./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/divbin_valuebound100.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b6cf7db-7d8c-4f79-b7ad-20a1a39e672c/bin/ukojak-verify-CZk0znPC7b/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b6cf7db-7d8c-4f79-b7ad-20a1a39e672c/bin/ukojak-verify-CZk0znPC7b/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b6cf7db-7d8c-4f79-b7ad-20a1a39e672c/bin/ukojak-verify-CZk0znPC7b/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b6cf7db-7d8c-4f79-b7ad-20a1a39e672c/bin/ukojak-verify-CZk0znPC7b/config/KojakReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/divbin_valuebound100.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b6cf7db-7d8c-4f79-b7ad-20a1a39e672c/bin/ukojak-verify-CZk0znPC7b/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b6cf7db-7d8c-4f79-b7ad-20a1a39e672c/bin/ukojak-verify-CZk0znPC7b --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 918183af41ed822b080517d21adc4e88771d95d1ab967de55d618cd7a5912a2d --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-06 05:47:31,578 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-06 05:47:31,628 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b6cf7db-7d8c-4f79-b7ad-20a1a39e672c/bin/ukojak-verify-CZk0znPC7b/config/svcomp-Reach-32bit-Kojak_Default.epf [2024-12-06 05:47:31,633 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-06 05:47:31,633 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2024-12-06 05:47:31,650 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-06 05:47:31,651 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-06 05:47:31,651 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-12-06 05:47:31,652 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-06 05:47:31,652 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-06 05:47:31,652 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-06 05:47:31,652 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-06 05:47:31,652 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-06 05:47:31,652 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-06 05:47:31,652 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-06 05:47:31,652 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-06 05:47:31,652 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-06 05:47:31,652 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-06 05:47:31,652 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-06 05:47:31,652 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-06 05:47:31,653 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-06 05:47:31,653 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-06 05:47:31,653 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-06 05:47:31,653 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-12-06 05:47:31,653 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-12-06 05:47:31,653 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-12-06 05:47:31,653 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-06 05:47:31,653 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-12-06 05:47:31,653 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-06 05:47:31,653 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-06 05:47:31,653 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-06 05:47:31,653 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2024-12-06 05:47:31,653 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-06 05:47:31,654 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_7b6cf7db-7d8c-4f79-b7ad-20a1a39e672c/bin/ukojak-verify-CZk0znPC7b Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness 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(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 918183af41ed822b080517d21adc4e88771d95d1ab967de55d618cd7a5912a2d [2024-12-06 05:47:31,892 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-06 05:47:31,901 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-06 05:47:31,903 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-06 05:47:31,905 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-06 05:47:31,905 INFO L274 PluginConnector]: CDTParser initialized [2024-12-06 05:47:31,906 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b6cf7db-7d8c-4f79-b7ad-20a1a39e672c/bin/ukojak-verify-CZk0znPC7b/../../sv-benchmarks/c/nla-digbench-scaling/divbin_valuebound100.i [2024-12-06 05:47:34,614 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b6cf7db-7d8c-4f79-b7ad-20a1a39e672c/bin/ukojak-verify-CZk0znPC7b/data/cc00d3053/b353e1f210124673ab4128227d434977/FLAGd298097a9 [2024-12-06 05:47:34,800 INFO L384 CDTParser]: Found 1 translation units. [2024-12-06 05:47:34,801 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b6cf7db-7d8c-4f79-b7ad-20a1a39e672c/sv-benchmarks/c/nla-digbench-scaling/divbin_valuebound100.i [2024-12-06 05:47:34,808 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b6cf7db-7d8c-4f79-b7ad-20a1a39e672c/bin/ukojak-verify-CZk0znPC7b/data/cc00d3053/b353e1f210124673ab4128227d434977/FLAGd298097a9 [2024-12-06 05:47:35,162 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b6cf7db-7d8c-4f79-b7ad-20a1a39e672c/bin/ukojak-verify-CZk0znPC7b/data/cc00d3053/b353e1f210124673ab4128227d434977 [2024-12-06 05:47:35,164 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-06 05:47:35,165 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-06 05:47:35,167 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-06 05:47:35,167 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-06 05:47:35,170 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-06 05:47:35,170 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 05:47:35" (1/1) ... [2024-12-06 05:47:35,171 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2439d392 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:47:35, skipping insertion in model container [2024-12-06 05:47:35,171 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 05:47:35" (1/1) ... [2024-12-06 05:47:35,181 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-06 05:47:35,295 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b6cf7db-7d8c-4f79-b7ad-20a1a39e672c/sv-benchmarks/c/nla-digbench-scaling/divbin_valuebound100.i[950,963] [2024-12-06 05:47:35,310 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-06 05:47:35,319 INFO L200 MainTranslator]: Completed pre-run [2024-12-06 05:47:35,328 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b6cf7db-7d8c-4f79-b7ad-20a1a39e672c/sv-benchmarks/c/nla-digbench-scaling/divbin_valuebound100.i[950,963] [2024-12-06 05:47:35,334 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-06 05:47:35,346 INFO L204 MainTranslator]: Completed translation [2024-12-06 05:47:35,347 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:47:35 WrapperNode [2024-12-06 05:47:35,347 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-06 05:47:35,348 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-06 05:47:35,348 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-06 05:47:35,348 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-06 05:47:35,353 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:47:35" (1/1) ... [2024-12-06 05:47:35,358 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:47:35" (1/1) ... [2024-12-06 05:47:35,371 INFO L138 Inliner]: procedures = 16, calls = 12, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 46 [2024-12-06 05:47:35,372 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-06 05:47:35,372 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-06 05:47:35,372 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-06 05:47:35,372 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-06 05:47:35,378 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:47:35" (1/1) ... [2024-12-06 05:47:35,378 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:47:35" (1/1) ... [2024-12-06 05:47:35,379 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:47:35" (1/1) ... [2024-12-06 05:47:35,379 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:47:35" (1/1) ... [2024-12-06 05:47:35,381 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:47:35" (1/1) ... [2024-12-06 05:47:35,382 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:47:35" (1/1) ... [2024-12-06 05:47:35,385 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:47:35" (1/1) ... [2024-12-06 05:47:35,386 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:47:35" (1/1) ... [2024-12-06 05:47:35,386 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:47:35" (1/1) ... [2024-12-06 05:47:35,388 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-06 05:47:35,388 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-06 05:47:35,388 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-06 05:47:35,389 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-06 05:47:35,389 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:47:35" (1/1) ... [2024-12-06 05:47:35,394 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-12-06 05:47:35,406 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b6cf7db-7d8c-4f79-b7ad-20a1a39e672c/bin/ukojak-verify-CZk0znPC7b/z3 [2024-12-06 05:47:35,415 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b6cf7db-7d8c-4f79-b7ad-20a1a39e672c/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-12-06 05:47:35,418 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b6cf7db-7d8c-4f79-b7ad-20a1a39e672c/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-12-06 05:47:35,439 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-06 05:47:35,439 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-12-06 05:47:35,439 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-12-06 05:47:35,440 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-12-06 05:47:35,440 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-06 05:47:35,440 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-06 05:47:35,440 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-12-06 05:47:35,440 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-12-06 05:47:35,486 INFO L234 CfgBuilder]: Building ICFG [2024-12-06 05:47:35,487 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-06 05:47:35,593 INFO L? ?]: Removed 6 outVars from TransFormulas that were not future-live. [2024-12-06 05:47:35,593 INFO L283 CfgBuilder]: Performing block encoding [2024-12-06 05:47:35,621 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-06 05:47:35,622 INFO L312 CfgBuilder]: Removed 4 assume(true) statements. [2024-12-06 05:47:35,622 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 05:47:35 BoogieIcfgContainer [2024-12-06 05:47:35,622 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-06 05:47:35,622 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-12-06 05:47:35,623 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-12-06 05:47:35,629 INFO L274 PluginConnector]: CodeCheck initialized [2024-12-06 05:47:35,629 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 05:47:35" (1/1) ... [2024-12-06 05:47:35,635 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-06 05:47:35,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 05:47:35,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 21 states and 28 transitions. [2024-12-06 05:47:35,680 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 28 transitions. [2024-12-06 05:47:35,684 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2024-12-06 05:47:35,684 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 05:47:35,685 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 05:47:35,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-12-06 05:47:35,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 05:47:35,824 INFO L256 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-12-06 05:47:35,830 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-06 05:47:36,006 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-12-06 05:47:36,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 05:47:36,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 24 states and 33 transitions. [2024-12-06 05:47:36,217 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 33 transitions. [2024-12-06 05:47:36,218 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2024-12-06 05:47:36,218 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 05:47:36,219 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 05:47:36,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 05:47:36,540 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-12-06 05:47:36,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 05:47:36,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 24 states and 31 transitions. [2024-12-06 05:47:36,882 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 31 transitions. [2024-12-06 05:47:36,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2024-12-06 05:47:36,883 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 05:47:36,883 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 05:47:36,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 05:47:37,369 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-12-06 05:47:38,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 05:47:38,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 27 states and 40 transitions. [2024-12-06 05:47:38,462 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 40 transitions. [2024-12-06 05:47:38,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2024-12-06 05:47:38,464 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 05:47:38,464 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 05:47:38,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-12-06 05:47:38,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 05:47:38,568 INFO L256 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 26 conjuncts are in the unsatisfiable core [2024-12-06 05:47:38,571 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-06 05:47:39,411 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 3 proven. 4 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-12-06 05:47:41,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 05:47:41,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 32 states and 55 transitions. [2024-12-06 05:47:41,925 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 55 transitions. [2024-12-06 05:47:41,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2024-12-06 05:47:41,926 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 05:47:41,926 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 05:47:41,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-12-06 05:47:42,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 05:47:42,049 INFO L256 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 34 conjuncts are in the unsatisfiable core [2024-12-06 05:47:42,051 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-06 05:47:43,324 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 3 proven. 6 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-12-06 05:47:54,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 05:47:54,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 35 states and 64 transitions. [2024-12-06 05:47:54,761 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 64 transitions. [2024-12-06 05:47:54,762 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2024-12-06 05:47:54,762 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 05:47:54,762 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 05:47:54,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 05:47:55,875 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 6 proven. 3 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-12-06 05:48:24,101 WARN L286 SmtUtils]: Spent 10.33s on a formula simplification that was a NOOP. DAG size: 50 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-12-06 05:48:24,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 05:48:24,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 37 states and 71 transitions. [2024-12-06 05:48:24,294 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 71 transitions. [2024-12-06 05:48:24,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2024-12-06 05:48:24,295 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 05:48:24,295 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 05:48:24,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-12-06 05:48:24,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 05:48:24,945 INFO L256 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 39 conjuncts are in the unsatisfiable core [2024-12-06 05:48:24,947 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-06 05:48:28,268 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 4 proven. 11 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-12-06 05:48:47,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 05:48:47,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 43 states and 85 transitions. [2024-12-06 05:48:47,224 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 85 transitions. [2024-12-06 05:48:47,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2024-12-06 05:48:47,225 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 05:48:47,225 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 05:48:47,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-12-06 05:48:47,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 05:48:47,607 INFO L256 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 34 conjuncts are in the unsatisfiable core [2024-12-06 05:48:47,609 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-06 05:48:48,580 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 5 proven. 13 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-12-06 05:48:49,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 05:48:49,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 44 states and 88 transitions. [2024-12-06 05:48:49,614 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 88 transitions. [2024-12-06 05:48:49,615 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2024-12-06 05:48:49,615 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 05:48:49,615 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 05:48:49,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-12-06 05:48:50,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 05:48:50,427 INFO L256 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 46 conjuncts are in the unsatisfiable core [2024-12-06 05:48:50,429 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-06 05:49:04,348 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 3 proven. 14 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2024-12-06 05:49:47,020 WARN L286 SmtUtils]: Spent 14.38s on a formula simplification. DAG size of input: 81 DAG size of output: 80 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-12-06 05:49:55,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 05:49:55,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 49 states and 103 transitions. [2024-12-06 05:49:55,676 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 103 transitions. [2024-12-06 05:49:55,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2024-12-06 05:49:55,677 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 05:49:55,677 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 05:50:27,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-12-06 05:50:28,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 05:50:28,608 INFO L256 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 45 conjuncts are in the unsatisfiable core [2024-12-06 05:50:28,611 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-06 05:50:42,026 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 3 proven. 18 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2024-12-06 05:50:51,148 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.33s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-12-06 05:51:26,967 WARN L286 SmtUtils]: Spent 15.08s on a formula simplification. DAG size of input: 96 DAG size of output: 91 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-12-06 05:51:53,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 05:51:53,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 54 states and 118 transitions. [2024-12-06 05:51:53,073 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 118 transitions. [2024-12-06 05:51:53,074 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2024-12-06 05:51:53,074 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 05:51:53,075 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 05:52:24,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-12-06 05:52:26,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 05:52:26,118 INFO L256 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 42 conjuncts are in the unsatisfiable core [2024-12-06 05:52:26,119 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-06 05:52:31,210 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 4 proven. 20 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-12-06 05:52:43,833 WARN L286 SmtUtils]: Spent 11.27s on a formula simplification. DAG size of input: 57 DAG size of output: 52 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-12-06 05:52:47,324 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.52s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-12-06 05:52:48,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 05:52:48,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 55 states and 121 transitions. [2024-12-06 05:52:48,291 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 121 transitions. [2024-12-06 05:52:48,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2024-12-06 05:52:48,292 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 05:52:48,292 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 05:52:48,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-12-06 05:52:49,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 05:52:49,446 INFO L256 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 45 conjuncts are in the unsatisfiable core [2024-12-06 05:52:49,448 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-06 05:53:10,706 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 4 proven. 25 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-12-06 05:53:20,987 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-12-06 05:54:03,980 WARN L286 SmtUtils]: Spent 5.23s on a formula simplification that was a NOOP. DAG size: 102 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-12-06 05:54:10,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 05:54:10,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160 states to 59 states and 129 transitions. [2024-12-06 05:54:10,370 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 129 transitions. [2024-12-06 05:54:10,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2024-12-06 05:54:10,371 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 05:54:10,371 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 05:54:10,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-12-06 05:54:11,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 05:54:11,775 INFO L256 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 44 conjuncts are in the unsatisfiable core [2024-12-06 05:54:11,777 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-06 05:54:31,072 WARN L286 SmtUtils]: Spent 10.24s on a formula simplification that was a NOOP. DAG size: 9 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-12-06 05:54:45,670 WARN L286 SmtUtils]: Spent 10.51s on a formula simplification that was a NOOP. DAG size: 14 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-12-06 05:54:45,834 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 4 proven. 25 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-12-06 05:55:20,497 WARN L286 SmtUtils]: Spent 10.18s on a formula simplification that was a NOOP. DAG size: 59 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-12-06 05:55:20,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 05:55:20,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 164 states to 60 states and 132 transitions. [2024-12-06 05:55:20,511 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 132 transitions. [2024-12-06 05:55:20,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2024-12-06 05:55:20,512 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 05:55:20,512 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 05:55:23,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-12-06 05:55:24,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 05:55:24,284 INFO L256 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 46 conjuncts are in the unsatisfiable core [2024-12-06 05:55:24,286 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-06 05:55:53,264 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 4 proven. 31 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-12-06 05:56:54,062 WARN L286 SmtUtils]: Spent 18.60s on a formula simplification that was a NOOP. DAG size: 111 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-12-06 05:57:16,101 WARN L286 SmtUtils]: Spent 9.36s on a formula simplification that was a NOOP. DAG size: 112 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-12-06 05:57:19,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 05:57:19,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172 states to 64 states and 140 transitions. [2024-12-06 05:57:19,328 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 140 transitions. [2024-12-06 05:57:19,329 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2024-12-06 05:57:19,329 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 05:57:19,329 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 05:57:21,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-12-06 05:57:24,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 05:57:24,341 INFO L256 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 47 conjuncts are in the unsatisfiable core [2024-12-06 05:57:24,342 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-06 05:57:43,430 WARN L286 SmtUtils]: Spent 10.02s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-12-06 05:57:43,777 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 4 proven. 31 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-12-06 05:57:50,825 WARN L286 SmtUtils]: Spent 6.58s on a formula simplification. DAG size of input: 71 DAG size of output: 66 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-12-06 05:57:57,450 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.41s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-12-06 05:57:57,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 05:57:57,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 176 states to 65 states and 143 transitions. [2024-12-06 05:57:57,684 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 143 transitions. [2024-12-06 05:57:57,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2024-12-06 05:57:57,685 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 05:57:57,685 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms