./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/loops/matrix-2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 48c9605d Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/loops/matrix-2.c -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux --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 Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 1414fc78e8c6ff23892599c2d6eff3c1d8d515ca94035045b938b2c8c402305b --- Real Ultimate output --- This is Ultimate 0.3.0-?-48c9605-m [2025-02-08 06:45:59,843 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-08 06:45:59,925 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2025-02-08 06:45:59,931 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-08 06:45:59,932 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-08 06:45:59,961 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-08 06:45:59,962 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-08 06:45:59,962 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-08 06:45:59,963 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-08 06:45:59,963 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-08 06:45:59,964 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-08 06:45:59,964 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-08 06:45:59,964 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-08 06:45:59,964 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-08 06:45:59,965 INFO L153 SettingsManager]: * Use SBE=true [2025-02-08 06:45:59,965 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-08 06:45:59,966 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-08 06:45:59,966 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-08 06:45:59,966 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-08 06:45:59,966 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-08 06:45:59,966 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2025-02-08 06:45:59,966 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2025-02-08 06:45:59,966 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2025-02-08 06:45:59,966 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-08 06:45:59,966 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2025-02-08 06:45:59,967 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-02-08 06:45:59,967 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-08 06:45:59,967 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-08 06:45:59,967 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-08 06:45:59,967 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-08 06:45:59,967 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-08 06:45:59,968 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-08 06:45:59,968 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-08 06:45:59,968 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-08 06:45:59,968 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-08 06:45:59,968 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-08 06:45:59,968 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-08 06:45:59,968 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-08 06:45:59,968 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-08 06:45:59,969 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-08 06:45:59,969 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-08 06:45:59,969 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-08 06:45:59,969 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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 -> /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux 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 -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1414fc78e8c6ff23892599c2d6eff3c1d8d515ca94035045b938b2c8c402305b [2025-02-08 06:46:00,289 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-08 06:46:00,297 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-08 06:46:00,300 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-08 06:46:00,302 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-08 06:46:00,302 INFO L274 PluginConnector]: CDTParser initialized [2025-02-08 06:46:00,304 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/loops/matrix-2.c [2025-02-08 06:46:01,652 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/3dda19168/00a23b30aabf4a3dbd1ba0232384a167/FLAGcb7fd01ea [2025-02-08 06:46:01,897 INFO L384 CDTParser]: Found 1 translation units. [2025-02-08 06:46:01,898 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/loops/matrix-2.c [2025-02-08 06:46:01,905 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/3dda19168/00a23b30aabf4a3dbd1ba0232384a167/FLAGcb7fd01ea [2025-02-08 06:46:01,922 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/3dda19168/00a23b30aabf4a3dbd1ba0232384a167 [2025-02-08 06:46:01,924 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-08 06:46:01,925 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-08 06:46:01,926 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-08 06:46:01,926 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-08 06:46:01,930 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-08 06:46:01,931 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 06:46:01" (1/1) ... [2025-02-08 06:46:01,932 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@52fa925b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 06:46:01, skipping insertion in model container [2025-02-08 06:46:01,932 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 06:46:01" (1/1) ... [2025-02-08 06:46:01,943 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-08 06:46:02,091 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 06:46:02,106 INFO L200 MainTranslator]: Completed pre-run [2025-02-08 06:46:02,126 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 06:46:02,143 INFO L204 MainTranslator]: Completed translation [2025-02-08 06:46:02,144 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 06:46:02 WrapperNode [2025-02-08 06:46:02,144 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-08 06:46:02,146 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-08 06:46:02,146 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-08 06:46:02,146 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-08 06:46:02,155 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 06:46:02" (1/1) ... [2025-02-08 06:46:02,163 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 06:46:02" (1/1) ... [2025-02-08 06:46:02,185 INFO L138 Inliner]: procedures = 15, calls = 15, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 64 [2025-02-08 06:46:02,186 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-08 06:46:02,186 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-08 06:46:02,188 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-08 06:46:02,188 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-08 06:46:02,195 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 06:46:02" (1/1) ... [2025-02-08 06:46:02,195 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 06:46:02" (1/1) ... [2025-02-08 06:46:02,197 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 06:46:02" (1/1) ... [2025-02-08 06:46:02,214 INFO L175 MemorySlicer]: Split 6 memory accesses to 2 slices as follows [2, 4]. 67 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0]. The 1 writes are split as follows [0, 1]. [2025-02-08 06:46:02,219 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 06:46:02" (1/1) ... [2025-02-08 06:46:02,219 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 06:46:02" (1/1) ... [2025-02-08 06:46:02,228 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 06:46:02" (1/1) ... [2025-02-08 06:46:02,229 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 06:46:02" (1/1) ... [2025-02-08 06:46:02,233 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 06:46:02" (1/1) ... [2025-02-08 06:46:02,234 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 06:46:02" (1/1) ... [2025-02-08 06:46:02,235 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-08 06:46:02,236 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-08 06:46:02,236 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-08 06:46:02,236 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-08 06:46:02,237 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 06:46:02" (1/1) ... [2025-02-08 06:46:02,244 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-08 06:46:02,263 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 06:46:02,281 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-02-08 06:46:02,288 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-02-08 06:46:02,312 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-08 06:46:02,313 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-02-08 06:46:02,313 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-02-08 06:46:02,313 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-02-08 06:46:02,313 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-02-08 06:46:02,313 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-02-08 06:46:02,313 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-08 06:46:02,313 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-08 06:46:02,313 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-02-08 06:46:02,313 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-02-08 06:46:02,314 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-02-08 06:46:02,374 INFO L257 CfgBuilder]: Building ICFG [2025-02-08 06:46:02,376 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-08 06:46:02,683 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L33: havoc __VERIFIER_assert_~cond#1;havoc __VERIFIER_assert_#in~cond#1;assume { :end_inline___VERIFIER_assert } true;main_#t~post13#1 := main_~k~0#1;main_~k~0#1 := 1 + main_#t~post13#1;havoc main_#t~post13#1; [2025-02-08 06:46:02,699 INFO L? ?]: Removed 45 outVars from TransFormulas that were not future-live. [2025-02-08 06:46:02,701 INFO L308 CfgBuilder]: Performing block encoding [2025-02-08 06:46:02,709 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-08 06:46:02,710 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-08 06:46:02,710 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 06:46:02 BoogieIcfgContainer [2025-02-08 06:46:02,710 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-08 06:46:02,712 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-08 06:46:02,713 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-08 06:46:02,717 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-08 06:46:02,717 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.02 06:46:01" (1/3) ... [2025-02-08 06:46:02,718 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b78a54e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.02 06:46:02, skipping insertion in model container [2025-02-08 06:46:02,719 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 06:46:02" (2/3) ... [2025-02-08 06:46:02,719 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b78a54e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.02 06:46:02, skipping insertion in model container [2025-02-08 06:46:02,721 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 06:46:02" (3/3) ... [2025-02-08 06:46:02,722 INFO L128 eAbstractionObserver]: Analyzing ICFG matrix-2.c [2025-02-08 06:46:02,734 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-08 06:46:02,735 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG matrix-2.c that has 1 procedures, 30 locations, 1 initial locations, 4 loop locations, and 10 error locations. [2025-02-08 06:46:02,773 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-08 06:46:02,786 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=PETRI_NET, 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;@5f9bbefd, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-08 06:46:02,787 INFO L334 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2025-02-08 06:46:02,791 INFO L276 IsEmpty]: Start isEmpty. Operand has 30 states, 18 states have (on average 1.8888888888888888) internal successors, (34), 29 states have internal predecessors, (34), 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) [2025-02-08 06:46:02,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2025-02-08 06:46:02,796 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 06:46:02,796 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2025-02-08 06:46:02,797 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 7 more)] === [2025-02-08 06:46:02,801 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 06:46:02,801 INFO L85 PathProgramCache]: Analyzing trace with hash 1951854, now seen corresponding path program 1 times [2025-02-08 06:46:02,808 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 06:46:02,811 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1148361358] [2025-02-08 06:46:02,812 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 06:46:02,812 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 06:46:02,877 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-02-08 06:46:02,899 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-02-08 06:46:02,900 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 06:46:02,900 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 06:46:03,084 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 06:46:03,085 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 06:46:03,085 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1148361358] [2025-02-08 06:46:03,086 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1148361358] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 06:46:03,086 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 06:46:03,086 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-08 06:46:03,087 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [141726830] [2025-02-08 06:46:03,088 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 06:46:03,091 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-08 06:46:03,092 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 06:46:03,113 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-08 06:46:03,113 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-08 06:46:03,115 INFO L87 Difference]: Start difference. First operand has 30 states, 18 states have (on average 1.8888888888888888) internal successors, (34), 29 states have internal predecessors, (34), 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, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 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) [2025-02-08 06:46:03,190 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 06:46:03,191 INFO L93 Difference]: Finished difference Result 29 states and 32 transitions. [2025-02-08 06:46:03,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-08 06:46:03,194 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 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 [2025-02-08 06:46:03,194 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 06:46:03,199 INFO L225 Difference]: With dead ends: 29 [2025-02-08 06:46:03,199 INFO L226 Difference]: Without dead ends: 25 [2025-02-08 06:46:03,201 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-08 06:46:03,203 INFO L435 NwaCegarLoop]: 18 mSDtfsCounter, 14 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 40 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-02-08 06:46:03,203 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 40 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-02-08 06:46:03,213 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2025-02-08 06:46:03,222 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25. [2025-02-08 06:46:03,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25 states, 16 states have (on average 1.75) internal successors, (28), 24 states have internal predecessors, (28), 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) [2025-02-08 06:46:03,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 28 transitions. [2025-02-08 06:46:03,227 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 28 transitions. Word has length 4 [2025-02-08 06:46:03,227 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 06:46:03,227 INFO L471 AbstractCegarLoop]: Abstraction has 25 states and 28 transitions. [2025-02-08 06:46:03,227 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 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) [2025-02-08 06:46:03,227 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 28 transitions. [2025-02-08 06:46:03,228 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2025-02-08 06:46:03,228 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 06:46:03,228 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2025-02-08 06:46:03,228 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-02-08 06:46:03,228 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr8REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 7 more)] === [2025-02-08 06:46:03,229 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 06:46:03,229 INFO L85 PathProgramCache]: Analyzing trace with hash 1969150, now seen corresponding path program 1 times [2025-02-08 06:46:03,229 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 06:46:03,229 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [435519364] [2025-02-08 06:46:03,229 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 06:46:03,229 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 06:46:03,236 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-02-08 06:46:03,245 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-02-08 06:46:03,245 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 06:46:03,246 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 06:46:03,301 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 06:46:03,301 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 06:46:03,301 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [435519364] [2025-02-08 06:46:03,301 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [435519364] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 06:46:03,302 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 06:46:03,302 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-02-08 06:46:03,302 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [902234679] [2025-02-08 06:46:03,302 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 06:46:03,303 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-08 06:46:03,303 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 06:46:03,303 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-08 06:46:03,303 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-08 06:46:03,304 INFO L87 Difference]: Start difference. First operand 25 states and 28 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) [2025-02-08 06:46:03,340 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 06:46:03,341 INFO L93 Difference]: Finished difference Result 21 states and 24 transitions. [2025-02-08 06:46:03,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-08 06:46:03,341 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 [2025-02-08 06:46:03,341 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 06:46:03,342 INFO L225 Difference]: With dead ends: 21 [2025-02-08 06:46:03,342 INFO L226 Difference]: Without dead ends: 21 [2025-02-08 06:46:03,342 INFO L434 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 [2025-02-08 06:46:03,343 INFO L435 NwaCegarLoop]: 16 mSDtfsCounter, 13 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 19 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-08 06:46:03,343 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 19 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-08 06:46:03,343 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2025-02-08 06:46:03,347 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2025-02-08 06:46:03,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 16 states have (on average 1.5) internal successors, (24), 20 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) [2025-02-08 06:46:03,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 24 transitions. [2025-02-08 06:46:03,349 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 24 transitions. Word has length 4 [2025-02-08 06:46:03,349 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 06:46:03,349 INFO L471 AbstractCegarLoop]: Abstraction has 21 states and 24 transitions. [2025-02-08 06:46:03,349 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) [2025-02-08 06:46:03,349 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 24 transitions. [2025-02-08 06:46:03,350 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2025-02-08 06:46:03,350 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 06:46:03,350 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2025-02-08 06:46:03,350 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-02-08 06:46:03,350 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr9REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 7 more)] === [2025-02-08 06:46:03,351 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 06:46:03,351 INFO L85 PathProgramCache]: Analyzing trace with hash 1969151, now seen corresponding path program 1 times [2025-02-08 06:46:03,351 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 06:46:03,351 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1647630890] [2025-02-08 06:46:03,351 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 06:46:03,351 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 06:46:03,359 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-02-08 06:46:03,400 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-02-08 06:46:03,400 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 06:46:03,400 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-02-08 06:46:03,405 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1190762591] [2025-02-08 06:46:03,405 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 06:46:03,406 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 06:46:03,406 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 06:46:03,410 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 06:46:03,412 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-02-08 06:46:03,451 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-02-08 06:46:03,490 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-02-08 06:46:03,490 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 06:46:03,490 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-08 06:46:03,490 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-08 06:46:03,496 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-02-08 06:46:03,501 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-02-08 06:46:03,501 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 06:46:03,501 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-08 06:46:03,514 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-08 06:46:03,515 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-02-08 06:46:03,516 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr9REQUIRES_VIOLATIONMEMORY_DEREFERENCE (9 of 10 remaining) [2025-02-08 06:46:03,519 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (8 of 10 remaining) [2025-02-08 06:46:03,519 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (7 of 10 remaining) [2025-02-08 06:46:03,519 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 10 remaining) [2025-02-08 06:46:03,519 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 10 remaining) [2025-02-08 06:46:03,519 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 10 remaining) [2025-02-08 06:46:03,520 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 10 remaining) [2025-02-08 06:46:03,520 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (2 of 10 remaining) [2025-02-08 06:46:03,520 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE (1 of 10 remaining) [2025-02-08 06:46:03,520 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8REQUIRES_VIOLATIONMEMORY_DEREFERENCE (0 of 10 remaining) [2025-02-08 06:46:03,526 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2025-02-08 06:46:03,720 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 06:46:03,723 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2025-02-08 06:46:03,738 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-02-08 06:46:03,740 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.02 06:46:03 BoogieIcfgContainer [2025-02-08 06:46:03,740 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-02-08 06:46:03,741 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-02-08 06:46:03,741 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-02-08 06:46:03,741 INFO L274 PluginConnector]: Witness Printer initialized [2025-02-08 06:46:03,742 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 06:46:02" (3/4) ... [2025-02-08 06:46:03,742 INFO L140 WitnessPrinter]: Generating witness for reachability counterexample [2025-02-08 06:46:03,777 INFO L127 tionWitnessGenerator]: Generated YAML witness of length 3. [2025-02-08 06:46:03,826 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-02-08 06:46:03,827 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.yml [2025-02-08 06:46:03,827 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-02-08 06:46:03,828 INFO L158 Benchmark]: Toolchain (without parser) took 1902.50ms. Allocated memory is still 142.6MB. Free memory was 108.9MB in the beginning and 105.6MB in the end (delta: 3.3MB). Peak memory consumption was 80.3MB. Max. memory is 16.1GB. [2025-02-08 06:46:03,828 INFO L158 Benchmark]: CDTParser took 0.69ms. Allocated memory is still 167.8MB. Free memory is still 94.1MB. There was no memory consumed. Max. memory is 16.1GB. [2025-02-08 06:46:03,828 INFO L158 Benchmark]: CACSL2BoogieTranslator took 218.82ms. Allocated memory is still 142.6MB. Free memory was 108.6MB in the beginning and 97.8MB in the end (delta: 10.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-02-08 06:46:03,828 INFO L158 Benchmark]: Boogie Procedure Inliner took 40.01ms. Allocated memory is still 142.6MB. Free memory was 97.8MB in the beginning and 96.4MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-08 06:46:03,829 INFO L158 Benchmark]: Boogie Preprocessor took 49.32ms. Allocated memory is still 142.6MB. Free memory was 96.4MB in the beginning and 95.0MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-08 06:46:03,829 INFO L158 Benchmark]: IcfgBuilder took 474.09ms. Allocated memory is still 142.6MB. Free memory was 95.0MB in the beginning and 78.6MB in the end (delta: 16.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-02-08 06:46:03,829 INFO L158 Benchmark]: TraceAbstraction took 1027.78ms. Allocated memory is still 142.6MB. Free memory was 78.3MB in the beginning and 39.9MB in the end (delta: 38.4MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. [2025-02-08 06:46:03,829 INFO L158 Benchmark]: Witness Printer took 86.15ms. Allocated memory is still 142.6MB. Free memory was 39.9MB in the beginning and 105.6MB in the end (delta: -65.7MB). Peak memory consumption was 13.1MB. Max. memory is 16.1GB. [2025-02-08 06:46:03,831 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.69ms. Allocated memory is still 167.8MB. Free memory is still 94.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 218.82ms. Allocated memory is still 142.6MB. Free memory was 108.6MB in the beginning and 97.8MB in the end (delta: 10.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 40.01ms. Allocated memory is still 142.6MB. Free memory was 97.8MB in the beginning and 96.4MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 49.32ms. Allocated memory is still 142.6MB. Free memory was 96.4MB in the beginning and 95.0MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * IcfgBuilder took 474.09ms. Allocated memory is still 142.6MB. Free memory was 95.0MB in the beginning and 78.6MB in the end (delta: 16.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 1027.78ms. Allocated memory is still 142.6MB. Free memory was 78.3MB in the beginning and 39.9MB in the end (delta: 38.4MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. * Witness Printer took 86.15ms. Allocated memory is still 142.6MB. Free memory was 39.9MB in the beginning and 105.6MB in the end (delta: -65.7MB). Peak memory consumption was 13.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: -1]: pointer dereference may fail pointer dereference may fail We found a FailurePath: [L16] unsigned int N_LIN=__VERIFIER_nondet_uint(); [L17] unsigned int N_COL=__VERIFIER_nondet_uint(); [L18] unsigned int j,k; [L19] int matriz[N_COL][N_LIN], maior; [L21] maior = __VERIFIER_nondet_int() [L22] j=0 VAL [N_COL=1, N_LIN=5368709120, j=0, maior=-2147483648, matriz={4:0}] [L22] COND TRUE j