01:28:12,628 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-07-29 01:28:12,637 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:28:12" (1/1) ... [2020-07-29 01:28:12,642 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:28:12" (1/1) ... [2020-07-29 01:28:12,719 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-07-29 01:28:12,719 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-29 01:28:12,719 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-29 01:28:12,719 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-29 01:28:12,729 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:28:12" (1/1) ... [2020-07-29 01:28:12,730 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:28:12" (1/1) ... [2020-07-29 01:28:12,730 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:28:12" (1/1) ... [2020-07-29 01:28:12,730 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:28:12" (1/1) ... [2020-07-29 01:28:12,732 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:28:12" (1/1) ... [2020-07-29 01:28:12,738 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:28:12" (1/1) ... [2020-07-29 01:28:12,739 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:28:12" (1/1) ... [2020-07-29 01:28:12,740 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-29 01:28:12,740 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-29 01:28:12,740 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-29 01:28:12,741 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-29 01:28:12,743 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:28:12" (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 [2020-07-29 01:28:12,814 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-29 01:28:12,814 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-29 01:28:12,948 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-29 01:28:12,948 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-07-29 01:28:12,951 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.07 01:28:12 BoogieIcfgContainer [2020-07-29 01:28:12,952 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-29 01:28:12,952 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-07-29 01:28:12,952 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-07-29 01:28:12,956 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-07-29 01:28:12,957 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-29 01:28:12,957 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 29.07 01:28:12" (1/3) ... [2020-07-29 01:28:12,959 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@369de648 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.07 01:28:12, skipping insertion in model container [2020-07-29 01:28:12,959 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-29 01:28:12,959 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:28:12" (2/3) ... [2020-07-29 01:28:12,959 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@369de648 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.07 01:28:12, skipping insertion in model container [2020-07-29 01:28:12,960 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-29 01:28:12,960 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.07 01:28:12" (3/3) ... [2020-07-29 01:28:12,961 INFO L371 chiAutomizerObserver]: Analyzing ICFG WhileTrue.c [2020-07-29 01:28:13,016 INFO L356 BuchiCegarLoop]: Interprodecural is true [2020-07-29 01:28:13,016 INFO L357 BuchiCegarLoop]: Hoare is false [2020-07-29 01:28:13,017 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-07-29 01:28:13,017 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-29 01:28:13,017 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-29 01:28:13,018 INFO L361 BuchiCegarLoop]: Difference is false [2020-07-29 01:28:13,018 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-29 01:28:13,020 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-07-29 01:28:13,035 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 6 states. [2020-07-29 01:28:13,071 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2020-07-29 01:28:13,072 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-29 01:28:13,072 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-29 01:28:13,078 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-07-29 01:28:13,079 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1] [2020-07-29 01:28:13,079 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2020-07-29 01:28:13,079 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 6 states. [2020-07-29 01:28:13,083 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2020-07-29 01:28:13,083 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-29 01:28:13,083 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-29 01:28:13,084 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-07-29 01:28:13,084 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1] [2020-07-29 01:28:13,093 INFO L794 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue havoc main_#res; 6#L13-2true [2020-07-29 01:28:13,094 INFO L796 eck$LassoCheckResult]: Loop: 6#L13-2true assume !!(0 != ~unnamed0~0~true); 6#L13-2true [2020-07-29 01:28:13,101 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-29 01:28:13,101 INFO L82 PathProgramCache]: Analyzing trace with hash 32, now seen corresponding path program 1 times [2020-07-29 01:28:13,113 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-29 01:28:13,113 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1630611258] [2020-07-29 01:28:13,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-29 01:28:13,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 01:28:13,206 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 01:28:13,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 01:28:13,211 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 01:28:13,231 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-29 01:28:13,233 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-29 01:28:13,233 INFO L82 PathProgramCache]: Analyzing trace with hash 41, now seen corresponding path program 1 times [2020-07-29 01:28:13,233 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-29 01:28:13,235 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [403915235] [2020-07-29 01:28:13,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-29 01:28:13,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 01:28:13,245 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 01:28:13,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 01:28:13,252 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 01:28:13,253 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-29 01:28:13,258 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-29 01:28:13,258 INFO L82 PathProgramCache]: Analyzing trace with hash 1002, now seen corresponding path program 1 times [2020-07-29 01:28:13,259 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-29 01:28:13,260 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2043414280] [2020-07-29 01:28:13,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-29 01:28:13,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 01:28:13,269 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 01:28:13,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 01:28:13,271 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 01:28:13,272 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-29 01:28:13,336 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 29.07 01:28:13 BoogieIcfgContainer [2020-07-29 01:28:13,336 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-07-29 01:28:13,337 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-07-29 01:28:13,337 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-07-29 01:28:13,337 INFO L275 PluginConnector]: Witness Printer initialized [2020-07-29 01:28:13,338 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.07 01:28:12" (3/4) ... [2020-07-29 01:28:13,341 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2020-07-29 01:28:13,392 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-07-29 01:28:13,392 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-07-29 01:28:13,395 INFO L168 Benchmark]: Toolchain (without parser) took 1004.48 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 65.5 MB). Free memory was 961.6 MB in the beginning and 1.0 GB in the end (delta: -52.0 MB). Peak memory consumption was 13.5 MB. Max. memory is 11.5 GB. [2020-07-29 01:28:13,396 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 1.0 GB. Free memory is still 987.1 MB. There was no memory consumed. Max. memory is 11.5 GB. [2020-07-29 01:28:13,397 INFO L168 Benchmark]: CACSL2BoogieTranslator took 234.08 ms. Allocated memory is still 1.0 GB. Free memory was 961.6 MB in the beginning and 950.8 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2020-07-29 01:28:13,399 INFO L168 Benchmark]: Boogie Procedure Inliner took 91.09 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 65.5 MB). Free memory was 950.8 MB in the beginning and 1.1 GB in the end (delta: -117.5 MB). Peak memory consumption was 9.6 MB. Max. memory is 11.5 GB. [2020-07-29 01:28:13,400 INFO L168 Benchmark]: Boogie Preprocessor took 20.72 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 7.0 MB). Peak memory consumption was 7.0 MB. Max. memory is 11.5 GB. [2020-07-29 01:28:13,401 INFO L168 Benchmark]: RCFGBuilder took 211.51 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 19.7 MB). Peak memory consumption was 19.7 MB. Max. memory is 11.5 GB. [2020-07-29 01:28:13,402 INFO L168 Benchmark]: BuchiAutomizer took 384.27 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 21.0 MB). Peak memory consumption was 21.0 MB. Max. memory is 11.5 GB. [2020-07-29 01:28:13,403 INFO L168 Benchmark]: Witness Printer took 55.00 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 7.0 MB). Peak memory consumption was 7.0 MB. Max. memory is 11.5 GB. [2020-07-29 01:28:13,410 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - AssertionsEnabledResult: Assertions are enabled Assertions are enabled - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 ms. Allocated memory is still 1.0 GB. Free memory is still 987.1 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 234.08 ms. Allocated memory is still 1.0 GB. Free memory was 961.6 MB in the beginning and 950.8 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 91.09 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 65.5 MB). Free memory was 950.8 MB in the beginning and 1.1 GB in the end (delta: -117.5 MB). Peak memory consumption was 9.6 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 20.72 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 7.0 MB). Peak memory consumption was 7.0 MB. Max. memory is 11.5 GB. * RCFGBuilder took 211.51 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 19.7 MB). Peak memory consumption was 19.7 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 384.27 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 21.0 MB). Peak memory consumption was 21.0 MB. Max. memory is 11.5 GB. * Witness Printer took 55.00 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 7.0 MB). Peak memory consumption was 7.0 MB. Max. memory is 11.5 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 {\result=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 13]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: Loop: [L13] COND TRUE \read(true) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...