./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-250_file-34.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_f28b07be-1d45-4d18-87e7-c2fe302c6398/bin/utaipan-verify-sOmjnqqW8E/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f28b07be-1d45-4d18-87e7-c2fe302c6398/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_f28b07be-1d45-4d18-87e7-c2fe302c6398/bin/utaipan-verify-sOmjnqqW8E/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f28b07be-1d45-4d18-87e7-c2fe302c6398/bin/utaipan-verify-sOmjnqqW8E/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-250_file-34.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f28b07be-1d45-4d18-87e7-c2fe302c6398/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_f28b07be-1d45-4d18-87e7-c2fe302c6398/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 44b378d526031e337ca9dca8ceafd0969cff3babd6a41cd4484561488d3936f8 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-14 04:47:15,263 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-14 04:47:15,391 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f28b07be-1d45-4d18-87e7-c2fe302c6398/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-Reach-32bit-Taipan_Default.epf [2024-11-14 04:47:15,398 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-14 04:47:15,399 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-14 04:47:15,446 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-14 04:47:15,447 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-14 04:47:15,447 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-14 04:47:15,447 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-14 04:47:15,447 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-14 04:47:15,448 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-14 04:47:15,451 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-14 04:47:15,451 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-14 04:47:15,451 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-14 04:47:15,451 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-14 04:47:15,451 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-14 04:47:15,451 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-14 04:47:15,452 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-14 04:47:15,452 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-14 04:47:15,452 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-14 04:47:15,452 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-14 04:47:15,452 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-14 04:47:15,453 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-14 04:47:15,453 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-14 04:47:15,453 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-14 04:47:15,453 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-14 04:47:15,453 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-14 04:47:15,454 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-14 04:47:15,456 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-14 04:47:15,456 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-14 04:47:15,456 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-14 04:47:15,456 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-14 04:47:15,456 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-14 04:47:15,457 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-14 04:47:15,457 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-14 04:47:15,457 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-14 04:47:15,458 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-14 04:47:15,458 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-14 04:47:15,458 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 04:47:15,458 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-14 04:47:15,458 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-14 04:47:15,458 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-14 04:47:15,458 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-14 04:47:15,458 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-14 04:47:15,459 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-14 04:47:15,459 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-14 04:47:15,459 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-14 04:47:15,459 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_f28b07be-1d45-4d18-87e7-c2fe302c6398/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 -> 44b378d526031e337ca9dca8ceafd0969cff3babd6a41cd4484561488d3936f8 [2024-11-14 04:47:15,907 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-14 04:47:15,919 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-14 04:47:15,922 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-14 04:47:15,924 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-14 04:47:15,925 INFO L274 PluginConnector]: CDTParser initialized [2024-11-14 04:47:15,927 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f28b07be-1d45-4d18-87e7-c2fe302c6398/bin/utaipan-verify-sOmjnqqW8E/../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-250_file-34.i Unable to find full path for "g++" [2024-11-14 04:47:18,442 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-14 04:47:18,785 INFO L384 CDTParser]: Found 1 translation units. [2024-11-14 04:47:18,786 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f28b07be-1d45-4d18-87e7-c2fe302c6398/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-250_file-34.i [2024-11-14 04:47:18,799 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f28b07be-1d45-4d18-87e7-c2fe302c6398/bin/utaipan-verify-sOmjnqqW8E/data/de7cd9476/0b1510e2d6a44b84b5754b9255a0caf7/FLAG10df626c8 [2024-11-14 04:47:19,006 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f28b07be-1d45-4d18-87e7-c2fe302c6398/bin/utaipan-verify-sOmjnqqW8E/data/de7cd9476/0b1510e2d6a44b84b5754b9255a0caf7 [2024-11-14 04:47:19,008 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-14 04:47:19,009 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-14 04:47:19,011 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-14 04:47:19,011 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-14 04:47:19,015 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-14 04:47:19,016 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 04:47:19" (1/1) ... [2024-11-14 04:47:19,017 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@61435fbd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:47:19, skipping insertion in model container [2024-11-14 04:47:19,017 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 04:47:19" (1/1) ... [2024-11-14 04:47:19,053 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-14 04:47:19,263 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_f28b07be-1d45-4d18-87e7-c2fe302c6398/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-250_file-34.i[916,929] [2024-11-14 04:47:19,456 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 04:47:19,473 INFO L200 MainTranslator]: Completed pre-run [2024-11-14 04:47:19,490 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_f28b07be-1d45-4d18-87e7-c2fe302c6398/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-250_file-34.i[916,929] [2024-11-14 04:47:19,652 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 04:47:19,682 INFO L204 MainTranslator]: Completed translation [2024-11-14 04:47:19,682 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:47:19 WrapperNode [2024-11-14 04:47:19,683 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-14 04:47:19,684 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-14 04:47:19,685 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-14 04:47:19,685 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-14 04:47:19,697 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:47:19" (1/1) ... [2024-11-14 04:47:19,727 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:47:19" (1/1) ... [2024-11-14 04:47:19,819 INFO L138 Inliner]: procedures = 26, calls = 84, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 546 [2024-11-14 04:47:19,819 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-14 04:47:19,820 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-14 04:47:19,820 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-14 04:47:19,821 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-14 04:47:19,830 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:47:19" (1/1) ... [2024-11-14 04:47:19,830 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:47:19" (1/1) ... [2024-11-14 04:47:19,843 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:47:19" (1/1) ... [2024-11-14 04:47:19,844 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:47:19" (1/1) ... [2024-11-14 04:47:19,881 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:47:19" (1/1) ... [2024-11-14 04:47:19,895 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:47:19" (1/1) ... [2024-11-14 04:47:19,905 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:47:19" (1/1) ... [2024-11-14 04:47:19,916 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:47:19" (1/1) ... [2024-11-14 04:47:19,933 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-14 04:47:19,937 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-14 04:47:19,938 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-14 04:47:19,938 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-14 04:47:19,939 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:47:19" (1/1) ... [2024-11-14 04:47:19,954 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 04:47:19,974 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f28b07be-1d45-4d18-87e7-c2fe302c6398/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 04:47:19,990 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f28b07be-1d45-4d18-87e7-c2fe302c6398/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-14 04:47:19,995 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f28b07be-1d45-4d18-87e7-c2fe302c6398/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-14 04:47:20,028 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-14 04:47:20,029 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-14 04:47:20,029 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-14 04:47:20,029 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-14 04:47:20,030 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-14 04:47:20,030 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-14 04:47:20,248 INFO L238 CfgBuilder]: Building ICFG [2024-11-14 04:47:20,251 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-14 04:47:21,685 INFO L? ?]: Removed 32 outVars from TransFormulas that were not future-live. [2024-11-14 04:47:21,686 INFO L287 CfgBuilder]: Performing block encoding [2024-11-14 04:47:23,285 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-14 04:47:23,289 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-14 04:47:23,290 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 04:47:23 BoogieIcfgContainer [2024-11-14 04:47:23,290 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-14 04:47:23,293 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-14 04:47:23,294 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-14 04:47:23,303 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-14 04:47:23,304 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.11 04:47:19" (1/3) ... [2024-11-14 04:47:23,304 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@295ed7aa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 04:47:23, skipping insertion in model container [2024-11-14 04:47:23,305 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:47:19" (2/3) ... [2024-11-14 04:47:23,305 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@295ed7aa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 04:47:23, skipping insertion in model container [2024-11-14 04:47:23,305 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 04:47:23" (3/3) ... [2024-11-14 04:47:23,307 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodesize_ps-cn-250_file-34.i [2024-11-14 04:47:23,331 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-14 04:47:23,335 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_fillercode_fillercodesize_ps-cn-250_file-34.i that has 2 procedures, 117 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-14 04:47:23,437 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-14 04:47:23,460 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;@62aea327, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-14 04:47:23,461 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-14 04:47:23,466 INFO L276 IsEmpty]: Start isEmpty. Operand has 117 states, 43 states have (on average 1.069767441860465) internal successors, (46), 44 states have internal predecessors, (46), 71 states have call successors, (71), 1 states have call predecessors, (71), 1 states have return successors, (71), 71 states have call predecessors, (71), 71 states have call successors, (71) [2024-11-14 04:47:23,494 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 255 [2024-11-14 04:47:23,496 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:47:23,498 INFO L215 NwaCegarLoop]: trace histogram [71, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:47:23,498 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 04:47:23,508 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:47:23,509 INFO L85 PathProgramCache]: Analyzing trace with hash 1430368392, now seen corresponding path program 1 times [2024-11-14 04:47:23,522 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:47:23,522 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1062374697] [2024-11-14 04:47:23,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:47:23,524 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:47:27,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:47:48,275 INFO L134 CoverageAnalysis]: Checked inductivity of 4970 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4970 trivial. 0 not checked. [2024-11-14 04:47:48,276 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:47:48,276 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1062374697] [2024-11-14 04:47:48,277 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1062374697] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 04:47:48,277 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 04:47:48,278 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-14 04:47:48,282 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [863873571] [2024-11-14 04:47:48,283 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:47:48,288 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-14 04:47:48,288 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 04:47:48,317 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-14 04:47:48,318 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-14 04:47:48,320 INFO L87 Difference]: Start difference. First operand has 117 states, 43 states have (on average 1.069767441860465) internal successors, (46), 44 states have internal predecessors, (46), 71 states have call successors, (71), 1 states have call predecessors, (71), 1 states have return successors, (71), 71 states have call predecessors, (71), 71 states have call successors, (71) Second operand has 5 states, 5 states have (on average 8.4) internal successors, (42), 5 states have internal predecessors, (42), 1 states have call successors, (71), 1 states have call predecessors, (71), 1 states have return successors, (71), 1 states have call predecessors, (71), 1 states have call successors, (71) [2024-11-14 04:47:50,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:47:50,324 INFO L93 Difference]: Finished difference Result 346 states and 562 transitions. [2024-11-14 04:47:50,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-14 04:47:50,327 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), 1 states have call successors, (71), 1 states have call predecessors, (71), 1 states have return successors, (71), 1 states have call predecessors, (71), 1 states have call successors, (71) Word has length 254 [2024-11-14 04:47:50,329 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:47:50,341 INFO L225 Difference]: With dead ends: 346 [2024-11-14 04:47:50,341 INFO L226 Difference]: Without dead ends: 230 [2024-11-14 04:47:50,346 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-14 04:47:50,350 INFO L432 NwaCegarLoop]: 181 mSDtfsCounter, 42 mSDsluCounter, 542 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 214 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 723 SdHoareTripleChecker+Invalid, 233 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 214 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-11-14 04:47:50,351 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 723 Invalid, 233 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [214 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-11-14 04:47:50,373 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 230 states. [2024-11-14 04:47:50,566 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 230 to 228. [2024-11-14 04:47:50,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 228 states, 83 states have (on average 1.0120481927710843) internal successors, (84), 83 states have internal predecessors, (84), 142 states have call successors, (142), 2 states have call predecessors, (142), 2 states have return successors, (142), 142 states have call predecessors, (142), 142 states have call successors, (142) [2024-11-14 04:47:50,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 228 states to 228 states and 368 transitions. [2024-11-14 04:47:50,589 INFO L78 Accepts]: Start accepts. Automaton has 228 states and 368 transitions. Word has length 254 [2024-11-14 04:47:50,612 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:47:50,612 INFO L471 AbstractCegarLoop]: Abstraction has 228 states and 368 transitions. [2024-11-14 04:47:50,613 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), 1 states have call successors, (71), 1 states have call predecessors, (71), 1 states have return successors, (71), 1 states have call predecessors, (71), 1 states have call successors, (71) [2024-11-14 04:47:50,613 INFO L276 IsEmpty]: Start isEmpty. Operand 228 states and 368 transitions. [2024-11-14 04:47:50,627 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 508 [2024-11-14 04:47:50,627 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:47:50,628 INFO L215 NwaCegarLoop]: trace histogram [142, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1] [2024-11-14 04:47:50,628 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-14 04:47:50,629 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 04:47:50,630 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:47:50,631 INFO L85 PathProgramCache]: Analyzing trace with hash 630694126, now seen corresponding path program 1 times [2024-11-14 04:47:50,631 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:47:50,631 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1990246123] [2024-11-14 04:47:50,631 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:47:50,632 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:47:57,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:48:41,234 INFO L134 CoverageAnalysis]: Checked inductivity of 20132 backedges. 166 proven. 629 refuted. 0 times theorem prover too weak. 19337 trivial. 0 not checked. [2024-11-14 04:48:41,234 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:48:41,236 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1990246123] [2024-11-14 04:48:41,236 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1990246123] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 04:48:41,236 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1365295599] [2024-11-14 04:48:41,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:48:41,237 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 04:48:41,237 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f28b07be-1d45-4d18-87e7-c2fe302c6398/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 04:48:41,242 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f28b07be-1d45-4d18-87e7-c2fe302c6398/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 04:48:41,244 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f28b07be-1d45-4d18-87e7-c2fe302c6398/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-14 04:48:59,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:48:59,199 INFO L255 TraceCheckSpWp]: Trace formula consists of 1249 conjuncts, 29 conjuncts are in the unsatisfiable core [2024-11-14 04:48:59,245 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:54:43,801 INFO L134 CoverageAnalysis]: Checked inductivity of 20132 backedges. 1030 proven. 10321 refuted. 0 times theorem prover too weak. 8781 trivial. 0 not checked. [2024-11-14 04:54:43,802 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 04:58:04,893 INFO L134 CoverageAnalysis]: Checked inductivity of 20132 backedges. 79 proven. 172 refuted. 0 times theorem prover too weak. 19881 trivial. 0 not checked. [2024-11-14 04:58:04,893 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1365295599] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 04:58:04,893 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [795248986] [2024-11-14 04:58:04,927 INFO L159 IcfgInterpreter]: Started Sifa with 116 locations of interest [2024-11-14 04:58:04,927 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 04:58:04,931 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 04:58:04,938 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 04:58:04,938 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs