./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-crafted/Binary_Search-2.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 678e0110 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_4fff3e0b-f678-4f7b-b878-908e03f96cd6/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_4fff3e0b-f678-4f7b-b878-908e03f96cd6/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_4fff3e0b-f678-4f7b-b878-908e03f96cd6/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_4fff3e0b-f678-4f7b-b878-908e03f96cd6/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-crafted/Binary_Search-2.c -s /tmp/vcloud-vcloud-master/worker/run_dir_4fff3e0b-f678-4f7b-b878-908e03f96cd6/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_4fff3e0b-f678-4f7b-b878-908e03f96cd6/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 c82b80ee1d840c8880cc584253dffda998627af8 .................................................................................................................................................................................................................................................................... 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 0.1.24-678e011 [2019-11-20 00:39:03,206 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-20 00:39:03,208 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-20 00:39:03,225 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-20 00:39:03,226 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-20 00:39:03,227 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-20 00:39:03,230 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-20 00:39:03,239 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-20 00:39:03,245 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-20 00:39:03,249 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-20 00:39:03,251 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-20 00:39:03,252 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-20 00:39:03,253 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-20 00:39:03,255 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-20 00:39:03,257 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-20 00:39:03,258 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-20 00:39:03,259 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-20 00:39:03,260 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-20 00:39:03,264 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-20 00:39:03,268 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-20 00:39:03,272 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-20 00:39:03,274 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-20 00:39:03,278 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-20 00:39:03,279 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-20 00:39:03,282 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-20 00:39:03,282 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-20 00:39:03,283 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-20 00:39:03,284 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-20 00:39:03,285 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-20 00:39:03,286 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-20 00:39:03,286 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-20 00:39:03,287 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-20 00:39:03,288 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-20 00:39:03,289 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-20 00:39:03,290 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-20 00:39:03,290 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-20 00:39:03,291 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-20 00:39:03,291 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-20 00:39:03,292 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-20 00:39:03,292 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-20 00:39:03,294 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-20 00:39:03,295 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_4fff3e0b-f678-4f7b-b878-908e03f96cd6/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf [2019-11-20 00:39:03,323 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-20 00:39:03,324 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-20 00:39:03,325 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-20 00:39:03,325 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-20 00:39:03,325 INFO L138 SettingsManager]: * Use SBE=true [2019-11-20 00:39:03,325 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-11-20 00:39:03,325 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-11-20 00:39:03,326 INFO L138 SettingsManager]: * Use old map elimination=false [2019-11-20 00:39:03,326 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-11-20 00:39:03,326 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-11-20 00:39:03,326 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-11-20 00:39:03,326 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-20 00:39:03,327 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-20 00:39:03,327 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-20 00:39:03,327 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-20 00:39:03,327 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-11-20 00:39:03,327 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-11-20 00:39:03,327 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-11-20 00:39:03,328 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-20 00:39:03,328 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-11-20 00:39:03,328 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-20 00:39:03,328 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-11-20 00:39:03,328 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-20 00:39:03,329 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-20 00:39:03,329 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-11-20 00:39:03,329 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-20 00:39:03,329 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-20 00:39:03,329 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-11-20 00:39:03,330 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-11-20 00:39:03,330 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_4fff3e0b-f678-4f7b-b878-908e03f96cd6/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 -> c82b80ee1d840c8880cc584253dffda998627af8 [2019-11-20 00:39:03,491 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-20 00:39:03,503 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-20 00:39:03,506 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-20 00:39:03,508 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-20 00:39:03,508 INFO L275 PluginConnector]: CDTParser initialized [2019-11-20 00:39:03,509 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_4fff3e0b-f678-4f7b-b878-908e03f96cd6/bin/uautomizer/../../sv-benchmarks/c/termination-crafted/Binary_Search-2.c [2019-11-20 00:39:03,567 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_4fff3e0b-f678-4f7b-b878-908e03f96cd6/bin/uautomizer/data/26427f235/b743c32aae7a4383af8946dcdcfd706c/FLAG7a28e7132 [2019-11-20 00:39:03,939 INFO L306 CDTParser]: Found 1 translation units. [2019-11-20 00:39:03,940 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_4fff3e0b-f678-4f7b-b878-908e03f96cd6/sv-benchmarks/c/termination-crafted/Binary_Search-2.c [2019-11-20 00:39:03,947 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_4fff3e0b-f678-4f7b-b878-908e03f96cd6/bin/uautomizer/data/26427f235/b743c32aae7a4383af8946dcdcfd706c/FLAG7a28e7132 [2019-11-20 00:39:04,310 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_4fff3e0b-f678-4f7b-b878-908e03f96cd6/bin/uautomizer/data/26427f235/b743c32aae7a4383af8946dcdcfd706c [2019-11-20 00:39:04,313 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-20 00:39:04,314 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-20 00:39:04,318 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-20 00:39:04,319 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-20 00:39:04,322 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-20 00:39:04,323 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 12:39:04" (1/1) ... [2019-11-20 00:39:04,326 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6471f239 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:39:04, skipping insertion in model container [2019-11-20 00:39:04,326 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 12:39:04" (1/1) ... [2019-11-20 00:39:04,334 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-20 00:39:04,353 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-20 00:39:04,549 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 00:39:04,553 INFO L188 MainTranslator]: Completed pre-run [2019-11-20 00:39:04,578 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 00:39:04,682 INFO L192 MainTranslator]: Completed translation [2019-11-20 00:39:04,682 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:39:04 WrapperNode [2019-11-20 00:39:04,682 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-20 00:39:04,683 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-20 00:39:04,683 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-20 00:39:04,683 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-20 00:39:04,693 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:39:04" (1/1) ... [2019-11-20 00:39:04,701 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:39:04" (1/1) ... [2019-11-20 00:39:04,717 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-20 00:39:04,717 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-20 00:39:04,718 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-20 00:39:04,718 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-20 00:39:04,725 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:39:04" (1/1) ... [2019-11-20 00:39:04,725 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:39:04" (1/1) ... [2019-11-20 00:39:04,726 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:39:04" (1/1) ... [2019-11-20 00:39:04,726 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:39:04" (1/1) ... [2019-11-20 00:39:04,728 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:39:04" (1/1) ... [2019-11-20 00:39:04,730 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:39:04" (1/1) ... [2019-11-20 00:39:04,734 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:39:04" (1/1) ... [2019-11-20 00:39:04,735 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-20 00:39:04,735 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-20 00:39:04,735 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-20 00:39:04,735 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-20 00:39:04,736 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:39:04" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_4fff3e0b-f678-4f7b-b878-908e03f96cd6/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 [2019-11-20 00:39:04,790 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2019-11-20 00:39:04,790 INFO L138 BoogieDeclarations]: Found implementation of procedure bsearch [2019-11-20 00:39:04,791 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-20 00:39:04,791 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-20 00:39:04,955 INFO L280 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-20 00:39:04,956 INFO L285 CfgBuilder]: Removed 4 assume(true) statements. [2019-11-20 00:39:04,957 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 12:39:04 BoogieIcfgContainer [2019-11-20 00:39:04,957 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-20 00:39:04,958 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-11-20 00:39:04,958 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-11-20 00:39:04,961 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-11-20 00:39:04,962 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-20 00:39:04,962 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 20.11 12:39:04" (1/3) ... [2019-11-20 00:39:04,963 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4c0f7430 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 20.11 12:39:04, skipping insertion in model container [2019-11-20 00:39:04,964 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-20 00:39:04,964 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:39:04" (2/3) ... [2019-11-20 00:39:04,964 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4c0f7430 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 20.11 12:39:04, skipping insertion in model container [2019-11-20 00:39:04,964 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-20 00:39:04,965 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 12:39:04" (3/3) ... [2019-11-20 00:39:04,970 INFO L371 chiAutomizerObserver]: Analyzing ICFG Binary_Search-2.c [2019-11-20 00:39:05,054 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-11-20 00:39:05,054 INFO L357 BuchiCegarLoop]: Hoare is false [2019-11-20 00:39:05,054 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-11-20 00:39:05,055 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-20 00:39:05,055 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-20 00:39:05,055 INFO L361 BuchiCegarLoop]: Difference is false [2019-11-20 00:39:05,055 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-20 00:39:05,055 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-11-20 00:39:05,069 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 17 states. [2019-11-20 00:39:05,093 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2019-11-20 00:39:05,093 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-20 00:39:05,093 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-20 00:39:05,101 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2019-11-20 00:39:05,101 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2019-11-20 00:39:05,101 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-11-20 00:39:05,102 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 17 states. [2019-11-20 00:39:05,104 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2019-11-20 00:39:05,104 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-20 00:39:05,104 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-20 00:39:05,105 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2019-11-20 00:39:05,105 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2019-11-20 00:39:05,113 INFO L794 eck$LassoCheckResult]: Stem: 9#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_#t~nondet3, main_#t~nondet4, main_#t~ret5, main_~x~0, main_~y~0;main_~x~0 := main_#t~nondet3;havoc main_#t~nondet3;main_~y~0 := main_#t~nondet4;havoc main_#t~nondet4; 10#L22true assume !!(-1073741823 <= main_~x~0 && main_~x~0 <= 1073741823); 11#L23true assume !!(-1073741823 <= main_~y~0 && main_~y~0 <= 1073741823); 16#L24true call main_#t~ret5 := bsearch(main_~x~0, main_~y~0);< 14#bsearchENTRYtrue [2019-11-20 00:39:05,113 INFO L796 eck$LassoCheckResult]: Loop: 14#bsearchENTRYtrue ~i := #in~i;~j := #in~j; 6#L10true assume !(~i >= ~j);~mid~0 := (if ~i + ~j < 0 && 0 != (~i + ~j) % 2 then 1 + (~i + ~j) / 2 else (~i + ~j) / 2); 3#L12true assume 0 != #t~nondet0;havoc #t~nondet0; 18#L13true call #t~ret1 := bsearch(~i, ~mid~0);< 14#bsearchENTRYtrue [2019-11-20 00:39:05,119 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 00:39:05,120 INFO L82 PathProgramCache]: Analyzing trace with hash 1390416, now seen corresponding path program 1 times [2019-11-20 00:39:05,129 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 00:39:05,129 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1967541108] [2019-11-20 00:39:05,129 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 00:39:05,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 00:39:05,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 00:39:05,237 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 00:39:05,238 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 00:39:05,238 INFO L82 PathProgramCache]: Analyzing trace with hash 927613, now seen corresponding path program 1 times [2019-11-20 00:39:05,239 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 00:39:05,239 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [573808537] [2019-11-20 00:39:05,239 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 00:39:05,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 00:39:05,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 00:39:05,270 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 00:39:05,271 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 00:39:05,271 INFO L82 PathProgramCache]: Analyzing trace with hash -116842676, now seen corresponding path program 1 times [2019-11-20 00:39:05,271 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 00:39:05,272 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [846801535] [2019-11-20 00:39:05,272 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 00:39:05,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 00:39:05,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 00:39:05,306 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 00:39:05,684 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 20.11 12:39:05 BoogieIcfgContainer [2019-11-20 00:39:05,684 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-11-20 00:39:05,685 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-20 00:39:05,685 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-20 00:39:05,685 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-20 00:39:05,686 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 12:39:04" (3/4) ... [2019-11-20 00:39:05,689 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2019-11-20 00:39:05,739 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_4fff3e0b-f678-4f7b-b878-908e03f96cd6/bin/uautomizer/witness.graphml [2019-11-20 00:39:05,740 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-20 00:39:05,744 INFO L168 Benchmark]: Toolchain (without parser) took 1428.16 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 164.6 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -149.9 MB). Peak memory consumption was 14.7 MB. Max. memory is 11.5 GB. [2019-11-20 00:39:05,745 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 1.0 GB. Free memory is still 962.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 00:39:05,751 INFO L168 Benchmark]: CACSL2BoogieTranslator took 364.13 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 164.6 MB). Free memory was 944.7 MB in the beginning and 1.2 GB in the end (delta: -214.9 MB). Peak memory consumption was 23.4 MB. Max. memory is 11.5 GB. [2019-11-20 00:39:05,751 INFO L168 Benchmark]: Boogie Procedure Inliner took 34.61 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. [2019-11-20 00:39:05,753 INFO L168 Benchmark]: Boogie Preprocessor took 17.64 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 3.3 MB). Peak memory consumption was 3.3 MB. Max. memory is 11.5 GB. [2019-11-20 00:39:05,753 INFO L168 Benchmark]: RCFGBuilder took 221.99 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: 14.2 MB). Peak memory consumption was 14.2 MB. Max. memory is 11.5 GB. [2019-11-20 00:39:05,754 INFO L168 Benchmark]: BuchiAutomizer took 726.62 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: 47.5 MB). Peak memory consumption was 47.5 MB. Max. memory is 11.5 GB. [2019-11-20 00:39:05,755 INFO L168 Benchmark]: Witness Printer took 55.16 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. [2019-11-20 00:39:05,763 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 962.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 364.13 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 164.6 MB). Free memory was 944.7 MB in the beginning and 1.2 GB in the end (delta: -214.9 MB). Peak memory consumption was 23.4 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 34.61 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 17.64 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 3.3 MB). Peak memory consumption was 3.3 MB. Max. memory is 11.5 GB. * RCFGBuilder took 221.99 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: 14.2 MB). Peak memory consumption was 14.2 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 726.62 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: 47.5 MB). Peak memory consumption was 47.5 MB. Max. memory is 11.5 GB. * Witness Printer took 55.16 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. * 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 0.6s and 1 iterations. TraceHistogramMax:1. Analysis of lassos took 0.5s. 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: 8]: 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 {\old(j)=0, \result=0, \result=0, \old(i)=-1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@57b10dac=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7ad77d22=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@262a1012=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7073b81f=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@346cffd3=0, NULL=0, i=0, mid=0, j=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@16ddcc8e=3, x=0, y=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 8]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L19] int x = __VERIFIER_nondet_int(); [L20] int y = __VERIFIER_nondet_int(); [L22] COND FALSE !(!(-1073741823<=x && x<=1073741823)) [L23] COND FALSE !(!(-1073741823<=y && y<=1073741823)) [L24] CALL bsearch(x, y) Loop: [L10] COND FALSE !(i>=j) [L11] int mid = (i+j)/2; [L12] COND TRUE __VERIFIER_nondet_int() [L13] CALL bsearch(i,mid) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...