./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 4e77c044 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e423d15-390d-4b64-b488-615d280f219f/bin/uautomizer-WNIpwEf4Nt/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e423d15-390d-4b64-b488-615d280f219f/bin/uautomizer-WNIpwEf4Nt/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e423d15-390d-4b64-b488-615d280f219f/bin/uautomizer-WNIpwEf4Nt/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e423d15-390d-4b64-b488-615d280f219f/bin/uautomizer-WNIpwEf4Nt/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-crafted/Binary_Search-2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e423d15-390d-4b64-b488-615d280f219f/bin/uautomizer-WNIpwEf4Nt/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e423d15-390d-4b64-b488-615d280f219f/bin/uautomizer-WNIpwEf4Nt --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 0.2.1-dev-4e77c04 [2021-10-13 01:08:54,817 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-13 01:08:54,820 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-13 01:08:54,858 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-13 01:08:54,859 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-13 01:08:54,861 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-13 01:08:54,863 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-13 01:08:54,866 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-13 01:08:54,869 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-13 01:08:54,871 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-13 01:08:54,873 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-13 01:08:54,875 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-13 01:08:54,876 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-13 01:08:54,878 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-13 01:08:54,880 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-13 01:08:54,882 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-13 01:08:54,884 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-13 01:08:54,886 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-13 01:08:54,889 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-13 01:08:54,892 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-13 01:08:54,895 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-13 01:08:54,897 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-13 01:08:54,899 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-13 01:08:54,901 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-13 01:08:54,906 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-13 01:08:54,906 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-13 01:08:54,907 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-13 01:08:54,908 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-13 01:08:54,909 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-13 01:08:54,911 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-13 01:08:54,912 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-13 01:08:54,913 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-13 01:08:54,915 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-13 01:08:54,916 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-13 01:08:54,918 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-13 01:08:54,919 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-13 01:08:54,920 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-13 01:08:54,920 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-13 01:08:54,921 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-13 01:08:54,922 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-13 01:08:54,924 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-13 01:08:54,925 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e423d15-390d-4b64-b488-615d280f219f/bin/uautomizer-WNIpwEf4Nt/config/svcomp-Termination-64bit-Automizer_Default.epf [2021-10-13 01:08:54,959 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-13 01:08:54,960 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-13 01:08:54,960 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-13 01:08:54,960 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-13 01:08:54,961 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-13 01:08:54,961 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-13 01:08:54,962 INFO L138 SettingsManager]: * Use SBE=true [2021-10-13 01:08:54,962 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-10-13 01:08:54,962 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-10-13 01:08:54,963 INFO L138 SettingsManager]: * Use old map elimination=false [2021-10-13 01:08:54,963 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-10-13 01:08:54,963 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-10-13 01:08:54,964 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-10-13 01:08:54,964 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-13 01:08:54,965 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-13 01:08:54,965 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-13 01:08:54,965 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-13 01:08:54,966 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-10-13 01:08:54,966 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-10-13 01:08:54,966 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-10-13 01:08:54,967 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-13 01:08:54,967 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-10-13 01:08:54,967 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-13 01:08:54,968 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-10-13 01:08:54,968 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-13 01:08:54,968 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-13 01:08:54,969 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-13 01:08:54,969 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-13 01:08:54,970 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-13 01:08:54,971 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-10-13 01:08:54,971 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:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e423d15-390d-4b64-b488-615d280f219f/bin/uautomizer-WNIpwEf4Nt/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e423d15-390d-4b64-b488-615d280f219f/bin/uautomizer-WNIpwEf4Nt Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c82b80ee1d840c8880cc584253dffda998627af8 [2021-10-13 01:08:55,285 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-13 01:08:55,331 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-13 01:08:55,334 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-13 01:08:55,336 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-13 01:08:55,338 INFO L275 PluginConnector]: CDTParser initialized [2021-10-13 01:08:55,340 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e423d15-390d-4b64-b488-615d280f219f/bin/uautomizer-WNIpwEf4Nt/../../sv-benchmarks/c/termination-crafted/Binary_Search-2.c [2021-10-13 01:08:55,422 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e423d15-390d-4b64-b488-615d280f219f/bin/uautomizer-WNIpwEf4Nt/data/63f47207c/cee292ca147b4c7a920cf088e2581faa/FLAG1bf2d445c [2021-10-13 01:08:56,085 INFO L306 CDTParser]: Found 1 translation units. [2021-10-13 01:08:56,086 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e423d15-390d-4b64-b488-615d280f219f/sv-benchmarks/c/termination-crafted/Binary_Search-2.c [2021-10-13 01:08:56,100 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e423d15-390d-4b64-b488-615d280f219f/bin/uautomizer-WNIpwEf4Nt/data/63f47207c/cee292ca147b4c7a920cf088e2581faa/FLAG1bf2d445c [2021-10-13 01:08:56,466 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e423d15-390d-4b64-b488-615d280f219f/bin/uautomizer-WNIpwEf4Nt/data/63f47207c/cee292ca147b4c7a920cf088e2581faa [2021-10-13 01:08:56,469 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-13 01:08:56,471 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-13 01:08:56,477 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-13 01:08:56,478 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-13 01:08:56,485 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-13 01:08:56,486 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 01:08:56" (1/1) ... [2021-10-13 01:08:56,487 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2f1c943e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:08:56, skipping insertion in model container [2021-10-13 01:08:56,490 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 01:08:56" (1/1) ... [2021-10-13 01:08:56,499 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-13 01:08:56,522 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-13 01:08:56,732 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 01:08:56,736 INFO L203 MainTranslator]: Completed pre-run [2021-10-13 01:08:56,753 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 01:08:56,768 INFO L208 MainTranslator]: Completed translation [2021-10-13 01:08:56,768 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:08:56 WrapperNode [2021-10-13 01:08:56,769 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-13 01:08:56,770 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-13 01:08:56,771 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-13 01:08:56,771 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-13 01:08:56,780 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:08:56" (1/1) ... [2021-10-13 01:08:56,786 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:08:56" (1/1) ... [2021-10-13 01:08:56,806 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-13 01:08:56,808 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-13 01:08:56,808 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-13 01:08:56,808 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-13 01:08:56,818 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:08:56" (1/1) ... [2021-10-13 01:08:56,819 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:08:56" (1/1) ... [2021-10-13 01:08:56,820 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:08:56" (1/1) ... [2021-10-13 01:08:56,820 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:08:56" (1/1) ... [2021-10-13 01:08:56,823 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:08:56" (1/1) ... [2021-10-13 01:08:56,825 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:08:56" (1/1) ... [2021-10-13 01:08:56,826 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:08:56" (1/1) ... [2021-10-13 01:08:56,828 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-13 01:08:56,829 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-13 01:08:56,829 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-13 01:08:56,830 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-13 01:08:56,831 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:08:56" (1/1) ... [2021-10-13 01:08:56,840 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:08:56,852 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e423d15-390d-4b64-b488-615d280f219f/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:08:56,871 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e423d15-390d-4b64-b488-615d280f219f/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:08:56,902 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e423d15-390d-4b64-b488-615d280f219f/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-10-13 01:08:56,933 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2021-10-13 01:08:56,935 INFO L138 BoogieDeclarations]: Found implementation of procedure bsearch [2021-10-13 01:08:56,935 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-13 01:08:56,935 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-13 01:08:57,169 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-13 01:08:57,182 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2021-10-13 01:08:57,185 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 01:08:57 BoogieIcfgContainer [2021-10-13 01:08:57,185 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-13 01:08:57,190 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-10-13 01:08:57,191 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-10-13 01:08:57,194 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-10-13 01:08:57,197 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-13 01:08:57,197 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 13.10 01:08:56" (1/3) ... [2021-10-13 01:08:57,199 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@b5ae721 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.10 01:08:57, skipping insertion in model container [2021-10-13 01:08:57,199 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-13 01:08:57,200 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:08:56" (2/3) ... [2021-10-13 01:08:57,200 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@b5ae721 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.10 01:08:57, skipping insertion in model container [2021-10-13 01:08:57,201 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-13 01:08:57,201 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 01:08:57" (3/3) ... [2021-10-13 01:08:57,203 INFO L389 chiAutomizerObserver]: Analyzing ICFG Binary_Search-2.c [2021-10-13 01:08:57,269 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-10-13 01:08:57,270 INFO L360 BuchiCegarLoop]: Hoare is false [2021-10-13 01:08:57,270 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-10-13 01:08:57,270 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-13 01:08:57,270 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-13 01:08:57,271 INFO L364 BuchiCegarLoop]: Difference is false [2021-10-13 01:08:57,271 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-13 01:08:57,271 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-10-13 01:08:57,289 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) [2021-10-13 01:08:57,316 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2021-10-13 01:08:57,316 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 01:08:57,316 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 01:08:57,325 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2021-10-13 01:08:57,325 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2021-10-13 01:08:57,326 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-10-13 01:08:57,326 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) [2021-10-13 01:08:57,329 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2021-10-13 01:08:57,329 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 01:08:57,329 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 01:08:57,330 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2021-10-13 01:08:57,330 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2021-10-13 01:08:57,338 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 [2021-10-13 01:08:57,338 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 [2021-10-13 01:08:57,344 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:08:57,344 INFO L82 PathProgramCache]: Analyzing trace with hash 1390416, now seen corresponding path program 1 times [2021-10-13 01:08:57,353 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:08:57,354 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1370360693] [2021-10-13 01:08:57,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:08:57,355 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:08:57,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:08:57,442 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 01:08:57,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:08:57,468 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 01:08:57,472 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:08:57,473 INFO L82 PathProgramCache]: Analyzing trace with hash 927708, now seen corresponding path program 1 times [2021-10-13 01:08:57,473 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:08:57,474 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1020476456] [2021-10-13 01:08:57,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:08:57,474 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:08:57,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:08:57,498 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 01:08:57,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:08:57,514 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 01:08:57,516 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:08:57,516 INFO L82 PathProgramCache]: Analyzing trace with hash -116842581, now seen corresponding path program 1 times [2021-10-13 01:08:57,517 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:08:57,517 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1377736156] [2021-10-13 01:08:57,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:08:57,518 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:08:57,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:08:57,540 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 01:08:57,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:08:57,569 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 01:08:58,131 INFO L210 LassoAnalysis]: Preferences: [2021-10-13 01:08:58,132 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-13 01:08:58,132 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-13 01:08:58,133 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-13 01:08:58,133 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-13 01:08:58,133 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:08:58,133 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-13 01:08:58,133 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-13 01:08:58,134 INFO L133 ssoRankerPreferences]: Filename of dumped script: Binary_Search-2.c_Iteration1_Loop [2021-10-13 01:08:58,134 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-13 01:08:58,134 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-13 01:08:58,162 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 01:08:58,290 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 01:08:58,299 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 01:08:58,303 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 01:08:58,306 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 01:08:58,310 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 01:08:58,313 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 01:08:58,316 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 01:08:58,754 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-13 01:08:58,755 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-10-13 01:08:58,757 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:08:58,757 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e423d15-390d-4b64-b488-615d280f219f/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:08:58,759 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e423d15-390d-4b64-b488-615d280f219f/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:08:58,771 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-13 01:08:58,772 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-13 01:08:58,802 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e423d15-390d-4b64-b488-615d280f219f/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2021-10-13 01:08:58,877 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e423d15-390d-4b64-b488-615d280f219f/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2021-10-13 01:08:58,877 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:08:58,877 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e423d15-390d-4b64-b488-615d280f219f/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:08:58,881 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e423d15-390d-4b64-b488-615d280f219f/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:08:58,887 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-13 01:08:58,888 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-13 01:08:58,925 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e423d15-390d-4b64-b488-615d280f219f/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2021-10-13 01:09:04,904 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-13 01:09:04,925 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e423d15-390d-4b64-b488-615d280f219f/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2021-10-13 01:09:04,925 INFO L210 LassoAnalysis]: Preferences: [2021-10-13 01:09:04,925 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-13 01:09:04,926 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-13 01:09:04,926 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-13 01:09:04,926 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-13 01:09:04,926 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:09:04,926 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-13 01:09:04,926 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-13 01:09:04,926 INFO L133 ssoRankerPreferences]: Filename of dumped script: Binary_Search-2.c_Iteration1_Loop [2021-10-13 01:09:04,927 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-13 01:09:04,927 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-13 01:09:04,930 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 01:09:05,026 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 01:09:05,030 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 01:09:05,035 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 01:09:05,037 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 01:09:05,041 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 01:09:05,045 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 01:09:05,048 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 01:09:05,441 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-13 01:09:05,446 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-13 01:09:05,448 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:09:05,448 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e423d15-390d-4b64-b488-615d280f219f/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:09:05,451 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e423d15-390d-4b64-b488-615d280f219f/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:09:05,458 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 [2021-10-13 01:09:05,470 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 01:09:05,470 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 01:09:05,471 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 01:09:05,471 INFO L204 nArgumentSynthesizer]: 3 loop disjuncts [2021-10-13 01:09:05,471 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 01:09:05,485 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-13 01:09:05,485 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 01:09:05,487 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e423d15-390d-4b64-b488-615d280f219f/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2021-10-13 01:09:05,506 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-13 01:09:05,546 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2021-10-13 01:09:05,546 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2021-10-13 01:09:05,548 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:09:05,548 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e423d15-390d-4b64-b488-615d280f219f/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:09:05,563 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e423d15-390d-4b64-b488-615d280f219f/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:09:05,575 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e423d15-390d-4b64-b488-615d280f219f/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2021-10-13 01:09:05,575 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-13 01:09:05,575 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-10-13 01:09:05,576 INFO L513 LassoAnalysis]: Proved termination. [2021-10-13 01:09:05,577 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 [] [2021-10-13 01:09:05,623 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e423d15-390d-4b64-b488-615d280f219f/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2021-10-13 01:09:05,626 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-10-13 01:09:05,655 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:09:05,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 01:09:05,688 INFO L263 TraceCheckSpWp]: Trace formula consists of 44 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-13 01:09:05,691 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 01:09:05,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 01:09:05,742 INFO L263 TraceCheckSpWp]: Trace formula consists of 45 conjuncts, 10 conjunts are in the unsatisfiable core [2021-10-13 01:09:05,744 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 01:09:06,350 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 01:09:06,373 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 [2021-10-13 01:09:06,375 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) [2021-10-13 01:09:06,552 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. [2021-10-13 01:09:06,553 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 [2021-10-13 01:09:06,555 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) [2021-10-13 01:09:06,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 15 transitions. [2021-10-13 01:09:06,560 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 15 transitions. Stem has 4 letters. Loop has 4 letters. [2021-10-13 01:09:06,563 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-13 01:09:06,564 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 15 transitions. Stem has 8 letters. Loop has 4 letters. [2021-10-13 01:09:06,564 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-13 01:09:06,564 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 15 transitions. Stem has 4 letters. Loop has 8 letters. [2021-10-13 01:09:06,565 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-13 01:09:06,566 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 46 states and 59 transitions. [2021-10-13 01:09:06,580 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2021-10-13 01:09:06,588 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 46 states to 23 states and 26 transitions. [2021-10-13 01:09:06,590 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 14 [2021-10-13 01:09:06,591 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 16 [2021-10-13 01:09:06,591 INFO L73 IsDeterministic]: Start isDeterministic. Operand 23 states and 26 transitions. [2021-10-13 01:09:06,592 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-13 01:09:06,592 INFO L681 BuchiCegarLoop]: Abstraction has 23 states and 26 transitions. [2021-10-13 01:09:06,617 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states and 26 transitions. [2021-10-13 01:09:06,626 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 16. [2021-10-13 01:09:06,627 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) [2021-10-13 01:09:06,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 19 transitions. [2021-10-13 01:09:06,629 INFO L704 BuchiCegarLoop]: Abstraction has 16 states and 19 transitions. [2021-10-13 01:09:06,629 INFO L587 BuchiCegarLoop]: Abstraction has 16 states and 19 transitions. [2021-10-13 01:09:06,629 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-10-13 01:09:06,629 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 16 states and 19 transitions. [2021-10-13 01:09:06,630 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2021-10-13 01:09:06,630 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 01:09:06,630 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 01:09:06,631 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-13 01:09:06,631 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2021-10-13 01:09:06,631 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 [2021-10-13 01:09:06,632 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 [2021-10-13 01:09:06,632 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:09:06,632 INFO L82 PathProgramCache]: Analyzing trace with hash -1527789773, now seen corresponding path program 1 times [2021-10-13 01:09:06,633 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:09:06,633 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2042186664] [2021-10-13 01:09:06,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:09:06,633 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:09:06,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:09:06,647 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 01:09:06,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:09:06,662 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 01:09:06,662 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:09:06,663 INFO L82 PathProgramCache]: Analyzing trace with hash 1847173, now seen corresponding path program 1 times [2021-10-13 01:09:06,663 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:09:06,663 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1250053294] [2021-10-13 01:09:06,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:09:06,664 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:09:06,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:09:06,673 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 01:09:06,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:09:06,681 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 01:09:06,682 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:09:06,702 INFO L82 PathProgramCache]: Analyzing trace with hash -1936650825, now seen corresponding path program 1 times [2021-10-13 01:09:06,703 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:09:06,703 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1844711244] [2021-10-13 01:09:06,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:09:06,704 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:09:06,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:09:06,749 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 01:09:06,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:09:06,798 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 01:09:06,865 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e423d15-390d-4b64-b488-615d280f219f/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2021-10-13 01:09:07,587 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 13.10 01:09:07 BoogieIcfgContainer [2021-10-13 01:09:07,589 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-10-13 01:09:07,589 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-13 01:09:07,590 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-13 01:09:07,590 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-13 01:09:07,590 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 01:08:57" (3/4) ... [2021-10-13 01:09:07,593 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2021-10-13 01:09:07,651 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e423d15-390d-4b64-b488-615d280f219f/bin/uautomizer-WNIpwEf4Nt/witness.graphml [2021-10-13 01:09:07,652 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-13 01:09:07,656 INFO L168 Benchmark]: Toolchain (without parser) took 11183.53 ms. Allocated memory was 102.8 MB in the beginning and 123.7 MB in the end (delta: 21.0 MB). Free memory was 69.7 MB in the beginning and 62.7 MB in the end (delta: 6.9 MB). Peak memory consumption was 27.8 MB. Max. memory is 16.1 GB. [2021-10-13 01:09:07,656 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 102.8 MB. Free memory is still 56.7 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 01:09:07,657 INFO L168 Benchmark]: CACSL2BoogieTranslator took 292.09 ms. Allocated memory is still 102.8 MB. Free memory was 69.5 MB in the beginning and 79.2 MB in the end (delta: -9.7 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-13 01:09:07,658 INFO L168 Benchmark]: Boogie Procedure Inliner took 36.51 ms. Allocated memory is still 102.8 MB. Free memory was 79.2 MB in the beginning and 78.0 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 01:09:07,659 INFO L168 Benchmark]: Boogie Preprocessor took 20.71 ms. Allocated memory is still 102.8 MB. Free memory was 78.0 MB in the beginning and 77.0 MB in the end (delta: 986.8 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-13 01:09:07,660 INFO L168 Benchmark]: RCFGBuilder took 360.14 ms. Allocated memory is still 102.8 MB. Free memory was 77.0 MB in the beginning and 68.6 MB in the end (delta: 8.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-13 01:09:07,661 INFO L168 Benchmark]: BuchiAutomizer took 10398.51 ms. Allocated memory was 102.8 MB in the beginning and 123.7 MB in the end (delta: 21.0 MB). Free memory was 68.6 MB in the beginning and 64.8 MB in the end (delta: 3.9 MB). Peak memory consumption was 53.9 MB. Max. memory is 16.1 GB. [2021-10-13 01:09:07,661 INFO L168 Benchmark]: Witness Printer took 64.47 ms. Allocated memory is still 123.7 MB. Free memory was 64.8 MB in the beginning and 62.7 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-13 01:09:07,670 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 102.8 MB. Free memory is still 56.7 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 292.09 ms. Allocated memory is still 102.8 MB. Free memory was 69.5 MB in the beginning and 79.2 MB in the end (delta: -9.7 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 36.51 ms. Allocated memory is still 102.8 MB. Free memory was 79.2 MB in the beginning and 78.0 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 20.71 ms. Allocated memory is still 102.8 MB. Free memory was 78.0 MB in the beginning and 77.0 MB in the end (delta: 986.8 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 360.14 ms. Allocated memory is still 102.8 MB. Free memory was 77.0 MB in the beginning and 68.6 MB in the end (delta: 8.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 10398.51 ms. Allocated memory was 102.8 MB in the beginning and 123.7 MB in the end (delta: 21.0 MB). Free memory was 68.6 MB in the beginning and 64.8 MB in the end (delta: 3.9 MB). Peak memory consumption was 53.9 MB. Max. memory is 16.1 GB. * Witness Printer took 64.47 ms. Allocated memory is still 123.7 MB. Free memory was 64.8 MB in the beginning and 62.7 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 1 terminating modules (0 trivial, 1 deterministic, 0 nondeterministic) and one nonterminating remainder module.One deterministic module has affine ranking function -1 * \old(i) + \old(j) and consists of 4 locations. The remainder module has 16 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 10.3s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 9.2s. Construction of modules took 0.0s. Büchi inclusion checks took 0.8s. Highest rank in rank-based complementation 3. Minimization of det autom 0. Minimization of nondet autom 1. Automata minimization 19.4ms AutomataMinimizationTime, 1 MinimizatonAttempts, 7 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 16 states and ocurred in iteration 1. Nontrivial modules had stage [1, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 13 SDtfs, 20 SDslu, 4 SDs, 0 SdLazy, 22 SolverSat, 3 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 37.0ms Time LassoAnalysisResults: nont1 unkn0 SFLI0 SFLT1 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital60 mio100 ax100 hnf96 lsp172 ukn62 mio100 lsp100 div207 bol100 ite100 ukn100 eq138 hnf61 smp91 dnf356 smp41 tf101 neg99 sie106 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: sat Degree: 0 Time: 128ms VariablesStem: 0 VariablesLoop: 6 DisjunctsStem: 1 DisjunctsLoop: 3 SupportingInvariants: 0 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 1 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 6.1s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 13]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {} State at position 1 is {\old(j)=0, \result=0, \old(i)=-1, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6df006e5=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4b39a3e4=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1a91b4a7=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2656fe2a=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1513181d=0, NULL=0, i=-1, mid=0, j=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@36ddceb=0, x=0, y=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 13]: 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) [L10] COND FALSE !(i>=j) [L11] int mid = (i+j)/2; [L12] COND TRUE __VERIFIER_nondet_int() Loop: [L13] CALL bsearch(i,mid) [L10] COND FALSE !(i>=j) [L11] int mid = (i+j)/2; [L12] COND TRUE __VERIFIER_nondet_int() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2021-10-13 01:09:07,737 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e423d15-390d-4b64-b488-615d280f219f/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...