./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/termination-restricted-15/Ex05.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/Ex05.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 8a1f32956e56edf938d274e701538e5f2c73fe0a .................................................................................................................................................................................................................................................................... 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 06:35:16,613 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-20 06:35:16,617 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-20 06:35:16,659 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-20 06:35:16,660 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-20 06:35:16,670 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-20 06:35:16,673 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-20 06:35:16,677 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-20 06:35:16,680 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-20 06:35:16,683 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-20 06:35:16,686 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-20 06:35:16,688 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-20 06:35:16,688 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-20 06:35:16,689 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-20 06:35:16,693 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-20 06:35:16,694 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-20 06:35:16,695 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-20 06:35:16,696 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-20 06:35:16,698 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-20 06:35:16,699 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-20 06:35:16,701 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-20 06:35:16,713 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-20 06:35:16,715 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-20 06:35:16,719 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-20 06:35:16,721 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-20 06:35:16,721 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-20 06:35:16,721 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-20 06:35:16,722 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-20 06:35:16,723 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-20 06:35:16,729 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-20 06:35:16,729 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-20 06:35:16,730 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-20 06:35:16,731 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-20 06:35:16,734 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-20 06:35:16,735 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-20 06:35:16,736 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-20 06:35:16,737 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-20 06:35:16,738 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-20 06:35:16,738 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-20 06:35:16,739 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-20 06:35:16,740 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-20 06:35:16,741 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2020-10-20 06:35:16,788 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-20 06:35:16,788 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-20 06:35:16,791 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-20 06:35:16,791 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-20 06:35:16,791 INFO L138 SettingsManager]: * Use SBE=true [2020-10-20 06:35:16,792 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-10-20 06:35:16,792 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-10-20 06:35:16,792 INFO L138 SettingsManager]: * Use old map elimination=false [2020-10-20 06:35:16,792 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-10-20 06:35:16,793 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-10-20 06:35:16,794 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-10-20 06:35:16,794 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-20 06:35:16,795 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-10-20 06:35:16,795 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-20 06:35:16,796 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-20 06:35:16,796 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-10-20 06:35:16,796 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-10-20 06:35:16,796 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-10-20 06:35:16,797 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-20 06:35:16,797 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-10-20 06:35:16,797 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-20 06:35:16,797 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-10-20 06:35:16,798 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-20 06:35:16,798 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-20 06:35:16,798 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-10-20 06:35:16,799 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-20 06:35:16,799 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-20 06:35:16,799 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-20 06:35:16,799 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-10-20 06:35:16,801 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-10-20 06:35:16,801 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 -> 8a1f32956e56edf938d274e701538e5f2c73fe0a [2020-10-20 06:35:17,016 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-20 06:35:17,029 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-20 06:35:17,033 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-20 06:35:17,035 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-20 06:35:17,036 INFO L275 PluginConnector]: CDTParser initialized [2020-10-20 06:35:17,037 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-restricted-15/Ex05.c [2020-10-20 06:35:17,129 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/14b39fa5a/2669931237254a4b97c0cb7cd24cd3f5/FLAGb4cacc587 [2020-10-20 06:35:17,636 INFO L306 CDTParser]: Found 1 translation units. [2020-10-20 06:35:17,637 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-restricted-15/Ex05.c [2020-10-20 06:35:17,643 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/14b39fa5a/2669931237254a4b97c0cb7cd24cd3f5/FLAGb4cacc587 [2020-10-20 06:35:18,067 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/14b39fa5a/2669931237254a4b97c0cb7cd24cd3f5 [2020-10-20 06:35:18,070 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-20 06:35:18,077 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-20 06:35:18,080 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-20 06:35:18,080 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-20 06:35:18,084 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-20 06:35:18,086 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 06:35:18" (1/1) ... [2020-10-20 06:35:18,089 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@69d96632 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:35:18, skipping insertion in model container [2020-10-20 06:35:18,089 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 06:35:18" (1/1) ... [2020-10-20 06:35:18,099 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-20 06:35:18,117 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-20 06:35:18,331 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 06:35:18,336 INFO L203 MainTranslator]: Completed pre-run [2020-10-20 06:35:18,350 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 06:35:18,363 INFO L208 MainTranslator]: Completed translation [2020-10-20 06:35:18,363 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:35:18 WrapperNode [2020-10-20 06:35:18,363 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-20 06:35:18,364 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-20 06:35:18,364 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-20 06:35:18,364 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-20 06:35:18,371 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:35:18" (1/1) ... [2020-10-20 06:35:18,375 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:35:18" (1/1) ... [2020-10-20 06:35:18,392 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-20 06:35:18,392 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-20 06:35:18,392 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-20 06:35:18,392 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-20 06:35:18,400 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:35:18" (1/1) ... [2020-10-20 06:35:18,400 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:35:18" (1/1) ... [2020-10-20 06:35:18,401 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:35:18" (1/1) ... [2020-10-20 06:35:18,401 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:35:18" (1/1) ... [2020-10-20 06:35:18,403 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:35:18" (1/1) ... [2020-10-20 06:35:18,407 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:35:18" (1/1) ... [2020-10-20 06:35:18,407 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:35:18" (1/1) ... [2020-10-20 06:35:18,408 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-20 06:35:18,409 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-20 06:35:18,409 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-20 06:35:18,409 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-20 06:35:18,410 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:35:18" (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 06:35:18,473 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-20 06:35:18,474 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-20 06:35:18,595 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-20 06:35:18,595 INFO L298 CfgBuilder]: Removed 5 assume(true) statements. [2020-10-20 06:35:18,597 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 06:35:18 BoogieIcfgContainer [2020-10-20 06:35:18,598 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-20 06:35:18,598 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-10-20 06:35:18,598 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-10-20 06:35:18,602 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-10-20 06:35:18,603 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-10-20 06:35:18,604 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 20.10 06:35:18" (1/3) ... [2020-10-20 06:35:18,605 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2bfdea42 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 20.10 06:35:18, skipping insertion in model container [2020-10-20 06:35:18,605 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-10-20 06:35:18,605 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:35:18" (2/3) ... [2020-10-20 06:35:18,606 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2bfdea42 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 20.10 06:35:18, skipping insertion in model container [2020-10-20 06:35:18,606 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-10-20 06:35:18,606 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 06:35:18" (3/3) ... [2020-10-20 06:35:18,608 INFO L373 chiAutomizerObserver]: Analyzing ICFG Ex05.c [2020-10-20 06:35:18,660 INFO L359 BuchiCegarLoop]: Interprodecural is true [2020-10-20 06:35:18,660 INFO L360 BuchiCegarLoop]: Hoare is false [2020-10-20 06:35:18,660 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-10-20 06:35:18,660 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-20 06:35:18,661 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-20 06:35:18,661 INFO L364 BuchiCegarLoop]: Difference is false [2020-10-20 06:35:18,661 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-20 06:35:18,661 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-10-20 06:35:18,675 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 6 states. [2020-10-20 06:35:18,694 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2020-10-20 06:35:18,694 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-20 06:35:18,694 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-20 06:35:18,701 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-10-20 06:35:18,702 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1] [2020-10-20 06:35:18,702 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2020-10-20 06:35:18,702 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 6 states. [2020-10-20 06:35:18,703 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2020-10-20 06:35:18,703 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-20 06:35:18,703 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-20 06:35:18,704 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-10-20 06:35:18,704 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1] [2020-10-20 06:35:18,712 INFO L794 eck$LassoCheckResult]: Stem: 3#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_#t~nondet0, main_~i~0;havoc main_~i~0;main_~i~0 := main_#t~nondet0;havoc main_#t~nondet0; 6#L9-2true [2020-10-20 06:35:18,712 INFO L796 eck$LassoCheckResult]: Loop: 6#L9-2true assume !!(0 != ~unnamed0~0~true); 6#L9-2true [2020-10-20 06:35:18,719 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:35:18,720 INFO L82 PathProgramCache]: Analyzing trace with hash 32, now seen corresponding path program 1 times [2020-10-20 06:35:18,728 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:35:18,728 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [744966506] [2020-10-20 06:35:18,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:35:18,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:35:18,796 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:35:18,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:35:18,799 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:35:18,815 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 06:35:18,816 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:35:18,817 INFO L82 PathProgramCache]: Analyzing trace with hash 41, now seen corresponding path program 1 times [2020-10-20 06:35:18,817 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:35:18,817 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1156451663] [2020-10-20 06:35:18,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:35:18,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:35:18,822 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:35:18,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:35:18,824 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:35:18,825 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 06:35:18,827 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:35:18,827 INFO L82 PathProgramCache]: Analyzing trace with hash 1002, now seen corresponding path program 1 times [2020-10-20 06:35:18,827 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:35:18,828 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1375254657] [2020-10-20 06:35:18,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:35:18,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:35:18,833 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:35:18,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:35:18,837 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:35:18,839 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 06:35:18,933 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 20.10 06:35:18 BoogieIcfgContainer [2020-10-20 06:35:18,933 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-10-20 06:35:18,934 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-20 06:35:18,934 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-20 06:35:18,934 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-20 06:35:18,935 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 06:35:18" (3/4) ... [2020-10-20 06:35:18,939 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2020-10-20 06:35:18,982 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-10-20 06:35:18,982 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-20 06:35:18,985 INFO L168 Benchmark]: Toolchain (without parser) took 912.45 ms. Allocated memory was 35.7 MB in the beginning and 46.7 MB in the end (delta: 11.0 MB). Free memory was 15.3 MB in the beginning and 23.0 MB in the end (delta: -7.7 MB). Peak memory consumption was 3.3 MB. Max. memory is 14.3 GB. [2020-10-20 06:35:18,986 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 33.6 MB. Free memory was 9.6 MB in the beginning and 9.5 MB in the end (delta: 43.7 kB). Peak memory consumption was 43.7 kB. Max. memory is 14.3 GB. [2020-10-20 06:35:18,987 INFO L168 Benchmark]: CACSL2BoogieTranslator took 284.03 ms. Allocated memory was 35.7 MB in the beginning and 45.1 MB in the end (delta: 9.4 MB). Free memory was 14.4 MB in the beginning and 27.8 MB in the end (delta: -13.4 MB). Peak memory consumption was 10.9 MB. Max. memory is 14.3 GB. [2020-10-20 06:35:18,988 INFO L168 Benchmark]: Boogie Procedure Inliner took 27.92 ms. Allocated memory is still 45.1 MB. Free memory was 27.8 MB in the beginning and 26.3 MB in the end (delta: 1.5 MB). Peak memory consumption was 1.5 MB. Max. memory is 14.3 GB. [2020-10-20 06:35:18,989 INFO L168 Benchmark]: Boogie Preprocessor took 16.33 ms. Allocated memory is still 45.1 MB. Free memory was 26.3 MB in the beginning and 25.1 MB in the end (delta: 1.2 MB). Peak memory consumption was 1.2 MB. Max. memory is 14.3 GB. [2020-10-20 06:35:18,990 INFO L168 Benchmark]: RCFGBuilder took 188.89 ms. Allocated memory is still 45.1 MB. Free memory was 25.1 MB in the beginning and 17.9 MB in the end (delta: 7.3 MB). Peak memory consumption was 7.3 MB. Max. memory is 14.3 GB. [2020-10-20 06:35:18,991 INFO L168 Benchmark]: BuchiAutomizer took 335.31 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 25.0 MB in the end (delta: -7.3 MB). Peak memory consumption was 7.4 MB. Max. memory is 14.3 GB. [2020-10-20 06:35:18,991 INFO L168 Benchmark]: Witness Printer took 48.33 ms. Allocated memory is still 46.7 MB. Free memory was 25.0 MB in the beginning and 23.2 MB in the end (delta: 1.8 MB). Peak memory consumption was 1.8 MB. Max. memory is 14.3 GB. [2020-10-20 06:35:18,997 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 33.6 MB. Free memory was 9.6 MB in the beginning and 9.5 MB in the end (delta: 43.7 kB). Peak memory consumption was 43.7 kB. Max. memory is 14.3 GB. * CACSL2BoogieTranslator took 284.03 ms. Allocated memory was 35.7 MB in the beginning and 45.1 MB in the end (delta: 9.4 MB). Free memory was 14.4 MB in the beginning and 27.8 MB in the end (delta: -13.4 MB). Peak memory consumption was 10.9 MB. Max. memory is 14.3 GB. * Boogie Procedure Inliner took 27.92 ms. Allocated memory is still 45.1 MB. Free memory was 27.8 MB in the beginning and 26.3 MB in the end (delta: 1.5 MB). Peak memory consumption was 1.5 MB. Max. memory is 14.3 GB. * Boogie Preprocessor took 16.33 ms. Allocated memory is still 45.1 MB. Free memory was 26.3 MB in the beginning and 25.1 MB in the end (delta: 1.2 MB). Peak memory consumption was 1.2 MB. Max. memory is 14.3 GB. * RCFGBuilder took 188.89 ms. Allocated memory is still 45.1 MB. Free memory was 25.1 MB in the beginning and 17.9 MB in the end (delta: 7.3 MB). Peak memory consumption was 7.3 MB. Max. memory is 14.3 GB. * BuchiAutomizer took 335.31 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 25.0 MB in the end (delta: -7.3 MB). Peak memory consumption was 7.4 MB. Max. memory is 14.3 GB. * Witness Printer took 48.33 ms. Allocated memory is still 46.7 MB. Free memory was 25.0 MB in the beginning and 23.2 MB in the end (delta: 1.8 MB). Peak memory consumption was 1.8 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 0.2s 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: 9]: 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 {org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@30e38eee=0, \result=0, i=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 9]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L6] int i; [L7] i = __VERIFIER_nondet_int() Loop: [L9] COND TRUE \read(true) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...