./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/ldv-regression/test_union_cast.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 8fc3dc66 Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/ldv-regression/test_union_cast.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/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 875e0e748b960f3d62b67d726d26e4717d072c7e6207f8e7e9767eeeb5eb8509 --- Real Ultimate output --- This is Ultimate 0.3.0-?-8fc3dc6-m [2025-03-17 11:53:03,585 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-17 11:53:03,644 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2025-03-17 11:53:03,649 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-17 11:53:03,651 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-17 11:53:03,672 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-17 11:53:03,673 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-17 11:53:03,673 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-17 11:53:03,673 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-17 11:53:03,673 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-17 11:53:03,674 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-17 11:53:03,674 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-17 11:53:03,674 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-17 11:53:03,675 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-17 11:53:03,675 INFO L153 SettingsManager]: * Use SBE=true [2025-03-17 11:53:03,675 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-17 11:53:03,675 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-17 11:53:03,675 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-17 11:53:03,675 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-17 11:53:03,675 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-17 11:53:03,676 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2025-03-17 11:53:03,676 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2025-03-17 11:53:03,676 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2025-03-17 11:53:03,676 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-17 11:53:03,676 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2025-03-17 11:53:03,676 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-03-17 11:53:03,676 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-17 11:53:03,676 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-17 11:53:03,676 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-17 11:53:03,676 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-17 11:53:03,676 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-17 11:53:03,676 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-17 11:53:03,676 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-17 11:53:03,677 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-17 11:53:03,677 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-17 11:53:03,677 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-17 11:53:03,677 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-17 11:53:03,677 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-17 11:53:03,677 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-17 11:53:03,677 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-17 11:53:03,677 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-17 11:53:03,677 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-17 11:53:03,677 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/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 -> 875e0e748b960f3d62b67d726d26e4717d072c7e6207f8e7e9767eeeb5eb8509 [2025-03-17 11:53:03,892 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-17 11:53:03,898 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-17 11:53:03,901 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-17 11:53:03,902 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-17 11:53:03,902 INFO L274 PluginConnector]: CDTParser initialized [2025-03-17 11:53:03,903 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-regression/test_union_cast.i [2025-03-17 11:53:05,044 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/64b6b4ac5/506e69f986e34a2eb53e6374387ebfa1/FLAG0df59fdad [2025-03-17 11:53:05,245 INFO L384 CDTParser]: Found 1 translation units. [2025-03-17 11:53:05,246 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-regression/test_union_cast.i [2025-03-17 11:53:05,259 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/64b6b4ac5/506e69f986e34a2eb53e6374387ebfa1/FLAG0df59fdad [2025-03-17 11:53:05,622 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/64b6b4ac5/506e69f986e34a2eb53e6374387ebfa1 [2025-03-17 11:53:05,624 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-17 11:53:05,626 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-17 11:53:05,628 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-17 11:53:05,628 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-17 11:53:05,632 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-17 11:53:05,633 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.03 11:53:05" (1/1) ... [2025-03-17 11:53:05,635 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2f7a3495 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:53:05, skipping insertion in model container [2025-03-17 11:53:05,635 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.03 11:53:05" (1/1) ... [2025-03-17 11:53:05,644 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-17 11:53:05,759 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-17 11:53:05,766 INFO L200 MainTranslator]: Completed pre-run [2025-03-17 11:53:05,775 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-17 11:53:05,786 INFO L204 MainTranslator]: Completed translation [2025-03-17 11:53:05,786 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:53:05 WrapperNode [2025-03-17 11:53:05,787 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-17 11:53:05,788 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-17 11:53:05,788 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-17 11:53:05,788 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-17 11:53:05,792 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:53:05" (1/1) ... [2025-03-17 11:53:05,795 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:53:05" (1/1) ... [2025-03-17 11:53:05,807 INFO L138 Inliner]: procedures = 15, calls = 15, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 26 [2025-03-17 11:53:05,807 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-17 11:53:05,807 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-17 11:53:05,807 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-17 11:53:05,807 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-17 11:53:05,812 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:53:05" (1/1) ... [2025-03-17 11:53:05,812 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:53:05" (1/1) ... [2025-03-17 11:53:05,813 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:53:05" (1/1) ... [2025-03-17 11:53:05,822 INFO L175 MemorySlicer]: Split 5 memory accesses to 2 slices as follows [2, 3]. 60 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0]. The 2 writes are split as follows [0, 2]. [2025-03-17 11:53:05,822 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:53:05" (1/1) ... [2025-03-17 11:53:05,822 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:53:05" (1/1) ... [2025-03-17 11:53:05,825 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:53:05" (1/1) ... [2025-03-17 11:53:05,826 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:53:05" (1/1) ... [2025-03-17 11:53:05,826 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:53:05" (1/1) ... [2025-03-17 11:53:05,827 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:53:05" (1/1) ... [2025-03-17 11:53:05,828 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-17 11:53:05,828 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-17 11:53:05,828 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-17 11:53:05,828 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-17 11:53:05,829 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:53:05" (1/1) ... [2025-03-17 11:53:05,836 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-17 11:53:05,844 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 11:53:05,861 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-03-17 11:53:05,863 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-03-17 11:53:05,879 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-17 11:53:05,879 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-17 11:53:05,879 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-03-17 11:53:05,879 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-03-17 11:53:05,879 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-03-17 11:53:05,879 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-03-17 11:53:05,880 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#0 [2025-03-17 11:53:05,880 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#1 [2025-03-17 11:53:05,880 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-17 11:53:05,880 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-17 11:53:05,880 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-03-17 11:53:05,880 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-03-17 11:53:05,880 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-03-17 11:53:05,920 INFO L256 CfgBuilder]: Building ICFG [2025-03-17 11:53:05,921 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-17 11:53:06,004 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L28: call ULTIMATE.dealloc(main_~#llvm_cbe_var~0#1.base, main_~#llvm_cbe_var~0#1.offset);havoc main_~#llvm_cbe_var~0#1.base, main_~#llvm_cbe_var~0#1.offset; [2025-03-17 11:53:06,008 INFO L? ?]: Removed 16 outVars from TransFormulas that were not future-live. [2025-03-17 11:53:06,008 INFO L307 CfgBuilder]: Performing block encoding [2025-03-17 11:53:06,014 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-17 11:53:06,014 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-17 11:53:06,014 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.03 11:53:06 BoogieIcfgContainer [2025-03-17 11:53:06,014 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-17 11:53:06,016 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-17 11:53:06,016 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-17 11:53:06,019 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-17 11:53:06,019 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.03 11:53:05" (1/3) ... [2025-03-17 11:53:06,019 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3eecf302 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.03 11:53:06, skipping insertion in model container [2025-03-17 11:53:06,019 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:53:05" (2/3) ... [2025-03-17 11:53:06,019 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3eecf302 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.03 11:53:06, skipping insertion in model container [2025-03-17 11:53:06,019 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.03 11:53:06" (3/3) ... [2025-03-17 11:53:06,020 INFO L128 eAbstractionObserver]: Analyzing ICFG test_union_cast.i [2025-03-17 11:53:06,029 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-17 11:53:06,031 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG test_union_cast.i that has 1 procedures, 18 locations, 1 initial locations, 0 loop locations, and 8 error locations. [2025-03-17 11:53:06,053 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-17 11:53:06,060 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;@6e631941, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-17 11:53:06,060 INFO L334 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2025-03-17 11:53:06,064 INFO L276 IsEmpty]: Start isEmpty. Operand has 18 states, 9 states have (on average 2.0) internal successors, (18), 17 states have internal predecessors, (18), 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) [2025-03-17 11:53:06,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2025-03-17 11:53:06,067 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 11:53:06,068 INFO L218 NwaCegarLoop]: trace histogram [1, 1] [2025-03-17 11:53:06,068 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 5 more)] === [2025-03-17 11:53:06,072 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 11:53:06,072 INFO L85 PathProgramCache]: Analyzing trace with hash 1535, now seen corresponding path program 1 times [2025-03-17 11:53:06,078 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 11:53:06,079 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [624698498] [2025-03-17 11:53:06,079 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 11:53:06,081 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 11:53:06,128 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-03-17 11:53:06,138 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-03-17 11:53:06,138 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 11:53:06,138 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 11:53:06,197 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 11:53:06,197 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 11:53:06,197 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [624698498] [2025-03-17 11:53:06,200 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [624698498] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 11:53:06,200 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 11:53:06,200 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-03-17 11:53:06,201 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1295360436] [2025-03-17 11:53:06,201 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 11:53:06,204 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-17 11:53:06,205 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 11:53:06,219 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-17 11:53:06,219 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-17 11:53:06,220 INFO L87 Difference]: Start difference. First operand has 18 states, 9 states have (on average 2.0) internal successors, (18), 17 states have internal predecessors, (18), 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) [2025-03-17 11:53:06,242 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 11:53:06,243 INFO L93 Difference]: Finished difference Result 15 states and 14 transitions. [2025-03-17 11:53:06,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-17 11:53:06,244 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 [2025-03-17 11:53:06,245 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 11:53:06,249 INFO L225 Difference]: With dead ends: 15 [2025-03-17 11:53:06,249 INFO L226 Difference]: Without dead ends: 13 [2025-03-17 11:53:06,250 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 [2025-03-17 11:53:06,255 INFO L435 NwaCegarLoop]: 7 mSDtfsCounter, 6 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 8 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-17 11:53:06,256 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 8 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-17 11:53:06,264 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2025-03-17 11:53:06,270 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2025-03-17 11:53:06,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 8 states have (on average 1.5) internal successors, (12), 12 states have internal predecessors, (12), 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) [2025-03-17 11:53:06,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 12 transitions. [2025-03-17 11:53:06,273 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 12 transitions. Word has length 2 [2025-03-17 11:53:06,273 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 11:53:06,273 INFO L471 AbstractCegarLoop]: Abstraction has 13 states and 12 transitions. [2025-03-17 11:53:06,273 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) [2025-03-17 11:53:06,274 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 12 transitions. [2025-03-17 11:53:06,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2025-03-17 11:53:06,274 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 11:53:06,274 INFO L218 NwaCegarLoop]: trace histogram [1, 1] [2025-03-17 11:53:06,274 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-03-17 11:53:06,274 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 5 more)] === [2025-03-17 11:53:06,274 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 11:53:06,275 INFO L85 PathProgramCache]: Analyzing trace with hash 1536, now seen corresponding path program 1 times [2025-03-17 11:53:06,275 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 11:53:06,275 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1997219106] [2025-03-17 11:53:06,275 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 11:53:06,275 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 11:53:06,279 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-03-17 11:53:06,284 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-03-17 11:53:06,284 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 11:53:06,285 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 11:53:06,342 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 11:53:06,343 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 11:53:06,343 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1997219106] [2025-03-17 11:53:06,343 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1997219106] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 11:53:06,343 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 11:53:06,343 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-03-17 11:53:06,343 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [205033284] [2025-03-17 11:53:06,343 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 11:53:06,344 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-17 11:53:06,344 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 11:53:06,344 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-17 11:53:06,344 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-17 11:53:06,345 INFO L87 Difference]: Start difference. First operand 13 states and 12 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) [2025-03-17 11:53:06,355 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 11:53:06,355 INFO L93 Difference]: Finished difference Result 10 states and 9 transitions. [2025-03-17 11:53:06,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-17 11:53:06,359 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 [2025-03-17 11:53:06,359 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 11:53:06,360 INFO L225 Difference]: With dead ends: 10 [2025-03-17 11:53:06,360 INFO L226 Difference]: Without dead ends: 10 [2025-03-17 11:53:06,360 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 [2025-03-17 11:53:06,361 INFO L435 NwaCegarLoop]: 6 mSDtfsCounter, 2 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 10 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-17 11:53:06,364 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 10 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-17 11:53:06,364 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states. [2025-03-17 11:53:06,365 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 10. [2025-03-17 11:53:06,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10 states, 8 states have (on average 1.125) internal successors, (9), 9 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) [2025-03-17 11:53:06,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 9 transitions. [2025-03-17 11:53:06,366 INFO L78 Accepts]: Start accepts. Automaton has 10 states and 9 transitions. Word has length 2 [2025-03-17 11:53:06,366 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 11:53:06,366 INFO L471 AbstractCegarLoop]: Abstraction has 10 states and 9 transitions. [2025-03-17 11:53:06,366 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) [2025-03-17 11:53:06,366 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 9 transitions. [2025-03-17 11:53:06,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2025-03-17 11:53:06,366 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 11:53:06,367 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2025-03-17 11:53:06,367 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-03-17 11:53:06,367 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 5 more)] === [2025-03-17 11:53:06,367 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 11:53:06,367 INFO L85 PathProgramCache]: Analyzing trace with hash 1417047578, now seen corresponding path program 1 times [2025-03-17 11:53:06,368 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 11:53:06,368 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [582073473] [2025-03-17 11:53:06,368 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 11:53:06,368 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 11:53:06,374 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-03-17 11:53:06,390 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-03-17 11:53:06,390 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 11:53:06,390 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 11:53:06,523 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 11:53:06,524 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 11:53:06,524 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [582073473] [2025-03-17 11:53:06,524 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [582073473] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 11:53:06,524 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 11:53:06,527 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-17 11:53:06,527 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1205598134] [2025-03-17 11:53:06,527 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 11:53:06,527 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-17 11:53:06,527 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 11:53:06,528 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-17 11:53:06,528 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-17 11:53:06,528 INFO L87 Difference]: Start difference. First operand 10 states and 9 transitions. Second operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 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) [2025-03-17 11:53:06,542 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 11:53:06,542 INFO L93 Difference]: Finished difference Result 8 states and 7 transitions. [2025-03-17 11:53:06,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-17 11:53:06,543 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 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 6 [2025-03-17 11:53:06,543 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 11:53:06,543 INFO L225 Difference]: With dead ends: 8 [2025-03-17 11:53:06,543 INFO L226 Difference]: Without dead ends: 8 [2025-03-17 11:53:06,543 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-17 11:53:06,544 INFO L435 NwaCegarLoop]: 5 mSDtfsCounter, 0 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 9 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-17 11:53:06,544 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 9 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-17 11:53:06,545 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states. [2025-03-17 11:53:06,545 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 8. [2025-03-17 11:53:06,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 7 states have (on average 1.0) internal successors, (7), 7 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 11:53:06,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 7 transitions. [2025-03-17 11:53:06,546 INFO L78 Accepts]: Start accepts. Automaton has 8 states and 7 transitions. Word has length 6 [2025-03-17 11:53:06,546 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 11:53:06,546 INFO L471 AbstractCegarLoop]: Abstraction has 8 states and 7 transitions. [2025-03-17 11:53:06,546 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 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) [2025-03-17 11:53:06,546 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 7 transitions. [2025-03-17 11:53:06,546 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2025-03-17 11:53:06,546 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 11:53:06,547 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2025-03-17 11:53:06,547 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-03-17 11:53:06,547 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 5 more)] === [2025-03-17 11:53:06,547 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 11:53:06,547 INFO L85 PathProgramCache]: Analyzing trace with hash 978802858, now seen corresponding path program 1 times [2025-03-17 11:53:06,547 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 11:53:06,547 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2031797271] [2025-03-17 11:53:06,547 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 11:53:06,547 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 11:53:06,553 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-03-17 11:53:06,560 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-03-17 11:53:06,562 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 11:53:06,562 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 11:53:06,658 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 11:53:06,659 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 11:53:06,659 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2031797271] [2025-03-17 11:53:06,659 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2031797271] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 11:53:06,659 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 11:53:06,659 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-17 11:53:06,659 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [48571874] [2025-03-17 11:53:06,659 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 11:53:06,659 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-17 11:53:06,659 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 11:53:06,659 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-17 11:53:06,660 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-17 11:53:06,660 INFO L87 Difference]: Start difference. First operand 8 states and 7 transitions. Second operand has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 11:53:06,672 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 11:53:06,672 INFO L93 Difference]: Finished difference Result 7 states and 6 transitions. [2025-03-17 11:53:06,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-17 11:53:06,673 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2025-03-17 11:53:06,673 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 11:53:06,673 INFO L225 Difference]: With dead ends: 7 [2025-03-17 11:53:06,673 INFO L226 Difference]: Without dead ends: 0 [2025-03-17 11:53:06,673 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 [2025-03-17 11:53:06,674 INFO L435 NwaCegarLoop]: 2 mSDtfsCounter, 0 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 3 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-17 11:53:06,674 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 3 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-17 11:53:06,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2025-03-17 11:53:06,674 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2025-03-17 11:53:06,674 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) [2025-03-17 11:53:06,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2025-03-17 11:53:06,675 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 7 [2025-03-17 11:53:06,675 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 11:53:06,675 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-03-17 11:53:06,675 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 11:53:06,675 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2025-03-17 11:53:06,675 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2025-03-17 11:53:06,678 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (7 of 8 remaining) [2025-03-17 11:53:06,678 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (6 of 8 remaining) [2025-03-17 11:53:06,678 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 8 remaining) [2025-03-17 11:53:06,678 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 8 remaining) [2025-03-17 11:53:06,678 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 8 remaining) [2025-03-17 11:53:06,678 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (2 of 8 remaining) [2025-03-17 11:53:06,678 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (1 of 8 remaining) [2025-03-17 11:53:06,678 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE (0 of 8 remaining) [2025-03-17 11:53:06,678 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-03-17 11:53:06,681 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2025-03-17 11:53:06,682 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-03-17 11:53:06,685 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.03 11:53:06 BoogieIcfgContainer [2025-03-17 11:53:06,685 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-03-17 11:53:06,686 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-03-17 11:53:06,686 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-03-17 11:53:06,686 INFO L274 PluginConnector]: Witness Printer initialized [2025-03-17 11:53:06,686 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.03 11:53:06" (3/4) ... [2025-03-17 11:53:06,688 INFO L146 WitnessPrinter]: Generating witness for correct program [2025-03-17 11:53:06,692 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2025-03-17 11:53:06,693 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2025-03-17 11:53:06,693 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2025-03-17 11:53:06,693 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2025-03-17 11:53:06,753 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-03-17 11:53:06,753 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2025-03-17 11:53:06,753 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-03-17 11:53:06,755 INFO L158 Benchmark]: Toolchain (without parser) took 1127.43ms. Allocated memory is still 142.6MB. Free memory was 113.2MB in the beginning and 104.0MB in the end (delta: 9.2MB). Peak memory consumption was 4.4MB. Max. memory is 16.1GB. [2025-03-17 11:53:06,755 INFO L158 Benchmark]: CDTParser took 0.45ms. Allocated memory is still 201.3MB. Free memory is still 123.4MB. There was no memory consumed. Max. memory is 16.1GB. [2025-03-17 11:53:06,755 INFO L158 Benchmark]: CACSL2BoogieTranslator took 159.12ms. Allocated memory is still 142.6MB. Free memory was 113.2MB in the beginning and 101.3MB in the end (delta: 11.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-17 11:53:06,755 INFO L158 Benchmark]: Boogie Procedure Inliner took 19.19ms. Allocated memory is still 142.6MB. Free memory was 101.3MB in the beginning and 100.3MB in the end (delta: 996.3kB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-17 11:53:06,756 INFO L158 Benchmark]: Boogie Preprocessor took 20.47ms. Allocated memory is still 142.6MB. Free memory was 100.3MB in the beginning and 98.6MB in the end (delta: 1.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-17 11:53:06,756 INFO L158 Benchmark]: IcfgBuilder took 186.32ms. Allocated memory is still 142.6MB. Free memory was 98.6MB in the beginning and 87.7MB in the end (delta: 10.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-17 11:53:06,756 INFO L158 Benchmark]: TraceAbstraction took 669.72ms. Allocated memory is still 142.6MB. Free memory was 86.7MB in the beginning and 108.2MB in the end (delta: -21.5MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-17 11:53:06,756 INFO L158 Benchmark]: Witness Printer took 66.86ms. Allocated memory is still 142.6MB. Free memory was 108.2MB in the beginning and 104.0MB in the end (delta: 4.2MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-17 11:53:06,757 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.45ms. Allocated memory is still 201.3MB. Free memory is still 123.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 159.12ms. Allocated memory is still 142.6MB. Free memory was 113.2MB in the beginning and 101.3MB in the end (delta: 11.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 19.19ms. Allocated memory is still 142.6MB. Free memory was 101.3MB in the beginning and 100.3MB in the end (delta: 996.3kB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 20.47ms. Allocated memory is still 142.6MB. Free memory was 100.3MB in the beginning and 98.6MB in the end (delta: 1.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * IcfgBuilder took 186.32ms. Allocated memory is still 142.6MB. Free memory was 98.6MB in the beginning and 87.7MB in the end (delta: 10.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 669.72ms. Allocated memory is still 142.6MB. Free memory was 86.7MB in the beginning and 108.2MB in the end (delta: -21.5MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 66.86ms. Allocated memory is still 142.6MB. Free memory was 108.2MB in the beginning and 104.0MB in the end (delta: 4.2MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 21]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 3]: all allocated memory was freed For all program executions holds that all allocated memory was freed 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 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 18 locations, 18 edges, 8 error locations. Started 1 CEGAR loops. OverallTime: 0.6s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 8 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 8 mSDsluCounter, 30 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 10 mSDsCounter, 4 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 37 IncrementalHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 4 mSolverCounterUnsat, 20 mSDtfsCounter, 37 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=18occurred in iteration=0, InterpolantAutomatonStates: 14, 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, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 17 NumberOfCodeBlocks, 17 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 13 ConstructedInterpolants, 0 QuantifiedInterpolants, 62 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 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, ConComCheckerStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 8 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2025-03-17 11:53:06,772 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (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