./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-crafted/Division-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/working_dir_e0785574-807b-4932-82d5-22b3723e14de/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_e0785574-807b-4932-82d5-22b3723e14de/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_e0785574-807b-4932-82d5-22b3723e14de/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_e0785574-807b-4932-82d5-22b3723e14de/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-crafted/Division-2.c -s /tmp/vcloud-vcloud-master/worker/working_dir_e0785574-807b-4932-82d5-22b3723e14de/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_e0785574-807b-4932-82d5-22b3723e14de/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 d089d3bcb050ed43a9f47a1e8909790d01358f90 .................................................................................................................................................................................................................................................................. 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 09:02:24,882 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-22 09:02:24,886 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-22 09:02:24,899 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-22 09:02:24,899 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-22 09:02:24,900 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-22 09:02:24,901 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-22 09:02:24,902 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-22 09:02:24,906 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-22 09:02:24,906 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-22 09:02:24,907 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-22 09:02:24,908 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-22 09:02:24,908 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-22 09:02:24,909 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-22 09:02:24,909 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-22 09:02:24,910 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-22 09:02:24,911 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-22 09:02:24,917 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-22 09:02:24,918 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-22 09:02:24,920 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-22 09:02:24,921 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-22 09:02:24,922 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-22 09:02:24,923 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-22 09:02:24,924 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-22 09:02:24,926 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-22 09:02:24,926 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-22 09:02:24,927 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-22 09:02:24,928 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-22 09:02:24,928 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-22 09:02:24,929 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-22 09:02:24,929 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-22 09:02:24,930 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-22 09:02:24,931 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-22 09:02:24,931 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-22 09:02:24,932 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-22 09:02:24,933 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-22 09:02:24,933 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-22 09:02:24,933 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-22 09:02:24,933 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-22 09:02:24,934 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-22 09:02:24,935 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-22 09:02:24,939 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_e0785574-807b-4932-82d5-22b3723e14de/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf [2019-10-22 09:02:24,952 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-22 09:02:24,952 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-22 09:02:24,953 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-22 09:02:24,954 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-22 09:02:24,954 INFO L138 SettingsManager]: * Use SBE=true [2019-10-22 09:02:24,954 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-10-22 09:02:24,954 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-10-22 09:02:24,954 INFO L138 SettingsManager]: * Use old map elimination=false [2019-10-22 09:02:24,954 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-10-22 09:02:24,954 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-10-22 09:02:24,955 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-10-22 09:02:24,955 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-22 09:02:24,955 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-10-22 09:02:24,955 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-22 09:02:24,955 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-22 09:02:24,956 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-10-22 09:02:24,956 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-10-22 09:02:24,956 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-10-22 09:02:24,956 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-22 09:02:24,956 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-10-22 09:02:24,956 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-22 09:02:24,956 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-10-22 09:02:24,957 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-22 09:02:24,957 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-22 09:02:24,957 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-10-22 09:02:24,957 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-22 09:02:24,957 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-22 09:02:24,957 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-10-22 09:02:24,958 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-10-22 09:02:24,958 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_e0785574-807b-4932-82d5-22b3723e14de/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 -> d089d3bcb050ed43a9f47a1e8909790d01358f90 [2019-10-22 09:02:24,986 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-22 09:02:24,998 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-22 09:02:25,001 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-22 09:02:25,002 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-22 09:02:25,002 INFO L275 PluginConnector]: CDTParser initialized [2019-10-22 09:02:25,005 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_e0785574-807b-4932-82d5-22b3723e14de/bin/uautomizer/../../sv-benchmarks/c/termination-crafted/Division-2.c [2019-10-22 09:02:25,053 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_e0785574-807b-4932-82d5-22b3723e14de/bin/uautomizer/data/f1bc473cd/2f8161e710d943d4a7f62f5a5794cb64/FLAGcaea0d3c9 [2019-10-22 09:02:25,455 INFO L306 CDTParser]: Found 1 translation units. [2019-10-22 09:02:25,456 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_e0785574-807b-4932-82d5-22b3723e14de/sv-benchmarks/c/termination-crafted/Division-2.c [2019-10-22 09:02:25,462 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_e0785574-807b-4932-82d5-22b3723e14de/bin/uautomizer/data/f1bc473cd/2f8161e710d943d4a7f62f5a5794cb64/FLAGcaea0d3c9 [2019-10-22 09:02:25,848 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_e0785574-807b-4932-82d5-22b3723e14de/bin/uautomizer/data/f1bc473cd/2f8161e710d943d4a7f62f5a5794cb64 [2019-10-22 09:02:25,851 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-22 09:02:25,852 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-10-22 09:02:25,855 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-22 09:02:25,855 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-22 09:02:25,859 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-22 09:02:25,859 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 09:02:25" (1/1) ... [2019-10-22 09:02:25,862 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@24502ab9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:02:25, skipping insertion in model container [2019-10-22 09:02:25,862 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 09:02:25" (1/1) ... [2019-10-22 09:02:25,867 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-22 09:02:25,877 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-22 09:02:25,984 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 09:02:25,987 INFO L188 MainTranslator]: Completed pre-run [2019-10-22 09:02:26,052 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 09:02:26,068 INFO L192 MainTranslator]: Completed translation [2019-10-22 09:02:26,069 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:02:26 WrapperNode [2019-10-22 09:02:26,069 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-22 09:02:26,070 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-10-22 09:02:26,070 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-10-22 09:02:26,070 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-10-22 09:02:26,078 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:02:26" (1/1) ... [2019-10-22 09:02:26,088 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:02:26" (1/1) ... [2019-10-22 09:02:26,099 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-10-22 09:02:26,100 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-22 09:02:26,100 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-22 09:02:26,100 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-22 09:02:26,106 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:02:26" (1/1) ... [2019-10-22 09:02:26,106 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:02:26" (1/1) ... [2019-10-22 09:02:26,106 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:02:26" (1/1) ... [2019-10-22 09:02:26,107 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:02:26" (1/1) ... [2019-10-22 09:02:26,108 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:02:26" (1/1) ... [2019-10-22 09:02:26,112 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:02:26" (1/1) ... [2019-10-22 09:02:26,112 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:02:26" (1/1) ... [2019-10-22 09:02:26,113 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-22 09:02:26,113 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-22 09:02:26,114 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-22 09:02:26,114 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-22 09:02:26,114 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:02:26" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_e0785574-807b-4932-82d5-22b3723e14de/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 09:02:26,163 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-22 09:02:26,164 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-22 09:02:26,285 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-22 09:02:26,286 INFO L284 CfgBuilder]: Removed 5 assume(true) statements. [2019-10-22 09:02:26,287 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 09:02:26 BoogieIcfgContainer [2019-10-22 09:02:26,287 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-22 09:02:26,287 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-10-22 09:02:26,287 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-10-22 09:02:26,291 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-10-22 09:02:26,291 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-10-22 09:02:26,292 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 22.10 09:02:25" (1/3) ... [2019-10-22 09:02:26,293 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@718813de and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.10 09:02:26, skipping insertion in model container [2019-10-22 09:02:26,293 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-10-22 09:02:26,293 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:02:26" (2/3) ... [2019-10-22 09:02:26,293 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@718813de and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.10 09:02:26, skipping insertion in model container [2019-10-22 09:02:26,294 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-10-22 09:02:26,294 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 09:02:26" (3/3) ... [2019-10-22 09:02:26,295 INFO L371 chiAutomizerObserver]: Analyzing ICFG Division-2.c [2019-10-22 09:02:26,341 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-10-22 09:02:26,341 INFO L357 BuchiCegarLoop]: Hoare is false [2019-10-22 09:02:26,342 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-10-22 09:02:26,342 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-22 09:02:26,342 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-22 09:02:26,342 INFO L361 BuchiCegarLoop]: Difference is false [2019-10-22 09:02:26,342 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-22 09:02:26,342 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-10-22 09:02:26,355 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 6 states. [2019-10-22 09:02:26,374 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2019-10-22 09:02:26,375 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-10-22 09:02:26,375 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-10-22 09:02:26,380 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1] [2019-10-22 09:02:26,380 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1] [2019-10-22 09:02:26,380 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-10-22 09:02:26,380 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 6 states. [2019-10-22 09:02:26,380 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2019-10-22 09:02:26,381 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-10-22 09:02:26,381 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-10-22 09:02:26,381 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1] [2019-10-22 09:02:26,381 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1] [2019-10-22 09:02:26,386 INFO L791 eck$LassoCheckResult]: Stem: 3#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_#t~nondet0, main_~y~0;main_~y~0 := main_#t~nondet0;havoc main_#t~nondet0; 6#L14-2true [2019-10-22 09:02:26,386 INFO L793 eck$LassoCheckResult]: Loop: 6#L14-2true assume !!(main_~y~0 >= 0 && main_~y~0 <= 10);main_~y~0 := (if 1 + 2 * main_~y~0 < 0 && 0 != (1 + 2 * main_~y~0) % 2 then 1 + (1 + 2 * main_~y~0) / 2 else (1 + 2 * main_~y~0) / 2); 6#L14-2true [2019-10-22 09:02:26,390 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:02:26,390 INFO L82 PathProgramCache]: Analyzing trace with hash 32, now seen corresponding path program 1 times [2019-10-22 09:02:26,395 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:02:26,396 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1962046439] [2019-10-22 09:02:26,396 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:02:26,396 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:02:26,396 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:02:26,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 09:02:26,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 09:02:26,462 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-10-22 09:02:26,463 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:02:26,463 INFO L82 PathProgramCache]: Analyzing trace with hash 41, now seen corresponding path program 1 times [2019-10-22 09:02:26,463 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:02:26,464 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1660188163] [2019-10-22 09:02:26,464 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:02:26,464 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:02:26,464 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:02:26,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 09:02:26,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 09:02:26,485 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-10-22 09:02:26,487 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:02:26,487 INFO L82 PathProgramCache]: Analyzing trace with hash 1002, now seen corresponding path program 1 times [2019-10-22 09:02:26,487 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:02:26,487 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1892131014] [2019-10-22 09:02:26,487 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:02:26,488 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:02:26,488 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:02:26,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 09:02:26,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 09:02:26,499 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-10-22 09:02:26,587 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 22.10 09:02:26 BoogieIcfgContainer [2019-10-22 09:02:26,588 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-10-22 09:02:26,588 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-10-22 09:02:26,588 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-10-22 09:02:26,588 INFO L275 PluginConnector]: Witness Printer initialized [2019-10-22 09:02:26,589 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 09:02:26" (3/4) ... [2019-10-22 09:02:26,592 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2019-10-22 09:02:26,632 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_e0785574-807b-4932-82d5-22b3723e14de/bin/uautomizer/witness.graphml [2019-10-22 09:02:26,632 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-10-22 09:02:26,634 INFO L168 Benchmark]: Toolchain (without parser) took 781.10 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 131.6 MB). Free memory was 941.8 MB in the beginning and 1.1 GB in the end (delta: -144.7 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 09:02:26,635 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 1.0 GB. Free memory is still 960.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 09:02:26,636 INFO L168 Benchmark]: CACSL2BoogieTranslator took 214.01 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 131.6 MB). Free memory was 940.4 MB in the beginning and 1.1 GB in the end (delta: -188.7 MB). Peak memory consumption was 20.1 MB. Max. memory is 11.5 GB. [2019-10-22 09:02:26,648 INFO L168 Benchmark]: Boogie Procedure Inliner took 30.01 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: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 11.5 GB. [2019-10-22 09:02:26,648 INFO L168 Benchmark]: Boogie Preprocessor took 13.49 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: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 11.5 GB. [2019-10-22 09:02:26,649 INFO L168 Benchmark]: RCFGBuilder took 173.33 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: 19.8 MB). Peak memory consumption was 19.8 MB. Max. memory is 11.5 GB. [2019-10-22 09:02:26,650 INFO L168 Benchmark]: BuchiAutomizer took 300.38 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: 18.8 MB). Peak memory consumption was 18.8 MB. Max. memory is 11.5 GB. [2019-10-22 09:02:26,650 INFO L168 Benchmark]: Witness Printer took 44.14 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: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 11.5 GB. [2019-10-22 09:02:26,655 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 1.0 GB. Free memory is still 960.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 214.01 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 131.6 MB). Free memory was 940.4 MB in the beginning and 1.1 GB in the end (delta: -188.7 MB). Peak memory consumption was 20.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 30.01 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: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 13.49 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: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 11.5 GB. * RCFGBuilder took 173.33 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: 19.8 MB). Peak memory consumption was 19.8 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 300.38 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: 18.8 MB). Peak memory consumption was 18.8 MB. Max. memory is 11.5 GB. * Witness Printer took 44.14 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: 1.3 MB). Peak memory consumption was 1.3 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: 14]: 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@1bd8b3e1=0, \result=0, y=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 14]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L13] int y = __VERIFIER_nondet_int(); Loop: [L14] COND TRUE y >= 0 && y <= 10 [L15] y = (2*y + 1) / 2 End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...