/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_amount100_file-22.i -------------------------------------------------------------------------------- This is Ultimate 0.2.5-dev-b75d321-m [2024-11-03 12:29:47,197 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-03 12:29:47,261 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 12:29:47,267 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-03 12:29:47,268 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-03 12:29:47,299 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-03 12:29:47,299 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-03 12:29:47,300 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-03 12:29:47,302 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-03 12:29:47,304 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-03 12:29:47,304 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-03 12:29:47,304 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-03 12:29:47,305 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-03 12:29:47,305 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-03 12:29:47,305 INFO L153 SettingsManager]: * Use SBE=true [2024-11-03 12:29:47,306 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-03 12:29:47,306 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-03 12:29:47,309 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-03 12:29:47,309 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-03 12:29:47,310 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-03 12:29:47,310 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-03 12:29:47,310 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-03 12:29:47,311 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-03 12:29:47,311 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-03 12:29:47,311 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-03 12:29:47,311 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-03 12:29:47,311 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-03 12:29:47,311 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-03 12:29:47,312 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-03 12:29:47,312 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-03 12:29:47,312 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-03 12:29:47,312 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-03 12:29:47,313 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-03 12:29:47,313 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-03 12:29:47,313 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-03 12:29:47,313 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-03 12:29:47,313 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-03 12:29:47,314 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-03 12:29:47,314 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-11-03 12:29:47,314 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-03 12:29:47,315 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-03 12:29:47,315 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-03 12:29:47,315 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-03 12:29:47,315 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-03 12:29:47,316 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Allow undefined functions -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Command for external solver -> bitwuzla [2024-11-03 12:29:47,563 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-03 12:29:47,590 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-03 12:29:47,592 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-03 12:29:47,593 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-03 12:29:47,594 INFO L274 PluginConnector]: CDTParser initialized [2024-11-03 12:29:47,595 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount100_file-22.i [2024-11-03 12:29:49,096 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-03 12:29:49,354 INFO L384 CDTParser]: Found 1 translation units. [2024-11-03 12:29:49,355 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount100_file-22.i [2024-11-03 12:29:49,367 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4dbc1154f/38d5121ab5144ae79fbcc39f002ae6c7/FLAG2c8551938 [2024-11-03 12:29:49,688 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4dbc1154f/38d5121ab5144ae79fbcc39f002ae6c7 [2024-11-03 12:29:49,691 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-03 12:29:49,693 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-11-03 12:29:49,694 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-03 12:29:49,694 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-03 12:29:49,700 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-03 12:29:49,701 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 12:29:49" (1/1) ... [2024-11-03 12:29:49,702 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@12bca021 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:29:49, skipping insertion in model container [2024-11-03 12:29:49,702 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 12:29:49" (1/1) ... [2024-11-03 12:29:49,736 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-03 12:29:49,897 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_amount100_file-22.i[916,929] [2024-11-03 12:29:50,008 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-03 12:29:50,028 INFO L200 MainTranslator]: Completed pre-run [2024-11-03 12:29:50,039 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_amount100_file-22.i[916,929] [2024-11-03 12:29:50,090 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-03 12:29:50,112 INFO L204 MainTranslator]: Completed translation [2024-11-03 12:29:50,113 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:29:50 WrapperNode [2024-11-03 12:29:50,113 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-03 12:29:50,114 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-03 12:29:50,114 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-03 12:29:50,115 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-03 12:29:50,123 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:29:50" (1/1) ... [2024-11-03 12:29:50,136 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:29:50" (1/1) ... [2024-11-03 12:29:50,165 INFO L138 Inliner]: procedures = 27, calls = 44, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 211 [2024-11-03 12:29:50,166 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-03 12:29:50,167 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-03 12:29:50,167 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-03 12:29:50,167 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-03 12:29:50,177 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:29:50" (1/1) ... [2024-11-03 12:29:50,177 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:29:50" (1/1) ... [2024-11-03 12:29:50,182 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:29:50" (1/1) ... [2024-11-03 12:29:50,197 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 12:29:50,198 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:29:50" (1/1) ... [2024-11-03 12:29:50,198 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:29:50" (1/1) ... [2024-11-03 12:29:50,209 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:29:50" (1/1) ... [2024-11-03 12:29:50,215 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:29:50" (1/1) ... [2024-11-03 12:29:50,222 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:29:50" (1/1) ... [2024-11-03 12:29:50,225 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:29:50" (1/1) ... [2024-11-03 12:29:50,232 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-03 12:29:50,237 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-03 12:29:50,238 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-03 12:29:50,238 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-03 12:29:50,239 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:29:50" (1/1) ... [2024-11-03 12:29:50,247 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-03 12:29:50,259 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-03 12:29:50,276 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 12:29:50,282 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 12:29:50,307 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-03 12:29:50,307 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-03 12:29:50,307 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-03 12:29:50,307 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-03 12:29:50,307 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-03 12:29:50,307 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-03 12:29:50,418 INFO L238 CfgBuilder]: Building ICFG [2024-11-03 12:29:50,420 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-03 12:29:51,549 INFO L? ?]: Removed 20 outVars from TransFormulas that were not future-live. [2024-11-03 12:29:51,549 INFO L287 CfgBuilder]: Performing block encoding [2024-11-03 12:29:51,563 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-03 12:29:51,564 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-03 12:29:51,564 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 12:29:51 BoogieIcfgContainer [2024-11-03 12:29:51,564 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-03 12:29:51,566 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-03 12:29:51,566 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-03 12:29:51,569 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-03 12:29:51,570 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 12:29:49" (1/3) ... [2024-11-03 12:29:51,570 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ad69d9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 12:29:51, skipping insertion in model container [2024-11-03 12:29:51,570 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:29:50" (2/3) ... [2024-11-03 12:29:51,571 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ad69d9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 12:29:51, skipping insertion in model container [2024-11-03 12:29:51,571 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 12:29:51" (3/3) ... [2024-11-03 12:29:51,572 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount100_file-22.i [2024-11-03 12:29:51,588 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-03 12:29:51,588 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-03 12:29:51,703 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-03 12:29:51,708 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;@255902ea, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-03 12:29:51,708 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-03 12:29:51,712 INFO L276 IsEmpty]: Start isEmpty. Operand has 88 states, 54 states have (on average 1.4074074074074074) internal successors, (76), 55 states have internal predecessors, (76), 31 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 31 states have call predecessors, (31), 31 states have call successors, (31) [2024-11-03 12:29:51,726 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2024-11-03 12:29:51,726 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 12:29:51,727 INFO L215 NwaCegarLoop]: trace histogram [31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:29:51,728 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 12:29:51,733 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 12:29:51,733 INFO L85 PathProgramCache]: Analyzing trace with hash 1843546310, now seen corresponding path program 1 times [2024-11-03 12:29:51,743 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 12:29:51,744 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [433778407] [2024-11-03 12:29:51,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 12:29:51,747 INFO L173 SolverBuilder]: Constructing external solver with command: bitwuzla [2024-11-03 12:29:51,747 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-03 12:29:51,751 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 12:29:51,753 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (2)] Waiting until timeout for monitored process [2024-11-03 12:29:51,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 12:29:51,967 INFO L255 TraceCheckSpWp]: Trace formula consists of 332 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-03 12:29:51,987 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 12:29:52,041 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 60 proven. 0 refuted. 0 times theorem prover too weak. 1800 trivial. 0 not checked. [2024-11-03 12:29:52,041 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 12:29:52,288 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 60 proven. 0 refuted. 0 times theorem prover too weak. 1800 trivial. 0 not checked. [2024-11-03 12:29:52,289 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 12:29:52,292 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [433778407] [2024-11-03 12:29:52,292 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [433778407] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-03 12:29:52,292 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-03 12:29:52,293 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2024-11-03 12:29:52,294 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1296093350] [2024-11-03 12:29:52,296 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-03 12:29:52,303 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-03 12:29:52,303 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 12:29:52,328 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-03 12:29:52,329 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-03 12:29:52,332 INFO L87 Difference]: Start difference. First operand has 88 states, 54 states have (on average 1.4074074074074074) internal successors, (76), 55 states have internal predecessors, (76), 31 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 31 states have call predecessors, (31), 31 states have call successors, (31) Second operand has 2 states, 2 states have (on average 22.0) internal successors, (44), 2 states have internal predecessors, (44), 1 states have call successors, (31), 1 states have call predecessors, (31), 2 states have return successors, (31), 2 states have call predecessors, (31), 1 states have call successors, (31) [2024-11-03 12:29:52,377 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 12:29:52,378 INFO L93 Difference]: Finished difference Result 169 states and 301 transitions. [2024-11-03 12:29:52,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-03 12:29:52,381 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 22.0) internal successors, (44), 2 states have internal predecessors, (44), 1 states have call successors, (31), 1 states have call predecessors, (31), 2 states have return successors, (31), 2 states have call predecessors, (31), 1 states have call successors, (31) Word has length 194 [2024-11-03 12:29:52,381 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 12:29:52,389 INFO L225 Difference]: With dead ends: 169 [2024-11-03 12:29:52,389 INFO L226 Difference]: Without dead ends: 84 [2024-11-03 12:29:52,393 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 386 GetRequests, 386 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 12:29:52,396 INFO L432 NwaCegarLoop]: 131 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, 131 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 12:29:52,397 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 131 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-03 12:29:52,411 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2024-11-03 12:29:52,431 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 84. [2024-11-03 12:29:52,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 84 states, 51 states have (on average 1.3529411764705883) internal successors, (69), 51 states have internal predecessors, (69), 31 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 31 states have call predecessors, (31), 31 states have call successors, (31) [2024-11-03 12:29:52,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 131 transitions. [2024-11-03 12:29:52,438 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 131 transitions. Word has length 194 [2024-11-03 12:29:52,438 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 12:29:52,438 INFO L471 AbstractCegarLoop]: Abstraction has 84 states and 131 transitions. [2024-11-03 12:29:52,439 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 22.0) internal successors, (44), 2 states have internal predecessors, (44), 1 states have call successors, (31), 1 states have call predecessors, (31), 2 states have return successors, (31), 2 states have call predecessors, (31), 1 states have call successors, (31) [2024-11-03 12:29:52,439 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 131 transitions. [2024-11-03 12:29:52,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2024-11-03 12:29:52,443 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 12:29:52,444 INFO L215 NwaCegarLoop]: trace histogram [31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:29:52,448 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (2)] Forceful destruction successful, exit code 0 [2024-11-03 12:29:52,646 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-03 12:29:52,646 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 12:29:52,647 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 12:29:52,647 INFO L85 PathProgramCache]: Analyzing trace with hash -850663032, now seen corresponding path program 1 times [2024-11-03 12:29:52,648 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 12:29:52,648 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [10996418] [2024-11-03 12:29:52,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 12:29:52,648 INFO L173 SolverBuilder]: Constructing external solver with command: bitwuzla [2024-11-03 12:29:52,648 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-03 12:29:52,651 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 12:29:52,653 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (3)] Waiting until timeout for monitored process [2024-11-03 12:29:52,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 12:29:52,803 INFO L255 TraceCheckSpWp]: Trace formula consists of 332 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-03 12:29:52,819 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 12:29:55,081 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2024-11-03 12:29:55,081 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 12:29:55,613 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2024-11-03 12:29:55,614 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 12:29:55,614 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [10996418] [2024-11-03 12:29:55,614 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [10996418] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-03 12:29:55,614 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-03 12:29:55,615 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 5] imperfect sequences [] total 8 [2024-11-03 12:29:55,615 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1281380481] [2024-11-03 12:29:55,615 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-03 12:29:55,619 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-03 12:29:55,619 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 12:29:55,620 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-03 12:29:55,620 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-11-03 12:29:55,622 INFO L87 Difference]: Start difference. First operand 84 states and 131 transitions. Second operand has 8 states, 8 states have (on average 8.625) internal successors, (69), 8 states have internal predecessors, (69), 2 states have call successors, (62), 2 states have call predecessors, (62), 2 states have return successors, (62), 2 states have call predecessors, (62), 2 states have call successors, (62) [2024-11-03 12:29:58,460 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 12:29:58,461 INFO L93 Difference]: Finished difference Result 372 states and 582 transitions. [2024-11-03 12:29:58,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-03 12:29:58,478 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.625) internal successors, (69), 8 states have internal predecessors, (69), 2 states have call successors, (62), 2 states have call predecessors, (62), 2 states have return successors, (62), 2 states have call predecessors, (62), 2 states have call successors, (62) Word has length 194 [2024-11-03 12:29:58,480 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 12:29:58,484 INFO L225 Difference]: With dead ends: 372 [2024-11-03 12:29:58,485 INFO L226 Difference]: Without dead ends: 291 [2024-11-03 12:29:58,488 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 393 GetRequests, 382 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=52, Invalid=104, Unknown=0, NotChecked=0, Total=156 [2024-11-03 12:29:58,489 INFO L432 NwaCegarLoop]: 130 mSDtfsCounter, 354 mSDsluCounter, 484 mSDsCounter, 0 mSdLazyCounter, 333 mSolverCounterSat, 226 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 354 SdHoareTripleChecker+Valid, 614 SdHoareTripleChecker+Invalid, 559 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 226 IncrementalHoareTripleChecker+Valid, 333 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2024-11-03 12:29:58,490 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [354 Valid, 614 Invalid, 559 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [226 Valid, 333 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2024-11-03 12:29:58,491 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 291 states. [2024-11-03 12:29:58,541 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 291 to 224. [2024-11-03 12:29:58,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 224 states, 127 states have (on average 1.31496062992126) internal successors, (167), 127 states have internal predecessors, (167), 93 states have call successors, (93), 3 states have call predecessors, (93), 3 states have return successors, (93), 93 states have call predecessors, (93), 93 states have call successors, (93) [2024-11-03 12:29:58,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 224 states to 224 states and 353 transitions. [2024-11-03 12:29:58,545 INFO L78 Accepts]: Start accepts. Automaton has 224 states and 353 transitions. Word has length 194 [2024-11-03 12:29:58,546 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 12:29:58,546 INFO L471 AbstractCegarLoop]: Abstraction has 224 states and 353 transitions. [2024-11-03 12:29:58,547 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.625) internal successors, (69), 8 states have internal predecessors, (69), 2 states have call successors, (62), 2 states have call predecessors, (62), 2 states have return successors, (62), 2 states have call predecessors, (62), 2 states have call successors, (62) [2024-11-03 12:29:58,547 INFO L276 IsEmpty]: Start isEmpty. Operand 224 states and 353 transitions. [2024-11-03 12:29:58,549 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2024-11-03 12:29:58,550 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 12:29:58,550 INFO L215 NwaCegarLoop]: trace histogram [31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:29:58,553 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (3)] Forceful destruction successful, exit code 0 [2024-11-03 12:29:58,750 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-03 12:29:58,751 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 12:29:58,752 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 12:29:58,752 INFO L85 PathProgramCache]: Analyzing trace with hash -1871731386, now seen corresponding path program 1 times [2024-11-03 12:29:58,752 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 12:29:58,752 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1409009159] [2024-11-03 12:29:58,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 12:29:58,753 INFO L173 SolverBuilder]: Constructing external solver with command: bitwuzla [2024-11-03 12:29:58,753 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-03 12:29:58,754 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 12:29:58,755 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (4)] Waiting until timeout for monitored process [2024-11-03 12:29:58,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 12:29:58,847 INFO L255 TraceCheckSpWp]: Trace formula consists of 331 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-03 12:29:58,855 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 12:29:59,933 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2024-11-03 12:29:59,934 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 12:30:03,430 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2024-11-03 12:30:03,431 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 12:30:03,431 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1409009159] [2024-11-03 12:30:03,431 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [1409009159] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-03 12:30:03,432 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-03 12:30:03,432 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 6 [2024-11-03 12:30:03,432 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [515292836] [2024-11-03 12:30:03,432 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-03 12:30:03,433 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-03 12:30:03,433 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 12:30:03,434 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-03 12:30:03,434 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-03 12:30:03,434 INFO L87 Difference]: Start difference. First operand 224 states and 353 transitions. Second operand has 6 states, 6 states have (on average 11.666666666666666) internal successors, (70), 6 states have internal predecessors, (70), 2 states have call successors, (62), 2 states have call predecessors, (62), 2 states have return successors, (62), 2 states have call predecessors, (62), 2 states have call successors, (62) [2024-11-03 12:30:06,245 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 12:30:06,246 INFO L93 Difference]: Finished difference Result 443 states and 696 transitions. [2024-11-03 12:30:06,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-03 12:30:06,261 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.666666666666666) internal successors, (70), 6 states have internal predecessors, (70), 2 states have call successors, (62), 2 states have call predecessors, (62), 2 states have return successors, (62), 2 states have call predecessors, (62), 2 states have call successors, (62) Word has length 194 [2024-11-03 12:30:06,262 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 12:30:06,266 INFO L225 Difference]: With dead ends: 443 [2024-11-03 12:30:06,266 INFO L226 Difference]: Without dead ends: 282 [2024-11-03 12:30:06,268 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 388 GetRequests, 383 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-03 12:30:06,269 INFO L432 NwaCegarLoop]: 124 mSDtfsCounter, 108 mSDsluCounter, 506 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 630 SdHoareTripleChecker+Invalid, 106 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2024-11-03 12:30:06,270 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [108 Valid, 630 Invalid, 106 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2024-11-03 12:30:06,272 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 282 states. [2024-11-03 12:30:06,317 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 282 to 221. [2024-11-03 12:30:06,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 221 states, 124 states have (on average 1.2983870967741935) internal successors, (161), 124 states have internal predecessors, (161), 93 states have call successors, (93), 3 states have call predecessors, (93), 3 states have return successors, (93), 93 states have call predecessors, (93), 93 states have call successors, (93) [2024-11-03 12:30:06,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 221 states to 221 states and 347 transitions. [2024-11-03 12:30:06,320 INFO L78 Accepts]: Start accepts. Automaton has 221 states and 347 transitions. Word has length 194 [2024-11-03 12:30:06,321 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 12:30:06,321 INFO L471 AbstractCegarLoop]: Abstraction has 221 states and 347 transitions. [2024-11-03 12:30:06,322 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.666666666666666) internal successors, (70), 6 states have internal predecessors, (70), 2 states have call successors, (62), 2 states have call predecessors, (62), 2 states have return successors, (62), 2 states have call predecessors, (62), 2 states have call successors, (62) [2024-11-03 12:30:06,322 INFO L276 IsEmpty]: Start isEmpty. Operand 221 states and 347 transitions. [2024-11-03 12:30:06,324 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2024-11-03 12:30:06,324 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 12:30:06,324 INFO L215 NwaCegarLoop]: trace histogram [31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:30:06,328 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (4)] Ended with exit code 0 [2024-11-03 12:30:06,525 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-03 12:30:06,526 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 12:30:06,526 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 12:30:06,527 INFO L85 PathProgramCache]: Analyzing trace with hash -1161270789, now seen corresponding path program 1 times [2024-11-03 12:30:06,527 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 12:30:06,527 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [296231048] [2024-11-03 12:30:06,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 12:30:06,527 INFO L173 SolverBuilder]: Constructing external solver with command: bitwuzla [2024-11-03 12:30:06,527 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-03 12:30:06,529 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 12:30:06,530 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (5)] Waiting until timeout for monitored process [2024-11-03 12:30:06,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 12:30:06,617 INFO L255 TraceCheckSpWp]: Trace formula consists of 333 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-03 12:30:06,624 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 12:30:07,017 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2024-11-03 12:30:07,017 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 12:30:16,903 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2024-11-03 12:30:16,904 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 12:30:16,904 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [296231048] [2024-11-03 12:30:16,904 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [296231048] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-03 12:30:16,904 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-03 12:30:16,904 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 7] imperfect sequences [] total 10 [2024-11-03 12:30:16,904 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1723143037] [2024-11-03 12:30:16,905 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-03 12:30:16,908 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-03 12:30:16,909 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 12:30:16,909 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-03 12:30:16,910 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=58, Unknown=2, NotChecked=0, Total=90 [2024-11-03 12:30:16,910 INFO L87 Difference]: Start difference. First operand 221 states and 347 transitions. Second operand has 10 states, 10 states have (on average 5.2) internal successors, (52), 10 states have internal predecessors, (52), 1 states have call successors, (62), 2 states have call predecessors, (62), 2 states have return successors, (62), 1 states have call predecessors, (62), 1 states have call successors, (62) [2024-11-03 12:30:20,550 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 12:30:20,551 INFO L93 Difference]: Finished difference Result 592 states and 928 transitions. [2024-11-03 12:30:20,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-03 12:30:20,570 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 5.2) internal successors, (52), 10 states have internal predecessors, (52), 1 states have call successors, (62), 2 states have call predecessors, (62), 2 states have return successors, (62), 1 states have call predecessors, (62), 1 states have call successors, (62) Word has length 195 [2024-11-03 12:30:20,571 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 12:30:20,575 INFO L225 Difference]: With dead ends: 592 [2024-11-03 12:30:20,575 INFO L226 Difference]: Without dead ends: 434 [2024-11-03 12:30:20,576 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 393 GetRequests, 381 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 8.8s TimeCoverageRelationStatistics Valid=54, Invalid=100, Unknown=2, NotChecked=0, Total=156 [2024-11-03 12:30:20,577 INFO L432 NwaCegarLoop]: 230 mSDtfsCounter, 248 mSDsluCounter, 443 mSDsCounter, 0 mSdLazyCounter, 378 mSolverCounterSat, 127 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 248 SdHoareTripleChecker+Valid, 673 SdHoareTripleChecker+Invalid, 505 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 127 IncrementalHoareTripleChecker+Valid, 378 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2024-11-03 12:30:20,577 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [248 Valid, 673 Invalid, 505 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [127 Valid, 378 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2024-11-03 12:30:20,578 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 434 states. [2024-11-03 12:30:20,638 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 434 to 379. [2024-11-03 12:30:20,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 379 states, 218 states have (on average 1.311926605504587) internal successors, (286), 218 states have internal predecessors, (286), 155 states have call successors, (155), 5 states have call predecessors, (155), 5 states have return successors, (155), 155 states have call predecessors, (155), 155 states have call successors, (155) [2024-11-03 12:30:20,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 379 states to 379 states and 596 transitions. [2024-11-03 12:30:20,643 INFO L78 Accepts]: Start accepts. Automaton has 379 states and 596 transitions. Word has length 195 [2024-11-03 12:30:20,643 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 12:30:20,644 INFO L471 AbstractCegarLoop]: Abstraction has 379 states and 596 transitions. [2024-11-03 12:30:20,644 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.2) internal successors, (52), 10 states have internal predecessors, (52), 1 states have call successors, (62), 2 states have call predecessors, (62), 2 states have return successors, (62), 1 states have call predecessors, (62), 1 states have call successors, (62) [2024-11-03 12:30:20,644 INFO L276 IsEmpty]: Start isEmpty. Operand 379 states and 596 transitions. [2024-11-03 12:30:20,647 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2024-11-03 12:30:20,648 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 12:30:20,649 INFO L215 NwaCegarLoop]: trace histogram [31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:30:20,652 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (5)] Ended with exit code 0 [2024-11-03 12:30:20,849 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-03 12:30:20,850 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 12:30:20,850 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 12:30:20,851 INFO L85 PathProgramCache]: Analyzing trace with hash 490879956, now seen corresponding path program 1 times [2024-11-03 12:30:20,851 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 12:30:20,851 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1489943544] [2024-11-03 12:30:20,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 12:30:20,851 INFO L173 SolverBuilder]: Constructing external solver with command: bitwuzla [2024-11-03 12:30:20,851 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-03 12:30:20,852 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (exit command is (exit), workingDir is null) [2024-11-03 12:30:20,853 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (6)] Waiting until timeout for monitored process [2024-11-03 12:30:20,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 12:30:20,928 INFO L255 TraceCheckSpWp]: Trace formula consists of 335 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-03 12:30:20,932 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 12:30:21,016 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2024-11-03 12:30:21,016 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 12:30:21,502 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2024-11-03 12:30:21,503 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 12:30:21,503 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1489943544] [2024-11-03 12:30:21,503 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [1489943544] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-03 12:30:21,503 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-03 12:30:21,504 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2024-11-03 12:30:21,504 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1011849686] [2024-11-03 12:30:21,504 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-03 12:30:21,504 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-03 12:30:21,504 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 12:30:21,505 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-03 12:30:21,505 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-03 12:30:21,505 INFO L87 Difference]: Start difference. First operand 379 states and 596 transitions. Second operand has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-11-03 12:30:24,208 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 12:30:24,208 INFO L93 Difference]: Finished difference Result 780 states and 1225 transitions. [2024-11-03 12:30:24,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-03 12:30:24,209 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) Word has length 196 [2024-11-03 12:30:24,209 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 12:30:24,214 INFO L225 Difference]: With dead ends: 780 [2024-11-03 12:30:24,214 INFO L226 Difference]: Without dead ends: 464 [2024-11-03 12:30:24,216 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 391 GetRequests, 388 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-03 12:30:24,218 INFO L432 NwaCegarLoop]: 146 mSDtfsCounter, 50 mSDsluCounter, 254 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 400 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2024-11-03 12:30:24,218 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [50 Valid, 400 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2024-11-03 12:30:24,219 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 464 states. [2024-11-03 12:30:24,289 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 464 to 430. [2024-11-03 12:30:24,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 430 states, 269 states have (on average 1.312267657992565) internal successors, (353), 269 states have internal predecessors, (353), 155 states have call successors, (155), 5 states have call predecessors, (155), 5 states have return successors, (155), 155 states have call predecessors, (155), 155 states have call successors, (155) [2024-11-03 12:30:24,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 430 states to 430 states and 663 transitions. [2024-11-03 12:30:24,294 INFO L78 Accepts]: Start accepts. Automaton has 430 states and 663 transitions. Word has length 196 [2024-11-03 12:30:24,295 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 12:30:24,295 INFO L471 AbstractCegarLoop]: Abstraction has 430 states and 663 transitions. [2024-11-03 12:30:24,295 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-11-03 12:30:24,296 INFO L276 IsEmpty]: Start isEmpty. Operand 430 states and 663 transitions. [2024-11-03 12:30:24,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2024-11-03 12:30:24,298 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 12:30:24,298 INFO L215 NwaCegarLoop]: trace histogram [31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:30:24,303 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (6)] Ended with exit code 0 [2024-11-03 12:30:24,498 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-03 12:30:24,499 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 12:30:24,499 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 12:30:24,500 INFO L85 PathProgramCache]: Analyzing trace with hash 1191944534, now seen corresponding path program 1 times [2024-11-03 12:30:24,500 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 12:30:24,500 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [971866299] [2024-11-03 12:30:24,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 12:30:24,500 INFO L173 SolverBuilder]: Constructing external solver with command: bitwuzla [2024-11-03 12:30:24,500 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-03 12:30:24,501 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (exit command is (exit), workingDir is null) [2024-11-03 12:30:24,502 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (7)] Waiting until timeout for monitored process [2024-11-03 12:30:24,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 12:30:24,576 INFO L255 TraceCheckSpWp]: Trace formula consists of 333 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-03 12:30:24,581 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 12:30:26,922 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2024-11-03 12:30:26,922 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 12:30:27,857 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2024-11-03 12:30:27,858 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 12:30:27,858 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [971866299] [2024-11-03 12:30:27,858 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [971866299] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-03 12:30:27,858 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-03 12:30:27,858 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 5] imperfect sequences [] total 8 [2024-11-03 12:30:27,858 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [75235918] [2024-11-03 12:30:27,858 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-03 12:30:27,859 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-03 12:30:27,859 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 12:30:27,860 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-03 12:30:27,860 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-03 12:30:27,860 INFO L87 Difference]: Start difference. First operand 430 states and 663 transitions. Second operand has 8 states, 8 states have (on average 8.625) internal successors, (69), 8 states have internal predecessors, (69), 2 states have call successors, (62), 2 states have call predecessors, (62), 2 states have return successors, (62), 2 states have call predecessors, (62), 2 states have call successors, (62) [2024-11-03 12:30:29,880 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 12:30:29,880 INFO L93 Difference]: Finished difference Result 872 states and 1338 transitions. [2024-11-03 12:30:29,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-03 12:30:29,900 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.625) internal successors, (69), 8 states have internal predecessors, (69), 2 states have call successors, (62), 2 states have call predecessors, (62), 2 states have return successors, (62), 2 states have call predecessors, (62), 2 states have call successors, (62) Word has length 196 [2024-11-03 12:30:29,901 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 12:30:29,905 INFO L225 Difference]: With dead ends: 872 [2024-11-03 12:30:29,905 INFO L226 Difference]: Without dead ends: 505 [2024-11-03 12:30:29,907 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 394 GetRequests, 385 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2024-11-03 12:30:29,908 INFO L432 NwaCegarLoop]: 125 mSDtfsCounter, 105 mSDsluCounter, 425 mSDsCounter, 0 mSdLazyCounter, 100 mSolverCounterSat, 127 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 105 SdHoareTripleChecker+Valid, 550 SdHoareTripleChecker+Invalid, 227 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 127 IncrementalHoareTripleChecker+Valid, 100 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-11-03 12:30:29,908 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [105 Valid, 550 Invalid, 227 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [127 Valid, 100 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-11-03 12:30:29,909 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 505 states. [2024-11-03 12:30:29,949 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 505 to 430. [2024-11-03 12:30:29,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 430 states, 269 states have (on average 1.308550185873606) internal successors, (352), 269 states have internal predecessors, (352), 155 states have call successors, (155), 5 states have call predecessors, (155), 5 states have return successors, (155), 155 states have call predecessors, (155), 155 states have call successors, (155) [2024-11-03 12:30:29,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 430 states to 430 states and 662 transitions. [2024-11-03 12:30:29,954 INFO L78 Accepts]: Start accepts. Automaton has 430 states and 662 transitions. Word has length 196 [2024-11-03 12:30:29,955 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 12:30:29,955 INFO L471 AbstractCegarLoop]: Abstraction has 430 states and 662 transitions. [2024-11-03 12:30:29,955 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.625) internal successors, (69), 8 states have internal predecessors, (69), 2 states have call successors, (62), 2 states have call predecessors, (62), 2 states have return successors, (62), 2 states have call predecessors, (62), 2 states have call successors, (62) [2024-11-03 12:30:29,955 INFO L276 IsEmpty]: Start isEmpty. Operand 430 states and 662 transitions. [2024-11-03 12:30:29,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2024-11-03 12:30:29,957 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 12:30:29,958 INFO L215 NwaCegarLoop]: trace histogram [31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:30:29,960 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (7)] Ended with exit code 0 [2024-11-03 12:30:30,158 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-03 12:30:30,159 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 12:30:30,159 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 12:30:30,159 INFO L85 PathProgramCache]: Analyzing trace with hash 82456531, now seen corresponding path program 1 times [2024-11-03 12:30:30,159 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 12:30:30,159 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [850579279] [2024-11-03 12:30:30,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 12:30:30,160 INFO L173 SolverBuilder]: Constructing external solver with command: bitwuzla [2024-11-03 12:30:30,160 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-03 12:30:30,161 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (exit command is (exit), workingDir is null) [2024-11-03 12:30:30,162 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (8)] Waiting until timeout for monitored process [2024-11-03 12:30:30,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 12:30:30,240 INFO L255 TraceCheckSpWp]: Trace formula consists of 333 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-03 12:30:30,244 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 12:30:34,578 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 839 proven. 48 refuted. 0 times theorem prover too weak. 973 trivial. 0 not checked. [2024-11-03 12:30:34,578 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 12:30:38,280 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 126 proven. 51 refuted. 0 times theorem prover too weak. 1683 trivial. 0 not checked. [2024-11-03 12:30:38,280 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 12:30:38,280 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [850579279] [2024-11-03 12:30:38,280 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [850579279] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-03 12:30:38,281 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-03 12:30:38,281 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 12] total 22 [2024-11-03 12:30:38,281 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [143750843] [2024-11-03 12:30:38,281 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-03 12:30:38,282 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-11-03 12:30:38,282 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 12:30:38,283 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-11-03 12:30:38,283 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=120, Invalid=342, Unknown=0, NotChecked=0, Total=462 [2024-11-03 12:30:38,283 INFO L87 Difference]: Start difference. First operand 430 states and 662 transitions. Second operand has 22 states, 21 states have (on average 4.619047619047619) internal successors, (97), 20 states have internal predecessors, (97), 6 states have call successors, (62), 4 states have call predecessors, (62), 7 states have return successors, (62), 6 states have call predecessors, (62), 6 states have call successors, (62) [2024-11-03 12:30:49,554 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 12:30:49,554 INFO L93 Difference]: Finished difference Result 943 states and 1431 transitions. [2024-11-03 12:30:49,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2024-11-03 12:30:49,571 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 21 states have (on average 4.619047619047619) internal successors, (97), 20 states have internal predecessors, (97), 6 states have call successors, (62), 4 states have call predecessors, (62), 7 states have return successors, (62), 6 states have call predecessors, (62), 6 states have call successors, (62) Word has length 197 [2024-11-03 12:30:49,571 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 12:30:49,575 INFO L225 Difference]: With dead ends: 943 [2024-11-03 12:30:49,575 INFO L226 Difference]: Without dead ends: 580 [2024-11-03 12:30:49,578 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 419 GetRequests, 376 SyntacticMatches, 1 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 543 ImplicationChecksByTransitivity, 4.3s TimeCoverageRelationStatistics Valid=570, Invalid=1322, Unknown=0, NotChecked=0, Total=1892 [2024-11-03 12:30:49,579 INFO L432 NwaCegarLoop]: 105 mSDtfsCounter, 401 mSDsluCounter, 867 mSDsCounter, 0 mSdLazyCounter, 1246 mSolverCounterSat, 355 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 402 SdHoareTripleChecker+Valid, 972 SdHoareTripleChecker+Invalid, 1601 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 355 IncrementalHoareTripleChecker+Valid, 1246 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.6s IncrementalHoareTripleChecker+Time [2024-11-03 12:30:49,579 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [402 Valid, 972 Invalid, 1601 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [355 Valid, 1246 Invalid, 0 Unknown, 0 Unchecked, 8.6s Time] [2024-11-03 12:30:49,581 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 580 states. [2024-11-03 12:30:49,662 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 580 to 372. [2024-11-03 12:30:49,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 372 states, 240 states have (on average 1.3125) internal successors, (315), 240 states have internal predecessors, (315), 124 states have call successors, (124), 7 states have call predecessors, (124), 7 states have return successors, (124), 124 states have call predecessors, (124), 124 states have call successors, (124) [2024-11-03 12:30:49,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 372 states to 372 states and 563 transitions. [2024-11-03 12:30:49,667 INFO L78 Accepts]: Start accepts. Automaton has 372 states and 563 transitions. Word has length 197 [2024-11-03 12:30:49,667 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 12:30:49,668 INFO L471 AbstractCegarLoop]: Abstraction has 372 states and 563 transitions. [2024-11-03 12:30:49,668 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 21 states have (on average 4.619047619047619) internal successors, (97), 20 states have internal predecessors, (97), 6 states have call successors, (62), 4 states have call predecessors, (62), 7 states have return successors, (62), 6 states have call predecessors, (62), 6 states have call successors, (62) [2024-11-03 12:30:49,668 INFO L276 IsEmpty]: Start isEmpty. Operand 372 states and 563 transitions. [2024-11-03 12:30:49,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2024-11-03 12:30:49,669 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 12:30:49,670 INFO L215 NwaCegarLoop]: trace histogram [31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:30:49,677 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (8)] Forceful destruction successful, exit code 0 [2024-11-03 12:30:49,870 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-03 12:30:49,871 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 12:30:49,871 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 12:30:49,871 INFO L85 PathProgramCache]: Analyzing trace with hash 1258151658, now seen corresponding path program 1 times [2024-11-03 12:30:49,871 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 12:30:49,871 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1690215332] [2024-11-03 12:30:49,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 12:30:49,872 INFO L173 SolverBuilder]: Constructing external solver with command: bitwuzla [2024-11-03 12:30:49,872 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-03 12:30:49,873 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (exit command is (exit), workingDir is null) [2024-11-03 12:30:49,873 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (9)] Waiting until timeout for monitored process [2024-11-03 12:30:49,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 12:30:49,955 INFO L255 TraceCheckSpWp]: Trace formula consists of 335 conjuncts, 31 conjuncts are in the unsatisfiable core [2024-11-03 12:30:49,959 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 12:30:57,631 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 1204 proven. 66 refuted. 0 times theorem prover too weak. 590 trivial. 0 not checked. [2024-11-03 12:30:57,631 INFO L311 TraceCheckSpWp]: Computing backward predicates...