./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.toy_lock_4.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_ccf180c8-fb20-41b8-87ff-f88613b70b6f/bin/utaipan-verify-sOmjnqqW8E/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccf180c8-fb20-41b8-87ff-f88613b70b6f/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_ccf180c8-fb20-41b8-87ff-f88613b70b6f/bin/utaipan-verify-sOmjnqqW8E/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccf180c8-fb20-41b8-87ff-f88613b70b6f/bin/utaipan-verify-sOmjnqqW8E/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.toy_lock_4.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccf180c8-fb20-41b8-87ff-f88613b70b6f/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_ccf180c8-fb20-41b8-87ff-f88613b70b6f/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 dc77f8e7fc201c8766f52fe3e014d6c5c37e220387f85127552a419acc9259b5 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-14 04:17:12,540 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-14 04:17:12,635 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccf180c8-fb20-41b8-87ff-f88613b70b6f/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-Reach-64bit-Taipan_Default.epf [2024-11-14 04:17:12,646 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-14 04:17:12,647 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-14 04:17:12,686 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-14 04:17:12,687 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-14 04:17:12,688 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-14 04:17:12,689 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-14 04:17:12,689 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-14 04:17:12,690 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-14 04:17:12,690 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-14 04:17:12,690 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-14 04:17:12,690 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-14 04:17:12,691 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-14 04:17:12,691 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-14 04:17:12,691 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-14 04:17:12,691 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-14 04:17:12,691 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-14 04:17:12,691 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-14 04:17:12,691 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-14 04:17:12,691 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-14 04:17:12,692 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-14 04:17:12,692 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-14 04:17:12,692 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-14 04:17:12,692 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-14 04:17:12,692 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-14 04:17:12,692 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-14 04:17:12,692 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-14 04:17:12,692 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-14 04:17:12,692 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-14 04:17:12,692 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-14 04:17:12,693 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-14 04:17:12,693 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-14 04:17:12,693 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-14 04:17:12,693 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 04:17:12,693 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-14 04:17:12,693 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-14 04:17:12,693 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-14 04:17:12,693 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-14 04:17:12,693 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-14 04:17:12,693 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-14 04:17:12,693 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-14 04:17:12,694 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-14 04:17:12,694 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_ccf180c8-fb20-41b8-87ff-f88613b70b6f/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 -> dc77f8e7fc201c8766f52fe3e014d6c5c37e220387f85127552a419acc9259b5 [2024-11-14 04:17:13,012 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-14 04:17:13,020 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-14 04:17:13,022 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-14 04:17:13,024 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-14 04:17:13,024 INFO L274 PluginConnector]: CDTParser initialized [2024-11-14 04:17:13,026 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccf180c8-fb20-41b8-87ff-f88613b70b6f/bin/utaipan-verify-sOmjnqqW8E/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.toy_lock_4.c Unable to find full path for "g++" [2024-11-14 04:17:14,890 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-14 04:17:15,325 INFO L384 CDTParser]: Found 1 translation units. [2024-11-14 04:17:15,326 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccf180c8-fb20-41b8-87ff-f88613b70b6f/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.toy_lock_4.c [2024-11-14 04:17:15,345 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccf180c8-fb20-41b8-87ff-f88613b70b6f/bin/utaipan-verify-sOmjnqqW8E/data/fa6cfa4ac/3112311863c544f48475e4243ef8a949/FLAGfcba551dd [2024-11-14 04:17:15,479 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccf180c8-fb20-41b8-87ff-f88613b70b6f/bin/utaipan-verify-sOmjnqqW8E/data/fa6cfa4ac/3112311863c544f48475e4243ef8a949 [2024-11-14 04:17:15,481 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-14 04:17:15,483 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-14 04:17:15,485 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-14 04:17:15,486 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-14 04:17:15,495 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-14 04:17:15,496 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 04:17:15" (1/1) ... [2024-11-14 04:17:15,496 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@555d94d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:17:15, skipping insertion in model container [2024-11-14 04:17:15,497 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 04:17:15" (1/1) ... [2024-11-14 04:17:15,545 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-14 04:17:15,695 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_ccf180c8-fb20-41b8-87ff-f88613b70b6f/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.toy_lock_4.c[1250,1263] [2024-11-14 04:17:15,961 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 04:17:15,973 INFO L200 MainTranslator]: Completed pre-run [2024-11-14 04:17:15,985 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_ccf180c8-fb20-41b8-87ff-f88613b70b6f/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.toy_lock_4.c[1250,1263] [2024-11-14 04:17:16,137 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 04:17:16,150 INFO L204 MainTranslator]: Completed translation [2024-11-14 04:17:16,151 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:17:16 WrapperNode [2024-11-14 04:17:16,151 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-14 04:17:16,152 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-14 04:17:16,152 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-14 04:17:16,153 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-14 04:17:16,158 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:17:16" (1/1) ... [2024-11-14 04:17:16,186 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:17:16" (1/1) ... [2024-11-14 04:17:16,347 INFO L138 Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1371 [2024-11-14 04:17:16,347 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-14 04:17:16,348 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-14 04:17:16,348 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-14 04:17:16,348 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-14 04:17:16,356 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:17:16" (1/1) ... [2024-11-14 04:17:16,356 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:17:16" (1/1) ... [2024-11-14 04:17:16,378 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:17:16" (1/1) ... [2024-11-14 04:17:16,379 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:17:16" (1/1) ... [2024-11-14 04:17:16,455 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:17:16" (1/1) ... [2024-11-14 04:17:16,462 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:17:16" (1/1) ... [2024-11-14 04:17:16,474 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:17:16" (1/1) ... [2024-11-14 04:17:16,484 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:17:16" (1/1) ... [2024-11-14 04:17:16,560 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-14 04:17:16,562 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-14 04:17:16,562 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-14 04:17:16,562 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-14 04:17:16,564 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:17:16" (1/1) ... [2024-11-14 04:17:16,573 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 04:17:16,587 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccf180c8-fb20-41b8-87ff-f88613b70b6f/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 04:17:16,600 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccf180c8-fb20-41b8-87ff-f88613b70b6f/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-14 04:17:16,603 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccf180c8-fb20-41b8-87ff-f88613b70b6f/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-14 04:17:16,631 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-14 04:17:16,631 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-14 04:17:16,631 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-14 04:17:16,632 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-14 04:17:16,973 INFO L238 CfgBuilder]: Building ICFG [2024-11-14 04:17:16,975 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-14 04:17:19,793 INFO L? ?]: Removed 948 outVars from TransFormulas that were not future-live. [2024-11-14 04:17:19,794 INFO L287 CfgBuilder]: Performing block encoding [2024-11-14 04:17:21,450 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-14 04:17:21,450 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-14 04:17:21,450 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 04:17:21 BoogieIcfgContainer [2024-11-14 04:17:21,451 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-14 04:17:21,454 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-14 04:17:21,454 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-14 04:17:21,460 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-14 04:17:21,460 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.11 04:17:15" (1/3) ... [2024-11-14 04:17:21,460 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2abda588 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 04:17:21, skipping insertion in model container [2024-11-14 04:17:21,460 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:17:16" (2/3) ... [2024-11-14 04:17:21,461 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2abda588 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 04:17:21, skipping insertion in model container [2024-11-14 04:17:21,461 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 04:17:21" (3/3) ... [2024-11-14 04:17:21,464 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.toy_lock_4.c [2024-11-14 04:17:21,481 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-14 04:17:21,485 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG btor2c-lazyMod.toy_lock_4.c that has 1 procedures, 7 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-14 04:17:21,622 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-14 04:17:21,633 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;@6c060fd2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-14 04:17:21,634 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-14 04:17:21,637 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 04:17:21,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2024-11-14 04:17:21,642 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:17:21,643 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2024-11-14 04:17:21,643 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 04:17:21,647 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:17:21,648 INFO L85 PathProgramCache]: Analyzing trace with hash 36135957, now seen corresponding path program 1 times [2024-11-14 04:17:21,655 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:17:21,656 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1754584779] [2024-11-14 04:17:21,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:17:21,657 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:17:22,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-14 04:17:22,456 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-14 04:17:22,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-14 04:17:22,984 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2024-11-14 04:17:22,987 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-14 04:17:22,988 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-14 04:17:22,991 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-14 04:17:22,998 INFO L407 BasicCegarLoop]: Path program histogram: [1] [2024-11-14 04:17:23,041 INFO L173 ceAbstractionStarter]: Computing trace abstraction results [2024-11-14 04:17:23,044 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.11 04:17:23 BoogieIcfgContainer [2024-11-14 04:17:23,048 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-14 04:17:23,049 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-14 04:17:23,049 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-14 04:17:23,049 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-14 04:17:23,051 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 04:17:21" (3/4) ... [2024-11-14 04:17:23,054 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-14 04:17:23,054 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-14 04:17:23,056 INFO L158 Benchmark]: Toolchain (without parser) took 7573.19ms. Allocated memory was 142.6MB in the beginning and 369.1MB in the end (delta: 226.5MB). Free memory was 117.1MB in the beginning and 261.5MB in the end (delta: -144.4MB). Peak memory consumption was 83.6MB. Max. memory is 16.1GB. [2024-11-14 04:17:23,056 INFO L158 Benchmark]: CDTParser took 0.40ms. Allocated memory is still 142.6MB. Free memory is still 80.8MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 04:17:23,057 INFO L158 Benchmark]: CACSL2BoogieTranslator took 666.99ms. Allocated memory is still 142.6MB. Free memory was 117.1MB in the beginning and 80.5MB in the end (delta: 36.6MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2024-11-14 04:17:23,057 INFO L158 Benchmark]: Boogie Procedure Inliner took 195.32ms. Allocated memory is still 142.6MB. Free memory was 80.5MB in the beginning and 53.1MB in the end (delta: 27.4MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2024-11-14 04:17:23,058 INFO L158 Benchmark]: Boogie Preprocessor took 213.19ms. Allocated memory is still 142.6MB. Free memory was 53.1MB in the beginning and 96.8MB in the end (delta: -43.7MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. [2024-11-14 04:17:23,058 INFO L158 Benchmark]: RCFGBuilder took 4888.78ms. Allocated memory was 142.6MB in the beginning and 192.9MB in the end (delta: 50.3MB). Free memory was 96.8MB in the beginning and 45.5MB in the end (delta: 51.3MB). Peak memory consumption was 118.9MB. Max. memory is 16.1GB. [2024-11-14 04:17:23,059 INFO L158 Benchmark]: TraceAbstraction took 1593.87ms. Allocated memory was 192.9MB in the beginning and 369.1MB in the end (delta: 176.2MB). Free memory was 45.5MB in the beginning and 261.5MB in the end (delta: -216.0MB). Peak memory consumption was 25.1MB. Max. memory is 16.1GB. [2024-11-14 04:17:23,059 INFO L158 Benchmark]: Witness Printer took 5.96ms. Allocated memory is still 369.1MB. Free memory was 261.5MB in the beginning and 261.5MB in the end (delta: 9.1kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 04:17:23,061 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.40ms. Allocated memory is still 142.6MB. Free memory is still 80.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 666.99ms. Allocated memory is still 142.6MB. Free memory was 117.1MB in the beginning and 80.5MB in the end (delta: 36.6MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 195.32ms. Allocated memory is still 142.6MB. Free memory was 80.5MB in the beginning and 53.1MB in the end (delta: 27.4MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. * Boogie Preprocessor took 213.19ms. Allocated memory is still 142.6MB. Free memory was 53.1MB in the beginning and 96.8MB in the end (delta: -43.7MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. * RCFGBuilder took 4888.78ms. Allocated memory was 142.6MB in the beginning and 192.9MB in the end (delta: 50.3MB). Free memory was 96.8MB in the beginning and 45.5MB in the end (delta: 51.3MB). Peak memory consumption was 118.9MB. Max. memory is 16.1GB. * TraceAbstraction took 1593.87ms. Allocated memory was 192.9MB in the beginning and 369.1MB in the end (delta: 176.2MB). Free memory was 45.5MB in the beginning and 261.5MB in the end (delta: -216.0MB). Peak memory consumption was 25.1MB. Max. memory is 16.1GB. * Witness Printer took 5.96ms. Allocated memory is still 369.1MB. Free memory was 261.5MB in the beginning and 261.5MB in the end (delta: 9.1kB). 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 126, overapproximation of bitwiseAnd at line 52, overapproximation of bitwiseAnd at line 104. Possible FailurePath: [L26] const SORT_1 mask_SORT_1 = (SORT_1)-1 >> (sizeof(SORT_1) * 8 - 8); [L27] const SORT_1 msb_SORT_1 = (SORT_1)1 << (8 - 1); [L29] const SORT_3 mask_SORT_3 = (SORT_3)-1 >> (sizeof(SORT_3) * 8 - 2); [L30] const SORT_3 msb_SORT_3 = (SORT_3)1 << (2 - 1); [L32] const SORT_5 mask_SORT_5 = (SORT_5)-1 >> (sizeof(SORT_5) * 8 - 1); [L33] const SORT_5 msb_SORT_5 = (SORT_5)1 << (1 - 1); [L35] const SORT_1 var_11 = 0; [L36] const SORT_5 var_45 = 1; [L37] const SORT_1 var_49 = 1; [L38] const SORT_5 var_60 = 0; [L39] const SORT_3 var_81 = 0; [L40] const SORT_3 var_90 = 1; [L41] const SORT_3 var_99 = 2; [L42] const SORT_3 var_108 = 3; [L44] SORT_1 input_2; [L45] SORT_3 input_4; [L46] SORT_5 input_6; [L47] SORT_1 input_7; [L48] SORT_3 input_8; [L49] SORT_3 input_9; [L50] SORT_5 input_10; [L52] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L52] SORT_1 state_12 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L53] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L53] SORT_1 state_15 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L54] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L54] SORT_1 state_20 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L55] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L55] SORT_1 state_26 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L56] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L56] SORT_1 state_50 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L57] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L57] SORT_1 state_52 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L58] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L58] SORT_1 state_54 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L59] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L59] SORT_1 state_56 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L60] EXPR __VERIFIER_nondet_uchar() & mask_SORT_5 [L60] SORT_5 state_58 = __VERIFIER_nondet_uchar() & mask_SORT_5; [L61] EXPR __VERIFIER_nondet_uchar() & mask_SORT_5 [L61] SORT_5 state_61 = __VERIFIER_nondet_uchar() & mask_SORT_5; [L62] EXPR __VERIFIER_nondet_uchar() & mask_SORT_5 [L62] SORT_5 state_63 = __VERIFIER_nondet_uchar() & mask_SORT_5; [L63] EXPR __VERIFIER_nondet_uchar() & mask_SORT_5 [L63] SORT_5 state_65 = __VERIFIER_nondet_uchar() & mask_SORT_5; [L64] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L64] SORT_1 state_68 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L65] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L65] SORT_1 state_70 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L66] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L66] SORT_1 state_72 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L67] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L67] SORT_1 state_74 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L69] SORT_1 init_13_arg_1 = var_11; [L70] state_12 = init_13_arg_1 [L71] SORT_1 init_16_arg_1 = var_11; [L72] state_15 = init_16_arg_1 [L73] SORT_1 init_21_arg_1 = var_11; [L74] state_20 = init_21_arg_1 [L75] SORT_1 init_27_arg_1 = var_11; [L76] state_26 = init_27_arg_1 [L77] SORT_1 init_51_arg_1 = var_49; [L78] state_50 = init_51_arg_1 [L79] SORT_1 init_53_arg_1 = var_11; [L80] state_52 = init_53_arg_1 [L81] SORT_1 init_55_arg_1 = var_11; [L82] state_54 = init_55_arg_1 [L83] SORT_1 init_57_arg_1 = var_11; [L84] state_56 = init_57_arg_1 [L85] SORT_5 init_59_arg_1 = var_45; [L86] state_58 = init_59_arg_1 [L87] SORT_5 init_62_arg_1 = var_60; [L88] state_61 = init_62_arg_1 [L89] SORT_5 init_64_arg_1 = var_60; [L90] state_63 = init_64_arg_1 [L91] SORT_5 init_66_arg_1 = var_60; [L92] state_65 = init_66_arg_1 [L93] SORT_1 init_69_arg_1 = var_11; [L94] state_68 = init_69_arg_1 [L95] SORT_1 init_71_arg_1 = var_11; [L96] state_70 = init_71_arg_1 [L97] SORT_1 init_73_arg_1 = var_11; [L98] state_72 = init_73_arg_1 [L99] SORT_1 init_75_arg_1 = var_11; [L100] state_74 = init_75_arg_1 VAL [mask_SORT_1=255, mask_SORT_3=3, mask_SORT_5=1, state_12=0, state_15=0, state_20=0, state_26=0, state_50=1, state_52=0, state_54=0, state_56=0, state_58=1, state_61=0, state_63=0, state_65=0, state_68=0, state_70=0, state_72=0, state_74=0, var_108=3, var_11=0, var_45=1, var_60=0, var_81=0, var_90=1, var_99=2] [L103] input_2 = __VERIFIER_nondet_uchar() [L104] EXPR input_2 & mask_SORT_1 [L104] input_2 = input_2 & mask_SORT_1 [L105] input_4 = __VERIFIER_nondet_uchar() [L106] EXPR input_4 & mask_SORT_3 [L106] input_4 = input_4 & mask_SORT_3 [L107] input_6 = __VERIFIER_nondet_uchar() [L108] input_7 = __VERIFIER_nondet_uchar() [L109] EXPR input_7 & mask_SORT_1 [L109] input_7 = input_7 & mask_SORT_1 [L110] input_8 = __VERIFIER_nondet_uchar() [L111] EXPR input_8 & mask_SORT_3 [L111] input_8 = input_8 & mask_SORT_3 [L112] input_9 = __VERIFIER_nondet_uchar() [L113] EXPR input_9 & mask_SORT_3 [L113] input_9 = input_9 & mask_SORT_3 [L114] input_10 = __VERIFIER_nondet_uchar() [L115] EXPR input_10 & mask_SORT_5 [L115] input_10 = input_10 & mask_SORT_5 [L118] SORT_1 var_14_arg_0 = state_12; [L119] SORT_1 var_14_arg_1 = var_11; [L120] SORT_5 var_14 = var_14_arg_0 == var_14_arg_1; [L121] SORT_1 var_17_arg_0 = state_12; [L122] SORT_1 var_17_arg_1 = state_15; [L123] SORT_5 var_17 = var_17_arg_0 != var_17_arg_1; [L124] SORT_5 var_18_arg_0 = var_14; [L125] SORT_5 var_18_arg_1 = var_17; [L126] EXPR var_18_arg_0 | var_18_arg_1 [L126] SORT_5 var_18 = var_18_arg_0 | var_18_arg_1; [L127] SORT_1 var_19_arg_0 = state_12; [L128] SORT_1 var_19_arg_1 = var_11; [L129] SORT_5 var_19 = var_19_arg_0 == var_19_arg_1; [L130] SORT_1 var_22_arg_0 = state_12; [L131] SORT_1 var_22_arg_1 = state_20; [L132] SORT_5 var_22 = var_22_arg_0 != var_22_arg_1; [L133] SORT_5 var_23_arg_0 = var_19; [L134] SORT_5 var_23_arg_1 = var_22; [L135] EXPR var_23_arg_0 | var_23_arg_1 [L135] SORT_5 var_23 = var_23_arg_0 | var_23_arg_1; [L136] SORT_5 var_24_arg_0 = var_18; [L137] SORT_5 var_24_arg_1 = var_23; [L138] EXPR var_24_arg_0 & var_24_arg_1 [L138] SORT_5 var_24 = var_24_arg_0 & var_24_arg_1; [L139] SORT_1 var_25_arg_0 = state_12; [L140] SORT_1 var_25_arg_1 = var_11; [L141] SORT_5 var_25 = var_25_arg_0 == var_25_arg_1; [L142] SORT_1 var_28_arg_0 = state_12; [L143] SORT_1 var_28_arg_1 = state_26; [L144] SORT_5 var_28 = var_28_arg_0 != var_28_arg_1; [L145] SORT_5 var_29_arg_0 = var_25; [L146] SORT_5 var_29_arg_1 = var_28; [L147] EXPR var_29_arg_0 | var_29_arg_1 [L147] SORT_5 var_29 = var_29_arg_0 | var_29_arg_1; [L148] SORT_5 var_30_arg_0 = var_24; [L149] SORT_5 var_30_arg_1 = var_29; [L150] EXPR var_30_arg_0 & var_30_arg_1 [L150] SORT_5 var_30 = var_30_arg_0 & var_30_arg_1; [L151] SORT_1 var_31_arg_0 = state_15; [L152] SORT_1 var_31_arg_1 = var_11; [L153] SORT_5 var_31 = var_31_arg_0 == var_31_arg_1; [L154] SORT_1 var_32_arg_0 = state_15; [L155] SORT_1 var_32_arg_1 = state_20; [L156] SORT_5 var_32 = var_32_arg_0 != var_32_arg_1; [L157] SORT_5 var_33_arg_0 = var_31; [L158] SORT_5 var_33_arg_1 = var_32; [L159] EXPR var_33_arg_0 | var_33_arg_1 [L159] SORT_5 var_33 = var_33_arg_0 | var_33_arg_1; [L160] SORT_5 var_34_arg_0 = var_30; [L161] SORT_5 var_34_arg_1 = var_33; [L162] EXPR var_34_arg_0 & var_34_arg_1 [L162] SORT_5 var_34 = var_34_arg_0 & var_34_arg_1; [L163] SORT_1 var_35_arg_0 = state_15; [L164] SORT_1 var_35_arg_1 = var_11; [L165] SORT_5 var_35 = var_35_arg_0 == var_35_arg_1; [L166] SORT_1 var_36_arg_0 = state_15; [L167] SORT_1 var_36_arg_1 = state_26; [L168] SORT_5 var_36 = var_36_arg_0 != var_36_arg_1; [L169] SORT_5 var_37_arg_0 = var_35; [L170] SORT_5 var_37_arg_1 = var_36; [L171] EXPR var_37_arg_0 | var_37_arg_1 [L171] SORT_5 var_37 = var_37_arg_0 | var_37_arg_1; [L172] SORT_5 var_38_arg_0 = var_34; [L173] SORT_5 var_38_arg_1 = var_37; [L174] EXPR var_38_arg_0 & var_38_arg_1 [L174] SORT_5 var_38 = var_38_arg_0 & var_38_arg_1; [L175] SORT_1 var_39_arg_0 = state_20; [L176] SORT_1 var_39_arg_1 = var_11; [L177] SORT_5 var_39 = var_39_arg_0 == var_39_arg_1; [L178] SORT_1 var_40_arg_0 = state_20; [L179] SORT_1 var_40_arg_1 = state_26; [L180] SORT_5 var_40 = var_40_arg_0 != var_40_arg_1; [L181] SORT_5 var_41_arg_0 = var_39; [L182] SORT_5 var_41_arg_1 = var_40; [L183] EXPR var_41_arg_0 | var_41_arg_1 [L183] SORT_5 var_41 = var_41_arg_0 | var_41_arg_1; [L184] SORT_5 var_42_arg_0 = var_38; [L185] SORT_5 var_42_arg_1 = var_41; [L186] EXPR var_42_arg_0 & var_42_arg_1 [L186] SORT_5 var_42 = var_42_arg_0 & var_42_arg_1; [L187] SORT_5 var_46_arg_0 = var_42; [L188] SORT_5 var_46 = ~var_46_arg_0; [L189] SORT_5 var_47_arg_0 = var_45; [L190] SORT_5 var_47_arg_1 = var_46; [L191] EXPR var_47_arg_0 & var_47_arg_1 [L191] SORT_5 var_47 = var_47_arg_0 & var_47_arg_1; [L192] EXPR var_47 & mask_SORT_5 [L192] var_47 = var_47 & mask_SORT_5 [L193] SORT_5 bad_48_arg_0 = var_47; [L194] CALL __VERIFIER_assert(!(bad_48_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: 1.4s, 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, 0.7s 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 04:17:23,096 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccf180c8-fb20-41b8-87ff-f88613b70b6f/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccf180c8-fb20-41b8-87ff-f88613b70b6f/bin/utaipan-verify-sOmjnqqW8E/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccf180c8-fb20-41b8-87ff-f88613b70b6f/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_ccf180c8-fb20-41b8-87ff-f88613b70b6f/bin/utaipan-verify-sOmjnqqW8E/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccf180c8-fb20-41b8-87ff-f88613b70b6f/bin/utaipan-verify-sOmjnqqW8E/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.toy_lock_4.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccf180c8-fb20-41b8-87ff-f88613b70b6f/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_ccf180c8-fb20-41b8-87ff-f88613b70b6f/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 dc77f8e7fc201c8766f52fe3e014d6c5c37e220387f85127552a419acc9259b5 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-14 04:17:25,783 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-14 04:17:25,912 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccf180c8-fb20-41b8-87ff-f88613b70b6f/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2024-11-14 04:17:25,925 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-14 04:17:25,925 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-14 04:17:25,988 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-14 04:17:25,991 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-14 04:17:25,991 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-14 04:17:25,992 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-14 04:17:25,992 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-14 04:17:25,992 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-14 04:17:25,992 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-14 04:17:25,992 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-14 04:17:25,993 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-14 04:17:25,993 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-14 04:17:25,993 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-14 04:17:25,993 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-14 04:17:25,993 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-14 04:17:25,993 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-14 04:17:25,993 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-14 04:17:25,994 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-14 04:17:25,994 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-14 04:17:25,995 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-14 04:17:25,996 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-14 04:17:25,996 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-14 04:17:25,996 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-14 04:17:25,996 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-14 04:17:25,996 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-14 04:17:25,996 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-14 04:17:25,996 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-14 04:17:25,997 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-14 04:17:25,997 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-14 04:17:25,997 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 04:17:25,997 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-14 04:17:25,997 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-14 04:17:25,997 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-14 04:17:25,997 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2024-11-14 04:17:25,997 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-14 04:17:25,997 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-14 04:17:25,997 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-14 04:17:25,997 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_ccf180c8-fb20-41b8-87ff-f88613b70b6f/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 -> dc77f8e7fc201c8766f52fe3e014d6c5c37e220387f85127552a419acc9259b5 [2024-11-14 04:17:26,286 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-14 04:17:26,295 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-14 04:17:26,297 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-14 04:17:26,298 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-14 04:17:26,299 INFO L274 PluginConnector]: CDTParser initialized [2024-11-14 04:17:26,300 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccf180c8-fb20-41b8-87ff-f88613b70b6f/bin/utaipan-verify-sOmjnqqW8E/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.toy_lock_4.c Unable to find full path for "g++" [2024-11-14 04:17:28,249 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-14 04:17:28,634 INFO L384 CDTParser]: Found 1 translation units. [2024-11-14 04:17:28,635 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccf180c8-fb20-41b8-87ff-f88613b70b6f/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.toy_lock_4.c [2024-11-14 04:17:28,658 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccf180c8-fb20-41b8-87ff-f88613b70b6f/bin/utaipan-verify-sOmjnqqW8E/data/a3e55bcf0/624e75c2201f45799e1134ee380aa39c/FLAG5d8af48ce [2024-11-14 04:17:28,683 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccf180c8-fb20-41b8-87ff-f88613b70b6f/bin/utaipan-verify-sOmjnqqW8E/data/a3e55bcf0/624e75c2201f45799e1134ee380aa39c [2024-11-14 04:17:28,686 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-14 04:17:28,688 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-14 04:17:28,691 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-14 04:17:28,692 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-14 04:17:28,697 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-14 04:17:28,698 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 04:17:28" (1/1) ... [2024-11-14 04:17:28,699 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1de04e6b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:17:28, skipping insertion in model container [2024-11-14 04:17:28,699 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 04:17:28" (1/1) ... [2024-11-14 04:17:28,764 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-14 04:17:28,985 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_ccf180c8-fb20-41b8-87ff-f88613b70b6f/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.toy_lock_4.c[1250,1263] [2024-11-14 04:17:29,272 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 04:17:29,298 INFO L200 MainTranslator]: Completed pre-run [2024-11-14 04:17:29,312 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_ccf180c8-fb20-41b8-87ff-f88613b70b6f/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.toy_lock_4.c[1250,1263] [2024-11-14 04:17:29,482 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 04:17:29,503 INFO L204 MainTranslator]: Completed translation [2024-11-14 04:17:29,504 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:17:29 WrapperNode [2024-11-14 04:17:29,505 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-14 04:17:29,506 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-14 04:17:29,506 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-14 04:17:29,507 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-14 04:17:29,514 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:17:29" (1/1) ... [2024-11-14 04:17:29,546 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:17:29" (1/1) ... [2024-11-14 04:17:29,646 INFO L138 Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 899 [2024-11-14 04:17:29,646 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-14 04:17:29,648 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-14 04:17:29,648 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-14 04:17:29,648 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-14 04:17:29,658 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:17:29" (1/1) ... [2024-11-14 04:17:29,658 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:17:29" (1/1) ... [2024-11-14 04:17:29,674 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:17:29" (1/1) ... [2024-11-14 04:17:29,675 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:17:29" (1/1) ... [2024-11-14 04:17:29,715 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:17:29" (1/1) ... [2024-11-14 04:17:29,719 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:17:29" (1/1) ... [2024-11-14 04:17:29,730 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:17:29" (1/1) ... [2024-11-14 04:17:29,733 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:17:29" (1/1) ... [2024-11-14 04:17:29,755 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-14 04:17:29,756 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-14 04:17:29,756 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-14 04:17:29,756 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-14 04:17:29,757 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:17:29" (1/1) ... [2024-11-14 04:17:29,765 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 04:17:29,780 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccf180c8-fb20-41b8-87ff-f88613b70b6f/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 04:17:29,796 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccf180c8-fb20-41b8-87ff-f88613b70b6f/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-14 04:17:29,822 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccf180c8-fb20-41b8-87ff-f88613b70b6f/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-14 04:17:29,847 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-14 04:17:29,847 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-11-14 04:17:29,847 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-14 04:17:29,847 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-14 04:17:30,168 INFO L238 CfgBuilder]: Building ICFG [2024-11-14 04:17:30,170 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-14 04:17:31,277 INFO L? ?]: Removed 106 outVars from TransFormulas that were not future-live. [2024-11-14 04:17:31,277 INFO L287 CfgBuilder]: Performing block encoding [2024-11-14 04:17:31,288 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-14 04:17:31,288 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-14 04:17:31,289 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 04:17:31 BoogieIcfgContainer [2024-11-14 04:17:31,289 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-14 04:17:31,292 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-14 04:17:31,292 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-14 04:17:31,297 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-14 04:17:31,298 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.11 04:17:28" (1/3) ... [2024-11-14 04:17:31,298 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@66e9a77 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 04:17:31, skipping insertion in model container [2024-11-14 04:17:31,298 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:17:29" (2/3) ... [2024-11-14 04:17:31,299 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@66e9a77 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 04:17:31, skipping insertion in model container [2024-11-14 04:17:31,299 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 04:17:31" (3/3) ... [2024-11-14 04:17:31,300 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.toy_lock_4.c [2024-11-14 04:17:31,316 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-14 04:17:31,318 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG btor2c-lazyMod.toy_lock_4.c that has 1 procedures, 10 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-14 04:17:31,381 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-14 04:17:31,396 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;@4c28fa21, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-14 04:17:31,397 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-14 04:17:31,403 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 04:17:31,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2024-11-14 04:17:31,408 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:17:31,409 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2024-11-14 04:17:31,409 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 04:17:31,413 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:17:31,414 INFO L85 PathProgramCache]: Analyzing trace with hash 28694789, now seen corresponding path program 1 times [2024-11-14 04:17:31,424 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 04:17:31,425 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1257423095] [2024-11-14 04:17:31,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:17:31,426 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 04:17:31,426 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccf180c8-fb20-41b8-87ff-f88613b70b6f/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 04:17:31,428 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccf180c8-fb20-41b8-87ff-f88613b70b6f/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 04:17:31,431 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccf180c8-fb20-41b8-87ff-f88613b70b6f/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 04:17:31,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:17:31,921 INFO L255 TraceCheckSpWp]: Trace formula consists of 143 conjuncts, 61 conjuncts are in the unsatisfiable core [2024-11-14 04:17:31,947 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:17:32,536 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 04:17:32,537 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 04:17:32,538 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 04:17:32,540 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1257423095] [2024-11-14 04:17:32,541 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1257423095] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 04:17:32,541 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 04:17:32,541 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-14 04:17:32,543 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1591174827] [2024-11-14 04:17:32,543 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:17:32,547 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-14 04:17:32,547 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 04:17:32,569 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-14 04:17:32,570 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-14 04:17:32,573 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 04:17:32,674 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:17:32,676 INFO L93 Difference]: Finished difference Result 18 states and 23 transitions. [2024-11-14 04:17:32,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-14 04:17:32,679 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 04:17:32,680 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:17:32,685 INFO L225 Difference]: With dead ends: 18 [2024-11-14 04:17:32,686 INFO L226 Difference]: Without dead ends: 10 [2024-11-14 04:17:32,690 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-14 04:17:32,694 INFO L432 NwaCegarLoop]: 4 mSDtfsCounter, 2 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 11 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-14 04:17:32,697 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 11 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-14 04:17:32,710 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states. [2024-11-14 04:17:32,719 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 9. [2024-11-14 04:17:32,720 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 04:17:32,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2024-11-14 04:17:32,727 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 5 [2024-11-14 04:17:32,727 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:17:32,728 INFO L471 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2024-11-14 04:17:32,729 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 04:17:32,729 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2024-11-14 04:17:32,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-14 04:17:32,729 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:17:32,729 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2024-11-14 04:17:32,736 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccf180c8-fb20-41b8-87ff-f88613b70b6f/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 04:17:32,930 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccf180c8-fb20-41b8-87ff-f88613b70b6f/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 04:17:32,930 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 04:17:32,931 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:17:32,931 INFO L85 PathProgramCache]: Analyzing trace with hash 152739811, now seen corresponding path program 1 times [2024-11-14 04:17:32,933 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 04:17:32,933 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1019063456] [2024-11-14 04:17:32,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:17:32,933 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 04:17:32,933 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccf180c8-fb20-41b8-87ff-f88613b70b6f/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 04:17:32,935 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccf180c8-fb20-41b8-87ff-f88613b70b6f/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 04:17:32,938 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccf180c8-fb20-41b8-87ff-f88613b70b6f/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 04:17:33,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:17:33,550 INFO L255 TraceCheckSpWp]: Trace formula consists of 243 conjuncts, 92 conjuncts are in the unsatisfiable core [2024-11-14 04:17:33,574 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:17:48,880 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 04:17:48,880 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 04:25:18,393 WARN L286 SmtUtils]: Spent 10.25s on a formula simplification. DAG size of input: 1097 DAG size of output: 1071 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify)