./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-restricted-15/WhileSingle.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_a1454261-bece-44ae-a739-c68ebafe8276/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_a1454261-bece-44ae-a739-c68ebafe8276/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_a1454261-bece-44ae-a739-c68ebafe8276/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_a1454261-bece-44ae-a739-c68ebafe8276/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-restricted-15/WhileSingle.c -s /tmp/vcloud-vcloud-master/worker/run_dir_a1454261-bece-44ae-a739-c68ebafe8276/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_a1454261-bece-44ae-a739-c68ebafe8276/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 d930bfd65ed5d5f664b4fae9868151a005b1916b .......................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 19:47:40,849 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-15 19:47:40,851 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-15 19:47:40,865 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-15 19:47:40,865 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-15 19:47:40,866 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-15 19:47:40,868 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-15 19:47:40,877 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-15 19:47:40,881 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-15 19:47:40,885 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-15 19:47:40,886 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-15 19:47:40,887 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-15 19:47:40,888 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-15 19:47:40,890 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-15 19:47:40,890 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-15 19:47:40,891 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-15 19:47:40,892 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-15 19:47:40,893 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-15 19:47:40,895 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-15 19:47:40,899 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-15 19:47:40,902 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-15 19:47:40,904 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-15 19:47:40,906 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-15 19:47:40,906 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-15 19:47:40,909 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-15 19:47:40,910 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-15 19:47:40,910 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-15 19:47:40,911 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-15 19:47:40,912 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-15 19:47:40,912 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-15 19:47:40,913 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-15 19:47:40,913 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-15 19:47:40,914 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-15 19:47:40,915 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-15 19:47:40,916 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-15 19:47:40,916 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-15 19:47:40,917 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-15 19:47:40,917 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-15 19:47:40,917 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-15 19:47:40,918 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-15 19:47:40,918 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-15 19:47:40,920 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_a1454261-bece-44ae-a739-c68ebafe8276/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf [2019-11-15 19:47:40,946 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-15 19:47:40,947 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-15 19:47:40,949 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-15 19:47:40,949 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-15 19:47:40,949 INFO L138 SettingsManager]: * Use SBE=true [2019-11-15 19:47:40,949 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-11-15 19:47:40,950 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-11-15 19:47:40,950 INFO L138 SettingsManager]: * Use old map elimination=false [2019-11-15 19:47:40,950 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-11-15 19:47:40,950 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-11-15 19:47:40,951 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-11-15 19:47:40,952 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-15 19:47:40,952 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-15 19:47:40,952 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-15 19:47:40,952 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-15 19:47:40,953 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-11-15 19:47:40,953 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-11-15 19:47:40,953 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-11-15 19:47:40,953 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-15 19:47:40,953 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-11-15 19:47:40,954 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-15 19:47:40,954 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-11-15 19:47:40,954 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-15 19:47:40,955 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-15 19:47:40,955 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-11-15 19:47:40,955 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-15 19:47:40,955 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-15 19:47:40,956 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-11-15 19:47:40,958 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-11-15 19:47:40,959 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_a1454261-bece-44ae-a739-c68ebafe8276/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 -> d930bfd65ed5d5f664b4fae9868151a005b1916b [2019-11-15 19:47:40,996 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-15 19:47:41,007 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-15 19:47:41,010 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-15 19:47:41,011 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-15 19:47:41,012 INFO L275 PluginConnector]: CDTParser initialized [2019-11-15 19:47:41,013 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_a1454261-bece-44ae-a739-c68ebafe8276/bin/uautomizer/../../sv-benchmarks/c/termination-restricted-15/WhileSingle.c [2019-11-15 19:47:41,063 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_a1454261-bece-44ae-a739-c68ebafe8276/bin/uautomizer/data/ca4b8f2ae/9af3cc38071a4de683e7703ac9224796/FLAG12c4372ea [2019-11-15 19:47:41,453 INFO L306 CDTParser]: Found 1 translation units. [2019-11-15 19:47:41,454 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_a1454261-bece-44ae-a739-c68ebafe8276/sv-benchmarks/c/termination-restricted-15/WhileSingle.c [2019-11-15 19:47:41,459 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_a1454261-bece-44ae-a739-c68ebafe8276/bin/uautomizer/data/ca4b8f2ae/9af3cc38071a4de683e7703ac9224796/FLAG12c4372ea [2019-11-15 19:47:41,852 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_a1454261-bece-44ae-a739-c68ebafe8276/bin/uautomizer/data/ca4b8f2ae/9af3cc38071a4de683e7703ac9224796 [2019-11-15 19:47:41,854 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-15 19:47:41,855 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-15 19:47:41,856 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-15 19:47:41,856 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-15 19:47:41,860 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-15 19:47:41,861 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.11 07:47:41" (1/1) ... [2019-11-15 19:47:41,864 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@56110345 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 07:47:41, skipping insertion in model container [2019-11-15 19:47:41,864 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.11 07:47:41" (1/1) ... [2019-11-15 19:47:41,870 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-15 19:47:41,887 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-15 19:47:42,024 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-15 19:47:42,028 INFO L188 MainTranslator]: Completed pre-run [2019-11-15 19:47:42,097 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-15 19:47:42,109 INFO L192 MainTranslator]: Completed translation [2019-11-15 19:47:42,109 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 07:47:42 WrapperNode [2019-11-15 19:47:42,110 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-15 19:47:42,110 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-15 19:47:42,110 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-15 19:47:42,111 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-15 19:47:42,118 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 07:47:42" (1/1) ... [2019-11-15 19:47:42,123 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 07:47:42" (1/1) ... [2019-11-15 19:47:42,138 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-15 19:47:42,138 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-15 19:47:42,139 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-15 19:47:42,139 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-15 19:47:42,144 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 07:47:42" (1/1) ... [2019-11-15 19:47:42,145 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 07:47:42" (1/1) ... [2019-11-15 19:47:42,145 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 07:47:42" (1/1) ... [2019-11-15 19:47:42,145 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 07:47:42" (1/1) ... [2019-11-15 19:47:42,146 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 07:47:42" (1/1) ... [2019-11-15 19:47:42,149 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 07:47:42" (1/1) ... [2019-11-15 19:47:42,150 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 07:47:42" (1/1) ... [2019-11-15 19:47:42,151 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-15 19:47:42,151 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-15 19:47:42,151 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-15 19:47:42,151 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-15 19:47:42,152 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 07:47:42" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a1454261-bece-44ae-a739-c68ebafe8276/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 19:47:42,205 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-15 19:47:42,205 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-15 19:47:42,315 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-15 19:47:42,315 INFO L284 CfgBuilder]: Removed 5 assume(true) statements. [2019-11-15 19:47:42,316 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 07:47:42 BoogieIcfgContainer [2019-11-15 19:47:42,316 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-15 19:47:42,317 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-11-15 19:47:42,317 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-11-15 19:47:42,320 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-11-15 19:47:42,321 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-15 19:47:42,321 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 15.11 07:47:41" (1/3) ... [2019-11-15 19:47:42,322 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@9214da0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 15.11 07:47:42, skipping insertion in model container [2019-11-15 19:47:42,322 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-15 19:47:42,322 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 07:47:42" (2/3) ... [2019-11-15 19:47:42,323 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@9214da0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 15.11 07:47:42, skipping insertion in model container [2019-11-15 19:47:42,323 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-15 19:47:42,323 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 07:47:42" (3/3) ... [2019-11-15 19:47:42,325 INFO L371 chiAutomizerObserver]: Analyzing ICFG WhileSingle.c [2019-11-15 19:47:42,368 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-11-15 19:47:42,369 INFO L357 BuchiCegarLoop]: Hoare is false [2019-11-15 19:47:42,369 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-11-15 19:47:42,369 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-15 19:47:42,369 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-15 19:47:42,369 INFO L361 BuchiCegarLoop]: Difference is false [2019-11-15 19:47:42,369 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-15 19:47:42,369 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-11-15 19:47:42,382 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states. [2019-11-15 19:47:42,399 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2019-11-15 19:47:42,399 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-15 19:47:42,399 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-15 19:47:42,405 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1] [2019-11-15 19:47:42,405 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-11-15 19:47:42,405 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-11-15 19:47:42,406 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states. [2019-11-15 19:47:42,406 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2019-11-15 19:47:42,406 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-15 19:47:42,407 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-15 19:47:42,407 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1] [2019-11-15 19:47:42,407 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-11-15 19:47:42,414 INFO L791 eck$LassoCheckResult]: Stem: 5#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_#t~nondet0, main_~i~0;havoc main_~i~0;main_~i~0 := main_#t~nondet0;havoc main_#t~nondet0; 8#L10-2true [2019-11-15 19:47:42,414 INFO L793 eck$LassoCheckResult]: Loop: 8#L10-2true assume !!(main_~i~0 < 10); 4#L10true assume 3 != main_~i~0;main_~i~0 := 1 + main_~i~0; 8#L10-2true [2019-11-15 19:47:42,419 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 19:47:42,419 INFO L82 PathProgramCache]: Analyzing trace with hash 32, now seen corresponding path program 1 times [2019-11-15 19:47:42,426 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 19:47:42,426 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [511008316] [2019-11-15 19:47:42,426 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 19:47:42,426 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 19:47:42,427 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 19:47:42,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 19:47:42,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 19:47:42,499 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-15 19:47:42,500 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 19:47:42,500 INFO L82 PathProgramCache]: Analyzing trace with hash 1284, now seen corresponding path program 1 times [2019-11-15 19:47:42,500 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 19:47:42,500 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1906186735] [2019-11-15 19:47:42,500 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 19:47:42,501 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 19:47:42,501 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 19:47:42,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 19:47:42,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 19:47:42,513 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-15 19:47:42,514 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 19:47:42,514 INFO L82 PathProgramCache]: Analyzing trace with hash 31075, now seen corresponding path program 1 times [2019-11-15 19:47:42,515 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 19:47:42,515 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [94900929] [2019-11-15 19:47:42,515 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 19:47:42,515 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 19:47:42,515 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 19:47:42,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 19:47:42,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 19:47:42,527 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-15 19:47:42,574 INFO L210 LassoAnalysis]: Preferences: [2019-11-15 19:47:42,575 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2019-11-15 19:47:42,575 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-15 19:47:42,575 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2019-11-15 19:47:42,575 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2019-11-15 19:47:42,575 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-15 19:47:42,575 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-15 19:47:42,576 INFO L130 ssoRankerPreferences]: Path of dumped script: [2019-11-15 19:47:42,576 INFO L131 ssoRankerPreferences]: Filename of dumped script: WhileSingle.c_Iteration1_Loop [2019-11-15 19:47:42,576 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-15 19:47:42,576 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-15 19:47:42,600 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 19:47:42,618 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 19:47:42,623 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 19:47:42,784 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-15 19:47:42,784 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a1454261-bece-44ae-a739-c68ebafe8276/bin/uautomizer/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-15 19:47:42,794 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-15 19:47:42,795 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-15 19:47:42,804 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-15 19:47:42,804 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_1=1} Honda state: {v_rep~unnamed0~0~true_1=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a1454261-bece-44ae-a739-c68ebafe8276/bin/uautomizer/z3 Starting monitored process 3 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 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-15 19:47:42,810 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-15 19:47:42,810 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-15 19:47:42,814 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-15 19:47:42,814 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_1=0} Honda state: {v_rep~unnamed0~0~false_1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a1454261-bece-44ae-a739-c68ebafe8276/bin/uautomizer/z3 Starting monitored process 4 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 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-15 19:47:42,822 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-15 19:47:42,822 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a1454261-bece-44ae-a739-c68ebafe8276/bin/uautomizer/z3 Starting monitored process 5 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 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-15 19:47:42,831 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-11-15 19:47:42,832 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-15 19:47:42,848 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-11-15 19:47:42,850 INFO L210 LassoAnalysis]: Preferences: [2019-11-15 19:47:42,850 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2019-11-15 19:47:42,850 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-15 19:47:42,850 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2019-11-15 19:47:42,850 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2019-11-15 19:47:42,851 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-15 19:47:42,851 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-15 19:47:42,851 INFO L130 ssoRankerPreferences]: Path of dumped script: [2019-11-15 19:47:42,851 INFO L131 ssoRankerPreferences]: Filename of dumped script: WhileSingle.c_Iteration1_Loop [2019-11-15 19:47:42,851 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-15 19:47:42,851 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-15 19:47:42,852 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 19:47:42,858 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 19:47:42,867 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 19:47:42,984 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-15 19:47:42,989 INFO L489 LassoAnalysis]: Using template 'affine'. [2019-11-15 19:47:42,990 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-15 19:47:42,992 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-11-15 19:47:42,992 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-15 19:47:42,992 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-15 19:47:42,992 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-15 19:47:42,997 INFO L400 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-15 19:47:42,997 INFO L401 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-15 19:47:43,005 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-11-15 19:47:43,006 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-15 19:47:43,007 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-11-15 19:47:43,007 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-15 19:47:43,007 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-15 19:47:43,007 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-15 19:47:43,010 INFO L400 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-15 19:47:43,010 INFO L401 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-15 19:47:43,017 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-11-15 19:47:43,018 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-15 19:47:43,018 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-11-15 19:47:43,019 INFO L350 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-15 19:47:43,019 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-15 19:47:43,019 INFO L203 nArgumentSynthesizer]: 2 loop disjuncts [2019-11-15 19:47:43,020 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-15 19:47:43,021 INFO L400 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2019-11-15 19:47:43,021 INFO L401 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-15 19:47:43,035 INFO L419 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-15 19:47:43,045 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2019-11-15 19:47:43,054 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2019-11-15 19:47:43,055 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-11-15 19:47:43,056 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2019-11-15 19:47:43,056 INFO L510 LassoAnalysis]: Proved termination. [2019-11-15 19:47:43,056 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0) = -2*ULTIMATE.start_main_~i~0 + 19 Supporting invariants [] [2019-11-15 19:47:43,059 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2019-11-15 19:47:43,085 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 19:47:43,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 19:47:43,095 WARN L254 TraceCheckSpWp]: Trace formula consists of 4 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-15 19:47:43,096 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 19:47:43,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 19:47:43,105 WARN L254 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-15 19:47:43,106 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 19:47:43,121 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 19:47:43,137 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2019-11-15 19:47:43,138 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 7 states. Second operand 3 states. [2019-11-15 19:47:43,195 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 7 states.. Second operand 3 states. Result 20 states and 28 transitions. Complement of second has 7 states. [2019-11-15 19:47:43,197 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2019-11-15 19:47:43,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-11-15 19:47:43,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 15 transitions. [2019-11-15 19:47:43,200 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 15 transitions. Stem has 1 letters. Loop has 2 letters. [2019-11-15 19:47:43,201 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-15 19:47:43,201 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 15 transitions. Stem has 3 letters. Loop has 2 letters. [2019-11-15 19:47:43,202 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-15 19:47:43,202 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 15 transitions. Stem has 1 letters. Loop has 4 letters. [2019-11-15 19:47:43,202 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-15 19:47:43,203 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 20 states and 28 transitions. [2019-11-15 19:47:43,205 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2019-11-15 19:47:43,213 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 20 states to 8 states and 11 transitions. [2019-11-15 19:47:43,214 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 4 [2019-11-15 19:47:43,215 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 5 [2019-11-15 19:47:43,215 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 11 transitions. [2019-11-15 19:47:43,216 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-11-15 19:47:43,216 INFO L688 BuchiCegarLoop]: Abstraction has 8 states and 11 transitions. [2019-11-15 19:47:43,232 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states and 11 transitions. [2019-11-15 19:47:43,237 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 7. [2019-11-15 19:47:43,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2019-11-15 19:47:43,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 10 transitions. [2019-11-15 19:47:43,239 INFO L711 BuchiCegarLoop]: Abstraction has 7 states and 10 transitions. [2019-11-15 19:47:43,239 INFO L591 BuchiCegarLoop]: Abstraction has 7 states and 10 transitions. [2019-11-15 19:47:43,239 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-11-15 19:47:43,239 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states and 10 transitions. [2019-11-15 19:47:43,240 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2019-11-15 19:47:43,240 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-15 19:47:43,240 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-15 19:47:43,240 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2019-11-15 19:47:43,240 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-11-15 19:47:43,241 INFO L791 eck$LassoCheckResult]: Stem: 68#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_~i~0;havoc main_~i~0;main_~i~0 := main_#t~nondet0;havoc main_#t~nondet0; 69#L10-2 assume !!(main_~i~0 < 10); 63#L10 [2019-11-15 19:47:43,241 INFO L793 eck$LassoCheckResult]: Loop: 63#L10 assume !(3 != main_~i~0); 64#L10-2 assume !!(main_~i~0 < 10); 63#L10 [2019-11-15 19:47:43,241 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 19:47:43,241 INFO L82 PathProgramCache]: Analyzing trace with hash 1002, now seen corresponding path program 1 times [2019-11-15 19:47:43,241 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 19:47:43,242 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1599635668] [2019-11-15 19:47:43,242 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 19:47:43,242 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 19:47:43,242 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 19:47:43,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 19:47:43,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 19:47:43,258 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-15 19:47:43,259 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 19:47:43,259 INFO L82 PathProgramCache]: Analyzing trace with hash 1436, now seen corresponding path program 1 times [2019-11-15 19:47:43,259 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 19:47:43,260 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [825319642] [2019-11-15 19:47:43,260 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 19:47:43,260 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 19:47:43,260 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 19:47:43,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 19:47:43,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 19:47:43,273 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-15 19:47:43,275 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 19:47:43,275 INFO L82 PathProgramCache]: Analyzing trace with hash 963397, now seen corresponding path program 1 times [2019-11-15 19:47:43,275 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 19:47:43,275 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1456891167] [2019-11-15 19:47:43,275 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 19:47:43,276 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 19:47:43,276 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 19:47:43,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 19:47:43,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 19:47:43,281 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-15 19:47:43,314 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 15.11 07:47:43 BoogieIcfgContainer [2019-11-15 19:47:43,314 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-11-15 19:47:43,315 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-15 19:47:43,315 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-15 19:47:43,315 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-15 19:47:43,316 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 07:47:42" (3/4) ... [2019-11-15 19:47:43,318 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2019-11-15 19:47:43,348 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_a1454261-bece-44ae-a739-c68ebafe8276/bin/uautomizer/witness.graphml [2019-11-15 19:47:43,348 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-15 19:47:43,351 INFO L168 Benchmark]: Toolchain (without parser) took 1494.52 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 141.0 MB). Free memory was 946.5 MB in the beginning and 1.0 GB in the end (delta: -79.2 MB). Peak memory consumption was 61.8 MB. Max. memory is 11.5 GB. [2019-11-15 19:47:43,351 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 1.0 GB. Free memory is still 963.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-15 19:47:43,352 INFO L168 Benchmark]: CACSL2BoogieTranslator took 254.00 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 141.0 MB). Free memory was 946.5 MB in the beginning and 1.1 GB in the end (delta: -188.0 MB). Peak memory consumption was 23.3 MB. Max. memory is 11.5 GB. [2019-11-15 19:47:43,352 INFO L168 Benchmark]: Boogie Procedure Inliner took 27.95 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. [2019-11-15 19:47:43,353 INFO L168 Benchmark]: Boogie Preprocessor took 12.46 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. [2019-11-15 19:47:43,353 INFO L168 Benchmark]: RCFGBuilder took 165.32 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: 18.3 MB). Peak memory consumption was 18.3 MB. Max. memory is 11.5 GB. [2019-11-15 19:47:43,354 INFO L168 Benchmark]: BuchiAutomizer took 997.68 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 85.1 MB). Peak memory consumption was 85.1 MB. Max. memory is 11.5 GB. [2019-11-15 19:47:43,354 INFO L168 Benchmark]: Witness Printer took 33.81 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-11-15 19:47:43,357 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 1.0 GB. Free memory is still 963.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 254.00 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 141.0 MB). Free memory was 946.5 MB in the beginning and 1.1 GB in the end (delta: -188.0 MB). Peak memory consumption was 23.3 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 27.95 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 12.46 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 165.32 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: 18.3 MB). Peak memory consumption was 18.3 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 997.68 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 85.1 MB). Peak memory consumption was 85.1 MB. Max. memory is 11.5 GB. * Witness Printer took 33.81 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 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 Your program was decomposed into 1 terminating modules (0 trivial, 1 deterministic, 0 nondeterministic) and one nonterminating remainder module.One deterministic module has affine ranking function -2 * i + 19 and consists of 5 locations. The remainder module has 7 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 0.9s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 0.7s. Construction of modules took 0.0s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 3. Minimization of det autom 0. Minimization of nondet autom 1. Automata minimization 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 7 states and ocurred in iteration 1. Nontrivial modules had stage [1, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 4 SDtfs, 7 SDslu, 6 SDs, 0 SdLazy, 10 SolverSat, 3 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont1 unkn0 SFLI0 SFLT1 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital14 mio100 ax185 hnf100 lsp53 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq171 hnf95 smp100 dnf165 smp92 tf105 neg94 sie117 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 15ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 2 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 1 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 10]: 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@7d03a669=0, \result=0, i=3} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 10]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L6] int i; [L7] i = __VERIFIER_nondet_int() [L9] COND TRUE i < 10 Loop: [L10] COND FALSE !(i != 3) [L9] COND TRUE i < 10 End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...