./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 b2eff8ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7928933-424f-4e59-a3a1-79023c642121/bin/uautomizer-UnR33cPsHg/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7928933-424f-4e59-a3a1-79023c642121/bin/uautomizer-UnR33cPsHg/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7928933-424f-4e59-a3a1-79023c642121/bin/uautomizer-UnR33cPsHg/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7928933-424f-4e59-a3a1-79023c642121/bin/uautomizer-UnR33cPsHg/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-crafted/Binary_Search-2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7928933-424f-4e59-a3a1-79023c642121/bin/uautomizer-UnR33cPsHg/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7928933-424f-4e59-a3a1-79023c642121/bin/uautomizer-UnR33cPsHg --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 c62b8cd14983fa4dda29102c5113315628115eea4aa89f3549fa0abedadf594b .................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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-b2eff8b [2021-10-28 09:21:10,496 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-28 09:21:10,499 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-28 09:21:10,543 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-28 09:21:10,544 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-28 09:21:10,545 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-28 09:21:10,548 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-28 09:21:10,551 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-28 09:21:10,554 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-28 09:21:10,555 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-28 09:21:10,557 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-28 09:21:10,559 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-28 09:21:10,560 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-28 09:21:10,561 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-28 09:21:10,563 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-28 09:21:10,566 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-28 09:21:10,567 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-28 09:21:10,569 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-28 09:21:10,572 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-28 09:21:10,576 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-28 09:21:10,579 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-28 09:21:10,582 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-28 09:21:10,588 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-28 09:21:10,589 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-28 09:21:10,595 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-28 09:21:10,595 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-28 09:21:10,596 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-28 09:21:10,598 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-28 09:21:10,607 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-28 09:21:10,609 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-28 09:21:10,611 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-28 09:21:10,612 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-28 09:21:10,614 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-28 09:21:10,616 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-28 09:21:10,619 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-28 09:21:10,619 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-28 09:21:10,620 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-28 09:21:10,620 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-28 09:21:10,620 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-28 09:21:10,622 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-28 09:21:10,623 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-28 09:21:10,625 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7928933-424f-4e59-a3a1-79023c642121/bin/uautomizer-UnR33cPsHg/config/svcomp-Termination-64bit-Automizer_Default.epf [2021-10-28 09:21:10,675 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-28 09:21:10,675 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-28 09:21:10,676 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-28 09:21:10,676 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-28 09:21:10,678 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-28 09:21:10,678 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-28 09:21:10,678 INFO L138 SettingsManager]: * Use SBE=true [2021-10-28 09:21:10,679 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-10-28 09:21:10,679 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-10-28 09:21:10,679 INFO L138 SettingsManager]: * Use old map elimination=false [2021-10-28 09:21:10,679 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-10-28 09:21:10,680 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-10-28 09:21:10,680 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-10-28 09:21:10,680 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-28 09:21:10,681 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-28 09:21:10,681 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-28 09:21:10,681 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-28 09:21:10,681 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-10-28 09:21:10,682 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-10-28 09:21:10,682 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-10-28 09:21:10,682 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-28 09:21:10,683 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-10-28 09:21:10,683 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-28 09:21:10,683 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-10-28 09:21:10,683 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-28 09:21:10,684 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-28 09:21:10,684 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-28 09:21:10,684 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-28 09:21:10,685 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-28 09:21:10,686 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-10-28 09:21:10,686 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_d7928933-424f-4e59-a3a1-79023c642121/bin/uautomizer-UnR33cPsHg/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7928933-424f-4e59-a3a1-79023c642121/bin/uautomizer-UnR33cPsHg Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c62b8cd14983fa4dda29102c5113315628115eea4aa89f3549fa0abedadf594b [2021-10-28 09:21:10,979 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-28 09:21:11,009 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-28 09:21:11,013 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-28 09:21:11,016 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-28 09:21:11,017 INFO L275 PluginConnector]: CDTParser initialized [2021-10-28 09:21:11,019 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7928933-424f-4e59-a3a1-79023c642121/bin/uautomizer-UnR33cPsHg/../../sv-benchmarks/c/termination-crafted/Binary_Search-2.c [2021-10-28 09:21:11,124 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7928933-424f-4e59-a3a1-79023c642121/bin/uautomizer-UnR33cPsHg/data/7bf6af47a/b7ace813bbd54937a728dbfdcc0f4e74/FLAGb3ebc93ca [2021-10-28 09:21:11,635 INFO L306 CDTParser]: Found 1 translation units. [2021-10-28 09:21:11,636 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7928933-424f-4e59-a3a1-79023c642121/sv-benchmarks/c/termination-crafted/Binary_Search-2.c [2021-10-28 09:21:11,643 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7928933-424f-4e59-a3a1-79023c642121/bin/uautomizer-UnR33cPsHg/data/7bf6af47a/b7ace813bbd54937a728dbfdcc0f4e74/FLAGb3ebc93ca [2021-10-28 09:21:12,016 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7928933-424f-4e59-a3a1-79023c642121/bin/uautomizer-UnR33cPsHg/data/7bf6af47a/b7ace813bbd54937a728dbfdcc0f4e74 [2021-10-28 09:21:12,018 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-28 09:21:12,020 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-28 09:21:12,022 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-28 09:21:12,023 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-28 09:21:12,040 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-28 09:21:12,041 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 09:21:12" (1/1) ... [2021-10-28 09:21:12,043 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6e7138ae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:21:12, skipping insertion in model container [2021-10-28 09:21:12,044 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 09:21:12" (1/1) ... [2021-10-28 09:21:12,052 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-28 09:21:12,069 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-28 09:21:12,207 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 09:21:12,210 INFO L203 MainTranslator]: Completed pre-run [2021-10-28 09:21:12,238 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 09:21:12,258 INFO L208 MainTranslator]: Completed translation [2021-10-28 09:21:12,259 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:21:12 WrapperNode [2021-10-28 09:21:12,259 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-28 09:21:12,262 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-28 09:21:12,262 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-28 09:21:12,263 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-28 09:21:12,275 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:21:12" (1/1) ... [2021-10-28 09:21:12,281 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:21:12" (1/1) ... [2021-10-28 09:21:12,304 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-28 09:21:12,305 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-28 09:21:12,305 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-28 09:21:12,305 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-28 09:21:12,324 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:21:12" (1/1) ... [2021-10-28 09:21:12,325 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:21:12" (1/1) ... [2021-10-28 09:21:12,326 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:21:12" (1/1) ... [2021-10-28 09:21:12,327 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:21:12" (1/1) ... [2021-10-28 09:21:12,331 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:21:12" (1/1) ... [2021-10-28 09:21:12,335 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:21:12" (1/1) ... [2021-10-28 09:21:12,341 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:21:12" (1/1) ... [2021-10-28 09:21:12,343 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-28 09:21:12,344 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-28 09:21:12,345 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-28 09:21:12,345 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-28 09:21:12,347 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:21:12" (1/1) ... [2021-10-28 09:21:12,357 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:21:12,370 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7928933-424f-4e59-a3a1-79023c642121/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:21:12,390 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7928933-424f-4e59-a3a1-79023c642121/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:21:12,412 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7928933-424f-4e59-a3a1-79023c642121/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-10-28 09:21:12,454 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2021-10-28 09:21:12,455 INFO L138 BoogieDeclarations]: Found implementation of procedure bsearch [2021-10-28 09:21:12,455 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-28 09:21:12,455 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-28 09:21:12,705 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-28 09:21:12,706 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2021-10-28 09:21:12,707 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 09:21:12 BoogieIcfgContainer [2021-10-28 09:21:12,708 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-28 09:21:12,710 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-10-28 09:21:12,710 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-10-28 09:21:12,717 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-10-28 09:21:12,718 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-28 09:21:12,719 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.10 09:21:12" (1/3) ... [2021-10-28 09:21:12,720 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@b3dc204 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.10 09:21:12, skipping insertion in model container [2021-10-28 09:21:12,720 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-28 09:21:12,720 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:21:12" (2/3) ... [2021-10-28 09:21:12,721 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@b3dc204 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.10 09:21:12, skipping insertion in model container [2021-10-28 09:21:12,721 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-28 09:21:12,721 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 09:21:12" (3/3) ... [2021-10-28 09:21:12,723 INFO L389 chiAutomizerObserver]: Analyzing ICFG Binary_Search-2.c [2021-10-28 09:21:12,778 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-10-28 09:21:12,778 INFO L360 BuchiCegarLoop]: Hoare is false [2021-10-28 09:21:12,778 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-10-28 09:21:12,778 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-28 09:21:12,779 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-28 09:21:12,779 INFO L364 BuchiCegarLoop]: Difference is false [2021-10-28 09:21:12,779 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-28 09:21:12,779 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-10-28 09:21:12,797 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) [2021-10-28 09:21:12,824 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2021-10-28 09:21:12,824 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 09:21:12,825 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 09:21:12,834 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2021-10-28 09:21:12,834 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2021-10-28 09:21:12,834 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-10-28 09:21:12,834 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) [2021-10-28 09:21:12,837 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2021-10-28 09:21:12,837 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 09:21:12,838 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 09:21:12,838 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2021-10-28 09:21:12,838 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2021-10-28 09:21:12,847 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 [2021-10-28 09:21:12,847 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 [2021-10-28 09:21:12,854 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:21:12,855 INFO L85 PathProgramCache]: Analyzing trace with hash 1390416, now seen corresponding path program 1 times [2021-10-28 09:21:12,866 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:21:12,867 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [742724563] [2021-10-28 09:21:12,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:21:12,868 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:21:12,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:21:12,955 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:21:12,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:21:12,985 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:21:12,990 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:21:12,990 INFO L85 PathProgramCache]: Analyzing trace with hash 927708, now seen corresponding path program 1 times [2021-10-28 09:21:12,990 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:21:12,991 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2133208628] [2021-10-28 09:21:12,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:21:12,991 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:21:13,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:21:13,018 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:21:13,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:21:13,036 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:21:13,039 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:21:13,039 INFO L85 PathProgramCache]: Analyzing trace with hash -116842581, now seen corresponding path program 1 times [2021-10-28 09:21:13,039 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:21:13,040 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [546386615] [2021-10-28 09:21:13,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:21:13,041 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:21:13,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:21:13,064 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:21:13,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:21:13,110 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:21:13,635 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 09:21:13,635 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 09:21:13,636 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 09:21:13,636 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 09:21:13,636 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-28 09:21:13,636 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:21:13,636 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 09:21:13,637 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 09:21:13,637 INFO L133 ssoRankerPreferences]: Filename of dumped script: Binary_Search-2.c_Iteration1_Loop [2021-10-28 09:21:13,637 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 09:21:13,637 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 09:21:13,663 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:21:13,774 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:21:13,777 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:21:13,781 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:21:13,784 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:21:13,800 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:21:13,803 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:21:13,806 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:21:14,259 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 09:21:14,260 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-10-28 09:21:14,263 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:21:14,263 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7928933-424f-4e59-a3a1-79023c642121/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:21:14,267 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7928933-424f-4e59-a3a1-79023c642121/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:21:14,274 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 09:21:14,274 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 09:21:14,315 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7928933-424f-4e59-a3a1-79023c642121/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2021-10-28 09:21:14,391 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7928933-424f-4e59-a3a1-79023c642121/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2021-10-28 09:21:14,394 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:21:14,394 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7928933-424f-4e59-a3a1-79023c642121/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:21:14,396 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7928933-424f-4e59-a3a1-79023c642121/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:21:14,406 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-28 09:21:14,406 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 09:21:14,440 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7928933-424f-4e59-a3a1-79023c642121/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2021-10-28 09:21:20,330 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-28 09:21:20,334 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7928933-424f-4e59-a3a1-79023c642121/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Ended with exit code 0 [2021-10-28 09:21:20,335 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 09:21:20,335 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 09:21:20,335 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 09:21:20,336 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 09:21:20,336 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-28 09:21:20,336 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:21:20,336 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 09:21:20,336 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 09:21:20,336 INFO L133 ssoRankerPreferences]: Filename of dumped script: Binary_Search-2.c_Iteration1_Loop [2021-10-28 09:21:20,336 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 09:21:20,336 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 09:21:20,339 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:21:20,430 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:21:20,433 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:21:20,437 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:21:20,440 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:21:20,443 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:21:20,446 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:21:20,449 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:21:20,795 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 09:21:20,801 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-28 09:21:20,804 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:21:20,805 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7928933-424f-4e59-a3a1-79023c642121/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:21:20,811 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7928933-424f-4e59-a3a1-79023c642121/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:21:20,817 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 [2021-10-28 09:21:20,829 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:21:20,830 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:21:20,830 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:21:20,830 INFO L204 nArgumentSynthesizer]: 3 loop disjuncts [2021-10-28 09:21:20,831 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:21:20,841 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7928933-424f-4e59-a3a1-79023c642121/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2021-10-28 09:21:20,846 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 09:21:20,847 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:21:20,861 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-28 09:21:20,872 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2021-10-28 09:21:20,873 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2021-10-28 09:21:20,874 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:21:20,875 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7928933-424f-4e59-a3a1-79023c642121/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:21:20,895 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7928933-424f-4e59-a3a1-79023c642121/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:21:20,896 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7928933-424f-4e59-a3a1-79023c642121/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2021-10-28 09:21:20,912 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-28 09:21:20,912 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-10-28 09:21:20,913 INFO L513 LassoAnalysis]: Proved termination. [2021-10-28 09:21:20,914 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 [] [2021-10-28 09:21:20,944 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7928933-424f-4e59-a3a1-79023c642121/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2021-10-28 09:21:20,947 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-10-28 09:21:20,972 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:21:21,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:21:21,012 INFO L263 TraceCheckSpWp]: Trace formula consists of 44 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-28 09:21:21,014 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:21:21,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:21:21,073 INFO L263 TraceCheckSpWp]: Trace formula consists of 45 conjuncts, 10 conjunts are in the unsatisfiable core [2021-10-28 09:21:21,075 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:21:21,446 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7928933-424f-4e59-a3a1-79023c642121/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2021-10-28 09:21:21,707 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:21:21,726 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 [2021-10-28 09:21:21,728 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) [2021-10-28 09:21:21,904 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. [2021-10-28 09:21:21,905 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 [2021-10-28 09:21:21,907 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) [2021-10-28 09:21:21,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 15 transitions. [2021-10-28 09:21:21,912 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 15 transitions. Stem has 4 letters. Loop has 4 letters. [2021-10-28 09:21:21,916 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 09:21:21,916 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 15 transitions. Stem has 8 letters. Loop has 4 letters. [2021-10-28 09:21:21,917 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 09:21:21,917 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 15 transitions. Stem has 4 letters. Loop has 8 letters. [2021-10-28 09:21:21,917 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 09:21:21,918 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 46 states and 59 transitions. [2021-10-28 09:21:21,933 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2021-10-28 09:21:21,941 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 46 states to 23 states and 26 transitions. [2021-10-28 09:21:21,943 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 14 [2021-10-28 09:21:21,944 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 16 [2021-10-28 09:21:21,945 INFO L73 IsDeterministic]: Start isDeterministic. Operand 23 states and 26 transitions. [2021-10-28 09:21:21,945 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-28 09:21:21,945 INFO L681 BuchiCegarLoop]: Abstraction has 23 states and 26 transitions. [2021-10-28 09:21:21,966 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states and 26 transitions. [2021-10-28 09:21:21,977 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 16. [2021-10-28 09:21:21,978 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) [2021-10-28 09:21:21,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 19 transitions. [2021-10-28 09:21:21,981 INFO L704 BuchiCegarLoop]: Abstraction has 16 states and 19 transitions. [2021-10-28 09:21:21,981 INFO L587 BuchiCegarLoop]: Abstraction has 16 states and 19 transitions. [2021-10-28 09:21:21,981 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-10-28 09:21:21,981 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 16 states and 19 transitions. [2021-10-28 09:21:21,983 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2021-10-28 09:21:21,983 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 09:21:21,983 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 09:21:21,984 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:21:21,984 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2021-10-28 09:21:21,984 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 [2021-10-28 09:21:21,985 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 [2021-10-28 09:21:21,986 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:21:21,986 INFO L85 PathProgramCache]: Analyzing trace with hash -1527789773, now seen corresponding path program 1 times [2021-10-28 09:21:21,986 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:21:21,987 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2037681226] [2021-10-28 09:21:21,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:21:21,988 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:21:22,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:21:22,024 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:21:22,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:21:22,043 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:21:22,045 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:21:22,046 INFO L85 PathProgramCache]: Analyzing trace with hash 1847173, now seen corresponding path program 1 times [2021-10-28 09:21:22,046 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:21:22,048 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [731837417] [2021-10-28 09:21:22,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:21:22,050 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:21:22,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:21:22,067 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:21:22,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:21:22,079 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:21:22,080 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:21:22,080 INFO L85 PathProgramCache]: Analyzing trace with hash -1936650825, now seen corresponding path program 1 times [2021-10-28 09:21:22,081 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:21:22,081 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [59183169] [2021-10-28 09:21:22,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:21:22,082 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:21:22,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:21:22,143 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:21:22,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:21:22,182 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:21:22,898 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.10 09:21:22 BoogieIcfgContainer [2021-10-28 09:21:22,898 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-10-28 09:21:22,899 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-28 09:21:22,899 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-28 09:21:22,899 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-28 09:21:22,900 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 09:21:12" (3/4) ... [2021-10-28 09:21:22,904 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2021-10-28 09:21:22,946 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7928933-424f-4e59-a3a1-79023c642121/bin/uautomizer-UnR33cPsHg/witness.graphml [2021-10-28 09:21:22,946 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-28 09:21:22,948 INFO L168 Benchmark]: Toolchain (without parser) took 10926.69 ms. Allocated memory is still 109.1 MB. Free memory was 74.2 MB in the beginning and 69.7 MB in the end (delta: 4.5 MB). Peak memory consumption was 4.7 MB. Max. memory is 16.1 GB. [2021-10-28 09:21:22,949 INFO L168 Benchmark]: CDTParser took 0.30 ms. Allocated memory is still 83.9 MB. Free memory was 57.0 MB in the beginning and 57.0 MB in the end (delta: 21.2 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 09:21:22,950 INFO L168 Benchmark]: CACSL2BoogieTranslator took 237.58 ms. Allocated memory is still 109.1 MB. Free memory was 74.2 MB in the beginning and 86.9 MB in the end (delta: -12.7 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-28 09:21:22,951 INFO L168 Benchmark]: Boogie Procedure Inliner took 41.96 ms. Allocated memory is still 109.1 MB. Free memory was 86.9 MB in the beginning and 85.7 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 09:21:22,951 INFO L168 Benchmark]: Boogie Preprocessor took 38.29 ms. Allocated memory is still 109.1 MB. Free memory was 85.7 MB in the beginning and 84.8 MB in the end (delta: 859.8 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-28 09:21:22,952 INFO L168 Benchmark]: RCFGBuilder took 364.21 ms. Allocated memory is still 109.1 MB. Free memory was 84.8 MB in the beginning and 76.4 MB in the end (delta: 8.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-28 09:21:22,953 INFO L168 Benchmark]: BuchiAutomizer took 10188.86 ms. Allocated memory is still 109.1 MB. Free memory was 76.4 MB in the beginning and 70.6 MB in the end (delta: 5.8 MB). Peak memory consumption was 45.4 MB. Max. memory is 16.1 GB. [2021-10-28 09:21:22,954 INFO L168 Benchmark]: Witness Printer took 47.31 ms. Allocated memory is still 109.1 MB. Free memory was 70.6 MB in the beginning and 69.7 MB in the end (delta: 896.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 09:21:22,957 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30 ms. Allocated memory is still 83.9 MB. Free memory was 57.0 MB in the beginning and 57.0 MB in the end (delta: 21.2 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 237.58 ms. Allocated memory is still 109.1 MB. Free memory was 74.2 MB in the beginning and 86.9 MB in the end (delta: -12.7 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 41.96 ms. Allocated memory is still 109.1 MB. Free memory was 86.9 MB in the beginning and 85.7 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 38.29 ms. Allocated memory is still 109.1 MB. Free memory was 85.7 MB in the beginning and 84.8 MB in the end (delta: 859.8 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 364.21 ms. Allocated memory is still 109.1 MB. Free memory was 84.8 MB in the beginning and 76.4 MB in the end (delta: 8.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 10188.86 ms. Allocated memory is still 109.1 MB. Free memory was 76.4 MB in the beginning and 70.6 MB in the end (delta: 5.8 MB). Peak memory consumption was 45.4 MB. Max. memory is 16.1 GB. * Witness Printer took 47.31 ms. Allocated memory is still 109.1 MB. Free memory was 70.6 MB in the beginning and 69.7 MB in the end (delta: 896.0 kB). There was no memory consumed. 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 10.1s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 9.0s. Construction of modules took 0.0s. Büchi inclusion checks took 0.9s. Highest rank in rank-based complementation 3. Minimization of det autom 0. Minimization of nondet autom 1. Automata minimization 0.0s 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, 0.0s 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: 111ms VariablesStem: 0 VariablesLoop: 6 DisjunctsStem: 1 DisjunctsLoop: 3 SupportingInvariants: 0 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 1 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 6.0s - 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@39d2e122=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3fbae248=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@73d945fb=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@713fec00=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@48e1dd11=0, NULL=0, i=-1, mid=0, j=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5ac9ef8e=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! [2021-10-28 09:21:23,019 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7928933-424f-4e59-a3a1-79023c642121/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...