./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 5fbdf5bf Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i ../sv-benchmarks/c/termination-crafted/Binary_Search-2.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --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 Using bit-precise analysis No suitable file found in config dir /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config using search string *Termination*64bit*_Bitvector*.epf No suitable settings file found using Termination*64bit*_Bitvector ERROR: UNSUPPORTED PROPERTY Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: ClassCastException: class de.uni_freiburg.informatik.ultimate.util.statistics.StatisticsAggregator cannot be cast to class de.uni_freiburg.informatik.ultimate.util.statistics.StatisticsData (de.uni_freiburg.informatik.ultimate.util.statistics.StatisticsAggregator and de.uni_freiburg.informatik.ultimate.util.statistics.StatisticsData are in unnamed module of loader org.eclipse.osgi.internal.loader.EquinoxClassLoader @560348e6) --- Real Ultimate output --- This is Ultimate 0.2.1-wip.dd.seqcomp-5fbdf5b [2021-08-31 01:15:00,095 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-31 01:15:00,098 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-31 01:15:00,129 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-08-31 01:15:00,129 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-08-31 01:15:00,132 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-08-31 01:15:00,133 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-08-31 01:15:00,137 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-08-31 01:15:00,139 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-08-31 01:15:00,142 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-08-31 01:15:00,143 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-08-31 01:15:00,146 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-08-31 01:15:00,146 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-31 01:15:00,148 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-31 01:15:00,150 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-31 01:15:00,153 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-31 01:15:00,154 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-31 01:15:00,154 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-31 01:15:00,156 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-31 01:15:00,160 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-31 01:15:00,161 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-31 01:15:00,162 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-31 01:15:00,163 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-31 01:15:00,164 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-31 01:15:00,169 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-08-31 01:15:00,169 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-08-31 01:15:00,169 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-08-31 01:15:00,171 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-08-31 01:15:00,171 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-08-31 01:15:00,172 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-08-31 01:15:00,172 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-08-31 01:15:00,172 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-08-31 01:15:00,174 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-08-31 01:15:00,174 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-08-31 01:15:00,175 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-08-31 01:15:00,175 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-08-31 01:15:00,176 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-08-31 01:15:00,176 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-08-31 01:15:00,176 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-31 01:15:00,177 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-31 01:15:00,178 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-31 01:15:00,181 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2021-08-31 01:15:00,210 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-31 01:15:00,210 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-31 01:15:00,211 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-31 01:15:00,211 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-31 01:15:00,213 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-31 01:15:00,213 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-31 01:15:00,213 INFO L138 SettingsManager]: * Use SBE=true [2021-08-31 01:15:00,213 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-08-31 01:15:00,213 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-08-31 01:15:00,214 INFO L138 SettingsManager]: * Use old map elimination=false [2021-08-31 01:15:00,214 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-08-31 01:15:00,214 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-08-31 01:15:00,214 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-08-31 01:15:00,215 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-31 01:15:00,215 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-08-31 01:15:00,215 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-31 01:15:00,215 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-31 01:15:00,215 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-08-31 01:15:00,215 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-08-31 01:15:00,220 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-08-31 01:15:00,220 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-31 01:15:00,220 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-08-31 01:15:00,221 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-31 01:15:00,221 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-08-31 01:15:00,221 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-31 01:15:00,221 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-31 01:15:00,221 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-31 01:15:00,221 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-08-31 01:15:00,222 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-08-31 01:15:00,223 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-08-31 01:15:00,223 INFO L138 SettingsManager]: * TransformationType=MODULO_NEIGHBOR WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c82b80ee1d840c8880cc584253dffda998627af8 [2021-08-31 01:15:00,520 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-31 01:15:00,543 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-31 01:15:00,546 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-31 01:15:00,547 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-31 01:15:00,547 INFO L275 PluginConnector]: CDTParser initialized [2021-08-31 01:15:00,549 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-crafted/Binary_Search-2.c [2021-08-31 01:15:00,600 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c347956da/6e41602cfdad474883bb1429beaab9c8/FLAGccf88e92a [2021-08-31 01:15:00,989 INFO L306 CDTParser]: Found 1 translation units. [2021-08-31 01:15:00,989 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-crafted/Binary_Search-2.c [2021-08-31 01:15:00,993 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c347956da/6e41602cfdad474883bb1429beaab9c8/FLAGccf88e92a [2021-08-31 01:15:01,006 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c347956da/6e41602cfdad474883bb1429beaab9c8 [2021-08-31 01:15:01,008 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-31 01:15:01,010 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-08-31 01:15:01,013 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-31 01:15:01,013 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-31 01:15:01,016 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-31 01:15:01,016 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.08 01:15:01" (1/1) ... [2021-08-31 01:15:01,017 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@197fd2ae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 01:15:01, skipping insertion in model container [2021-08-31 01:15:01,017 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.08 01:15:01" (1/1) ... [2021-08-31 01:15:01,022 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-31 01:15:01,031 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-31 01:15:01,148 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-31 01:15:01,152 INFO L203 MainTranslator]: Completed pre-run [2021-08-31 01:15:01,165 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-31 01:15:01,178 INFO L208 MainTranslator]: Completed translation [2021-08-31 01:15:01,178 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 01:15:01 WrapperNode [2021-08-31 01:15:01,178 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-31 01:15:01,180 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-08-31 01:15:01,180 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-08-31 01:15:01,180 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-08-31 01:15:01,187 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 01:15:01" (1/1) ... [2021-08-31 01:15:01,191 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 01:15:01" (1/1) ... [2021-08-31 01:15:01,227 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-08-31 01:15:01,230 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-31 01:15:01,237 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-31 01:15:01,237 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-31 01:15:01,242 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 01:15:01" (1/1) ... [2021-08-31 01:15:01,243 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 01:15:01" (1/1) ... [2021-08-31 01:15:01,244 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 01:15:01" (1/1) ... [2021-08-31 01:15:01,244 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 01:15:01" (1/1) ... [2021-08-31 01:15:01,261 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 01:15:01" (1/1) ... [2021-08-31 01:15:01,263 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 01:15:01" (1/1) ... [2021-08-31 01:15:01,263 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 01:15:01" (1/1) ... [2021-08-31 01:15:01,264 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-31 01:15:01,264 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-31 01:15:01,265 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-31 01:15:01,265 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-31 01:15:01,265 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 01:15:01" (1/1) ... [2021-08-31 01:15:01,281 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 01:15:01,288 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 01:15:01,326 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-31 01:15:01,385 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-08-31 01:15:01,416 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2021-08-31 01:15:01,416 INFO L138 BoogieDeclarations]: Found implementation of procedure bsearch [2021-08-31 01:15:01,416 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-31 01:15:01,416 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-31 01:15:01,517 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-31 01:15:01,518 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2021-08-31 01:15:01,519 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.08 01:15:01 BoogieIcfgContainer [2021-08-31 01:15:01,519 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-31 01:15:01,520 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-08-31 01:15:01,520 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-08-31 01:15:01,523 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-08-31 01:15:01,523 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-08-31 01:15:01,524 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 31.08 01:15:01" (1/3) ... [2021-08-31 01:15:01,525 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@593ab10f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 31.08 01:15:01, skipping insertion in model container [2021-08-31 01:15:01,525 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-08-31 01:15:01,525 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 01:15:01" (2/3) ... [2021-08-31 01:15:01,525 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@593ab10f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 31.08 01:15:01, skipping insertion in model container [2021-08-31 01:15:01,525 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-08-31 01:15:01,525 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.08 01:15:01" (3/3) ... [2021-08-31 01:15:01,527 INFO L389 chiAutomizerObserver]: Analyzing ICFG Binary_Search-2.c [2021-08-31 01:15:01,568 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-08-31 01:15:01,569 INFO L360 BuchiCegarLoop]: Hoare is false [2021-08-31 01:15:01,569 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-08-31 01:15:01,569 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-08-31 01:15:01,569 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-08-31 01:15:01,569 INFO L364 BuchiCegarLoop]: Difference is false [2021-08-31 01:15:01,569 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-08-31 01:15:01,570 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-08-31 01:15:01,580 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 17 states, 12 states have (on average 1.3333333333333333) internal successors, (16), 12 states have internal predecessors, (16), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-08-31 01:15:01,595 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2021-08-31 01:15:01,596 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-31 01:15:01,596 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-31 01:15:01,600 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2021-08-31 01:15:01,600 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2021-08-31 01:15:01,601 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-08-31 01:15:01,601 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 17 states, 12 states have (on average 1.3333333333333333) internal successors, (16), 12 states have internal predecessors, (16), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-08-31 01:15:01,602 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2021-08-31 01:15:01,602 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-31 01:15:01,602 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-31 01:15:01,603 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2021-08-31 01:15:01,603 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2021-08-31 01:15:01,609 INFO L791 eck$LassoCheckResult]: Stem: 4#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); 15#L23true assume !!(-1073741823 <= main_~y~0 && main_~y~0 <= 1073741823); 18#L24true call main_#t~ret5 := bsearch(main_~x~0, main_~y~0);< 6#bsearchENTRYtrue [2021-08-31 01:15:01,609 INFO L793 eck$LassoCheckResult]: Loop: 6#bsearchENTRYtrue ~i := #in~i;~j := #in~j; 16#L10true assume !(~i >= ~j);~mid~0 := (if ~i + ~j < 0 && 0 != (~i + ~j) % 2 then 1 + (~i + ~j) / 2 else (~i + ~j) / 2); 17#L12true assume !(0 != #t~nondet0);havoc #t~nondet0; 5#L14true call #t~ret2 := bsearch(1 + ~mid~0, ~j);< 6#bsearchENTRYtrue [2021-08-31 01:15:01,614 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-31 01:15:01,614 INFO L82 PathProgramCache]: Analyzing trace with hash 1390416, now seen corresponding path program 1 times [2021-08-31 01:15:01,620 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-31 01:15:01,621 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1107494492] [2021-08-31 01:15:01,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-31 01:15:01,622 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-31 01:15:01,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 01:15:01,678 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-31 01:15:01,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 01:15:01,701 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-31 01:15:01,703 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-31 01:15:01,704 INFO L82 PathProgramCache]: Analyzing trace with hash 927708, now seen corresponding path program 1 times [2021-08-31 01:15:01,704 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-31 01:15:01,705 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1236336310] [2021-08-31 01:15:01,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-31 01:15:01,705 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-31 01:15:01,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 01:15:01,732 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-31 01:15:01,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 01:15:01,755 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-31 01:15:01,757 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-31 01:15:01,757 INFO L82 PathProgramCache]: Analyzing trace with hash -116842581, now seen corresponding path program 1 times [2021-08-31 01:15:01,757 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-31 01:15:01,757 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2003237661] [2021-08-31 01:15:01,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-31 01:15:01,758 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-31 01:15:01,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 01:15:01,779 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-31 01:15:01,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 01:15:01,813 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-31 01:15:02,146 INFO L210 LassoAnalysis]: Preferences: [2021-08-31 01:15:02,147 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-08-31 01:15:02,147 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-08-31 01:15:02,147 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-08-31 01:15:02,147 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-08-31 01:15:02,147 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 01:15:02,148 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-08-31 01:15:02,148 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-08-31 01:15:02,148 INFO L133 ssoRankerPreferences]: Filename of dumped script: Binary_Search-2.c_Iteration1_Loop [2021-08-31 01:15:02,148 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-08-31 01:15:02,148 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-08-31 01:15:02,159 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-31 01:15:02,214 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-31 01:15:02,217 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-31 01:15:02,219 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-31 01:15:02,221 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-31 01:15:02,224 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-31 01:15:02,226 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-31 01:15:02,228 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-31 01:15:02,510 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-08-31 01:15:02,511 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-08-31 01:15:02,512 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 01:15:02,513 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 01:15:02,553 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-31 01:15:02,555 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-08-31 01:15:02,555 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-08-31 01:15:02,566 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2021-08-31 01:15:02,756 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Ended with exit code 0 [2021-08-31 01:15:02,757 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 01:15:02,757 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 01:15:02,758 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-31 01:15:02,759 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2021-08-31 01:15:02,760 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-08-31 01:15:02,760 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-08-31 01:15:06,346 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-08-31 01:15:06,354 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2021-08-31 01:15:06,354 INFO L210 LassoAnalysis]: Preferences: [2021-08-31 01:15:06,354 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-08-31 01:15:06,354 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-08-31 01:15:06,354 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-08-31 01:15:06,354 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-08-31 01:15:06,354 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 01:15:06,355 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-08-31 01:15:06,355 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-08-31 01:15:06,355 INFO L133 ssoRankerPreferences]: Filename of dumped script: Binary_Search-2.c_Iteration1_Loop [2021-08-31 01:15:06,355 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-08-31 01:15:06,355 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-08-31 01:15:06,356 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-31 01:15:06,420 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-31 01:15:06,423 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-31 01:15:06,426 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-31 01:15:06,428 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-31 01:15:06,430 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-31 01:15:06,433 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-31 01:15:06,435 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-31 01:15:06,644 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-08-31 01:15:06,647 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-08-31 01:15:06,648 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 01:15:06,648 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 01:15:06,652 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-31 01:15:06,653 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2021-08-31 01:15:06,667 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-31 01:15:06,675 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-31 01:15:06,675 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-31 01:15:06,675 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-31 01:15:06,675 INFO L204 nArgumentSynthesizer]: 3 loop disjuncts [2021-08-31 01:15:06,675 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-31 01:15:06,685 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-31 01:15:06,685 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-31 01:15:06,695 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-08-31 01:15:06,722 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2021-08-31 01:15:06,722 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2021-08-31 01:15:06,723 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 01:15:06,723 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 01:15:06,741 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-31 01:15:06,752 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-08-31 01:15:06,752 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-08-31 01:15:06,753 INFO L513 LassoAnalysis]: Proved termination. [2021-08-31 01:15:06,753 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(bsearch_#in~j, bsearch_#in~i) = 1*bsearch_#in~j - 1*bsearch_#in~i Supporting invariants [] [2021-08-31 01:15:06,764 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2021-08-31 01:15:06,770 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2021-08-31 01:15:06,772 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-08-31 01:15:06,790 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-31 01:15:06,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-31 01:15:06,820 INFO L263 TraceCheckSpWp]: Trace formula consists of 44 conjuncts, 4 conjunts are in the unsatisfiable core [2021-08-31 01:15:06,821 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-31 01:15:06,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-31 01:15:06,861 INFO L263 TraceCheckSpWp]: Trace formula consists of 45 conjuncts, 10 conjunts are in the unsatisfiable core [2021-08-31 01:15:06,862 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-31 01:15:07,022 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2021-08-31 01:15:07,139 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-31 01:15:07,164 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2021-08-31 01:15:07,165 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 17 states, 12 states have (on average 1.3333333333333333) internal successors, (16), 12 states have internal predecessors, (16), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 3 states have internal predecessors, (6), 2 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-31 01:15:07,261 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 17 states, 12 states have (on average 1.3333333333333333) internal successors, (16), 12 states have internal predecessors, (16), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3). Second operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 3 states have internal predecessors, (6), 2 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 46 states and 59 transitions. Complement of second has 12 states. [2021-08-31 01:15:07,262 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2021-08-31 01:15:07,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 3 states have internal predecessors, (6), 2 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-31 01:15:07,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 15 transitions. [2021-08-31 01:15:07,270 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 15 transitions. Stem has 4 letters. Loop has 4 letters. [2021-08-31 01:15:07,271 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-31 01:15:07,271 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 15 transitions. Stem has 8 letters. Loop has 4 letters. [2021-08-31 01:15:07,272 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-31 01:15:07,272 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 15 transitions. Stem has 4 letters. Loop has 8 letters. [2021-08-31 01:15:07,272 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-31 01:15:07,272 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 46 states and 59 transitions. [2021-08-31 01:15:07,279 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2021-08-31 01:15:07,282 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 46 states to 23 states and 26 transitions. [2021-08-31 01:15:07,284 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 14 [2021-08-31 01:15:07,284 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 16 [2021-08-31 01:15:07,285 INFO L73 IsDeterministic]: Start isDeterministic. Operand 23 states and 26 transitions. [2021-08-31 01:15:07,285 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-08-31 01:15:07,285 INFO L681 BuchiCegarLoop]: Abstraction has 23 states and 26 transitions. [2021-08-31 01:15:07,295 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states and 26 transitions. [2021-08-31 01:15:07,300 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 16. [2021-08-31 01:15:07,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 12 states have (on average 1.25) internal successors, (15), 12 states have internal predecessors, (15), 4 states have call successors, (4), 3 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-31 01:15:07,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 19 transitions. [2021-08-31 01:15:07,301 INFO L704 BuchiCegarLoop]: Abstraction has 16 states and 19 transitions. [2021-08-31 01:15:07,301 INFO L587 BuchiCegarLoop]: Abstraction has 16 states and 19 transitions. [2021-08-31 01:15:07,301 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-08-31 01:15:07,301 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 16 states and 19 transitions. [2021-08-31 01:15:07,302 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2021-08-31 01:15:07,302 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-31 01:15:07,302 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-31 01:15:07,302 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-08-31 01:15:07,302 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2021-08-31 01:15:07,303 INFO L791 eck$LassoCheckResult]: Stem: 124#ULTIMATE.startENTRY 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; 122#L22 assume !!(-1073741823 <= main_~x~0 && main_~x~0 <= 1073741823); 123#L23 assume !!(-1073741823 <= main_~y~0 && main_~y~0 <= 1073741823); 130#L24 call main_#t~ret5 := bsearch(main_~x~0, main_~y~0);< 131#bsearchENTRY ~i := #in~i;~j := #in~j; 133#L10 assume !(~i >= ~j);~mid~0 := (if ~i + ~j < 0 && 0 != (~i + ~j) % 2 then 1 + (~i + ~j) / 2 else (~i + ~j) / 2); 134#L12 assume 0 != #t~nondet0;havoc #t~nondet0; 126#L13 [2021-08-31 01:15:07,303 INFO L793 eck$LassoCheckResult]: Loop: 126#L13 call #t~ret1 := bsearch(~i, ~mid~0);< 127#bsearchENTRY ~i := #in~i;~j := #in~j; 137#L10 assume !(~i >= ~j);~mid~0 := (if ~i + ~j < 0 && 0 != (~i + ~j) % 2 then 1 + (~i + ~j) / 2 else (~i + ~j) / 2); 136#L12 assume 0 != #t~nondet0;havoc #t~nondet0; 126#L13 [2021-08-31 01:15:07,303 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-31 01:15:07,303 INFO L82 PathProgramCache]: Analyzing trace with hash -1527789773, now seen corresponding path program 1 times [2021-08-31 01:15:07,303 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-31 01:15:07,304 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1724171510] [2021-08-31 01:15:07,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-31 01:15:07,304 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-31 01:15:07,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 01:15:07,309 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-31 01:15:07,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 01:15:07,316 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-31 01:15:07,317 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-31 01:15:07,317 INFO L82 PathProgramCache]: Analyzing trace with hash 1847173, now seen corresponding path program 1 times [2021-08-31 01:15:07,318 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-31 01:15:07,318 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1373288400] [2021-08-31 01:15:07,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-31 01:15:07,319 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-31 01:15:07,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 01:15:07,323 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-31 01:15:07,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 01:15:07,327 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-31 01:15:07,327 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-31 01:15:07,328 INFO L82 PathProgramCache]: Analyzing trace with hash -1936650825, now seen corresponding path program 1 times [2021-08-31 01:15:07,328 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-31 01:15:07,328 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1852300598] [2021-08-31 01:15:07,328 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-31 01:15:07,328 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-31 01:15:07,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 01:15:07,338 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-31 01:15:07,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 01:15:07,351 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-31 01:15:07,778 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer has thrown an exception: java.lang.ClassCastException: class de.uni_freiburg.informatik.ultimate.util.statistics.StatisticsAggregator cannot be cast to class de.uni_freiburg.informatik.ultimate.util.statistics.StatisticsData (de.uni_freiburg.informatik.ultimate.util.statistics.StatisticsAggregator and de.uni_freiburg.informatik.ultimate.util.statistics.StatisticsData are in unnamed module of loader org.eclipse.osgi.internal.loader.EquinoxClassLoader @560348e6) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiCegarLoopBenchmark.prettyprintBenchmarkData(BuchiCegarLoopBenchmark.java:178) at de.uni_freiburg.informatik.ultimate.util.statistics.StatisticsData.toString(StatisticsData.java:100) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerTimingBenchmark.toString(BuchiAutomizerTimingBenchmark.java:44) at de.uni_freiburg.informatik.ultimate.core.lib.results.StatisticsResult.getLongDescription(StatisticsResult.java:58) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ResultService.reportResult(ResultService.java:86) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver.reportResult(BuchiAutomizerObserver.java:375) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver.doTerminationAnalysis(BuchiAutomizerObserver.java:161) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver.finish(BuchiAutomizerObserver.java:398) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-08-31 01:15:07,780 INFO L158 Benchmark]: Toolchain (without parser) took 6769.02ms. Allocated memory was 56.6MB in the beginning and 73.4MB in the end (delta: 16.8MB). Free memory was 35.1MB in the beginning and 24.7MB in the end (delta: 10.4MB). Peak memory consumption was 31.1MB. Max. memory is 16.1GB. [2021-08-31 01:15:07,780 INFO L158 Benchmark]: CDTParser took 0.21ms. Allocated memory is still 56.6MB. Free memory is still 38.3MB. There was no memory consumed. Max. memory is 16.1GB. [2021-08-31 01:15:07,781 INFO L158 Benchmark]: CACSL2BoogieTranslator took 165.87ms. Allocated memory is still 56.6MB. Free memory was 34.9MB in the beginning and 26.2MB in the end (delta: 8.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-08-31 01:15:07,781 INFO L158 Benchmark]: Boogie Procedure Inliner took 49.27ms. Allocated memory was 56.6MB in the beginning and 73.4MB in the end (delta: 16.8MB). Free memory was 26.1MB in the beginning and 57.7MB in the end (delta: -31.5MB). Peak memory consumption was 5.2MB. Max. memory is 16.1GB. [2021-08-31 01:15:07,781 INFO L158 Benchmark]: Boogie Preprocessor took 33.89ms. Allocated memory is still 73.4MB. Free memory was 57.7MB in the beginning and 56.7MB in the end (delta: 956.5kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-08-31 01:15:07,782 INFO L158 Benchmark]: RCFGBuilder took 255.02ms. Allocated memory is still 73.4MB. Free memory was 56.7MB in the beginning and 49.0MB in the end (delta: 7.7MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-08-31 01:15:07,782 INFO L158 Benchmark]: BuchiAutomizer took 6258.54ms. Allocated memory is still 73.4MB. Free memory was 49.0MB in the beginning and 24.7MB in the end (delta: 24.3MB). Peak memory consumption was 30.1MB. Max. memory is 16.1GB. [2021-08-31 01:15:07,784 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21ms. Allocated memory is still 56.6MB. Free memory is still 38.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 165.87ms. Allocated memory is still 56.6MB. Free memory was 34.9MB in the beginning and 26.2MB in the end (delta: 8.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 49.27ms. Allocated memory was 56.6MB in the beginning and 73.4MB in the end (delta: 16.8MB). Free memory was 26.1MB in the beginning and 57.7MB in the end (delta: -31.5MB). Peak memory consumption was 5.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 33.89ms. Allocated memory is still 73.4MB. Free memory was 57.7MB in the beginning and 56.7MB in the end (delta: 956.5kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 255.02ms. Allocated memory is still 73.4MB. Free memory was 56.7MB in the beginning and 49.0MB in the end (delta: 7.7MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * BuchiAutomizer took 6258.54ms. Allocated memory is still 73.4MB. Free memory was 49.0MB in the beginning and 24.7MB in the end (delta: 24.3MB). Peak memory consumption was 30.1MB. Max. memory is 16.1GB. * 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 -1 * \old(i) + \old(j) and consists of 4 locations. The remainder module has 16 locations. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer: - ExceptionOrErrorResult: ClassCastException: class de.uni_freiburg.informatik.ultimate.util.statistics.StatisticsAggregator cannot be cast to class de.uni_freiburg.informatik.ultimate.util.statistics.StatisticsData (de.uni_freiburg.informatik.ultimate.util.statistics.StatisticsAggregator and de.uni_freiburg.informatik.ultimate.util.statistics.StatisticsData are in unnamed module of loader org.eclipse.osgi.internal.loader.EquinoxClassLoader @560348e6) de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer: ClassCastException: class de.uni_freiburg.informatik.ultimate.util.statistics.StatisticsAggregator cannot be cast to class de.uni_freiburg.informatik.ultimate.util.statistics.StatisticsData (de.uni_freiburg.informatik.ultimate.util.statistics.StatisticsAggregator and de.uni_freiburg.informatik.ultimate.util.statistics.StatisticsData are in unnamed module of loader org.eclipse.osgi.internal.loader.EquinoxClassLoader @560348e6): de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiCegarLoopBenchmark.prettyprintBenchmarkData(BuchiCegarLoopBenchmark.java:178) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2021-08-31 01:15:07,815 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...