./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/termination-memory-alloca/a.05-alloca.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 826ab2ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc485948-e759-4e3f-a1bc-467241dc378d/bin/utaipan-verify-sOmjnqqW8E/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc485948-e759-4e3f-a1bc-467241dc378d/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_bc485948-e759-4e3f-a1bc-467241dc378d/bin/utaipan-verify-sOmjnqqW8E/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc485948-e759-4e3f-a1bc-467241dc378d/bin/utaipan-verify-sOmjnqqW8E/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/termination-memory-alloca/a.05-alloca.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc485948-e759-4e3f-a1bc-467241dc378d/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-DerefFreeMemtrack-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc485948-e759-4e3f-a1bc-467241dc378d/bin/utaipan-verify-sOmjnqqW8E --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 5dfaa1e7d8e11d61c3d4d0b8b3724f22fd323b68a720b01bc26596e3781d27f8 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-14 05:23:02,838 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-14 05:23:02,939 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc485948-e759-4e3f-a1bc-467241dc378d/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-DerefFreeMemtrack-64bit-Taipan_Default.epf [2024-11-14 05:23:02,947 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-14 05:23:02,948 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-14 05:23:02,988 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-14 05:23:02,989 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-14 05:23:02,990 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-14 05:23:02,990 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-14 05:23:02,991 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-14 05:23:02,991 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-14 05:23:02,992 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-14 05:23:02,992 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-14 05:23:02,992 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-14 05:23:02,993 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-14 05:23:02,993 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-14 05:23:02,993 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-14 05:23:02,994 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-14 05:23:02,994 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-14 05:23:02,994 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-14 05:23:02,994 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-14 05:23:02,994 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-14 05:23:02,995 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-14 05:23:02,995 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-14 05:23:02,995 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-14 05:23:02,996 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-14 05:23:02,996 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-14 05:23:02,996 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-14 05:23:02,996 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-14 05:23:02,996 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-14 05:23:02,996 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-14 05:23:02,996 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-14 05:23:02,996 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-14 05:23:02,996 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-14 05:23:02,996 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-14 05:23:02,996 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-14 05:23:02,997 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-14 05:23:02,997 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-14 05:23:02,997 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 05:23:02,997 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-14 05:23:02,997 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-14 05:23:02,998 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-14 05:23:02,998 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-14 05:23:02,999 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-14 05:23:02,999 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-14 05:23:02,999 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-14 05:23:02,999 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_bc485948-e759-4e3f-a1bc-467241dc378d/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 valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) 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 -> 5dfaa1e7d8e11d61c3d4d0b8b3724f22fd323b68a720b01bc26596e3781d27f8 [2024-11-14 05:23:03,344 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-14 05:23:03,353 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-14 05:23:03,356 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-14 05:23:03,357 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-14 05:23:03,358 INFO L274 PluginConnector]: CDTParser initialized [2024-11-14 05:23:03,359 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc485948-e759-4e3f-a1bc-467241dc378d/bin/utaipan-verify-sOmjnqqW8E/../../sv-benchmarks/c/termination-memory-alloca/a.05-alloca.i Unable to find full path for "g++" [2024-11-14 05:23:05,334 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-14 05:23:05,694 INFO L384 CDTParser]: Found 1 translation units. [2024-11-14 05:23:05,695 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc485948-e759-4e3f-a1bc-467241dc378d/sv-benchmarks/c/termination-memory-alloca/a.05-alloca.i [2024-11-14 05:23:05,715 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc485948-e759-4e3f-a1bc-467241dc378d/bin/utaipan-verify-sOmjnqqW8E/data/ff9175565/f26f3e2937cb41e08e1d870c81e1044c/FLAG10ee0ae2c [2024-11-14 05:23:05,734 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc485948-e759-4e3f-a1bc-467241dc378d/bin/utaipan-verify-sOmjnqqW8E/data/ff9175565/f26f3e2937cb41e08e1d870c81e1044c [2024-11-14 05:23:05,736 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-14 05:23:05,738 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-14 05:23:05,739 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-14 05:23:05,739 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-14 05:23:05,744 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-14 05:23:05,745 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 05:23:05" (1/1) ... [2024-11-14 05:23:05,746 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6bd70b2c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:23:05, skipping insertion in model container [2024-11-14 05:23:05,746 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 05:23:05" (1/1) ... [2024-11-14 05:23:05,779 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-14 05:23:06,136 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 05:23:06,147 INFO L200 MainTranslator]: Completed pre-run [2024-11-14 05:23:06,182 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 05:23:06,206 INFO L204 MainTranslator]: Completed translation [2024-11-14 05:23:06,207 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:23:06 WrapperNode [2024-11-14 05:23:06,207 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-14 05:23:06,208 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-14 05:23:06,208 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-14 05:23:06,208 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-14 05:23:06,214 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:23:06" (1/1) ... [2024-11-14 05:23:06,224 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:23:06" (1/1) ... [2024-11-14 05:23:06,244 INFO L138 Inliner]: procedures = 111, calls = 21, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 66 [2024-11-14 05:23:06,245 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-14 05:23:06,246 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-14 05:23:06,246 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-14 05:23:06,246 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-14 05:23:06,252 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:23:06" (1/1) ... [2024-11-14 05:23:06,252 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:23:06" (1/1) ... [2024-11-14 05:23:06,255 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:23:06" (1/1) ... [2024-11-14 05:23:06,255 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:23:06" (1/1) ... [2024-11-14 05:23:06,260 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:23:06" (1/1) ... [2024-11-14 05:23:06,263 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:23:06" (1/1) ... [2024-11-14 05:23:06,266 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:23:06" (1/1) ... [2024-11-14 05:23:06,267 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:23:06" (1/1) ... [2024-11-14 05:23:06,268 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-14 05:23:06,269 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-14 05:23:06,270 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-14 05:23:06,270 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-14 05:23:06,272 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:23:06" (1/1) ... [2024-11-14 05:23:06,277 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 05:23:06,291 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc485948-e759-4e3f-a1bc-467241dc378d/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:23:06,305 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc485948-e759-4e3f-a1bc-467241dc378d/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-14 05:23:06,315 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc485948-e759-4e3f-a1bc-467241dc378d/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-14 05:23:06,339 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-14 05:23:06,339 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-14 05:23:06,339 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-14 05:23:06,339 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-14 05:23:06,339 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-14 05:23:06,339 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-14 05:23:06,437 INFO L238 CfgBuilder]: Building ICFG [2024-11-14 05:23:06,439 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-14 05:23:06,642 INFO L? ?]: Removed 48 outVars from TransFormulas that were not future-live. [2024-11-14 05:23:06,642 INFO L287 CfgBuilder]: Performing block encoding [2024-11-14 05:23:06,685 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-14 05:23:06,686 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-14 05:23:06,686 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 05:23:06 BoogieIcfgContainer [2024-11-14 05:23:06,686 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-14 05:23:06,689 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-14 05:23:06,689 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-14 05:23:06,693 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-14 05:23:06,694 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.11 05:23:05" (1/3) ... [2024-11-14 05:23:06,694 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a5dc5d6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 05:23:06, skipping insertion in model container [2024-11-14 05:23:06,695 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:23:06" (2/3) ... [2024-11-14 05:23:06,695 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a5dc5d6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 05:23:06, skipping insertion in model container [2024-11-14 05:23:06,695 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 05:23:06" (3/3) ... [2024-11-14 05:23:06,697 INFO L112 eAbstractionObserver]: Analyzing ICFG a.05-alloca.i [2024-11-14 05:23:06,713 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-14 05:23:06,714 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG a.05-alloca.i that has 1 procedures, 33 locations, 1 initial locations, 1 loop locations, and 19 error locations. [2024-11-14 05:23:06,762 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-14 05:23:06,782 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=None, 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;@484c896e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-14 05:23:06,782 INFO L334 AbstractCegarLoop]: Starting to check reachability of 19 error locations. [2024-11-14 05:23:06,787 INFO L276 IsEmpty]: Start isEmpty. Operand has 33 states, 13 states have (on average 2.6923076923076925) internal successors, (35), 32 states have internal predecessors, (35), 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 05:23:06,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2024-11-14 05:23:06,795 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:23:06,796 INFO L215 NwaCegarLoop]: trace histogram [1, 1] [2024-11-14 05:23:06,797 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 16 more)] === [2024-11-14 05:23:06,802 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:23:06,803 INFO L85 PathProgramCache]: Analyzing trace with hash 2763, now seen corresponding path program 1 times [2024-11-14 05:23:06,812 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:23:06,813 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [503584211] [2024-11-14 05:23:06,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:23:06,813 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:23:06,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:23:07,214 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 05:23:07,214 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:23:07,214 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [503584211] [2024-11-14 05:23:07,215 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [503584211] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:23:07,215 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 05:23:07,215 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-14 05:23:07,217 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1677561221] [2024-11-14 05:23:07,218 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:23:07,222 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 05:23:07,222 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:23:07,260 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 05:23:07,260 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 05:23:07,262 INFO L87 Difference]: Start difference. First operand has 33 states, 13 states have (on average 2.6923076923076925) internal successors, (35), 32 states have internal predecessors, (35), 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 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 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 05:23:07,342 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:23:07,343 INFO L93 Difference]: Finished difference Result 31 states and 32 transitions. [2024-11-14 05:23:07,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 05:23:07,347 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 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 2 [2024-11-14 05:23:07,347 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:23:07,355 INFO L225 Difference]: With dead ends: 31 [2024-11-14 05:23:07,355 INFO L226 Difference]: Without dead ends: 30 [2024-11-14 05:23:07,357 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 05:23:07,360 INFO L432 NwaCegarLoop]: 12 mSDtfsCounter, 26 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 12 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-14 05:23:07,361 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 12 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-14 05:23:07,375 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2024-11-14 05:23:07,385 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2024-11-14 05:23:07,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 29 states have internal predecessors, (31), 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 05:23:07,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 31 transitions. [2024-11-14 05:23:07,391 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 31 transitions. Word has length 2 [2024-11-14 05:23:07,391 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:23:07,391 INFO L471 AbstractCegarLoop]: Abstraction has 30 states and 31 transitions. [2024-11-14 05:23:07,391 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 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 05:23:07,392 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 31 transitions. [2024-11-14 05:23:07,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2024-11-14 05:23:07,392 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:23:07,392 INFO L215 NwaCegarLoop]: trace histogram [1, 1] [2024-11-14 05:23:07,392 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-14 05:23:07,392 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 16 more)] === [2024-11-14 05:23:07,393 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:23:07,393 INFO L85 PathProgramCache]: Analyzing trace with hash 2764, now seen corresponding path program 1 times [2024-11-14 05:23:07,393 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:23:07,393 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1239822627] [2024-11-14 05:23:07,393 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:23:07,393 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:23:07,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:23:07,599 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 05:23:07,600 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:23:07,600 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1239822627] [2024-11-14 05:23:07,601 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1239822627] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:23:07,601 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 05:23:07,601 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-14 05:23:07,601 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1527112359] [2024-11-14 05:23:07,601 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:23:07,602 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 05:23:07,602 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:23:07,603 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 05:23:07,603 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 05:23:07,603 INFO L87 Difference]: Start difference. First operand 30 states and 31 transitions. Second operand has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 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 05:23:07,649 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:23:07,649 INFO L93 Difference]: Finished difference Result 28 states and 29 transitions. [2024-11-14 05:23:07,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 05:23:07,650 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 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 2 [2024-11-14 05:23:07,650 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:23:07,651 INFO L225 Difference]: With dead ends: 28 [2024-11-14 05:23:07,651 INFO L226 Difference]: Without dead ends: 28 [2024-11-14 05:23:07,651 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 05:23:07,652 INFO L432 NwaCegarLoop]: 12 mSDtfsCounter, 26 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 13 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-14 05:23:07,654 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 13 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-14 05:23:07,656 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2024-11-14 05:23:07,660 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2024-11-14 05:23:07,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 13 states have (on average 2.230769230769231) internal successors, (29), 27 states have internal predecessors, (29), 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 05:23:07,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 29 transitions. [2024-11-14 05:23:07,661 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 29 transitions. Word has length 2 [2024-11-14 05:23:07,661 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:23:07,661 INFO L471 AbstractCegarLoop]: Abstraction has 28 states and 29 transitions. [2024-11-14 05:23:07,661 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 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 05:23:07,661 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 29 transitions. [2024-11-14 05:23:07,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2024-11-14 05:23:07,662 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:23:07,662 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1] [2024-11-14 05:23:07,662 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-14 05:23:07,664 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 16 more)] === [2024-11-14 05:23:07,665 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:23:07,665 INFO L85 PathProgramCache]: Analyzing trace with hash 85629, now seen corresponding path program 1 times [2024-11-14 05:23:07,665 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:23:07,666 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [501234479] [2024-11-14 05:23:07,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:23:07,666 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:23:07,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:23:07,763 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 05:23:07,763 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:23:07,764 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [501234479] [2024-11-14 05:23:07,764 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [501234479] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:23:07,764 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 05:23:07,764 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-14 05:23:07,764 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [146866318] [2024-11-14 05:23:07,765 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:23:07,765 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 05:23:07,765 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:23:07,765 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 05:23:07,765 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 05:23:07,765 INFO L87 Difference]: Start difference. First operand 28 states and 29 transitions. Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 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 05:23:07,842 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:23:07,842 INFO L93 Difference]: Finished difference Result 23 states and 24 transitions. [2024-11-14 05:23:07,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 05:23:07,843 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 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 3 [2024-11-14 05:23:07,843 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:23:07,844 INFO L225 Difference]: With dead ends: 23 [2024-11-14 05:23:07,844 INFO L226 Difference]: Without dead ends: 23 [2024-11-14 05:23:07,844 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 05:23:07,845 INFO L432 NwaCegarLoop]: 7 mSDtfsCounter, 15 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 7 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-14 05:23:07,845 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 7 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-14 05:23:07,846 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2024-11-14 05:23:07,852 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2024-11-14 05:23:07,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 13 states have (on average 1.8461538461538463) internal successors, (24), 22 states have internal predecessors, (24), 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 05:23:07,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 24 transitions. [2024-11-14 05:23:07,853 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 24 transitions. Word has length 3 [2024-11-14 05:23:07,853 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:23:07,853 INFO L471 AbstractCegarLoop]: Abstraction has 23 states and 24 transitions. [2024-11-14 05:23:07,853 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 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 05:23:07,853 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 24 transitions. [2024-11-14 05:23:07,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2024-11-14 05:23:07,853 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:23:07,853 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1] [2024-11-14 05:23:07,853 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-14 05:23:07,854 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 16 more)] === [2024-11-14 05:23:07,854 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:23:07,854 INFO L85 PathProgramCache]: Analyzing trace with hash 85630, now seen corresponding path program 1 times [2024-11-14 05:23:07,854 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:23:07,854 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2105781338] [2024-11-14 05:23:07,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:23:07,854 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:23:07,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:23:07,997 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 05:23:07,998 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:23:07,998 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2105781338] [2024-11-14 05:23:07,998 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2105781338] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:23:07,998 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 05:23:07,998 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-14 05:23:07,998 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1221640472] [2024-11-14 05:23:07,999 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:23:07,999 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 05:23:07,999 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:23:07,999 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 05:23:08,000 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 05:23:08,000 INFO L87 Difference]: Start difference. First operand 23 states and 24 transitions. Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 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 05:23:08,046 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:23:08,046 INFO L93 Difference]: Finished difference Result 18 states and 19 transitions. [2024-11-14 05:23:08,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 05:23:08,047 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 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 3 [2024-11-14 05:23:08,047 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:23:08,048 INFO L225 Difference]: With dead ends: 18 [2024-11-14 05:23:08,048 INFO L226 Difference]: Without dead ends: 18 [2024-11-14 05:23:08,048 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 05:23:08,049 INFO L432 NwaCegarLoop]: 7 mSDtfsCounter, 15 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 8 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-14 05:23:08,053 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 8 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-14 05:23:08,054 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2024-11-14 05:23:08,055 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2024-11-14 05:23:08,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 13 states have (on average 1.4615384615384615) internal successors, (19), 17 states have internal predecessors, (19), 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 05:23:08,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 19 transitions. [2024-11-14 05:23:08,059 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 19 transitions. Word has length 3 [2024-11-14 05:23:08,059 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:23:08,059 INFO L471 AbstractCegarLoop]: Abstraction has 18 states and 19 transitions. [2024-11-14 05:23:08,059 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 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 05:23:08,059 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 19 transitions. [2024-11-14 05:23:08,059 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2024-11-14 05:23:08,060 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:23:08,060 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2024-11-14 05:23:08,060 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-14 05:23:08,060 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 16 more)] === [2024-11-14 05:23:08,060 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:23:08,060 INFO L85 PathProgramCache]: Analyzing trace with hash 2654478, now seen corresponding path program 1 times [2024-11-14 05:23:08,060 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:23:08,060 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [680263923] [2024-11-14 05:23:08,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:23:08,061 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:23:08,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:23:08,107 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 05:23:08,107 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:23:08,107 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [680263923] [2024-11-14 05:23:08,107 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [680263923] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:23:08,107 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 05:23:08,108 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-14 05:23:08,108 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [729224384] [2024-11-14 05:23:08,108 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:23:08,108 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 05:23:08,108 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:23:08,109 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 05:23:08,109 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 05:23:08,109 INFO L87 Difference]: Start difference. First operand 18 states and 19 transitions. Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 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 05:23:08,164 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:23:08,164 INFO L93 Difference]: Finished difference Result 16 states and 17 transitions. [2024-11-14 05:23:08,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 05:23:08,165 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 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 4 [2024-11-14 05:23:08,165 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:23:08,166 INFO L225 Difference]: With dead ends: 16 [2024-11-14 05:23:08,166 INFO L226 Difference]: Without dead ends: 16 [2024-11-14 05:23:08,166 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 05:23:08,167 INFO L432 NwaCegarLoop]: 5 mSDtfsCounter, 10 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 5 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-14 05:23:08,167 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 5 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-14 05:23:08,168 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2024-11-14 05:23:08,169 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2024-11-14 05:23:08,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 13 states have (on average 1.3076923076923077) internal successors, (17), 15 states have internal predecessors, (17), 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 05:23:08,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 17 transitions. [2024-11-14 05:23:08,170 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 17 transitions. Word has length 4 [2024-11-14 05:23:08,170 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:23:08,170 INFO L471 AbstractCegarLoop]: Abstraction has 16 states and 17 transitions. [2024-11-14 05:23:08,170 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 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 05:23:08,170 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 17 transitions. [2024-11-14 05:23:08,171 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2024-11-14 05:23:08,171 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:23:08,171 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2024-11-14 05:23:08,171 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-14 05:23:08,171 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 16 more)] === [2024-11-14 05:23:08,172 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:23:08,172 INFO L85 PathProgramCache]: Analyzing trace with hash 2654479, now seen corresponding path program 1 times [2024-11-14 05:23:08,172 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:23:08,172 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1196724284] [2024-11-14 05:23:08,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:23:08,172 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:23:08,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:23:08,237 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 05:23:08,237 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:23:08,238 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1196724284] [2024-11-14 05:23:08,238 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1196724284] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:23:08,238 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 05:23:08,238 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-14 05:23:08,238 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [149667355] [2024-11-14 05:23:08,238 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:23:08,238 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 05:23:08,239 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:23:08,239 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 05:23:08,239 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 05:23:08,239 INFO L87 Difference]: Start difference. First operand 16 states and 17 transitions. Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 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 05:23:08,263 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:23:08,263 INFO L93 Difference]: Finished difference Result 14 states and 15 transitions. [2024-11-14 05:23:08,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 05:23:08,264 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 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 4 [2024-11-14 05:23:08,264 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:23:08,264 INFO L225 Difference]: With dead ends: 14 [2024-11-14 05:23:08,264 INFO L226 Difference]: Without dead ends: 14 [2024-11-14 05:23:08,264 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 05:23:08,265 INFO L432 NwaCegarLoop]: 5 mSDtfsCounter, 10 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 6 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-14 05:23:08,265 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 6 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-14 05:23:08,265 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2024-11-14 05:23:08,266 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2024-11-14 05:23:08,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 13 states have (on average 1.1538461538461537) internal successors, (15), 13 states have internal predecessors, (15), 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 05:23:08,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 15 transitions. [2024-11-14 05:23:08,267 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 15 transitions. Word has length 4 [2024-11-14 05:23:08,267 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:23:08,267 INFO L471 AbstractCegarLoop]: Abstraction has 14 states and 15 transitions. [2024-11-14 05:23:08,268 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 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 05:23:08,268 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 15 transitions. [2024-11-14 05:23:08,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-11-14 05:23:08,268 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:23:08,268 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:23:08,268 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-14 05:23:08,269 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 16 more)] === [2024-11-14 05:23:08,269 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:23:08,269 INFO L85 PathProgramCache]: Analyzing trace with hash 329710254, now seen corresponding path program 1 times [2024-11-14 05:23:08,269 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:23:08,270 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1680404976] [2024-11-14 05:23:08,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:23:08,270 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:23:08,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:23:08,665 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 05:23:08,666 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:23:08,666 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1680404976] [2024-11-14 05:23:08,666 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1680404976] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:23:08,667 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 05:23:08,667 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-14 05:23:08,667 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1736117517] [2024-11-14 05:23:08,667 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:23:08,667 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-14 05:23:08,667 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:23:08,668 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-14 05:23:08,669 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-14 05:23:08,669 INFO L87 Difference]: Start difference. First operand 14 states and 15 transitions. Second operand has 5 states, 4 states have (on average 2.25) internal successors, (9), 4 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 05:23:08,707 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:23:08,708 INFO L93 Difference]: Finished difference Result 13 states and 14 transitions. [2024-11-14 05:23:08,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-14 05:23:08,708 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.25) internal successors, (9), 4 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) Word has length 9 [2024-11-14 05:23:08,709 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:23:08,709 INFO L225 Difference]: With dead ends: 13 [2024-11-14 05:23:08,709 INFO L226 Difference]: Without dead ends: 0 [2024-11-14 05:23:08,709 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-14 05:23:08,710 INFO L432 NwaCegarLoop]: 4 mSDtfsCounter, 15 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 8 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-14 05:23:08,711 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 8 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-14 05:23:08,711 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-14 05:23:08,713 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-14 05:23:08,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 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 05:23:08,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-14 05:23:08,714 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 9 [2024-11-14 05:23:08,714 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:23:08,714 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-14 05:23:08,714 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.25) internal successors, (9), 4 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 05:23:08,714 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-14 05:23:08,714 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-14 05:23:08,717 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (18 of 19 remaining) [2024-11-14 05:23:08,717 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (17 of 19 remaining) [2024-11-14 05:23:08,717 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (16 of 19 remaining) [2024-11-14 05:23:08,718 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (15 of 19 remaining) [2024-11-14 05:23:08,718 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (14 of 19 remaining) [2024-11-14 05:23:08,718 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (13 of 19 remaining) [2024-11-14 05:23:08,718 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (12 of 19 remaining) [2024-11-14 05:23:08,718 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE (11 of 19 remaining) [2024-11-14 05:23:08,719 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8REQUIRES_VIOLATIONMEMORY_DEREFERENCE (10 of 19 remaining) [2024-11-14 05:23:08,719 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9REQUIRES_VIOLATIONMEMORY_DEREFERENCE (9 of 19 remaining) [2024-11-14 05:23:08,719 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr10REQUIRES_VIOLATIONMEMORY_DEREFERENCE (8 of 19 remaining) [2024-11-14 05:23:08,719 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr11REQUIRES_VIOLATIONMEMORY_DEREFERENCE (7 of 19 remaining) [2024-11-14 05:23:08,720 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr12REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 19 remaining) [2024-11-14 05:23:08,720 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr13REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 19 remaining) [2024-11-14 05:23:08,720 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr14REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 19 remaining) [2024-11-14 05:23:08,720 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr15REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 19 remaining) [2024-11-14 05:23:08,720 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr16REQUIRES_VIOLATIONMEMORY_DEREFERENCE (2 of 19 remaining) [2024-11-14 05:23:08,720 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr17REQUIRES_VIOLATIONMEMORY_DEREFERENCE (1 of 19 remaining) [2024-11-14 05:23:08,720 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr18ASSERT_VIOLATIONMEMORY_LEAK (0 of 19 remaining) [2024-11-14 05:23:08,721 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-14 05:23:08,724 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:23:08,726 INFO L173 ceAbstractionStarter]: Computing trace abstraction results [2024-11-14 05:23:08,731 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.11 05:23:08 BoogieIcfgContainer [2024-11-14 05:23:08,731 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-14 05:23:08,732 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-14 05:23:08,732 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-14 05:23:08,732 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-14 05:23:08,733 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 05:23:06" (3/4) ... [2024-11-14 05:23:08,736 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-14 05:23:08,744 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 17 nodes and edges [2024-11-14 05:23:08,745 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2024-11-14 05:23:08,745 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2024-11-14 05:23:08,745 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2024-11-14 05:23:08,850 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc485948-e759-4e3f-a1bc-467241dc378d/bin/utaipan-verify-sOmjnqqW8E/witness.graphml [2024-11-14 05:23:08,851 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc485948-e759-4e3f-a1bc-467241dc378d/bin/utaipan-verify-sOmjnqqW8E/witness.yml [2024-11-14 05:23:08,851 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-14 05:23:08,853 INFO L158 Benchmark]: Toolchain (without parser) took 3114.06ms. Allocated memory was 117.4MB in the beginning and 352.3MB in the end (delta: 234.9MB). Free memory was 93.7MB in the beginning and 324.6MB in the end (delta: -230.9MB). Peak memory consumption was 64.6MB. Max. memory is 16.1GB. [2024-11-14 05:23:08,854 INFO L158 Benchmark]: CDTParser took 0.50ms. Allocated memory is still 142.6MB. Free memory is still 80.4MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 05:23:08,854 INFO L158 Benchmark]: CACSL2BoogieTranslator took 468.15ms. Allocated memory is still 117.4MB. Free memory was 93.4MB in the beginning and 77.4MB in the end (delta: 16.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-14 05:23:08,854 INFO L158 Benchmark]: Boogie Procedure Inliner took 36.55ms. Allocated memory is still 117.4MB. Free memory was 77.4MB in the beginning and 75.9MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 05:23:08,855 INFO L158 Benchmark]: Boogie Preprocessor took 22.60ms. Allocated memory is still 117.4MB. Free memory was 75.9MB in the beginning and 75.0MB in the end (delta: 909.6kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 05:23:08,855 INFO L158 Benchmark]: RCFGBuilder took 417.42ms. Allocated memory is still 117.4MB. Free memory was 75.0MB in the beginning and 59.2MB in the end (delta: 15.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-14 05:23:08,856 INFO L158 Benchmark]: TraceAbstraction took 2042.78ms. Allocated memory is still 117.4MB. Free memory was 58.6MB in the beginning and 36.6MB in the end (delta: 22.0MB). Peak memory consumption was 30.7MB. Max. memory is 16.1GB. [2024-11-14 05:23:08,856 INFO L158 Benchmark]: Witness Printer took 118.85ms. Allocated memory was 117.4MB in the beginning and 352.3MB in the end (delta: 234.9MB). Free memory was 36.6MB in the beginning and 324.6MB in the end (delta: -288.1MB). Peak memory consumption was 8.8MB. Max. memory is 16.1GB. [2024-11-14 05:23:08,858 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.50ms. Allocated memory is still 142.6MB. Free memory is still 80.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 468.15ms. Allocated memory is still 117.4MB. Free memory was 93.4MB in the beginning and 77.4MB in the end (delta: 16.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 36.55ms. Allocated memory is still 117.4MB. Free memory was 77.4MB in the beginning and 75.9MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 22.60ms. Allocated memory is still 117.4MB. Free memory was 75.9MB in the beginning and 75.0MB in the end (delta: 909.6kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 417.42ms. Allocated memory is still 117.4MB. Free memory was 75.0MB in the beginning and 59.2MB in the end (delta: 15.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 2042.78ms. Allocated memory is still 117.4MB. Free memory was 58.6MB in the beginning and 36.6MB in the end (delta: 22.0MB). Peak memory consumption was 30.7MB. Max. memory is 16.1GB. * Witness Printer took 118.85ms. Allocated memory was 117.4MB in the beginning and 352.3MB in the end (delta: 234.9MB). Free memory was 36.6MB in the beginning and 324.6MB in the end (delta: -288.1MB). Peak memory consumption was 8.8MB. 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 - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 560]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 33 locations, 19 error locations. Started 1 CEGAR loops. OverallTime: 2.0s, OverallIterations: 7, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 117 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 117 mSDsluCounter, 59 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 7 mSDsCounter, 12 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 127 IncrementalHoareTripleChecker+Invalid, 139 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 12 mSolverCounterUnsat, 52 mSDtfsCounter, 127 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=33occurred in iteration=0, InterpolantAutomatonStates: 22, 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, 7 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.1s InterpolantComputationTime, 27 NumberOfCodeBlocks, 27 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 20 ConstructedInterpolants, 0 QuantifiedInterpolants, 278 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 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 - AllSpecificationsHoldResult: All specifications hold 19 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-11-14 05:23:08,891 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc485948-e759-4e3f-a1bc-467241dc378d/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 Result: TRUE