/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-23.i -------------------------------------------------------------------------------- This is Ultimate 0.2.5-dev-b75d321-m [2024-11-03 12:47:34,376 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-03 12:47:34,428 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 12:47:34,434 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-03 12:47:34,434 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-03 12:47:34,468 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-03 12:47:34,468 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-03 12:47:34,469 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-03 12:47:34,470 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-03 12:47:34,471 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-03 12:47:34,471 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-03 12:47:34,472 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-03 12:47:34,473 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-03 12:47:34,473 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-03 12:47:34,473 INFO L153 SettingsManager]: * Use SBE=true [2024-11-03 12:47:34,473 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-03 12:47:34,474 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-03 12:47:34,474 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-03 12:47:34,474 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-03 12:47:34,474 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-03 12:47:34,475 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-03 12:47:34,478 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-03 12:47:34,478 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-03 12:47:34,479 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-03 12:47:34,479 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-03 12:47:34,479 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-03 12:47:34,479 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-03 12:47:34,480 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-03 12:47:34,480 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-03 12:47:34,480 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-03 12:47:34,480 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-03 12:47:34,480 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-03 12:47:34,481 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-03 12:47:34,481 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-03 12:47:34,481 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-03 12:47:34,481 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-03 12:47:34,481 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-03 12:47:34,482 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-03 12:47:34,482 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-11-03 12:47:34,483 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-03 12:47:34,484 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-03 12:47:34,484 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-03 12:47:34,485 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-03 12:47:34,485 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-03 12:47:34,485 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Allow undefined functions -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Command for external solver -> bitwuzla [2024-11-03 12:47:34,688 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-03 12:47:34,710 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-03 12:47:34,714 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-03 12:47:34,715 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-03 12:47:34,716 INFO L274 PluginConnector]: CDTParser initialized [2024-11-03 12:47:34,717 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount250_file-23.i [2024-11-03 12:47:36,079 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-03 12:47:36,295 INFO L384 CDTParser]: Found 1 translation units. [2024-11-03 12:47:36,295 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount250_file-23.i [2024-11-03 12:47:36,305 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/282d6dd54/ef62ec05190144e7b37b0115c0d543c3/FLAG8237a3468 [2024-11-03 12:47:36,639 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/282d6dd54/ef62ec05190144e7b37b0115c0d543c3 [2024-11-03 12:47:36,641 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-03 12:47:36,643 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-11-03 12:47:36,644 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-03 12:47:36,644 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-03 12:47:36,649 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-03 12:47:36,650 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 12:47:36" (1/1) ... [2024-11-03 12:47:36,651 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@537c199 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:47:36, skipping insertion in model container [2024-11-03 12:47:36,651 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 12:47:36" (1/1) ... [2024-11-03 12:47:36,687 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-03 12:47:36,849 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-23.i[916,929] [2024-11-03 12:47:36,990 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-03 12:47:37,008 INFO L200 MainTranslator]: Completed pre-run [2024-11-03 12:47:37,017 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-23.i[916,929] [2024-11-03 12:47:37,077 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-03 12:47:37,099 INFO L204 MainTranslator]: Completed translation [2024-11-03 12:47:37,101 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:47:37 WrapperNode [2024-11-03 12:47:37,101 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-03 12:47:37,102 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-03 12:47:37,102 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-03 12:47:37,102 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-03 12:47:37,107 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:47:37" (1/1) ... [2024-11-03 12:47:37,124 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:47:37" (1/1) ... [2024-11-03 12:47:37,165 INFO L138 Inliner]: procedures = 27, calls = 70, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 372 [2024-11-03 12:47:37,166 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-03 12:47:37,167 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-03 12:47:37,167 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-03 12:47:37,167 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-03 12:47:37,174 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:47:37" (1/1) ... [2024-11-03 12:47:37,175 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:47:37" (1/1) ... [2024-11-03 12:47:37,181 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:47:37" (1/1) ... [2024-11-03 12:47:37,202 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 12:47:37,202 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:47:37" (1/1) ... [2024-11-03 12:47:37,202 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:47:37" (1/1) ... [2024-11-03 12:47:37,227 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:47:37" (1/1) ... [2024-11-03 12:47:37,231 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:47:37" (1/1) ... [2024-11-03 12:47:37,236 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:47:37" (1/1) ... [2024-11-03 12:47:37,239 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:47:37" (1/1) ... [2024-11-03 12:47:37,246 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-03 12:47:37,246 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-03 12:47:37,247 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-03 12:47:37,247 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-03 12:47:37,247 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:47:37" (1/1) ... [2024-11-03 12:47:37,255 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-03 12:47:37,266 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-03 12:47:37,281 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 12:47:37,287 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 12:47:37,310 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-03 12:47:37,310 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-03 12:47:37,310 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-03 12:47:37,310 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-03 12:47:37,311 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-03 12:47:37,312 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-03 12:47:37,440 INFO L238 CfgBuilder]: Building ICFG [2024-11-03 12:47:37,442 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-03 12:47:53,363 INFO L? ?]: Removed 60 outVars from TransFormulas that were not future-live. [2024-11-03 12:47:53,363 INFO L287 CfgBuilder]: Performing block encoding [2024-11-03 12:47:53,386 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-03 12:47:53,386 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-03 12:47:53,387 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 12:47:53 BoogieIcfgContainer [2024-11-03 12:47:53,387 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-03 12:47:53,389 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-03 12:47:53,389 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-03 12:47:53,392 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-03 12:47:53,392 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 12:47:36" (1/3) ... [2024-11-03 12:47:53,393 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2bb9133e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 12:47:53, skipping insertion in model container [2024-11-03 12:47:53,393 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:47:37" (2/3) ... [2024-11-03 12:47:53,393 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2bb9133e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 12:47:53, skipping insertion in model container [2024-11-03 12:47:53,393 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 12:47:53" (3/3) ... [2024-11-03 12:47:53,394 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount250_file-23.i [2024-11-03 12:47:53,407 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-03 12:47:53,407 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-03 12:47:53,457 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-03 12:47:53,462 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;@74ba0dbc, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-03 12:47:53,462 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-03 12:47:53,466 INFO L276 IsEmpty]: Start isEmpty. Operand has 168 states, 108 states have (on average 1.4722222222222223) internal successors, (159), 109 states have internal predecessors, (159), 57 states have call successors, (57), 1 states have call predecessors, (57), 1 states have return successors, (57), 57 states have call predecessors, (57), 57 states have call successors, (57) [2024-11-03 12:47:53,486 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 366 [2024-11-03 12:47:53,487 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 12:47:53,488 INFO L215 NwaCegarLoop]: trace histogram [57, 57, 57, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:47:53,488 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 12:47:53,493 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 12:47:53,493 INFO L85 PathProgramCache]: Analyzing trace with hash -884801934, now seen corresponding path program 1 times [2024-11-03 12:47:53,500 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 12:47:53,501 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1814948658] [2024-11-03 12:47:53,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 12:47:53,503 INFO L173 SolverBuilder]: Constructing external solver with command: bitwuzla [2024-11-03 12:47:53,503 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-03 12:47:53,505 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 12:47:53,507 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (2)] Waiting until timeout for monitored process [2024-11-03 12:47:53,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 12:47:53,771 INFO L255 TraceCheckSpWp]: Trace formula consists of 589 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-03 12:47:53,796 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 12:47:53,881 INFO L134 CoverageAnalysis]: Checked inductivity of 6384 backedges. 112 proven. 0 refuted. 0 times theorem prover too weak. 6272 trivial. 0 not checked. [2024-11-03 12:47:53,881 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 12:47:56,754 INFO L134 CoverageAnalysis]: Checked inductivity of 6384 backedges. 112 proven. 0 refuted. 0 times theorem prover too weak. 6272 trivial. 0 not checked. [2024-11-03 12:47:56,756 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 12:47:56,757 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1814948658] [2024-11-03 12:47:56,757 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [1814948658] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-03 12:47:56,758 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-03 12:47:56,758 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2024-11-03 12:47:56,760 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1993896242] [2024-11-03 12:47:56,760 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-03 12:47:56,764 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-03 12:47:56,764 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 12:47:56,782 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-03 12:47:56,783 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-03 12:47:56,785 INFO L87 Difference]: Start difference. First operand has 168 states, 108 states have (on average 1.4722222222222223) internal successors, (159), 109 states have internal predecessors, (159), 57 states have call successors, (57), 1 states have call predecessors, (57), 1 states have return successors, (57), 57 states have call predecessors, (57), 57 states have call successors, (57) Second operand has 2 states, 2 states have (on average 42.5) internal successors, (85), 2 states have internal predecessors, (85), 1 states have call successors, (57), 1 states have call predecessors, (57), 2 states have return successors, (57), 2 states have call predecessors, (57), 1 states have call successors, (57) [2024-11-03 12:47:56,830 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 12:47:56,830 INFO L93 Difference]: Finished difference Result 329 states and 597 transitions. [2024-11-03 12:47:56,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-03 12:47:56,832 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 42.5) internal successors, (85), 2 states have internal predecessors, (85), 1 states have call successors, (57), 1 states have call predecessors, (57), 2 states have return successors, (57), 2 states have call predecessors, (57), 1 states have call successors, (57) Word has length 365 [2024-11-03 12:47:56,833 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 12:47:56,841 INFO L225 Difference]: With dead ends: 329 [2024-11-03 12:47:56,841 INFO L226 Difference]: Without dead ends: 164 [2024-11-03 12:47:56,849 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 728 GetRequests, 728 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 12:47:56,852 INFO L432 NwaCegarLoop]: 266 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, 266 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 12:47:56,853 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 266 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-03 12:47:56,869 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 164 states. [2024-11-03 12:47:56,913 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 164 to 164. [2024-11-03 12:47:56,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 164 states, 105 states have (on average 1.4476190476190476) internal successors, (152), 105 states have internal predecessors, (152), 57 states have call successors, (57), 1 states have call predecessors, (57), 1 states have return successors, (57), 57 states have call predecessors, (57), 57 states have call successors, (57) [2024-11-03 12:47:56,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 164 states to 164 states and 266 transitions. [2024-11-03 12:47:56,919 INFO L78 Accepts]: Start accepts. Automaton has 164 states and 266 transitions. Word has length 365 [2024-11-03 12:47:56,919 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 12:47:56,920 INFO L471 AbstractCegarLoop]: Abstraction has 164 states and 266 transitions. [2024-11-03 12:47:56,920 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 42.5) internal successors, (85), 2 states have internal predecessors, (85), 1 states have call successors, (57), 1 states have call predecessors, (57), 2 states have return successors, (57), 2 states have call predecessors, (57), 1 states have call successors, (57) [2024-11-03 12:47:56,920 INFO L276 IsEmpty]: Start isEmpty. Operand 164 states and 266 transitions. [2024-11-03 12:47:56,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 366 [2024-11-03 12:47:56,929 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 12:47:56,930 INFO L215 NwaCegarLoop]: trace histogram [57, 57, 57, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:47:56,936 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (2)] Ended with exit code 0 [2024-11-03 12:47:57,135 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-03 12:47:57,136 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 12:47:57,136 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 12:47:57,137 INFO L85 PathProgramCache]: Analyzing trace with hash -717188040, now seen corresponding path program 1 times [2024-11-03 12:47:57,137 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 12:47:57,137 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [141112813] [2024-11-03 12:47:57,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 12:47:57,138 INFO L173 SolverBuilder]: Constructing external solver with command: bitwuzla [2024-11-03 12:47:57,138 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-03 12:47:57,140 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 12:47:57,142 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (3)] Waiting until timeout for monitored process [2024-11-03 12:47:57,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 12:47:57,404 INFO L255 TraceCheckSpWp]: Trace formula consists of 589 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-03 12:47:57,413 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 12:47:57,827 INFO L134 CoverageAnalysis]: Checked inductivity of 6384 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6384 trivial. 0 not checked. [2024-11-03 12:47:57,827 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 12:48:00,916 INFO L134 CoverageAnalysis]: Checked inductivity of 6384 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6384 trivial. 0 not checked. [2024-11-03 12:48:00,917 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 12:48:00,917 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [141112813] [2024-11-03 12:48:00,917 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [141112813] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-03 12:48:00,917 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-03 12:48:00,917 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2024-11-03 12:48:00,917 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1450913948] [2024-11-03 12:48:00,918 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-03 12:48:00,920 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-03 12:48:00,920 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 12:48:00,921 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-03 12:48:00,921 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-03 12:48:00,921 INFO L87 Difference]: Start difference. First operand 164 states and 266 transitions. Second operand has 4 states, 4 states have (on average 24.5) internal successors, (98), 4 states have internal predecessors, (98), 1 states have call successors, (57), 1 states have call predecessors, (57), 1 states have return successors, (57), 1 states have call predecessors, (57), 1 states have call successors, (57) [2024-11-03 12:48:05,815 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.30s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-03 12:48:09,822 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 [0] [2024-11-03 12:48:09,948 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 12:48:09,948 INFO L93 Difference]: Finished difference Result 324 states and 527 transitions. [2024-11-03 12:48:09,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-03 12:48:09,949 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 24.5) internal successors, (98), 4 states have internal predecessors, (98), 1 states have call successors, (57), 1 states have call predecessors, (57), 1 states have return successors, (57), 1 states have call predecessors, (57), 1 states have call successors, (57) Word has length 365 [2024-11-03 12:48:09,951 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 12:48:09,954 INFO L225 Difference]: With dead ends: 324 [2024-11-03 12:48:09,954 INFO L226 Difference]: Without dead ends: 163 [2024-11-03 12:48:09,955 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 728 GetRequests, 726 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-03 12:48:09,956 INFO L432 NwaCegarLoop]: 260 mSDtfsCounter, 0 mSDsluCounter, 496 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 0 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 756 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.0s IncrementalHoareTripleChecker+Time [2024-11-03 12:48:09,957 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 756 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 26 Invalid, 2 Unknown, 0 Unchecked, 9.0s Time] [2024-11-03 12:48:09,958 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 163 states. [2024-11-03 12:48:09,972 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 163 to 163. [2024-11-03 12:48:09,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 163 states, 104 states have (on average 1.4230769230769231) internal successors, (148), 104 states have internal predecessors, (148), 57 states have call successors, (57), 1 states have call predecessors, (57), 1 states have return successors, (57), 57 states have call predecessors, (57), 57 states have call successors, (57) [2024-11-03 12:48:09,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 163 states to 163 states and 262 transitions. [2024-11-03 12:48:09,976 INFO L78 Accepts]: Start accepts. Automaton has 163 states and 262 transitions. Word has length 365 [2024-11-03 12:48:09,980 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 12:48:09,981 INFO L471 AbstractCegarLoop]: Abstraction has 163 states and 262 transitions. [2024-11-03 12:48:09,981 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 24.5) internal successors, (98), 4 states have internal predecessors, (98), 1 states have call successors, (57), 1 states have call predecessors, (57), 1 states have return successors, (57), 1 states have call predecessors, (57), 1 states have call successors, (57) [2024-11-03 12:48:09,981 INFO L276 IsEmpty]: Start isEmpty. Operand 163 states and 262 transitions. [2024-11-03 12:48:09,987 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 367 [2024-11-03 12:48:09,987 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 12:48:09,987 INFO L215 NwaCegarLoop]: trace histogram [57, 57, 57, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:48:10,032 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (3)] Forceful destruction successful, exit code 0 [2024-11-03 12:48:10,191 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-03 12:48:10,192 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 12:48:10,193 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 12:48:10,193 INFO L85 PathProgramCache]: Analyzing trace with hash -1348765418, now seen corresponding path program 1 times [2024-11-03 12:48:10,193 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 12:48:10,193 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1722267674] [2024-11-03 12:48:10,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 12:48:10,194 INFO L173 SolverBuilder]: Constructing external solver with command: bitwuzla [2024-11-03 12:48:10,194 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-03 12:48:10,195 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 12:48:10,196 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (4)] Waiting until timeout for monitored process [2024-11-03 12:48:10,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 12:48:10,468 INFO L255 TraceCheckSpWp]: Trace formula consists of 591 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-03 12:48:10,477 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 12:48:30,384 INFO L134 CoverageAnalysis]: Checked inductivity of 6384 backedges. 1086 proven. 153 refuted. 0 times theorem prover too weak. 5145 trivial. 0 not checked. [2024-11-03 12:48:30,384 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 12:48:39,625 INFO L134 CoverageAnalysis]: Checked inductivity of 6384 backedges. 15 proven. 153 refuted. 0 times theorem prover too weak. 6216 trivial. 0 not checked. [2024-11-03 12:48:39,626 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 12:48:39,626 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1722267674] [2024-11-03 12:48:39,626 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [1722267674] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-03 12:48:39,626 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-03 12:48:39,626 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 8] total 14 [2024-11-03 12:48:39,627 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [36880608] [2024-11-03 12:48:39,627 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-03 12:48:39,629 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-03 12:48:39,629 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 12:48:39,633 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-03 12:48:39,633 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=137, Unknown=0, NotChecked=0, Total=182 [2024-11-03 12:48:39,634 INFO L87 Difference]: Start difference. First operand 163 states and 262 transitions. Second operand has 14 states, 14 states have (on average 10.642857142857142) internal successors, (149), 14 states have internal predecessors, (149), 4 states have call successors, (114), 3 states have call predecessors, (114), 5 states have return successors, (114), 4 states have call predecessors, (114), 4 states have call successors, (114) [2024-11-03 12:48:53,273 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.26s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-03 12:48:57,282 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-03 12:49:01,287 WARN L539 Checker$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 12:49:05,294 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-03 12:49:09,310 WARN L539 Checker$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 []