/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 bitwuzla -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf -i ../../../trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount250_file-8.i -------------------------------------------------------------------------------- This is Ultimate 0.2.5-dev-b75d321-m [2024-11-03 12:55:23,078 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-03 12:55:23,135 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-11-03 12:55:23,139 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-03 12:55:23,139 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-03 12:55:23,165 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-03 12:55:23,165 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-03 12:55:23,165 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-03 12:55:23,166 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-03 12:55:23,166 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-03 12:55:23,166 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-03 12:55:23,167 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-03 12:55:23,167 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-03 12:55:23,167 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-03 12:55:23,167 INFO L153 SettingsManager]: * Use SBE=true [2024-11-03 12:55:23,168 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-03 12:55:23,168 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-03 12:55:23,170 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-03 12:55:23,170 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-03 12:55:23,170 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-03 12:55:23,172 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-03 12:55:23,172 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-03 12:55:23,173 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-03 12:55:23,173 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-03 12:55:23,173 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-03 12:55:23,173 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-03 12:55:23,173 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-03 12:55:23,173 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-03 12:55:23,174 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-03 12:55:23,174 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-03 12:55:23,174 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-03 12:55:23,174 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-03 12:55:23,174 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-03 12:55:23,174 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-03 12:55:23,175 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-03 12:55:23,175 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-03 12:55:23,175 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-03 12:55:23,177 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-03 12:55:23,177 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-11-03 12:55:23,177 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-03 12:55:23,177 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-03 12:55:23,178 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-03 12:55:23,178 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-03 12:55:23,178 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-03 12:55:23,178 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Allow undefined functions -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Command for external solver -> bitwuzla [2024-11-03 12:55:23,371 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-03 12:55:23,391 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-03 12:55:23,394 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-03 12:55:23,395 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-03 12:55:23,395 INFO L274 PluginConnector]: CDTParser initialized [2024-11-03 12:55:23,396 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount250_file-8.i [2024-11-03 12:55:24,752 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-03 12:55:24,942 INFO L384 CDTParser]: Found 1 translation units. [2024-11-03 12:55:24,942 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount250_file-8.i [2024-11-03 12:55:24,950 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9d797d925/3b36ad0c45644f50a598a8e68a9cda39/FLAGa0e45dd98 [2024-11-03 12:55:24,962 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9d797d925/3b36ad0c45644f50a598a8e68a9cda39 [2024-11-03 12:55:24,964 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-03 12:55:24,965 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-11-03 12:55:24,966 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-03 12:55:24,966 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-03 12:55:24,973 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-03 12:55:24,974 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 12:55:24" (1/1) ... [2024-11-03 12:55:24,975 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@645fb4cf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:55:24, skipping insertion in model container [2024-11-03 12:55:24,975 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 12:55:24" (1/1) ... [2024-11-03 12:55:25,018 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-03 12:55:25,171 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount250_file-8.i[915,928] [2024-11-03 12:55:25,286 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-03 12:55:25,297 INFO L200 MainTranslator]: Completed pre-run [2024-11-03 12:55:25,307 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount250_file-8.i[915,928] [2024-11-03 12:55:25,375 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-03 12:55:25,391 INFO L204 MainTranslator]: Completed translation [2024-11-03 12:55:25,392 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:55:25 WrapperNode [2024-11-03 12:55:25,392 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-03 12:55:25,393 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-03 12:55:25,393 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-03 12:55:25,393 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-03 12:55:25,399 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:55:25" (1/1) ... [2024-11-03 12:55:25,432 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:55:25" (1/1) ... [2024-11-03 12:55:25,485 INFO L138 Inliner]: procedures = 27, calls = 63, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 336 [2024-11-03 12:55:25,485 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-03 12:55:25,486 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-03 12:55:25,486 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-03 12:55:25,486 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-03 12:55:25,497 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:55:25" (1/1) ... [2024-11-03 12:55:25,498 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:55:25" (1/1) ... [2024-11-03 12:55:25,507 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:55:25" (1/1) ... [2024-11-03 12:55:25,564 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]. [2024-11-03 12:55:25,564 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:55:25" (1/1) ... [2024-11-03 12:55:25,565 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:55:25" (1/1) ... [2024-11-03 12:55:25,600 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:55:25" (1/1) ... [2024-11-03 12:55:25,618 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:55:25" (1/1) ... [2024-11-03 12:55:25,629 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:55:25" (1/1) ... [2024-11-03 12:55:25,632 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:55:25" (1/1) ... [2024-11-03 12:55:25,645 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-03 12:55:25,646 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-03 12:55:25,646 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-03 12:55:25,647 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-03 12:55:25,647 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:55:25" (1/1) ... [2024-11-03 12:55:25,660 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-03 12:55:25,667 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-03 12:55:25,677 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) [2024-11-03 12:55:25,679 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 [2024-11-03 12:55:25,700 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-03 12:55:25,700 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-03 12:55:25,700 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-03 12:55:25,700 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-03 12:55:25,701 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-03 12:55:25,701 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-03 12:55:25,802 INFO L238 CfgBuilder]: Building ICFG [2024-11-03 12:55:25,804 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-03 12:55:30,739 INFO L? ?]: Removed 44 outVars from TransFormulas that were not future-live. [2024-11-03 12:55:30,739 INFO L287 CfgBuilder]: Performing block encoding [2024-11-03 12:55:30,760 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-03 12:55:30,760 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-03 12:55:30,761 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 12:55:30 BoogieIcfgContainer [2024-11-03 12:55:30,761 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-03 12:55:30,762 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-03 12:55:30,763 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-03 12:55:30,766 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-03 12:55:30,766 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 12:55:24" (1/3) ... [2024-11-03 12:55:30,767 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b48d346 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 12:55:30, skipping insertion in model container [2024-11-03 12:55:30,767 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:55:25" (2/3) ... [2024-11-03 12:55:30,767 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b48d346 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 12:55:30, skipping insertion in model container [2024-11-03 12:55:30,767 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 12:55:30" (3/3) ... [2024-11-03 12:55:30,769 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount250_file-8.i [2024-11-03 12:55:30,781 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-03 12:55:30,782 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-03 12:55:30,830 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-03 12:55:30,834 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;@78b45e3d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-03 12:55:30,835 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-03 12:55:30,838 INFO L276 IsEmpty]: Start isEmpty. Operand has 154 states, 101 states have (on average 1.5148514851485149) internal successors, (153), 102 states have internal predecessors, (153), 50 states have call successors, (50), 1 states have call predecessors, (50), 1 states have return successors, (50), 50 states have call predecessors, (50), 50 states have call successors, (50) [2024-11-03 12:55:30,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 323 [2024-11-03 12:55:30,853 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 12:55:30,854 INFO L215 NwaCegarLoop]: trace histogram [50, 50, 50, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-03 12:55:30,854 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 12:55:30,858 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 12:55:30,858 INFO L85 PathProgramCache]: Analyzing trace with hash 1272070780, now seen corresponding path program 1 times [2024-11-03 12:55:30,864 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 12:55:30,864 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2031802106] [2024-11-03 12:55:30,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 12:55:30,866 INFO L173 SolverBuilder]: Constructing external solver with command: bitwuzla [2024-11-03 12:55:30,866 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-03 12:55:30,872 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (exit command is (exit), workingDir is null) [2024-11-03 12:55:30,873 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (2)] Waiting until timeout for monitored process [2024-11-03 12:55:31,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 12:55:31,041 INFO L255 TraceCheckSpWp]: Trace formula consists of 513 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-03 12:55:31,054 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 12:55:31,105 INFO L134 CoverageAnalysis]: Checked inductivity of 4900 backedges. 98 proven. 0 refuted. 0 times theorem prover too weak. 4802 trivial. 0 not checked. [2024-11-03 12:55:31,106 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 12:55:31,955 INFO L134 CoverageAnalysis]: Checked inductivity of 4900 backedges. 98 proven. 0 refuted. 0 times theorem prover too weak. 4802 trivial. 0 not checked. [2024-11-03 12:55:31,956 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 12:55:31,957 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2031802106] [2024-11-03 12:55:31,957 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [2031802106] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-03 12:55:31,957 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-03 12:55:31,958 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2024-11-03 12:55:31,959 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [17173077] [2024-11-03 12:55:31,960 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-03 12:55:31,965 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-03 12:55:31,966 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 12:55:31,985 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-03 12:55:31,986 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-03 12:55:31,988 INFO L87 Difference]: Start difference. First operand has 154 states, 101 states have (on average 1.5148514851485149) internal successors, (153), 102 states have internal predecessors, (153), 50 states have call successors, (50), 1 states have call predecessors, (50), 1 states have return successors, (50), 50 states have call predecessors, (50), 50 states have call successors, (50) Second operand has 2 states, 2 states have (on average 38.5) internal successors, (77), 2 states have internal predecessors, (77), 1 states have call successors, (50), 1 states have call predecessors, (50), 2 states have return successors, (50), 2 states have call predecessors, (50), 1 states have call successors, (50) [2024-11-03 12:55:32,027 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 12:55:32,031 INFO L93 Difference]: Finished difference Result 301 states and 550 transitions. [2024-11-03 12:55:32,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-03 12:55:32,036 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 38.5) internal successors, (77), 2 states have internal predecessors, (77), 1 states have call successors, (50), 1 states have call predecessors, (50), 2 states have return successors, (50), 2 states have call predecessors, (50), 1 states have call successors, (50) Word has length 322 [2024-11-03 12:55:32,036 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 12:55:32,044 INFO L225 Difference]: With dead ends: 301 [2024-11-03 12:55:32,044 INFO L226 Difference]: Without dead ends: 150 [2024-11-03 12:55:32,048 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 642 GetRequests, 642 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-03 12:55:32,051 INFO L432 NwaCegarLoop]: 246 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 246 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-03 12:55:32,053 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 246 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-03 12:55:32,068 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150 states. [2024-11-03 12:55:32,094 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150 to 150. [2024-11-03 12:55:32,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 150 states, 98 states have (on average 1.489795918367347) internal successors, (146), 98 states have internal predecessors, (146), 50 states have call successors, (50), 1 states have call predecessors, (50), 1 states have return successors, (50), 50 states have call predecessors, (50), 50 states have call successors, (50) [2024-11-03 12:55:32,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 246 transitions. [2024-11-03 12:55:32,103 INFO L78 Accepts]: Start accepts. Automaton has 150 states and 246 transitions. Word has length 322 [2024-11-03 12:55:32,103 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 12:55:32,103 INFO L471 AbstractCegarLoop]: Abstraction has 150 states and 246 transitions. [2024-11-03 12:55:32,104 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 38.5) internal successors, (77), 2 states have internal predecessors, (77), 1 states have call successors, (50), 1 states have call predecessors, (50), 2 states have return successors, (50), 2 states have call predecessors, (50), 1 states have call successors, (50) [2024-11-03 12:55:32,104 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 246 transitions. [2024-11-03 12:55:32,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 323 [2024-11-03 12:55:32,113 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 12:55:32,114 INFO L215 NwaCegarLoop]: trace histogram [50, 50, 50, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-03 12:55:32,121 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (2)] Ended with exit code 0 [2024-11-03 12:55:32,314 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-03 12:55:32,315 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 12:55:32,316 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 12:55:32,316 INFO L85 PathProgramCache]: Analyzing trace with hash 963929796, now seen corresponding path program 1 times [2024-11-03 12:55:32,319 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 12:55:32,319 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2093213444] [2024-11-03 12:55:32,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 12:55:32,320 INFO L173 SolverBuilder]: Constructing external solver with command: bitwuzla [2024-11-03 12:55:32,320 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-03 12:55:32,322 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (exit command is (exit), workingDir is null) [2024-11-03 12:55:32,329 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (3)] Waiting until timeout for monitored process [2024-11-03 12:55:32,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 12:55:32,465 INFO L255 TraceCheckSpWp]: Trace formula consists of 513 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-03 12:55:32,476 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 12:55:32,662 INFO L134 CoverageAnalysis]: Checked inductivity of 4900 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4900 trivial. 0 not checked. [2024-11-03 12:55:32,662 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 12:55:33,520 INFO L134 CoverageAnalysis]: Checked inductivity of 4900 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4900 trivial. 0 not checked. [2024-11-03 12:55:33,520 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 12:55:33,521 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2093213444] [2024-11-03 12:55:33,521 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [2093213444] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-03 12:55:33,521 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-03 12:55:33,521 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2024-11-03 12:55:33,521 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [500010549] [2024-11-03 12:55:33,521 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-03 12:55:33,523 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-03 12:55:33,523 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 12:55:33,524 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-03 12:55:33,524 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-03 12:55:33,524 INFO L87 Difference]: Start difference. First operand 150 states and 246 transitions. Second operand has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 1 states have call successors, (50), 1 states have call predecessors, (50), 1 states have return successors, (50), 1 states have call predecessors, (50), 1 states have call successors, (50) [2024-11-03 12:55:36,676 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.77s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-03 12:55:36,854 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 12:55:36,854 INFO L93 Difference]: Finished difference Result 431 states and 706 transitions. [2024-11-03 12:55:36,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-03 12:55:36,855 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 1 states have call successors, (50), 1 states have call predecessors, (50), 1 states have return successors, (50), 1 states have call predecessors, (50), 1 states have call successors, (50) Word has length 322 [2024-11-03 12:55:36,856 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 12:55:36,860 INFO L225 Difference]: With dead ends: 431 [2024-11-03 12:55:36,861 INFO L226 Difference]: Without dead ends: 284 [2024-11-03 12:55:36,862 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 642 GetRequests, 641 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-03 12:55:36,863 INFO L432 NwaCegarLoop]: 427 mSDtfsCounter, 198 mSDsluCounter, 196 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 198 SdHoareTripleChecker+Valid, 623 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2024-11-03 12:55:36,863 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [198 Valid, 623 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2024-11-03 12:55:36,864 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 284 states. [2024-11-03 12:55:36,893 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 284 to 282. [2024-11-03 12:55:36,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 282 states, 179 states have (on average 1.3966480446927374) internal successors, (250), 179 states have internal predecessors, (250), 100 states have call successors, (100), 2 states have call predecessors, (100), 2 states have return successors, (100), 100 states have call predecessors, (100), 100 states have call successors, (100) [2024-11-03 12:55:36,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 282 states to 282 states and 450 transitions. [2024-11-03 12:55:36,898 INFO L78 Accepts]: Start accepts. Automaton has 282 states and 450 transitions. Word has length 322 [2024-11-03 12:55:36,899 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 12:55:36,899 INFO L471 AbstractCegarLoop]: Abstraction has 282 states and 450 transitions. [2024-11-03 12:55:36,900 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 1 states have call successors, (50), 1 states have call predecessors, (50), 1 states have return successors, (50), 1 states have call predecessors, (50), 1 states have call successors, (50) [2024-11-03 12:55:36,900 INFO L276 IsEmpty]: Start isEmpty. Operand 282 states and 450 transitions. [2024-11-03 12:55:36,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 323 [2024-11-03 12:55:36,903 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 12:55:36,903 INFO L215 NwaCegarLoop]: trace histogram [50, 50, 50, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-03 12:55:36,906 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (3)] Ended with exit code 0 [2024-11-03 12:55:37,106 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-03 12:55:37,107 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 12:55:37,107 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 12:55:37,107 INFO L85 PathProgramCache]: Analyzing trace with hash -215528324, now seen corresponding path program 1 times [2024-11-03 12:55:37,107 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 12:55:37,108 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [856678607] [2024-11-03 12:55:37,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 12:55:37,108 INFO L173 SolverBuilder]: Constructing external solver with command: bitwuzla [2024-11-03 12:55:37,108 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-03 12:55:37,110 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (exit command is (exit), workingDir is null) [2024-11-03 12:55:37,111 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (4)] Waiting until timeout for monitored process [2024-11-03 12:55:37,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 12:55:37,278 INFO L255 TraceCheckSpWp]: Trace formula consists of 512 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-03 12:55:37,285 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 12:55:40,253 INFO L134 CoverageAnalysis]: Checked inductivity of 4900 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4900 trivial. 0 not checked. [2024-11-03 12:55:40,253 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 12:55:42,528 INFO L134 CoverageAnalysis]: Checked inductivity of 4900 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4900 trivial. 0 not checked. [2024-11-03 12:55:42,528 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 12:55:42,529 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [856678607] [2024-11-03 12:55:42,529 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [856678607] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-03 12:55:42,529 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-03 12:55:42,529 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 3] imperfect sequences [] total 3 [2024-11-03 12:55:42,529 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1423735496] [2024-11-03 12:55:42,529 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-03 12:55:42,530 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-03 12:55:42,530 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 12:55:42,531 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-03 12:55:42,531 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-03 12:55:42,531 INFO L87 Difference]: Start difference. First operand 282 states and 450 transitions. Second operand has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 1 states have call successors, (100), 2 states have call predecessors, (100), 2 states have return successors, (100), 1 states have call predecessors, (100), 1 states have call successors, (100) [2024-11-03 12:55:45,566 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.53s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-03 12:55:48,658 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.95s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-03 12:55:48,676 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 12:55:48,676 INFO L93 Difference]: Finished difference Result 837 states and 1340 transitions. [2024-11-03 12:55:48,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-03 12:55:48,725 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 1 states have call successors, (100), 2 states have call predecessors, (100), 2 states have return successors, (100), 1 states have call predecessors, (100), 1 states have call successors, (100) Word has length 322 [2024-11-03 12:55:48,728 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 12:55:48,733 INFO L225 Difference]: With dead ends: 837 [2024-11-03 12:55:48,733 INFO L226 Difference]: Without dead ends: 558 [2024-11-03 12:55:48,734 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 642 GetRequests, 640 SyntacticMatches, 1 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-03 12:55:48,735 INFO L432 NwaCegarLoop]: 230 mSDtfsCounter, 80 mSDsluCounter, 214 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 80 SdHoareTripleChecker+Valid, 444 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.1s IncrementalHoareTripleChecker+Time [2024-11-03 12:55:48,735 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [80 Valid, 444 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 6.1s Time] [2024-11-03 12:55:48,737 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 558 states. [2024-11-03 12:55:48,777 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 558 to 546. [2024-11-03 12:55:48,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 546 states, 341 states have (on average 1.3929618768328447) internal successors, (475), 341 states have internal predecessors, (475), 200 states have call successors, (200), 4 states have call predecessors, (200), 4 states have return successors, (200), 200 states have call predecessors, (200), 200 states have call successors, (200) [2024-11-03 12:55:48,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 546 states to 546 states and 875 transitions. [2024-11-03 12:55:48,783 INFO L78 Accepts]: Start accepts. Automaton has 546 states and 875 transitions. Word has length 322 [2024-11-03 12:55:48,783 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 12:55:48,783 INFO L471 AbstractCegarLoop]: Abstraction has 546 states and 875 transitions. [2024-11-03 12:55:48,784 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 1 states have call successors, (100), 2 states have call predecessors, (100), 2 states have return successors, (100), 1 states have call predecessors, (100), 1 states have call successors, (100) [2024-11-03 12:55:48,784 INFO L276 IsEmpty]: Start isEmpty. Operand 546 states and 875 transitions. [2024-11-03 12:55:48,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 323 [2024-11-03 12:55:48,786 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 12:55:48,786 INFO L215 NwaCegarLoop]: trace histogram [50, 50, 50, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-03 12:55:48,811 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (4)] Forceful destruction successful, exit code 0 [2024-11-03 12:55:48,986 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-03 12:55:48,987 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 12:55:48,988 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 12:55:48,988 INFO L85 PathProgramCache]: Analyzing trace with hash 207173502, now seen corresponding path program 1 times [2024-11-03 12:55:48,988 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 12:55:48,988 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1958287857] [2024-11-03 12:55:48,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 12:55:48,988 INFO L173 SolverBuilder]: Constructing external solver with command: bitwuzla [2024-11-03 12:55:48,988 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-03 12:55:48,991 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (exit command is (exit), workingDir is null) [2024-11-03 12:55:48,992 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (5)] Waiting until timeout for monitored process [2024-11-03 12:55:49,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 12:55:49,190 INFO L255 TraceCheckSpWp]: Trace formula consists of 511 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-03 12:55:49,196 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 12:55:58,553 INFO L134 CoverageAnalysis]: Checked inductivity of 4900 backedges. 1985 proven. 210 refuted. 0 times theorem prover too weak. 2705 trivial. 0 not checked. [2024-11-03 12:55:58,553 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 12:56:03,203 INFO L134 CoverageAnalysis]: Checked inductivity of 4900 backedges. 78 proven. 213 refuted. 0 times theorem prover too weak. 4609 trivial. 0 not checked. [2024-11-03 12:56:03,204 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 12:56:03,204 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1958287857] [2024-11-03 12:56:03,204 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [1958287857] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-03 12:56:03,204 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-03 12:56:03,204 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 16 [2024-11-03 12:56:03,204 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [725599867] [2024-11-03 12:56:03,204 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-03 12:56:03,208 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-03 12:56:03,209 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 12:56:03,210 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-03 12:56:03,210 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=92, Invalid=148, Unknown=0, NotChecked=0, Total=240 [2024-11-03 12:56:03,210 INFO L87 Difference]: Start difference. First operand 546 states and 875 transitions. Second operand has 16 states, 15 states have (on average 9.066666666666666) internal successors, (136), 14 states have internal predecessors, (136), 5 states have call successors, (100), 4 states have call predecessors, (100), 7 states have return successors, (100), 5 states have call predecessors, (100), 5 states have call successors, (100) [2024-11-03 12:56:10,808 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.19s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-03 12:56:14,653 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.47s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2024-11-03 12:56:24,795 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.49s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2024-11-03 12:56:25,396 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 12:56:25,396 INFO L93 Difference]: Finished difference Result 1526 states and 2408 transitions. [2024-11-03 12:56:25,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-11-03 12:56:25,397 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 9.066666666666666) internal successors, (136), 14 states have internal predecessors, (136), 5 states have call successors, (100), 4 states have call predecessors, (100), 7 states have return successors, (100), 5 states have call predecessors, (100), 5 states have call successors, (100) Word has length 322 [2024-11-03 12:56:25,397 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 12:56:25,402 INFO L225 Difference]: With dead ends: 1526 [2024-11-03 12:56:25,402 INFO L226 Difference]: Without dead ends: 983 [2024-11-03 12:56:25,404 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 653 GetRequests, 628 SyntacticMatches, 1 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 202 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=265, Invalid=385, Unknown=0, NotChecked=0, Total=650 [2024-11-03 12:56:25,405 INFO L432 NwaCegarLoop]: 190 mSDtfsCounter, 1028 mSDsluCounter, 926 mSDsCounter, 0 mSdLazyCounter, 1082 mSolverCounterSat, 324 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 19.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1068 SdHoareTripleChecker+Valid, 1116 SdHoareTripleChecker+Invalid, 1406 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 324 IncrementalHoareTripleChecker+Valid, 1082 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 20.8s IncrementalHoareTripleChecker+Time [2024-11-03 12:56:25,405 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1068 Valid, 1116 Invalid, 1406 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [324 Valid, 1082 Invalid, 0 Unknown, 0 Unchecked, 20.8s Time] [2024-11-03 12:56:25,406 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 983 states. [2024-11-03 12:56:25,462 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 983 to 703. [2024-11-03 12:56:25,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 703 states, 466 states have (on average 1.3969957081545064) internal successors, (651), 468 states have internal predecessors, (651), 226 states have call successors, (226), 10 states have call predecessors, (226), 10 states have return successors, (226), 224 states have call predecessors, (226), 226 states have call successors, (226) [2024-11-03 12:56:25,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 703 states to 703 states and 1103 transitions. [2024-11-03 12:56:25,467 INFO L78 Accepts]: Start accepts. Automaton has 703 states and 1103 transitions. Word has length 322 [2024-11-03 12:56:25,468 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 12:56:25,468 INFO L471 AbstractCegarLoop]: Abstraction has 703 states and 1103 transitions. [2024-11-03 12:56:25,468 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 9.066666666666666) internal successors, (136), 14 states have internal predecessors, (136), 5 states have call successors, (100), 4 states have call predecessors, (100), 7 states have return successors, (100), 5 states have call predecessors, (100), 5 states have call successors, (100) [2024-11-03 12:56:25,468 INFO L276 IsEmpty]: Start isEmpty. Operand 703 states and 1103 transitions. [2024-11-03 12:56:25,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 323 [2024-11-03 12:56:25,470 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 12:56:25,470 INFO L215 NwaCegarLoop]: trace histogram [50, 50, 50, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-03 12:56:25,487 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (5)] Ended with exit code 0 [2024-11-03 12:56:25,674 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-03 12:56:25,678 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 12:56:25,679 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 12:56:25,679 INFO L85 PathProgramCache]: Analyzing trace with hash -1786971204, now seen corresponding path program 1 times [2024-11-03 12:56:25,679 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 12:56:25,679 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2106830898] [2024-11-03 12:56:25,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 12:56:25,679 INFO L173 SolverBuilder]: Constructing external solver with command: bitwuzla [2024-11-03 12:56:25,679 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-03 12:56:25,681 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (exit command is (exit), workingDir is null) [2024-11-03 12:56:25,684 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (6)] Waiting until timeout for monitored process [2024-11-03 12:56:25,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 12:56:25,822 INFO L255 TraceCheckSpWp]: Trace formula consists of 511 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-03 12:56:25,827 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 12:56:33,665 INFO L134 CoverageAnalysis]: Checked inductivity of 4900 backedges. 2443 proven. 84 refuted. 0 times theorem prover too weak. 2373 trivial. 0 not checked. [2024-11-03 12:56:33,666 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 12:56:47,675 INFO L134 CoverageAnalysis]: Checked inductivity of 4900 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4900 trivial. 0 not checked. [2024-11-03 12:56:47,675 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 12:56:47,675 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2106830898] [2024-11-03 12:56:47,675 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [2106830898] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-03 12:56:47,675 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-03 12:56:47,675 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [7] total 14 [2024-11-03 12:56:47,675 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [847610644] [2024-11-03 12:56:47,676 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-03 12:56:47,676 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-03 12:56:47,676 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 12:56:47,677 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-03 12:56:47,677 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=136, Unknown=0, NotChecked=0, Total=182 [2024-11-03 12:56:47,677 INFO L87 Difference]: Start difference. First operand 703 states and 1103 transitions. Second operand has 8 states, 8 states have (on average 9.375) internal successors, (75), 8 states have internal predecessors, (75), 2 states have call successors, (50), 1 states have call predecessors, (50), 1 states have return successors, (50), 2 states have call predecessors, (50), 2 states have call successors, (50)