./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-ap_file-87.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_a043486a-ed27-4616-b2a4-697377161fba/bin/utaipan-verify-sOmjnqqW8E/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a043486a-ed27-4616-b2a4-697377161fba/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_a043486a-ed27-4616-b2a4-697377161fba/bin/utaipan-verify-sOmjnqqW8E/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a043486a-ed27-4616-b2a4-697377161fba/bin/utaipan-verify-sOmjnqqW8E/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-ap_file-87.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a043486a-ed27-4616-b2a4-697377161fba/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_a043486a-ed27-4616-b2a4-697377161fba/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 e6926b4c4456cf40fd2f7cdafc9f778396b8eaa34456b24490dcf7ecaf227025 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-14 05:38:31,850 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-14 05:38:31,931 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a043486a-ed27-4616-b2a4-697377161fba/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-Reach-32bit-Taipan_Default.epf [2024-11-14 05:38:31,937 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-14 05:38:31,940 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-14 05:38:31,972 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-14 05:38:31,972 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-14 05:38:31,973 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-14 05:38:31,973 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-14 05:38:31,973 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-14 05:38:31,973 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-14 05:38:31,973 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-14 05:38:31,973 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-14 05:38:31,973 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-14 05:38:31,974 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-14 05:38:31,974 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-14 05:38:31,974 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-14 05:38:31,974 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-14 05:38:31,974 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-14 05:38:31,974 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-14 05:38:31,974 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-14 05:38:31,974 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-14 05:38:31,975 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-14 05:38:31,975 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-14 05:38:31,975 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-14 05:38:31,975 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-14 05:38:31,975 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-14 05:38:31,975 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-14 05:38:31,975 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-14 05:38:31,975 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-14 05:38:31,976 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-14 05:38:31,976 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-14 05:38:31,976 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-14 05:38:31,976 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-14 05:38:31,976 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-14 05:38:31,976 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-14 05:38:31,976 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-14 05:38:31,976 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-14 05:38:31,976 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 05:38:31,977 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-14 05:38:31,977 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-14 05:38:31,977 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-14 05:38:31,977 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-14 05:38:31,977 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-14 05:38:31,977 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-14 05:38:31,977 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-14 05:38:31,977 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-14 05:38:31,977 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_a043486a-ed27-4616-b2a4-697377161fba/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 -> e6926b4c4456cf40fd2f7cdafc9f778396b8eaa34456b24490dcf7ecaf227025 [2024-11-14 05:38:32,344 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-14 05:38:32,357 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-14 05:38:32,360 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-14 05:38:32,362 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-14 05:38:32,364 INFO L274 PluginConnector]: CDTParser initialized [2024-11-14 05:38:32,365 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a043486a-ed27-4616-b2a4-697377161fba/bin/utaipan-verify-sOmjnqqW8E/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-ap_file-87.i Unable to find full path for "g++" [2024-11-14 05:38:34,351 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-14 05:38:34,722 INFO L384 CDTParser]: Found 1 translation units. [2024-11-14 05:38:34,722 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a043486a-ed27-4616-b2a4-697377161fba/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-ap_file-87.i [2024-11-14 05:38:34,731 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a043486a-ed27-4616-b2a4-697377161fba/bin/utaipan-verify-sOmjnqqW8E/data/c10eaedd7/023f5ac010434799aa4503ec1b301add/FLAGe27040146 [2024-11-14 05:38:34,745 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a043486a-ed27-4616-b2a4-697377161fba/bin/utaipan-verify-sOmjnqqW8E/data/c10eaedd7/023f5ac010434799aa4503ec1b301add [2024-11-14 05:38:34,748 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-14 05:38:34,749 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-14 05:38:34,751 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-14 05:38:34,751 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-14 05:38:34,756 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-14 05:38:34,757 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 05:38:34" (1/1) ... [2024-11-14 05:38:34,758 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@429c7c3f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:38:34, skipping insertion in model container [2024-11-14 05:38:34,759 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 05:38:34" (1/1) ... [2024-11-14 05:38:34,785 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-14 05:38:34,950 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_a043486a-ed27-4616-b2a4-697377161fba/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-ap_file-87.i[917,930] [2024-11-14 05:38:35,020 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 05:38:35,032 INFO L200 MainTranslator]: Completed pre-run [2024-11-14 05:38:35,043 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_a043486a-ed27-4616-b2a4-697377161fba/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-ap_file-87.i[917,930] [2024-11-14 05:38:35,079 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 05:38:35,099 INFO L204 MainTranslator]: Completed translation [2024-11-14 05:38:35,099 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:38:35 WrapperNode [2024-11-14 05:38:35,100 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-14 05:38:35,100 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-14 05:38:35,101 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-14 05:38:35,101 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-14 05:38:35,107 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:38:35" (1/1) ... [2024-11-14 05:38:35,116 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:38:35" (1/1) ... [2024-11-14 05:38:35,172 INFO L138 Inliner]: procedures = 26, calls = 148, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 425 [2024-11-14 05:38:35,173 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-14 05:38:35,173 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-14 05:38:35,173 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-14 05:38:35,174 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-14 05:38:35,186 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:38:35" (1/1) ... [2024-11-14 05:38:35,187 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:38:35" (1/1) ... [2024-11-14 05:38:35,191 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:38:35" (1/1) ... [2024-11-14 05:38:35,194 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:38:35" (1/1) ... [2024-11-14 05:38:35,217 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:38:35" (1/1) ... [2024-11-14 05:38:35,225 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:38:35" (1/1) ... [2024-11-14 05:38:35,229 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:38:35" (1/1) ... [2024-11-14 05:38:35,235 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:38:35" (1/1) ... [2024-11-14 05:38:35,240 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-14 05:38:35,242 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-14 05:38:35,242 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-14 05:38:35,242 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-14 05:38:35,243 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:38:35" (1/1) ... [2024-11-14 05:38:35,251 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 05:38:35,269 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a043486a-ed27-4616-b2a4-697377161fba/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:38:35,285 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a043486a-ed27-4616-b2a4-697377161fba/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-14 05:38:35,293 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a043486a-ed27-4616-b2a4-697377161fba/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-14 05:38:35,323 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-14 05:38:35,323 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-14 05:38:35,323 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-14 05:38:35,323 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-14 05:38:35,324 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-14 05:38:35,324 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-14 05:38:35,324 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-14 05:38:35,324 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-14 05:38:35,498 INFO L238 CfgBuilder]: Building ICFG [2024-11-14 05:38:35,499 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-14 05:38:36,052 INFO L? ?]: Removed 91 outVars from TransFormulas that were not future-live. [2024-11-14 05:38:36,052 INFO L287 CfgBuilder]: Performing block encoding [2024-11-14 05:38:36,684 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-14 05:38:36,685 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-14 05:38:36,685 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 05:38:36 BoogieIcfgContainer [2024-11-14 05:38:36,685 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-14 05:38:36,690 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-14 05:38:36,691 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-14 05:38:36,698 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-14 05:38:36,698 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.11 05:38:34" (1/3) ... [2024-11-14 05:38:36,699 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c7b464b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 05:38:36, skipping insertion in model container [2024-11-14 05:38:36,699 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:38:35" (2/3) ... [2024-11-14 05:38:36,699 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c7b464b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 05:38:36, skipping insertion in model container [2024-11-14 05:38:36,700 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 05:38:36" (3/3) ... [2024-11-14 05:38:36,702 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-ap_file-87.i [2024-11-14 05:38:36,720 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-14 05:38:36,724 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_variablewrapping_wrapper-ap_file-87.i that has 2 procedures, 37 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-14 05:38:36,842 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-14 05:38:36,859 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;@2ea7ca54, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-14 05:38:36,859 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-14 05:38:36,866 INFO L276 IsEmpty]: Start isEmpty. Operand has 37 states, 20 states have (on average 1.15) internal successors, (23), 21 states have internal predecessors, (23), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2024-11-14 05:38:36,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2024-11-14 05:38:36,876 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:38:36,877 INFO L215 NwaCegarLoop]: trace histogram [14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:38:36,877 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 05:38:36,884 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:38:36,885 INFO L85 PathProgramCache]: Analyzing trace with hash 1556479033, now seen corresponding path program 1 times [2024-11-14 05:38:36,893 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:38:36,894 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1004448230] [2024-11-14 05:38:36,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:38:36,895 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:38:38,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-14 05:38:38,451 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1826175036] [2024-11-14 05:38:38,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:38:38,453 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:38:38,454 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a043486a-ed27-4616-b2a4-697377161fba/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:38:38,457 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a043486a-ed27-4616-b2a4-697377161fba/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 05:38:38,462 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a043486a-ed27-4616-b2a4-697377161fba/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-14 05:38:39,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:38:39,366 INFO L255 TraceCheckSpWp]: Trace formula consists of 333 conjuncts, 120 conjuncts are in the unsatisfiable core [2024-11-14 05:38:39,417 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:38:40,540 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2024-11-14 05:38:43,796 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 25 [2024-11-14 05:38:45,420 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 25 [2024-11-14 05:38:46,945 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 25 [2024-11-14 05:38:48,231 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 25 [2024-11-14 05:38:49,545 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 25 [2024-11-14 05:38:51,224 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 37 [2024-11-14 05:38:54,397 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 863 treesize of output 618 [2024-11-14 05:38:54,529 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 782 treesize of output 563 [2024-11-14 05:38:55,576 INFO L349 Elim1Store]: treesize reduction 60, result has 23.1 percent of original size [2024-11-14 05:38:55,577 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 6 new quantified variables, introduced 5 case distinctions, treesize of input 993 treesize of output 777 [2024-11-14 05:38:56,685 INFO L349 Elim1Store]: treesize reduction 77, result has 18.9 percent of original size [2024-11-14 05:38:56,685 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 3 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 8 new quantified variables, introduced 7 case distinctions, treesize of input 811 treesize of output 803 [2024-11-14 05:38:57,156 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-14 05:38:57,158 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 20 [2024-11-14 05:38:57,510 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-14 05:38:57,528 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 22 [2024-11-14 05:39:02,840 INFO L349 Elim1Store]: treesize reduction 89, result has 17.6 percent of original size [2024-11-14 05:39:02,841 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 3 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 7 new quantified variables, introduced 7 case distinctions, treesize of input 277 treesize of output 291 [2024-11-14 05:39:03,498 INFO L134 CoverageAnalysis]: Checked inductivity of 182 backedges. 4 proven. 126 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2024-11-14 05:39:03,498 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 05:41:30,174 WARN L286 SmtUtils]: Spent 6.03s on a formula simplification that was a NOOP. DAG size: 21 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-14 05:49:01,910 WARN L286 SmtUtils]: Spent 5.88s on a formula simplification that was a NOOP. DAG size: 28 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify)