./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-restricted-15/Loop-2.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version cad46833 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_fe7958ff-b22c-4dd8-a963-c2d12ea318e7/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_fe7958ff-b22c-4dd8-a963-c2d12ea318e7/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_fe7958ff-b22c-4dd8-a963-c2d12ea318e7/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_fe7958ff-b22c-4dd8-a963-c2d12ea318e7/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-restricted-15/Loop-2.c -s /tmp/vcloud-vcloud-master/worker/run_dir_fe7958ff-b22c-4dd8-a963-c2d12ea318e7/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_fe7958ff-b22c-4dd8-a963-c2d12ea318e7/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 079a94391776bb57925fadb38be78dd5e66e0a82 ....................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM) --- Real Ultimate output --- This is Ultimate 0.1.24-cad4683 [2019-11-15 20:16:05,781 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-15 20:16:05,782 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-15 20:16:05,796 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-15 20:16:05,796 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-15 20:16:05,798 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-15 20:16:05,799 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-15 20:16:05,808 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-15 20:16:05,812 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-15 20:16:05,816 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-15 20:16:05,817 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-15 20:16:05,818 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-15 20:16:05,818 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-15 20:16:05,820 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-15 20:16:05,821 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-15 20:16:05,822 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-15 20:16:05,822 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-15 20:16:05,823 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-15 20:16:05,825 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-15 20:16:05,828 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-15 20:16:05,831 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-15 20:16:05,833 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-15 20:16:05,835 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-15 20:16:05,836 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-15 20:16:05,838 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-15 20:16:05,839 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-15 20:16:05,839 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-15 20:16:05,840 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-15 20:16:05,840 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-15 20:16:05,841 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-15 20:16:05,841 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-15 20:16:05,842 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-15 20:16:05,842 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-15 20:16:05,843 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-15 20:16:05,844 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-15 20:16:05,844 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-15 20:16:05,845 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-15 20:16:05,845 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-15 20:16:05,845 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-15 20:16:05,846 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-15 20:16:05,846 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-15 20:16:05,847 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_fe7958ff-b22c-4dd8-a963-c2d12ea318e7/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf [2019-11-15 20:16:05,873 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-15 20:16:05,873 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-15 20:16:05,874 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-15 20:16:05,875 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-15 20:16:05,875 INFO L138 SettingsManager]: * Use SBE=true [2019-11-15 20:16:05,875 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-11-15 20:16:05,875 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-11-15 20:16:05,875 INFO L138 SettingsManager]: * Use old map elimination=false [2019-11-15 20:16:05,876 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-11-15 20:16:05,876 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-11-15 20:16:05,876 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-11-15 20:16:05,876 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-15 20:16:05,876 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-15 20:16:05,877 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-15 20:16:05,877 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-15 20:16:05,877 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-11-15 20:16:05,877 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-11-15 20:16:05,877 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-11-15 20:16:05,878 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-15 20:16:05,878 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-11-15 20:16:05,878 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-15 20:16:05,878 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-11-15 20:16:05,878 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-15 20:16:05,878 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-15 20:16:05,879 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-11-15 20:16:05,879 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-15 20:16:05,879 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-15 20:16:05,879 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-11-15 20:16:05,880 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-11-15 20:16:05,880 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/run_dir_fe7958ff-b22c-4dd8-a963-c2d12ea318e7/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 -> 079a94391776bb57925fadb38be78dd5e66e0a82 [2019-11-15 20:16:05,928 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-15 20:16:05,942 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-15 20:16:05,946 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-15 20:16:05,947 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-15 20:16:05,948 INFO L275 PluginConnector]: CDTParser initialized [2019-11-15 20:16:05,950 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_fe7958ff-b22c-4dd8-a963-c2d12ea318e7/bin/uautomizer/../../sv-benchmarks/c/termination-restricted-15/Loop-2.c [2019-11-15 20:16:06,006 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_fe7958ff-b22c-4dd8-a963-c2d12ea318e7/bin/uautomizer/data/b9f1276f3/f886eef08ee44ae8a2dbf400b03953ce/FLAGf2bbef11b [2019-11-15 20:16:06,391 INFO L306 CDTParser]: Found 1 translation units. [2019-11-15 20:16:06,392 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_fe7958ff-b22c-4dd8-a963-c2d12ea318e7/sv-benchmarks/c/termination-restricted-15/Loop-2.c [2019-11-15 20:16:06,397 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_fe7958ff-b22c-4dd8-a963-c2d12ea318e7/bin/uautomizer/data/b9f1276f3/f886eef08ee44ae8a2dbf400b03953ce/FLAGf2bbef11b [2019-11-15 20:16:06,763 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_fe7958ff-b22c-4dd8-a963-c2d12ea318e7/bin/uautomizer/data/b9f1276f3/f886eef08ee44ae8a2dbf400b03953ce [2019-11-15 20:16:06,772 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-15 20:16:06,773 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-15 20:16:06,774 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-15 20:16:06,774 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-15 20:16:06,777 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-15 20:16:06,778 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.11 08:16:06" (1/1) ... [2019-11-15 20:16:06,780 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7a1e772c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:16:06, skipping insertion in model container [2019-11-15 20:16:06,781 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.11 08:16:06" (1/1) ... [2019-11-15 20:16:06,787 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-15 20:16:06,798 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-15 20:16:06,951 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-15 20:16:06,957 INFO L188 MainTranslator]: Completed pre-run [2019-11-15 20:16:07,051 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-15 20:16:07,064 INFO L192 MainTranslator]: Completed translation [2019-11-15 20:16:07,064 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:16:07 WrapperNode [2019-11-15 20:16:07,065 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-15 20:16:07,065 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-15 20:16:07,065 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-15 20:16:07,066 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-15 20:16:07,074 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:16:07" (1/1) ... [2019-11-15 20:16:07,080 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:16:07" (1/1) ... [2019-11-15 20:16:07,096 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-15 20:16:07,097 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-15 20:16:07,097 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-15 20:16:07,097 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-15 20:16:07,103 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:16:07" (1/1) ... [2019-11-15 20:16:07,103 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:16:07" (1/1) ... [2019-11-15 20:16:07,103 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:16:07" (1/1) ... [2019-11-15 20:16:07,104 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:16:07" (1/1) ... [2019-11-15 20:16:07,105 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:16:07" (1/1) ... [2019-11-15 20:16:07,109 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:16:07" (1/1) ... [2019-11-15 20:16:07,109 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:16:07" (1/1) ... [2019-11-15 20:16:07,111 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-15 20:16:07,111 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-15 20:16:07,111 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-15 20:16:07,111 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-15 20:16:07,112 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:16:07" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_fe7958ff-b22c-4dd8-a963-c2d12ea318e7/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 [2019-11-15 20:16:07,162 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-15 20:16:07,162 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-15 20:16:07,295 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-15 20:16:07,295 INFO L284 CfgBuilder]: Removed 5 assume(true) statements. [2019-11-15 20:16:07,296 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 08:16:07 BoogieIcfgContainer [2019-11-15 20:16:07,296 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-15 20:16:07,297 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-11-15 20:16:07,297 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-11-15 20:16:07,300 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-11-15 20:16:07,301 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-15 20:16:07,301 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 15.11 08:16:06" (1/3) ... [2019-11-15 20:16:07,302 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2186b5ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 15.11 08:16:07, skipping insertion in model container [2019-11-15 20:16:07,302 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-15 20:16:07,302 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:16:07" (2/3) ... [2019-11-15 20:16:07,303 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2186b5ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 15.11 08:16:07, skipping insertion in model container [2019-11-15 20:16:07,305 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-15 20:16:07,305 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 08:16:07" (3/3) ... [2019-11-15 20:16:07,306 INFO L371 chiAutomizerObserver]: Analyzing ICFG Loop-2.c [2019-11-15 20:16:07,354 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-11-15 20:16:07,354 INFO L357 BuchiCegarLoop]: Hoare is false [2019-11-15 20:16:07,354 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-11-15 20:16:07,354 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-15 20:16:07,355 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-15 20:16:07,355 INFO L361 BuchiCegarLoop]: Difference is false [2019-11-15 20:16:07,355 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-15 20:16:07,355 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-11-15 20:16:07,369 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 6 states. [2019-11-15 20:16:07,393 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2019-11-15 20:16:07,393 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-15 20:16:07,393 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-15 20:16:07,399 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1] [2019-11-15 20:16:07,399 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1] [2019-11-15 20:16:07,399 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-11-15 20:16:07,399 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 6 states. [2019-11-15 20:16:07,400 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2019-11-15 20:16:07,400 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-15 20:16:07,400 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-15 20:16:07,401 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1] [2019-11-15 20:16:07,401 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1] [2019-11-15 20:16:07,407 INFO L791 eck$LassoCheckResult]: Stem: 5#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_~a~0, main_~b~0, main_~i~0;havoc main_~a~0;havoc main_~b~0;havoc main_~i~0;main_~a~0 := 5;main_~b~0 := 3;main_~i~0 := 0; 6#L13-2true [2019-11-15 20:16:07,408 INFO L793 eck$LassoCheckResult]: Loop: 6#L13-2true assume !!(main_~i~0 < 10);main_~i~0 := main_~i~0; 6#L13-2true [2019-11-15 20:16:07,413 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 20:16:07,413 INFO L82 PathProgramCache]: Analyzing trace with hash 32, now seen corresponding path program 1 times [2019-11-15 20:16:07,421 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 20:16:07,421 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [968355898] [2019-11-15 20:16:07,421 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 20:16:07,421 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 20:16:07,422 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 20:16:07,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 20:16:07,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 20:16:07,495 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-15 20:16:07,496 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 20:16:07,496 INFO L82 PathProgramCache]: Analyzing trace with hash 41, now seen corresponding path program 1 times [2019-11-15 20:16:07,497 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 20:16:07,497 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [309641177] [2019-11-15 20:16:07,497 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 20:16:07,497 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 20:16:07,497 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 20:16:07,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 20:16:07,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 20:16:07,506 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-15 20:16:07,507 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 20:16:07,507 INFO L82 PathProgramCache]: Analyzing trace with hash 1002, now seen corresponding path program 1 times [2019-11-15 20:16:07,508 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 20:16:07,508 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [195120286] [2019-11-15 20:16:07,508 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 20:16:07,508 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 20:16:07,508 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 20:16:07,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 20:16:07,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 20:16:07,521 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-15 20:16:07,621 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 15.11 08:16:07 BoogieIcfgContainer [2019-11-15 20:16:07,624 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-11-15 20:16:07,625 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-15 20:16:07,625 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-15 20:16:07,625 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-15 20:16:07,626 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 08:16:07" (3/4) ... [2019-11-15 20:16:07,629 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2019-11-15 20:16:07,681 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_fe7958ff-b22c-4dd8-a963-c2d12ea318e7/bin/uautomizer/witness.graphml [2019-11-15 20:16:07,681 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-15 20:16:07,683 INFO L168 Benchmark]: Toolchain (without parser) took 909.85 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 165.2 MB). Free memory was 948.8 MB in the beginning and 1.1 GB in the end (delta: -171.4 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-11-15 20:16:07,684 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-15 20:16:07,685 INFO L168 Benchmark]: CACSL2BoogieTranslator took 291.47 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 165.2 MB). Free memory was 948.8 MB in the beginning and 1.2 GB in the end (delta: -211.2 MB). Peak memory consumption was 23.1 MB. Max. memory is 11.5 GB. [2019-11-15 20:16:07,685 INFO L168 Benchmark]: Boogie Procedure Inliner took 31.02 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-15 20:16:07,685 INFO L168 Benchmark]: Boogie Preprocessor took 14.29 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-15 20:16:07,686 INFO L168 Benchmark]: RCFGBuilder took 185.44 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 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. [2019-11-15 20:16:07,687 INFO L168 Benchmark]: BuchiAutomizer took 327.34 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. [2019-11-15 20:16:07,687 INFO L168 Benchmark]: Witness Printer took 56.84 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. [2019-11-15 20:16:07,691 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 291.47 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 165.2 MB). Free memory was 948.8 MB in the beginning and 1.2 GB in the end (delta: -211.2 MB). Peak memory consumption was 23.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 31.02 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 14.29 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 185.44 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 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 327.34 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 56.84 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 0.2s. Construction of modules took 0.0s. Büchi inclusion checks took 0.0s. Highest rank in rank-based complementation 0. Minimization of det autom 0. Minimization of nondet autom 0. Automata minimization No data available. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: No data available LassoAnalysisResults: nont1 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 13]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {} State at position 1 is {a=5, \result=0, b=3, i=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 13]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L6] int a; [L7] int b; [L8] int i; [L9] a = 5 [L10] b = 3 [L11] i = 0 Loop: [L13] COND TRUE i < 10 [L13] i = i + 0 End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...