/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --cacsl2boogietranslator.allow.undefined.functions true --traceabstraction.smt.solver External_ModelsAndUnsatCoreMode --traceabstraction.command.for.external.solver 'z3 -smt2 -in SMTLIB2_COMPLIANT=true' -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Bitvector.epf -i ../../../trunk/examples/svcomp/hardware-verification-bv/btor2c-lazyMod.vis_QF_BV_s1269b_p1.c -------------------------------------------------------------------------------- This is Ultimate 0.2.5-dev-356b6ba-m [2024-11-01 05:45:10,880 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-01 05:45:10,982 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Bitvector.epf [2024-11-01 05:45:10,990 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-01 05:45:10,991 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-01 05:45:11,021 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-01 05:45:11,022 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-01 05:45:11,022 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-01 05:45:11,023 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-01 05:45:11,025 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-01 05:45:11,025 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-01 05:45:11,025 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-01 05:45:11,026 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-01 05:45:11,026 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-01 05:45:11,027 INFO L153 SettingsManager]: * Use SBE=true [2024-11-01 05:45:11,030 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-01 05:45:11,031 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-01 05:45:11,031 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-01 05:45:11,031 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-01 05:45:11,032 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-01 05:45:11,032 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-01 05:45:11,032 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-01 05:45:11,033 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-01 05:45:11,033 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-01 05:45:11,033 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-01 05:45:11,033 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-01 05:45:11,034 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-01 05:45:11,034 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-01 05:45:11,034 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-01 05:45:11,034 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-01 05:45:11,035 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-01 05:45:11,035 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-01 05:45:11,035 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-01 05:45:11,035 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-01 05:45:11,036 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-01 05:45:11,036 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-11-01 05:45:11,036 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-01 05:45:11,040 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-01 05:45:11,040 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-01 05:45:11,040 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-01 05:45:11,040 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-01 05:45:11,040 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2024-11-01 05:45:11,041 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Allow undefined functions -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Command for external solver -> z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-01 05:45:11,414 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-01 05:45:11,441 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-01 05:45:11,444 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-01 05:45:11,445 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-01 05:45:11,445 INFO L274 PluginConnector]: CDTParser initialized [2024-11-01 05:45:11,447 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardware-verification-bv/btor2c-lazyMod.vis_QF_BV_s1269b_p1.c [2024-11-01 05:45:13,039 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-01 05:45:13,303 INFO L384 CDTParser]: Found 1 translation units. [2024-11-01 05:45:13,303 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardware-verification-bv/btor2c-lazyMod.vis_QF_BV_s1269b_p1.c [2024-11-01 05:45:13,318 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9411952eb/26e112823e2a4359816303bb67d752d2/FLAGde60a3021 [2024-11-01 05:45:13,616 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9411952eb/26e112823e2a4359816303bb67d752d2 [2024-11-01 05:45:13,619 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-01 05:45:13,620 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-11-01 05:45:13,621 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-01 05:45:13,621 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-01 05:45:13,627 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-01 05:45:13,628 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.11 05:45:13" (1/1) ... [2024-11-01 05:45:13,629 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7cb6a33a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 05:45:13, skipping insertion in model container [2024-11-01 05:45:13,629 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.11 05:45:13" (1/1) ... [2024-11-01 05:45:13,699 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-01 05:45:13,925 WARN L251 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardware-verification-bv/btor2c-lazyMod.vis_QF_BV_s1269b_p1.c[1259,1272] [2024-11-01 05:45:14,176 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-01 05:45:14,193 INFO L200 MainTranslator]: Completed pre-run [2024-11-01 05:45:14,207 WARN L251 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardware-verification-bv/btor2c-lazyMod.vis_QF_BV_s1269b_p1.c[1259,1272] [2024-11-01 05:45:14,314 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-01 05:45:14,331 INFO L204 MainTranslator]: Completed translation [2024-11-01 05:45:14,333 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 05:45:14 WrapperNode [2024-11-01 05:45:14,334 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-01 05:45:14,335 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-01 05:45:14,336 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-01 05:45:14,336 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-01 05:45:14,343 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 05:45:14" (1/1) ... [2024-11-01 05:45:14,382 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 05:45:14" (1/1) ... [2024-11-01 05:45:14,453 INFO L138 Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 840 [2024-11-01 05:45:14,454 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-01 05:45:14,455 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-01 05:45:14,455 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-01 05:45:14,455 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-01 05:45:14,471 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 05:45:14" (1/1) ... [2024-11-01 05:45:14,471 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 05:45:14" (1/1) ... [2024-11-01 05:45:14,478 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 05:45:14" (1/1) ... [2024-11-01 05:45:14,506 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-01 05:45:14,507 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 05:45:14" (1/1) ... [2024-11-01 05:45:14,507 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 05:45:14" (1/1) ... [2024-11-01 05:45:14,533 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 05:45:14" (1/1) ... [2024-11-01 05:45:14,537 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 05:45:14" (1/1) ... [2024-11-01 05:45:14,544 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 05:45:14" (1/1) ... [2024-11-01 05:45:14,549 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 05:45:14" (1/1) ... [2024-11-01 05:45:14,559 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-01 05:45:14,566 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-01 05:45:14,567 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-01 05:45:14,567 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-01 05:45:14,568 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 05:45:14" (1/1) ... [2024-11-01 05:45:14,579 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-01 05:45:14,595 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-01 05:45:14,613 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) [2024-11-01 05:45:14,631 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 [2024-11-01 05:45:14,659 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-01 05:45:14,660 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-01 05:45:14,660 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-01 05:45:14,661 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-01 05:45:14,904 INFO L238 CfgBuilder]: Building ICFG [2024-11-01 05:45:14,906 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-01 05:45:16,081 INFO L? ?]: Removed 63 outVars from TransFormulas that were not future-live. [2024-11-01 05:45:16,082 INFO L287 CfgBuilder]: Performing block encoding [2024-11-01 05:45:16,094 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-01 05:45:16,094 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-01 05:45:16,095 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.11 05:45:16 BoogieIcfgContainer [2024-11-01 05:45:16,095 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-01 05:45:16,097 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-01 05:45:16,097 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-01 05:45:16,101 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-01 05:45:16,102 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.11 05:45:13" (1/3) ... [2024-11-01 05:45:16,102 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@211f21e0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.11 05:45:16, skipping insertion in model container [2024-11-01 05:45:16,103 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 05:45:14" (2/3) ... [2024-11-01 05:45:16,103 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@211f21e0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.11 05:45:16, skipping insertion in model container [2024-11-01 05:45:16,103 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.11 05:45:16" (3/3) ... [2024-11-01 05:45:16,106 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.vis_QF_BV_s1269b_p1.c [2024-11-01 05:45:16,124 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-01 05:45:16,124 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-01 05:45:16,190 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-01 05:45:16,199 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=LoopHeads, 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;@349bd538, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-01 05:45:16,199 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-01 05:45:16,205 INFO L276 IsEmpty]: Start isEmpty. Operand has 10 states, 8 states have (on average 1.375) internal successors, (11), 9 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) [2024-11-01 05:45:16,211 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2024-11-01 05:45:16,212 INFO L207 NwaCegarLoop]: Found error trace [2024-11-01 05:45:16,213 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2024-11-01 05:45:16,214 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-01 05:45:16,219 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-01 05:45:16,220 INFO L85 PathProgramCache]: Analyzing trace with hash 28694789, now seen corresponding path program 1 times [2024-11-01 05:45:16,228 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-01 05:45:16,229 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1478188085] [2024-11-01 05:45:16,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-01 05:45:16,232 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-01 05:45:16,232 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-01 05:45:16,234 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) [2024-11-01 05:45:16,291 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-01 05:45:16,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-01 05:45:16,584 INFO L255 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-11-01 05:45:16,596 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-01 05:45:16,746 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-01 05:45:16,746 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-01 05:45:16,840 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-01 05:45:16,841 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-01 05:45:16,841 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1478188085] [2024-11-01 05:45:16,841 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [1478188085] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-01 05:45:16,842 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-01 05:45:16,842 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2024-11-01 05:45:16,845 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [945974354] [2024-11-01 05:45:16,846 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-01 05:45:16,851 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-01 05:45:16,851 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-01 05:45:16,874 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-01 05:45:16,875 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-01 05:45:16,877 INFO L87 Difference]: Start difference. First operand has 10 states, 8 states have (on average 1.375) internal successors, (11), 9 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) Second operand has 6 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 6 states have internal predecessors, (8), 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) [2024-11-01 05:45:16,982 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-01 05:45:16,982 INFO L93 Difference]: Finished difference Result 18 states and 23 transitions. [2024-11-01 05:45:16,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-01 05:45:16,986 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 6 states have internal predecessors, (8), 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 5 [2024-11-01 05:45:16,986 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-01 05:45:16,994 INFO L225 Difference]: With dead ends: 18 [2024-11-01 05:45:16,994 INFO L226 Difference]: Without dead ends: 10 [2024-11-01 05:45:16,997 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-01 05:45:17,001 INFO L432 NwaCegarLoop]: 4 mSDtfsCounter, 4 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 14 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-01 05:45:17,002 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 14 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-01 05:45:17,018 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states. [2024-11-01 05:45:17,027 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 9. [2024-11-01 05:45:17,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 8 states have (on average 1.125) internal successors, (9), 8 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) [2024-11-01 05:45:17,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2024-11-01 05:45:17,030 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 5 [2024-11-01 05:45:17,030 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-01 05:45:17,030 INFO L471 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2024-11-01 05:45:17,030 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 6 states have internal predecessors, (8), 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) [2024-11-01 05:45:17,031 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2024-11-01 05:45:17,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-01 05:45:17,031 INFO L207 NwaCegarLoop]: Found error trace [2024-11-01 05:45:17,031 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2024-11-01 05:45:17,054 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-01 05:45:17,235 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 [2024-11-01 05:45:17,236 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-01 05:45:17,237 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-01 05:45:17,237 INFO L85 PathProgramCache]: Analyzing trace with hash 152739811, now seen corresponding path program 1 times [2024-11-01 05:45:17,237 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-01 05:45:17,237 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [62417007] [2024-11-01 05:45:17,238 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-01 05:45:17,238 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-01 05:45:17,238 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-01 05:45:17,239 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) [2024-11-01 05:45:17,240 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-01 05:45:17,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-01 05:45:17,560 INFO L255 TraceCheckSpWp]: Trace formula consists of 132 conjuncts, 27 conjuncts are in the unsatisfiable core [2024-11-01 05:45:17,569 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-01 05:45:17,772 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-01 05:45:17,772 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-01 05:45:18,060 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-01 05:45:18,060 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-01 05:45:18,061 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [62417007] [2024-11-01 05:45:18,061 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [62417007] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-01 05:45:18,061 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-01 05:45:18,061 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2024-11-01 05:45:18,061 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1839288431] [2024-11-01 05:45:18,061 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-01 05:45:18,063 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-01 05:45:18,063 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-01 05:45:18,065 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-01 05:45:18,066 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-11-01 05:45:18,066 INFO L87 Difference]: Start difference. First operand 9 states and 9 transitions. Second operand has 10 states, 10 states have (on average 1.4) internal successors, (14), 10 states have internal predecessors, (14), 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) [2024-11-01 05:45:18,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-01 05:45:18,259 INFO L93 Difference]: Finished difference Result 15 states and 15 transitions. [2024-11-01 05:45:18,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-01 05:45:18,260 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 1.4) internal successors, (14), 10 states have internal predecessors, (14), 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 8 [2024-11-01 05:45:18,260 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-01 05:45:18,260 INFO L225 Difference]: With dead ends: 15 [2024-11-01 05:45:18,260 INFO L226 Difference]: Without dead ends: 13 [2024-11-01 05:45:18,261 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2024-11-01 05:45:18,262 INFO L432 NwaCegarLoop]: 4 mSDtfsCounter, 4 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 16 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-01 05:45:18,262 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 16 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-01 05:45:18,263 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2024-11-01 05:45:18,265 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 12. [2024-11-01 05:45:18,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 11 states have (on average 1.0909090909090908) internal successors, (12), 11 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-01 05:45:18,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2024-11-01 05:45:18,266 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 12 transitions. Word has length 8 [2024-11-01 05:45:18,266 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-01 05:45:18,267 INFO L471 AbstractCegarLoop]: Abstraction has 12 states and 12 transitions. [2024-11-01 05:45:18,267 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 1.4) internal successors, (14), 10 states have internal predecessors, (14), 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) [2024-11-01 05:45:18,267 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2024-11-01 05:45:18,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-11-01 05:45:18,267 INFO L207 NwaCegarLoop]: Found error trace [2024-11-01 05:45:18,268 INFO L215 NwaCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1] [2024-11-01 05:45:18,288 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-01 05:45:18,471 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 [2024-11-01 05:45:18,472 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-01 05:45:18,473 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-01 05:45:18,473 INFO L85 PathProgramCache]: Analyzing trace with hash 1906115653, now seen corresponding path program 2 times [2024-11-01 05:45:18,473 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-01 05:45:18,473 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1345002567] [2024-11-01 05:45:18,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-01 05:45:18,473 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-01 05:45:18,474 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-01 05:45:18,476 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) [2024-11-01 05:45:18,482 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-01 05:45:18,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-01 05:45:18,898 INFO L255 TraceCheckSpWp]: Trace formula consists of 172 conjuncts, 34 conjuncts are in the unsatisfiable core [2024-11-01 05:45:18,910 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-01 05:45:19,170 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-01 05:45:19,170 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-01 05:45:19,686 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-01 05:45:19,687 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-01 05:45:19,687 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1345002567] [2024-11-01 05:45:19,687 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [1345002567] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-01 05:45:19,687 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-01 05:45:19,687 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 12 [2024-11-01 05:45:19,688 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [61216898] [2024-11-01 05:45:19,688 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-01 05:45:19,688 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-01 05:45:19,688 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-01 05:45:19,689 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-01 05:45:19,690 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2024-11-01 05:45:19,690 INFO L87 Difference]: Start difference. First operand 12 states and 12 transitions. Second operand has 12 states, 12 states have (on average 1.6666666666666667) internal successors, (20), 12 states have internal predecessors, (20), 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) [2024-11-01 05:45:20,136 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-01 05:45:20,137 INFO L93 Difference]: Finished difference Result 21 states and 22 transitions. [2024-11-01 05:45:20,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-01 05:45:20,137 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 1.6666666666666667) internal successors, (20), 12 states have internal predecessors, (20), 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 [2024-11-01 05:45:20,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-01 05:45:20,138 INFO L225 Difference]: With dead ends: 21 [2024-11-01 05:45:20,138 INFO L226 Difference]: Without dead ends: 19 [2024-11-01 05:45:20,139 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=63, Invalid=177, Unknown=0, NotChecked=0, Total=240 [2024-11-01 05:45:20,140 INFO L432 NwaCegarLoop]: 4 mSDtfsCounter, 10 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 21 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-01 05:45:20,140 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 21 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-01 05:45:20,141 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2024-11-01 05:45:20,145 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 18. [2024-11-01 05:45:20,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 17 states have (on average 1.0588235294117647) internal successors, (18), 17 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-01 05:45:20,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 18 transitions. [2024-11-01 05:45:20,146 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 18 transitions. Word has length 11 [2024-11-01 05:45:20,146 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-01 05:45:20,146 INFO L471 AbstractCegarLoop]: Abstraction has 18 states and 18 transitions. [2024-11-01 05:45:20,147 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 1.6666666666666667) internal successors, (20), 12 states have internal predecessors, (20), 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) [2024-11-01 05:45:20,147 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 18 transitions. [2024-11-01 05:45:20,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2024-11-01 05:45:20,147 INFO L207 NwaCegarLoop]: Found error trace [2024-11-01 05:45:20,148 INFO L215 NwaCegarLoop]: trace histogram [5, 4, 4, 1, 1, 1, 1] [2024-11-01 05:45:20,171 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-01 05:45:20,351 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-01 05:45:20,352 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-01 05:45:20,352 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-01 05:45:20,353 INFO L85 PathProgramCache]: Analyzing trace with hash -37306491, now seen corresponding path program 3 times [2024-11-01 05:45:20,353 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-01 05:45:20,353 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1227780890] [2024-11-01 05:45:20,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-01 05:45:20,353 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-01 05:45:20,353 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-01 05:45:20,358 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) [2024-11-01 05:45:20,360 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-01 05:45:20,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-01 05:45:20,880 INFO L255 TraceCheckSpWp]: Trace formula consists of 252 conjuncts, 27 conjuncts are in the unsatisfiable core [2024-11-01 05:45:20,894 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-01 05:45:21,077 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 4 proven. 7 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-11-01 05:45:21,078 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-01 05:45:21,138 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-01 05:45:21,138 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-01 05:45:21,138 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1227780890] [2024-11-01 05:45:21,139 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [1227780890] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-01 05:45:21,139 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-01 05:45:21,139 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 8 [2024-11-01 05:45:21,139 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1480130344] [2024-11-01 05:45:21,139 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-01 05:45:21,139 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-01 05:45:21,140 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-01 05:45:21,140 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-01 05:45:21,140 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-01 05:45:21,141 INFO L87 Difference]: Start difference. First operand 18 states and 18 transitions. Second operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-01 05:45:21,273 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-01 05:45:21,274 INFO L93 Difference]: Finished difference Result 18 states and 18 transitions. [2024-11-01 05:45:21,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-01 05:45:21,277 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2024-11-01 05:45:21,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-01 05:45:21,277 INFO L225 Difference]: With dead ends: 18 [2024-11-01 05:45:21,277 INFO L226 Difference]: Without dead ends: 0 [2024-11-01 05:45:21,278 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-01 05:45:21,279 INFO L432 NwaCegarLoop]: 5 mSDtfsCounter, 2 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 9 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-01 05:45:21,279 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 9 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-01 05:45:21,280 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-01 05:45:21,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-01 05:45:21,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-01 05:45:21,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-01 05:45:21,280 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 17 [2024-11-01 05:45:21,281 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-01 05:45:21,281 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-01 05:45:21,281 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-01 05:45:21,281 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-01 05:45:21,281 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-01 05:45:21,284 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-01 05:45:21,309 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-01 05:45:21,484 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-01 05:45:21,488 INFO L407 BasicCegarLoop]: Path program histogram: [3, 1] [2024-11-01 05:45:21,490 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-01 05:45:21,605 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-01 05:45:21,623 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression [2024-11-01 05:45:21,625 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.11 05:45:21 BoogieIcfgContainer [2024-11-01 05:45:21,625 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-01 05:45:21,627 INFO L158 Benchmark]: Toolchain (without parser) took 8006.02ms. Allocated memory was 198.2MB in the beginning and 310.4MB in the end (delta: 112.2MB). Free memory was 151.4MB in the beginning and 138.7MB in the end (delta: 12.8MB). Peak memory consumption was 125.5MB. Max. memory is 8.0GB. [2024-11-01 05:45:21,628 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 198.2MB. Free memory was 174.0MB in the beginning and 173.9MB in the end (delta: 110.1kB). There was no memory consumed. Max. memory is 8.0GB. [2024-11-01 05:45:21,628 INFO L158 Benchmark]: CACSL2BoogieTranslator took 713.10ms. Allocated memory is still 198.2MB. Free memory was 150.9MB in the beginning and 116.8MB in the end (delta: 34.1MB). Peak memory consumption was 34.6MB. Max. memory is 8.0GB. [2024-11-01 05:45:21,631 INFO L158 Benchmark]: Boogie Procedure Inliner took 119.45ms. Allocated memory is still 198.2MB. Free memory was 116.8MB in the beginning and 110.0MB in the end (delta: 6.8MB). Peak memory consumption was 6.3MB. Max. memory is 8.0GB. [2024-11-01 05:45:21,631 INFO L158 Benchmark]: Boogie Preprocessor took 104.29ms. Allocated memory is still 198.2MB. Free memory was 110.0MB in the beginning and 102.2MB in the end (delta: 7.9MB). Peak memory consumption was 8.4MB. Max. memory is 8.0GB. [2024-11-01 05:45:21,632 INFO L158 Benchmark]: RCFGBuilder took 1528.75ms. Allocated memory was 198.2MB in the beginning and 257.9MB in the end (delta: 59.8MB). Free memory was 102.2MB in the beginning and 98.8MB in the end (delta: 3.3MB). Peak memory consumption was 75.7MB. Max. memory is 8.0GB. [2024-11-01 05:45:21,632 INFO L158 Benchmark]: TraceAbstraction took 5528.81ms. Allocated memory was 257.9MB in the beginning and 310.4MB in the end (delta: 52.4MB). Free memory was 98.3MB in the beginning and 138.7MB in the end (delta: -40.4MB). Peak memory consumption was 12.1MB. Max. memory is 8.0GB. [2024-11-01 05:45:21,634 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 198.2MB. Free memory was 174.0MB in the beginning and 173.9MB in the end (delta: 110.1kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 713.10ms. Allocated memory is still 198.2MB. Free memory was 150.9MB in the beginning and 116.8MB in the end (delta: 34.1MB). Peak memory consumption was 34.6MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 119.45ms. Allocated memory is still 198.2MB. Free memory was 116.8MB in the beginning and 110.0MB in the end (delta: 6.8MB). Peak memory consumption was 6.3MB. Max. memory is 8.0GB. * Boogie Preprocessor took 104.29ms. Allocated memory is still 198.2MB. Free memory was 110.0MB in the beginning and 102.2MB in the end (delta: 7.9MB). Peak memory consumption was 8.4MB. Max. memory is 8.0GB. * RCFGBuilder took 1528.75ms. Allocated memory was 198.2MB in the beginning and 257.9MB in the end (delta: 59.8MB). Free memory was 102.2MB in the beginning and 98.8MB in the end (delta: 3.3MB). Peak memory consumption was 75.7MB. Max. memory is 8.0GB. * TraceAbstraction took 5528.81ms. Allocated memory was 257.9MB in the beginning and 310.4MB in the end (delta: 52.4MB). Free memory was 98.3MB in the beginning and 138.7MB in the end (delta: -40.4MB). Peak memory consumption was 12.1MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 21]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 10 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 5.3s, OverallIterations: 4, TraceHistogramMax: 5, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 0.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 20 SdHoareTripleChecker+Valid, 0.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 20 mSDsluCounter, 60 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 43 mSDsCounter, 2 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 77 IncrementalHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2 mSolverCounterUnsat, 17 mSDtfsCounter, 77 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 82 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 1.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=18occurred in iteration=3, InterpolantAutomatonStates: 24, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 3 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.6s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 1.8s InterpolantComputationTime, 41 NumberOfCodeBlocks, 41 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 74 ConstructedInterpolants, 16 QuantifiedInterpolants, 3616 SizeOfPredicates, 23 NumberOfNonLiveVariables, 648 ConjunctsInSsa, 106 ConjunctsInUnsatCore, 8 InterpolantComputations, 3 PerfectInterpolantSequences, 45/70 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 120]: Loop Invariant Derived loop invariant: null RESULT: Ultimate proved your program to be correct! [2024-11-01 05:45:21,665 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request...