./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/valid-memsafety.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-regression/test_union_cast.c_1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 84cfde4a Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-regression/test_union_cast.c_1.i -s /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-clean/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 ce4995349d24449aa4238d5b91c222d154caecb38e46c9add0a28b7c652c35ae --- Real Ultimate output --- This is Ultimate 0.2.5-dev-84cfde4 [2024-10-11 17:54:35,664 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-11 17:54:35,735 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-10-11 17:54:35,741 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-11 17:54:35,742 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-11 17:54:35,771 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-11 17:54:35,774 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-11 17:54:35,774 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-11 17:54:35,775 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-11 17:54:35,775 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-11 17:54:35,776 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-11 17:54:35,776 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-11 17:54:35,777 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-11 17:54:35,779 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-11 17:54:35,779 INFO L153 SettingsManager]: * Use SBE=true [2024-10-11 17:54:35,780 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-11 17:54:35,780 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-11 17:54:35,780 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-11 17:54:35,781 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-11 17:54:35,783 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-11 17:54:35,784 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-10-11 17:54:35,786 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-10-11 17:54:35,786 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-10-11 17:54:35,787 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-11 17:54:35,787 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-10-11 17:54:35,788 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-11 17:54:35,788 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-11 17:54:35,788 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-11 17:54:35,788 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-11 17:54:35,789 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-11 17:54:35,789 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-11 17:54:35,790 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-11 17:54:35,790 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-11 17:54:35,791 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 17:54:35,791 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-11 17:54:35,792 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-11 17:54:35,792 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-11 17:54:35,792 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-11 17:54:35,792 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-11 17:54:35,793 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-11 17:54:35,793 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-11 17:54:35,793 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-11 17:54:35,794 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ce4995349d24449aa4238d5b91c222d154caecb38e46c9add0a28b7c652c35ae [2024-10-11 17:54:36,097 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-11 17:54:36,123 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-11 17:54:36,127 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-11 17:54:36,128 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-11 17:54:36,128 INFO L274 PluginConnector]: CDTParser initialized [2024-10-11 17:54:36,130 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-regression/test_union_cast.c_1.i [2024-10-11 17:54:37,583 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-11 17:54:37,778 INFO L384 CDTParser]: Found 1 translation units. [2024-10-11 17:54:37,779 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-regression/test_union_cast.c_1.i [2024-10-11 17:54:37,789 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/fbb57de01/16fa074737b6423f9d392a5ff51a5d88/FLAG93e4d7553 [2024-10-11 17:54:38,165 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/fbb57de01/16fa074737b6423f9d392a5ff51a5d88 [2024-10-11 17:54:38,167 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-11 17:54:38,168 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-11 17:54:38,169 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-11 17:54:38,170 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-11 17:54:38,174 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-11 17:54:38,174 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 05:54:38" (1/1) ... [2024-10-11 17:54:38,175 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@72acc1f0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:54:38, skipping insertion in model container [2024-10-11 17:54:38,175 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 05:54:38" (1/1) ... [2024-10-11 17:54:38,194 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-11 17:54:38,383 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 17:54:38,393 INFO L200 MainTranslator]: Completed pre-run [2024-10-11 17:54:38,404 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 17:54:38,421 INFO L204 MainTranslator]: Completed translation [2024-10-11 17:54:38,421 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:54:38 WrapperNode [2024-10-11 17:54:38,421 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-11 17:54:38,422 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-11 17:54:38,422 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-11 17:54:38,422 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-11 17:54:38,428 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:54:38" (1/1) ... [2024-10-11 17:54:38,436 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:54:38" (1/1) ... [2024-10-11 17:54:38,448 INFO L138 Inliner]: procedures = 15, calls = 15, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 26 [2024-10-11 17:54:38,449 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-11 17:54:38,449 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-11 17:54:38,449 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-11 17:54:38,449 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-11 17:54:38,456 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:54:38" (1/1) ... [2024-10-11 17:54:38,457 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:54:38" (1/1) ... [2024-10-11 17:54:38,458 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:54:38" (1/1) ... [2024-10-11 17:54:38,471 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]. [2024-10-11 17:54:38,471 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:54:38" (1/1) ... [2024-10-11 17:54:38,471 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:54:38" (1/1) ... [2024-10-11 17:54:38,477 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:54:38" (1/1) ... [2024-10-11 17:54:38,479 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:54:38" (1/1) ... [2024-10-11 17:54:38,480 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:54:38" (1/1) ... [2024-10-11 17:54:38,481 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:54:38" (1/1) ... [2024-10-11 17:54:38,483 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-11 17:54:38,484 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-11 17:54:38,484 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-11 17:54:38,484 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-11 17:54:38,485 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:54:38" (1/1) ... [2024-10-11 17:54:38,491 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 17:54:38,502 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 17:54:38,518 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-11 17:54:38,521 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-11 17:54:38,561 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-11 17:54:38,562 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-11 17:54:38,562 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-10-11 17:54:38,562 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-10-11 17:54:38,562 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-10-11 17:54:38,562 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-10-11 17:54:38,562 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#0 [2024-10-11 17:54:38,562 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#1 [2024-10-11 17:54:38,562 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-11 17:54:38,563 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-11 17:54:38,563 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-10-11 17:54:38,563 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-10-11 17:54:38,563 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-10-11 17:54:38,626 INFO L238 CfgBuilder]: Building ICFG [2024-10-11 17:54:38,627 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-11 17:54:38,780 INFO L? ?]: Removed 16 outVars from TransFormulas that were not future-live. [2024-10-11 17:54:38,781 INFO L287 CfgBuilder]: Performing block encoding [2024-10-11 17:54:38,806 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-11 17:54:38,806 INFO L314 CfgBuilder]: Removed 0 assume(true) statements. [2024-10-11 17:54:38,807 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 05:54:38 BoogieIcfgContainer [2024-10-11 17:54:38,807 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-11 17:54:38,809 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-11 17:54:38,809 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-11 17:54:38,813 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-11 17:54:38,813 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 05:54:38" (1/3) ... [2024-10-11 17:54:38,814 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d42b48d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 05:54:38, skipping insertion in model container [2024-10-11 17:54:38,814 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:54:38" (2/3) ... [2024-10-11 17:54:38,814 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d42b48d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 05:54:38, skipping insertion in model container [2024-10-11 17:54:38,814 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 05:54:38" (3/3) ... [2024-10-11 17:54:38,815 INFO L112 eAbstractionObserver]: Analyzing ICFG test_union_cast.c_1.i [2024-10-11 17:54:38,831 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-11 17:54:38,831 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2024-10-11 17:54:38,882 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-11 17:54:38,889 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;@7278839b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-11 17:54:38,890 INFO L334 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2024-10-11 17:54:38,894 INFO L276 IsEmpty]: Start isEmpty. Operand has 17 states, 8 states have (on average 2.125) internal successors, (17), 16 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 17:54:38,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2024-10-11 17:54:38,900 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 17:54:38,900 INFO L215 NwaCegarLoop]: trace histogram [1, 1] [2024-10-11 17:54:38,901 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 5 more)] === [2024-10-11 17:54:38,907 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:54:38,908 INFO L85 PathProgramCache]: Analyzing trace with hash 1957, now seen corresponding path program 1 times [2024-10-11 17:54:38,916 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:54:38,917 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [489318524] [2024-10-11 17:54:38,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:54:38,918 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:54:39,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:54:39,112 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 17:54:39,113 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 17:54:39,113 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [489318524] [2024-10-11 17:54:39,114 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [489318524] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 17:54:39,114 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 17:54:39,114 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-10-11 17:54:39,116 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1174025211] [2024-10-11 17:54:39,116 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 17:54:39,120 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 17:54:39,120 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 17:54:39,143 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 17:54:39,144 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 17:54:39,145 INFO L87 Difference]: Start difference. First operand has 17 states, 8 states have (on average 2.125) internal successors, (17), 16 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 17:54:39,189 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 17:54:39,189 INFO L93 Difference]: Finished difference Result 14 states and 13 transitions. [2024-10-11 17:54:39,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 17:54:39,192 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 2 [2024-10-11 17:54:39,193 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 17:54:39,197 INFO L225 Difference]: With dead ends: 14 [2024-10-11 17:54:39,197 INFO L226 Difference]: Without dead ends: 13 [2024-10-11 17:54:39,199 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 17:54:39,202 INFO L432 NwaCegarLoop]: 3 mSDtfsCounter, 6 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 3 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 17:54:39,203 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 3 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 17:54:39,216 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2024-10-11 17:54:39,223 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2024-10-11 17:54:39,224 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) [2024-10-11 17:54:39,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 12 transitions. [2024-10-11 17:54:39,226 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 12 transitions. Word has length 2 [2024-10-11 17:54:39,226 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 17:54:39,227 INFO L471 AbstractCegarLoop]: Abstraction has 13 states and 12 transitions. [2024-10-11 17:54:39,227 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 17:54:39,227 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 12 transitions. [2024-10-11 17:54:39,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2024-10-11 17:54:39,227 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 17:54:39,228 INFO L215 NwaCegarLoop]: trace histogram [1, 1] [2024-10-11 17:54:39,228 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-11 17:54:39,228 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 5 more)] === [2024-10-11 17:54:39,229 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:54:39,229 INFO L85 PathProgramCache]: Analyzing trace with hash 1958, now seen corresponding path program 1 times [2024-10-11 17:54:39,229 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:54:39,229 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [962496649] [2024-10-11 17:54:39,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:54:39,230 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:54:39,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:54:39,356 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 17:54:39,356 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 17:54:39,356 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [962496649] [2024-10-11 17:54:39,356 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [962496649] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 17:54:39,357 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 17:54:39,357 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-10-11 17:54:39,357 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [200115022] [2024-10-11 17:54:39,357 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 17:54:39,358 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 17:54:39,359 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 17:54:39,359 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 17:54:39,359 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 17:54:39,359 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) [2024-10-11 17:54:39,378 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 17:54:39,378 INFO L93 Difference]: Finished difference Result 10 states and 9 transitions. [2024-10-11 17:54:39,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 17:54:39,379 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 2 [2024-10-11 17:54:39,379 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 17:54:39,379 INFO L225 Difference]: With dead ends: 10 [2024-10-11 17:54:39,380 INFO L226 Difference]: Without dead ends: 10 [2024-10-11 17:54:39,382 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 17:54:39,384 INFO L432 NwaCegarLoop]: 4 mSDtfsCounter, 2 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 7 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 17:54:39,384 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 7 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 17:54:39,385 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states. [2024-10-11 17:54:39,387 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 10. [2024-10-11 17:54:39,388 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) [2024-10-11 17:54:39,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 9 transitions. [2024-10-11 17:54:39,388 INFO L78 Accepts]: Start accepts. Automaton has 10 states and 9 transitions. Word has length 2 [2024-10-11 17:54:39,388 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 17:54:39,388 INFO L471 AbstractCegarLoop]: Abstraction has 10 states and 9 transitions. [2024-10-11 17:54:39,388 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 17:54:39,389 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 9 transitions. [2024-10-11 17:54:39,389 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-10-11 17:54:39,389 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 17:54:39,390 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2024-10-11 17:54:39,390 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-11 17:54:39,390 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 5 more)] === [2024-10-11 17:54:39,392 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:54:39,394 INFO L85 PathProgramCache]: Analyzing trace with hash 1806595544, now seen corresponding path program 1 times [2024-10-11 17:54:39,394 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:54:39,394 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1690378196] [2024-10-11 17:54:39,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:54:39,395 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:54:39,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:54:39,753 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 17:54:39,754 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 17:54:39,754 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1690378196] [2024-10-11 17:54:39,754 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1690378196] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 17:54:39,754 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 17:54:39,755 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-11 17:54:39,755 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1920498247] [2024-10-11 17:54:39,755 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 17:54:39,755 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-11 17:54:39,755 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 17:54:39,758 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-11 17:54:39,759 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-11 17:54:39,759 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) [2024-10-11 17:54:39,781 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 17:54:39,781 INFO L93 Difference]: Finished difference Result 8 states and 7 transitions. [2024-10-11 17:54:39,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-11 17:54:39,782 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 [2024-10-11 17:54:39,783 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 17:54:39,783 INFO L225 Difference]: With dead ends: 8 [2024-10-11 17:54:39,783 INFO L226 Difference]: Without dead ends: 8 [2024-10-11 17:54:39,784 INFO L431 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 [2024-10-11 17:54:39,785 INFO L432 NwaCegarLoop]: 4 mSDtfsCounter, 0 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 8 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 17:54:39,785 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 8 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 17:54:39,786 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states. [2024-10-11 17:54:39,787 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 8. [2024-10-11 17:54:39,789 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) [2024-10-11 17:54:39,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 7 transitions. [2024-10-11 17:54:39,790 INFO L78 Accepts]: Start accepts. Automaton has 8 states and 7 transitions. Word has length 6 [2024-10-11 17:54:39,790 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 17:54:39,791 INFO L471 AbstractCegarLoop]: Abstraction has 8 states and 7 transitions. [2024-10-11 17:54:39,791 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) [2024-10-11 17:54:39,792 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 7 transitions. [2024-10-11 17:54:39,792 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-10-11 17:54:39,792 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 17:54:39,792 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-10-11 17:54:39,792 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-11 17:54:39,793 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 5 more)] === [2024-10-11 17:54:39,796 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:54:39,796 INFO L85 PathProgramCache]: Analyzing trace with hash 169868041, now seen corresponding path program 1 times [2024-10-11 17:54:39,796 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:54:39,797 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [32283340] [2024-10-11 17:54:39,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:54:39,797 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:54:39,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:54:39,914 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 17:54:39,915 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 17:54:39,915 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [32283340] [2024-10-11 17:54:39,915 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [32283340] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 17:54:39,916 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 17:54:39,916 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-11 17:54:39,916 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [949798690] [2024-10-11 17:54:39,916 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 17:54:39,916 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-11 17:54:39,917 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 17:54:39,917 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-11 17:54:39,918 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-11 17:54:39,918 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) [2024-10-11 17:54:39,935 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 17:54:39,935 INFO L93 Difference]: Finished difference Result 7 states and 6 transitions. [2024-10-11 17:54:39,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-11 17:54:39,936 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 [2024-10-11 17:54:39,936 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 17:54:39,936 INFO L225 Difference]: With dead ends: 7 [2024-10-11 17:54:39,937 INFO L226 Difference]: Without dead ends: 0 [2024-10-11 17:54:39,937 INFO L431 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 [2024-10-11 17:54:39,939 INFO L432 NwaCegarLoop]: 1 mSDtfsCounter, 0 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 2 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 [2024-10-11 17:54:39,939 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 2 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 17:54:39,942 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-10-11 17:54:39,942 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-10-11 17:54:39,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 17:54:39,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-10-11 17:54:39,943 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 7 [2024-10-11 17:54:39,943 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 17:54:39,943 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-10-11 17:54:39,943 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) [2024-10-11 17:54:39,943 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-10-11 17:54:39,943 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-10-11 17:54:39,947 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (7 of 8 remaining) [2024-10-11 17:54:39,948 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 8 remaining) [2024-10-11 17:54:39,949 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 8 remaining) [2024-10-11 17:54:39,949 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 8 remaining) [2024-10-11 17:54:39,949 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 8 remaining) [2024-10-11 17:54:39,950 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (2 of 8 remaining) [2024-10-11 17:54:39,951 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK (1 of 8 remaining) [2024-10-11 17:54:39,951 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK (0 of 8 remaining) [2024-10-11 17:54:39,951 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-11 17:54:39,954 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-10-11 17:54:39,957 INFO L165 ceAbstractionStarter]: Computing trace abstraction results [2024-10-11 17:54:39,964 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.10 05:54:39 BoogieIcfgContainer [2024-10-11 17:54:39,964 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-10-11 17:54:39,965 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-11 17:54:39,965 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-11 17:54:39,965 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-11 17:54:39,965 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 05:54:38" (3/4) ... [2024-10-11 17:54:39,970 INFO L139 WitnessPrinter]: Generating witness for correct program [2024-10-11 17:54:39,978 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 16 nodes and edges [2024-10-11 17:54:39,978 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2024-10-11 17:54:39,979 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-10-11 17:54:39,979 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-10-11 17:54:40,078 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-10-11 17:54:40,079 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/witness.yml [2024-10-11 17:54:40,079 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-11 17:54:40,080 INFO L158 Benchmark]: Toolchain (without parser) took 1911.50ms. Allocated memory was 165.7MB in the beginning and 199.2MB in the end (delta: 33.6MB). Free memory was 133.4MB in the beginning and 167.1MB in the end (delta: -33.7MB). Peak memory consumption was 76.4MB. Max. memory is 16.1GB. [2024-10-11 17:54:40,081 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 165.7MB. Free memory is still 134.6MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-11 17:54:40,081 INFO L158 Benchmark]: CACSL2BoogieTranslator took 252.09ms. Allocated memory is still 165.7MB. Free memory was 133.4MB in the beginning and 122.1MB in the end (delta: 11.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2024-10-11 17:54:40,082 INFO L158 Benchmark]: Boogie Procedure Inliner took 26.54ms. Allocated memory is still 165.7MB. Free memory was 122.1MB in the beginning and 120.0MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-11 17:54:40,082 INFO L158 Benchmark]: Boogie Preprocessor took 33.80ms. Allocated memory is still 165.7MB. Free memory was 120.0MB in the beginning and 118.7MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-11 17:54:40,082 INFO L158 Benchmark]: RCFGBuilder took 323.49ms. Allocated memory is still 165.7MB. Free memory was 118.7MB in the beginning and 130.5MB in the end (delta: -11.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2024-10-11 17:54:40,082 INFO L158 Benchmark]: TraceAbstraction took 1154.79ms. Allocated memory is still 165.7MB. Free memory was 130.5MB in the beginning and 61.3MB in the end (delta: 69.2MB). Peak memory consumption was 69.2MB. Max. memory is 16.1GB. [2024-10-11 17:54:40,083 INFO L158 Benchmark]: Witness Printer took 114.70ms. Allocated memory was 165.7MB in the beginning and 199.2MB in the end (delta: 33.6MB). Free memory was 61.3MB in the beginning and 167.1MB in the end (delta: -105.8MB). Peak memory consumption was 7.4MB. Max. memory is 16.1GB. [2024-10-11 17:54:40,085 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 165.7MB. Free memory is still 134.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 252.09ms. Allocated memory is still 165.7MB. Free memory was 133.4MB in the beginning and 122.1MB in the end (delta: 11.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 26.54ms. Allocated memory is still 165.7MB. Free memory was 122.1MB in the beginning and 120.0MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 33.80ms. Allocated memory is still 165.7MB. Free memory was 120.0MB in the beginning and 118.7MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 323.49ms. Allocated memory is still 165.7MB. Free memory was 118.7MB in the beginning and 130.5MB in the end (delta: -11.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 1154.79ms. Allocated memory is still 165.7MB. Free memory was 130.5MB in the beginning and 61.3MB in the end (delta: 69.2MB). Peak memory consumption was 69.2MB. Max. memory is 16.1GB. * Witness Printer took 114.70ms. Allocated memory was 165.7MB in the beginning and 199.2MB in the end (delta: 33.6MB). Free memory was 61.3MB in the beginning and 167.1MB in the end (delta: -105.8MB). Peak memory consumption was 7.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 3]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 31]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 17 locations, 8 error locations. Started 1 CEGAR loops. OverallTime: 1.1s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 8 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 8 mSDsluCounter, 20 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 8 mSDsCounter, 4 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 45 IncrementalHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 4 mSolverCounterUnsat, 12 mSDtfsCounter, 45 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=17occurred 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, 0.1s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 17 NumberOfCodeBlocks, 17 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 13 ConstructedInterpolants, 0 QuantifiedInterpolants, 72 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 - AllSpecificationsHoldResult: All specifications hold 8 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-10-11 17:54:40,118 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/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