./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.noninitstate.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_74e43ddc-30fa-41a4-ba84-699aec8c2ef1/bin/utaipan-verify-sOmjnqqW8E/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74e43ddc-30fa-41a4-ba84-699aec8c2ef1/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_74e43ddc-30fa-41a4-ba84-699aec8c2ef1/bin/utaipan-verify-sOmjnqqW8E/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74e43ddc-30fa-41a4-ba84-699aec8c2ef1/bin/utaipan-verify-sOmjnqqW8E/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.noninitstate.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74e43ddc-30fa-41a4-ba84-699aec8c2ef1/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_74e43ddc-30fa-41a4-ba84-699aec8c2ef1/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 cb35da9c160c8cc3a4e8eb0847ad52031566203029d285a75392d741632a8daa --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-14 02:45:03,334 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-14 02:45:03,431 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74e43ddc-30fa-41a4-ba84-699aec8c2ef1/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-Reach-64bit-Taipan_Default.epf [2024-11-14 02:45:03,439 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-14 02:45:03,440 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-14 02:45:03,471 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-14 02:45:03,472 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-14 02:45:03,472 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-14 02:45:03,472 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-14 02:45:03,472 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-14 02:45:03,473 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-14 02:45:03,473 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-14 02:45:03,473 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-14 02:45:03,473 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-14 02:45:03,473 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-14 02:45:03,473 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-14 02:45:03,473 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-14 02:45:03,474 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-14 02:45:03,474 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-14 02:45:03,474 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-14 02:45:03,474 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-14 02:45:03,474 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-14 02:45:03,475 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-14 02:45:03,475 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-14 02:45:03,475 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-14 02:45:03,475 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-14 02:45:03,475 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-14 02:45:03,475 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-14 02:45:03,475 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-14 02:45:03,475 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-14 02:45:03,475 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-14 02:45:03,476 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-14 02:45:03,476 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-14 02:45:03,476 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-14 02:45:03,476 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-14 02:45:03,476 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 02:45:03,476 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-14 02:45:03,476 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-14 02:45:03,476 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-14 02:45:03,476 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-14 02:45:03,476 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-14 02:45:03,476 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-14 02:45:03,477 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-14 02:45:03,477 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-14 02:45:03,478 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_74e43ddc-30fa-41a4-ba84-699aec8c2ef1/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 -> cb35da9c160c8cc3a4e8eb0847ad52031566203029d285a75392d741632a8daa [2024-11-14 02:45:03,820 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-14 02:45:03,828 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-14 02:45:03,831 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-14 02:45:03,833 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-14 02:45:03,833 INFO L274 PluginConnector]: CDTParser initialized [2024-11-14 02:45:03,834 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74e43ddc-30fa-41a4-ba84-699aec8c2ef1/bin/utaipan-verify-sOmjnqqW8E/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.noninitstate.c Unable to find full path for "g++" [2024-11-14 02:45:05,781 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-14 02:45:06,037 INFO L384 CDTParser]: Found 1 translation units. [2024-11-14 02:45:06,037 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74e43ddc-30fa-41a4-ba84-699aec8c2ef1/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.noninitstate.c [2024-11-14 02:45:06,045 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74e43ddc-30fa-41a4-ba84-699aec8c2ef1/bin/utaipan-verify-sOmjnqqW8E/data/962b44d67/596aed9543014585b800a194d927acee/FLAG375740da0 [2024-11-14 02:45:06,060 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74e43ddc-30fa-41a4-ba84-699aec8c2ef1/bin/utaipan-verify-sOmjnqqW8E/data/962b44d67/596aed9543014585b800a194d927acee [2024-11-14 02:45:06,062 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-14 02:45:06,064 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-14 02:45:06,065 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-14 02:45:06,065 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-14 02:45:06,070 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-14 02:45:06,071 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 02:45:06" (1/1) ... [2024-11-14 02:45:06,072 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5313d1e0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 02:45:06, skipping insertion in model container [2024-11-14 02:45:06,072 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 02:45:06" (1/1) ... [2024-11-14 02:45:06,089 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-14 02:45:06,286 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_74e43ddc-30fa-41a4-ba84-699aec8c2ef1/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.noninitstate.c[1262,1275] [2024-11-14 02:45:06,342 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 02:45:06,357 INFO L200 MainTranslator]: Completed pre-run [2024-11-14 02:45:06,371 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_74e43ddc-30fa-41a4-ba84-699aec8c2ef1/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.noninitstate.c[1262,1275] [2024-11-14 02:45:06,410 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 02:45:06,430 INFO L204 MainTranslator]: Completed translation [2024-11-14 02:45:06,431 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 02:45:06 WrapperNode [2024-11-14 02:45:06,432 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-14 02:45:06,433 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-14 02:45:06,433 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-14 02:45:06,433 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-14 02:45:06,445 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 02:45:06" (1/1) ... [2024-11-14 02:45:06,461 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 02:45:06" (1/1) ... [2024-11-14 02:45:06,517 INFO L138 Inliner]: procedures = 17, calls = 9, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 151 [2024-11-14 02:45:06,518 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-14 02:45:06,518 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-14 02:45:06,518 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-14 02:45:06,518 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-14 02:45:06,527 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 02:45:06" (1/1) ... [2024-11-14 02:45:06,528 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 02:45:06" (1/1) ... [2024-11-14 02:45:06,531 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 02:45:06" (1/1) ... [2024-11-14 02:45:06,532 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 02:45:06" (1/1) ... [2024-11-14 02:45:06,542 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 02:45:06" (1/1) ... [2024-11-14 02:45:06,546 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 02:45:06" (1/1) ... [2024-11-14 02:45:06,550 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 02:45:06" (1/1) ... [2024-11-14 02:45:06,552 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 02:45:06" (1/1) ... [2024-11-14 02:45:06,558 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-14 02:45:06,558 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-14 02:45:06,559 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-14 02:45:06,559 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-14 02:45:06,560 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 02:45:06" (1/1) ... [2024-11-14 02:45:06,566 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 02:45:06,581 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74e43ddc-30fa-41a4-ba84-699aec8c2ef1/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 02:45:06,605 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74e43ddc-30fa-41a4-ba84-699aec8c2ef1/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-14 02:45:06,611 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74e43ddc-30fa-41a4-ba84-699aec8c2ef1/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-14 02:45:06,643 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-14 02:45:06,643 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-14 02:45:06,643 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-14 02:45:06,643 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-14 02:45:06,739 INFO L238 CfgBuilder]: Building ICFG [2024-11-14 02:45:06,742 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-14 02:45:07,199 INFO L? ?]: Removed 62 outVars from TransFormulas that were not future-live. [2024-11-14 02:45:07,199 INFO L287 CfgBuilder]: Performing block encoding [2024-11-14 02:45:07,500 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-14 02:45:07,500 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-14 02:45:07,500 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 02:45:07 BoogieIcfgContainer [2024-11-14 02:45:07,500 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-14 02:45:07,505 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-14 02:45:07,505 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-14 02:45:07,510 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-14 02:45:07,510 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.11 02:45:06" (1/3) ... [2024-11-14 02:45:07,511 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@34d4de5e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 02:45:07, skipping insertion in model container [2024-11-14 02:45:07,511 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 02:45:06" (2/3) ... [2024-11-14 02:45:07,511 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@34d4de5e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 02:45:07, skipping insertion in model container [2024-11-14 02:45:07,512 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 02:45:07" (3/3) ... [2024-11-14 02:45:07,514 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.noninitstate.c [2024-11-14 02:45:07,531 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-14 02:45:07,533 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG btor2c-lazyMod.noninitstate.c that has 1 procedures, 7 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-14 02:45:07,585 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-14 02:45:07,597 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;@601fe7f7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-14 02:45:07,598 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-14 02:45:07,601 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 02:45:07,607 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2024-11-14 02:45:07,607 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 02:45:07,607 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2024-11-14 02:45:07,608 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 02:45:07,612 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 02:45:07,613 INFO L85 PathProgramCache]: Analyzing trace with hash 7793421, now seen corresponding path program 1 times [2024-11-14 02:45:07,620 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 02:45:07,621 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [555099241] [2024-11-14 02:45:07,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 02:45:07,622 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 02:45:07,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-14 02:45:07,788 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-14 02:45:07,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-14 02:45:07,899 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2024-11-14 02:45:07,901 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-14 02:45:07,903 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-14 02:45:07,906 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-14 02:45:07,910 INFO L407 BasicCegarLoop]: Path program histogram: [1] [2024-11-14 02:45:07,936 INFO L173 ceAbstractionStarter]: Computing trace abstraction results [2024-11-14 02:45:07,941 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.11 02:45:07 BoogieIcfgContainer [2024-11-14 02:45:07,941 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-14 02:45:07,942 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-14 02:45:07,942 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-14 02:45:07,942 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-14 02:45:07,943 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 02:45:07" (3/4) ... [2024-11-14 02:45:07,946 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-14 02:45:07,947 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-14 02:45:07,949 INFO L158 Benchmark]: Toolchain (without parser) took 1884.24ms. Allocated memory is still 117.4MB. Free memory was 92.1MB in the beginning and 53.4MB in the end (delta: 38.8MB). Peak memory consumption was 38.6MB. Max. memory is 16.1GB. [2024-11-14 02:45:07,949 INFO L158 Benchmark]: CDTParser took 0.44ms. Allocated memory is still 83.9MB. Free memory was 41.1MB in the beginning and 41.0MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 02:45:07,950 INFO L158 Benchmark]: CACSL2BoogieTranslator took 367.00ms. Allocated memory is still 117.4MB. Free memory was 91.7MB in the beginning and 79.8MB in the end (delta: 12.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-14 02:45:07,950 INFO L158 Benchmark]: Boogie Procedure Inliner took 84.88ms. Allocated memory is still 117.4MB. Free memory was 79.8MB in the beginning and 75.7MB in the end (delta: 4.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-14 02:45:07,950 INFO L158 Benchmark]: Boogie Preprocessor took 39.58ms. Allocated memory is still 117.4MB. Free memory was 75.7MB in the beginning and 74.0MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 02:45:07,951 INFO L158 Benchmark]: RCFGBuilder took 942.07ms. Allocated memory is still 117.4MB. Free memory was 74.0MB in the beginning and 71.8MB in the end (delta: 2.2MB). Peak memory consumption was 47.0MB. Max. memory is 16.1GB. [2024-11-14 02:45:07,951 INFO L158 Benchmark]: TraceAbstraction took 436.46ms. Allocated memory is still 117.4MB. Free memory was 71.8MB in the beginning and 54.1MB in the end (delta: 17.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-14 02:45:07,952 INFO L158 Benchmark]: Witness Printer took 5.20ms. Allocated memory is still 117.4MB. Free memory was 54.1MB in the beginning and 53.4MB in the end (delta: 723.5kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 02:45:07,956 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.44ms. Allocated memory is still 83.9MB. Free memory was 41.1MB in the beginning and 41.0MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 367.00ms. Allocated memory is still 117.4MB. Free memory was 91.7MB in the beginning and 79.8MB in the end (delta: 12.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 84.88ms. Allocated memory is still 117.4MB. Free memory was 79.8MB in the beginning and 75.7MB in the end (delta: 4.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 39.58ms. Allocated memory is still 117.4MB. Free memory was 75.7MB in the beginning and 74.0MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 942.07ms. Allocated memory is still 117.4MB. Free memory was 74.0MB in the beginning and 71.8MB in the end (delta: 2.2MB). Peak memory consumption was 47.0MB. Max. memory is 16.1GB. * TraceAbstraction took 436.46ms. Allocated memory is still 117.4MB. Free memory was 71.8MB in the beginning and 54.1MB in the end (delta: 17.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Witness Printer took 5.20ms. Allocated memory is still 117.4MB. Free memory was 54.1MB in the beginning and 53.4MB in the end (delta: 723.5kB). 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: 22]: 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 35, overapproximation of bitwiseAnd at line 44. Possible FailurePath: [L27] const SORT_1 mask_SORT_1 = (SORT_1)-1 >> (sizeof(SORT_1) * 8 - 1); [L28] const SORT_1 msb_SORT_1 = (SORT_1)1 << (1 - 1); [L30] const SORT_1 var_10 = 1; [L31] const SORT_1 var_13 = 0; [L33] SORT_1 input_2; [L35] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L35] SORT_1 state_3 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L36] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L36] SORT_1 state_4 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L37] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L37] SORT_1 state_11 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L39] SORT_1 init_12_arg_1 = var_10; [L40] state_11 = init_12_arg_1 VAL [mask_SORT_1=1, state_11=1, state_3=0, state_4=0, var_13=0] [L43] input_2 = __VERIFIER_nondet_uchar() [L44] EXPR input_2 & mask_SORT_1 [L44] input_2 = input_2 & mask_SORT_1 [L46] SORT_1 var_9_arg_0 = state_3; [L47] SORT_1 var_9_arg_1 = state_4; [L48] SORT_1 var_9 = var_9_arg_0 == var_9_arg_1; [L49] SORT_1 var_15_arg_0 = state_11; [L50] SORT_1 var_15_arg_1 = ~var_9; [L51] EXPR var_15_arg_1 & mask_SORT_1 [L51] var_15_arg_1 = var_15_arg_1 & mask_SORT_1 [L52] SORT_1 var_15 = !var_15_arg_0 || var_15_arg_1; [L53] SORT_1 constr_16_arg_0 = var_15; [L54] CALL assume_abort_if_not(constr_16_arg_0) [L23] COND FALSE !(!cond) [L54] RET assume_abort_if_not(constr_16_arg_0) [L56] SORT_1 bad_17_arg_0 = var_9; [L57] CALL __VERIFIER_assert(!(bad_17_arg_0)) [L22] COND TRUE !(cond) [L22] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 7 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.3s, 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, 0.1s 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 02:45:07,993 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74e43ddc-30fa-41a4-ba84-699aec8c2ef1/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_74e43ddc-30fa-41a4-ba84-699aec8c2ef1/bin/utaipan-verify-sOmjnqqW8E/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74e43ddc-30fa-41a4-ba84-699aec8c2ef1/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_74e43ddc-30fa-41a4-ba84-699aec8c2ef1/bin/utaipan-verify-sOmjnqqW8E/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74e43ddc-30fa-41a4-ba84-699aec8c2ef1/bin/utaipan-verify-sOmjnqqW8E/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.noninitstate.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74e43ddc-30fa-41a4-ba84-699aec8c2ef1/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_74e43ddc-30fa-41a4-ba84-699aec8c2ef1/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 cb35da9c160c8cc3a4e8eb0847ad52031566203029d285a75392d741632a8daa --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-14 02:45:10,883 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-14 02:45:10,983 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74e43ddc-30fa-41a4-ba84-699aec8c2ef1/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2024-11-14 02:45:10,989 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-14 02:45:10,990 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-14 02:45:11,055 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-14 02:45:11,061 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-14 02:45:11,062 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-14 02:45:11,063 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-14 02:45:11,066 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-14 02:45:11,067 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-14 02:45:11,067 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-14 02:45:11,068 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-14 02:45:11,068 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-14 02:45:11,068 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-14 02:45:11,068 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-14 02:45:11,069 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-14 02:45:11,069 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-14 02:45:11,069 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-14 02:45:11,069 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-14 02:45:11,070 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-14 02:45:11,070 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-14 02:45:11,070 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-14 02:45:11,070 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-14 02:45:11,070 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-14 02:45:11,070 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-14 02:45:11,070 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-14 02:45:11,070 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-14 02:45:11,070 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-14 02:45:11,071 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-14 02:45:11,071 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-14 02:45:11,071 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-14 02:45:11,071 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 02:45:11,071 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-14 02:45:11,072 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-14 02:45:11,072 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-14 02:45:11,072 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2024-11-14 02:45:11,072 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-14 02:45:11,072 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-14 02:45:11,072 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-14 02:45:11,073 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_74e43ddc-30fa-41a4-ba84-699aec8c2ef1/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 -> cb35da9c160c8cc3a4e8eb0847ad52031566203029d285a75392d741632a8daa [2024-11-14 02:45:11,414 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-14 02:45:11,424 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-14 02:45:11,427 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-14 02:45:11,428 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-14 02:45:11,429 INFO L274 PluginConnector]: CDTParser initialized [2024-11-14 02:45:11,430 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74e43ddc-30fa-41a4-ba84-699aec8c2ef1/bin/utaipan-verify-sOmjnqqW8E/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.noninitstate.c Unable to find full path for "g++" [2024-11-14 02:45:13,595 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-14 02:45:13,940 INFO L384 CDTParser]: Found 1 translation units. [2024-11-14 02:45:13,940 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74e43ddc-30fa-41a4-ba84-699aec8c2ef1/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.noninitstate.c [2024-11-14 02:45:13,962 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74e43ddc-30fa-41a4-ba84-699aec8c2ef1/bin/utaipan-verify-sOmjnqqW8E/data/79428b081/49bb41356b1e4c64ae3b21f0ea169e42/FLAG858b5bd36 [2024-11-14 02:45:13,990 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74e43ddc-30fa-41a4-ba84-699aec8c2ef1/bin/utaipan-verify-sOmjnqqW8E/data/79428b081/49bb41356b1e4c64ae3b21f0ea169e42 [2024-11-14 02:45:13,992 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-14 02:45:13,994 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-14 02:45:13,997 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-14 02:45:13,997 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-14 02:45:14,003 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-14 02:45:14,005 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 02:45:13" (1/1) ... [2024-11-14 02:45:14,008 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3badbe1d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 02:45:14, skipping insertion in model container [2024-11-14 02:45:14,008 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 02:45:13" (1/1) ... [2024-11-14 02:45:14,029 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-14 02:45:14,226 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_74e43ddc-30fa-41a4-ba84-699aec8c2ef1/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.noninitstate.c[1262,1275] [2024-11-14 02:45:14,277 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 02:45:14,294 INFO L200 MainTranslator]: Completed pre-run [2024-11-14 02:45:14,311 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_74e43ddc-30fa-41a4-ba84-699aec8c2ef1/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.noninitstate.c[1262,1275] [2024-11-14 02:45:14,347 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 02:45:14,368 INFO L204 MainTranslator]: Completed translation [2024-11-14 02:45:14,368 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 02:45:14 WrapperNode [2024-11-14 02:45:14,368 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-14 02:45:14,370 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-14 02:45:14,370 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-14 02:45:14,370 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-14 02:45:14,380 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 02:45:14" (1/1) ... [2024-11-14 02:45:14,392 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 02:45:14" (1/1) ... [2024-11-14 02:45:14,419 INFO L138 Inliner]: procedures = 17, calls = 9, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 71 [2024-11-14 02:45:14,419 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-14 02:45:14,424 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-14 02:45:14,425 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-14 02:45:14,425 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-14 02:45:14,434 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 02:45:14" (1/1) ... [2024-11-14 02:45:14,434 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 02:45:14" (1/1) ... [2024-11-14 02:45:14,436 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 02:45:14" (1/1) ... [2024-11-14 02:45:14,437 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 02:45:14" (1/1) ... [2024-11-14 02:45:14,442 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 02:45:14" (1/1) ... [2024-11-14 02:45:14,446 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 02:45:14" (1/1) ... [2024-11-14 02:45:14,447 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 02:45:14" (1/1) ... [2024-11-14 02:45:14,448 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 02:45:14" (1/1) ... [2024-11-14 02:45:14,450 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-14 02:45:14,451 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-14 02:45:14,451 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-14 02:45:14,451 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-14 02:45:14,452 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 02:45:14" (1/1) ... [2024-11-14 02:45:14,459 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 02:45:14,475 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74e43ddc-30fa-41a4-ba84-699aec8c2ef1/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 02:45:14,489 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74e43ddc-30fa-41a4-ba84-699aec8c2ef1/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-14 02:45:14,494 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74e43ddc-30fa-41a4-ba84-699aec8c2ef1/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-14 02:45:14,524 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-14 02:45:14,525 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-11-14 02:45:14,525 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-14 02:45:14,525 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-14 02:45:14,599 INFO L238 CfgBuilder]: Building ICFG [2024-11-14 02:45:14,601 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-14 02:45:14,804 INFO L? ?]: Removed 20 outVars from TransFormulas that were not future-live. [2024-11-14 02:45:14,804 INFO L287 CfgBuilder]: Performing block encoding [2024-11-14 02:45:14,821 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-14 02:45:14,822 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-14 02:45:14,823 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 02:45:14 BoogieIcfgContainer [2024-11-14 02:45:14,823 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-14 02:45:14,826 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-14 02:45:14,826 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-14 02:45:14,831 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-14 02:45:14,832 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.11 02:45:13" (1/3) ... [2024-11-14 02:45:14,832 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7390076c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 02:45:14, skipping insertion in model container [2024-11-14 02:45:14,833 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 02:45:14" (2/3) ... [2024-11-14 02:45:14,833 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7390076c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 02:45:14, skipping insertion in model container [2024-11-14 02:45:14,833 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 02:45:14" (3/3) ... [2024-11-14 02:45:14,834 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.noninitstate.c [2024-11-14 02:45:14,852 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-14 02:45:14,854 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG btor2c-lazyMod.noninitstate.c that has 1 procedures, 12 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-14 02:45:14,916 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-14 02:45:14,930 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;@389169c3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-14 02:45:14,931 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-14 02:45:14,935 INFO L276 IsEmpty]: Start isEmpty. Operand has 12 states, 10 states have (on average 1.4) internal successors, (14), 11 states have internal predecessors, (14), 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 02:45:14,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-11-14 02:45:14,942 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 02:45:14,943 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-14 02:45:14,944 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 02:45:14,949 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 02:45:14,950 INFO L85 PathProgramCache]: Analyzing trace with hash 1805890889, now seen corresponding path program 1 times [2024-11-14 02:45:14,962 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 02:45:14,963 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [120839391] [2024-11-14 02:45:14,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 02:45:14,963 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 02:45:14,964 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74e43ddc-30fa-41a4-ba84-699aec8c2ef1/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 02:45:14,966 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74e43ddc-30fa-41a4-ba84-699aec8c2ef1/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 02:45:14,973 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74e43ddc-30fa-41a4-ba84-699aec8c2ef1/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 02:45:15,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 02:45:15,113 INFO L255 TraceCheckSpWp]: Trace formula consists of 36 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-14 02:45:15,117 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 02:45:15,138 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 02:45:15,138 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 02:45:15,139 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 02:45:15,139 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [120839391] [2024-11-14 02:45:15,140 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [120839391] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 02:45:15,140 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 02:45:15,144 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-14 02:45:15,146 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [506065530] [2024-11-14 02:45:15,147 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 02:45:15,151 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-14 02:45:15,153 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 02:45:15,177 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-14 02:45:15,178 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-14 02:45:15,180 INFO L87 Difference]: Start difference. First operand has 12 states, 10 states have (on average 1.4) internal successors, (14), 11 states have internal predecessors, (14), 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 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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 02:45:15,193 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 02:45:15,193 INFO L93 Difference]: Finished difference Result 19 states and 24 transitions. [2024-11-14 02:45:15,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-14 02:45:15,196 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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 7 [2024-11-14 02:45:15,197 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 02:45:15,205 INFO L225 Difference]: With dead ends: 19 [2024-11-14 02:45:15,205 INFO L226 Difference]: Without dead ends: 9 [2024-11-14 02:45:15,212 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-14 02:45:15,220 INFO L432 NwaCegarLoop]: 9 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 9 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-14 02:45:15,221 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-14 02:45:15,243 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2024-11-14 02:45:15,253 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2024-11-14 02:45:15,255 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 02:45:15,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2024-11-14 02:45:15,266 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 7 [2024-11-14 02:45:15,266 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 02:45:15,266 INFO L471 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2024-11-14 02:45:15,266 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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 02:45:15,267 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2024-11-14 02:45:15,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-11-14 02:45:15,267 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 02:45:15,267 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-14 02:45:15,272 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74e43ddc-30fa-41a4-ba84-699aec8c2ef1/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 02:45:15,468 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74e43ddc-30fa-41a4-ba84-699aec8c2ef1/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 02:45:15,469 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 02:45:15,469 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 02:45:15,471 INFO L85 PathProgramCache]: Analyzing trace with hash 1805950471, now seen corresponding path program 1 times [2024-11-14 02:45:15,471 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 02:45:15,472 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [169499796] [2024-11-14 02:45:15,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 02:45:15,472 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 02:45:15,474 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74e43ddc-30fa-41a4-ba84-699aec8c2ef1/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 02:45:15,479 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74e43ddc-30fa-41a4-ba84-699aec8c2ef1/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 02:45:15,483 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74e43ddc-30fa-41a4-ba84-699aec8c2ef1/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 02:45:15,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 02:45:15,563 INFO L255 TraceCheckSpWp]: Trace formula consists of 36 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-14 02:45:15,574 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 02:45:15,943 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 02:45:15,943 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 02:45:15,944 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 02:45:15,944 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [169499796] [2024-11-14 02:45:15,944 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [169499796] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 02:45:15,944 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 02:45:15,944 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-14 02:45:15,944 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1065425153] [2024-11-14 02:45:15,944 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 02:45:15,945 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-14 02:45:15,946 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 02:45:15,946 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-14 02:45:15,946 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-14 02:45:15,947 INFO L87 Difference]: Start difference. First operand 9 states and 9 transitions. Second operand has 6 states, 6 states have (on average 1.1666666666666667) internal successors, (7), 6 states have internal predecessors, (7), 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 02:45:15,999 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 02:45:15,999 INFO L93 Difference]: Finished difference Result 15 states and 15 transitions. [2024-11-14 02:45:16,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-14 02:45:16,001 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 1.1666666666666667) internal successors, (7), 6 states have internal predecessors, (7), 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 7 [2024-11-14 02:45:16,001 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 02:45:16,001 INFO L225 Difference]: With dead ends: 15 [2024-11-14 02:45:16,001 INFO L226 Difference]: Without dead ends: 13 [2024-11-14 02:45:16,001 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-14 02:45:16,002 INFO L432 NwaCegarLoop]: 5 mSDtfsCounter, 0 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 18 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-14 02:45:16,003 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 18 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-14 02:45:16,003 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2024-11-14 02:45:16,008 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2024-11-14 02:45:16,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 12 states have (on average 1.0833333333333333) internal successors, (13), 12 states have internal predecessors, (13), 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 02:45:16,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 13 transitions. [2024-11-14 02:45:16,009 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 13 transitions. Word has length 7 [2024-11-14 02:45:16,009 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 02:45:16,009 INFO L471 AbstractCegarLoop]: Abstraction has 13 states and 13 transitions. [2024-11-14 02:45:16,009 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 1.1666666666666667) internal successors, (7), 6 states have internal predecessors, (7), 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 02:45:16,009 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 13 transitions. [2024-11-14 02:45:16,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-11-14 02:45:16,010 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 02:45:16,010 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1] [2024-11-14 02:45:16,012 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74e43ddc-30fa-41a4-ba84-699aec8c2ef1/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2024-11-14 02:45:16,210 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74e43ddc-30fa-41a4-ba84-699aec8c2ef1/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 02:45:16,211 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 02:45:16,211 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 02:45:16,211 INFO L85 PathProgramCache]: Analyzing trace with hash -169791069, now seen corresponding path program 1 times [2024-11-14 02:45:16,212 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 02:45:16,212 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1660655380] [2024-11-14 02:45:16,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 02:45:16,212 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 02:45:16,212 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74e43ddc-30fa-41a4-ba84-699aec8c2ef1/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 02:45:16,216 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74e43ddc-30fa-41a4-ba84-699aec8c2ef1/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 02:45:16,218 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74e43ddc-30fa-41a4-ba84-699aec8c2ef1/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2024-11-14 02:45:16,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-14 02:45:16,290 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-14 02:45:16,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-14 02:45:16,366 INFO L130 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2024-11-14 02:45:16,366 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-14 02:45:16,367 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-14 02:45:16,372 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74e43ddc-30fa-41a4-ba84-699aec8c2ef1/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Ended with exit code 0 [2024-11-14 02:45:16,570 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74e43ddc-30fa-41a4-ba84-699aec8c2ef1/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 02:45:16,576 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2024-11-14 02:45:16,602 INFO L173 ceAbstractionStarter]: Computing trace abstraction results [2024-11-14 02:45:16,608 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.11 02:45:16 BoogieIcfgContainer [2024-11-14 02:45:16,610 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-14 02:45:16,611 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-14 02:45:16,612 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-14 02:45:16,612 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-14 02:45:16,614 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 02:45:14" (3/4) ... [2024-11-14 02:45:16,614 INFO L136 WitnessPrinter]: Generating witness for reachability counterexample [2024-11-14 02:45:16,667 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74e43ddc-30fa-41a4-ba84-699aec8c2ef1/bin/utaipan-verify-sOmjnqqW8E/witness.graphml [2024-11-14 02:45:16,667 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-14 02:45:16,668 INFO L158 Benchmark]: Toolchain (without parser) took 2673.94ms. Allocated memory is still 117.4MB. Free memory was 91.5MB in the beginning and 51.2MB in the end (delta: 40.2MB). Peak memory consumption was 37.9MB. Max. memory is 16.1GB. [2024-11-14 02:45:16,668 INFO L158 Benchmark]: CDTParser took 0.34ms. Allocated memory is still 117.4MB. Free memory is still 83.9MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 02:45:16,668 INFO L158 Benchmark]: CACSL2BoogieTranslator took 372.30ms. Allocated memory is still 117.4MB. Free memory was 91.5MB in the beginning and 79.4MB in the end (delta: 12.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-14 02:45:16,668 INFO L158 Benchmark]: Boogie Procedure Inliner took 49.33ms. Allocated memory is still 117.4MB. Free memory was 79.4MB in the beginning and 78.2MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 02:45:16,669 INFO L158 Benchmark]: Boogie Preprocessor took 25.60ms. Allocated memory is still 117.4MB. Free memory was 78.0MB in the beginning and 77.1MB in the end (delta: 880.2kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 02:45:16,670 INFO L158 Benchmark]: RCFGBuilder took 372.32ms. Allocated memory is still 117.4MB. Free memory was 77.1MB in the beginning and 64.7MB in the end (delta: 12.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-14 02:45:16,671 INFO L158 Benchmark]: TraceAbstraction took 1784.57ms. Allocated memory is still 117.4MB. Free memory was 64.1MB in the beginning and 54.0MB in the end (delta: 10.1MB). Peak memory consumption was 12.8MB. Max. memory is 16.1GB. [2024-11-14 02:45:16,671 INFO L158 Benchmark]: Witness Printer took 56.16ms. Allocated memory is still 117.4MB. Free memory was 53.5MB in the beginning and 51.2MB in the end (delta: 2.2MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 02:45:16,672 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34ms. Allocated memory is still 117.4MB. Free memory is still 83.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 372.30ms. Allocated memory is still 117.4MB. Free memory was 91.5MB in the beginning and 79.4MB in the end (delta: 12.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 49.33ms. Allocated memory is still 117.4MB. Free memory was 79.4MB in the beginning and 78.2MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 25.60ms. Allocated memory is still 117.4MB. Free memory was 78.0MB in the beginning and 77.1MB in the end (delta: 880.2kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 372.32ms. Allocated memory is still 117.4MB. Free memory was 77.1MB in the beginning and 64.7MB in the end (delta: 12.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 1784.57ms. Allocated memory is still 117.4MB. Free memory was 64.1MB in the beginning and 54.0MB in the end (delta: 10.1MB). Peak memory consumption was 12.8MB. Max. memory is 16.1GB. * Witness Printer took 56.16ms. Allocated memory is still 117.4MB. Free memory was 53.5MB in the beginning and 51.2MB in the end (delta: 2.2MB). 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 - CounterExampleResult [Line: 22]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L27] const SORT_1 mask_SORT_1 = (SORT_1)-1 >> (sizeof(SORT_1) * 8 - 1); [L28] const SORT_1 msb_SORT_1 = (SORT_1)1 << (1 - 1); [L30] const SORT_1 var_10 = 1; [L31] const SORT_1 var_13 = 0; [L33] SORT_1 input_2; [L35] SORT_1 state_3 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L36] SORT_1 state_4 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L37] SORT_1 state_11 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L39] SORT_1 init_12_arg_1 = var_10; [L40] state_11 = init_12_arg_1 VAL [mask_SORT_1=1, state_11=1, state_3=1, state_4=0, var_13=0] [L43] input_2 = __VERIFIER_nondet_uchar() [L44] input_2 = input_2 & mask_SORT_1 [L46] SORT_1 var_9_arg_0 = state_3; [L47] SORT_1 var_9_arg_1 = state_4; [L48] SORT_1 var_9 = var_9_arg_0 == var_9_arg_1; [L49] SORT_1 var_15_arg_0 = state_11; [L50] SORT_1 var_15_arg_1 = ~var_9; [L51] var_15_arg_1 = var_15_arg_1 & mask_SORT_1 [L52] SORT_1 var_15 = !var_15_arg_0 || var_15_arg_1; [L53] SORT_1 constr_16_arg_0 = var_15; [L54] CALL assume_abort_if_not(constr_16_arg_0) [L23] COND FALSE !(!cond) [L54] RET assume_abort_if_not(constr_16_arg_0) [L56] SORT_1 bad_17_arg_0 = var_9; [L57] CALL __VERIFIER_assert(!(bad_17_arg_0)) [L22] COND FALSE !(!(cond)) [L57] RET __VERIFIER_assert(!(bad_17_arg_0)) [L59] SORT_1 var_5_arg_0 = ~input_2; [L60] var_5_arg_0 = var_5_arg_0 & mask_SORT_1 [L61] SORT_1 var_5_arg_1 = ~state_3; [L62] var_5_arg_1 = var_5_arg_1 & mask_SORT_1 [L63] SORT_1 var_5_arg_2 = state_3; [L64] SORT_1 var_5 = var_5_arg_0 ? var_5_arg_1 : var_5_arg_2; [L65] var_5 = var_5 & mask_SORT_1 [L66] SORT_1 next_7_arg_1 = var_5; [L67] SORT_1 var_6_arg_0 = input_2; [L68] SORT_1 var_6_arg_1 = ~state_4; [L69] var_6_arg_1 = var_6_arg_1 & mask_SORT_1 [L70] SORT_1 var_6_arg_2 = state_4; [L71] SORT_1 var_6 = var_6_arg_0 ? var_6_arg_1 : var_6_arg_2; [L72] var_6 = var_6 & mask_SORT_1 [L73] SORT_1 next_8_arg_1 = var_6; [L74] SORT_1 next_14_arg_1 = var_13; [L76] state_3 = next_7_arg_1 [L77] state_4 = next_8_arg_1 [L78] state_11 = next_14_arg_1 [L43] input_2 = __VERIFIER_nondet_uchar() [L44] input_2 = input_2 & mask_SORT_1 [L46] SORT_1 var_9_arg_0 = state_3; [L47] SORT_1 var_9_arg_1 = state_4; [L48] SORT_1 var_9 = var_9_arg_0 == var_9_arg_1; [L49] SORT_1 var_15_arg_0 = state_11; [L50] SORT_1 var_15_arg_1 = ~var_9; [L51] var_15_arg_1 = var_15_arg_1 & mask_SORT_1 [L52] SORT_1 var_15 = !var_15_arg_0 || var_15_arg_1; [L53] SORT_1 constr_16_arg_0 = var_15; [L54] CALL assume_abort_if_not(constr_16_arg_0) [L23] COND FALSE !(!cond) [L54] RET assume_abort_if_not(constr_16_arg_0) [L56] SORT_1 bad_17_arg_0 = var_9; [L57] CALL __VERIFIER_assert(!(bad_17_arg_0)) [L22] COND TRUE !(cond) [L22] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 12 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.7s, OverallIterations: 3, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 27 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 13 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 26 IncrementalHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 14 mSDtfsCounter, 26 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 12 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=13occurred in iteration=2, InterpolantAutomatonStates: 8, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 26 NumberOfCodeBlocks, 26 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 12 ConstructedInterpolants, 0 QuantifiedInterpolants, 59 SizeOfPredicates, 1 NumberOfNonLiveVariables, 72 ConjunctsInSsa, 17 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 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 proved your program to be incorrect! [2024-11-14 02:45:16,703 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74e43ddc-30fa-41a4-ba84-699aec8c2ef1/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 Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE