/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-20.i -------------------------------------------------------------------------------- This is Ultimate 0.2.5-dev-b75d321-m [2024-11-03 12:47:26,708 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-03 12:47:26,783 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 12:47:26,789 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-03 12:47:26,790 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-03 12:47:26,819 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-03 12:47:26,820 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-03 12:47:26,820 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-03 12:47:26,821 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-03 12:47:26,821 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-03 12:47:26,821 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-03 12:47:26,822 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-03 12:47:26,823 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-03 12:47:26,826 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-03 12:47:26,826 INFO L153 SettingsManager]: * Use SBE=true [2024-11-03 12:47:26,827 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-03 12:47:26,827 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-03 12:47:26,827 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-03 12:47:26,828 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-03 12:47:26,828 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-03 12:47:26,828 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-03 12:47:26,831 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-03 12:47:26,831 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-03 12:47:26,831 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-03 12:47:26,831 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-03 12:47:26,831 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-03 12:47:26,832 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-03 12:47:26,832 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-03 12:47:26,832 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-03 12:47:26,832 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-03 12:47:26,833 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-03 12:47:26,833 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-03 12:47:26,833 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-03 12:47:26,833 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-03 12:47:26,833 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-03 12:47:26,834 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-03 12:47:26,834 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-03 12:47:26,835 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-03 12:47:26,861 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-11-03 12:47:26,861 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-03 12:47:26,862 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-03 12:47:26,862 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-03 12:47:26,862 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-03 12:47:26,862 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-03 12:47:26,863 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Allow undefined functions -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Command for external solver -> bitwuzla [2024-11-03 12:47:27,099 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-03 12:47:27,124 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-03 12:47:27,128 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-03 12:47:27,129 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-03 12:47:27,129 INFO L274 PluginConnector]: CDTParser initialized [2024-11-03 12:47:27,130 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount250_file-20.i [2024-11-03 12:47:28,580 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-03 12:47:28,806 INFO L384 CDTParser]: Found 1 translation units. [2024-11-03 12:47:28,806 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount250_file-20.i [2024-11-03 12:47:28,819 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f6b02e3d3/e6eed59395a94e9e9778dc4de53137a0/FLAG463d15551 [2024-11-03 12:47:29,146 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f6b02e3d3/e6eed59395a94e9e9778dc4de53137a0 [2024-11-03 12:47:29,148 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-03 12:47:29,150 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-11-03 12:47:29,151 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-03 12:47:29,151 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-03 12:47:29,156 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-03 12:47:29,157 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 12:47:29" (1/1) ... [2024-11-03 12:47:29,158 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6974ca9a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:47:29, skipping insertion in model container [2024-11-03 12:47:29,158 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 12:47:29" (1/1) ... [2024-11-03 12:47:29,207 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-03 12:47:29,386 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-20.i[916,929] [2024-11-03 12:47:29,532 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-03 12:47:29,553 INFO L200 MainTranslator]: Completed pre-run [2024-11-03 12:47:29,564 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-20.i[916,929] [2024-11-03 12:47:29,637 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-03 12:47:29,660 INFO L204 MainTranslator]: Completed translation [2024-11-03 12:47:29,660 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:47:29 WrapperNode [2024-11-03 12:47:29,661 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-03 12:47:29,662 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-03 12:47:29,662 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-03 12:47:29,662 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-03 12:47:29,667 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:47:29" (1/1) ... [2024-11-03 12:47:29,684 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:47:29" (1/1) ... [2024-11-03 12:47:29,718 INFO L138 Inliner]: procedures = 27, calls = 62, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 360 [2024-11-03 12:47:29,719 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-03 12:47:29,720 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-03 12:47:29,720 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-03 12:47:29,720 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-03 12:47:29,732 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:47:29" (1/1) ... [2024-11-03 12:47:29,732 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:47:29" (1/1) ... [2024-11-03 12:47:29,739 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:47:29" (1/1) ... [2024-11-03 12:47:29,771 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 12:47:29,772 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:47:29" (1/1) ... [2024-11-03 12:47:29,776 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:47:29" (1/1) ... [2024-11-03 12:47:29,810 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:47:29" (1/1) ... [2024-11-03 12:47:29,817 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:47:29" (1/1) ... [2024-11-03 12:47:29,824 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:47:29" (1/1) ... [2024-11-03 12:47:29,833 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:47:29" (1/1) ... [2024-11-03 12:47:29,845 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-03 12:47:29,846 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-03 12:47:29,846 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-03 12:47:29,846 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-03 12:47:29,849 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:47:29" (1/1) ... [2024-11-03 12:47:29,855 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-03 12:47:29,866 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-03 12:47:29,882 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 12:47:29,885 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 12:47:29,912 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-03 12:47:29,912 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-03 12:47:29,912 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-03 12:47:29,913 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-03 12:47:29,913 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-03 12:47:29,913 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-03 12:47:30,029 INFO L238 CfgBuilder]: Building ICFG [2024-11-03 12:47:30,031 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-03 12:47:41,806 INFO L? ?]: Removed 46 outVars from TransFormulas that were not future-live. [2024-11-03 12:47:41,807 INFO L287 CfgBuilder]: Performing block encoding [2024-11-03 12:47:41,833 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-03 12:47:41,834 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-03 12:47:41,834 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 12:47:41 BoogieIcfgContainer [2024-11-03 12:47:41,834 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-03 12:47:41,839 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-03 12:47:41,840 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-03 12:47:41,843 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-03 12:47:41,843 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 12:47:29" (1/3) ... [2024-11-03 12:47:41,844 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4285bc30 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 12:47:41, skipping insertion in model container [2024-11-03 12:47:41,844 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:47:29" (2/3) ... [2024-11-03 12:47:41,844 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4285bc30 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 12:47:41, skipping insertion in model container [2024-11-03 12:47:41,844 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 12:47:41" (3/3) ... [2024-11-03 12:47:41,846 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount250_file-20.i [2024-11-03 12:47:41,862 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-03 12:47:41,862 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-03 12:47:41,941 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-03 12:47:41,947 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;@543840e1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-03 12:47:41,947 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-03 12:47:41,953 INFO L276 IsEmpty]: Start isEmpty. Operand has 155 states, 103 states have (on average 1.4854368932038835) internal successors, (153), 104 states have internal predecessors, (153), 49 states have call successors, (49), 1 states have call predecessors, (49), 1 states have return successors, (49), 49 states have call predecessors, (49), 49 states have call successors, (49) [2024-11-03 12:47:41,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 319 [2024-11-03 12:47:41,980 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 12:47:41,982 INFO L215 NwaCegarLoop]: trace histogram [49, 49, 49, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:47:41,983 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 12:47:41,988 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 12:47:41,989 INFO L85 PathProgramCache]: Analyzing trace with hash -873228041, now seen corresponding path program 1 times [2024-11-03 12:47:41,998 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 12:47:41,999 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1392951697] [2024-11-03 12:47:41,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 12:47:42,002 INFO L173 SolverBuilder]: Constructing external solver with command: bitwuzla [2024-11-03 12:47:42,002 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-03 12:47:42,005 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 12:47:42,007 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (2)] Waiting until timeout for monitored process [2024-11-03 12:47:42,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 12:47:42,280 INFO L255 TraceCheckSpWp]: Trace formula consists of 531 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-03 12:47:42,294 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 12:47:42,375 INFO L134 CoverageAnalysis]: Checked inductivity of 4704 backedges. 96 proven. 0 refuted. 0 times theorem prover too weak. 4608 trivial. 0 not checked. [2024-11-03 12:47:42,375 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 12:47:44,745 INFO L134 CoverageAnalysis]: Checked inductivity of 4704 backedges. 96 proven. 0 refuted. 0 times theorem prover too weak. 4608 trivial. 0 not checked. [2024-11-03 12:47:44,746 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 12:47:44,746 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1392951697] [2024-11-03 12:47:44,746 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [1392951697] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-03 12:47:44,747 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-03 12:47:44,747 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2024-11-03 12:47:44,749 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [507434687] [2024-11-03 12:47:44,749 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-03 12:47:44,755 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-03 12:47:44,755 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 12:47:44,777 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-03 12:47:44,778 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-03 12:47:44,780 INFO L87 Difference]: Start difference. First operand has 155 states, 103 states have (on average 1.4854368932038835) internal successors, (153), 104 states have internal predecessors, (153), 49 states have call successors, (49), 1 states have call predecessors, (49), 1 states have return successors, (49), 49 states have call predecessors, (49), 49 states have call successors, (49) Second operand has 2 states, 2 states have (on average 39.0) internal successors, (78), 2 states have internal predecessors, (78), 1 states have call successors, (49), 1 states have call predecessors, (49), 2 states have return successors, (49), 2 states have call predecessors, (49), 1 states have call successors, (49) [2024-11-03 12:47:44,824 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 12:47:44,826 INFO L93 Difference]: Finished difference Result 302 states and 543 transitions. [2024-11-03 12:47:44,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-03 12:47:44,829 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 39.0) internal successors, (78), 2 states have internal predecessors, (78), 1 states have call successors, (49), 1 states have call predecessors, (49), 2 states have return successors, (49), 2 states have call predecessors, (49), 1 states have call successors, (49) Word has length 318 [2024-11-03 12:47:44,829 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 12:47:44,837 INFO L225 Difference]: With dead ends: 302 [2024-11-03 12:47:44,837 INFO L226 Difference]: Without dead ends: 150 [2024-11-03 12:47:44,842 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 634 GetRequests, 634 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 12:47:44,848 INFO L432 NwaCegarLoop]: 241 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, 241 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 12:47:44,850 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 241 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-03 12:47:44,865 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150 states. [2024-11-03 12:47:44,904 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150 to 150. [2024-11-03 12:47:44,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 150 states, 99 states have (on average 1.4444444444444444) internal successors, (143), 99 states have internal predecessors, (143), 49 states have call successors, (49), 1 states have call predecessors, (49), 1 states have return successors, (49), 49 states have call predecessors, (49), 49 states have call successors, (49) [2024-11-03 12:47:44,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 241 transitions. [2024-11-03 12:47:44,911 INFO L78 Accepts]: Start accepts. Automaton has 150 states and 241 transitions. Word has length 318 [2024-11-03 12:47:44,911 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 12:47:44,911 INFO L471 AbstractCegarLoop]: Abstraction has 150 states and 241 transitions. [2024-11-03 12:47:44,912 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 39.0) internal successors, (78), 2 states have internal predecessors, (78), 1 states have call successors, (49), 1 states have call predecessors, (49), 2 states have return successors, (49), 2 states have call predecessors, (49), 1 states have call successors, (49) [2024-11-03 12:47:44,912 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 241 transitions. [2024-11-03 12:47:44,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 319 [2024-11-03 12:47:44,919 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 12:47:44,920 INFO L215 NwaCegarLoop]: trace histogram [49, 49, 49, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:47:44,926 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (2)] Ended with exit code 0 [2024-11-03 12:47:45,120 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-03 12:47:45,121 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 12:47:45,122 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 12:47:45,122 INFO L85 PathProgramCache]: Analyzing trace with hash -987053719, now seen corresponding path program 1 times [2024-11-03 12:47:45,122 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 12:47:45,123 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1816787348] [2024-11-03 12:47:45,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 12:47:45,123 INFO L173 SolverBuilder]: Constructing external solver with command: bitwuzla [2024-11-03 12:47:45,124 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-03 12:47:45,126 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 12:47:45,128 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (3)] Waiting until timeout for monitored process [2024-11-03 12:47:45,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 12:47:45,344 INFO L255 TraceCheckSpWp]: Trace formula consists of 531 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-03 12:47:45,357 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 12:47:45,804 INFO L134 CoverageAnalysis]: Checked inductivity of 4704 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4704 trivial. 0 not checked. [2024-11-03 12:47:45,805 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 12:47:48,292 INFO L134 CoverageAnalysis]: Checked inductivity of 4704 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4704 trivial. 0 not checked. [2024-11-03 12:47:48,292 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 12:47:48,293 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1816787348] [2024-11-03 12:47:48,293 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [1816787348] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-03 12:47:48,293 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-03 12:47:48,293 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2024-11-03 12:47:48,293 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1633382614] [2024-11-03 12:47:48,294 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-03 12:47:48,295 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-03 12:47:48,296 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 12:47:48,297 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-03 12:47:48,297 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-03 12:47:48,297 INFO L87 Difference]: Start difference. First operand 150 states and 241 transitions. Second operand has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 1 states have call successors, (49), 1 states have call predecessors, (49), 1 states have return successors, (49), 1 states have call predecessors, (49), 1 states have call successors, (49) [2024-11-03 12:47:52,843 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.29s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-03 12:47:56,858 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 12:47:56,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 12:47:56,864 INFO L93 Difference]: Finished difference Result 364 states and 586 transitions. [2024-11-03 12:47:56,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-03 12:47:56,963 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 1 states have call successors, (49), 1 states have call predecessors, (49), 1 states have return successors, (49), 1 states have call predecessors, (49), 1 states have call successors, (49) Word has length 318 [2024-11-03 12:47:56,965 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 12:47:56,968 INFO L225 Difference]: With dead ends: 364 [2024-11-03 12:47:56,968 INFO L226 Difference]: Without dead ends: 217 [2024-11-03 12:47:56,969 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 634 GetRequests, 633 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-03 12:47:56,971 INFO L432 NwaCegarLoop]: 327 mSDtfsCounter, 95 mSDsluCounter, 220 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 6 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 95 SdHoareTripleChecker+Valid, 547 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.5s IncrementalHoareTripleChecker+Time [2024-11-03 12:47:56,971 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [95 Valid, 547 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 14 Invalid, 2 Unknown, 0 Unchecked, 8.5s Time] [2024-11-03 12:47:56,972 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 217 states. [2024-11-03 12:47:57,006 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 217 to 214. [2024-11-03 12:47:57,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 214 states, 160 states have (on average 1.50625) internal successors, (241), 161 states have internal predecessors, (241), 51 states have call successors, (51), 2 states have call predecessors, (51), 2 states have return successors, (51), 50 states have call predecessors, (51), 51 states have call successors, (51) [2024-11-03 12:47:57,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 214 states to 214 states and 343 transitions. [2024-11-03 12:47:57,013 INFO L78 Accepts]: Start accepts. Automaton has 214 states and 343 transitions. Word has length 318 [2024-11-03 12:47:57,017 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 12:47:57,017 INFO L471 AbstractCegarLoop]: Abstraction has 214 states and 343 transitions. [2024-11-03 12:47:57,017 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 1 states have call successors, (49), 1 states have call predecessors, (49), 1 states have return successors, (49), 1 states have call predecessors, (49), 1 states have call successors, (49) [2024-11-03 12:47:57,018 INFO L276 IsEmpty]: Start isEmpty. Operand 214 states and 343 transitions. [2024-11-03 12:47:57,025 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 319 [2024-11-03 12:47:57,026 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 12:47:57,026 INFO L215 NwaCegarLoop]: trace histogram [49, 49, 49, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:47:57,030 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (3)] Ended with exit code 0 [2024-11-03 12:47:57,226 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-03 12:47:57,227 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 12:47:57,228 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 12:47:57,228 INFO L85 PathProgramCache]: Analyzing trace with hash -2016413017, now seen corresponding path program 1 times [2024-11-03 12:47:57,228 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 12:47:57,228 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [117795311] [2024-11-03 12:47:57,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 12:47:57,229 INFO L173 SolverBuilder]: Constructing external solver with command: bitwuzla [2024-11-03 12:47:57,229 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-03 12:47:57,231 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 12:47:57,233 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (4)] Waiting until timeout for monitored process [2024-11-03 12:47:57,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 12:47:57,429 INFO L255 TraceCheckSpWp]: Trace formula consists of 530 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-03 12:47:57,439 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 12:48:14,099 INFO L134 CoverageAnalysis]: Checked inductivity of 4704 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4704 trivial. 0 not checked. [2024-11-03 12:48:14,099 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 12:48:19,809 INFO L134 CoverageAnalysis]: Checked inductivity of 4704 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4704 trivial. 0 not checked. [2024-11-03 12:48:19,810 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 12:48:19,810 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [117795311] [2024-11-03 12:48:19,810 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [117795311] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-03 12:48:19,810 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-03 12:48:19,810 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 6 [2024-11-03 12:48:19,810 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [655180981] [2024-11-03 12:48:19,811 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-03 12:48:19,812 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-03 12:48:19,812 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 12:48:19,813 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-03 12:48:19,813 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-03 12:48:19,814 INFO L87 Difference]: Start difference. First operand 214 states and 343 transitions. Second operand has 6 states, 6 states have (on average 21.833333333333332) internal successors, (131), 6 states have internal predecessors, (131), 2 states have call successors, (98), 2 states have call predecessors, (98), 2 states have return successors, (98), 2 states have call predecessors, (98), 2 states have call successors, (98) [2024-11-03 12:48:28,176 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.29s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-03 12:48:32,181 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-03 12:48:36,185 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-03 12:48:40,195 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-03 12:48:44,208 WARN L539 Checker$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 12:48:48,216 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-03 12:48:52,224 WARN L539 Checker$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 12:48:52,245 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 12:48:52,246 INFO L93 Difference]: Finished difference Result 634 states and 1021 transitions. [2024-11-03 12:48:52,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-03 12:48:52,369 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 21.833333333333332) internal successors, (131), 6 states have internal predecessors, (131), 2 states have call successors, (98), 2 states have call predecessors, (98), 2 states have return successors, (98), 2 states have call predecessors, (98), 2 states have call successors, (98) Word has length 318 [2024-11-03 12:48:52,370 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 12:48:52,375 INFO L225 Difference]: With dead ends: 634 [2024-11-03 12:48:52,375 INFO L226 Difference]: Without dead ends: 423 [2024-11-03 12:48:52,377 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 635 GetRequests, 630 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-03 12:48:52,378 INFO L432 NwaCegarLoop]: 297 mSDtfsCounter, 87 mSDsluCounter, 830 mSDsCounter, 0 mSdLazyCounter, 260 mSolverCounterSat, 0 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 32.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 87 SdHoareTripleChecker+Valid, 1127 SdHoareTripleChecker+Invalid, 267 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 260 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 32.2s IncrementalHoareTripleChecker+Time [2024-11-03 12:48:52,378 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [87 Valid, 1127 Invalid, 267 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 260 Invalid, 7 Unknown, 0 Unchecked, 32.2s Time] [2024-11-03 12:48:52,379 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 423 states. [2024-11-03 12:48:52,440 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 423 to 421. [2024-11-03 12:48:52,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 421 states, 314 states have (on average 1.5095541401273886) internal successors, (474), 316 states have internal predecessors, (474), 102 states have call successors, (102), 4 states have call predecessors, (102), 4 states have return successors, (102), 100 states have call predecessors, (102), 102 states have call successors, (102) [2024-11-03 12:48:52,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 421 states to 421 states and 678 transitions. [2024-11-03 12:48:52,445 INFO L78 Accepts]: Start accepts. Automaton has 421 states and 678 transitions. Word has length 318 [2024-11-03 12:48:52,445 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 12:48:52,446 INFO L471 AbstractCegarLoop]: Abstraction has 421 states and 678 transitions. [2024-11-03 12:48:52,446 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 21.833333333333332) internal successors, (131), 6 states have internal predecessors, (131), 2 states have call successors, (98), 2 states have call predecessors, (98), 2 states have return successors, (98), 2 states have call predecessors, (98), 2 states have call successors, (98) [2024-11-03 12:48:52,446 INFO L276 IsEmpty]: Start isEmpty. Operand 421 states and 678 transitions. [2024-11-03 12:48:52,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 320 [2024-11-03 12:48:52,448 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 12:48:52,448 INFO L215 NwaCegarLoop]: trace histogram [49, 49, 49, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:48:52,453 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (4)] Forceful destruction successful, exit code 0 [2024-11-03 12:48:52,649 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-03 12:48:52,650 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 12:48:52,650 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 12:48:52,651 INFO L85 PathProgramCache]: Analyzing trace with hash -1089751271, now seen corresponding path program 1 times [2024-11-03 12:48:52,651 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 12:48:52,651 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1284572551] [2024-11-03 12:48:52,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 12:48:52,651 INFO L173 SolverBuilder]: Constructing external solver with command: bitwuzla [2024-11-03 12:48:52,651 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-03 12:48:52,653 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 12:48:52,654 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (5)] Waiting until timeout for monitored process [2024-11-03 12:48:52,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 12:48:52,792 INFO L255 TraceCheckSpWp]: Trace formula consists of 531 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-03 12:48:52,797 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 12:48:53,902 INFO L134 CoverageAnalysis]: Checked inductivity of 4704 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4704 trivial. 0 not checked. [2024-11-03 12:48:53,902 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 12:48:57,499 INFO L134 CoverageAnalysis]: Checked inductivity of 4704 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4704 trivial. 0 not checked. [2024-11-03 12:48:57,500 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 12:48:57,500 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1284572551] [2024-11-03 12:48:57,500 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [1284572551] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-03 12:48:57,500 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-03 12:48:57,500 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 6 [2024-11-03 12:48:57,500 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [594826310] [2024-11-03 12:48:57,501 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-03 12:48:57,505 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-03 12:48:57,505 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 12:48:57,506 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-03 12:48:57,506 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-03 12:48:57,506 INFO L87 Difference]: Start difference. First operand 421 states and 678 transitions. Second operand has 6 states, 6 states have (on average 13.166666666666666) internal successors, (79), 6 states have internal predecessors, (79), 1 states have call successors, (49), 1 states have call predecessors, (49), 1 states have return successors, (49), 1 states have call predecessors, (49), 1 states have call successors, (49) [2024-11-03 12:49:03,806 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.25s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []