./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_normal_file-51.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 826ab2ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99d90a13-cf44-4a4e-ac7a-2d893361ab5b/bin/utaipan-verify-sOmjnqqW8E/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99d90a13-cf44-4a4e-ac7a-2d893361ab5b/bin/utaipan-verify-sOmjnqqW8E/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99d90a13-cf44-4a4e-ac7a-2d893361ab5b/bin/utaipan-verify-sOmjnqqW8E/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99d90a13-cf44-4a4e-ac7a-2d893361ab5b/bin/utaipan-verify-sOmjnqqW8E/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_normal_file-51.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99d90a13-cf44-4a4e-ac7a-2d893361ab5b/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99d90a13-cf44-4a4e-ac7a-2d893361ab5b/bin/utaipan-verify-sOmjnqqW8E --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 4703bfd85786444b7063ad726d04e3dbfe77bfd14c478aa800342006bdde0646 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 23:40:13,176 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 23:40:13,259 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99d90a13-cf44-4a4e-ac7a-2d893361ab5b/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-Reach-32bit-Taipan_Default.epf [2024-11-13 23:40:13,266 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-13 23:40:13,270 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-13 23:40:13,324 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 23:40:13,325 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-13 23:40:13,326 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-13 23:40:13,326 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-13 23:40:13,326 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-13 23:40:13,327 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-13 23:40:13,327 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-13 23:40:13,327 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-13 23:40:13,327 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-13 23:40:13,327 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-13 23:40:13,327 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-13 23:40:13,328 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-13 23:40:13,328 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-13 23:40:13,328 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-13 23:40:13,328 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-13 23:40:13,328 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-13 23:40:13,329 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-13 23:40:13,329 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 23:40:13,329 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-13 23:40:13,330 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-13 23:40:13,330 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-13 23:40:13,330 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-13 23:40:13,330 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 23:40:13,330 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-13 23:40:13,330 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-13 23:40:13,331 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-13 23:40:13,331 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 23:40:13,331 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-13 23:40:13,331 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-13 23:40:13,331 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 23:40:13,331 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 23:40:13,331 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-13 23:40:13,331 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-13 23:40:13,332 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-13 23:40:13,332 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 23:40:13,332 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-13 23:40:13,332 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-13 23:40:13,332 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-13 23:40:13,332 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-13 23:40:13,332 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-13 23:40:13,334 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-13 23:40:13,334 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-13 23:40:13,334 INFO L153 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_99d90a13-cf44-4a4e-ac7a-2d893361ab5b/bin/utaipan-verify-sOmjnqqW8E 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 -> Taipan 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 -> 4703bfd85786444b7063ad726d04e3dbfe77bfd14c478aa800342006bdde0646 [2024-11-13 23:40:13,794 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 23:40:13,810 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 23:40:13,814 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 23:40:13,816 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 23:40:13,817 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 23:40:13,820 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99d90a13-cf44-4a4e-ac7a-2d893361ab5b/bin/utaipan-verify-sOmjnqqW8E/../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_normal_file-51.i Unable to find full path for "g++" [2024-11-13 23:40:16,366 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 23:40:16,730 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 23:40:16,732 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99d90a13-cf44-4a4e-ac7a-2d893361ab5b/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_normal_file-51.i [2024-11-13 23:40:16,742 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99d90a13-cf44-4a4e-ac7a-2d893361ab5b/bin/utaipan-verify-sOmjnqqW8E/data/3b7b0a9ac/ee74379dea224cf4b99b6c906ca46f95/FLAG85b444cf9 [2024-11-13 23:40:16,760 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99d90a13-cf44-4a4e-ac7a-2d893361ab5b/bin/utaipan-verify-sOmjnqqW8E/data/3b7b0a9ac/ee74379dea224cf4b99b6c906ca46f95 [2024-11-13 23:40:16,763 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 23:40:16,765 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 23:40:16,766 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 23:40:16,767 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 23:40:16,772 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 23:40:16,774 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 11:40:16" (1/1) ... [2024-11-13 23:40:16,775 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7d84824a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:40:16, skipping insertion in model container [2024-11-13 23:40:16,775 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 11:40:16" (1/1) ... [2024-11-13 23:40:16,800 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 23:40:17,018 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_99d90a13-cf44-4a4e-ac7a-2d893361ab5b/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_normal_file-51.i[913,926] [2024-11-13 23:40:17,094 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 23:40:17,110 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 23:40:17,125 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_99d90a13-cf44-4a4e-ac7a-2d893361ab5b/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_normal_file-51.i[913,926] [2024-11-13 23:40:17,176 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 23:40:17,196 INFO L204 MainTranslator]: Completed translation [2024-11-13 23:40:17,197 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:40:17 WrapperNode [2024-11-13 23:40:17,197 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 23:40:17,199 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 23:40:17,199 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 23:40:17,199 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 23:40:17,211 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:40:17" (1/1) ... [2024-11-13 23:40:17,229 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:40:17" (1/1) ... [2024-11-13 23:40:17,293 INFO L138 Inliner]: procedures = 26, calls = 34, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 150 [2024-11-13 23:40:17,294 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 23:40:17,294 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 23:40:17,295 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 23:40:17,295 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 23:40:17,305 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:40:17" (1/1) ... [2024-11-13 23:40:17,305 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:40:17" (1/1) ... [2024-11-13 23:40:17,308 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:40:17" (1/1) ... [2024-11-13 23:40:17,309 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:40:17" (1/1) ... [2024-11-13 23:40:17,318 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:40:17" (1/1) ... [2024-11-13 23:40:17,324 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:40:17" (1/1) ... [2024-11-13 23:40:17,328 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:40:17" (1/1) ... [2024-11-13 23:40:17,334 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:40:17" (1/1) ... [2024-11-13 23:40:17,337 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 23:40:17,341 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 23:40:17,341 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 23:40:17,342 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 23:40:17,346 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:40:17" (1/1) ... [2024-11-13 23:40:17,361 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-13 23:40:17,380 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99d90a13-cf44-4a4e-ac7a-2d893361ab5b/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-13 23:40:17,401 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99d90a13-cf44-4a4e-ac7a-2d893361ab5b/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-13 23:40:17,408 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99d90a13-cf44-4a4e-ac7a-2d893361ab5b/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-13 23:40:17,448 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-13 23:40:17,448 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-13 23:40:17,449 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-13 23:40:17,449 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-13 23:40:17,449 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 23:40:17,449 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 23:40:17,579 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 23:40:17,581 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 23:40:18,049 INFO L? ?]: Removed 18 outVars from TransFormulas that were not future-live. [2024-11-13 23:40:18,049 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 23:40:18,393 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 23:40:18,393 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-13 23:40:18,394 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 11:40:18 BoogieIcfgContainer [2024-11-13 23:40:18,394 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 23:40:18,399 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-13 23:40:18,400 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-13 23:40:18,413 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-13 23:40:18,413 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 11:40:16" (1/3) ... [2024-11-13 23:40:18,414 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4667dda9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 11:40:18, skipping insertion in model container [2024-11-13 23:40:18,414 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:40:17" (2/3) ... [2024-11-13 23:40:18,414 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4667dda9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 11:40:18, skipping insertion in model container [2024-11-13 23:40:18,415 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 11:40:18" (3/3) ... [2024-11-13 23:40:18,418 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodesize_normal_file-51.i [2024-11-13 23:40:18,440 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-13 23:40:18,444 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_fillercode_fillercodesize_normal_file-51.i that has 2 procedures, 42 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-13 23:40:18,542 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-13 23:40:18,566 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@38489321, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-13 23:40:18,566 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-13 23:40:18,572 INFO L276 IsEmpty]: Start isEmpty. Operand has 42 states, 18 states have (on average 1.1666666666666667) internal successors, (21), 19 states have internal predecessors, (21), 21 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) [2024-11-13 23:40:18,585 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2024-11-13 23:40:18,585 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 23:40:18,586 INFO L215 NwaCegarLoop]: trace histogram [21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 23:40:18,587 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 23:40:18,595 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 23:40:18,595 INFO L85 PathProgramCache]: Analyzing trace with hash 1737937364, now seen corresponding path program 1 times [2024-11-13 23:40:18,606 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-13 23:40:18,606 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [843328204] [2024-11-13 23:40:18,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:40:18,609 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 23:40:19,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 23:40:19,210 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 23:40:19,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 23:40:19,707 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2024-11-13 23:40:19,710 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-13 23:40:19,713 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-13 23:40:19,716 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-13 23:40:19,722 INFO L407 BasicCegarLoop]: Path program histogram: [1] [2024-11-13 23:40:19,837 INFO L173 ceAbstractionStarter]: Computing trace abstraction results [2024-11-13 23:40:19,845 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.11 11:40:19 BoogieIcfgContainer [2024-11-13 23:40:19,847 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-13 23:40:19,848 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-13 23:40:19,848 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-13 23:40:19,849 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-13 23:40:19,849 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 11:40:18" (3/4) ... [2024-11-13 23:40:19,854 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-13 23:40:19,855 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-13 23:40:19,857 INFO L158 Benchmark]: Toolchain (without parser) took 3092.21ms. Allocated memory is still 117.4MB. Free memory was 91.5MB in the beginning and 36.7MB in the end (delta: 54.8MB). Peak memory consumption was 55.3MB. Max. memory is 16.1GB. [2024-11-13 23:40:19,860 INFO L158 Benchmark]: CDTParser took 1.19ms. Allocated memory is still 83.9MB. Free memory was 41.3MB in the beginning and 41.1MB in the end (delta: 195.8kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 23:40:19,861 INFO L158 Benchmark]: CACSL2BoogieTranslator took 431.39ms. Allocated memory is still 117.4MB. Free memory was 91.5MB in the beginning and 77.5MB in the end (delta: 14.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-13 23:40:19,861 INFO L158 Benchmark]: Boogie Procedure Inliner took 95.27ms. Allocated memory is still 117.4MB. Free memory was 77.5MB in the beginning and 75.3MB in the end (delta: 2.2MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 23:40:19,862 INFO L158 Benchmark]: Boogie Preprocessor took 45.83ms. Allocated memory is still 117.4MB. Free memory was 75.3MB in the beginning and 74.0MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 23:40:19,862 INFO L158 Benchmark]: RCFGBuilder took 1052.62ms. Allocated memory is still 117.4MB. Free memory was 74.0MB in the beginning and 89.6MB in the end (delta: -15.6MB). Peak memory consumption was 46.9MB. Max. memory is 16.1GB. [2024-11-13 23:40:19,862 INFO L158 Benchmark]: TraceAbstraction took 1447.90ms. Allocated memory is still 117.4MB. Free memory was 88.9MB in the beginning and 36.7MB in the end (delta: 52.2MB). Peak memory consumption was 50.3MB. Max. memory is 16.1GB. [2024-11-13 23:40:19,863 INFO L158 Benchmark]: Witness Printer took 7.47ms. Allocated memory is still 117.4MB. Free memory is still 36.7MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 23:40:19,865 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.19ms. Allocated memory is still 83.9MB. Free memory was 41.3MB in the beginning and 41.1MB in the end (delta: 195.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 431.39ms. Allocated memory is still 117.4MB. Free memory was 91.5MB in the beginning and 77.5MB in the end (delta: 14.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 95.27ms. Allocated memory is still 117.4MB. Free memory was 77.5MB in the beginning and 75.3MB in the end (delta: 2.2MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 45.83ms. Allocated memory is still 117.4MB. Free memory was 75.3MB in the beginning and 74.0MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 1052.62ms. Allocated memory is still 117.4MB. Free memory was 74.0MB in the beginning and 89.6MB in the end (delta: -15.6MB). Peak memory consumption was 46.9MB. Max. memory is 16.1GB. * TraceAbstraction took 1447.90ms. Allocated memory is still 117.4MB. Free memory was 88.9MB in the beginning and 36.7MB in the end (delta: 52.2MB). Peak memory consumption was 50.3MB. Max. memory is 16.1GB. * Witness Printer took 7.47ms. Allocated memory is still 117.4MB. Free memory is still 36.7MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 19]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of someUnaryDOUBLEoperation at line 37, overapproximation of someBinaryDOUBLEComparisonOperation at line 126, overapproximation of someBinaryDOUBLEComparisonOperation at line 47, overapproximation of someBinaryDOUBLEComparisonOperation at line 103, overapproximation of someBinaryDOUBLEComparisonOperation at line 123, overapproximation of someBinaryDOUBLEComparisonOperation at line 125, overapproximation of someBinaryDOUBLEComparisonOperation at line 101. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] unsigned char var_1_1 = 128; [L23] double var_1_4 = 32.3; [L24] double var_1_5 = 0.25; [L25] unsigned char var_1_7 = 2; [L26] signed char var_1_8 = -10; [L27] signed char var_1_9 = 5; [L28] signed char var_1_10 = 4; [L29] signed char var_1_11 = 100; [L30] unsigned long int var_1_12 = 8; [L31] unsigned char var_1_13 = 0; [L32] unsigned long int var_1_15 = 1114432789; [L33] double var_1_17 = 256.8; [L34] double var_1_18 = 1.25; [L35] unsigned long int var_1_19 = 16; [L36] unsigned char var_1_21 = 1; [L37] double var_1_22 = -0.5; [L38] unsigned char var_1_23 = 0; [L39] unsigned char var_1_24 = 1; [L40] unsigned char last_1_var_1_1 = 128; [L41] unsigned long int last_1_var_1_12 = 8; [L42] double last_1_var_1_17 = 256.8; [L43] unsigned char last_1_var_1_21 = 1; [L145] isInitial = 1 [L146] FCALL initially() [L147] COND TRUE 1 [L148] CALL updateLastVariables() [L135] last_1_var_1_1 = var_1_1 [L136] last_1_var_1_12 = var_1_12 [L137] last_1_var_1_17 = var_1_17 [L138] last_1_var_1_21 = var_1_21 [L148] RET updateLastVariables() [L149] CALL updateVariables() [L100] var_1_4 = __VERIFIER_nondet_double() [L101] CALL assume_abort_if_not((var_1_4 >= 0.0F && var_1_4 <= -1.0e-20F) || (var_1_4 <= 9223372.036854776000e+12F && var_1_4 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=8, last_1_var_1_17=1284/5, last_1_var_1_1=128, last_1_var_1_21=1, var_1_10=4, var_1_11=100, var_1_12=8, var_1_13=0, var_1_15=1114432789, var_1_17=1284/5, var_1_18=5/4, var_1_19=16, var_1_1=128, var_1_21=1, var_1_23=0, var_1_24=1, var_1_5=1/4, var_1_7=2, var_1_8=-10, var_1_9=5] [L20] COND FALSE !(!cond) [L101] RET assume_abort_if_not((var_1_4 >= 0.0F && var_1_4 <= -1.0e-20F) || (var_1_4 <= 9223372.036854776000e+12F && var_1_4 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_12=8, last_1_var_1_17=1284/5, last_1_var_1_1=128, last_1_var_1_21=1, var_1_10=4, var_1_11=100, var_1_12=8, var_1_13=0, var_1_15=1114432789, var_1_17=1284/5, var_1_18=5/4, var_1_19=16, var_1_1=128, var_1_21=1, var_1_23=0, var_1_24=1, var_1_5=1/4, var_1_7=2, var_1_8=-10, var_1_9=5] [L102] var_1_5 = __VERIFIER_nondet_double() [L103] CALL assume_abort_if_not((var_1_5 >= 0.0F && var_1_5 <= -1.0e-20F) || (var_1_5 <= 9223372.036854776000e+12F && var_1_5 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=8, last_1_var_1_17=1284/5, last_1_var_1_1=128, last_1_var_1_21=1, var_1_10=4, var_1_11=100, var_1_12=8, var_1_13=0, var_1_15=1114432789, var_1_17=1284/5, var_1_18=5/4, var_1_19=16, var_1_1=128, var_1_21=1, var_1_23=0, var_1_24=1, var_1_7=2, var_1_8=-10, var_1_9=5] [L20] COND FALSE !(!cond) [L103] RET assume_abort_if_not((var_1_5 >= 0.0F && var_1_5 <= -1.0e-20F) || (var_1_5 <= 9223372.036854776000e+12F && var_1_5 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_12=8, last_1_var_1_17=1284/5, last_1_var_1_1=128, last_1_var_1_21=1, var_1_10=4, var_1_11=100, var_1_12=8, var_1_13=0, var_1_15=1114432789, var_1_17=1284/5, var_1_18=5/4, var_1_19=16, var_1_1=128, var_1_21=1, var_1_23=0, var_1_24=1, var_1_7=2, var_1_8=-10, var_1_9=5] [L104] var_1_7 = __VERIFIER_nondet_uchar() [L105] CALL assume_abort_if_not(var_1_7 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=8, last_1_var_1_17=1284/5, last_1_var_1_1=128, last_1_var_1_21=1, var_1_10=4, var_1_11=100, var_1_12=8, var_1_13=0, var_1_15=1114432789, var_1_17=1284/5, var_1_18=5/4, var_1_19=16, var_1_1=128, var_1_21=1, var_1_23=0, var_1_24=1, var_1_8=-10, var_1_9=5] [L20] COND FALSE !(!cond) [L105] RET assume_abort_if_not(var_1_7 >= 0) VAL [isInitial=1, last_1_var_1_12=8, last_1_var_1_17=1284/5, last_1_var_1_1=128, last_1_var_1_21=1, var_1_10=4, var_1_11=100, var_1_12=8, var_1_13=0, var_1_15=1114432789, var_1_17=1284/5, var_1_18=5/4, var_1_19=16, var_1_1=128, var_1_21=1, var_1_23=0, var_1_24=1, var_1_8=-10, var_1_9=5] [L106] CALL assume_abort_if_not(var_1_7 <= 254) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=8, last_1_var_1_17=1284/5, last_1_var_1_1=128, last_1_var_1_21=1, var_1_10=4, var_1_11=100, var_1_12=8, var_1_13=0, var_1_15=1114432789, var_1_17=1284/5, var_1_18=5/4, var_1_19=16, var_1_1=128, var_1_21=1, var_1_23=0, var_1_24=1, var_1_7=128, var_1_8=-10, var_1_9=5] [L20] COND FALSE !(!cond) [L106] RET assume_abort_if_not(var_1_7 <= 254) VAL [isInitial=1, last_1_var_1_12=8, last_1_var_1_17=1284/5, last_1_var_1_1=128, last_1_var_1_21=1, var_1_10=4, var_1_11=100, var_1_12=8, var_1_13=0, var_1_15=1114432789, var_1_17=1284/5, var_1_18=5/4, var_1_19=16, var_1_1=128, var_1_21=1, var_1_23=0, var_1_24=1, var_1_7=128, var_1_8=-10, var_1_9=5] [L107] var_1_9 = __VERIFIER_nondet_char() [L108] CALL assume_abort_if_not(var_1_9 >= -1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=8, last_1_var_1_17=1284/5, last_1_var_1_1=128, last_1_var_1_21=1, var_1_10=4, var_1_11=100, var_1_12=8, var_1_13=0, var_1_15=1114432789, var_1_17=1284/5, var_1_18=5/4, var_1_19=16, var_1_1=128, var_1_21=1, var_1_23=0, var_1_24=1, var_1_7=128, var_1_8=-10, var_1_9=0] [L20] COND FALSE !(!cond) [L108] RET assume_abort_if_not(var_1_9 >= -1) VAL [isInitial=1, last_1_var_1_12=8, last_1_var_1_17=1284/5, last_1_var_1_1=128, last_1_var_1_21=1, var_1_10=4, var_1_11=100, var_1_12=8, var_1_13=0, var_1_15=1114432789, var_1_17=1284/5, var_1_18=5/4, var_1_19=16, var_1_1=128, var_1_21=1, var_1_23=0, var_1_24=1, var_1_7=128, var_1_8=-10, var_1_9=0] [L109] CALL assume_abort_if_not(var_1_9 <= 126) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=8, last_1_var_1_17=1284/5, last_1_var_1_1=128, last_1_var_1_21=1, var_1_10=4, var_1_11=100, var_1_12=8, var_1_13=0, var_1_15=1114432789, var_1_17=1284/5, var_1_18=5/4, var_1_19=16, var_1_1=128, var_1_21=1, var_1_23=0, var_1_24=1, var_1_7=128, var_1_8=-10, var_1_9=0] [L20] COND FALSE !(!cond) [L109] RET assume_abort_if_not(var_1_9 <= 126) VAL [isInitial=1, last_1_var_1_12=8, last_1_var_1_17=1284/5, last_1_var_1_1=128, last_1_var_1_21=1, var_1_10=4, var_1_11=100, var_1_12=8, var_1_13=0, var_1_15=1114432789, var_1_17=1284/5, var_1_18=5/4, var_1_19=16, var_1_1=128, var_1_21=1, var_1_23=0, var_1_24=1, var_1_7=128, var_1_8=-10, var_1_9=0] [L110] var_1_10 = __VERIFIER_nondet_char() [L111] CALL assume_abort_if_not(var_1_10 >= -1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=8, last_1_var_1_17=1284/5, last_1_var_1_1=128, last_1_var_1_21=1, var_1_10=-1, var_1_11=100, var_1_12=8, var_1_13=0, var_1_15=1114432789, var_1_17=1284/5, var_1_18=5/4, var_1_19=16, var_1_1=128, var_1_21=1, var_1_23=0, var_1_24=1, var_1_7=128, var_1_8=-10, var_1_9=0] [L20] COND FALSE !(!cond) [L111] RET assume_abort_if_not(var_1_10 >= -1) VAL [isInitial=1, last_1_var_1_12=8, last_1_var_1_17=1284/5, last_1_var_1_1=128, last_1_var_1_21=1, var_1_10=-1, var_1_11=100, var_1_12=8, var_1_13=0, var_1_15=1114432789, var_1_17=1284/5, var_1_18=5/4, var_1_19=16, var_1_1=128, var_1_21=1, var_1_23=0, var_1_24=1, var_1_7=128, var_1_8=-10, var_1_9=0] [L112] CALL assume_abort_if_not(var_1_10 <= 126) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=8, last_1_var_1_17=1284/5, last_1_var_1_1=128, last_1_var_1_21=1, var_1_10=-1, var_1_11=100, var_1_12=8, var_1_13=0, var_1_15=1114432789, var_1_17=1284/5, var_1_18=5/4, var_1_19=16, var_1_1=128, var_1_21=1, var_1_23=0, var_1_24=1, var_1_7=128, var_1_8=-10, var_1_9=0] [L20] COND FALSE !(!cond) [L112] RET assume_abort_if_not(var_1_10 <= 126) VAL [isInitial=1, last_1_var_1_12=8, last_1_var_1_17=1284/5, last_1_var_1_1=128, last_1_var_1_21=1, var_1_10=-1, var_1_11=100, var_1_12=8, var_1_13=0, var_1_15=1114432789, var_1_17=1284/5, var_1_18=5/4, var_1_19=16, var_1_1=128, var_1_21=1, var_1_23=0, var_1_24=1, var_1_7=128, var_1_8=-10, var_1_9=0] [L113] var_1_11 = __VERIFIER_nondet_char() [L114] CALL assume_abort_if_not(var_1_11 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=8, last_1_var_1_17=1284/5, last_1_var_1_1=128, last_1_var_1_21=1, var_1_10=-1, var_1_11=8, var_1_12=8, var_1_13=0, var_1_15=1114432789, var_1_17=1284/5, var_1_18=5/4, var_1_19=16, var_1_1=128, var_1_21=1, var_1_23=0, var_1_24=1, var_1_7=128, var_1_8=-10, var_1_9=0] [L20] COND FALSE !(!cond) [L114] RET assume_abort_if_not(var_1_11 >= 0) VAL [isInitial=1, last_1_var_1_12=8, last_1_var_1_17=1284/5, last_1_var_1_1=128, last_1_var_1_21=1, var_1_10=-1, var_1_11=8, var_1_12=8, var_1_13=0, var_1_15=1114432789, var_1_17=1284/5, var_1_18=5/4, var_1_19=16, var_1_1=128, var_1_21=1, var_1_23=0, var_1_24=1, var_1_7=128, var_1_8=-10, var_1_9=0] [L115] CALL assume_abort_if_not(var_1_11 <= 126) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=8, last_1_var_1_17=1284/5, last_1_var_1_1=128, last_1_var_1_21=1, var_1_10=-1, var_1_11=8, var_1_12=8, var_1_13=0, var_1_15=1114432789, var_1_17=1284/5, var_1_18=5/4, var_1_19=16, var_1_1=128, var_1_21=1, var_1_23=0, var_1_24=1, var_1_7=128, var_1_8=-10, var_1_9=0] [L20] COND FALSE !(!cond) [L115] RET assume_abort_if_not(var_1_11 <= 126) VAL [isInitial=1, last_1_var_1_12=8, last_1_var_1_17=1284/5, last_1_var_1_1=128, last_1_var_1_21=1, var_1_10=-1, var_1_11=8, var_1_12=8, var_1_13=0, var_1_15=1114432789, var_1_17=1284/5, var_1_18=5/4, var_1_19=16, var_1_1=128, var_1_21=1, var_1_23=0, var_1_24=1, var_1_7=128, var_1_8=-10, var_1_9=0] [L116] var_1_13 = __VERIFIER_nondet_uchar() [L117] CALL assume_abort_if_not(var_1_13 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=8, last_1_var_1_17=1284/5, last_1_var_1_1=128, last_1_var_1_21=1, var_1_10=-1, var_1_11=8, var_1_12=8, var_1_15=1114432789, var_1_17=1284/5, var_1_18=5/4, var_1_19=16, var_1_1=128, var_1_21=1, var_1_23=0, var_1_24=1, var_1_7=128, var_1_8=-10, var_1_9=0] [L20] COND FALSE !(!cond) [L117] RET assume_abort_if_not(var_1_13 >= 0) VAL [isInitial=1, last_1_var_1_12=8, last_1_var_1_17=1284/5, last_1_var_1_1=128, last_1_var_1_21=1, var_1_10=-1, var_1_11=8, var_1_12=8, var_1_15=1114432789, var_1_17=1284/5, var_1_18=5/4, var_1_19=16, var_1_1=128, var_1_21=1, var_1_23=0, var_1_24=1, var_1_7=128, var_1_8=-10, var_1_9=0] [L118] CALL assume_abort_if_not(var_1_13 <= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=8, last_1_var_1_17=1284/5, last_1_var_1_1=128, last_1_var_1_21=1, var_1_10=-1, var_1_11=8, var_1_12=8, var_1_13=1, var_1_15=1114432789, var_1_17=1284/5, var_1_18=5/4, var_1_19=16, var_1_1=128, var_1_21=1, var_1_23=0, var_1_24=1, var_1_7=128, var_1_8=-10, var_1_9=0] [L20] COND FALSE !(!cond) [L118] RET assume_abort_if_not(var_1_13 <= 1) VAL [isInitial=1, last_1_var_1_12=8, last_1_var_1_17=1284/5, last_1_var_1_1=128, last_1_var_1_21=1, var_1_10=-1, var_1_11=8, var_1_12=8, var_1_13=1, var_1_15=1114432789, var_1_17=1284/5, var_1_18=5/4, var_1_19=16, var_1_1=128, var_1_21=1, var_1_23=0, var_1_24=1, var_1_7=128, var_1_8=-10, var_1_9=0] [L119] var_1_15 = __VERIFIER_nondet_ulong() [L120] CALL assume_abort_if_not(var_1_15 >= 1073741823) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=8, last_1_var_1_17=1284/5, last_1_var_1_1=128, last_1_var_1_21=1, var_1_10=-1, var_1_11=8, var_1_12=8, var_1_13=1, var_1_15=1073741823, var_1_17=1284/5, var_1_18=5/4, var_1_19=16, var_1_1=128, var_1_21=1, var_1_23=0, var_1_24=1, var_1_7=128, var_1_8=-10, var_1_9=0] [L20] COND FALSE !(!cond) [L120] RET assume_abort_if_not(var_1_15 >= 1073741823) VAL [isInitial=1, last_1_var_1_12=8, last_1_var_1_17=1284/5, last_1_var_1_1=128, last_1_var_1_21=1, var_1_10=-1, var_1_11=8, var_1_12=8, var_1_13=1, var_1_15=1073741823, var_1_17=1284/5, var_1_18=5/4, var_1_19=16, var_1_1=128, var_1_21=1, var_1_23=0, var_1_24=1, var_1_7=128, var_1_8=-10, var_1_9=0] [L121] CALL assume_abort_if_not(var_1_15 <= 2147483647) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=8, last_1_var_1_17=1284/5, last_1_var_1_1=128, last_1_var_1_21=1, var_1_10=-1, var_1_11=8, var_1_12=8, var_1_13=1, var_1_15=1073741823, var_1_17=1284/5, var_1_18=5/4, var_1_19=16, var_1_1=128, var_1_21=1, var_1_23=0, var_1_24=1, var_1_7=128, var_1_8=-10, var_1_9=0] [L20] COND FALSE !(!cond) [L121] RET assume_abort_if_not(var_1_15 <= 2147483647) VAL [isInitial=1, last_1_var_1_12=8, last_1_var_1_17=1284/5, last_1_var_1_1=128, last_1_var_1_21=1, var_1_10=-1, var_1_11=8, var_1_12=8, var_1_13=1, var_1_15=1073741823, var_1_17=1284/5, var_1_18=5/4, var_1_19=16, var_1_1=128, var_1_21=1, var_1_23=0, var_1_24=1, var_1_7=128, var_1_8=-10, var_1_9=0] [L122] var_1_18 = __VERIFIER_nondet_double() [L123] CALL assume_abort_if_not((var_1_18 >= -922337.2036854765600e+13F && var_1_18 <= -1.0e-20F) || (var_1_18 <= 9223372.036854765600e+12F && var_1_18 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=8, last_1_var_1_17=1284/5, last_1_var_1_1=128, last_1_var_1_21=1, var_1_10=-1, var_1_11=8, var_1_12=8, var_1_13=1, var_1_15=1073741823, var_1_17=1284/5, var_1_19=16, var_1_1=128, var_1_21=1, var_1_23=0, var_1_24=1, var_1_7=128, var_1_8=-10, var_1_9=0] [L20] COND FALSE !(!cond) [L123] RET assume_abort_if_not((var_1_18 >= -922337.2036854765600e+13F && var_1_18 <= -1.0e-20F) || (var_1_18 <= 9223372.036854765600e+12F && var_1_18 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_12=8, last_1_var_1_17=1284/5, last_1_var_1_1=128, last_1_var_1_21=1, var_1_10=-1, var_1_11=8, var_1_12=8, var_1_13=1, var_1_15=1073741823, var_1_17=1284/5, var_1_19=16, var_1_1=128, var_1_21=1, var_1_23=0, var_1_24=1, var_1_7=128, var_1_8=-10, var_1_9=0] [L124] var_1_22 = __VERIFIER_nondet_double() [L125] CALL assume_abort_if_not((var_1_22 >= -922337.2036854776000e+13F && var_1_22 <= -1.0e-20F) || (var_1_22 <= 9223372.036854776000e+12F && var_1_22 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=8, last_1_var_1_17=1284/5, last_1_var_1_1=128, last_1_var_1_21=1, var_1_10=-1, var_1_11=8, var_1_12=8, var_1_13=1, var_1_15=1073741823, var_1_17=1284/5, var_1_19=16, var_1_1=128, var_1_21=1, var_1_23=0, var_1_24=1, var_1_7=128, var_1_8=-10, var_1_9=0] [L20] COND FALSE !(!cond) [L125] RET assume_abort_if_not((var_1_22 >= -922337.2036854776000e+13F && var_1_22 <= -1.0e-20F) || (var_1_22 <= 9223372.036854776000e+12F && var_1_22 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_12=8, last_1_var_1_17=1284/5, last_1_var_1_1=128, last_1_var_1_21=1, var_1_10=-1, var_1_11=8, var_1_12=8, var_1_13=1, var_1_15=1073741823, var_1_17=1284/5, var_1_19=16, var_1_1=128, var_1_21=1, var_1_23=0, var_1_24=1, var_1_7=128, var_1_8=-10, var_1_9=0] [L126] CALL assume_abort_if_not(var_1_22 != 0.0F) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=8, last_1_var_1_17=1284/5, last_1_var_1_1=128, last_1_var_1_21=1, var_1_10=-1, var_1_11=8, var_1_12=8, var_1_13=1, var_1_15=1073741823, var_1_17=1284/5, var_1_19=16, var_1_1=128, var_1_21=1, var_1_23=0, var_1_24=1, var_1_7=128, var_1_8=-10, var_1_9=0] [L20] COND FALSE !(!cond) [L126] RET assume_abort_if_not(var_1_22 != 0.0F) VAL [isInitial=1, last_1_var_1_12=8, last_1_var_1_17=1284/5, last_1_var_1_1=128, last_1_var_1_21=1, var_1_10=-1, var_1_11=8, var_1_12=8, var_1_13=1, var_1_15=1073741823, var_1_17=1284/5, var_1_19=16, var_1_1=128, var_1_21=1, var_1_23=0, var_1_24=1, var_1_7=128, var_1_8=-10, var_1_9=0] [L127] var_1_23 = __VERIFIER_nondet_uchar() [L128] CALL assume_abort_if_not(var_1_23 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=8, last_1_var_1_17=1284/5, last_1_var_1_1=128, last_1_var_1_21=1, var_1_10=-1, var_1_11=8, var_1_12=8, var_1_13=1, var_1_15=1073741823, var_1_17=1284/5, var_1_19=16, var_1_1=128, var_1_21=1, var_1_24=1, var_1_7=128, var_1_8=-10, var_1_9=0] [L20] COND FALSE !(!cond) [L128] RET assume_abort_if_not(var_1_23 >= 0) VAL [isInitial=1, last_1_var_1_12=8, last_1_var_1_17=1284/5, last_1_var_1_1=128, last_1_var_1_21=1, var_1_10=-1, var_1_11=8, var_1_12=8, var_1_13=1, var_1_15=1073741823, var_1_17=1284/5, var_1_19=16, var_1_1=128, var_1_21=1, var_1_24=1, var_1_7=128, var_1_8=-10, var_1_9=0] [L129] CALL assume_abort_if_not(var_1_23 <= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=8, last_1_var_1_17=1284/5, last_1_var_1_1=128, last_1_var_1_21=1, var_1_10=-1, var_1_11=8, var_1_12=8, var_1_13=1, var_1_15=1073741823, var_1_17=1284/5, var_1_19=16, var_1_1=128, var_1_21=1, var_1_23=0, var_1_24=1, var_1_7=128, var_1_8=-10, var_1_9=0] [L20] COND FALSE !(!cond) [L129] RET assume_abort_if_not(var_1_23 <= 0) VAL [isInitial=1, last_1_var_1_12=8, last_1_var_1_17=1284/5, last_1_var_1_1=128, last_1_var_1_21=1, var_1_10=-1, var_1_11=8, var_1_12=8, var_1_13=1, var_1_15=1073741823, var_1_17=1284/5, var_1_19=16, var_1_1=128, var_1_21=1, var_1_23=0, var_1_24=1, var_1_7=128, var_1_8=-10, var_1_9=0] [L130] var_1_24 = __VERIFIER_nondet_uchar() [L131] CALL assume_abort_if_not(var_1_24 >= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=8, last_1_var_1_17=1284/5, last_1_var_1_1=128, last_1_var_1_21=1, var_1_10=-1, var_1_11=8, var_1_12=8, var_1_13=1, var_1_15=1073741823, var_1_17=1284/5, var_1_19=16, var_1_1=128, var_1_21=1, var_1_23=0, var_1_24=-255, var_1_7=128, var_1_8=-10, var_1_9=0] [L20] COND FALSE !(!cond) [L131] RET assume_abort_if_not(var_1_24 >= 1) VAL [isInitial=1, last_1_var_1_12=8, last_1_var_1_17=1284/5, last_1_var_1_1=128, last_1_var_1_21=1, var_1_10=-1, var_1_11=8, var_1_12=8, var_1_13=1, var_1_15=1073741823, var_1_17=1284/5, var_1_19=16, var_1_1=128, var_1_21=1, var_1_23=0, var_1_24=-255, var_1_7=128, var_1_8=-10, var_1_9=0] [L132] CALL assume_abort_if_not(var_1_24 <= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=8, last_1_var_1_17=1284/5, last_1_var_1_1=128, last_1_var_1_21=1, var_1_10=-1, var_1_11=8, var_1_12=8, var_1_13=1, var_1_15=1073741823, var_1_17=1284/5, var_1_19=16, var_1_1=128, var_1_21=1, var_1_23=0, var_1_24=-255, var_1_7=128, var_1_8=-10, var_1_9=0] [L20] COND FALSE !(!cond) [L132] RET assume_abort_if_not(var_1_24 <= 1) VAL [isInitial=1, last_1_var_1_12=8, last_1_var_1_17=1284/5, last_1_var_1_1=128, last_1_var_1_21=1, var_1_10=-1, var_1_11=8, var_1_12=8, var_1_13=1, var_1_15=1073741823, var_1_17=1284/5, var_1_19=16, var_1_1=128, var_1_21=1, var_1_23=0, var_1_24=-255, var_1_7=128, var_1_8=-10, var_1_9=0] [L149] RET updateVariables() [L150] CALL step() [L47] unsigned char stepLocal_3 = ((((var_1_4) > (last_1_var_1_17)) ? (var_1_4) : (last_1_var_1_17))) > var_1_18; [L48] COND TRUE last_1_var_1_21 || stepLocal_3 [L49] COND FALSE !(var_1_18 > ((((last_1_var_1_17) < 0 ) ? -(last_1_var_1_17) : (last_1_var_1_17)))) [L52] var_1_19 = var_1_11 [L57] unsigned long int stepLocal_1 = last_1_var_1_12; [L58] unsigned long int stepLocal_0 = 32u; [L59] COND TRUE stepLocal_0 >= last_1_var_1_12 [L60] COND TRUE stepLocal_1 <= last_1_var_1_12 [L61] COND TRUE (var_1_4 - var_1_5) >= last_1_var_1_17 [L62] var_1_1 = var_1_7 [L68] COND FALSE !((((((~ var_1_1)) < (8)) ? ((~ var_1_1)) : (8))) > var_1_11) [L71] COND TRUE ! (var_1_17 > var_1_5) [L72] var_1_8 = (((((var_1_9) < (var_1_10)) ? (var_1_9) : (var_1_10))) - var_1_11) [L76] unsigned long int stepLocal_4 = var_1_19; [L77] COND TRUE (var_1_18 / ((((5.5) > (var_1_22)) ? (5.5) : (var_1_22)))) > 10.5 [L78] COND TRUE \read(var_1_13) [L79] COND FALSE !(var_1_1 < stepLocal_4) [L82] var_1_21 = var_1_24 [L90] unsigned char stepLocal_2 = var_1_21; [L91] COND TRUE var_1_21 && stepLocal_2 [L92] var_1_12 = var_1_11 [L150] RET step() [L151] CALL, EXPR property() [L141-L142] return ((((((32u >= last_1_var_1_12) ? ((last_1_var_1_12 <= last_1_var_1_12) ? (((var_1_4 - var_1_5) >= last_1_var_1_17) ? (var_1_1 == ((unsigned char) var_1_7)) : 1) : 1) : (var_1_1 == ((unsigned char) var_1_7))) && ((! (var_1_17 > var_1_5)) ? (var_1_8 == ((signed char) (((((var_1_9) < (var_1_10)) ? (var_1_9) : (var_1_10))) - var_1_11))) : (var_1_8 == ((signed char) -4)))) && ((var_1_21 && var_1_21) ? (var_1_12 == ((unsigned long int) var_1_11)) : (var_1_21 ? (var_1_12 == ((unsigned long int) (((((var_1_19) > ((var_1_11 + var_1_7))) ? (var_1_19) : ((var_1_11 + var_1_7)))) + (var_1_15 - var_1_1)))) : 1))) && (((((((~ var_1_1)) < (8)) ? ((~ var_1_1)) : (8))) > var_1_11) ? (var_1_17 == ((double) var_1_18)) : 1)) && ((last_1_var_1_21 || (((((var_1_4) > (last_1_var_1_17)) ? (var_1_4) : (last_1_var_1_17))) > var_1_18)) ? ((var_1_18 > ((((last_1_var_1_17) < 0 ) ? -(last_1_var_1_17) : (last_1_var_1_17)))) ? (var_1_19 == ((unsigned long int) last_1_var_1_1)) : (var_1_19 == ((unsigned long int) var_1_11))) : (var_1_19 == ((unsigned long int) last_1_var_1_1)))) && (((var_1_18 / ((((5.5) > (var_1_22)) ? (5.5) : (var_1_22)))) > 10.5) ? (var_1_13 ? ((var_1_1 < var_1_19) ? (var_1_21 == ((unsigned char) (! var_1_23))) : (var_1_21 == ((unsigned char) var_1_24))) : (var_1_21 == ((unsigned char) var_1_23))) : (var_1_21 == ((unsigned char) var_1_23))) ; [L151] RET, EXPR property() [L151] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [isInitial=1, last_1_var_1_12=8, last_1_var_1_17=1284/5, last_1_var_1_1=128, last_1_var_1_21=1, var_1_10=-1, var_1_11=8, var_1_12=8, var_1_13=1, var_1_15=1073741823, var_1_17=1284/5, var_1_18=1284/5, var_1_19=8, var_1_1=128, var_1_21=-255, var_1_23=0, var_1_24=-255, var_1_7=128, var_1_8=-9, var_1_9=0] [L19] reach_error() VAL [isInitial=1, last_1_var_1_12=8, last_1_var_1_17=1284/5, last_1_var_1_1=128, last_1_var_1_21=1, var_1_10=-1, var_1_11=8, var_1_12=8, var_1_13=1, var_1_15=1073741823, var_1_17=1284/5, var_1_18=1284/5, var_1_19=8, var_1_1=128, var_1_21=-255, var_1_23=0, var_1_24=-255, var_1_7=128, var_1_8=-9, var_1_9=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 42 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.2s, OverallIterations: 1, TraceHistogramMax: 21, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=42occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 79 NumberOfCodeBlocks, 79 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-11-13 23:40:19,919 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99d90a13-cf44-4a4e-ac7a-2d893361ab5b/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99d90a13-cf44-4a4e-ac7a-2d893361ab5b/bin/utaipan-verify-sOmjnqqW8E/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99d90a13-cf44-4a4e-ac7a-2d893361ab5b/bin/utaipan-verify-sOmjnqqW8E/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99d90a13-cf44-4a4e-ac7a-2d893361ab5b/bin/utaipan-verify-sOmjnqqW8E/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99d90a13-cf44-4a4e-ac7a-2d893361ab5b/bin/utaipan-verify-sOmjnqqW8E/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_normal_file-51.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99d90a13-cf44-4a4e-ac7a-2d893361ab5b/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99d90a13-cf44-4a4e-ac7a-2d893361ab5b/bin/utaipan-verify-sOmjnqqW8E --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 4703bfd85786444b7063ad726d04e3dbfe77bfd14c478aa800342006bdde0646 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 23:40:23,464 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 23:40:23,629 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99d90a13-cf44-4a4e-ac7a-2d893361ab5b/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2024-11-13 23:40:23,643 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-13 23:40:23,643 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-13 23:40:23,676 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 23:40:23,677 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-13 23:40:23,677 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-13 23:40:23,677 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-13 23:40:23,678 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-13 23:40:23,678 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-13 23:40:23,678 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-13 23:40:23,678 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-13 23:40:23,678 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-13 23:40:23,679 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-13 23:40:23,679 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-13 23:40:23,679 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 23:40:23,680 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-13 23:40:23,680 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-13 23:40:23,680 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-13 23:40:23,680 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 23:40:23,680 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-13 23:40:23,681 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-13 23:40:23,681 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-13 23:40:23,681 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-13 23:40:23,681 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-13 23:40:23,681 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 23:40:23,681 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-13 23:40:23,682 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-13 23:40:23,682 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-13 23:40:23,682 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 23:40:23,682 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 23:40:23,682 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-13 23:40:23,682 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-13 23:40:23,683 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-13 23:40:23,683 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-13 23:40:23,683 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 23:40:23,683 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-13 23:40:23,683 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-13 23:40:23,683 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2024-11-13 23:40:23,684 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-13 23:40:23,684 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-13 23:40:23,684 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-13 23:40:23,684 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_99d90a13-cf44-4a4e-ac7a-2d893361ab5b/bin/utaipan-verify-sOmjnqqW8E 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 -> Taipan 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 -> 4703bfd85786444b7063ad726d04e3dbfe77bfd14c478aa800342006bdde0646 [2024-11-13 23:40:24,112 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 23:40:24,128 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 23:40:24,133 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 23:40:24,135 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 23:40:24,136 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 23:40:24,137 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99d90a13-cf44-4a4e-ac7a-2d893361ab5b/bin/utaipan-verify-sOmjnqqW8E/../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_normal_file-51.i Unable to find full path for "g++" [2024-11-13 23:40:26,747 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 23:40:27,107 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 23:40:27,108 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99d90a13-cf44-4a4e-ac7a-2d893361ab5b/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_normal_file-51.i [2024-11-13 23:40:27,120 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99d90a13-cf44-4a4e-ac7a-2d893361ab5b/bin/utaipan-verify-sOmjnqqW8E/data/35f6c3e2a/f540ee41e65a45809b5d7877080406bc/FLAG4ab38748f [2024-11-13 23:40:27,336 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99d90a13-cf44-4a4e-ac7a-2d893361ab5b/bin/utaipan-verify-sOmjnqqW8E/data/35f6c3e2a/f540ee41e65a45809b5d7877080406bc [2024-11-13 23:40:27,338 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 23:40:27,340 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 23:40:27,342 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 23:40:27,342 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 23:40:27,347 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 23:40:27,348 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 11:40:27" (1/1) ... [2024-11-13 23:40:27,349 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@10f5b6ea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:40:27, skipping insertion in model container [2024-11-13 23:40:27,349 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 11:40:27" (1/1) ... [2024-11-13 23:40:27,378 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 23:40:27,576 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_99d90a13-cf44-4a4e-ac7a-2d893361ab5b/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_normal_file-51.i[913,926] [2024-11-13 23:40:27,654 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 23:40:27,674 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 23:40:27,689 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_99d90a13-cf44-4a4e-ac7a-2d893361ab5b/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_normal_file-51.i[913,926] [2024-11-13 23:40:27,732 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 23:40:27,756 INFO L204 MainTranslator]: Completed translation [2024-11-13 23:40:27,756 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:40:27 WrapperNode [2024-11-13 23:40:27,757 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 23:40:27,758 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 23:40:27,758 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 23:40:27,758 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 23:40:27,767 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:40:27" (1/1) ... [2024-11-13 23:40:27,792 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:40:27" (1/1) ... [2024-11-13 23:40:27,845 INFO L138 Inliner]: procedures = 27, calls = 34, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 147 [2024-11-13 23:40:27,846 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 23:40:27,847 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 23:40:27,847 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 23:40:27,847 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 23:40:27,858 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:40:27" (1/1) ... [2024-11-13 23:40:27,859 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:40:27" (1/1) ... [2024-11-13 23:40:27,868 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:40:27" (1/1) ... [2024-11-13 23:40:27,868 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:40:27" (1/1) ... [2024-11-13 23:40:27,889 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:40:27" (1/1) ... [2024-11-13 23:40:27,897 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:40:27" (1/1) ... [2024-11-13 23:40:27,904 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:40:27" (1/1) ... [2024-11-13 23:40:27,909 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:40:27" (1/1) ... [2024-11-13 23:40:27,916 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 23:40:27,917 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 23:40:27,921 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 23:40:27,922 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 23:40:27,923 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:40:27" (1/1) ... [2024-11-13 23:40:27,939 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-13 23:40:27,968 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99d90a13-cf44-4a4e-ac7a-2d893361ab5b/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-13 23:40:27,986 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99d90a13-cf44-4a4e-ac7a-2d893361ab5b/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-13 23:40:27,997 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99d90a13-cf44-4a4e-ac7a-2d893361ab5b/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-13 23:40:28,037 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-13 23:40:28,037 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-11-13 23:40:28,037 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-13 23:40:28,038 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-13 23:40:28,038 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 23:40:28,038 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 23:40:28,219 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 23:40:28,222 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 23:40:35,240 INFO L? ?]: Removed 18 outVars from TransFormulas that were not future-live. [2024-11-13 23:40:35,240 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 23:40:35,260 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 23:40:35,261 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-13 23:40:35,262 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 11:40:35 BoogieIcfgContainer [2024-11-13 23:40:35,262 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 23:40:35,267 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-13 23:40:35,267 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-13 23:40:35,274 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-13 23:40:35,274 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 11:40:27" (1/3) ... [2024-11-13 23:40:35,275 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b04fbeb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 11:40:35, skipping insertion in model container [2024-11-13 23:40:35,276 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:40:27" (2/3) ... [2024-11-13 23:40:35,277 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b04fbeb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 11:40:35, skipping insertion in model container [2024-11-13 23:40:35,278 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 11:40:35" (3/3) ... [2024-11-13 23:40:35,280 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodesize_normal_file-51.i [2024-11-13 23:40:35,298 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-13 23:40:35,299 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_fillercode_fillercodesize_normal_file-51.i that has 2 procedures, 67 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-13 23:40:35,376 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-13 23:40:35,398 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@5ad6721f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-13 23:40:35,399 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-13 23:40:35,406 INFO L276 IsEmpty]: Start isEmpty. Operand has 67 states, 43 states have (on average 1.3953488372093024) internal successors, (60), 44 states have internal predecessors, (60), 21 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) [2024-11-13 23:40:35,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2024-11-13 23:40:35,432 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 23:40:35,433 INFO L215 NwaCegarLoop]: trace histogram [21, 21, 21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 23:40:35,435 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 23:40:35,441 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 23:40:35,443 INFO L85 PathProgramCache]: Analyzing trace with hash -2033349918, now seen corresponding path program 1 times [2024-11-13 23:40:35,456 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-13 23:40:35,456 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1373989624] [2024-11-13 23:40:35,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:40:35,457 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 23:40:35,457 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99d90a13-cf44-4a4e-ac7a-2d893361ab5b/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-13 23:40:35,460 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99d90a13-cf44-4a4e-ac7a-2d893361ab5b/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-13 23:40:35,463 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99d90a13-cf44-4a4e-ac7a-2d893361ab5b/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2024-11-13 23:40:36,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:40:36,797 INFO L255 TraceCheckSpWp]: Trace formula consists of 226 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-13 23:40:36,827 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 23:40:36,883 INFO L134 CoverageAnalysis]: Checked inductivity of 840 backedges. 340 proven. 0 refuted. 0 times theorem prover too weak. 500 trivial. 0 not checked. [2024-11-13 23:40:36,883 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 23:40:36,884 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-13 23:40:36,885 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1373989624] [2024-11-13 23:40:36,885 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1373989624] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 23:40:36,885 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 23:40:36,886 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 23:40:36,893 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [294528488] [2024-11-13 23:40:36,894 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 23:40:36,900 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-13 23:40:36,901 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-13 23:40:36,924 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-13 23:40:36,925 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-13 23:40:36,927 INFO L87 Difference]: Start difference. First operand has 67 states, 43 states have (on average 1.3953488372093024) internal successors, (60), 44 states have internal predecessors, (60), 21 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) Second operand has 2 states, 2 states have (on average 18.5) internal successors, (37), 2 states have internal predecessors, (37), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2024-11-13 23:40:36,964 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 23:40:36,965 INFO L93 Difference]: Finished difference Result 127 states and 219 transitions. [2024-11-13 23:40:36,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-13 23:40:36,967 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 18.5) internal successors, (37), 2 states have internal predecessors, (37), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 135 [2024-11-13 23:40:36,968 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 23:40:36,976 INFO L225 Difference]: With dead ends: 127 [2024-11-13 23:40:36,976 INFO L226 Difference]: Without dead ends: 63 [2024-11-13 23:40:36,981 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 134 GetRequests, 134 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-13 23:40:36,985 INFO L432 NwaCegarLoop]: 95 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 95 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-13 23:40:36,986 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 95 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-13 23:40:37,004 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2024-11-13 23:40:37,035 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 63. [2024-11-13 23:40:37,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63 states, 40 states have (on average 1.325) internal successors, (53), 40 states have internal predecessors, (53), 21 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) [2024-11-13 23:40:37,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 95 transitions. [2024-11-13 23:40:37,044 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 95 transitions. Word has length 135 [2024-11-13 23:40:37,045 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 23:40:37,045 INFO L471 AbstractCegarLoop]: Abstraction has 63 states and 95 transitions. [2024-11-13 23:40:37,046 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 18.5) internal successors, (37), 2 states have internal predecessors, (37), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2024-11-13 23:40:37,046 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 95 transitions. [2024-11-13 23:40:37,049 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2024-11-13 23:40:37,050 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 23:40:37,050 INFO L215 NwaCegarLoop]: trace histogram [21, 21, 21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 23:40:37,067 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99d90a13-cf44-4a4e-ac7a-2d893361ab5b/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2024-11-13 23:40:37,251 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99d90a13-cf44-4a4e-ac7a-2d893361ab5b/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 23:40:37,251 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 23:40:37,252 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 23:40:37,252 INFO L85 PathProgramCache]: Analyzing trace with hash -1732673956, now seen corresponding path program 1 times [2024-11-13 23:40:37,253 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-13 23:40:37,253 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [754894355] [2024-11-13 23:40:37,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:40:37,254 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 23:40:37,254 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99d90a13-cf44-4a4e-ac7a-2d893361ab5b/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-13 23:40:37,258 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99d90a13-cf44-4a4e-ac7a-2d893361ab5b/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-13 23:40:37,260 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99d90a13-cf44-4a4e-ac7a-2d893361ab5b/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2024-11-13 23:40:38,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:40:38,413 INFO L255 TraceCheckSpWp]: Trace formula consists of 226 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-13 23:40:38,419 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 23:40:40,767 INFO L134 CoverageAnalysis]: Checked inductivity of 840 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 840 trivial. 0 not checked. [2024-11-13 23:40:40,768 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 23:40:40,768 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-13 23:40:40,768 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [754894355] [2024-11-13 23:40:40,768 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [754894355] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 23:40:40,768 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 23:40:40,769 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 23:40:40,769 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1747523928] [2024-11-13 23:40:40,769 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 23:40:40,771 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 23:40:40,771 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-13 23:40:40,772 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 23:40:40,772 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-13 23:40:40,773 INFO L87 Difference]: Start difference. First operand 63 states and 95 transitions. Second operand has 4 states, 4 states have (on average 8.25) internal successors, (33), 3 states have internal predecessors, (33), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) [2024-11-13 23:40:43,375 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.28s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-13 23:40:45,731 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.22s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-13 23:40:47,735 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-13 23:40:50,122 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.20s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-13 23:40:52,417 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.29s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-13 23:40:54,420 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-13 23:40:54,421 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 23:40:54,421 INFO L93 Difference]: Finished difference Result 184 states and 280 transitions. [2024-11-13 23:40:54,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 23:40:54,500 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.25) internal successors, (33), 3 states have internal predecessors, (33), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) Word has length 135 [2024-11-13 23:40:54,501 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 23:40:54,503 INFO L225 Difference]: With dead ends: 184 [2024-11-13 23:40:54,503 INFO L226 Difference]: Without dead ends: 124 [2024-11-13 23:40:54,504 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 135 GetRequests, 132 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-13 23:40:54,505 INFO L432 NwaCegarLoop]: 93 mSDtfsCounter, 68 mSDsluCounter, 169 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 43 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 262 SdHoareTripleChecker+Invalid, 63 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.5s IncrementalHoareTripleChecker+Time [2024-11-13 23:40:54,506 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [68 Valid, 262 Invalid, 63 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 14 Invalid, 6 Unknown, 0 Unchecked, 13.5s Time] [2024-11-13 23:40:54,507 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124 states. [2024-11-13 23:40:54,547 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124 to 103. [2024-11-13 23:40:54,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 103 states, 58 states have (on average 1.2241379310344827) internal successors, (71), 58 states have internal predecessors, (71), 42 states have call successors, (42), 2 states have call predecessors, (42), 2 states have return successors, (42), 42 states have call predecessors, (42), 42 states have call successors, (42) [2024-11-13 23:40:54,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 155 transitions. [2024-11-13 23:40:54,555 INFO L78 Accepts]: Start accepts. Automaton has 103 states and 155 transitions. Word has length 135 [2024-11-13 23:40:54,557 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 23:40:54,557 INFO L471 AbstractCegarLoop]: Abstraction has 103 states and 155 transitions. [2024-11-13 23:40:54,558 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.25) internal successors, (33), 3 states have internal predecessors, (33), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) [2024-11-13 23:40:54,558 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 155 transitions. [2024-11-13 23:40:54,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2024-11-13 23:40:54,561 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 23:40:54,561 INFO L215 NwaCegarLoop]: trace histogram [21, 21, 21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 23:40:54,577 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99d90a13-cf44-4a4e-ac7a-2d893361ab5b/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2024-11-13 23:40:54,762 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99d90a13-cf44-4a4e-ac7a-2d893361ab5b/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 23:40:54,762 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 23:40:54,763 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 23:40:54,763 INFO L85 PathProgramCache]: Analyzing trace with hash -1284839648, now seen corresponding path program 1 times [2024-11-13 23:40:54,763 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-13 23:40:54,763 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1747649362] [2024-11-13 23:40:54,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:40:54,764 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 23:40:54,764 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99d90a13-cf44-4a4e-ac7a-2d893361ab5b/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-13 23:40:54,766 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99d90a13-cf44-4a4e-ac7a-2d893361ab5b/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-13 23:40:54,769 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99d90a13-cf44-4a4e-ac7a-2d893361ab5b/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2024-11-13 23:40:55,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:40:55,915 INFO L255 TraceCheckSpWp]: Trace formula consists of 226 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-13 23:40:55,920 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 23:40:58,703 INFO L134 CoverageAnalysis]: Checked inductivity of 840 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 840 trivial. 0 not checked. [2024-11-13 23:40:58,704 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 23:40:58,704 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-13 23:40:58,704 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1747649362] [2024-11-13 23:40:58,704 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1747649362] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 23:40:58,705 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 23:40:58,705 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-13 23:40:58,705 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1820854240] [2024-11-13 23:40:58,705 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 23:40:58,705 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-13 23:40:58,706 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-13 23:40:58,706 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-13 23:40:58,707 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-13 23:40:58,707 INFO L87 Difference]: Start difference. First operand 103 states and 155 transitions. Second operand has 5 states, 5 states have (on average 6.8) internal successors, (34), 4 states have internal predecessors, (34), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) [2024-11-13 23:41:01,947 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.23s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-13 23:41:03,956 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-13 23:41:05,981 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-13 23:41:08,303 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.22s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-13 23:41:10,309 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-13 23:41:12,740 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.23s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-13 23:41:14,744 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-13 23:41:16,747 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-13 23:41:16,749 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 23:41:16,749 INFO L93 Difference]: Finished difference Result 230 states and 346 transitions. [2024-11-13 23:41:16,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-13 23:41:16,877 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.8) internal successors, (34), 4 states have internal predecessors, (34), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) Word has length 136 [2024-11-13 23:41:16,878 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 23:41:16,883 INFO L225 Difference]: With dead ends: 230 [2024-11-13 23:41:16,883 INFO L226 Difference]: Without dead ends: 170 [2024-11-13 23:41:16,884 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 137 GetRequests, 132 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2024-11-13 23:41:16,885 INFO L432 NwaCegarLoop]: 96 mSDtfsCounter, 78 mSDsluCounter, 223 mSDsCounter, 0 mSdLazyCounter, 64 mSolverCounterSat, 43 mSolverCounterUnsat, 8 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 319 SdHoareTripleChecker+Invalid, 115 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 64 IncrementalHoareTripleChecker+Invalid, 8 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.8s IncrementalHoareTripleChecker+Time [2024-11-13 23:41:16,886 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [78 Valid, 319 Invalid, 115 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 64 Invalid, 8 Unknown, 0 Unchecked, 17.8s Time] [2024-11-13 23:41:16,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 170 states. [2024-11-13 23:41:16,946 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 170 to 161. [2024-11-13 23:41:16,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 161 states, 94 states have (on average 1.2659574468085106) internal successors, (119), 94 states have internal predecessors, (119), 63 states have call successors, (63), 3 states have call predecessors, (63), 3 states have return successors, (63), 63 states have call predecessors, (63), 63 states have call successors, (63) [2024-11-13 23:41:16,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 161 states to 161 states and 245 transitions. [2024-11-13 23:41:16,957 INFO L78 Accepts]: Start accepts. Automaton has 161 states and 245 transitions. Word has length 136 [2024-11-13 23:41:16,958 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 23:41:16,958 INFO L471 AbstractCegarLoop]: Abstraction has 161 states and 245 transitions. [2024-11-13 23:41:16,958 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.8) internal successors, (34), 4 states have internal predecessors, (34), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) [2024-11-13 23:41:16,959 INFO L276 IsEmpty]: Start isEmpty. Operand 161 states and 245 transitions. [2024-11-13 23:41:16,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2024-11-13 23:41:16,963 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 23:41:16,965 INFO L215 NwaCegarLoop]: trace histogram [21, 21, 21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 23:41:16,980 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99d90a13-cf44-4a4e-ac7a-2d893361ab5b/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Ended with exit code 0 [2024-11-13 23:41:17,165 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99d90a13-cf44-4a4e-ac7a-2d893361ab5b/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 23:41:17,166 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 23:41:17,166 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 23:41:17,166 INFO L85 PathProgramCache]: Analyzing trace with hash -607065803, now seen corresponding path program 1 times [2024-11-13 23:41:17,167 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-13 23:41:17,167 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [9293433] [2024-11-13 23:41:17,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:41:17,167 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 23:41:17,168 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99d90a13-cf44-4a4e-ac7a-2d893361ab5b/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-13 23:41:17,170 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99d90a13-cf44-4a4e-ac7a-2d893361ab5b/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-13 23:41:17,172 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99d90a13-cf44-4a4e-ac7a-2d893361ab5b/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2024-11-13 23:41:18,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:41:18,373 INFO L255 TraceCheckSpWp]: Trace formula consists of 226 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-13 23:41:18,377 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 23:41:18,469 INFO L134 CoverageAnalysis]: Checked inductivity of 840 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 840 trivial. 0 not checked. [2024-11-13 23:41:18,471 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 23:41:18,471 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-13 23:41:18,471 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [9293433] [2024-11-13 23:41:18,472 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [9293433] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 23:41:18,472 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 23:41:18,472 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 23:41:18,472 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [211929433] [2024-11-13 23:41:18,472 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 23:41:18,473 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 23:41:18,473 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-13 23:41:18,474 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 23:41:18,476 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 23:41:18,476 INFO L87 Difference]: Start difference. First operand 161 states and 245 transitions. Second operand has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) [2024-11-13 23:41:20,811 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.21s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-13 23:41:23,173 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.23s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-13 23:41:25,183 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-13 23:41:25,183 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 23:41:25,184 INFO L93 Difference]: Finished difference Result 289 states and 444 transitions. [2024-11-13 23:41:25,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 23:41:25,288 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) Word has length 137 [2024-11-13 23:41:25,289 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 23:41:25,293 INFO L225 Difference]: With dead ends: 289 [2024-11-13 23:41:25,294 INFO L226 Difference]: Without dead ends: 171 [2024-11-13 23:41:25,295 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 136 GetRequests, 135 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 23:41:25,297 INFO L432 NwaCegarLoop]: 107 mSDtfsCounter, 17 mSDsluCounter, 86 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 193 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.7s IncrementalHoareTripleChecker+Time [2024-11-13 23:41:25,298 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 193 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 3 Unknown, 0 Unchecked, 6.7s Time] [2024-11-13 23:41:25,300 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 171 states. [2024-11-13 23:41:25,346 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 171 to 161. [2024-11-13 23:41:25,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 161 states, 94 states have (on average 1.2446808510638299) internal successors, (117), 94 states have internal predecessors, (117), 63 states have call successors, (63), 3 states have call predecessors, (63), 3 states have return successors, (63), 63 states have call predecessors, (63), 63 states have call successors, (63) [2024-11-13 23:41:25,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 161 states to 161 states and 243 transitions. [2024-11-13 23:41:25,352 INFO L78 Accepts]: Start accepts. Automaton has 161 states and 243 transitions. Word has length 137 [2024-11-13 23:41:25,353 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 23:41:25,353 INFO L471 AbstractCegarLoop]: Abstraction has 161 states and 243 transitions. [2024-11-13 23:41:25,353 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) [2024-11-13 23:41:25,354 INFO L276 IsEmpty]: Start isEmpty. Operand 161 states and 243 transitions. [2024-11-13 23:41:25,357 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2024-11-13 23:41:25,357 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 23:41:25,357 INFO L215 NwaCegarLoop]: trace histogram [21, 21, 21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 23:41:25,381 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99d90a13-cf44-4a4e-ac7a-2d893361ab5b/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Ended with exit code 0 [2024-11-13 23:41:25,558 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99d90a13-cf44-4a4e-ac7a-2d893361ab5b/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 23:41:25,559 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 23:41:25,559 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 23:41:25,559 INFO L85 PathProgramCache]: Analyzing trace with hash 98405429, now seen corresponding path program 1 times [2024-11-13 23:41:25,560 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-13 23:41:25,560 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2103395553] [2024-11-13 23:41:25,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:41:25,561 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 23:41:25,561 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99d90a13-cf44-4a4e-ac7a-2d893361ab5b/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-13 23:41:25,564 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99d90a13-cf44-4a4e-ac7a-2d893361ab5b/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-13 23:41:25,567 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99d90a13-cf44-4a4e-ac7a-2d893361ab5b/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2024-11-13 23:41:27,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:41:27,058 INFO L255 TraceCheckSpWp]: Trace formula consists of 228 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-13 23:41:27,061 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 23:41:29,217 INFO L134 CoverageAnalysis]: Checked inductivity of 840 backedges. 420 proven. 36 refuted. 0 times theorem prover too weak. 384 trivial. 0 not checked. [2024-11-13 23:41:29,217 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 23:41:29,806 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-13 23:41:29,807 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2103395553] [2024-11-13 23:41:29,807 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2103395553] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 23:41:29,807 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1486687896] [2024-11-13 23:41:29,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:41:29,808 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-13 23:41:29,808 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99d90a13-cf44-4a4e-ac7a-2d893361ab5b/bin/utaipan-verify-sOmjnqqW8E/cvc4 [2024-11-13 23:41:29,813 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99d90a13-cf44-4a4e-ac7a-2d893361ab5b/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-13 23:41:29,815 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99d90a13-cf44-4a4e-ac7a-2d893361ab5b/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (7)] Waiting until timeout for monitored process [2024-11-13 23:41:32,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:41:32,830 INFO L255 TraceCheckSpWp]: Trace formula consists of 228 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-13 23:41:32,845 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 23:41:34,725 INFO L134 CoverageAnalysis]: Checked inductivity of 840 backedges. 420 proven. 36 refuted. 0 times theorem prover too weak. 384 trivial. 0 not checked. [2024-11-13 23:41:34,726 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 23:41:35,024 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1486687896] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 23:41:35,024 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1175814229] [2024-11-13 23:41:35,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:41:35,025 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 23:41:35,026 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99d90a13-cf44-4a4e-ac7a-2d893361ab5b/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-13 23:41:35,030 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99d90a13-cf44-4a4e-ac7a-2d893361ab5b/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 23:41:35,033 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99d90a13-cf44-4a4e-ac7a-2d893361ab5b/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-13 23:41:35,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:41:35,888 INFO L255 TraceCheckSpWp]: Trace formula consists of 228 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-13 23:41:35,892 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 23:41:37,615 INFO L134 CoverageAnalysis]: Checked inductivity of 840 backedges. 420 proven. 36 refuted. 0 times theorem prover too weak. 384 trivial. 0 not checked. [2024-11-13 23:41:37,616 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 23:41:37,961 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1175814229] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 23:41:37,961 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-13 23:41:37,962 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 5 [2024-11-13 23:41:37,962 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1381918391] [2024-11-13 23:41:37,962 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-13 23:41:37,963 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-13 23:41:37,963 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-13 23:41:37,964 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-13 23:41:37,964 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-13 23:41:37,965 INFO L87 Difference]: Start difference. First operand 161 states and 243 transitions. Second operand has 5 states, 5 states have (on average 8.4) internal successors, (42), 5 states have internal predecessors, (42), 2 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2024-11-13 23:41:42,451 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.27s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-13 23:41:44,454 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-13 23:41:46,457 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-13 23:41:46,620 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 23:41:46,620 INFO L93 Difference]: Finished difference Result 297 states and 438 transitions. [2024-11-13 23:41:46,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-13 23:41:46,625 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 5 states have internal predecessors, (42), 2 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 138 [2024-11-13 23:41:46,626 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 23:41:46,633 INFO L225 Difference]: With dead ends: 297 [2024-11-13 23:41:46,633 INFO L226 Difference]: Without dead ends: 179 [2024-11-13 23:41:46,634 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 469 GetRequests, 462 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2024-11-13 23:41:46,637 INFO L432 NwaCegarLoop]: 65 mSDtfsCounter, 42 mSDsluCounter, 87 mSDsCounter, 0 mSdLazyCounter, 126 mSolverCounterSat, 4 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 152 SdHoareTripleChecker+Invalid, 133 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 126 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.3s IncrementalHoareTripleChecker+Time [2024-11-13 23:41:46,640 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [50 Valid, 152 Invalid, 133 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 126 Invalid, 3 Unknown, 0 Unchecked, 8.3s Time] [2024-11-13 23:41:46,641 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 179 states. [2024-11-13 23:41:46,695 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 179 to 173. [2024-11-13 23:41:46,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 173 states, 103 states have (on average 1.203883495145631) internal successors, (124), 103 states have internal predecessors, (124), 63 states have call successors, (63), 6 states have call predecessors, (63), 6 states have return successors, (63), 63 states have call predecessors, (63), 63 states have call successors, (63) [2024-11-13 23:41:46,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 173 states to 173 states and 250 transitions. [2024-11-13 23:41:46,703 INFO L78 Accepts]: Start accepts. Automaton has 173 states and 250 transitions. Word has length 138 [2024-11-13 23:41:46,704 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 23:41:46,704 INFO L471 AbstractCegarLoop]: Abstraction has 173 states and 250 transitions. [2024-11-13 23:41:46,704 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 5 states have internal predecessors, (42), 2 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2024-11-13 23:41:46,704 INFO L276 IsEmpty]: Start isEmpty. Operand 173 states and 250 transitions. [2024-11-13 23:41:46,707 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2024-11-13 23:41:46,707 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 23:41:46,707 INFO L215 NwaCegarLoop]: trace histogram [21, 21, 21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 23:41:46,730 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99d90a13-cf44-4a4e-ac7a-2d893361ab5b/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (7)] Forceful destruction successful, exit code 0 [2024-11-13 23:41:46,971 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99d90a13-cf44-4a4e-ac7a-2d893361ab5b/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-13 23:41:47,131 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99d90a13-cf44-4a4e-ac7a-2d893361ab5b/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Ended with exit code 0 [2024-11-13 23:41:47,308 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99d90a13-cf44-4a4e-ac7a-2d893361ab5b/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99d90a13-cf44-4a4e-ac7a-2d893361ab5b/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99d90a13-cf44-4a4e-ac7a-2d893361ab5b/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 23:41:47,309 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 23:41:47,310 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 23:41:47,310 INFO L85 PathProgramCache]: Analyzing trace with hash -294621581, now seen corresponding path program 1 times [2024-11-13 23:41:47,310 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-13 23:41:47,310 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2092344614] [2024-11-13 23:41:47,311 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:41:47,311 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 23:41:47,311 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99d90a13-cf44-4a4e-ac7a-2d893361ab5b/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-13 23:41:47,313 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99d90a13-cf44-4a4e-ac7a-2d893361ab5b/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-13 23:41:47,316 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99d90a13-cf44-4a4e-ac7a-2d893361ab5b/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2024-11-13 23:41:48,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:41:48,654 INFO L255 TraceCheckSpWp]: Trace formula consists of 227 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-13 23:41:48,657 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 23:41:49,727 INFO L134 CoverageAnalysis]: Checked inductivity of 840 backedges. 200 proven. 6 refuted. 0 times theorem prover too weak. 634 trivial. 0 not checked. [2024-11-13 23:41:49,727 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 23:41:51,799 INFO L134 CoverageAnalysis]: Checked inductivity of 840 backedges. 54 proven. 6 refuted. 0 times theorem prover too weak. 780 trivial. 0 not checked. [2024-11-13 23:41:51,799 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-13 23:41:51,799 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2092344614] [2024-11-13 23:41:51,800 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2092344614] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 23:41:51,800 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1172117344] [2024-11-13 23:41:51,800 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:41:51,800 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-13 23:41:51,801 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99d90a13-cf44-4a4e-ac7a-2d893361ab5b/bin/utaipan-verify-sOmjnqqW8E/cvc4 [2024-11-13 23:41:51,804 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99d90a13-cf44-4a4e-ac7a-2d893361ab5b/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-13 23:41:51,811 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99d90a13-cf44-4a4e-ac7a-2d893361ab5b/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (10)] Waiting until timeout for monitored process [2024-11-13 23:41:54,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:41:54,840 INFO L255 TraceCheckSpWp]: Trace formula consists of 227 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-11-13 23:41:54,845 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 23:44:18,871 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse7 ((_ to_fp 11 53) c_currentRoundingMode (/ 11.0 2.0)))) (let ((.cse0 ((_ sign_extend 24) c_~var_1_11~0)) (.cse6 (fp.gt .cse7 c_~var_1_22~0)) (.cse5 ((_ to_fp 11 53) c_currentRoundingMode (/ 21.0 2.0)))) (and (not (bvsgt (bvnot ((_ zero_extend 24) c_~var_1_1~0)) .cse0)) (= c_~var_1_23~0 c_~var_1_21~0) (= c_~var_1_7~0 c_~var_1_1~0) (let ((.cse4 ((_ sign_extend 24) c_~var_1_9~0)) (.cse3 ((_ sign_extend 24) c_~var_1_10~0))) (let ((.cse2 (bvneg .cse0)) (.cse1 (bvslt .cse4 .cse3))) (or (and (not .cse1) (= ((_ extract 7 0) (bvadd .cse2 .cse3)) c_~var_1_8~0)) (and (= ((_ extract 7 0) (bvadd .cse4 .cse2)) c_~var_1_8~0) .cse1)))) (= (_ bv1 8) c_~last_1_var_1_21~0) (or (not (fp.gt (fp.div c_currentRoundingMode c_~var_1_18~0 c_~var_1_22~0) .cse5)) .cse6) (or (not .cse6) (not (fp.gt (fp.div c_currentRoundingMode c_~var_1_18~0 .cse7) .cse5))) (fp.geq (fp.sub c_currentRoundingMode c_~var_1_4~0 c_~var_1_5~0) c_~last_1_var_1_17~0) (= (_ bv8 32) c_~last_1_var_1_12~0) (not (fp.gt c_~var_1_17~0 c_~var_1_5~0)) (= c_~var_1_19~0 ((_ zero_extend 24) c_~last_1_var_1_1~0)) (let ((.cse8 (fp.lt c_~last_1_var_1_17~0 ((_ to_fp 11 53) c_currentRoundingMode (_ bv0 32))))) (or (and (fp.gt c_~var_1_18~0 (fp.neg c_~last_1_var_1_17~0)) .cse8) (and (not .cse8) (fp.gt c_~var_1_18~0 c_~last_1_var_1_17~0))))))) is different from false [2024-11-13 23:44:20,985 WARN L873 $PredicateComparison]: unable to prove that (let ((.cse7 ((_ to_fp 11 53) c_currentRoundingMode (/ 11.0 2.0)))) (let ((.cse0 ((_ sign_extend 24) c_~var_1_11~0)) (.cse6 (fp.gt .cse7 c_~var_1_22~0)) (.cse5 ((_ to_fp 11 53) c_currentRoundingMode (/ 21.0 2.0)))) (and (not (bvsgt (bvnot ((_ zero_extend 24) c_~var_1_1~0)) .cse0)) (= c_~var_1_23~0 c_~var_1_21~0) (= c_~var_1_7~0 c_~var_1_1~0) (let ((.cse4 ((_ sign_extend 24) c_~var_1_9~0)) (.cse3 ((_ sign_extend 24) c_~var_1_10~0))) (let ((.cse2 (bvneg .cse0)) (.cse1 (bvslt .cse4 .cse3))) (or (and (not .cse1) (= ((_ extract 7 0) (bvadd .cse2 .cse3)) c_~var_1_8~0)) (and (= ((_ extract 7 0) (bvadd .cse4 .cse2)) c_~var_1_8~0) .cse1)))) (= (_ bv1 8) c_~last_1_var_1_21~0) (or (not (fp.gt (fp.div c_currentRoundingMode c_~var_1_18~0 c_~var_1_22~0) .cse5)) .cse6) (or (not .cse6) (not (fp.gt (fp.div c_currentRoundingMode c_~var_1_18~0 .cse7) .cse5))) (fp.geq (fp.sub c_currentRoundingMode c_~var_1_4~0 c_~var_1_5~0) c_~last_1_var_1_17~0) (= (_ bv8 32) c_~last_1_var_1_12~0) (not (fp.gt c_~var_1_17~0 c_~var_1_5~0)) (= c_~var_1_19~0 ((_ zero_extend 24) c_~last_1_var_1_1~0)) (let ((.cse8 (fp.lt c_~last_1_var_1_17~0 ((_ to_fp 11 53) c_currentRoundingMode (_ bv0 32))))) (or (and (fp.gt c_~var_1_18~0 (fp.neg c_~last_1_var_1_17~0)) .cse8) (and (not .cse8) (fp.gt c_~var_1_18~0 c_~last_1_var_1_17~0))))))) is different from true [2024-11-13 23:47:27,088 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse7 ((_ to_fp 11 53) c_currentRoundingMode (/ 11.0 2.0)))) (let ((.cse0 ((_ sign_extend 24) c_~var_1_11~0)) (.cse6 (fp.gt .cse7 c_~var_1_22~0)) (.cse5 ((_ to_fp 11 53) c_currentRoundingMode (/ 21.0 2.0)))) (and (not (bvsgt (bvnot ((_ zero_extend 24) c_~var_1_1~0)) .cse0)) (= c_~var_1_23~0 c_~var_1_21~0) (= c_~var_1_7~0 c_~var_1_1~0) (let ((.cse4 ((_ sign_extend 24) c_~var_1_9~0)) (.cse3 ((_ sign_extend 24) c_~var_1_10~0))) (let ((.cse2 (bvneg .cse0)) (.cse1 (bvslt .cse4 .cse3))) (or (and (not .cse1) (= ((_ extract 7 0) (bvadd .cse2 .cse3)) c_~var_1_8~0)) (and (= ((_ extract 7 0) (bvadd .cse4 .cse2)) c_~var_1_8~0) .cse1)))) (= c_~var_1_12~0 .cse0) (= (_ bv1 8) c_~last_1_var_1_21~0) (or (not (fp.gt (fp.div c_currentRoundingMode c_~var_1_18~0 c_~var_1_22~0) .cse5)) .cse6) (not (= c_~var_1_21~0 (_ bv0 8))) (or (not .cse6) (not (fp.gt (fp.div c_currentRoundingMode c_~var_1_18~0 .cse7) .cse5))) (fp.geq (fp.sub c_currentRoundingMode c_~var_1_4~0 c_~var_1_5~0) c_~last_1_var_1_17~0) (= (_ bv8 32) c_~last_1_var_1_12~0) (not (fp.gt c_~var_1_17~0 c_~var_1_5~0)) (= c_~var_1_19~0 ((_ zero_extend 24) c_~last_1_var_1_1~0)) (let ((.cse8 (fp.lt c_~last_1_var_1_17~0 ((_ to_fp 11 53) c_currentRoundingMode (_ bv0 32))))) (or (and (fp.gt c_~var_1_18~0 (fp.neg c_~last_1_var_1_17~0)) .cse8) (and (not .cse8) (fp.gt c_~var_1_18~0 c_~last_1_var_1_17~0))))))) is different from false [2024-11-13 23:47:29,189 WARN L873 $PredicateComparison]: unable to prove that (let ((.cse7 ((_ to_fp 11 53) c_currentRoundingMode (/ 11.0 2.0)))) (let ((.cse0 ((_ sign_extend 24) c_~var_1_11~0)) (.cse6 (fp.gt .cse7 c_~var_1_22~0)) (.cse5 ((_ to_fp 11 53) c_currentRoundingMode (/ 21.0 2.0)))) (and (not (bvsgt (bvnot ((_ zero_extend 24) c_~var_1_1~0)) .cse0)) (= c_~var_1_23~0 c_~var_1_21~0) (= c_~var_1_7~0 c_~var_1_1~0) (let ((.cse4 ((_ sign_extend 24) c_~var_1_9~0)) (.cse3 ((_ sign_extend 24) c_~var_1_10~0))) (let ((.cse2 (bvneg .cse0)) (.cse1 (bvslt .cse4 .cse3))) (or (and (not .cse1) (= ((_ extract 7 0) (bvadd .cse2 .cse3)) c_~var_1_8~0)) (and (= ((_ extract 7 0) (bvadd .cse4 .cse2)) c_~var_1_8~0) .cse1)))) (= c_~var_1_12~0 .cse0) (= (_ bv1 8) c_~last_1_var_1_21~0) (or (not (fp.gt (fp.div c_currentRoundingMode c_~var_1_18~0 c_~var_1_22~0) .cse5)) .cse6) (not (= c_~var_1_21~0 (_ bv0 8))) (or (not .cse6) (not (fp.gt (fp.div c_currentRoundingMode c_~var_1_18~0 .cse7) .cse5))) (fp.geq (fp.sub c_currentRoundingMode c_~var_1_4~0 c_~var_1_5~0) c_~last_1_var_1_17~0) (= (_ bv8 32) c_~last_1_var_1_12~0) (not (fp.gt c_~var_1_17~0 c_~var_1_5~0)) (= c_~var_1_19~0 ((_ zero_extend 24) c_~last_1_var_1_1~0)) (let ((.cse8 (fp.lt c_~last_1_var_1_17~0 ((_ to_fp 11 53) c_currentRoundingMode (_ bv0 32))))) (or (and (fp.gt c_~var_1_18~0 (fp.neg c_~last_1_var_1_17~0)) .cse8) (and (not .cse8) (fp.gt c_~var_1_18~0 c_~last_1_var_1_17~0))))))) is different from true