./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-crafted/NonTerminationSimple7.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version cad46833 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_922ff7c4-4484-4840-8c7d-d1b43babc108/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_922ff7c4-4484-4840-8c7d-d1b43babc108/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_922ff7c4-4484-4840-8c7d-d1b43babc108/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_922ff7c4-4484-4840-8c7d-d1b43babc108/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-crafted/NonTerminationSimple7.c -s /tmp/vcloud-vcloud-master/worker/working_dir_922ff7c4-4484-4840-8c7d-d1b43babc108/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_922ff7c4-4484-4840-8c7d-d1b43babc108/bin/uautomizer --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 e53f2fdb98621a674cb41b7388b3e8cc7db6ca72 ..................................................................................................................................................................................................................................................................... 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 0.1.24-cad4683 [2019-10-22 08:55:58,998 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-22 08:55:59,000 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-22 08:55:59,009 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-22 08:55:59,009 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-22 08:55:59,010 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-22 08:55:59,011 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-22 08:55:59,012 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-22 08:55:59,013 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-22 08:55:59,013 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-22 08:55:59,014 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-22 08:55:59,015 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-22 08:55:59,015 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-22 08:55:59,016 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-22 08:55:59,017 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-22 08:55:59,017 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-22 08:55:59,018 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-22 08:55:59,019 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-22 08:55:59,020 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-22 08:55:59,021 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-22 08:55:59,022 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-22 08:55:59,023 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-22 08:55:59,024 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-22 08:55:59,024 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-22 08:55:59,026 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-22 08:55:59,026 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-22 08:55:59,026 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-22 08:55:59,027 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-22 08:55:59,027 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-22 08:55:59,028 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-22 08:55:59,028 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-22 08:55:59,029 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-22 08:55:59,029 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-22 08:55:59,030 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-22 08:55:59,030 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-22 08:55:59,031 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-22 08:55:59,031 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-22 08:55:59,031 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-22 08:55:59,031 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-22 08:55:59,032 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-22 08:55:59,033 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-22 08:55:59,033 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_922ff7c4-4484-4840-8c7d-d1b43babc108/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf [2019-10-22 08:55:59,044 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-22 08:55:59,044 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-22 08:55:59,045 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-22 08:55:59,045 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-22 08:55:59,045 INFO L138 SettingsManager]: * Use SBE=true [2019-10-22 08:55:59,045 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-10-22 08:55:59,046 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-10-22 08:55:59,046 INFO L138 SettingsManager]: * Use old map elimination=false [2019-10-22 08:55:59,046 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-10-22 08:55:59,046 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-10-22 08:55:59,046 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-10-22 08:55:59,046 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-22 08:55:59,046 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-10-22 08:55:59,047 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-22 08:55:59,047 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-22 08:55:59,047 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-10-22 08:55:59,047 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-10-22 08:55:59,047 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-10-22 08:55:59,047 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-22 08:55:59,047 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-10-22 08:55:59,048 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-22 08:55:59,048 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-10-22 08:55:59,048 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-22 08:55:59,048 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-22 08:55:59,048 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-10-22 08:55:59,048 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-22 08:55:59,049 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-22 08:55:59,049 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-10-22 08:55:59,049 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-10-22 08:55:59,050 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 -> /tmp/vcloud-vcloud-master/worker/working_dir_922ff7c4-4484-4840-8c7d-d1b43babc108/bin/uautomizer 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 -> e53f2fdb98621a674cb41b7388b3e8cc7db6ca72 [2019-10-22 08:55:59,071 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-22 08:55:59,080 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-22 08:55:59,083 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-22 08:55:59,084 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-22 08:55:59,085 INFO L275 PluginConnector]: CDTParser initialized [2019-10-22 08:55:59,085 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_922ff7c4-4484-4840-8c7d-d1b43babc108/bin/uautomizer/../../sv-benchmarks/c/termination-crafted/NonTerminationSimple7.c [2019-10-22 08:55:59,136 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_922ff7c4-4484-4840-8c7d-d1b43babc108/bin/uautomizer/data/fab2229de/602af43242b54974957610f9f73c7af4/FLAGd0d326dbd [2019-10-22 08:55:59,505 INFO L306 CDTParser]: Found 1 translation units. [2019-10-22 08:55:59,505 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_922ff7c4-4484-4840-8c7d-d1b43babc108/sv-benchmarks/c/termination-crafted/NonTerminationSimple7.c [2019-10-22 08:55:59,510 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_922ff7c4-4484-4840-8c7d-d1b43babc108/bin/uautomizer/data/fab2229de/602af43242b54974957610f9f73c7af4/FLAGd0d326dbd [2019-10-22 08:55:59,524 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_922ff7c4-4484-4840-8c7d-d1b43babc108/bin/uautomizer/data/fab2229de/602af43242b54974957610f9f73c7af4 [2019-10-22 08:55:59,528 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-22 08:55:59,529 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-10-22 08:55:59,530 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-22 08:55:59,530 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-22 08:55:59,533 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-22 08:55:59,534 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 08:55:59" (1/1) ... [2019-10-22 08:55:59,536 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4fb7bd26 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:55:59, skipping insertion in model container [2019-10-22 08:55:59,537 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 08:55:59" (1/1) ... [2019-10-22 08:55:59,543 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-22 08:55:59,563 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-22 08:55:59,687 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 08:55:59,691 INFO L188 MainTranslator]: Completed pre-run [2019-10-22 08:55:59,760 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 08:55:59,772 INFO L192 MainTranslator]: Completed translation [2019-10-22 08:55:59,773 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:55:59 WrapperNode [2019-10-22 08:55:59,773 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-22 08:55:59,773 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-10-22 08:55:59,774 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-10-22 08:55:59,774 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-10-22 08:55:59,782 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:55:59" (1/1) ... [2019-10-22 08:55:59,788 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:55:59" (1/1) ... [2019-10-22 08:55:59,804 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-10-22 08:55:59,805 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-22 08:55:59,805 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-22 08:55:59,805 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-22 08:55:59,813 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:55:59" (1/1) ... [2019-10-22 08:55:59,813 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:55:59" (1/1) ... [2019-10-22 08:55:59,814 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:55:59" (1/1) ... [2019-10-22 08:55:59,814 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:55:59" (1/1) ... [2019-10-22 08:55:59,816 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:55:59" (1/1) ... [2019-10-22 08:55:59,820 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:55:59" (1/1) ... [2019-10-22 08:55:59,822 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:55:59" (1/1) ... [2019-10-22 08:55:59,823 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-22 08:55:59,824 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-22 08:55:59,824 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-22 08:55:59,825 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-22 08:55:59,825 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:55:59" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_922ff7c4-4484-4840-8c7d-d1b43babc108/bin/uautomizer/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 [2019-10-22 08:55:59,885 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-22 08:55:59,885 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-22 08:55:59,985 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-22 08:55:59,985 INFO L284 CfgBuilder]: Removed 5 assume(true) statements. [2019-10-22 08:55:59,986 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:55:59 BoogieIcfgContainer [2019-10-22 08:55:59,986 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-22 08:55:59,986 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-10-22 08:55:59,987 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-10-22 08:55:59,989 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-10-22 08:55:59,990 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-10-22 08:55:59,990 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 22.10 08:55:59" (1/3) ... [2019-10-22 08:55:59,991 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5c795bd3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.10 08:55:59, skipping insertion in model container [2019-10-22 08:55:59,991 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-10-22 08:55:59,991 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:55:59" (2/3) ... [2019-10-22 08:55:59,992 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5c795bd3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.10 08:55:59, skipping insertion in model container [2019-10-22 08:55:59,992 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-10-22 08:55:59,992 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:55:59" (3/3) ... [2019-10-22 08:55:59,993 INFO L371 chiAutomizerObserver]: Analyzing ICFG NonTerminationSimple7.c [2019-10-22 08:56:00,036 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-10-22 08:56:00,037 INFO L357 BuchiCegarLoop]: Hoare is false [2019-10-22 08:56:00,037 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-10-22 08:56:00,037 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-22 08:56:00,037 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-22 08:56:00,037 INFO L361 BuchiCegarLoop]: Difference is false [2019-10-22 08:56:00,038 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-22 08:56:00,038 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-10-22 08:56:00,052 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states. [2019-10-22 08:56:00,070 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2019-10-22 08:56:00,070 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-10-22 08:56:00,070 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-10-22 08:56:00,076 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2019-10-22 08:56:00,076 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1] [2019-10-22 08:56:00,076 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-10-22 08:56:00,076 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states. [2019-10-22 08:56:00,077 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2019-10-22 08:56:00,077 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-10-22 08:56:00,077 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-10-22 08:56:00,077 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2019-10-22 08:56:00,077 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1] [2019-10-22 08:56:00,084 INFO L791 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~c~0, main_~x~0;havoc main_~c~0;havoc main_~x~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~c~0 := main_#t~nondet1;havoc main_#t~nondet1; 3#L15true assume 0 == main_~c~0; 7#L16-2true [2019-10-22 08:56:00,084 INFO L793 eck$LassoCheckResult]: Loop: 7#L16-2true assume !!(main_~x~0 >= 0);main_~x~0 := main_~x~0 + main_~c~0; 7#L16-2true [2019-10-22 08:56:00,089 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:56:00,090 INFO L82 PathProgramCache]: Analyzing trace with hash 996, now seen corresponding path program 1 times [2019-10-22 08:56:00,095 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:56:00,095 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [936497837] [2019-10-22 08:56:00,096 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:56:00,096 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:56:00,096 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:56:00,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:56:00,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:56:00,166 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-10-22 08:56:00,167 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:56:00,167 INFO L82 PathProgramCache]: Analyzing trace with hash 44, now seen corresponding path program 1 times [2019-10-22 08:56:00,168 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:56:00,168 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [240743748] [2019-10-22 08:56:00,168 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:56:00,168 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:56:00,168 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:56:00,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:56:00,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:56:00,177 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-10-22 08:56:00,178 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:56:00,178 INFO L82 PathProgramCache]: Analyzing trace with hash 30889, now seen corresponding path program 1 times [2019-10-22 08:56:00,179 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:56:00,179 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [299275002] [2019-10-22 08:56:00,179 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:56:00,179 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:56:00,179 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:56:00,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:56:00,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:56:00,192 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-10-22 08:56:00,257 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 22.10 08:56:00 BoogieIcfgContainer [2019-10-22 08:56:00,257 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-10-22 08:56:00,257 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-10-22 08:56:00,257 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-10-22 08:56:00,258 INFO L275 PluginConnector]: Witness Printer initialized [2019-10-22 08:56:00,258 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:55:59" (3/4) ... [2019-10-22 08:56:00,261 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2019-10-22 08:56:00,304 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_922ff7c4-4484-4840-8c7d-d1b43babc108/bin/uautomizer/witness.graphml [2019-10-22 08:56:00,304 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-10-22 08:56:00,307 INFO L168 Benchmark]: Toolchain (without parser) took 776.75 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 127.9 MB). Free memory was 949.9 MB in the beginning and 1.1 GB in the end (delta: -133.0 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 08:56:00,307 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 967.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 08:56:00,308 INFO L168 Benchmark]: CACSL2BoogieTranslator took 242.98 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 127.9 MB). Free memory was 949.9 MB in the beginning and 1.1 GB in the end (delta: -172.8 MB). Peak memory consumption was 22.9 MB. Max. memory is 11.5 GB. [2019-10-22 08:56:00,309 INFO L168 Benchmark]: Boogie Procedure Inliner took 30.97 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 08:56:00,309 INFO L168 Benchmark]: Boogie Preprocessor took 18.78 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 08:56:00,310 INFO L168 Benchmark]: RCFGBuilder took 162.20 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 17.0 MB). Peak memory consumption was 17.0 MB. Max. memory is 11.5 GB. [2019-10-22 08:56:00,311 INFO L168 Benchmark]: BuchiAutomizer took 270.60 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 17.5 MB). Peak memory consumption was 17.5 MB. Max. memory is 11.5 GB. [2019-10-22 08:56:00,312 INFO L168 Benchmark]: Witness Printer took 47.27 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-10-22 08:56:00,328 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 967.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 242.98 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 127.9 MB). Free memory was 949.9 MB in the beginning and 1.1 GB in the end (delta: -172.8 MB). Peak memory consumption was 22.9 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 30.97 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 18.78 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 162.20 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 17.0 MB). Peak memory consumption was 17.0 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 270.60 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 17.5 MB). Peak memory consumption was 17.5 MB. Max. memory is 11.5 GB. * Witness Printer took 47.27 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 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 0.2s and 1 iterations. TraceHistogramMax:1. Analysis of lassos took 0.1s. 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: 16]: 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@503c2290=0, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@442c0169=0, c=0, x=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 16]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L12] int c, x; [L13] x = __VERIFIER_nondet_int() [L14] c = __VERIFIER_nondet_int() [L15] COND TRUE c == 0 Loop: [L16] COND TRUE x >= 0 [L17] x = x + c End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...