./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_vsa16a_p5.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_b7997319-db4d-47b0-96f4-10e58901f4bc/bin/utaipan-verify-sOmjnqqW8E/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7997319-db4d-47b0-96f4-10e58901f4bc/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_b7997319-db4d-47b0-96f4-10e58901f4bc/bin/utaipan-verify-sOmjnqqW8E/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7997319-db4d-47b0-96f4-10e58901f4bc/bin/utaipan-verify-sOmjnqqW8E/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_vsa16a_p5.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7997319-db4d-47b0-96f4-10e58901f4bc/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_b7997319-db4d-47b0-96f4-10e58901f4bc/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 b88007960cae79b63604455924d89f4d8e6ff83730f3fe3600fe1cad3b333850 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-14 04:33:49,464 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-14 04:33:49,576 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7997319-db4d-47b0-96f4-10e58901f4bc/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-Reach-64bit-Taipan_Default.epf [2024-11-14 04:33:49,582 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-14 04:33:49,583 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-14 04:33:49,621 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-14 04:33:49,623 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-14 04:33:49,623 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-14 04:33:49,624 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-14 04:33:49,624 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-14 04:33:49,625 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-14 04:33:49,626 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-14 04:33:49,626 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-14 04:33:49,626 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-14 04:33:49,627 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-14 04:33:49,627 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-14 04:33:49,627 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-14 04:33:49,628 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-14 04:33:49,628 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-14 04:33:49,628 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-14 04:33:49,628 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-14 04:33:49,628 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-14 04:33:49,629 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-14 04:33:49,629 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-14 04:33:49,629 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-14 04:33:49,630 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-14 04:33:49,630 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-14 04:33:49,630 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-14 04:33:49,630 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-14 04:33:49,631 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-14 04:33:49,631 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-14 04:33:49,631 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-14 04:33:49,631 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-14 04:33:49,631 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-14 04:33:49,631 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-14 04:33:49,632 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 04:33:49,632 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-14 04:33:49,632 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-14 04:33:49,632 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-14 04:33:49,632 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-14 04:33:49,632 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-14 04:33:49,632 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-14 04:33:49,632 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-14 04:33:49,632 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-14 04:33:49,632 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_b7997319-db4d-47b0-96f4-10e58901f4bc/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 -> b88007960cae79b63604455924d89f4d8e6ff83730f3fe3600fe1cad3b333850 [2024-11-14 04:33:50,049 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-14 04:33:50,061 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-14 04:33:50,068 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-14 04:33:50,071 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-14 04:33:50,071 INFO L274 PluginConnector]: CDTParser initialized [2024-11-14 04:33:50,073 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7997319-db4d-47b0-96f4-10e58901f4bc/bin/utaipan-verify-sOmjnqqW8E/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_vsa16a_p5.c Unable to find full path for "g++" [2024-11-14 04:33:52,307 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-14 04:33:52,824 INFO L384 CDTParser]: Found 1 translation units. [2024-11-14 04:33:52,825 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7997319-db4d-47b0-96f4-10e58901f4bc/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_vsa16a_p5.c [2024-11-14 04:33:52,843 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7997319-db4d-47b0-96f4-10e58901f4bc/bin/utaipan-verify-sOmjnqqW8E/data/7a9a1c113/d01122ab05664541b531bb0a38919d3f/FLAG23bb87199 [2024-11-14 04:33:52,859 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7997319-db4d-47b0-96f4-10e58901f4bc/bin/utaipan-verify-sOmjnqqW8E/data/7a9a1c113/d01122ab05664541b531bb0a38919d3f [2024-11-14 04:33:52,861 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-14 04:33:52,863 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-14 04:33:52,865 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-14 04:33:52,865 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-14 04:33:52,870 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-14 04:33:52,871 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 04:33:52" (1/1) ... [2024-11-14 04:33:52,872 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6a08d795 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:33:52, skipping insertion in model container [2024-11-14 04:33:52,872 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 04:33:52" (1/1) ... [2024-11-14 04:33:52,940 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-14 04:33:53,228 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_b7997319-db4d-47b0-96f4-10e58901f4bc/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_vsa16a_p5.c[1260,1273] [2024-11-14 04:33:53,751 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 04:33:53,764 INFO L200 MainTranslator]: Completed pre-run [2024-11-14 04:33:53,776 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_b7997319-db4d-47b0-96f4-10e58901f4bc/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_vsa16a_p5.c[1260,1273] [2024-11-14 04:33:54,093 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 04:33:54,112 INFO L204 MainTranslator]: Completed translation [2024-11-14 04:33:54,113 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:33:54 WrapperNode [2024-11-14 04:33:54,116 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-14 04:33:54,117 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-14 04:33:54,117 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-14 04:33:54,117 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-14 04:33:54,127 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:33:54" (1/1) ... [2024-11-14 04:33:54,204 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:33:54" (1/1) ... [2024-11-14 04:33:54,809 INFO L138 Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 4514 [2024-11-14 04:33:54,809 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-14 04:33:54,810 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-14 04:33:54,810 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-14 04:33:54,810 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-14 04:33:54,819 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:33:54" (1/1) ... [2024-11-14 04:33:54,820 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:33:54" (1/1) ... [2024-11-14 04:33:55,042 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:33:54" (1/1) ... [2024-11-14 04:33:55,047 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:33:54" (1/1) ... [2024-11-14 04:33:55,268 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:33:54" (1/1) ... [2024-11-14 04:33:55,290 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:33:54" (1/1) ... [2024-11-14 04:33:55,343 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:33:54" (1/1) ... [2024-11-14 04:33:55,372 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:33:54" (1/1) ... [2024-11-14 04:33:55,516 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-14 04:33:55,518 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-14 04:33:55,519 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-14 04:33:55,519 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-14 04:33:55,520 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:33:54" (1/1) ... [2024-11-14 04:33:55,526 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 04:33:55,543 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7997319-db4d-47b0-96f4-10e58901f4bc/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 04:33:55,562 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7997319-db4d-47b0-96f4-10e58901f4bc/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-14 04:33:55,568 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7997319-db4d-47b0-96f4-10e58901f4bc/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-14 04:33:55,598 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-14 04:33:55,598 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-14 04:33:55,598 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-14 04:33:55,599 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-14 04:33:56,199 INFO L238 CfgBuilder]: Building ICFG [2024-11-14 04:33:56,201 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-14 04:34:03,359 INFO L? ?]: Removed 2689 outVars from TransFormulas that were not future-live. [2024-11-14 04:34:03,359 INFO L287 CfgBuilder]: Performing block encoding [2024-11-14 04:34:12,297 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-14 04:34:12,298 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-14 04:34:12,299 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 04:34:12 BoogieIcfgContainer [2024-11-14 04:34:12,299 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-14 04:34:12,302 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-14 04:34:12,302 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-14 04:34:12,306 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-14 04:34:12,306 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.11 04:33:52" (1/3) ... [2024-11-14 04:34:12,307 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2bc830fc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 04:34:12, skipping insertion in model container [2024-11-14 04:34:12,307 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:33:54" (2/3) ... [2024-11-14 04:34:12,309 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2bc830fc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 04:34:12, skipping insertion in model container [2024-11-14 04:34:12,309 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 04:34:12" (3/3) ... [2024-11-14 04:34:12,310 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.vis_arrays_vsa16a_p5.c [2024-11-14 04:34:12,330 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-14 04:34:12,332 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG btor2c-lazyMod.vis_arrays_vsa16a_p5.c that has 1 procedures, 7 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-14 04:34:12,404 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-14 04:34:12,425 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;@5af3b6d4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-14 04:34:12,426 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-14 04:34:12,433 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 04:34:12,439 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2024-11-14 04:34:12,439 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:34:12,440 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2024-11-14 04:34:12,442 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 04:34:12,447 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:34:12,449 INFO L85 PathProgramCache]: Analyzing trace with hash 197218719, now seen corresponding path program 1 times [2024-11-14 04:34:12,459 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:34:12,460 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1642804118] [2024-11-14 04:34:12,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:34:12,461 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:34:13,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-14 04:34:13,158 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-14 04:34:13,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-14 04:34:13,525 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2024-11-14 04:34:13,528 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-14 04:34:13,530 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-14 04:34:13,532 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-14 04:34:13,541 INFO L407 BasicCegarLoop]: Path program histogram: [1] [2024-11-14 04:34:13,588 INFO L173 ceAbstractionStarter]: Computing trace abstraction results [2024-11-14 04:34:13,592 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.11 04:34:13 BoogieIcfgContainer [2024-11-14 04:34:13,596 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-14 04:34:13,598 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-14 04:34:13,599 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-14 04:34:13,599 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-14 04:34:13,599 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 04:34:12" (3/4) ... [2024-11-14 04:34:13,603 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-14 04:34:13,605 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-14 04:34:13,608 INFO L158 Benchmark]: Toolchain (without parser) took 20742.92ms. Allocated memory was 142.6MB in the beginning and 1.5GB in the end (delta: 1.3GB). Free memory was 115.2MB in the beginning and 384.8MB in the end (delta: -269.6MB). Peak memory consumption was 1.1GB. Max. memory is 16.1GB. [2024-11-14 04:34:13,609 INFO L158 Benchmark]: CDTParser took 1.36ms. Allocated memory is still 142.6MB. Free memory is still 80.5MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 04:34:13,609 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1251.49ms. Allocated memory is still 142.6MB. Free memory was 115.0MB in the beginning and 83.3MB in the end (delta: 31.7MB). Peak memory consumption was 75.4MB. Max. memory is 16.1GB. [2024-11-14 04:34:13,610 INFO L158 Benchmark]: Boogie Procedure Inliner took 692.28ms. Allocated memory was 142.6MB in the beginning and 427.8MB in the end (delta: 285.2MB). Free memory was 83.3MB in the beginning and 288.4MB in the end (delta: -205.0MB). Peak memory consumption was 79.9MB. Max. memory is 16.1GB. [2024-11-14 04:34:13,611 INFO L158 Benchmark]: Boogie Preprocessor took 706.60ms. Allocated memory is still 427.8MB. Free memory was 288.4MB in the beginning and 288.0MB in the end (delta: 321.9kB). Peak memory consumption was 89.4MB. Max. memory is 16.1GB. [2024-11-14 04:34:13,611 INFO L158 Benchmark]: RCFGBuilder took 16780.99ms. Allocated memory was 427.8MB in the beginning and 1.5GB in the end (delta: 1.0GB). Free memory was 288.0MB in the beginning and 473.1MB in the end (delta: -185.1MB). Peak memory consumption was 905.9MB. Max. memory is 16.1GB. [2024-11-14 04:34:13,615 INFO L158 Benchmark]: TraceAbstraction took 1294.15ms. Allocated memory is still 1.5GB. Free memory was 472.7MB in the beginning and 384.8MB in the end (delta: 87.8MB). Peak memory consumption was 92.3MB. Max. memory is 16.1GB. [2024-11-14 04:34:13,615 INFO L158 Benchmark]: Witness Printer took 6.36ms. Allocated memory is still 1.5GB. Free memory is still 384.8MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 04:34:13,617 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 80.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1251.49ms. Allocated memory is still 142.6MB. Free memory was 115.0MB in the beginning and 83.3MB in the end (delta: 31.7MB). Peak memory consumption was 75.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 692.28ms. Allocated memory was 142.6MB in the beginning and 427.8MB in the end (delta: 285.2MB). Free memory was 83.3MB in the beginning and 288.4MB in the end (delta: -205.0MB). Peak memory consumption was 79.9MB. Max. memory is 16.1GB. * Boogie Preprocessor took 706.60ms. Allocated memory is still 427.8MB. Free memory was 288.4MB in the beginning and 288.0MB in the end (delta: 321.9kB). Peak memory consumption was 89.4MB. Max. memory is 16.1GB. * RCFGBuilder took 16780.99ms. Allocated memory was 427.8MB in the beginning and 1.5GB in the end (delta: 1.0GB). Free memory was 288.0MB in the beginning and 473.1MB in the end (delta: -185.1MB). Peak memory consumption was 905.9MB. Max. memory is 16.1GB. * TraceAbstraction took 1294.15ms. Allocated memory is still 1.5GB. Free memory was 472.7MB in the beginning and 384.8MB in the end (delta: 87.8MB). Peak memory consumption was 92.3MB. Max. memory is 16.1GB. * Witness Printer took 6.36ms. Allocated memory is still 1.5GB. Free memory is still 384.8MB. 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 bitwiseOr at line 201, overapproximation of bitwiseAnd at line 183, overapproximation of bitwiseAnd at line 118. 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_3 mask_SORT_3 = (SORT_3)-1 >> (sizeof(SORT_3) * 8 - 16); [L30] const SORT_3 msb_SORT_3 = (SORT_3)1 << (16 - 1); [L32] const SORT_9 mask_SORT_9 = (SORT_9)-1 >> (sizeof(SORT_9) * 8 - 3); [L33] const SORT_9 msb_SORT_9 = (SORT_9)1 << (3 - 1); [L35] const SORT_44 mask_SORT_44 = (SORT_44)-1 >> (sizeof(SORT_44) * 8 - 12); [L36] const SORT_44 msb_SORT_44 = (SORT_44)1 << (12 - 1); [L38] const SORT_98 mask_SORT_98 = (SORT_98)-1 >> (sizeof(SORT_98) * 8 - 17); [L39] const SORT_98 msb_SORT_98 = (SORT_98)1 << (17 - 1); [L41] const SORT_99 mask_SORT_99 = (SORT_99)-1 >> (sizeof(SORT_99) * 8 - 5); [L42] const SORT_99 msb_SORT_99 = (SORT_99)1 << (5 - 1); [L44] const SORT_102 mask_SORT_102 = (SORT_102)-1 >> (sizeof(SORT_102) * 8 - 9); [L45] const SORT_102 msb_SORT_102 = (SORT_102)1 << (9 - 1); [L47] const SORT_104 mask_SORT_104 = (SORT_104)-1 >> (sizeof(SORT_104) * 8 - 10); [L48] const SORT_104 msb_SORT_104 = (SORT_104)1 << (10 - 1); [L50] const SORT_107 mask_SORT_107 = (SORT_107)-1 >> (sizeof(SORT_107) * 8 - 11); [L51] const SORT_107 msb_SORT_107 = (SORT_107)1 << (11 - 1); [L53] const SORT_112 mask_SORT_112 = (SORT_112)-1 >> (sizeof(SORT_112) * 8 - 13); [L54] const SORT_112 msb_SORT_112 = (SORT_112)1 << (13 - 1); [L56] const SORT_115 mask_SORT_115 = (SORT_115)-1 >> (sizeof(SORT_115) * 8 - 14); [L57] const SORT_115 msb_SORT_115 = (SORT_115)1 << (14 - 1); [L59] const SORT_118 mask_SORT_118 = (SORT_118)-1 >> (sizeof(SORT_118) * 8 - 15); [L60] const SORT_118 msb_SORT_118 = (SORT_118)1 << (15 - 1); [L62] const SORT_151 mask_SORT_151 = (SORT_151)-1 >> (sizeof(SORT_151) * 8 - 7); [L63] const SORT_151 msb_SORT_151 = (SORT_151)1 << (7 - 1); [L65] const SORT_211 mask_SORT_211 = (SORT_211)-1 >> (sizeof(SORT_211) * 8 - 2); [L66] const SORT_211 msb_SORT_211 = (SORT_211)1 << (2 - 1); [L68] const SORT_370 mask_SORT_370 = (SORT_370)-1 >> (sizeof(SORT_370) * 8 - 4); [L69] const SORT_370 msb_SORT_370 = (SORT_370)1 << (4 - 1); [L71] const SORT_373 mask_SORT_373 = (SORT_373)-1 >> (sizeof(SORT_373) * 8 - 6); [L72] const SORT_373 msb_SORT_373 = (SORT_373)1 << (6 - 1); [L74] const SORT_376 mask_SORT_376 = (SORT_376)-1 >> (sizeof(SORT_376) * 8 - 8); [L75] const SORT_376 msb_SORT_376 = (SORT_376)1 << (8 - 1); [L77] const SORT_3 var_6 = 0; [L78] const SORT_9 var_11 = 2; [L79] const SORT_9 var_13 = 0; [L80] const SORT_1 var_19 = 0; [L81] const SORT_1 var_34 = 1; [L82] const SORT_44 var_45 = 0; [L83] const SORT_9 var_61 = 1; [L84] const SORT_9 var_66 = 4; [L85] const SORT_9 var_68 = 5; [L86] const SORT_9 var_72 = 3; [L87] const SORT_99 var_100 = 0; [L88] const SORT_151 var_153 = 5; [L89] const SORT_151 var_157 = 4; [L90] const SORT_151 var_161 = 3; [L91] const SORT_151 var_165 = 2; [L92] const SORT_151 var_169 = 1; [L93] const SORT_151 var_173 = 0; [L94] const SORT_44 var_196 = 2; [L95] const SORT_211 var_213 = 0; [L96] const SORT_3 var_220 = 65535; [L98] SORT_1 input_2; [L99] SORT_3 input_4; [L100] SORT_3 input_5; [L101] SORT_3 input_208; [L102] SORT_3 input_209; [L103] SORT_3 input_210; [L104] SORT_3 input_219; [L105] SORT_3 input_228; [L106] SORT_3 input_229; [L107] SORT_3 input_230; [L108] SORT_3 input_233; [L109] SORT_3 input_251; [L110] SORT_3 input_252; [L111] SORT_3 input_253; [L112] SORT_3 input_256; [L113] SORT_3 input_258; [L114] SORT_211 input_272; [L115] SORT_211 input_273; [L116] SORT_211 input_274; [L118] EXPR __VERIFIER_nondet_ushort() & mask_SORT_3 [L118] SORT_3 state_7 = __VERIFIER_nondet_ushort() & mask_SORT_3; [L119] EXPR __VERIFIER_nondet_uchar() & mask_SORT_9 [L119] SORT_9 state_14 = __VERIFIER_nondet_uchar() & mask_SORT_9; [L120] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L120] SORT_1 state_20 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L121] EXPR __VERIFIER_nondet_ushort() & mask_SORT_3 [L121] SORT_3 state_23 = __VERIFIER_nondet_ushort() & mask_SORT_3; [L122] EXPR __VERIFIER_nondet_ushort() & mask_SORT_3 [L122] SORT_3 state_38 = __VERIFIER_nondet_ushort() & mask_SORT_3; [L123] EXPR __VERIFIER_nondet_ushort() & mask_SORT_3 [L123] SORT_3 state_40 = __VERIFIER_nondet_ushort() & mask_SORT_3; [L124] EXPR __VERIFIER_nondet_ushort() & mask_SORT_3 [L124] SORT_3 state_42 = __VERIFIER_nondet_ushort() & mask_SORT_3; [L125] EXPR __VERIFIER_nondet_ushort() & mask_SORT_44 [L125] SORT_44 state_46 = __VERIFIER_nondet_ushort() & mask_SORT_44; [L126] EXPR __VERIFIER_nondet_ushort() & mask_SORT_44 [L126] SORT_44 state_48 = __VERIFIER_nondet_ushort() & mask_SORT_44; [L127] EXPR __VERIFIER_nondet_ushort() & mask_SORT_3 [L127] SORT_3 state_50 = __VERIFIER_nondet_ushort() & mask_SORT_3; [L128] EXPR __VERIFIER_nondet_ushort() & mask_SORT_3 [L128] SORT_3 state_52 = __VERIFIER_nondet_ushort() & mask_SORT_3; [L129] EXPR __VERIFIER_nondet_ushort() & mask_SORT_3 [L129] SORT_3 state_54 = __VERIFIER_nondet_ushort() & mask_SORT_3; [L130] EXPR __VERIFIER_nondet_ushort() & mask_SORT_3 [L130] SORT_3 state_56 = __VERIFIER_nondet_ushort() & mask_SORT_3; [L132] SORT_3 init_8_arg_1 = var_6; [L133] state_7 = init_8_arg_1 [L134] SORT_9 init_15_arg_1 = var_13; [L135] state_14 = init_15_arg_1 [L136] SORT_1 init_21_arg_1 = var_19; [L137] state_20 = init_21_arg_1 [L138] SORT_3 init_24_arg_1 = var_6; [L139] state_23 = init_24_arg_1 [L140] SORT_3 init_39_arg_1 = var_6; [L141] state_38 = init_39_arg_1 [L142] SORT_3 init_41_arg_1 = var_6; [L143] state_40 = init_41_arg_1 [L144] SORT_3 init_43_arg_1 = var_6; [L145] state_42 = init_43_arg_1 [L146] SORT_44 init_47_arg_1 = var_45; [L147] state_46 = init_47_arg_1 [L148] SORT_44 init_49_arg_1 = var_45; [L149] state_48 = init_49_arg_1 [L150] SORT_3 init_51_arg_1 = var_6; [L151] state_50 = init_51_arg_1 [L152] SORT_3 init_53_arg_1 = var_6; [L153] state_52 = init_53_arg_1 [L154] SORT_3 init_55_arg_1 = var_6; [L155] state_54 = init_55_arg_1 [L156] SORT_3 init_57_arg_1 = var_6; [L157] state_56 = init_57_arg_1 VAL [mask_SORT_102=511, mask_SORT_104=1023, mask_SORT_107=2047, mask_SORT_112=8191, mask_SORT_115=16383, mask_SORT_118=32767, mask_SORT_151=127, mask_SORT_1=1, mask_SORT_211=3, mask_SORT_370=15, mask_SORT_373=63, mask_SORT_376=255, mask_SORT_3=65535, mask_SORT_44=4095, mask_SORT_99=31, mask_SORT_9=7, state_14=0, state_20=0, state_23=0, state_38=0, state_40=0, state_42=0, state_46=0, state_48=0, state_50=0, state_52=0, state_54=0, state_56=0, state_7=0, var_100=0, var_11=2, var_13=0, var_153=5, var_157=4, var_161=3, var_165=2, var_169=1, var_173=0, var_196=2, var_19=0, var_213=0, var_220=65535, var_34=1, var_61=1, var_66=4, var_68=5, var_6=0, var_72=3] [L160] input_2 = __VERIFIER_nondet_uchar() [L161] input_4 = __VERIFIER_nondet_ushort() [L162] input_5 = __VERIFIER_nondet_ushort() [L163] input_208 = __VERIFIER_nondet_ushort() [L164] input_209 = __VERIFIER_nondet_ushort() [L165] input_210 = __VERIFIER_nondet_ushort() [L166] input_219 = __VERIFIER_nondet_ushort() [L167] input_228 = __VERIFIER_nondet_ushort() [L168] input_229 = __VERIFIER_nondet_ushort() [L169] input_230 = __VERIFIER_nondet_ushort() [L170] input_233 = __VERIFIER_nondet_ushort() [L171] input_251 = __VERIFIER_nondet_ushort() [L172] input_252 = __VERIFIER_nondet_ushort() [L173] input_253 = __VERIFIER_nondet_ushort() [L174] input_256 = __VERIFIER_nondet_ushort() [L175] input_258 = __VERIFIER_nondet_ushort() [L176] input_272 = __VERIFIER_nondet_uchar() [L177] input_273 = __VERIFIER_nondet_uchar() [L178] input_274 = __VERIFIER_nondet_uchar() [L181] SORT_3 var_10_arg_0 = state_7; [L182] SORT_9 var_10 = var_10_arg_0 >> 0; [L183] EXPR var_10 & mask_SORT_9 [L183] var_10 = var_10 & mask_SORT_9 [L184] SORT_9 var_12_arg_0 = var_10; [L185] SORT_9 var_12_arg_1 = var_11; [L186] SORT_1 var_12 = var_12_arg_0 == var_12_arg_1; [L187] SORT_9 var_16_arg_0 = state_14; [L188] SORT_1 var_16 = var_16_arg_0 >> 2; [L189] SORT_1 var_17_arg_0 = var_12; [L190] SORT_1 var_17_arg_1 = var_16; [L191] EXPR var_17_arg_0 & var_17_arg_1 [L191] SORT_1 var_17 = var_17_arg_0 & var_17_arg_1; [L192] SORT_1 var_18_arg_0 = var_17; [L193] SORT_1 var_18 = ~var_18_arg_0; [L194] SORT_1 var_22_arg_0 = state_20; [L195] SORT_1 var_22 = ~var_22_arg_0; [L196] SORT_3 var_25_arg_0 = state_23; [L197] SORT_3 var_25_arg_1 = var_6; [L198] SORT_1 var_25 = var_25_arg_0 == var_25_arg_1; [L199] SORT_1 var_26_arg_0 = var_22; [L200] SORT_1 var_26_arg_1 = var_25; [L201] EXPR var_26_arg_0 | var_26_arg_1 [L201] SORT_1 var_26 = var_26_arg_0 | var_26_arg_1; [L202] SORT_3 var_27_arg_0 = state_23; [L203] SORT_3 var_27_arg_1 = var_6; [L204] SORT_1 var_27 = var_27_arg_0 == var_27_arg_1; [L205] SORT_1 var_28_arg_0 = var_27; [L206] SORT_1 var_28 = ~var_28_arg_0; [L207] SORT_1 var_29_arg_0 = var_28; [L208] SORT_1 var_29_arg_1 = state_20; [L209] EXPR var_29_arg_0 | var_29_arg_1 [L209] SORT_1 var_29 = var_29_arg_0 | var_29_arg_1; [L210] SORT_1 var_30_arg_0 = var_26; [L211] SORT_1 var_30_arg_1 = var_29; [L212] EXPR var_30_arg_0 & var_30_arg_1 [L212] SORT_1 var_30 = var_30_arg_0 & var_30_arg_1; [L213] SORT_1 var_31_arg_0 = var_18; [L214] SORT_1 var_31_arg_1 = var_30; [L215] EXPR var_31_arg_0 | var_31_arg_1 [L215] SORT_1 var_31 = var_31_arg_0 | var_31_arg_1; [L216] SORT_1 var_35_arg_0 = var_31; [L217] SORT_1 var_35 = ~var_35_arg_0; [L218] SORT_1 var_36_arg_0 = var_34; [L219] SORT_1 var_36_arg_1 = var_35; [L220] EXPR var_36_arg_0 & var_36_arg_1 [L220] SORT_1 var_36 = var_36_arg_0 & var_36_arg_1; [L221] EXPR var_36 & mask_SORT_1 [L221] var_36 = var_36 & mask_SORT_1 [L222] SORT_1 bad_37_arg_0 = var_36; [L223] CALL __VERIFIER_assert(!(bad_37_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: 1.2s, 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 04:34:13,661 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7997319-db4d-47b0-96f4-10e58901f4bc/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with 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_b7997319-db4d-47b0-96f4-10e58901f4bc/bin/utaipan-verify-sOmjnqqW8E/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7997319-db4d-47b0-96f4-10e58901f4bc/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_b7997319-db4d-47b0-96f4-10e58901f4bc/bin/utaipan-verify-sOmjnqqW8E/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7997319-db4d-47b0-96f4-10e58901f4bc/bin/utaipan-verify-sOmjnqqW8E/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_vsa16a_p5.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7997319-db4d-47b0-96f4-10e58901f4bc/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_b7997319-db4d-47b0-96f4-10e58901f4bc/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 b88007960cae79b63604455924d89f4d8e6ff83730f3fe3600fe1cad3b333850 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-14 04:34:16,999 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-14 04:34:17,111 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7997319-db4d-47b0-96f4-10e58901f4bc/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2024-11-14 04:34:17,119 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-14 04:34:17,119 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-14 04:34:17,185 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-14 04:34:17,186 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-14 04:34:17,186 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-14 04:34:17,188 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-14 04:34:17,188 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-14 04:34:17,189 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-14 04:34:17,189 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-14 04:34:17,190 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-14 04:34:17,190 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-14 04:34:17,190 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-14 04:34:17,190 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-14 04:34:17,190 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-14 04:34:17,191 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-14 04:34:17,191 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-14 04:34:17,191 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-14 04:34:17,191 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-14 04:34:17,191 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-14 04:34:17,191 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-14 04:34:17,191 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-14 04:34:17,191 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-14 04:34:17,191 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-14 04:34:17,191 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-14 04:34:17,191 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-14 04:34:17,192 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-14 04:34:17,192 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-14 04:34:17,192 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-14 04:34:17,192 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-14 04:34:17,192 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 04:34:17,192 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-14 04:34:17,192 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-14 04:34:17,192 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-14 04:34:17,192 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2024-11-14 04:34:17,192 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-14 04:34:17,192 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-14 04:34:17,193 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-14 04:34:17,193 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_b7997319-db4d-47b0-96f4-10e58901f4bc/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 -> b88007960cae79b63604455924d89f4d8e6ff83730f3fe3600fe1cad3b333850 [2024-11-14 04:34:17,569 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-14 04:34:17,578 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-14 04:34:17,580 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-14 04:34:17,581 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-14 04:34:17,582 INFO L274 PluginConnector]: CDTParser initialized [2024-11-14 04:34:17,583 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7997319-db4d-47b0-96f4-10e58901f4bc/bin/utaipan-verify-sOmjnqqW8E/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_vsa16a_p5.c Unable to find full path for "g++" [2024-11-14 04:34:19,723 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-14 04:34:19,744 ERROR L? ?]: Error during toolchain job processing: java.lang.NullPointerException: Cannot invoke "String.equalsIgnoreCase(String)" because "kindStr" is null at org.eclipse.cdt.internal.core.model.PathEntry.kindFromString(PathEntry.java:80) at org.eclipse.cdt.internal.core.model.DefaultPathEntryStore.decodePathEntry(DefaultPathEntryStore.java:127) at org.eclipse.cdt.internal.core.model.DefaultPathEntryStore.getRawPathEntries(DefaultPathEntryStore.java:97) at org.eclipse.cdt.internal.core.model.PathEntryStoreProxy.getRawPathEntries(PathEntryStoreProxy.java:102) at org.eclipse.cdt.internal.core.model.PathEntryManager.getRawPathEntries(PathEntryManager.java:666) at org.eclipse.cdt.core.model.CoreModel.getRawPathEntries(CoreModel.java:937) at org.eclipse.cdt.core.model.CoreModel.oldIsScannerInformationEmpty(CoreModel.java:1307) at org.eclipse.cdt.core.model.CoreModel.isScannerInformationEmpty(CoreModel.java:1252) at org.eclipse.cdt.internal.core.pdom.indexer.ProjectIndexerInputAdapter.isFileBuildConfigured(ProjectIndexerInputAdapter.java:267) at org.eclipse.cdt.internal.core.pdom.AbstractIndexerTask.isRequiredInIndex(AbstractIndexerTask.java:748) at org.eclipse.cdt.internal.core.pdom.AbstractIndexerTask.extractFiles(AbstractIndexerTask.java:667) at org.eclipse.cdt.internal.core.pdom.AbstractIndexerTask.runTask(AbstractIndexerTask.java:558) at org.eclipse.cdt.internal.core.pdom.indexer.PDOMIndexerTask.run(PDOMIndexerTask.java:164) at org.eclipse.cdt.internal.core.pdom.PDOMIndexerJob.run(PDOMIndexerJob.java:160) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2024-11-14 04:34:20,208 INFO L384 CDTParser]: Found 1 translation units. [2024-11-14 04:34:20,212 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7997319-db4d-47b0-96f4-10e58901f4bc/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_vsa16a_p5.c [2024-11-14 04:34:20,248 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7997319-db4d-47b0-96f4-10e58901f4bc/bin/utaipan-verify-sOmjnqqW8E/data/8bca5f077/ab263e379ea94129919c60c8af4b91e0/FLAG9b7812b5f [2024-11-14 04:34:20,276 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7997319-db4d-47b0-96f4-10e58901f4bc/bin/utaipan-verify-sOmjnqqW8E/data/8bca5f077/ab263e379ea94129919c60c8af4b91e0 [2024-11-14 04:34:20,279 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-14 04:34:20,281 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-14 04:34:20,284 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-14 04:34:20,284 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-14 04:34:20,289 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-14 04:34:20,291 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 04:34:20" (1/1) ... [2024-11-14 04:34:20,292 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7727d317 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:34:20, skipping insertion in model container [2024-11-14 04:34:20,294 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 04:34:20" (1/1) ... [2024-11-14 04:34:20,377 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-14 04:34:20,649 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_b7997319-db4d-47b0-96f4-10e58901f4bc/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_vsa16a_p5.c[1260,1273] [2024-11-14 04:34:21,114 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 04:34:21,126 INFO L200 MainTranslator]: Completed pre-run [2024-11-14 04:34:21,137 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_b7997319-db4d-47b0-96f4-10e58901f4bc/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_vsa16a_p5.c[1260,1273] [2024-11-14 04:34:21,368 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 04:34:21,387 INFO L204 MainTranslator]: Completed translation [2024-11-14 04:34:21,388 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:34:21 WrapperNode [2024-11-14 04:34:21,389 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-14 04:34:21,391 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-14 04:34:21,391 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-14 04:34:21,392 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-14 04:34:21,401 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:34:21" (1/1) ... [2024-11-14 04:34:21,457 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:34:21" (1/1) ... [2024-11-14 04:34:21,618 INFO L138 Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1832 [2024-11-14 04:34:21,619 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-14 04:34:21,620 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-14 04:34:21,620 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-14 04:34:21,620 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-14 04:34:21,628 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:34:21" (1/1) ... [2024-11-14 04:34:21,629 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:34:21" (1/1) ... [2024-11-14 04:34:21,656 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:34:21" (1/1) ... [2024-11-14 04:34:21,656 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:34:21" (1/1) ... [2024-11-14 04:34:21,727 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:34:21" (1/1) ... [2024-11-14 04:34:21,733 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:34:21" (1/1) ... [2024-11-14 04:34:21,741 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:34:21" (1/1) ... [2024-11-14 04:34:21,749 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:34:21" (1/1) ... [2024-11-14 04:34:21,765 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-14 04:34:21,766 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-14 04:34:21,766 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-14 04:34:21,766 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-14 04:34:21,767 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:34:21" (1/1) ... [2024-11-14 04:34:21,784 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 04:34:21,804 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7997319-db4d-47b0-96f4-10e58901f4bc/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 04:34:21,819 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7997319-db4d-47b0-96f4-10e58901f4bc/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-14 04:34:21,825 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7997319-db4d-47b0-96f4-10e58901f4bc/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-14 04:34:21,854 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-14 04:34:21,855 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-11-14 04:34:21,855 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-14 04:34:21,855 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-14 04:34:22,421 INFO L238 CfgBuilder]: Building ICFG [2024-11-14 04:34:22,423 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-14 04:34:26,095 INFO L? ?]: Removed 94 outVars from TransFormulas that were not future-live. [2024-11-14 04:34:26,095 INFO L287 CfgBuilder]: Performing block encoding [2024-11-14 04:34:26,108 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-14 04:34:26,108 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-14 04:34:26,109 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 04:34:26 BoogieIcfgContainer [2024-11-14 04:34:26,109 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-14 04:34:26,113 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-14 04:34:26,113 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-14 04:34:26,127 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-14 04:34:26,127 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.11 04:34:20" (1/3) ... [2024-11-14 04:34:26,128 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@54c76a8c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 04:34:26, skipping insertion in model container [2024-11-14 04:34:26,128 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:34:21" (2/3) ... [2024-11-14 04:34:26,129 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@54c76a8c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 04:34:26, skipping insertion in model container [2024-11-14 04:34:26,129 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 04:34:26" (3/3) ... [2024-11-14 04:34:26,130 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.vis_arrays_vsa16a_p5.c [2024-11-14 04:34:26,151 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-14 04:34:26,155 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG btor2c-lazyMod.vis_arrays_vsa16a_p5.c that has 1 procedures, 10 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-14 04:34:26,224 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-14 04:34:26,242 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;@78e44213, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-14 04:34:26,242 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-14 04:34:26,249 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 04:34:26,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2024-11-14 04:34:26,257 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:34:26,258 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2024-11-14 04:34:26,258 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 04:34:26,265 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:34:26,266 INFO L85 PathProgramCache]: Analyzing trace with hash 28694789, now seen corresponding path program 1 times [2024-11-14 04:34:26,282 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 04:34:26,282 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1005115964] [2024-11-14 04:34:26,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:34:26,283 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 04:34:26,284 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7997319-db4d-47b0-96f4-10e58901f4bc/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 04:34:26,289 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7997319-db4d-47b0-96f4-10e58901f4bc/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 04:34:26,291 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7997319-db4d-47b0-96f4-10e58901f4bc/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 04:34:26,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:34:26,928 INFO L255 TraceCheckSpWp]: Trace formula consists of 136 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-11-14 04:34:26,942 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:34:27,297 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 04:34:27,297 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 04:34:27,300 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 04:34:27,300 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1005115964] [2024-11-14 04:34:27,301 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1005115964] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 04:34:27,301 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 04:34:27,301 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-14 04:34:27,305 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [464450273] [2024-11-14 04:34:27,305 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:34:27,309 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-14 04:34:27,310 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 04:34:27,331 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-14 04:34:27,332 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-14 04:34:27,334 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 04:34:27,541 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:34:27,542 INFO L93 Difference]: Finished difference Result 18 states and 23 transitions. [2024-11-14 04:34:27,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-14 04:34:27,545 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 04:34:27,548 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:34:27,556 INFO L225 Difference]: With dead ends: 18 [2024-11-14 04:34:27,557 INFO L226 Difference]: Without dead ends: 10 [2024-11-14 04:34:27,561 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-14 04:34:27,567 INFO L432 NwaCegarLoop]: 4 mSDtfsCounter, 2 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 11 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-14 04:34:27,568 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 11 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-14 04:34:27,585 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states. [2024-11-14 04:34:27,597 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 9. [2024-11-14 04:34:27,599 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 04:34:27,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2024-11-14 04:34:27,607 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 5 [2024-11-14 04:34:27,607 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:34:27,607 INFO L471 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2024-11-14 04:34:27,608 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 04:34:27,608 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2024-11-14 04:34:27,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-14 04:34:27,608 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:34:27,608 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2024-11-14 04:34:27,613 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7997319-db4d-47b0-96f4-10e58901f4bc/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 04:34:27,812 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7997319-db4d-47b0-96f4-10e58901f4bc/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 04:34:27,812 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 04:34:27,812 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:34:27,813 INFO L85 PathProgramCache]: Analyzing trace with hash 152739811, now seen corresponding path program 1 times [2024-11-14 04:34:27,814 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 04:34:27,815 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [91252065] [2024-11-14 04:34:27,815 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:34:27,815 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 04:34:27,815 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7997319-db4d-47b0-96f4-10e58901f4bc/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 04:34:27,820 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7997319-db4d-47b0-96f4-10e58901f4bc/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 04:34:27,821 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7997319-db4d-47b0-96f4-10e58901f4bc/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 04:34:28,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:34:28,849 INFO L255 TraceCheckSpWp]: Trace formula consists of 192 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-11-14 04:34:28,863 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:34:29,077 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 04:34:29,077 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 04:34:29,417 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 04:34:29,418 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 04:34:29,418 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [91252065] [2024-11-14 04:34:29,418 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [91252065] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 04:34:29,418 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [66549762] [2024-11-14 04:34:29,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:34:29,418 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-14 04:34:29,418 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7997319-db4d-47b0-96f4-10e58901f4bc/bin/utaipan-verify-sOmjnqqW8E/cvc4 [2024-11-14 04:34:29,425 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7997319-db4d-47b0-96f4-10e58901f4bc/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-14 04:34:29,427 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7997319-db4d-47b0-96f4-10e58901f4bc/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2024-11-14 04:34:30,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:34:30,812 INFO L255 TraceCheckSpWp]: Trace formula consists of 192 conjuncts, 26 conjuncts are in the unsatisfiable core [2024-11-14 04:34:30,829 INFO L278 TraceCheckSpWp]: Computing forward predicates...