./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/valid-memsafety.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/list-ext3-properties/sll_circular_traversal-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version fca748b1 Calling Ultimate with: /root/.sdkman/candidates/java/current/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_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/list-ext3-properties/sll_circular_traversal-1.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 5b4659b27a54f579598b48dab11e67b47aff28d030592fa757cae575afffc3b5 --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dd.update-z3-fca748b-m [2024-11-20 15:00:15,832 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-20 15:00:15,912 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-11-20 15:00:15,917 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-20 15:00:15,919 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-20 15:00:15,949 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-20 15:00:15,949 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-20 15:00:15,950 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-20 15:00:15,950 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-20 15:00:15,951 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-20 15:00:15,951 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-20 15:00:15,952 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-20 15:00:15,953 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-20 15:00:15,957 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-20 15:00:15,957 INFO L153 SettingsManager]: * Use SBE=true [2024-11-20 15:00:15,957 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-20 15:00:15,958 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-20 15:00:15,958 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-20 15:00:15,958 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-20 15:00:15,958 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-20 15:00:15,959 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-20 15:00:15,959 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-20 15:00:15,959 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-20 15:00:15,960 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-20 15:00:15,960 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-20 15:00:15,960 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-20 15:00:15,960 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-20 15:00:15,961 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-20 15:00:15,961 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-20 15:00:15,961 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-20 15:00:15,961 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-20 15:00:15,962 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-20 15:00:15,962 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-20 15:00:15,962 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-20 15:00:15,962 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-20 15:00:15,962 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-20 15:00:15,963 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-20 15:00:15,963 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-20 15:00:15,964 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-20 15:00:15,965 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-20 15:00:15,965 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-20 15:00:15,965 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-20 15:00:15,965 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/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5b4659b27a54f579598b48dab11e67b47aff28d030592fa757cae575afffc3b5 [2024-11-20 15:00:16,229 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-20 15:00:16,253 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-20 15:00:16,257 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-20 15:00:16,258 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-20 15:00:16,258 INFO L274 PluginConnector]: CDTParser initialized [2024-11-20 15:00:16,260 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/list-ext3-properties/sll_circular_traversal-1.i [2024-11-20 15:00:17,720 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-20 15:00:17,958 INFO L384 CDTParser]: Found 1 translation units. [2024-11-20 15:00:17,959 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/list-ext3-properties/sll_circular_traversal-1.i [2024-11-20 15:00:17,969 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/26f039203/ae7999957c82434bb396fd3b53f19f33/FLAG86072b86a [2024-11-20 15:00:18,288 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/26f039203/ae7999957c82434bb396fd3b53f19f33 [2024-11-20 15:00:18,290 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-20 15:00:18,291 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-20 15:00:18,294 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-20 15:00:18,294 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-20 15:00:18,299 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-20 15:00:18,299 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 03:00:18" (1/1) ... [2024-11-20 15:00:18,300 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@60517f8d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 03:00:18, skipping insertion in model container [2024-11-20 15:00:18,300 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 03:00:18" (1/1) ... [2024-11-20 15:00:18,343 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-20 15:00:18,659 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-20 15:00:18,671 INFO L200 MainTranslator]: Completed pre-run [2024-11-20 15:00:18,723 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-20 15:00:18,756 INFO L204 MainTranslator]: Completed translation [2024-11-20 15:00:18,756 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 03:00:18 WrapperNode [2024-11-20 15:00:18,756 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-20 15:00:18,758 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-20 15:00:18,758 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-20 15:00:18,758 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-20 15:00:18,766 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 03:00:18" (1/1) ... [2024-11-20 15:00:18,784 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 03:00:18" (1/1) ... [2024-11-20 15:00:18,812 INFO L138 Inliner]: procedures = 122, calls = 24, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 96 [2024-11-20 15:00:18,815 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-20 15:00:18,816 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-20 15:00:18,816 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-20 15:00:18,816 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-20 15:00:18,827 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 03:00:18" (1/1) ... [2024-11-20 15:00:18,827 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 03:00:18" (1/1) ... [2024-11-20 15:00:18,830 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 03:00:18" (1/1) ... [2024-11-20 15:00:18,852 INFO L175 MemorySlicer]: Split 12 memory accesses to 2 slices as follows [2, 10]. 83 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0]. The 6 writes are split as follows [0, 6]. [2024-11-20 15:00:18,853 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 03:00:18" (1/1) ... [2024-11-20 15:00:18,854 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 03:00:18" (1/1) ... [2024-11-20 15:00:18,863 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 03:00:18" (1/1) ... [2024-11-20 15:00:18,868 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 03:00:18" (1/1) ... [2024-11-20 15:00:18,869 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 03:00:18" (1/1) ... [2024-11-20 15:00:18,874 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 03:00:18" (1/1) ... [2024-11-20 15:00:18,880 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-20 15:00:18,883 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-20 15:00:18,884 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-20 15:00:18,884 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-20 15:00:18,885 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 03:00:18" (1/1) ... [2024-11-20 15:00:18,890 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-20 15:00:18,902 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 15:00:18,932 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) [2024-11-20 15:00:18,934 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 [2024-11-20 15:00:18,984 INFO L130 BoogieDeclarations]: Found specification of procedure myexit [2024-11-20 15:00:18,985 INFO L138 BoogieDeclarations]: Found implementation of procedure myexit [2024-11-20 15:00:18,985 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-20 15:00:18,986 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-20 15:00:18,986 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-20 15:00:18,986 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-20 15:00:18,986 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-20 15:00:18,986 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-20 15:00:18,986 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-20 15:00:18,987 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-20 15:00:18,987 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-20 15:00:18,988 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-20 15:00:18,988 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-20 15:00:18,988 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-20 15:00:18,988 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-20 15:00:18,989 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-20 15:00:18,989 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-20 15:00:19,134 INFO L238 CfgBuilder]: Building ICFG [2024-11-20 15:00:19,136 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-20 15:00:19,156 INFO L735 $ProcedureCfgBuilder]: dead code at ProgramPoint myexitFINAL: assume true; [2024-11-20 15:00:19,376 INFO L? ?]: Removed 65 outVars from TransFormulas that were not future-live. [2024-11-20 15:00:19,376 INFO L287 CfgBuilder]: Performing block encoding [2024-11-20 15:00:19,395 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-20 15:00:19,396 INFO L316 CfgBuilder]: Removed 3 assume(true) statements. [2024-11-20 15:00:19,397 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 03:00:19 BoogieIcfgContainer [2024-11-20 15:00:19,397 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-20 15:00:19,399 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-20 15:00:19,400 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-20 15:00:19,403 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-20 15:00:19,404 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 03:00:18" (1/3) ... [2024-11-20 15:00:19,404 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@23e3c4b2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 03:00:19, skipping insertion in model container [2024-11-20 15:00:19,405 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 03:00:18" (2/3) ... [2024-11-20 15:00:19,405 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@23e3c4b2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 03:00:19, skipping insertion in model container [2024-11-20 15:00:19,406 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 03:00:19" (3/3) ... [2024-11-20 15:00:19,407 INFO L112 eAbstractionObserver]: Analyzing ICFG sll_circular_traversal-1.i [2024-11-20 15:00:19,422 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-20 15:00:19,422 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 28 error locations. [2024-11-20 15:00:19,471 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-20 15:00:19,476 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;@52c19851, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-20 15:00:19,476 INFO L334 AbstractCegarLoop]: Starting to check reachability of 28 error locations. [2024-11-20 15:00:19,479 INFO L276 IsEmpty]: Start isEmpty. Operand has 73 states, 42 states have (on average 1.9523809523809523) internal successors, (82), 71 states have internal predecessors, (82), 2 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 15:00:19,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2024-11-20 15:00:19,485 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 15:00:19,486 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2024-11-20 15:00:19,487 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 25 more)] === [2024-11-20 15:00:19,493 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 15:00:19,493 INFO L85 PathProgramCache]: Analyzing trace with hash 1079622, now seen corresponding path program 1 times [2024-11-20 15:00:19,502 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 15:00:19,502 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1691559767] [2024-11-20 15:00:19,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 15:00:19,503 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 15:00:19,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 15:00:19,807 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 15:00:19,808 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 15:00:19,808 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1691559767] [2024-11-20 15:00:19,809 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1691559767] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 15:00:19,809 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 15:00:19,809 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-20 15:00:19,814 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1901410379] [2024-11-20 15:00:19,820 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 15:00:19,830 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 15:00:19,832 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 15:00:19,886 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 15:00:19,922 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 15:00:19,924 INFO L87 Difference]: Start difference. First operand has 73 states, 42 states have (on average 1.9523809523809523) internal successors, (82), 71 states have internal predecessors, (82), 2 states have call successors, (2), 1 states have call predecessors, (2), 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 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 15:00:20,042 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 15:00:20,043 INFO L93 Difference]: Finished difference Result 69 states and 75 transitions. [2024-11-20 15:00:20,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 15:00:20,046 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2024-11-20 15:00:20,046 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 15:00:20,052 INFO L225 Difference]: With dead ends: 69 [2024-11-20 15:00:20,053 INFO L226 Difference]: Without dead ends: 63 [2024-11-20 15:00:20,054 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 15:00:20,059 INFO L432 NwaCegarLoop]: 61 mSDtfsCounter, 14 mSDsluCounter, 34 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 95 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-20 15:00:20,060 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 95 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-20 15:00:20,075 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2024-11-20 15:00:20,084 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 63. [2024-11-20 15:00:20,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63 states, 38 states have (on average 1.763157894736842) internal successors, (67), 62 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 15:00:20,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 67 transitions. [2024-11-20 15:00:20,087 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 67 transitions. Word has length 4 [2024-11-20 15:00:20,087 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 15:00:20,088 INFO L471 AbstractCegarLoop]: Abstraction has 63 states and 67 transitions. [2024-11-20 15:00:20,088 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 15:00:20,088 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 67 transitions. [2024-11-20 15:00:20,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2024-11-20 15:00:20,088 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 15:00:20,088 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2024-11-20 15:00:20,089 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-20 15:00:20,089 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 25 more)] === [2024-11-20 15:00:20,089 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 15:00:20,089 INFO L85 PathProgramCache]: Analyzing trace with hash 1079623, now seen corresponding path program 1 times [2024-11-20 15:00:20,090 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 15:00:20,090 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1620035288] [2024-11-20 15:00:20,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 15:00:20,090 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 15:00:20,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 15:00:20,222 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 15:00:20,222 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 15:00:20,222 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1620035288] [2024-11-20 15:00:20,222 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1620035288] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 15:00:20,222 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 15:00:20,223 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-20 15:00:20,223 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1773475192] [2024-11-20 15:00:20,223 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 15:00:20,224 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 15:00:20,224 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 15:00:20,224 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 15:00:20,225 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 15:00:20,225 INFO L87 Difference]: Start difference. First operand 63 states and 67 transitions. Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 15:00:20,286 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 15:00:20,287 INFO L93 Difference]: Finished difference Result 60 states and 64 transitions. [2024-11-20 15:00:20,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 15:00:20,288 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2024-11-20 15:00:20,288 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 15:00:20,290 INFO L225 Difference]: With dead ends: 60 [2024-11-20 15:00:20,290 INFO L226 Difference]: Without dead ends: 60 [2024-11-20 15:00:20,291 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 15:00:20,292 INFO L432 NwaCegarLoop]: 54 mSDtfsCounter, 12 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 90 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-20 15:00:20,295 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 90 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-20 15:00:20,296 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2024-11-20 15:00:20,299 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 60. [2024-11-20 15:00:20,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60 states, 38 states have (on average 1.6842105263157894) internal successors, (64), 59 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 15:00:20,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 64 transitions. [2024-11-20 15:00:20,300 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 64 transitions. Word has length 4 [2024-11-20 15:00:20,301 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 15:00:20,301 INFO L471 AbstractCegarLoop]: Abstraction has 60 states and 64 transitions. [2024-11-20 15:00:20,301 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 15:00:20,301 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 64 transitions. [2024-11-20 15:00:20,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-11-20 15:00:20,302 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 15:00:20,302 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 15:00:20,302 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-20 15:00:20,302 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 25 more)] === [2024-11-20 15:00:20,303 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 15:00:20,303 INFO L85 PathProgramCache]: Analyzing trace with hash 2065248729, now seen corresponding path program 1 times [2024-11-20 15:00:20,303 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 15:00:20,303 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [629529088] [2024-11-20 15:00:20,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 15:00:20,304 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 15:00:20,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 15:00:20,411 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 15:00:20,412 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 15:00:20,412 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [629529088] [2024-11-20 15:00:20,412 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [629529088] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 15:00:20,412 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 15:00:20,412 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-20 15:00:20,412 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1525420245] [2024-11-20 15:00:20,412 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 15:00:20,413 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 15:00:20,413 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 15:00:20,413 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 15:00:20,413 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 15:00:20,414 INFO L87 Difference]: Start difference. First operand 60 states and 64 transitions. Second operand has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 15:00:20,466 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 15:00:20,466 INFO L93 Difference]: Finished difference Result 58 states and 62 transitions. [2024-11-20 15:00:20,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 15:00:20,467 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2024-11-20 15:00:20,467 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 15:00:20,468 INFO L225 Difference]: With dead ends: 58 [2024-11-20 15:00:20,468 INFO L226 Difference]: Without dead ends: 58 [2024-11-20 15:00:20,468 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 15:00:20,470 INFO L432 NwaCegarLoop]: 56 mSDtfsCounter, 2 mSDsluCounter, 34 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 90 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-20 15:00:20,470 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 90 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-20 15:00:20,471 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2024-11-20 15:00:20,473 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 58. [2024-11-20 15:00:20,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58 states, 38 states have (on average 1.631578947368421) internal successors, (62), 57 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 15:00:20,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 62 transitions. [2024-11-20 15:00:20,475 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 62 transitions. Word has length 9 [2024-11-20 15:00:20,475 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 15:00:20,475 INFO L471 AbstractCegarLoop]: Abstraction has 58 states and 62 transitions. [2024-11-20 15:00:20,476 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 15:00:20,476 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 62 transitions. [2024-11-20 15:00:20,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-11-20 15:00:20,476 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 15:00:20,476 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 15:00:20,477 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-20 15:00:20,477 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 25 more)] === [2024-11-20 15:00:20,477 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 15:00:20,478 INFO L85 PathProgramCache]: Analyzing trace with hash 2065248730, now seen corresponding path program 1 times [2024-11-20 15:00:20,478 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 15:00:20,478 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2056782351] [2024-11-20 15:00:20,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 15:00:20,478 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 15:00:20,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 15:00:20,587 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 15:00:20,588 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 15:00:20,588 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2056782351] [2024-11-20 15:00:20,588 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2056782351] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 15:00:20,589 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 15:00:20,589 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-20 15:00:20,590 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1949620829] [2024-11-20 15:00:20,590 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 15:00:20,590 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 15:00:20,590 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 15:00:20,591 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 15:00:20,591 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 15:00:20,591 INFO L87 Difference]: Start difference. First operand 58 states and 62 transitions. Second operand has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 15:00:20,631 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 15:00:20,631 INFO L93 Difference]: Finished difference Result 56 states and 60 transitions. [2024-11-20 15:00:20,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 15:00:20,632 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2024-11-20 15:00:20,632 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 15:00:20,632 INFO L225 Difference]: With dead ends: 56 [2024-11-20 15:00:20,632 INFO L226 Difference]: Without dead ends: 56 [2024-11-20 15:00:20,633 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 15:00:20,634 INFO L432 NwaCegarLoop]: 56 mSDtfsCounter, 2 mSDsluCounter, 39 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 95 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-20 15:00:20,634 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 95 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-20 15:00:20,635 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2024-11-20 15:00:20,638 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 56. [2024-11-20 15:00:20,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56 states, 38 states have (on average 1.5789473684210527) internal successors, (60), 55 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 15:00:20,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 60 transitions. [2024-11-20 15:00:20,639 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 60 transitions. Word has length 9 [2024-11-20 15:00:20,639 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 15:00:20,639 INFO L471 AbstractCegarLoop]: Abstraction has 56 states and 60 transitions. [2024-11-20 15:00:20,643 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 15:00:20,644 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 60 transitions. [2024-11-20 15:00:20,647 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-11-20 15:00:20,647 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 15:00:20,647 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 15:00:20,648 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-20 15:00:20,648 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr10REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 25 more)] === [2024-11-20 15:00:20,648 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 15:00:20,649 INFO L85 PathProgramCache]: Analyzing trace with hash 427661500, now seen corresponding path program 1 times [2024-11-20 15:00:20,649 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 15:00:20,649 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1646317247] [2024-11-20 15:00:20,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 15:00:20,649 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 15:00:20,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 15:00:20,717 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 15:00:20,718 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 15:00:20,718 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1646317247] [2024-11-20 15:00:20,718 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1646317247] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 15:00:20,718 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 15:00:20,718 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-20 15:00:20,719 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1431032202] [2024-11-20 15:00:20,719 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 15:00:20,719 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 15:00:20,720 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 15:00:20,720 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 15:00:20,720 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 15:00:20,721 INFO L87 Difference]: Start difference. First operand 56 states and 60 transitions. Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 15:00:20,733 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 15:00:20,734 INFO L93 Difference]: Finished difference Result 61 states and 65 transitions. [2024-11-20 15:00:20,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 15:00:20,734 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2024-11-20 15:00:20,734 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 15:00:20,735 INFO L225 Difference]: With dead ends: 61 [2024-11-20 15:00:20,735 INFO L226 Difference]: Without dead ends: 61 [2024-11-20 15:00:20,735 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 15:00:20,736 INFO L432 NwaCegarLoop]: 58 mSDtfsCounter, 4 mSDsluCounter, 51 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 109 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-20 15:00:20,737 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 109 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-20 15:00:20,737 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2024-11-20 15:00:20,743 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 57. [2024-11-20 15:00:20,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57 states, 39 states have (on average 1.564102564102564) internal successors, (61), 56 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 15:00:20,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 61 transitions. [2024-11-20 15:00:20,747 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 61 transitions. Word has length 11 [2024-11-20 15:00:20,747 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 15:00:20,747 INFO L471 AbstractCegarLoop]: Abstraction has 57 states and 61 transitions. [2024-11-20 15:00:20,747 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 15:00:20,747 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 61 transitions. [2024-11-20 15:00:20,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2024-11-20 15:00:20,749 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 15:00:20,749 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 15:00:20,749 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-20 15:00:20,750 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr10REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 25 more)] === [2024-11-20 15:00:20,750 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 15:00:20,750 INFO L85 PathProgramCache]: Analyzing trace with hash 200371689, now seen corresponding path program 1 times [2024-11-20 15:00:20,751 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 15:00:20,751 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1864816913] [2024-11-20 15:00:20,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 15:00:20,751 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 15:00:20,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 15:00:20,893 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 15:00:20,894 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 15:00:20,894 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1864816913] [2024-11-20 15:00:20,894 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1864816913] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-20 15:00:20,895 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [710568918] [2024-11-20 15:00:20,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 15:00:20,898 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 15:00:20,898 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 15:00:20,901 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-20 15:00:20,903 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-20 15:00:21,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 15:00:21,004 INFO L255 TraceCheckSpWp]: Trace formula consists of 163 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-20 15:00:21,012 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 15:00:21,080 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 15:00:21,084 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-20 15:00:21,132 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 15:00:21,133 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [710568918] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-20 15:00:21,133 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-20 15:00:21,133 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2024-11-20 15:00:21,134 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2017052043] [2024-11-20 15:00:21,134 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-20 15:00:21,134 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-20 15:00:21,134 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 15:00:21,136 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-20 15:00:21,137 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-11-20 15:00:21,141 INFO L87 Difference]: Start difference. First operand 57 states and 61 transitions. Second operand has 7 states, 7 states have (on average 5.285714285714286) internal successors, (37), 7 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 15:00:21,172 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 15:00:21,175 INFO L93 Difference]: Finished difference Result 72 states and 76 transitions. [2024-11-20 15:00:21,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-20 15:00:21,178 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.285714285714286) internal successors, (37), 7 states have internal predecessors, (37), 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 16 [2024-11-20 15:00:21,178 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 15:00:21,179 INFO L225 Difference]: With dead ends: 72 [2024-11-20 15:00:21,179 INFO L226 Difference]: Without dead ends: 72 [2024-11-20 15:00:21,180 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-11-20 15:00:21,180 INFO L432 NwaCegarLoop]: 58 mSDtfsCounter, 8 mSDsluCounter, 156 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 214 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-20 15:00:21,181 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 214 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-20 15:00:21,185 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2024-11-20 15:00:21,188 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 72. [2024-11-20 15:00:21,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 72 states, 54 states have (on average 1.4074074074074074) internal successors, (76), 71 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 15:00:21,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 76 transitions. [2024-11-20 15:00:21,189 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 76 transitions. Word has length 16 [2024-11-20 15:00:21,190 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 15:00:21,190 INFO L471 AbstractCegarLoop]: Abstraction has 72 states and 76 transitions. [2024-11-20 15:00:21,190 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.285714285714286) internal successors, (37), 7 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 15:00:21,191 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 76 transitions. [2024-11-20 15:00:21,191 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2024-11-20 15:00:21,191 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 15:00:21,192 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 15:00:21,201 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-20 15:00:21,396 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2024-11-20 15:00:21,397 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr10REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 25 more)] === [2024-11-20 15:00:21,398 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 15:00:21,398 INFO L85 PathProgramCache]: Analyzing trace with hash 527522044, now seen corresponding path program 2 times [2024-11-20 15:00:21,398 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 15:00:21,398 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [353066984] [2024-11-20 15:00:21,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 15:00:21,398 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 15:00:21,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 15:00:21,611 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-20 15:00:21,611 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 15:00:21,612 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [353066984] [2024-11-20 15:00:21,612 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [353066984] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 15:00:21,612 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 15:00:21,613 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-20 15:00:21,613 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [784305632] [2024-11-20 15:00:21,614 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 15:00:21,615 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-20 15:00:21,615 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 15:00:21,616 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-20 15:00:21,616 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-20 15:00:21,616 INFO L87 Difference]: Start difference. First operand 72 states and 76 transitions. Second operand has 6 states, 5 states have (on average 3.8) internal successors, (19), 6 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 15:00:21,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 15:00:21,762 INFO L93 Difference]: Finished difference Result 69 states and 74 transitions. [2024-11-20 15:00:21,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-20 15:00:21,763 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.8) internal successors, (19), 6 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2024-11-20 15:00:21,763 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 15:00:21,764 INFO L225 Difference]: With dead ends: 69 [2024-11-20 15:00:21,764 INFO L226 Difference]: Without dead ends: 69 [2024-11-20 15:00:21,765 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-20 15:00:21,765 INFO L432 NwaCegarLoop]: 36 mSDtfsCounter, 17 mSDsluCounter, 81 mSDsCounter, 0 mSdLazyCounter, 148 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 117 SdHoareTripleChecker+Invalid, 156 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 148 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-20 15:00:21,768 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 117 Invalid, 156 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 148 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-20 15:00:21,769 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2024-11-20 15:00:21,772 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 69. [2024-11-20 15:00:21,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69 states, 55 states have (on average 1.3454545454545455) internal successors, (74), 68 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 15:00:21,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 74 transitions. [2024-11-20 15:00:21,773 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 74 transitions. Word has length 31 [2024-11-20 15:00:21,773 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 15:00:21,777 INFO L471 AbstractCegarLoop]: Abstraction has 69 states and 74 transitions. [2024-11-20 15:00:21,777 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.8) internal successors, (19), 6 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 15:00:21,778 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 74 transitions. [2024-11-20 15:00:21,778 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2024-11-20 15:00:21,778 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 15:00:21,779 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 15:00:21,779 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-20 15:00:21,780 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr11REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 25 more)] === [2024-11-20 15:00:21,780 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 15:00:21,780 INFO L85 PathProgramCache]: Analyzing trace with hash 527522045, now seen corresponding path program 1 times [2024-11-20 15:00:21,781 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 15:00:21,781 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1673806612] [2024-11-20 15:00:21,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 15:00:21,781 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 15:00:21,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 15:00:22,092 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-20 15:00:22,093 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 15:00:22,093 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1673806612] [2024-11-20 15:00:22,093 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1673806612] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 15:00:22,093 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 15:00:22,093 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-20 15:00:22,094 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1332279450] [2024-11-20 15:00:22,094 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 15:00:22,094 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-20 15:00:22,095 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 15:00:22,095 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-20 15:00:22,095 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-20 15:00:22,096 INFO L87 Difference]: Start difference. First operand 69 states and 74 transitions. Second operand has 6 states, 5 states have (on average 4.2) internal successors, (21), 6 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 15:00:22,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 15:00:22,214 INFO L93 Difference]: Finished difference Result 76 states and 80 transitions. [2024-11-20 15:00:22,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-20 15:00:22,215 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 4.2) internal successors, (21), 6 states have internal predecessors, (21), 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 31 [2024-11-20 15:00:22,215 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 15:00:22,216 INFO L225 Difference]: With dead ends: 76 [2024-11-20 15:00:22,217 INFO L226 Difference]: Without dead ends: 76 [2024-11-20 15:00:22,217 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-20 15:00:22,218 INFO L432 NwaCegarLoop]: 46 mSDtfsCounter, 8 mSDsluCounter, 119 mSDsCounter, 0 mSdLazyCounter, 116 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 165 SdHoareTripleChecker+Invalid, 119 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 116 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-20 15:00:22,218 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 165 Invalid, 119 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 116 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-20 15:00:22,219 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2024-11-20 15:00:22,223 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 72. [2024-11-20 15:00:22,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 72 states, 58 states have (on average 1.3275862068965518) internal successors, (77), 71 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 15:00:22,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 77 transitions. [2024-11-20 15:00:22,225 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 77 transitions. Word has length 31 [2024-11-20 15:00:22,226 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 15:00:22,226 INFO L471 AbstractCegarLoop]: Abstraction has 72 states and 77 transitions. [2024-11-20 15:00:22,226 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 4.2) internal successors, (21), 6 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 15:00:22,226 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 77 transitions. [2024-11-20 15:00:22,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2024-11-20 15:00:22,227 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 15:00:22,227 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 15:00:22,227 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-20 15:00:22,227 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 25 more)] === [2024-11-20 15:00:22,227 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 15:00:22,227 INFO L85 PathProgramCache]: Analyzing trace with hash -453739556, now seen corresponding path program 1 times [2024-11-20 15:00:22,228 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 15:00:22,228 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [433281138] [2024-11-20 15:00:22,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 15:00:22,228 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 15:00:22,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 15:00:22,986 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 9 proven. 7 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-20 15:00:22,987 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 15:00:22,987 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [433281138] [2024-11-20 15:00:22,987 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [433281138] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-20 15:00:22,987 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1740359677] [2024-11-20 15:00:22,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 15:00:22,988 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 15:00:22,988 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 15:00:22,990 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-20 15:00:22,992 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-20 15:00:23,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 15:00:23,137 INFO L255 TraceCheckSpWp]: Trace formula consists of 328 conjuncts, 33 conjuncts are in the unsatisfiable core [2024-11-20 15:00:23,142 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 15:00:23,374 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2024-11-20 15:00:23,457 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-20 15:00:23,458 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2024-11-20 15:00:23,570 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 9 proven. 7 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-20 15:00:23,571 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-20 15:00:23,930 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-20 15:00:23,930 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1740359677] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-20 15:00:23,931 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-20 15:00:23,931 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 25 [2024-11-20 15:00:23,931 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1228001015] [2024-11-20 15:00:23,931 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-20 15:00:23,932 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2024-11-20 15:00:23,932 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 15:00:23,932 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2024-11-20 15:00:23,933 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=529, Unknown=0, NotChecked=0, Total=600 [2024-11-20 15:00:23,933 INFO L87 Difference]: Start difference. First operand 72 states and 77 transitions. Second operand has 25 states, 25 states have (on average 2.64) internal successors, (66), 25 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 15:00:24,278 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 15:00:24,279 INFO L93 Difference]: Finished difference Result 72 states and 76 transitions. [2024-11-20 15:00:24,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-20 15:00:24,280 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 2.64) internal successors, (66), 25 states have internal predecessors, (66), 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 35 [2024-11-20 15:00:24,280 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 15:00:24,280 INFO L225 Difference]: With dead ends: 72 [2024-11-20 15:00:24,280 INFO L226 Difference]: Without dead ends: 72 [2024-11-20 15:00:24,281 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 141 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=152, Invalid=970, Unknown=0, NotChecked=0, Total=1122 [2024-11-20 15:00:24,281 INFO L432 NwaCegarLoop]: 43 mSDtfsCounter, 23 mSDsluCounter, 446 mSDsCounter, 0 mSdLazyCounter, 219 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 489 SdHoareTripleChecker+Invalid, 219 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 219 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-20 15:00:24,282 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 489 Invalid, 219 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 219 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-20 15:00:24,282 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2024-11-20 15:00:24,288 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 72. [2024-11-20 15:00:24,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 72 states, 58 states have (on average 1.3103448275862069) internal successors, (76), 71 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 15:00:24,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 76 transitions. [2024-11-20 15:00:24,292 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 76 transitions. Word has length 35 [2024-11-20 15:00:24,292 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 15:00:24,292 INFO L471 AbstractCegarLoop]: Abstraction has 72 states and 76 transitions. [2024-11-20 15:00:24,292 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 2.64) internal successors, (66), 25 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 15:00:24,292 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 76 transitions. [2024-11-20 15:00:24,293 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2024-11-20 15:00:24,293 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 15:00:24,293 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 15:00:24,304 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-20 15:00:24,494 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2024-11-20 15:00:24,494 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr10REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 25 more)] === [2024-11-20 15:00:24,495 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 15:00:24,495 INFO L85 PathProgramCache]: Analyzing trace with hash 2041941388, now seen corresponding path program 1 times [2024-11-20 15:00:24,495 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 15:00:24,495 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1015080839] [2024-11-20 15:00:24,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 15:00:24,495 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 15:00:24,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 15:00:25,293 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 22 proven. 6 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-11-20 15:00:25,295 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 15:00:25,296 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1015080839] [2024-11-20 15:00:25,296 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1015080839] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-20 15:00:25,296 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [502548678] [2024-11-20 15:00:25,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 15:00:25,296 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 15:00:25,297 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 15:00:25,299 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-20 15:00:25,300 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-20 15:00:25,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 15:00:25,437 INFO L255 TraceCheckSpWp]: Trace formula consists of 358 conjuncts, 43 conjuncts are in the unsatisfiable core [2024-11-20 15:00:25,440 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 15:00:25,485 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-11-20 15:00:25,527 INFO L349 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size [2024-11-20 15:00:25,527 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 14 treesize of output 13 [2024-11-20 15:00:25,556 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-11-20 15:00:25,566 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 17 [2024-11-20 15:00:25,625 INFO L349 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2024-11-20 15:00:25,626 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 29 treesize of output 28 [2024-11-20 15:00:25,807 INFO L349 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2024-11-20 15:00:25,808 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 41 treesize of output 28 [2024-11-20 15:00:25,830 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-20 15:00:25,830 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 25 [2024-11-20 15:00:25,842 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 22 proven. 6 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-11-20 15:00:25,843 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-20 15:00:26,095 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 22 proven. 6 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-11-20 15:00:26,095 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [502548678] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-20 15:00:26,096 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-20 15:00:26,096 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13, 11] total 25 [2024-11-20 15:00:26,096 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2068802106] [2024-11-20 15:00:26,096 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-20 15:00:26,096 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2024-11-20 15:00:26,096 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 15:00:26,097 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2024-11-20 15:00:26,097 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=570, Unknown=0, NotChecked=0, Total=650 [2024-11-20 15:00:26,097 INFO L87 Difference]: Start difference. First operand 72 states and 76 transitions. Second operand has 26 states, 25 states have (on average 2.64) internal successors, (66), 26 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 15:00:26,623 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 15:00:26,624 INFO L93 Difference]: Finished difference Result 77 states and 84 transitions. [2024-11-20 15:00:26,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-20 15:00:26,624 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 25 states have (on average 2.64) internal successors, (66), 26 states have internal predecessors, (66), 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 37 [2024-11-20 15:00:26,624 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 15:00:26,625 INFO L225 Difference]: With dead ends: 77 [2024-11-20 15:00:26,625 INFO L226 Difference]: Without dead ends: 77 [2024-11-20 15:00:26,625 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 63 SyntacticMatches, 1 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 234 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=135, Invalid=857, Unknown=0, NotChecked=0, Total=992 [2024-11-20 15:00:26,626 INFO L432 NwaCegarLoop]: 26 mSDtfsCounter, 25 mSDsluCounter, 246 mSDsCounter, 0 mSdLazyCounter, 643 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 272 SdHoareTripleChecker+Invalid, 651 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 643 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-20 15:00:26,626 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 272 Invalid, 651 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 643 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-20 15:00:26,627 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2024-11-20 15:00:26,629 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 77. [2024-11-20 15:00:26,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77 states, 63 states have (on average 1.3333333333333333) internal successors, (84), 76 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 15:00:26,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 84 transitions. [2024-11-20 15:00:26,630 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 84 transitions. Word has length 37 [2024-11-20 15:00:26,630 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 15:00:26,631 INFO L471 AbstractCegarLoop]: Abstraction has 77 states and 84 transitions. [2024-11-20 15:00:26,631 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 25 states have (on average 2.64) internal successors, (66), 26 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 15:00:26,631 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 84 transitions. [2024-11-20 15:00:26,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2024-11-20 15:00:26,632 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 15:00:26,632 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 15:00:26,641 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-20 15:00:26,835 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 15:00:26,836 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr11REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 25 more)] === [2024-11-20 15:00:26,836 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 15:00:26,836 INFO L85 PathProgramCache]: Analyzing trace with hash 2041941389, now seen corresponding path program 1 times [2024-11-20 15:00:26,837 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 15:00:26,837 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1907684230] [2024-11-20 15:00:26,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 15:00:26,837 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 15:00:26,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 15:00:27,900 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 22 proven. 6 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-11-20 15:00:27,901 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 15:00:27,901 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1907684230] [2024-11-20 15:00:27,901 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1907684230] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-20 15:00:27,901 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1395921472] [2024-11-20 15:00:27,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 15:00:27,901 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 15:00:27,901 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 15:00:27,903 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-20 15:00:27,904 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-20 15:00:28,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 15:00:28,045 INFO L255 TraceCheckSpWp]: Trace formula consists of 358 conjuncts, 57 conjuncts are in the unsatisfiable core [2024-11-20 15:00:28,049 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 15:00:28,085 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-20 15:00:28,177 INFO L349 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size [2024-11-20 15:00:28,177 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 14 treesize of output 13 [2024-11-20 15:00:28,244 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-11-20 15:00:28,249 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-11-20 15:00:28,297 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 17 [2024-11-20 15:00:28,312 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2024-11-20 15:00:28,403 INFO L349 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2024-11-20 15:00:28,404 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 29 treesize of output 28 [2024-11-20 15:00:28,414 INFO L349 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2024-11-20 15:00:28,415 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 18 [2024-11-20 15:00:28,680 INFO L349 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2024-11-20 15:00:28,680 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 48 treesize of output 35 [2024-11-20 15:00:28,690 INFO L349 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2024-11-20 15:00:28,690 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 55 treesize of output 46 [2024-11-20 15:00:28,729 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-20 15:00:28,730 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 40 treesize of output 32 [2024-11-20 15:00:28,738 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-20 15:00:28,739 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 28 [2024-11-20 15:00:28,846 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 22 proven. 6 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-11-20 15:00:28,846 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-20 15:00:29,549 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 22 proven. 6 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-11-20 15:00:29,549 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1395921472] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-20 15:00:29,549 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-20 15:00:29,549 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13, 11] total 34 [2024-11-20 15:00:29,549 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [459267599] [2024-11-20 15:00:29,549 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-20 15:00:29,550 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 35 states [2024-11-20 15:00:29,550 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 15:00:29,552 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2024-11-20 15:00:29,552 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=108, Invalid=1082, Unknown=0, NotChecked=0, Total=1190 [2024-11-20 15:00:29,553 INFO L87 Difference]: Start difference. First operand 77 states and 84 transitions. Second operand has 35 states, 34 states have (on average 2.4705882352941178) internal successors, (84), 35 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 15:00:30,598 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 15:00:30,598 INFO L93 Difference]: Finished difference Result 101 states and 112 transitions. [2024-11-20 15:00:30,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-11-20 15:00:30,599 INFO L78 Accepts]: Start accepts. Automaton has has 35 states, 34 states have (on average 2.4705882352941178) internal successors, (84), 35 states have internal predecessors, (84), 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 37 [2024-11-20 15:00:30,599 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 15:00:30,601 INFO L225 Difference]: With dead ends: 101 [2024-11-20 15:00:30,601 INFO L226 Difference]: Without dead ends: 101 [2024-11-20 15:00:30,602 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 54 SyntacticMatches, 1 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 517 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=235, Invalid=2117, Unknown=0, NotChecked=0, Total=2352 [2024-11-20 15:00:30,603 INFO L432 NwaCegarLoop]: 28 mSDtfsCounter, 105 mSDsluCounter, 518 mSDsCounter, 0 mSdLazyCounter, 978 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 105 SdHoareTripleChecker+Valid, 546 SdHoareTripleChecker+Invalid, 1000 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 978 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-20 15:00:30,603 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [105 Valid, 546 Invalid, 1000 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 978 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-20 15:00:30,604 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2024-11-20 15:00:30,606 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 87. [2024-11-20 15:00:30,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87 states, 74 states have (on average 1.3513513513513513) internal successors, (100), 86 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 15:00:30,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 100 transitions. [2024-11-20 15:00:30,607 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 100 transitions. Word has length 37 [2024-11-20 15:00:30,607 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 15:00:30,608 INFO L471 AbstractCegarLoop]: Abstraction has 87 states and 100 transitions. [2024-11-20 15:00:30,608 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 35 states, 34 states have (on average 2.4705882352941178) internal successors, (84), 35 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 15:00:30,608 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 100 transitions. [2024-11-20 15:00:30,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2024-11-20 15:00:30,609 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 15:00:30,609 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 15:00:30,617 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-20 15:00:30,809 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 15:00:30,810 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr17REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 25 more)] === [2024-11-20 15:00:30,810 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 15:00:30,810 INFO L85 PathProgramCache]: Analyzing trace with hash -1124327534, now seen corresponding path program 1 times [2024-11-20 15:00:30,810 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 15:00:30,810 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [80572801] [2024-11-20 15:00:30,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 15:00:30,811 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 15:00:30,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 15:00:31,116 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-20 15:00:31,116 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 15:00:31,116 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [80572801] [2024-11-20 15:00:31,116 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [80572801] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 15:00:31,116 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 15:00:31,116 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-20 15:00:31,116 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1495965478] [2024-11-20 15:00:31,116 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 15:00:31,117 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-20 15:00:31,117 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 15:00:31,117 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-20 15:00:31,117 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-11-20 15:00:31,117 INFO L87 Difference]: Start difference. First operand 87 states and 100 transitions. Second operand has 8 states, 7 states have (on average 4.0) internal successors, (28), 8 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 15:00:31,260 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 15:00:31,261 INFO L93 Difference]: Finished difference Result 90 states and 99 transitions. [2024-11-20 15:00:31,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-20 15:00:31,261 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 4.0) internal successors, (28), 8 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 38 [2024-11-20 15:00:31,261 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 15:00:31,262 INFO L225 Difference]: With dead ends: 90 [2024-11-20 15:00:31,262 INFO L226 Difference]: Without dead ends: 90 [2024-11-20 15:00:31,262 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2024-11-20 15:00:31,263 INFO L432 NwaCegarLoop]: 32 mSDtfsCounter, 51 mSDsluCounter, 95 mSDsCounter, 0 mSdLazyCounter, 177 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 127 SdHoareTripleChecker+Invalid, 181 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 177 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-20 15:00:31,263 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [51 Valid, 127 Invalid, 181 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 177 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-20 15:00:31,263 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2024-11-20 15:00:31,269 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 84. [2024-11-20 15:00:31,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 84 states, 72 states have (on average 1.2916666666666667) internal successors, (93), 83 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 15:00:31,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 93 transitions. [2024-11-20 15:00:31,273 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 93 transitions. Word has length 38 [2024-11-20 15:00:31,273 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 15:00:31,273 INFO L471 AbstractCegarLoop]: Abstraction has 84 states and 93 transitions. [2024-11-20 15:00:31,273 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 4.0) internal successors, (28), 8 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 15:00:31,273 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 93 transitions. [2024-11-20 15:00:31,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2024-11-20 15:00:31,274 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 15:00:31,274 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 15:00:31,274 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-20 15:00:31,274 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 25 more)] === [2024-11-20 15:00:31,275 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 15:00:31,275 INFO L85 PathProgramCache]: Analyzing trace with hash 1642850412, now seen corresponding path program 1 times [2024-11-20 15:00:31,275 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 15:00:31,275 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1433474700] [2024-11-20 15:00:31,275 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 15:00:31,275 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 15:00:31,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 15:00:32,846 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 6 proven. 23 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-11-20 15:00:32,846 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 15:00:32,846 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1433474700] [2024-11-20 15:00:32,847 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1433474700] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-20 15:00:32,847 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1585475484] [2024-11-20 15:00:32,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 15:00:32,847 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 15:00:32,847 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 15:00:32,850 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-20 15:00:32,867 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-20 15:00:33,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 15:00:33,007 INFO L255 TraceCheckSpWp]: Trace formula consists of 367 conjuncts, 71 conjuncts are in the unsatisfiable core [2024-11-20 15:00:33,016 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 15:00:33,110 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-11-20 15:00:33,172 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-11-20 15:00:33,174 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-11-20 15:00:33,196 INFO L349 Elim1Store]: treesize reduction 21, result has 44.7 percent of original size [2024-11-20 15:00:33,196 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 20 treesize of output 23 [2024-11-20 15:00:33,245 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 19 [2024-11-20 15:00:33,260 INFO L349 Elim1Store]: treesize reduction 21, result has 44.7 percent of original size [2024-11-20 15:00:33,260 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 31 [2024-11-20 15:00:33,269 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2024-11-20 15:00:33,340 INFO L349 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2024-11-20 15:00:33,340 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 31 treesize of output 30 [2024-11-20 15:00:33,344 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 15 [2024-11-20 15:00:33,356 INFO L349 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2024-11-20 15:00:33,356 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 18 [2024-11-20 15:00:33,620 INFO L349 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2024-11-20 15:00:33,620 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 50 treesize of output 37 [2024-11-20 15:00:33,637 INFO L349 Elim1Store]: treesize reduction 21, result has 44.7 percent of original size [2024-11-20 15:00:33,637 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 43 treesize of output 46 [2024-11-20 15:00:33,647 INFO L349 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2024-11-20 15:00:33,648 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 51 treesize of output 42 [2024-11-20 15:00:33,716 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-20 15:00:33,716 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 42 treesize of output 34 [2024-11-20 15:00:33,723 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-20 15:00:33,723 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 30 [2024-11-20 15:00:33,850 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 6 proven. 23 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-11-20 15:00:33,850 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-20 15:00:34,854 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-20 15:00:34,855 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 76 treesize of output 80 [2024-11-20 15:00:34,933 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-20 15:00:34,934 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 76 treesize of output 80 [2024-11-20 15:00:35,609 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse2 (= |c_ULTIMATE.start_sll_circular_create_~new_head~0#1.offset| 0)) (.cse0 (+ 4 |c_ULTIMATE.start_sll_circular_create_~new_head~0#1.offset|)) (.cse1 (= |c_ULTIMATE.start_sll_circular_create_~last~0#1.offset| 0))) (and (or (forall ((|ULTIMATE.start_sll_circular_create_~last~0#1.base| Int) (v_ArrVal_1039 Int) (v_ArrVal_1032 (Array Int Int)) (v_ArrVal_1043 (Array Int Int)) (v_subst_1 Int)) (or (= |c_ULTIMATE.start_sll_circular_create_~new_head~0#1.base| v_subst_1) (= |c_ULTIMATE.start_main_~data_init~0#1| (select (select (store (store |c_#memory_int#1| |ULTIMATE.start_sll_circular_create_~last~0#1.base| (store (select (store |c_#memory_int#1| v_subst_1 v_ArrVal_1032) |ULTIMATE.start_sll_circular_create_~last~0#1.base|) |c_ULTIMATE.start_sll_circular_create_~last~0#1.offset| v_ArrVal_1039)) v_subst_1 v_ArrVal_1043) |c_ULTIMATE.start_sll_circular_create_~new_head~0#1.base|) .cse0)))) .cse1) (or (and (forall ((|ULTIMATE.start_sll_circular_create_~last~0#1.base| Int) (v_ArrVal_1039 Int) (v_ArrVal_1043 (Array Int Int)) (v_subst_3 Int)) (or (= (select (select (store (store |c_#memory_int#1| |ULTIMATE.start_sll_circular_create_~last~0#1.base| (store (select |c_#memory_int#1| |ULTIMATE.start_sll_circular_create_~last~0#1.base|) |c_ULTIMATE.start_sll_circular_create_~last~0#1.offset| v_ArrVal_1039)) v_subst_3 v_ArrVal_1043) |c_ULTIMATE.start_sll_circular_create_~new_head~0#1.base|) .cse0) |c_ULTIMATE.start_main_~data_init~0#1|) (= |ULTIMATE.start_sll_circular_create_~last~0#1.base| v_subst_3))) (or .cse1 (forall ((|ULTIMATE.start_sll_circular_create_~last~0#1.base| Int) (v_ArrVal_1039 Int) (v_subst_4 Int) (v_ArrVal_1032 (Array Int Int)) (v_ArrVal_1043 (Array Int Int))) (= |c_ULTIMATE.start_main_~data_init~0#1| (select (select (store (store |c_#memory_int#1| |ULTIMATE.start_sll_circular_create_~last~0#1.base| (store (select (store |c_#memory_int#1| v_subst_4 v_ArrVal_1032) |ULTIMATE.start_sll_circular_create_~last~0#1.base|) |c_ULTIMATE.start_sll_circular_create_~last~0#1.offset| v_ArrVal_1039)) v_subst_4 v_ArrVal_1043) |c_ULTIMATE.start_sll_circular_create_~new_head~0#1.base|) .cse0))))) .cse2) (or (forall ((|ULTIMATE.start_sll_circular_create_~last~0#1.base| Int) (v_ArrVal_1043 (Array Int Int))) (= (select (select (store |c_#memory_int#1| |ULTIMATE.start_sll_circular_create_~last~0#1.base| v_ArrVal_1043) |c_ULTIMATE.start_sll_circular_create_~new_head~0#1.base|) .cse0) |c_ULTIMATE.start_main_~data_init~0#1|)) .cse1 .cse2) (forall ((v_subst_2 Int)) (or (forall ((|ULTIMATE.start_sll_circular_create_~last~0#1.base| Int) (v_ArrVal_1039 Int) (v_ArrVal_1043 (Array Int Int))) (or (= (select (select (store (store |c_#memory_int#1| |ULTIMATE.start_sll_circular_create_~last~0#1.base| (store (select |c_#memory_int#1| |ULTIMATE.start_sll_circular_create_~last~0#1.base|) |c_ULTIMATE.start_sll_circular_create_~last~0#1.offset| v_ArrVal_1039)) v_subst_2 v_ArrVal_1043) |c_ULTIMATE.start_sll_circular_create_~new_head~0#1.base|) .cse0) |c_ULTIMATE.start_main_~data_init~0#1|) (= |ULTIMATE.start_sll_circular_create_~last~0#1.base| v_subst_2))) (= |c_ULTIMATE.start_sll_circular_create_~new_head~0#1.base| v_subst_2))) (or (forall ((|ULTIMATE.start_sll_circular_create_~last~0#1.base| Int) (v_ArrVal_1043 (Array Int Int))) (or (= (select (select (store |c_#memory_int#1| |ULTIMATE.start_sll_circular_create_~last~0#1.base| v_ArrVal_1043) |c_ULTIMATE.start_sll_circular_create_~new_head~0#1.base|) .cse0) |c_ULTIMATE.start_main_~data_init~0#1|) (= |c_ULTIMATE.start_sll_circular_create_~new_head~0#1.base| |ULTIMATE.start_sll_circular_create_~last~0#1.base|))) .cse1))) is different from false [2024-11-20 15:00:35,637 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-20 15:00:35,637 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 43 treesize of output 34 [2024-11-20 15:00:35,640 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-20 15:00:35,648 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-20 15:00:35,649 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 61 treesize of output 63 [2024-11-20 15:00:35,656 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 44 [2024-11-20 15:00:35,685 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 29 [2024-11-20 15:00:35,716 INFO L349 Elim1Store]: treesize reduction 19, result has 62.0 percent of original size [2024-11-20 15:00:35,717 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 40 treesize of output 43 [2024-11-20 15:00:35,722 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 36 [2024-11-20 15:00:35,726 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-11-20 15:00:35,745 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-20 15:00:35,750 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-20 15:00:35,751 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 34 treesize of output 27 [2024-11-20 15:00:35,755 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-20 15:00:35,757 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 8 [2024-11-20 15:00:35,766 INFO L349 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2024-11-20 15:00:35,767 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 1 [2024-11-20 15:00:35,902 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 6 proven. 20 refuted. 0 times theorem prover too weak. 7 trivial. 3 not checked. [2024-11-20 15:00:35,902 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1585475484] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-20 15:00:35,902 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-20 15:00:35,902 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 16, 18] total 44 [2024-11-20 15:00:35,903 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [190072966] [2024-11-20 15:00:35,903 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-20 15:00:35,903 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 44 states [2024-11-20 15:00:35,903 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 15:00:35,904 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 44 interpolants. [2024-11-20 15:00:35,904 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=139, Invalid=1606, Unknown=65, NotChecked=82, Total=1892 [2024-11-20 15:00:35,905 INFO L87 Difference]: Start difference. First operand 84 states and 93 transitions. Second operand has 44 states, 44 states have (on average 1.9090909090909092) internal successors, (84), 44 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 15:00:37,191 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 15:00:37,191 INFO L93 Difference]: Finished difference Result 97 states and 105 transitions. [2024-11-20 15:00:37,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2024-11-20 15:00:37,191 INFO L78 Accepts]: Start accepts. Automaton has has 44 states, 44 states have (on average 1.9090909090909092) internal successors, (84), 44 states have internal predecessors, (84), 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 41 [2024-11-20 15:00:37,191 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 15:00:37,192 INFO L225 Difference]: With dead ends: 97 [2024-11-20 15:00:37,192 INFO L226 Difference]: Without dead ends: 97 [2024-11-20 15:00:37,193 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 114 GetRequests, 57 SyntacticMatches, 1 SemanticMatches, 56 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 673 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=289, Invalid=2840, Unknown=67, NotChecked=110, Total=3306 [2024-11-20 15:00:37,193 INFO L432 NwaCegarLoop]: 32 mSDtfsCounter, 49 mSDsluCounter, 662 mSDsCounter, 0 mSdLazyCounter, 977 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 694 SdHoareTripleChecker+Invalid, 1043 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 977 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 60 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-20 15:00:37,194 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [49 Valid, 694 Invalid, 1043 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 977 Invalid, 0 Unknown, 60 Unchecked, 0.7s Time] [2024-11-20 15:00:37,194 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states. [2024-11-20 15:00:37,196 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 84. [2024-11-20 15:00:37,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 84 states, 72 states have (on average 1.2777777777777777) internal successors, (92), 83 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 15:00:37,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 92 transitions. [2024-11-20 15:00:37,197 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 92 transitions. Word has length 41 [2024-11-20 15:00:37,197 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 15:00:37,197 INFO L471 AbstractCegarLoop]: Abstraction has 84 states and 92 transitions. [2024-11-20 15:00:37,197 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 44 states, 44 states have (on average 1.9090909090909092) internal successors, (84), 44 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 15:00:37,197 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 92 transitions. [2024-11-20 15:00:37,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2024-11-20 15:00:37,198 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 15:00:37,198 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 15:00:37,209 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-20 15:00:37,402 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2024-11-20 15:00:37,403 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 25 more)] === [2024-11-20 15:00:37,403 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 15:00:37,404 INFO L85 PathProgramCache]: Analyzing trace with hash -1678988715, now seen corresponding path program 1 times [2024-11-20 15:00:37,404 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 15:00:37,404 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2075821209] [2024-11-20 15:00:37,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 15:00:37,404 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 15:00:37,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 15:00:38,038 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 3 proven. 24 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-11-20 15:00:38,039 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 15:00:38,039 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2075821209] [2024-11-20 15:00:38,039 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2075821209] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-20 15:00:38,039 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [103109463] [2024-11-20 15:00:38,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 15:00:38,039 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 15:00:38,039 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 15:00:38,042 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-20 15:00:38,044 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-20 15:00:38,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 15:00:38,198 INFO L255 TraceCheckSpWp]: Trace formula consists of 372 conjuncts, 47 conjuncts are in the unsatisfiable core [2024-11-20 15:00:38,201 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 15:00:38,203 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-11-20 15:00:38,225 INFO L349 Elim1Store]: treesize reduction 20, result has 33.3 percent of original size [2024-11-20 15:00:38,226 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 19 treesize of output 16 [2024-11-20 15:00:38,246 INFO L349 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2024-11-20 15:00:38,247 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 12 treesize of output 14 [2024-11-20 15:00:38,270 INFO L349 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2024-11-20 15:00:38,271 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2024-11-20 15:00:38,348 INFO L349 Elim1Store]: treesize reduction 8, result has 52.9 percent of original size [2024-11-20 15:00:38,349 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 16 treesize of output 18 [2024-11-20 15:00:38,385 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-11-20 15:00:38,413 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 16 [2024-11-20 15:00:38,452 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 18 [2024-11-20 15:00:38,527 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 12 [2024-11-20 15:00:38,533 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 8 [2024-11-20 15:00:38,537 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 11 proven. 16 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-11-20 15:00:38,537 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-20 15:00:38,552 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1214 (Array Int Int))) (not (= |c_ULTIMATE.start_sll_circular_create_~head~0#1.base| (select (select (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_sll_circular_create_~last~0#1.base| v_ArrVal_1214) |c_ULTIMATE.start_sll_circular_create_~head~0#1.base|) |c_ULTIMATE.start_sll_circular_create_~head~0#1.offset|)))) is different from false [2024-11-20 15:00:38,597 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1214 (Array Int Int)) (v_ArrVal_1213 (Array Int Int))) (or (not (= (select (select (store (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_sll_circular_create_~new_head~0#1.base| v_ArrVal_1213) |c_ULTIMATE.start_sll_circular_create_~last~0#1.base| v_ArrVal_1214) |c_ULTIMATE.start_sll_circular_create_~new_head~0#1.base|) |c_ULTIMATE.start_sll_circular_create_~new_head~0#1.offset|) |c_ULTIMATE.start_sll_circular_create_~new_head~0#1.base|)) (not (= (let ((.cse0 (+ 4 |c_ULTIMATE.start_sll_circular_create_~new_head~0#1.offset|))) (store (select |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_sll_circular_create_~new_head~0#1.base|) .cse0 (select v_ArrVal_1213 .cse0))) v_ArrVal_1213)))) is different from false [2024-11-20 15:00:38,602 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 39 [2024-11-20 15:00:38,607 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2024-11-20 15:00:38,881 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 11 proven. 9 refuted. 0 times theorem prover too weak. 7 trivial. 7 not checked. [2024-11-20 15:00:38,882 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [103109463] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-20 15:00:38,882 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-20 15:00:38,882 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 13, 14] total 30 [2024-11-20 15:00:38,882 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [365282747] [2024-11-20 15:00:38,882 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-20 15:00:38,883 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2024-11-20 15:00:38,883 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 15:00:38,883 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2024-11-20 15:00:38,884 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=93, Invalid=663, Unknown=8, NotChecked=106, Total=870 [2024-11-20 15:00:38,884 INFO L87 Difference]: Start difference. First operand 84 states and 92 transitions. Second operand has 30 states, 30 states have (on average 2.7666666666666666) internal successors, (83), 30 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 15:00:39,413 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 15:00:39,414 INFO L93 Difference]: Finished difference Result 82 states and 89 transitions. [2024-11-20 15:00:39,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-20 15:00:39,414 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 2.7666666666666666) internal successors, (83), 30 states have internal predecessors, (83), 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 42 [2024-11-20 15:00:39,415 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 15:00:39,415 INFO L225 Difference]: With dead ends: 82 [2024-11-20 15:00:39,416 INFO L226 Difference]: Without dead ends: 82 [2024-11-20 15:00:39,416 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 73 SyntacticMatches, 4 SemanticMatches, 35 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 221 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=197, Invalid=993, Unknown=8, NotChecked=134, Total=1332 [2024-11-20 15:00:39,417 INFO L432 NwaCegarLoop]: 38 mSDtfsCounter, 13 mSDsluCounter, 478 mSDsCounter, 0 mSdLazyCounter, 508 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 516 SdHoareTripleChecker+Invalid, 575 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 508 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 64 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-20 15:00:39,417 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 516 Invalid, 575 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 508 Invalid, 0 Unknown, 64 Unchecked, 0.3s Time] [2024-11-20 15:00:39,417 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2024-11-20 15:00:39,420 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 82. [2024-11-20 15:00:39,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 82 states, 70 states have (on average 1.2714285714285714) internal successors, (89), 81 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 15:00:39,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 89 transitions. [2024-11-20 15:00:39,421 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 89 transitions. Word has length 42 [2024-11-20 15:00:39,421 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 15:00:39,422 INFO L471 AbstractCegarLoop]: Abstraction has 82 states and 89 transitions. [2024-11-20 15:00:39,422 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 2.7666666666666666) internal successors, (83), 30 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 15:00:39,422 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 89 transitions. [2024-11-20 15:00:39,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2024-11-20 15:00:39,423 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 15:00:39,423 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 15:00:39,433 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-11-20 15:00:39,623 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 15:00:39,624 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr10REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 25 more)] === [2024-11-20 15:00:39,624 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 15:00:39,624 INFO L85 PathProgramCache]: Analyzing trace with hash -1769728484, now seen corresponding path program 2 times [2024-11-20 15:00:39,624 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 15:00:39,624 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [913215287] [2024-11-20 15:00:39,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 15:00:39,624 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 15:00:39,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 15:00:41,249 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 22 proven. 19 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-20 15:00:41,249 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 15:00:41,249 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [913215287] [2024-11-20 15:00:41,250 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [913215287] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-20 15:00:41,250 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1860000100] [2024-11-20 15:00:41,250 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-20 15:00:41,250 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 15:00:41,250 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 15:00:41,253 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-20 15:00:41,254 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-20 15:00:41,406 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-20 15:00:41,406 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-20 15:00:41,409 INFO L255 TraceCheckSpWp]: Trace formula consists of 397 conjuncts, 92 conjuncts are in the unsatisfiable core [2024-11-20 15:00:41,413 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 15:00:41,426 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-11-20 15:00:41,457 INFO L349 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size [2024-11-20 15:00:41,457 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 14 treesize of output 13 [2024-11-20 15:00:41,497 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-11-20 15:00:41,505 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-11-20 15:00:41,551 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 17 [2024-11-20 15:00:41,556 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2024-11-20 15:00:41,605 INFO L349 Elim1Store]: treesize reduction 21, result has 44.7 percent of original size [2024-11-20 15:00:41,605 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 29 [2024-11-20 15:00:41,617 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-20 15:00:41,689 INFO L349 Elim1Store]: treesize reduction 25, result has 43.2 percent of original size [2024-11-20 15:00:41,689 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 56 treesize of output 36 [2024-11-20 15:00:41,712 INFO L349 Elim1Store]: treesize reduction 29, result has 27.5 percent of original size [2024-11-20 15:00:41,713 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 22 [2024-11-20 15:00:41,772 INFO L349 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2024-11-20 15:00:41,772 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 67 treesize of output 37 [2024-11-20 15:00:41,788 INFO L349 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2024-11-20 15:00:41,789 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 34 treesize of output 25 [2024-11-20 15:00:41,893 INFO L349 Elim1Store]: treesize reduction 24, result has 56.4 percent of original size [2024-11-20 15:00:41,894 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 63 treesize of output 60 [2024-11-20 15:00:41,913 INFO L349 Elim1Store]: treesize reduction 40, result has 27.3 percent of original size [2024-11-20 15:00:41,913 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 26 treesize of output 28 [2024-11-20 15:00:42,542 INFO L349 Elim1Store]: treesize reduction 80, result has 1.2 percent of original size [2024-11-20 15:00:42,542 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 6 new quantified variables, introduced 10 case distinctions, treesize of input 160 treesize of output 115 [2024-11-20 15:00:42,557 INFO L349 Elim1Store]: treesize reduction 96, result has 1.0 percent of original size [2024-11-20 15:00:42,557 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 167 treesize of output 151 [2024-11-20 15:00:43,100 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-11-20 15:00:43,323 INFO L349 Elim1Store]: treesize reduction 80, result has 1.2 percent of original size [2024-11-20 15:00:43,323 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 2 disjoint index pairs (out of 10 index pairs), introduced 6 new quantified variables, introduced 10 case distinctions, treesize of input 158 treesize of output 113 [2024-11-20 15:00:43,336 INFO L349 Elim1Store]: treesize reduction 72, result has 1.4 percent of original size [2024-11-20 15:00:43,336 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 2 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 9 case distinctions, treesize of input 122 treesize of output 114 [2024-11-20 15:00:43,551 INFO L349 Elim1Store]: treesize reduction 8, result has 90.1 percent of original size [2024-11-20 15:00:43,551 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 6 new quantified variables, introduced 10 case distinctions, treesize of input 175 treesize of output 166 [2024-11-20 15:00:43,614 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-20 15:00:43,614 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 9 case distinctions, treesize of input 86 treesize of output 126 [2024-11-20 15:00:44,780 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 18 proven. 23 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-20 15:00:44,780 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-20 15:00:59,187 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-20 15:00:59,187 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 705 treesize of output 762 [2024-11-20 15:01:00,393 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 16 [2024-11-20 15:01:00,486 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 16 [2024-11-20 15:01:00,746 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 16 [2024-11-20 15:01:00,865 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 16 [2024-11-20 15:01:00,936 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 16 [2024-11-20 15:01:01,258 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5 [2024-11-20 15:01:01,321 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5 [2024-11-20 15:01:01,380 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5 [2024-11-20 15:01:01,446 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5 [2024-11-20 15:01:01,513 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5 [2024-11-20 15:01:02,658 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5 [2024-11-20 15:01:02,721 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5 [2024-11-20 15:01:02,780 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5 [2024-11-20 15:01:02,834 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5 [2024-11-20 15:01:02,839 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5 [2024-11-20 15:01:02,975 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2024-11-20 15:01:03,041 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2024-11-20 15:01:03,124 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2024-11-20 15:01:03,343 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2024-11-20 15:01:03,360 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2024-11-20 15:01:03,492 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2024-11-20 15:01:03,550 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2024-11-20 15:01:03,708 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2024-11-20 15:01:03,718 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2024-11-20 15:01:03,780 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2024-11-20 15:01:03,917 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5 [2024-11-20 15:01:03,998 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 16 [2024-11-20 15:01:04,512 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5 [2024-11-20 15:01:04,641 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5 [2024-11-20 15:01:04,695 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5 [2024-11-20 15:01:04,759 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 16 [2024-11-20 15:01:04,807 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5 [2024-11-20 15:01:04,904 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5 [2024-11-20 15:01:04,915 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 16 [2024-11-20 15:01:04,972 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5 [2024-11-20 15:01:06,328 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5 [2024-11-20 15:01:06,401 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5 [2024-11-20 15:01:06,488 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2024-11-20 15:01:06,563 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5 [2024-11-20 15:01:06,674 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2024-11-20 15:01:06,805 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2024-11-20 15:01:06,858 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2024-11-20 15:01:06,944 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2024-11-20 15:01:06,996 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5 [2024-11-20 15:01:07,050 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2024-11-20 15:01:07,134 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5 [2024-11-20 15:01:07,258 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5 [2024-11-20 15:01:07,306 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5 [2024-11-20 15:01:07,313 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5 [2024-11-20 15:01:08,307 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2024-11-20 15:01:08,316 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5 [2024-11-20 15:01:08,373 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5 [2024-11-20 15:01:08,422 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2024-11-20 15:01:08,484 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2024-11-20 15:01:08,491 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5 [2024-11-20 15:01:08,527 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5 [2024-11-20 15:01:08,533 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5 [2024-11-20 15:01:08,621 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5 [2024-11-20 15:01:08,673 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5 [2024-11-20 15:01:08,722 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2024-11-20 15:01:08,760 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5 [2024-11-20 15:01:08,768 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5 [2024-11-20 15:01:08,827 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5 [2024-11-20 15:01:08,917 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5 [2024-11-20 15:01:09,027 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5 [2024-11-20 15:01:09,036 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5 [2024-11-20 15:01:09,169 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5 [2024-11-20 15:01:09,228 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5 [2024-11-20 15:01:09,265 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5 [2024-11-20 15:01:09,301 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5 [2024-11-20 15:01:09,308 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5 [2024-11-20 15:01:09,344 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5 [2024-11-20 15:01:09,511 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5 [2024-11-20 15:01:09,519 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5 [2024-11-20 15:01:42,944 INFO L349 Elim1Store]: treesize reduction 137, result has 43.2 percent of original size [2024-11-20 15:01:42,945 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 8 new quantified variables, introduced 21 case distinctions, treesize of input 57277 treesize of output 55137 [2024-11-20 15:01:43,195 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-20 15:01:43,274 INFO L349 Elim1Store]: treesize reduction 13, result has 69.0 percent of original size [2024-11-20 15:01:43,275 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 11362 treesize of output 11252 [2024-11-20 15:01:43,439 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-20 15:01:43,461 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-20 15:01:43,461 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 675 treesize of output 655 [2024-11-20 15:01:43,557 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-20 15:01:43,557 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 15 [2024-11-20 15:01:43,608 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4