/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-7.i -------------------------------------------------------------------------------- This is Ultimate 0.2.5-dev-b75d321-m [2024-11-03 12:54:22,386 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-03 12:54:22,439 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 12:54:22,442 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-03 12:54:22,443 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-03 12:54:22,458 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-03 12:54:22,459 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-03 12:54:22,459 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-03 12:54:22,459 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-03 12:54:22,460 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-03 12:54:22,460 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-03 12:54:22,460 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-03 12:54:22,461 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-03 12:54:22,461 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-03 12:54:22,461 INFO L153 SettingsManager]: * Use SBE=true [2024-11-03 12:54:22,462 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-03 12:54:22,462 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-03 12:54:22,462 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-03 12:54:22,462 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-03 12:54:22,463 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-03 12:54:22,463 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-03 12:54:22,463 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-03 12:54:22,464 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-03 12:54:22,464 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-03 12:54:22,464 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-03 12:54:22,464 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-03 12:54:22,464 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-03 12:54:22,465 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-03 12:54:22,465 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-03 12:54:22,465 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-03 12:54:22,465 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-03 12:54:22,465 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-03 12:54:22,466 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-03 12:54:22,466 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-03 12:54:22,466 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-03 12:54:22,466 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-03 12:54:22,467 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-03 12:54:22,467 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-03 12:54:22,467 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-11-03 12:54:22,467 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-03 12:54:22,467 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-03 12:54:22,468 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-03 12:54:22,468 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-03 12:54:22,468 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-03 12:54:22,469 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Allow undefined functions -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Command for external solver -> bitwuzla [2024-11-03 12:54:22,665 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-03 12:54:22,690 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-03 12:54:22,692 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-03 12:54:22,693 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-03 12:54:22,693 INFO L274 PluginConnector]: CDTParser initialized [2024-11-03 12:54:22,694 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount250_file-7.i [2024-11-03 12:54:24,044 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-03 12:54:24,220 INFO L384 CDTParser]: Found 1 translation units. [2024-11-03 12:54:24,220 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount250_file-7.i [2024-11-03 12:54:24,236 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a5d1bfb40/053ec2244d5d49a09f88dd25ee5d2ce7/FLAG6b9dd1d64 [2024-11-03 12:54:24,249 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a5d1bfb40/053ec2244d5d49a09f88dd25ee5d2ce7 [2024-11-03 12:54:24,251 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-03 12:54:24,253 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-11-03 12:54:24,254 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-03 12:54:24,254 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-03 12:54:24,259 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-03 12:54:24,259 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 12:54:24" (1/1) ... [2024-11-03 12:54:24,260 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@f5c46d2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:54:24, skipping insertion in model container [2024-11-03 12:54:24,260 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 12:54:24" (1/1) ... [2024-11-03 12:54:24,315 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-03 12:54:24,476 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-7.i[915,928] [2024-11-03 12:54:24,625 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-03 12:54:24,641 INFO L200 MainTranslator]: Completed pre-run [2024-11-03 12:54:24,650 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-7.i[915,928] [2024-11-03 12:54:24,701 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-03 12:54:24,721 INFO L204 MainTranslator]: Completed translation [2024-11-03 12:54:24,721 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:54:24 WrapperNode [2024-11-03 12:54:24,722 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-03 12:54:24,723 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-03 12:54:24,723 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-03 12:54:24,723 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-03 12:54:24,728 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:54:24" (1/1) ... [2024-11-03 12:54:24,753 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:54:24" (1/1) ... [2024-11-03 12:54:24,783 INFO L138 Inliner]: procedures = 27, calls = 71, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 364 [2024-11-03 12:54:24,783 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-03 12:54:24,784 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-03 12:54:24,784 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-03 12:54:24,784 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-03 12:54:24,793 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:54:24" (1/1) ... [2024-11-03 12:54:24,794 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:54:24" (1/1) ... [2024-11-03 12:54:24,799 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:54:24" (1/1) ... [2024-11-03 12:54:24,815 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 12:54:24,815 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:54:24" (1/1) ... [2024-11-03 12:54:24,816 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:54:24" (1/1) ... [2024-11-03 12:54:24,838 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:54:24" (1/1) ... [2024-11-03 12:54:24,845 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:54:24" (1/1) ... [2024-11-03 12:54:24,848 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:54:24" (1/1) ... [2024-11-03 12:54:24,851 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:54:24" (1/1) ... [2024-11-03 12:54:24,856 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-03 12:54:24,858 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-03 12:54:24,858 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-03 12:54:24,858 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-03 12:54:24,859 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:54:24" (1/1) ... [2024-11-03 12:54:24,863 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-03 12:54:24,873 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-03 12:54:24,890 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 12:54:24,893 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 12:54:24,921 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-03 12:54:24,921 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-03 12:54:24,921 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-03 12:54:24,921 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-03 12:54:24,921 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-03 12:54:24,921 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-03 12:54:25,033 INFO L238 CfgBuilder]: Building ICFG [2024-11-03 12:54:25,035 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-03 12:54:44,221 INFO L? ?]: Removed 39 outVars from TransFormulas that were not future-live. [2024-11-03 12:54:44,221 INFO L287 CfgBuilder]: Performing block encoding [2024-11-03 12:54:44,238 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-03 12:54:44,238 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-03 12:54:44,238 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 12:54:44 BoogieIcfgContainer [2024-11-03 12:54:44,238 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-03 12:54:44,241 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-03 12:54:44,241 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-03 12:54:44,244 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-03 12:54:44,244 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 12:54:24" (1/3) ... [2024-11-03 12:54:44,245 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@336ad91c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 12:54:44, skipping insertion in model container [2024-11-03 12:54:44,245 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:54:24" (2/3) ... [2024-11-03 12:54:44,245 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@336ad91c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 12:54:44, skipping insertion in model container [2024-11-03 12:54:44,245 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 12:54:44" (3/3) ... [2024-11-03 12:54:44,247 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount250_file-7.i [2024-11-03 12:54:44,259 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-03 12:54:44,259 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-03 12:54:44,318 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-03 12:54:44,324 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;@63626050, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-03 12:54:44,324 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-03 12:54:44,330 INFO L276 IsEmpty]: Start isEmpty. Operand has 156 states, 95 states have (on average 1.4842105263157894) internal successors, (141), 96 states have internal predecessors, (141), 58 states have call successors, (58), 1 states have call predecessors, (58), 1 states have return successors, (58), 58 states have call predecessors, (58), 58 states have call successors, (58) [2024-11-03 12:54:44,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 359 [2024-11-03 12:54:44,354 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 12:54:44,355 INFO L215 NwaCegarLoop]: trace histogram [58, 58, 58, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:54:44,356 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 12:54:44,359 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 12:54:44,360 INFO L85 PathProgramCache]: Analyzing trace with hash -344138152, now seen corresponding path program 1 times [2024-11-03 12:54:44,367 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 12:54:44,368 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1943774754] [2024-11-03 12:54:44,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 12:54:44,370 INFO L173 SolverBuilder]: Constructing external solver with command: bitwuzla [2024-11-03 12:54:44,371 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-03 12:54:44,373 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 12:54:44,377 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (2)] Waiting until timeout for monitored process [2024-11-03 12:54:44,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 12:54:44,583 INFO L255 TraceCheckSpWp]: Trace formula consists of 586 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-03 12:54:44,601 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 12:54:44,668 INFO L134 CoverageAnalysis]: Checked inductivity of 6612 backedges. 114 proven. 0 refuted. 0 times theorem prover too weak. 6498 trivial. 0 not checked. [2024-11-03 12:54:44,668 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 12:54:49,436 INFO L134 CoverageAnalysis]: Checked inductivity of 6612 backedges. 114 proven. 0 refuted. 0 times theorem prover too weak. 6498 trivial. 0 not checked. [2024-11-03 12:54:49,437 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 12:54:49,437 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1943774754] [2024-11-03 12:54:49,438 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [1943774754] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-03 12:54:49,438 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-03 12:54:49,438 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2024-11-03 12:54:49,439 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2093070844] [2024-11-03 12:54:49,440 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-03 12:54:49,443 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-03 12:54:49,443 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 12:54:49,464 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-03 12:54:49,465 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-03 12:54:49,467 INFO L87 Difference]: Start difference. First operand has 156 states, 95 states have (on average 1.4842105263157894) internal successors, (141), 96 states have internal predecessors, (141), 58 states have call successors, (58), 1 states have call predecessors, (58), 1 states have return successors, (58), 58 states have call predecessors, (58), 58 states have call successors, (58) Second operand has 2 states, 2 states have (on average 36.5) internal successors, (73), 2 states have internal predecessors, (73), 1 states have call successors, (58), 1 states have call predecessors, (58), 2 states have return successors, (58), 2 states have call predecessors, (58), 1 states have call successors, (58) [2024-11-03 12:54:49,511 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 12:54:49,511 INFO L93 Difference]: Finished difference Result 303 states and 562 transitions. [2024-11-03 12:54:49,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-03 12:54:49,514 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 36.5) internal successors, (73), 2 states have internal predecessors, (73), 1 states have call successors, (58), 1 states have call predecessors, (58), 2 states have return successors, (58), 2 states have call predecessors, (58), 1 states have call successors, (58) Word has length 358 [2024-11-03 12:54:49,514 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 12:54:49,521 INFO L225 Difference]: With dead ends: 303 [2024-11-03 12:54:49,521 INFO L226 Difference]: Without dead ends: 150 [2024-11-03 12:54:49,525 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 714 GetRequests, 714 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 12:54:49,528 INFO L432 NwaCegarLoop]: 245 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, 245 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 12:54:49,529 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 245 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-03 12:54:49,541 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150 states. [2024-11-03 12:54:49,570 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150 to 150. [2024-11-03 12:54:49,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 150 states, 90 states have (on average 1.4333333333333333) internal successors, (129), 90 states have internal predecessors, (129), 58 states have call successors, (58), 1 states have call predecessors, (58), 1 states have return successors, (58), 58 states have call predecessors, (58), 58 states have call successors, (58) [2024-11-03 12:54:49,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 245 transitions. [2024-11-03 12:54:49,575 INFO L78 Accepts]: Start accepts. Automaton has 150 states and 245 transitions. Word has length 358 [2024-11-03 12:54:49,575 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 12:54:49,575 INFO L471 AbstractCegarLoop]: Abstraction has 150 states and 245 transitions. [2024-11-03 12:54:49,576 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 36.5) internal successors, (73), 2 states have internal predecessors, (73), 1 states have call successors, (58), 1 states have call predecessors, (58), 2 states have return successors, (58), 2 states have call predecessors, (58), 1 states have call successors, (58) [2024-11-03 12:54:49,576 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 245 transitions. [2024-11-03 12:54:49,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 359 [2024-11-03 12:54:49,581 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 12:54:49,581 INFO L215 NwaCegarLoop]: trace histogram [58, 58, 58, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:54:49,584 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (2)] Ended with exit code 0 [2024-11-03 12:54:49,782 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-03 12:54:49,783 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 12:54:49,783 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 12:54:49,783 INFO L85 PathProgramCache]: Analyzing trace with hash 720512672, now seen corresponding path program 1 times [2024-11-03 12:54:49,783 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 12:54:49,784 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [471229432] [2024-11-03 12:54:49,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 12:54:49,784 INFO L173 SolverBuilder]: Constructing external solver with command: bitwuzla [2024-11-03 12:54:49,784 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-03 12:54:49,786 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 12:54:49,787 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (3)] Waiting until timeout for monitored process [2024-11-03 12:54:49,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 12:54:49,962 INFO L255 TraceCheckSpWp]: Trace formula consists of 586 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-03 12:54:49,968 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 12:54:52,242 INFO L134 CoverageAnalysis]: Checked inductivity of 6612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6612 trivial. 0 not checked. [2024-11-03 12:54:52,242 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 12:54:58,716 INFO L134 CoverageAnalysis]: Checked inductivity of 6612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6612 trivial. 0 not checked. [2024-11-03 12:54:58,717 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 12:54:58,717 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [471229432] [2024-11-03 12:54:58,717 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [471229432] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-03 12:54:58,717 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-03 12:54:58,717 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2024-11-03 12:54:58,717 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2120169207] [2024-11-03 12:54:58,717 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-03 12:54:58,719 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-03 12:54:58,719 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 12:54:58,720 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-03 12:54:58,720 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2024-11-03 12:54:58,721 INFO L87 Difference]: Start difference. First operand 150 states and 245 transitions. Second operand has 6 states, 6 states have (on average 15.666666666666666) internal successors, (94), 6 states have internal predecessors, (94), 1 states have call successors, (58), 1 states have call predecessors, (58), 1 states have return successors, (58), 1 states have call predecessors, (58), 1 states have call successors, (58) [2024-11-03 12:55:03,327 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.23s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-03 12:55:07,331 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-03 12:55:11,068 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.74s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-03 12:55:15,927 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.50s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-03 12:55:19,940 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-03 12:55:23,954 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-03 12:55:27,960 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-03 12:55:29,168 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 12:55:29,169 INFO L93 Difference]: Finished difference Result 435 states and 710 transitions. [2024-11-03 12:55:29,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-03 12:55:29,170 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 15.666666666666666) internal successors, (94), 6 states have internal predecessors, (94), 1 states have call successors, (58), 1 states have call predecessors, (58), 1 states have return successors, (58), 1 states have call predecessors, (58), 1 states have call successors, (58) Word has length 358 [2024-11-03 12:55:29,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 12:55:29,180 INFO L225 Difference]: With dead ends: 435 [2024-11-03 12:55:29,180 INFO L226 Difference]: Without dead ends: 288 [2024-11-03 12:55:29,181 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 714 GetRequests, 710 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2024-11-03 12:55:29,182 INFO L432 NwaCegarLoop]: 242 mSDtfsCounter, 403 mSDsluCounter, 449 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 124 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 29.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 403 SdHoareTripleChecker+Valid, 691 SdHoareTripleChecker+Invalid, 183 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 124 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 30.4s IncrementalHoareTripleChecker+Time [2024-11-03 12:55:29,182 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [403 Valid, 691 Invalid, 183 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [124 Valid, 53 Invalid, 6 Unknown, 0 Unchecked, 30.4s Time] [2024-11-03 12:55:29,186 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 288 states. [2024-11-03 12:55:29,238 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 288 to 274. [2024-11-03 12:55:29,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 274 states, 154 states have (on average 1.3831168831168832) internal successors, (213), 155 states have internal predecessors, (213), 116 states have call successors, (116), 3 states have call predecessors, (116), 3 states have return successors, (116), 115 states have call predecessors, (116), 116 states have call successors, (116) [2024-11-03 12:55:29,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 274 states to 274 states and 445 transitions. [2024-11-03 12:55:29,244 INFO L78 Accepts]: Start accepts. Automaton has 274 states and 445 transitions. Word has length 358 [2024-11-03 12:55:29,245 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 12:55:29,245 INFO L471 AbstractCegarLoop]: Abstraction has 274 states and 445 transitions. [2024-11-03 12:55:29,245 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.666666666666666) internal successors, (94), 6 states have internal predecessors, (94), 1 states have call successors, (58), 1 states have call predecessors, (58), 1 states have return successors, (58), 1 states have call predecessors, (58), 1 states have call successors, (58) [2024-11-03 12:55:29,245 INFO L276 IsEmpty]: Start isEmpty. Operand 274 states and 445 transitions. [2024-11-03 12:55:29,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 359 [2024-11-03 12:55:29,251 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 12:55:29,251 INFO L215 NwaCegarLoop]: trace histogram [58, 58, 58, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:55:29,261 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (3)] Forceful destruction successful, exit code 0 [2024-11-03 12:55:29,455 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-03 12:55:29,456 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 12:55:29,456 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 12:55:29,456 INFO L85 PathProgramCache]: Analyzing trace with hash -300555682, now seen corresponding path program 1 times [2024-11-03 12:55:29,456 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 12:55:29,457 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1685241706] [2024-11-03 12:55:29,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 12:55:29,457 INFO L173 SolverBuilder]: Constructing external solver with command: bitwuzla [2024-11-03 12:55:29,457 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-03 12:55:29,459 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 12:55:29,459 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (4)] Waiting until timeout for monitored process [2024-11-03 12:55:29,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 12:55:29,597 INFO L255 TraceCheckSpWp]: Trace formula consists of 584 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-03 12:55:29,603 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 12:55:32,729 INFO L134 CoverageAnalysis]: Checked inductivity of 6612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6612 trivial. 0 not checked. [2024-11-03 12:55:32,729 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 12:55:40,545 INFO L134 CoverageAnalysis]: Checked inductivity of 6612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6612 trivial. 0 not checked. [2024-11-03 12:55:40,545 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 12:55:40,545 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1685241706] [2024-11-03 12:55:40,546 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [1685241706] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-03 12:55:40,546 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-03 12:55:40,546 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2024-11-03 12:55:40,546 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1508374623] [2024-11-03 12:55:40,546 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-03 12:55:40,547 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-03 12:55:40,547 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 12:55:40,547 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-03 12:55:40,547 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2024-11-03 12:55:40,548 INFO L87 Difference]: Start difference. First operand 274 states and 445 transitions. Second operand has 6 states, 6 states have (on average 15.666666666666666) internal successors, (94), 6 states have internal predecessors, (94), 1 states have call successors, (58), 1 states have call predecessors, (58), 1 states have return successors, (58), 1 states have call predecessors, (58), 1 states have call successors, (58) [2024-11-03 12:55:45,187 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.25s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-03 12:55:49,193 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-03 12:55:53,196 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-03 12:55:58,169 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.56s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-03 12:56:02,185 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-03 12:56:06,193 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-03 12:56:10,200 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []