./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.anderson.3.prop1-func-interl.c --full-output --architecture 64bit -------------------------------------------------------------------------------- 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_2d4b54ba-e446-48f4-a097-2dc2fefc8cb1/bin/utaipan-verify-sOmjnqqW8E/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d4b54ba-e446-48f4-a097-2dc2fefc8cb1/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_2d4b54ba-e446-48f4-a097-2dc2fefc8cb1/bin/utaipan-verify-sOmjnqqW8E/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d4b54ba-e446-48f4-a097-2dc2fefc8cb1/bin/utaipan-verify-sOmjnqqW8E/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.anderson.3.prop1-func-interl.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d4b54ba-e446-48f4-a097-2dc2fefc8cb1/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d4b54ba-e446-48f4-a097-2dc2fefc8cb1/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 64bit --witnessprinter.graph.data.programhash f74c0f64dd8b514a3fa45ba4f87a322c4df7984da96078fd039eb406238ea150 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-14 02:46:08,493 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-14 02:46:08,557 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d4b54ba-e446-48f4-a097-2dc2fefc8cb1/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-Reach-64bit-Taipan_Default.epf [2024-11-14 02:46:08,563 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-14 02:46:08,564 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-14 02:46:08,590 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-14 02:46:08,590 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-14 02:46:08,591 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-14 02:46:08,591 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-14 02:46:08,591 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-14 02:46:08,591 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-14 02:46:08,591 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-14 02:46:08,591 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-14 02:46:08,592 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-14 02:46:08,592 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-14 02:46:08,592 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-14 02:46:08,592 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-14 02:46:08,592 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-14 02:46:08,592 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-14 02:46:08,592 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-14 02:46:08,592 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-14 02:46:08,592 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-14 02:46:08,593 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-14 02:46:08,593 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-14 02:46:08,593 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-14 02:46:08,593 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-14 02:46:08,593 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-14 02:46:08,593 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-14 02:46:08,593 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-14 02:46:08,594 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-14 02:46:08,594 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-14 02:46:08,594 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-14 02:46:08,594 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-14 02:46:08,594 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-14 02:46:08,594 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-14 02:46:08,594 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 02:46:08,594 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-14 02:46:08,595 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-14 02:46:08,595 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-14 02:46:08,595 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-14 02:46:08,595 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-14 02:46:08,595 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-14 02:46:08,595 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-14 02:46:08,595 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-14 02:46:08,595 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_2d4b54ba-e446-48f4-a097-2dc2fefc8cb1/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 -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f74c0f64dd8b514a3fa45ba4f87a322c4df7984da96078fd039eb406238ea150 [2024-11-14 02:46:08,870 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-14 02:46:08,882 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-14 02:46:08,885 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-14 02:46:08,887 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-14 02:46:08,888 INFO L274 PluginConnector]: CDTParser initialized [2024-11-14 02:46:08,890 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d4b54ba-e446-48f4-a097-2dc2fefc8cb1/bin/utaipan-verify-sOmjnqqW8E/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.anderson.3.prop1-func-interl.c Unable to find full path for "g++" [2024-11-14 02:46:10,924 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-14 02:46:11,346 INFO L384 CDTParser]: Found 1 translation units. [2024-11-14 02:46:11,347 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d4b54ba-e446-48f4-a097-2dc2fefc8cb1/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.anderson.3.prop1-func-interl.c [2024-11-14 02:46:11,365 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d4b54ba-e446-48f4-a097-2dc2fefc8cb1/bin/utaipan-verify-sOmjnqqW8E/data/95d12ab05/95f611c038d943308a447d017e304325/FLAG1f32148fc [2024-11-14 02:46:11,396 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d4b54ba-e446-48f4-a097-2dc2fefc8cb1/bin/utaipan-verify-sOmjnqqW8E/data/95d12ab05/95f611c038d943308a447d017e304325 [2024-11-14 02:46:11,403 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-14 02:46:11,406 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-14 02:46:11,408 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-14 02:46:11,408 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-14 02:46:11,417 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-14 02:46:11,418 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 02:46:11" (1/1) ... [2024-11-14 02:46:11,422 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5ee00540 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 02:46:11, skipping insertion in model container [2024-11-14 02:46:11,422 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 02:46:11" (1/1) ... [2024-11-14 02:46:11,514 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-14 02:46:11,740 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_2d4b54ba-e446-48f4-a097-2dc2fefc8cb1/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.anderson.3.prop1-func-interl.c[1175,1188] [2024-11-14 02:46:12,104 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 02:46:12,114 INFO L200 MainTranslator]: Completed pre-run [2024-11-14 02:46:12,126 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_2d4b54ba-e446-48f4-a097-2dc2fefc8cb1/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.anderson.3.prop1-func-interl.c[1175,1188] [2024-11-14 02:46:12,352 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 02:46:12,367 INFO L204 MainTranslator]: Completed translation [2024-11-14 02:46:12,367 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 02:46:12 WrapperNode [2024-11-14 02:46:12,368 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-14 02:46:12,369 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-14 02:46:12,370 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-14 02:46:12,370 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-14 02:46:12,376 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 02:46:12" (1/1) ... [2024-11-14 02:46:12,431 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 02:46:12" (1/1) ... [2024-11-14 02:46:13,145 INFO L138 Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 4892 [2024-11-14 02:46:13,147 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-14 02:46:13,148 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-14 02:46:13,148 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-14 02:46:13,148 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-14 02:46:13,156 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 02:46:12" (1/1) ... [2024-11-14 02:46:13,156 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 02:46:12" (1/1) ... [2024-11-14 02:46:13,290 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 02:46:12" (1/1) ... [2024-11-14 02:46:13,291 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 02:46:12" (1/1) ... [2024-11-14 02:46:13,549 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 02:46:12" (1/1) ... [2024-11-14 02:46:13,593 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 02:46:12" (1/1) ... [2024-11-14 02:46:13,691 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 02:46:12" (1/1) ... [2024-11-14 02:46:13,719 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 02:46:12" (1/1) ... [2024-11-14 02:46:13,827 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-14 02:46:13,829 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-14 02:46:13,829 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-14 02:46:13,830 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-14 02:46:13,830 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 02:46:12" (1/1) ... [2024-11-14 02:46:13,838 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 02:46:13,856 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d4b54ba-e446-48f4-a097-2dc2fefc8cb1/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 02:46:13,871 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d4b54ba-e446-48f4-a097-2dc2fefc8cb1/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-14 02:46:13,877 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d4b54ba-e446-48f4-a097-2dc2fefc8cb1/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-14 02:46:13,908 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-14 02:46:13,909 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-14 02:46:13,909 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-14 02:46:13,909 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-14 02:46:14,382 INFO L238 CfgBuilder]: Building ICFG [2024-11-14 02:46:14,384 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-14 02:46:22,036 INFO L? ?]: Removed 2661 outVars from TransFormulas that were not future-live. [2024-11-14 02:46:22,037 INFO L287 CfgBuilder]: Performing block encoding [2024-11-14 02:46:30,356 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-14 02:46:30,357 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-14 02:46:30,357 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 02:46:30 BoogieIcfgContainer [2024-11-14 02:46:30,358 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-14 02:46:30,360 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-14 02:46:30,361 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-14 02:46:30,366 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-14 02:46:30,366 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.11 02:46:11" (1/3) ... [2024-11-14 02:46:30,367 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@52ad771f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 02:46:30, skipping insertion in model container [2024-11-14 02:46:30,367 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 02:46:12" (2/3) ... [2024-11-14 02:46:30,368 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@52ad771f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 02:46:30, skipping insertion in model container [2024-11-14 02:46:30,368 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 02:46:30" (3/3) ... [2024-11-14 02:46:30,369 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.anderson.3.prop1-func-interl.c [2024-11-14 02:46:30,396 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-14 02:46:30,399 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG btor2c-lazyMod.anderson.3.prop1-func-interl.c that has 1 procedures, 7 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-14 02:46:30,463 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-14 02:46:30,483 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;@5030848e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-14 02:46:30,484 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-14 02:46:30,489 INFO L276 IsEmpty]: Start isEmpty. Operand has 7 states, 5 states have (on average 1.6) internal successors, (8), 6 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 02:46:30,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2024-11-14 02:46:30,496 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 02:46:30,498 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2024-11-14 02:46:30,499 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 02:46:30,504 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 02:46:30,504 INFO L85 PathProgramCache]: Analyzing trace with hash 253087344, now seen corresponding path program 1 times [2024-11-14 02:46:30,514 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 02:46:30,516 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1467942219] [2024-11-14 02:46:30,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 02:46:30,517 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 02:46:31,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-14 02:46:31,197 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-14 02:46:31,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-14 02:46:31,507 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2024-11-14 02:46:31,509 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-14 02:46:31,510 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-14 02:46:31,513 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-14 02:46:31,521 INFO L407 BasicCegarLoop]: Path program histogram: [1] [2024-11-14 02:46:31,567 INFO L173 ceAbstractionStarter]: Computing trace abstraction results [2024-11-14 02:46:31,571 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.11 02:46:31 BoogieIcfgContainer [2024-11-14 02:46:31,572 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-14 02:46:31,573 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-14 02:46:31,573 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-14 02:46:31,573 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-14 02:46:31,574 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 02:46:30" (3/4) ... [2024-11-14 02:46:31,580 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-14 02:46:31,581 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-14 02:46:31,582 INFO L158 Benchmark]: Toolchain (without parser) took 20176.55ms. Allocated memory was 142.6MB in the beginning and 1.4GB in the end (delta: 1.2GB). Free memory was 117.6MB in the beginning and 496.2MB in the end (delta: -378.6MB). Peak memory consumption was 844.9MB. Max. memory is 16.1GB. [2024-11-14 02:46:31,584 INFO L158 Benchmark]: CDTParser took 1.36ms. Allocated memory is still 142.6MB. Free memory is still 80.7MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 02:46:31,584 INFO L158 Benchmark]: CACSL2BoogieTranslator took 960.66ms. Allocated memory is still 142.6MB. Free memory was 117.4MB in the beginning and 95.3MB in the end (delta: 22.0MB). Peak memory consumption was 77.2MB. Max. memory is 16.1GB. [2024-11-14 02:46:31,585 INFO L158 Benchmark]: Boogie Procedure Inliner took 778.24ms. Allocated memory was 142.6MB in the beginning and 427.8MB in the end (delta: 285.2MB). Free memory was 95.3MB in the beginning and 312.7MB in the end (delta: -217.4MB). Peak memory consumption was 105.7MB. Max. memory is 16.1GB. [2024-11-14 02:46:31,585 INFO L158 Benchmark]: Boogie Preprocessor took 679.85ms. Allocated memory is still 427.8MB. Free memory was 312.7MB in the beginning and 287.4MB in the end (delta: 25.3MB). Peak memory consumption was 35.6MB. Max. memory is 16.1GB. [2024-11-14 02:46:31,586 INFO L158 Benchmark]: RCFGBuilder took 16528.59ms. Allocated memory was 427.8MB in the beginning and 1.4GB in the end (delta: 939.5MB). Free memory was 287.4MB in the beginning and 585.2MB in the end (delta: -297.8MB). Peak memory consumption was 970.2MB. Max. memory is 16.1GB. [2024-11-14 02:46:31,586 INFO L158 Benchmark]: TraceAbstraction took 1212.35ms. Allocated memory is still 1.4GB. Free memory was 585.2MB in the beginning and 496.2MB in the end (delta: 89.0MB). Peak memory consumption was 92.3MB. Max. memory is 16.1GB. [2024-11-14 02:46:31,586 INFO L158 Benchmark]: Witness Printer took 8.05ms. Allocated memory is still 1.4GB. Free memory is still 496.2MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 02:46:31,590 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.36ms. Allocated memory is still 142.6MB. Free memory is still 80.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 960.66ms. Allocated memory is still 142.6MB. Free memory was 117.4MB in the beginning and 95.3MB in the end (delta: 22.0MB). Peak memory consumption was 77.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 778.24ms. Allocated memory was 142.6MB in the beginning and 427.8MB in the end (delta: 285.2MB). Free memory was 95.3MB in the beginning and 312.7MB in the end (delta: -217.4MB). Peak memory consumption was 105.7MB. Max. memory is 16.1GB. * Boogie Preprocessor took 679.85ms. Allocated memory is still 427.8MB. Free memory was 312.7MB in the beginning and 287.4MB in the end (delta: 25.3MB). Peak memory consumption was 35.6MB. Max. memory is 16.1GB. * RCFGBuilder took 16528.59ms. Allocated memory was 427.8MB in the beginning and 1.4GB in the end (delta: 939.5MB). Free memory was 287.4MB in the beginning and 585.2MB in the end (delta: -297.8MB). Peak memory consumption was 970.2MB. Max. memory is 16.1GB. * TraceAbstraction took 1212.35ms. Allocated memory is still 1.4GB. Free memory was 585.2MB in the beginning and 496.2MB in the end (delta: 89.0MB). Peak memory consumption was 92.3MB. Max. memory is 16.1GB. * Witness Printer took 8.05ms. Allocated memory is still 1.4GB. Free memory is still 496.2MB. 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: 21]: 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 bitwiseAnd at line 68, overapproximation of bitwiseAnd at line 147. Possible FailurePath: [L26] const SORT_1 mask_SORT_1 = (SORT_1)-1 >> (sizeof(SORT_1) * 8 - 1); [L27] const SORT_1 msb_SORT_1 = (SORT_1)1 << (1 - 1); [L29] const SORT_2 mask_SORT_2 = (SORT_2)-1 >> (sizeof(SORT_2) * 8 - 8); [L30] const SORT_2 msb_SORT_2 = (SORT_2)1 << (8 - 1); [L32] const SORT_3 mask_SORT_3 = (SORT_3)-1 >> (sizeof(SORT_3) * 8 - 24); [L33] const SORT_3 msb_SORT_3 = (SORT_3)1 << (24 - 1); [L35] const SORT_4 mask_SORT_4 = (SORT_4)-1 >> (sizeof(SORT_4) * 8 - 32); [L36] const SORT_4 msb_SORT_4 = (SORT_4)1 << (32 - 1); [L38] const SORT_2 var_5 = 0; [L39] const SORT_1 var_20 = 0; [L40] const SORT_4 var_53 = 1; [L41] const SORT_4 var_54 = 0; [L42] const SORT_2 var_63 = 1; [L43] const SORT_3 var_65 = 0; [L44] const SORT_4 var_68 = 3; [L45] const SORT_2 var_78 = 0; [L46] const SORT_4 var_131 = 2; [L47] const SORT_2 var_242 = 2; [L49] SORT_1 input_64; [L50] SORT_1 input_72; [L51] SORT_1 input_79; [L52] SORT_1 input_85; [L53] SORT_1 input_91; [L54] SORT_1 input_97; [L55] SORT_1 input_151; [L56] SORT_1 input_155; [L57] SORT_1 input_158; [L58] SORT_1 input_159; [L59] SORT_1 input_160; [L60] SORT_1 input_161; [L61] SORT_1 input_169; [L62] SORT_1 input_175; [L63] SORT_1 input_181; [L64] SORT_1 input_196; [L65] SORT_1 input_214; [L66] SORT_1 input_232; [L68] EXPR __VERIFIER_nondet_uchar() & mask_SORT_2 [L68] SORT_2 state_6 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L69] EXPR __VERIFIER_nondet_uchar() & mask_SORT_2 [L69] SORT_2 state_8 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L70] EXPR __VERIFIER_nondet_uchar() & mask_SORT_2 [L70] SORT_2 state_10 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L71] EXPR __VERIFIER_nondet_uchar() & mask_SORT_2 [L71] SORT_2 state_12 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L72] EXPR __VERIFIER_nondet_uchar() & mask_SORT_2 [L72] SORT_2 state_14 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L73] EXPR __VERIFIER_nondet_uchar() & mask_SORT_2 [L73] SORT_2 state_16 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L74] EXPR __VERIFIER_nondet_uchar() & mask_SORT_2 [L74] SORT_2 state_18 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L75] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L75] SORT_1 state_21 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L76] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L76] SORT_1 state_23 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L77] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L77] SORT_1 state_25 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L78] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L78] SORT_1 state_27 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L79] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L79] SORT_1 state_29 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L80] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L80] SORT_1 state_31 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L81] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L81] SORT_1 state_33 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L82] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L82] SORT_1 state_35 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L83] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L83] SORT_1 state_37 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L84] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L84] SORT_1 state_39 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L85] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L85] SORT_1 state_41 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L86] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L86] SORT_1 state_43 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L87] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L87] SORT_1 state_45 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L88] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L88] SORT_1 state_47 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L89] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L89] SORT_1 state_49 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L90] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L90] SORT_1 state_51 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L92] SORT_2 init_7_arg_1 = var_5; [L93] state_6 = init_7_arg_1 [L94] SORT_2 init_9_arg_1 = var_5; [L95] state_8 = init_9_arg_1 [L96] SORT_2 init_11_arg_1 = var_5; [L97] state_10 = init_11_arg_1 [L98] SORT_2 init_13_arg_1 = var_5; [L99] state_12 = init_13_arg_1 [L100] SORT_2 init_15_arg_1 = var_5; [L101] state_14 = init_15_arg_1 [L102] SORT_2 init_17_arg_1 = var_5; [L103] state_16 = init_17_arg_1 [L104] SORT_2 init_19_arg_1 = var_5; [L105] state_18 = init_19_arg_1 [L106] SORT_1 init_22_arg_1 = var_20; [L107] state_21 = init_22_arg_1 [L108] SORT_1 init_24_arg_1 = var_20; [L109] state_23 = init_24_arg_1 [L110] SORT_1 init_26_arg_1 = var_20; [L111] state_25 = init_26_arg_1 [L112] SORT_1 init_28_arg_1 = var_20; [L113] state_27 = init_28_arg_1 [L114] SORT_1 init_30_arg_1 = var_20; [L115] state_29 = init_30_arg_1 [L116] SORT_1 init_32_arg_1 = var_20; [L117] state_31 = init_32_arg_1 [L118] SORT_1 init_34_arg_1 = var_20; [L119] state_33 = init_34_arg_1 [L120] SORT_1 init_36_arg_1 = var_20; [L121] state_35 = init_36_arg_1 [L122] SORT_1 init_38_arg_1 = var_20; [L123] state_37 = init_38_arg_1 [L124] SORT_1 init_40_arg_1 = var_20; [L125] state_39 = init_40_arg_1 [L126] SORT_1 init_42_arg_1 = var_20; [L127] state_41 = init_42_arg_1 [L128] SORT_1 init_44_arg_1 = var_20; [L129] state_43 = init_44_arg_1 [L130] SORT_1 init_46_arg_1 = var_20; [L131] state_45 = init_46_arg_1 [L132] SORT_1 init_48_arg_1 = var_20; [L133] state_47 = init_48_arg_1 [L134] SORT_1 init_50_arg_1 = var_20; [L135] state_49 = init_50_arg_1 [L136] SORT_1 init_52_arg_1 = var_20; [L137] state_51 = init_52_arg_1 VAL [mask_SORT_1=1, mask_SORT_2=255, mask_SORT_4=-1, msb_SORT_4=2147483648, state_10=0, state_12=0, state_14=0, state_16=0, state_18=0, state_21=0, state_23=0, state_25=0, state_27=0, state_29=0, state_31=0, state_33=0, state_35=0, state_37=0, state_39=0, state_41=0, state_43=0, state_45=0, state_47=0, state_49=0, state_51=0, state_6=0, state_8=0, var_131=2, var_242=2, var_53=1, var_54=0, var_63=1, var_65=0, var_68=3, var_78=0] [L140] input_64 = __VERIFIER_nondet_uchar() [L141] input_72 = __VERIFIER_nondet_uchar() [L142] input_79 = __VERIFIER_nondet_uchar() [L143] input_85 = __VERIFIER_nondet_uchar() [L144] input_91 = __VERIFIER_nondet_uchar() [L145] input_97 = __VERIFIER_nondet_uchar() [L146] input_151 = __VERIFIER_nondet_uchar() [L147] EXPR input_151 & mask_SORT_1 [L147] input_151 = input_151 & mask_SORT_1 [L148] input_155 = __VERIFIER_nondet_uchar() [L149] EXPR input_155 & mask_SORT_1 [L149] input_155 = input_155 & mask_SORT_1 [L150] input_158 = __VERIFIER_nondet_uchar() [L151] EXPR input_158 & mask_SORT_1 [L151] input_158 = input_158 & mask_SORT_1 [L152] input_159 = __VERIFIER_nondet_uchar() [L153] EXPR input_159 & mask_SORT_1 [L153] input_159 = input_159 & mask_SORT_1 [L154] input_160 = __VERIFIER_nondet_uchar() [L155] EXPR input_160 & mask_SORT_1 [L155] input_160 = input_160 & mask_SORT_1 [L156] input_161 = __VERIFIER_nondet_uchar() [L157] EXPR input_161 & mask_SORT_1 [L157] input_161 = input_161 & mask_SORT_1 [L158] input_169 = __VERIFIER_nondet_uchar() [L159] EXPR input_169 & mask_SORT_1 [L159] input_169 = input_169 & mask_SORT_1 [L160] input_175 = __VERIFIER_nondet_uchar() [L161] EXPR input_175 & mask_SORT_1 [L161] input_175 = input_175 & mask_SORT_1 [L162] input_181 = __VERIFIER_nondet_uchar() [L163] EXPR input_181 & mask_SORT_1 [L163] input_181 = input_181 & mask_SORT_1 [L164] input_196 = __VERIFIER_nondet_uchar() [L165] input_214 = __VERIFIER_nondet_uchar() [L166] input_232 = __VERIFIER_nondet_uchar() [L169] SORT_1 var_55_arg_0 = state_29; [L170] SORT_4 var_55_arg_1 = var_53; [L171] SORT_4 var_55_arg_2 = var_54; [L172] SORT_4 var_55 = var_55_arg_0 ? var_55_arg_1 : var_55_arg_2; [L173] SORT_1 var_56_arg_0 = state_39; [L174] SORT_4 var_56_arg_1 = var_53; [L175] SORT_4 var_56_arg_2 = var_54; [L176] SORT_4 var_56 = var_56_arg_0 ? var_56_arg_1 : var_56_arg_2; [L177] SORT_4 var_57_arg_0 = var_55; [L178] SORT_4 var_57_arg_1 = var_56; [L179] SORT_4 var_57 = var_57_arg_0 + var_57_arg_1; [L180] SORT_1 var_58_arg_0 = state_49; [L181] SORT_4 var_58_arg_1 = var_53; [L182] SORT_4 var_58_arg_2 = var_54; [L183] SORT_4 var_58 = var_58_arg_0 ? var_58_arg_1 : var_58_arg_2; [L184] SORT_4 var_59_arg_0 = var_57; [L185] SORT_4 var_59_arg_1 = var_58; [L186] SORT_4 var_59 = var_59_arg_0 + var_59_arg_1; [L187] EXPR var_59 & mask_SORT_4 [L187] var_59 = var_59 & mask_SORT_4 [L188] SORT_4 var_60_arg_0 = var_59; [L189] SORT_4 var_60_arg_1 = var_53; [L190] SORT_1 var_60 = var_60_arg_0 <= var_60_arg_1; [L191] SORT_1 var_61_arg_0 = ~state_51; [L192] EXPR var_61_arg_0 & mask_SORT_1 [L192] var_61_arg_0 = var_61_arg_0 & mask_SORT_1 [L193] SORT_1 var_61_arg_1 = ~var_60; [L194] EXPR var_61_arg_1 & mask_SORT_1 [L194] var_61_arg_1 = var_61_arg_1 & mask_SORT_1 [L195] EXPR var_61_arg_0 & var_61_arg_1 [L195] SORT_1 var_61 = var_61_arg_0 & var_61_arg_1; [L196] EXPR var_61 & mask_SORT_1 [L196] var_61 = var_61 & mask_SORT_1 [L197] SORT_1 bad_62_arg_0 = var_61; [L198] CALL __VERIFIER_assert(!(bad_62_arg_0)) [L21] COND TRUE !(cond) [L21] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 7 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.1s, OverallIterations: 1, TraceHistogramMax: 1, 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=7occurred 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, 4 NumberOfCodeBlocks, 4 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 [2024-11-14 02:46:31,638 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d4b54ba-e446-48f4-a097-2dc2fefc8cb1/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_2d4b54ba-e446-48f4-a097-2dc2fefc8cb1/bin/utaipan-verify-sOmjnqqW8E/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d4b54ba-e446-48f4-a097-2dc2fefc8cb1/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_2d4b54ba-e446-48f4-a097-2dc2fefc8cb1/bin/utaipan-verify-sOmjnqqW8E/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d4b54ba-e446-48f4-a097-2dc2fefc8cb1/bin/utaipan-verify-sOmjnqqW8E/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.anderson.3.prop1-func-interl.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d4b54ba-e446-48f4-a097-2dc2fefc8cb1/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-Reach-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d4b54ba-e446-48f4-a097-2dc2fefc8cb1/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 64bit --witnessprinter.graph.data.programhash f74c0f64dd8b514a3fa45ba4f87a322c4df7984da96078fd039eb406238ea150 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-14 02:46:34,759 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-14 02:46:34,871 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d4b54ba-e446-48f4-a097-2dc2fefc8cb1/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2024-11-14 02:46:34,881 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-14 02:46:34,882 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-14 02:46:34,919 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-14 02:46:34,921 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-14 02:46:34,921 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-14 02:46:34,922 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-14 02:46:34,922 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-14 02:46:34,922 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-14 02:46:34,922 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-14 02:46:34,923 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-14 02:46:34,923 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-14 02:46:34,924 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-14 02:46:34,924 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-14 02:46:34,925 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-14 02:46:34,925 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-14 02:46:34,925 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-14 02:46:34,925 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-14 02:46:34,925 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-14 02:46:34,925 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-14 02:46:34,926 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-14 02:46:34,926 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-14 02:46:34,926 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-14 02:46:34,926 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-14 02:46:34,926 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-14 02:46:34,926 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-14 02:46:34,926 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-14 02:46:34,927 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-14 02:46:34,927 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-14 02:46:34,927 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-14 02:46:34,927 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 02:46:34,928 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-14 02:46:34,928 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-14 02:46:34,928 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-14 02:46:34,928 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2024-11-14 02:46:34,928 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-14 02:46:34,928 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-14 02:46:34,928 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-14 02:46:34,929 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_2d4b54ba-e446-48f4-a097-2dc2fefc8cb1/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 -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f74c0f64dd8b514a3fa45ba4f87a322c4df7984da96078fd039eb406238ea150 [2024-11-14 02:46:35,282 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-14 02:46:35,290 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-14 02:46:35,292 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-14 02:46:35,294 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-14 02:46:35,295 INFO L274 PluginConnector]: CDTParser initialized [2024-11-14 02:46:35,299 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d4b54ba-e446-48f4-a097-2dc2fefc8cb1/bin/utaipan-verify-sOmjnqqW8E/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.anderson.3.prop1-func-interl.c Unable to find full path for "g++" [2024-11-14 02:46:37,237 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-14 02:46:37,655 INFO L384 CDTParser]: Found 1 translation units. [2024-11-14 02:46:37,659 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d4b54ba-e446-48f4-a097-2dc2fefc8cb1/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.anderson.3.prop1-func-interl.c [2024-11-14 02:46:37,680 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d4b54ba-e446-48f4-a097-2dc2fefc8cb1/bin/utaipan-verify-sOmjnqqW8E/data/183aff77f/809b8af9a2a74572b4ad74cf0548ebc8/FLAG9b3a139ca [2024-11-14 02:46:37,709 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d4b54ba-e446-48f4-a097-2dc2fefc8cb1/bin/utaipan-verify-sOmjnqqW8E/data/183aff77f/809b8af9a2a74572b4ad74cf0548ebc8 [2024-11-14 02:46:37,712 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-14 02:46:37,714 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-14 02:46:37,717 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-14 02:46:37,717 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-14 02:46:37,722 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-14 02:46:37,723 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 02:46:37" (1/1) ... [2024-11-14 02:46:37,724 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@774ae947 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 02:46:37, skipping insertion in model container [2024-11-14 02:46:37,724 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 02:46:37" (1/1) ... [2024-11-14 02:46:37,791 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-14 02:46:37,993 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_2d4b54ba-e446-48f4-a097-2dc2fefc8cb1/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.anderson.3.prop1-func-interl.c[1175,1188] [2024-11-14 02:46:38,340 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 02:46:38,361 INFO L200 MainTranslator]: Completed pre-run [2024-11-14 02:46:38,372 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_2d4b54ba-e446-48f4-a097-2dc2fefc8cb1/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.anderson.3.prop1-func-interl.c[1175,1188] [2024-11-14 02:46:38,553 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 02:46:38,568 INFO L204 MainTranslator]: Completed translation [2024-11-14 02:46:38,569 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 02:46:38 WrapperNode [2024-11-14 02:46:38,569 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-14 02:46:38,570 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-14 02:46:38,570 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-14 02:46:38,570 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-14 02:46:38,578 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 02:46:38" (1/1) ... [2024-11-14 02:46:38,624 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 02:46:38" (1/1) ... [2024-11-14 02:46:38,729 INFO L138 Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1432 [2024-11-14 02:46:38,729 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-14 02:46:38,731 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-14 02:46:38,731 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-14 02:46:38,731 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-14 02:46:38,741 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 02:46:38" (1/1) ... [2024-11-14 02:46:38,741 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 02:46:38" (1/1) ... [2024-11-14 02:46:38,757 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 02:46:38" (1/1) ... [2024-11-14 02:46:38,757 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 02:46:38" (1/1) ... [2024-11-14 02:46:38,816 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 02:46:38" (1/1) ... [2024-11-14 02:46:38,827 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 02:46:38" (1/1) ... [2024-11-14 02:46:38,877 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 02:46:38" (1/1) ... [2024-11-14 02:46:38,890 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 02:46:38" (1/1) ... [2024-11-14 02:46:38,905 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-14 02:46:38,906 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-14 02:46:38,907 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-14 02:46:38,908 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-14 02:46:38,909 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 02:46:38" (1/1) ... [2024-11-14 02:46:38,918 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 02:46:38,933 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d4b54ba-e446-48f4-a097-2dc2fefc8cb1/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 02:46:38,949 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d4b54ba-e446-48f4-a097-2dc2fefc8cb1/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-14 02:46:38,953 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d4b54ba-e446-48f4-a097-2dc2fefc8cb1/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-14 02:46:38,983 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-14 02:46:38,983 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-11-14 02:46:38,983 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-14 02:46:38,984 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-14 02:46:39,397 INFO L238 CfgBuilder]: Building ICFG [2024-11-14 02:46:39,399 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-14 02:46:43,232 INFO L? ?]: Removed 77 outVars from TransFormulas that were not future-live. [2024-11-14 02:46:43,232 INFO L287 CfgBuilder]: Performing block encoding [2024-11-14 02:46:43,241 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-14 02:46:43,241 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-14 02:46:43,242 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 02:46:43 BoogieIcfgContainer [2024-11-14 02:46:43,242 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-14 02:46:43,246 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-14 02:46:43,246 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-14 02:46:43,250 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-14 02:46:43,250 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.11 02:46:37" (1/3) ... [2024-11-14 02:46:43,251 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@37637b4e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 02:46:43, skipping insertion in model container [2024-11-14 02:46:43,251 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 02:46:38" (2/3) ... [2024-11-14 02:46:43,251 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@37637b4e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 02:46:43, skipping insertion in model container [2024-11-14 02:46:43,252 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 02:46:43" (3/3) ... [2024-11-14 02:46:43,253 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.anderson.3.prop1-func-interl.c [2024-11-14 02:46:43,268 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-14 02:46:43,269 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG btor2c-lazyMod.anderson.3.prop1-func-interl.c that has 1 procedures, 10 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-14 02:46:43,321 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-14 02:46:43,334 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;@71ac8107, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-14 02:46:43,334 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-14 02:46:43,338 INFO L276 IsEmpty]: Start isEmpty. Operand has 10 states, 8 states have (on average 1.375) internal successors, (11), 9 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 02:46:43,344 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2024-11-14 02:46:43,344 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 02:46:43,345 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2024-11-14 02:46:43,345 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 02:46:43,350 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 02:46:43,350 INFO L85 PathProgramCache]: Analyzing trace with hash 28694789, now seen corresponding path program 1 times [2024-11-14 02:46:43,361 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 02:46:43,362 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [874391790] [2024-11-14 02:46:43,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 02:46:43,363 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 [2024-11-14 02:46:43,363 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d4b54ba-e446-48f4-a097-2dc2fefc8cb1/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 02:46:43,366 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d4b54ba-e446-48f4-a097-2dc2fefc8cb1/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) [2024-11-14 02:46:43,369 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d4b54ba-e446-48f4-a097-2dc2fefc8cb1/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 [2024-11-14 02:46:43,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 02:46:43,777 INFO L255 TraceCheckSpWp]: Trace formula consists of 114 conjuncts, 32 conjuncts are in the unsatisfiable core [2024-11-14 02:46:43,794 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 02:46:44,319 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 02:46:44,319 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 02:46:44,320 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 02:46:44,320 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [874391790] [2024-11-14 02:46:44,324 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [874391790] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 02:46:44,325 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 02:46:44,325 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-14 02:46:44,327 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [490138946] [2024-11-14 02:46:44,329 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 02:46:44,333 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-14 02:46:44,333 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 02:46:44,356 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-14 02:46:44,357 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-14 02:46:44,359 INFO L87 Difference]: Start difference. First operand has 10 states, 8 states have (on average 1.375) internal successors, (11), 9 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 02:46:46,630 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.16s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-14 02:46:47,595 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 02:46:47,595 INFO L93 Difference]: Finished difference Result 18 states and 23 transitions. [2024-11-14 02:46:47,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-14 02:46:47,598 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2024-11-14 02:46:47,598 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 02:46:47,605 INFO L225 Difference]: With dead ends: 18 [2024-11-14 02:46:47,605 INFO L226 Difference]: Without dead ends: 10 [2024-11-14 02:46:47,607 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-14 02:46:47,610 INFO L432 NwaCegarLoop]: 4 mSDtfsCounter, 2 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 11 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2024-11-14 02:46:47,611 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 11 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 1 Unknown, 0 Unchecked, 3.1s Time] [2024-11-14 02:46:47,624 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states. [2024-11-14 02:46:47,633 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 9. [2024-11-14 02:46:47,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 8 states have (on average 1.125) internal successors, (9), 8 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 02:46:47,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2024-11-14 02:46:47,638 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 5 [2024-11-14 02:46:47,638 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 02:46:47,638 INFO L471 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2024-11-14 02:46:47,639 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 02:46:47,639 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2024-11-14 02:46:47,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-14 02:46:47,639 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 02:46:47,640 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2024-11-14 02:46:47,643 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d4b54ba-e446-48f4-a097-2dc2fefc8cb1/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 [2024-11-14 02:46:47,842 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d4b54ba-e446-48f4-a097-2dc2fefc8cb1/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 [2024-11-14 02:46:47,843 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 02:46:47,843 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 02:46:47,843 INFO L85 PathProgramCache]: Analyzing trace with hash 152739811, now seen corresponding path program 1 times [2024-11-14 02:46:47,844 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 02:46:47,844 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1014217331] [2024-11-14 02:46:47,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 02:46:47,844 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 [2024-11-14 02:46:47,845 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d4b54ba-e446-48f4-a097-2dc2fefc8cb1/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 02:46:47,847 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d4b54ba-e446-48f4-a097-2dc2fefc8cb1/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) [2024-11-14 02:46:47,848 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d4b54ba-e446-48f4-a097-2dc2fefc8cb1/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 [2024-11-14 02:46:49,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 02:46:49,176 INFO L255 TraceCheckSpWp]: Trace formula consists of 174 conjuncts, 43 conjuncts are in the unsatisfiable core [2024-11-14 02:46:49,196 INFO L278 TraceCheckSpWp]: Computing forward predicates...