/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/bitvector/s3_srvr_1a.BV.c.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.5-dev-b75d321-m [2024-11-03 13:37:08,377 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-03 13:37:08,430 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 13:37:08,435 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-03 13:37:08,435 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-03 13:37:08,457 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-03 13:37:08,457 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-03 13:37:08,458 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-03 13:37:08,458 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-03 13:37:08,459 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-03 13:37:08,459 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-03 13:37:08,460 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-03 13:37:08,460 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-03 13:37:08,460 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-03 13:37:08,460 INFO L153 SettingsManager]: * Use SBE=true [2024-11-03 13:37:08,461 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-03 13:37:08,461 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-03 13:37:08,461 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-03 13:37:08,463 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-03 13:37:08,463 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-03 13:37:08,464 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-03 13:37:08,465 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-03 13:37:08,465 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-03 13:37:08,465 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-03 13:37:08,465 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-03 13:37:08,465 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-03 13:37:08,465 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-03 13:37:08,465 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-03 13:37:08,465 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-03 13:37:08,466 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-03 13:37:08,466 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-03 13:37:08,466 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-03 13:37:08,466 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-03 13:37:08,466 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-03 13:37:08,466 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-03 13:37:08,467 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-03 13:37:08,467 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-03 13:37:08,467 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-03 13:37:08,467 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-11-03 13:37:08,467 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-03 13:37:08,467 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-03 13:37:08,468 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-03 13:37:08,468 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-03 13:37:08,468 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-03 13:37:08,468 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Allow undefined functions -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Command for external solver -> bitwuzla [2024-11-03 13:37:08,633 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-03 13:37:08,651 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-03 13:37:08,653 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-03 13:37:08,654 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-03 13:37:08,654 INFO L274 PluginConnector]: CDTParser initialized [2024-11-03 13:37:08,655 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/bitvector/s3_srvr_1a.BV.c.cil.c [2024-11-03 13:37:09,821 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-03 13:37:09,971 INFO L384 CDTParser]: Found 1 translation units. [2024-11-03 13:37:09,971 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/bitvector/s3_srvr_1a.BV.c.cil.c [2024-11-03 13:37:09,990 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/32b6452b6/5b028f521a4c43c69c37c0c8f63f6bd0/FLAG5e9648d64 [2024-11-03 13:37:10,386 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/32b6452b6/5b028f521a4c43c69c37c0c8f63f6bd0 [2024-11-03 13:37:10,388 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-03 13:37:10,389 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-11-03 13:37:10,390 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-03 13:37:10,390 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-03 13:37:10,394 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-03 13:37:10,394 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 01:37:10" (1/1) ... [2024-11-03 13:37:10,395 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4aaf7006 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:37:10, skipping insertion in model container [2024-11-03 13:37:10,395 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 01:37:10" (1/1) ... [2024-11-03 13:37:10,425 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-03 13:37:10,588 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/bitvector/s3_srvr_1a.BV.c.cil.c[44949,44962] [2024-11-03 13:37:10,596 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-03 13:37:10,603 INFO L200 MainTranslator]: Completed pre-run [2024-11-03 13:37:10,633 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/bitvector/s3_srvr_1a.BV.c.cil.c[44949,44962] [2024-11-03 13:37:10,635 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-03 13:37:10,647 INFO L204 MainTranslator]: Completed translation [2024-11-03 13:37:10,647 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:37:10 WrapperNode [2024-11-03 13:37:10,647 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-03 13:37:10,648 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-03 13:37:10,648 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-03 13:37:10,648 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-03 13:37:10,652 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:37:10" (1/1) ... [2024-11-03 13:37:10,659 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:37:10" (1/1) ... [2024-11-03 13:37:10,678 INFO L138 Inliner]: procedures = 16, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 514 [2024-11-03 13:37:10,678 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-03 13:37:10,679 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-03 13:37:10,679 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-03 13:37:10,679 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-03 13:37:10,686 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:37:10" (1/1) ... [2024-11-03 13:37:10,686 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:37:10" (1/1) ... [2024-11-03 13:37:10,693 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:37:10" (1/1) ... [2024-11-03 13:37:10,702 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 13:37:10,702 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:37:10" (1/1) ... [2024-11-03 13:37:10,703 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:37:10" (1/1) ... [2024-11-03 13:37:10,708 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:37:10" (1/1) ... [2024-11-03 13:37:10,711 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:37:10" (1/1) ... [2024-11-03 13:37:10,712 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:37:10" (1/1) ... [2024-11-03 13:37:10,713 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:37:10" (1/1) ... [2024-11-03 13:37:10,716 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-03 13:37:10,716 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-03 13:37:10,716 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-03 13:37:10,716 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-03 13:37:10,717 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:37:10" (1/1) ... [2024-11-03 13:37:10,724 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-03 13:37:10,738 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-03 13:37:10,755 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 13:37:10,760 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 13:37:10,779 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-03 13:37:10,779 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-03 13:37:10,779 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-03 13:37:10,779 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-03 13:37:10,842 INFO L238 CfgBuilder]: Building ICFG [2024-11-03 13:37:10,843 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-03 13:37:10,852 WARN L781 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2024-11-03 13:37:11,180 INFO L735 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##90: assume false; [2024-11-03 13:37:11,181 INFO L735 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##91: assume !false; [2024-11-03 13:37:11,214 INFO L? ?]: Removed 128 outVars from TransFormulas that were not future-live. [2024-11-03 13:37:11,214 INFO L287 CfgBuilder]: Performing block encoding [2024-11-03 13:37:11,227 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-03 13:37:11,228 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-03 13:37:11,228 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 01:37:11 BoogieIcfgContainer [2024-11-03 13:37:11,228 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-03 13:37:11,230 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-03 13:37:11,230 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-03 13:37:11,232 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-03 13:37:11,232 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 01:37:10" (1/3) ... [2024-11-03 13:37:11,233 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@bf83a8c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 01:37:11, skipping insertion in model container [2024-11-03 13:37:11,233 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:37:10" (2/3) ... [2024-11-03 13:37:11,233 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@bf83a8c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 01:37:11, skipping insertion in model container [2024-11-03 13:37:11,233 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 01:37:11" (3/3) ... [2024-11-03 13:37:11,234 INFO L112 eAbstractionObserver]: Analyzing ICFG s3_srvr_1a.BV.c.cil.c [2024-11-03 13:37:11,245 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-03 13:37:11,245 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-03 13:37:11,285 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-03 13:37:11,290 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;@4942e5ce, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-03 13:37:11,290 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-03 13:37:11,293 INFO L276 IsEmpty]: Start isEmpty. Operand has 140 states, 138 states have (on average 1.7318840579710144) internal successors, (239), 139 states have internal predecessors, (239), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-03 13:37:11,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2024-11-03 13:37:11,298 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 13:37:11,299 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:37:11,299 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 13:37:11,302 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 13:37:11,302 INFO L85 PathProgramCache]: Analyzing trace with hash 1632000041, now seen corresponding path program 1 times [2024-11-03 13:37:11,308 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 13:37:11,308 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1657337393] [2024-11-03 13:37:11,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 13:37:11,310 INFO L173 SolverBuilder]: Constructing external solver with command: bitwuzla [2024-11-03 13:37:11,310 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-03 13:37:11,312 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 13:37:11,316 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (2)] Waiting until timeout for monitored process [2024-11-03 13:37:11,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 13:37:11,395 INFO L255 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-03 13:37:11,401 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 13:37:11,461 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-03 13:37:11,462 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 13:37:11,500 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-03 13:37:11,501 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 13:37:11,501 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1657337393] [2024-11-03 13:37:11,502 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [1657337393] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-03 13:37:11,502 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-03 13:37:11,502 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2024-11-03 13:37:11,504 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [260680977] [2024-11-03 13:37:11,504 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-03 13:37:11,507 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-03 13:37:11,507 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 13:37:11,525 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-03 13:37:11,526 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-03 13:37:11,528 INFO L87 Difference]: Start difference. First operand has 140 states, 138 states have (on average 1.7318840579710144) internal successors, (239), 139 states have internal predecessors, (239), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-03 13:37:11,676 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 13:37:11,676 INFO L93 Difference]: Finished difference Result 295 states and 506 transitions. [2024-11-03 13:37:11,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-03 13:37:11,678 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 44 [2024-11-03 13:37:11,679 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 13:37:11,684 INFO L225 Difference]: With dead ends: 295 [2024-11-03 13:37:11,685 INFO L226 Difference]: Without dead ends: 144 [2024-11-03 13:37:11,687 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 85 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-03 13:37:11,689 INFO L432 NwaCegarLoop]: 241 mSDtfsCounter, 24 mSDsluCounter, 126 mSDsCounter, 0 mSdLazyCounter, 109 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 367 SdHoareTripleChecker+Invalid, 119 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 109 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-03 13:37:11,689 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 367 Invalid, 119 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 109 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-03 13:37:11,701 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144 states. [2024-11-03 13:37:11,714 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144 to 144. [2024-11-03 13:37:11,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 144 states, 143 states have (on average 1.5244755244755244) internal successors, (218), 143 states have internal predecessors, (218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-03 13:37:11,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 218 transitions. [2024-11-03 13:37:11,718 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 218 transitions. Word has length 44 [2024-11-03 13:37:11,718 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 13:37:11,719 INFO L471 AbstractCegarLoop]: Abstraction has 144 states and 218 transitions. [2024-11-03 13:37:11,719 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-03 13:37:11,719 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 218 transitions. [2024-11-03 13:37:11,720 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2024-11-03 13:37:11,720 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 13:37:11,721 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:37:11,724 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (2)] Forceful destruction successful, exit code 0 [2024-11-03 13:37:11,925 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-03 13:37:11,927 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 13:37:11,927 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 13:37:11,928 INFO L85 PathProgramCache]: Analyzing trace with hash -193922812, now seen corresponding path program 1 times [2024-11-03 13:37:11,928 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 13:37:11,928 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1873074797] [2024-11-03 13:37:11,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 13:37:11,929 INFO L173 SolverBuilder]: Constructing external solver with command: bitwuzla [2024-11-03 13:37:11,929 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-03 13:37:11,931 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 13:37:11,932 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (3)] Waiting until timeout for monitored process [2024-11-03 13:37:11,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 13:37:11,988 INFO L255 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-03 13:37:11,989 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 13:37:12,024 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-03 13:37:12,024 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 13:37:12,058 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-03 13:37:12,059 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 13:37:12,059 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1873074797] [2024-11-03 13:37:12,059 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [1873074797] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-03 13:37:12,059 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-03 13:37:12,059 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2024-11-03 13:37:12,059 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1709300314] [2024-11-03 13:37:12,059 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-03 13:37:12,061 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-03 13:37:12,061 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 13:37:12,061 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-03 13:37:12,062 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-03 13:37:12,062 INFO L87 Difference]: Start difference. First operand 144 states and 218 transitions. Second operand has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-03 13:37:12,189 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 13:37:12,189 INFO L93 Difference]: Finished difference Result 301 states and 462 transitions. [2024-11-03 13:37:12,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-03 13:37:12,189 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 60 [2024-11-03 13:37:12,190 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 13:37:12,191 INFO L225 Difference]: With dead ends: 301 [2024-11-03 13:37:12,191 INFO L226 Difference]: Without dead ends: 165 [2024-11-03 13:37:12,191 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 117 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-03 13:37:12,192 INFO L432 NwaCegarLoop]: 190 mSDtfsCounter, 9 mSDsluCounter, 100 mSDsCounter, 0 mSdLazyCounter, 109 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 290 SdHoareTripleChecker+Invalid, 121 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 109 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-03 13:37:12,193 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 290 Invalid, 121 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 109 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-03 13:37:12,196 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 165 states. [2024-11-03 13:37:12,208 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 165 to 165. [2024-11-03 13:37:12,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 165 states, 164 states have (on average 1.4878048780487805) internal successors, (244), 164 states have internal predecessors, (244), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-03 13:37:12,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 165 states to 165 states and 244 transitions. [2024-11-03 13:37:12,210 INFO L78 Accepts]: Start accepts. Automaton has 165 states and 244 transitions. Word has length 60 [2024-11-03 13:37:12,210 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 13:37:12,210 INFO L471 AbstractCegarLoop]: Abstraction has 165 states and 244 transitions. [2024-11-03 13:37:12,210 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-03 13:37:12,210 INFO L276 IsEmpty]: Start isEmpty. Operand 165 states and 244 transitions. [2024-11-03 13:37:12,212 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-11-03 13:37:12,214 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 13:37:12,214 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:37:12,216 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (3)] Ended with exit code 0 [2024-11-03 13:37:12,415 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-03 13:37:12,416 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 13:37:12,416 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 13:37:12,417 INFO L85 PathProgramCache]: Analyzing trace with hash -751274889, now seen corresponding path program 1 times [2024-11-03 13:37:12,417 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 13:37:12,417 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1501846653] [2024-11-03 13:37:12,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 13:37:12,417 INFO L173 SolverBuilder]: Constructing external solver with command: bitwuzla [2024-11-03 13:37:12,417 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-03 13:37:12,419 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 13:37:12,420 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (4)] Waiting until timeout for monitored process [2024-11-03 13:37:12,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 13:37:12,465 INFO L255 TraceCheckSpWp]: Trace formula consists of 108 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-03 13:37:12,467 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 13:37:12,522 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-03 13:37:12,522 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 13:37:12,566 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-03 13:37:12,567 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 13:37:12,567 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1501846653] [2024-11-03 13:37:12,567 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [1501846653] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-03 13:37:12,567 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-03 13:37:12,567 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2024-11-03 13:37:12,567 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2074156640] [2024-11-03 13:37:12,568 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-03 13:37:12,569 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-03 13:37:12,569 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 13:37:12,569 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-03 13:37:12,569 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-03 13:37:12,570 INFO L87 Difference]: Start difference. First operand 165 states and 244 transitions. Second operand has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-03 13:37:12,711 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 13:37:12,712 INFO L93 Difference]: Finished difference Result 364 states and 554 transitions. [2024-11-03 13:37:12,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-03 13:37:12,712 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 81 [2024-11-03 13:37:12,713 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 13:37:12,714 INFO L225 Difference]: With dead ends: 364 [2024-11-03 13:37:12,714 INFO L226 Difference]: Without dead ends: 207 [2024-11-03 13:37:12,714 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 160 GetRequests, 159 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-03 13:37:12,715 INFO L432 NwaCegarLoop]: 187 mSDtfsCounter, 10 mSDsluCounter, 100 mSDsCounter, 0 mSdLazyCounter, 127 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 287 SdHoareTripleChecker+Invalid, 159 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 127 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-03 13:37:12,716 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 287 Invalid, 159 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 127 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-03 13:37:12,716 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 207 states. [2024-11-03 13:37:12,722 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 207 to 207. [2024-11-03 13:37:12,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 207 states, 206 states have (on average 1.412621359223301) internal successors, (291), 206 states have internal predecessors, (291), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-03 13:37:12,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 207 states to 207 states and 291 transitions. [2024-11-03 13:37:12,723 INFO L78 Accepts]: Start accepts. Automaton has 207 states and 291 transitions. Word has length 81 [2024-11-03 13:37:12,723 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 13:37:12,724 INFO L471 AbstractCegarLoop]: Abstraction has 207 states and 291 transitions. [2024-11-03 13:37:12,724 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-03 13:37:12,724 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states and 291 transitions. [2024-11-03 13:37:12,726 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-11-03 13:37:12,726 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 13:37:12,726 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:37:12,732 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (4)] Forceful destruction successful, exit code 0 [2024-11-03 13:37:12,927 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-03 13:37:12,927 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 13:37:12,928 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 13:37:12,928 INFO L85 PathProgramCache]: Analyzing trace with hash -503128395, now seen corresponding path program 1 times [2024-11-03 13:37:12,928 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 13:37:12,928 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [141387062] [2024-11-03 13:37:12,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 13:37:12,929 INFO L173 SolverBuilder]: Constructing external solver with command: bitwuzla [2024-11-03 13:37:12,929 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-03 13:37:12,930 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 13:37:12,931 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (5)] Waiting until timeout for monitored process [2024-11-03 13:37:12,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 13:37:12,980 INFO L255 TraceCheckSpWp]: Trace formula consists of 108 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-03 13:37:12,982 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 13:37:13,013 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-03 13:37:13,014 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 13:37:13,043 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-03 13:37:13,043 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 13:37:13,043 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [141387062] [2024-11-03 13:37:13,043 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [141387062] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-03 13:37:13,043 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-03 13:37:13,044 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2024-11-03 13:37:13,044 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1932009009] [2024-11-03 13:37:13,044 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-03 13:37:13,044 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-03 13:37:13,044 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 13:37:13,045 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-03 13:37:13,045 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-03 13:37:13,047 INFO L87 Difference]: Start difference. First operand 207 states and 291 transitions. Second operand has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-03 13:37:13,148 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 13:37:13,149 INFO L93 Difference]: Finished difference Result 429 states and 612 transitions. [2024-11-03 13:37:13,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-03 13:37:13,149 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 81 [2024-11-03 13:37:13,149 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 13:37:13,150 INFO L225 Difference]: With dead ends: 429 [2024-11-03 13:37:13,150 INFO L226 Difference]: Without dead ends: 230 [2024-11-03 13:37:13,151 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 160 GetRequests, 159 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-03 13:37:13,152 INFO L432 NwaCegarLoop]: 206 mSDtfsCounter, 9 mSDsluCounter, 100 mSDsCounter, 0 mSdLazyCounter, 111 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 306 SdHoareTripleChecker+Invalid, 125 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 111 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-03 13:37:13,156 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 306 Invalid, 125 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 111 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-03 13:37:13,157 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 230 states. [2024-11-03 13:37:13,162 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 230 to 230. [2024-11-03 13:37:13,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 230 states, 229 states have (on average 1.3930131004366813) internal successors, (319), 229 states have internal predecessors, (319), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-03 13:37:13,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 230 states to 230 states and 319 transitions. [2024-11-03 13:37:13,164 INFO L78 Accepts]: Start accepts. Automaton has 230 states and 319 transitions. Word has length 81 [2024-11-03 13:37:13,165 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 13:37:13,169 INFO L471 AbstractCegarLoop]: Abstraction has 230 states and 319 transitions. [2024-11-03 13:37:13,169 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-03 13:37:13,169 INFO L276 IsEmpty]: Start isEmpty. Operand 230 states and 319 transitions. [2024-11-03 13:37:13,171 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-11-03 13:37:13,171 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 13:37:13,172 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:37:13,175 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (5)] Ended with exit code 0 [2024-11-03 13:37:13,372 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-03 13:37:13,372 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 13:37:13,373 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 13:37:13,373 INFO L85 PathProgramCache]: Analyzing trace with hash 356294499, now seen corresponding path program 1 times [2024-11-03 13:37:13,373 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 13:37:13,373 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1117327091] [2024-11-03 13:37:13,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 13:37:13,374 INFO L173 SolverBuilder]: Constructing external solver with command: bitwuzla [2024-11-03 13:37:13,374 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-03 13:37:13,377 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 13:37:13,378 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (6)] Waiting until timeout for monitored process [2024-11-03 13:37:13,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 13:37:13,417 INFO L255 TraceCheckSpWp]: Trace formula consists of 130 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-03 13:37:13,418 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 13:37:13,452 INFO L134 CoverageAnalysis]: Checked inductivity of 83 backedges. 45 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2024-11-03 13:37:13,453 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 13:37:13,476 INFO L134 CoverageAnalysis]: Checked inductivity of 83 backedges. 45 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2024-11-03 13:37:13,476 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 13:37:13,476 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1117327091] [2024-11-03 13:37:13,476 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [1117327091] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-03 13:37:13,477 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-03 13:37:13,477 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2024-11-03 13:37:13,477 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2014360106] [2024-11-03 13:37:13,477 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-03 13:37:13,477 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-03 13:37:13,477 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 13:37:13,478 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-03 13:37:13,478 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-03 13:37:13,478 INFO L87 Difference]: Start difference. First operand 230 states and 319 transitions. Second operand has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-03 13:37:13,578 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 13:37:13,579 INFO L93 Difference]: Finished difference Result 477 states and 672 transitions. [2024-11-03 13:37:13,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-03 13:37:13,579 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 101 [2024-11-03 13:37:13,579 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 13:37:13,580 INFO L225 Difference]: With dead ends: 477 [2024-11-03 13:37:13,580 INFO L226 Difference]: Without dead ends: 255 [2024-11-03 13:37:13,581 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 200 GetRequests, 199 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-03 13:37:13,581 INFO L432 NwaCegarLoop]: 205 mSDtfsCounter, 9 mSDsluCounter, 100 mSDsCounter, 0 mSdLazyCounter, 113 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 305 SdHoareTripleChecker+Invalid, 129 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 113 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-03 13:37:13,581 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 305 Invalid, 129 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 113 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-03 13:37:13,585 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 255 states. [2024-11-03 13:37:13,594 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 255 to 255. [2024-11-03 13:37:13,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 255 states, 254 states have (on average 1.374015748031496) internal successors, (349), 254 states have internal predecessors, (349), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-03 13:37:13,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 255 states to 255 states and 349 transitions. [2024-11-03 13:37:13,595 INFO L78 Accepts]: Start accepts. Automaton has 255 states and 349 transitions. Word has length 101 [2024-11-03 13:37:13,595 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 13:37:13,595 INFO L471 AbstractCegarLoop]: Abstraction has 255 states and 349 transitions. [2024-11-03 13:37:13,595 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-03 13:37:13,595 INFO L276 IsEmpty]: Start isEmpty. Operand 255 states and 349 transitions. [2024-11-03 13:37:13,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2024-11-03 13:37:13,599 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 13:37:13,599 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 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 13:37:13,604 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (6)] Ended with exit code 0 [2024-11-03 13:37:13,804 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-03 13:37:13,805 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 13:37:13,805 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 13:37:13,805 INFO L85 PathProgramCache]: Analyzing trace with hash 112174862, now seen corresponding path program 1 times [2024-11-03 13:37:13,805 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 13:37:13,805 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [827172474] [2024-11-03 13:37:13,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 13:37:13,805 INFO L173 SolverBuilder]: Constructing external solver with command: bitwuzla [2024-11-03 13:37:13,806 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-03 13:37:13,807 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 13:37:13,808 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (7)] Waiting until timeout for monitored process [2024-11-03 13:37:13,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 13:37:13,857 INFO L255 TraceCheckSpWp]: Trace formula consists of 151 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-03 13:37:13,858 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 13:37:13,910 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 62 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2024-11-03 13:37:13,910 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 13:37:13,966 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 62 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2024-11-03 13:37:13,967 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 13:37:13,967 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [827172474] [2024-11-03 13:37:13,967 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [827172474] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-03 13:37:13,967 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-03 13:37:13,967 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2024-11-03 13:37:13,967 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1831384158] [2024-11-03 13:37:13,967 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-03 13:37:13,967 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-03 13:37:13,967 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 13:37:13,968 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-03 13:37:13,968 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-03 13:37:13,968 INFO L87 Difference]: Start difference. First operand 255 states and 349 transitions. Second operand has 4 states, 4 states have (on average 34.5) internal successors, (138), 4 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-03 13:37:14,016 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 13:37:14,017 INFO L93 Difference]: Finished difference Result 984 states and 1347 transitions. [2024-11-03 13:37:14,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-03 13:37:14,017 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 34.5) internal successors, (138), 4 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 121 [2024-11-03 13:37:14,018 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 13:37:14,020 INFO L225 Difference]: With dead ends: 984 [2024-11-03 13:37:14,020 INFO L226 Difference]: Without dead ends: 737 [2024-11-03 13:37:14,020 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 240 GetRequests, 238 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-03 13:37:14,021 INFO L432 NwaCegarLoop]: 270 mSDtfsCounter, 277 mSDsluCounter, 354 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 277 SdHoareTripleChecker+Valid, 624 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-03 13:37:14,021 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [277 Valid, 624 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-03 13:37:14,024 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 737 states. [2024-11-03 13:37:14,037 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 737 to 737. [2024-11-03 13:37:14,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 737 states, 736 states have (on average 1.3627717391304348) internal successors, (1003), 736 states have internal predecessors, (1003), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-03 13:37:14,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 737 states to 737 states and 1003 transitions. [2024-11-03 13:37:14,040 INFO L78 Accepts]: Start accepts. Automaton has 737 states and 1003 transitions. Word has length 121 [2024-11-03 13:37:14,041 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 13:37:14,041 INFO L471 AbstractCegarLoop]: Abstraction has 737 states and 1003 transitions. [2024-11-03 13:37:14,042 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 34.5) internal successors, (138), 4 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-03 13:37:14,042 INFO L276 IsEmpty]: Start isEmpty. Operand 737 states and 1003 transitions. [2024-11-03 13:37:14,043 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2024-11-03 13:37:14,043 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 13:37:14,043 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 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 13:37:14,046 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (7)] Ended with exit code 0 [2024-11-03 13:37:14,244 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-03 13:37:14,244 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 13:37:14,245 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 13:37:14,245 INFO L85 PathProgramCache]: Analyzing trace with hash 1428032826, now seen corresponding path program 1 times [2024-11-03 13:37:14,245 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 13:37:14,245 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1518739469] [2024-11-03 13:37:14,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 13:37:14,245 INFO L173 SolverBuilder]: Constructing external solver with command: bitwuzla [2024-11-03 13:37:14,245 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-03 13:37:14,265 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 13:37:14,266 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (8)] Waiting until timeout for monitored process [2024-11-03 13:37:14,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 13:37:14,309 INFO L255 TraceCheckSpWp]: Trace formula consists of 151 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-03 13:37:14,310 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 13:37:14,353 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 89 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-03 13:37:14,354 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 13:37:14,402 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 89 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-03 13:37:14,402 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 13:37:14,402 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1518739469] [2024-11-03 13:37:14,402 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [1518739469] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-03 13:37:14,402 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-03 13:37:14,402 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2024-11-03 13:37:14,402 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1012527250] [2024-11-03 13:37:14,403 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-03 13:37:14,403 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-03 13:37:14,403 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 13:37:14,403 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-03 13:37:14,403 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-03 13:37:14,403 INFO L87 Difference]: Start difference. First operand 737 states and 1003 transitions. Second operand has 3 states, 3 states have (on average 37.333333333333336) internal successors, (112), 3 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-03 13:37:14,430 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 13:37:14,430 INFO L93 Difference]: Finished difference Result 1709 states and 2327 transitions. [2024-11-03 13:37:14,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-03 13:37:14,431 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 37.333333333333336) internal successors, (112), 3 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 122 [2024-11-03 13:37:14,431 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 13:37:14,433 INFO L225 Difference]: With dead ends: 1709 [2024-11-03 13:37:14,433 INFO L226 Difference]: Without dead ends: 980 [2024-11-03 13:37:14,434 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 242 GetRequests, 241 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-03 13:37:14,435 INFO L432 NwaCegarLoop]: 310 mSDtfsCounter, 133 mSDsluCounter, 182 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 133 SdHoareTripleChecker+Valid, 492 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-03 13:37:14,435 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [133 Valid, 492 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-03 13:37:14,435 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 980 states. [2024-11-03 13:37:14,445 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 980 to 980. [2024-11-03 13:37:14,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 980 states, 979 states have (on average 1.3595505617977528) internal successors, (1331), 979 states have internal predecessors, (1331), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-03 13:37:14,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 980 states to 980 states and 1331 transitions. [2024-11-03 13:37:14,448 INFO L78 Accepts]: Start accepts. Automaton has 980 states and 1331 transitions. Word has length 122 [2024-11-03 13:37:14,448 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 13:37:14,448 INFO L471 AbstractCegarLoop]: Abstraction has 980 states and 1331 transitions. [2024-11-03 13:37:14,448 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.333333333333336) internal successors, (112), 3 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-03 13:37:14,448 INFO L276 IsEmpty]: Start isEmpty. Operand 980 states and 1331 transitions. [2024-11-03 13:37:14,450 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2024-11-03 13:37:14,450 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 13:37:14,450 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 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 13:37:14,455 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (8)] Forceful destruction successful, exit code 0 [2024-11-03 13:37:14,650 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-03 13:37:14,651 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 13:37:14,652 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 13:37:14,652 INFO L85 PathProgramCache]: Analyzing trace with hash -990451652, now seen corresponding path program 1 times [2024-11-03 13:37:14,652 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 13:37:14,652 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [395025245] [2024-11-03 13:37:14,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 13:37:14,652 INFO L173 SolverBuilder]: Constructing external solver with command: bitwuzla [2024-11-03 13:37:14,653 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-03 13:37:14,654 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 13:37:14,657 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (9)] Waiting until timeout for monitored process [2024-11-03 13:37:14,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 13:37:14,702 INFO L255 TraceCheckSpWp]: Trace formula consists of 150 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-03 13:37:14,703 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 13:37:14,728 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 65 proven. 0 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2024-11-03 13:37:14,729 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 13:37:14,758 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 65 proven. 0 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2024-11-03 13:37:14,759 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 13:37:14,759 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [395025245] [2024-11-03 13:37:14,759 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [395025245] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-03 13:37:14,759 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-03 13:37:14,759 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2024-11-03 13:37:14,759 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1850610284] [2024-11-03 13:37:14,759 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-03 13:37:14,759 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-03 13:37:14,760 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 13:37:14,760 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-03 13:37:14,760 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-03 13:37:14,760 INFO L87 Difference]: Start difference. First operand 980 states and 1331 transitions. Second operand has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 3 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-03 13:37:14,779 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 13:37:14,779 INFO L93 Difference]: Finished difference Result 1976 states and 2680 transitions. [2024-11-03 13:37:14,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-03 13:37:14,779 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 3 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 122 [2024-11-03 13:37:14,779 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 13:37:14,782 INFO L225 Difference]: With dead ends: 1976 [2024-11-03 13:37:14,782 INFO L226 Difference]: Without dead ends: 1004 [2024-11-03 13:37:14,783 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 242 GetRequests, 241 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-03 13:37:14,784 INFO L432 NwaCegarLoop]: 204 mSDtfsCounter, 10 mSDsluCounter, 182 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 386 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-03 13:37:14,784 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 386 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-03 13:37:14,785 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1004 states. [2024-11-03 13:37:14,794 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1004 to 1004. [2024-11-03 13:37:14,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1004 states, 1003 states have (on average 1.3559322033898304) internal successors, (1360), 1003 states have internal predecessors, (1360), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-03 13:37:14,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1004 states to 1004 states and 1360 transitions. [2024-11-03 13:37:14,797 INFO L78 Accepts]: Start accepts. Automaton has 1004 states and 1360 transitions. Word has length 122 [2024-11-03 13:37:14,797 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 13:37:14,797 INFO L471 AbstractCegarLoop]: Abstraction has 1004 states and 1360 transitions. [2024-11-03 13:37:14,798 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 3 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-03 13:37:14,798 INFO L276 IsEmpty]: Start isEmpty. Operand 1004 states and 1360 transitions. [2024-11-03 13:37:14,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2024-11-03 13:37:14,799 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 13:37:14,799 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 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 13:37:14,803 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (9)] Ended with exit code 0 [2024-11-03 13:37:14,999 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-03 13:37:15,000 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 13:37:15,000 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 13:37:15,000 INFO L85 PathProgramCache]: Analyzing trace with hash 398842362, now seen corresponding path program 1 times [2024-11-03 13:37:15,000 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 13:37:15,000 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1451775979] [2024-11-03 13:37:15,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 13:37:15,001 INFO L173 SolverBuilder]: Constructing external solver with command: bitwuzla [2024-11-03 13:37:15,001 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-03 13:37:15,002 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (exit command is (exit), workingDir is null) [2024-11-03 13:37:15,003 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (10)] Waiting until timeout for monitored process [2024-11-03 13:37:15,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 13:37:15,038 INFO L255 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-03 13:37:15,039 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 13:37:15,058 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2024-11-03 13:37:15,058 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 13:37:15,075 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2024-11-03 13:37:15,075 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 13:37:15,075 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1451775979] [2024-11-03 13:37:15,075 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [1451775979] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-03 13:37:15,075 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-03 13:37:15,075 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2024-11-03 13:37:15,075 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [553857580] [2024-11-03 13:37:15,075 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-03 13:37:15,076 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-03 13:37:15,076 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 13:37:15,076 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-03 13:37:15,076 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-03 13:37:15,076 INFO L87 Difference]: Start difference. First operand 1004 states and 1360 transitions. Second operand has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-03 13:37:15,095 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 13:37:15,095 INFO L93 Difference]: Finished difference Result 2013 states and 2722 transitions. [2024-11-03 13:37:15,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-03 13:37:15,095 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 122 [2024-11-03 13:37:15,095 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 13:37:15,098 INFO L225 Difference]: With dead ends: 2013 [2024-11-03 13:37:15,098 INFO L226 Difference]: Without dead ends: 1017 [2024-11-03 13:37:15,099 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 242 GetRequests, 241 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-03 13:37:15,099 INFO L432 NwaCegarLoop]: 194 mSDtfsCounter, 6 mSDsluCounter, 172 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 366 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-03 13:37:15,099 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 366 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-03 13:37:15,100 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1017 states. [2024-11-03 13:37:15,109 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1017 to 1017. [2024-11-03 13:37:15,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1017 states, 1016 states have (on average 1.3513779527559056) internal successors, (1373), 1016 states have internal predecessors, (1373), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-03 13:37:15,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1017 states to 1017 states and 1373 transitions. [2024-11-03 13:37:15,112 INFO L78 Accepts]: Start accepts. Automaton has 1017 states and 1373 transitions. Word has length 122 [2024-11-03 13:37:15,112 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 13:37:15,112 INFO L471 AbstractCegarLoop]: Abstraction has 1017 states and 1373 transitions. [2024-11-03 13:37:15,112 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-03 13:37:15,112 INFO L276 IsEmpty]: Start isEmpty. Operand 1017 states and 1373 transitions. [2024-11-03 13:37:15,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2024-11-03 13:37:15,114 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 13:37:15,114 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:37:15,116 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (10)] Ended with exit code 0 [2024-11-03 13:37:15,314 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-03 13:37:15,314 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 13:37:15,315 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 13:37:15,315 INFO L85 PathProgramCache]: Analyzing trace with hash -541828422, now seen corresponding path program 1 times [2024-11-03 13:37:15,315 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 13:37:15,315 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [315655938] [2024-11-03 13:37:15,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 13:37:15,315 INFO L173 SolverBuilder]: Constructing external solver with command: bitwuzla [2024-11-03 13:37:15,315 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-03 13:37:15,317 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (exit command is (exit), workingDir is null) [2024-11-03 13:37:15,317 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (11)] Waiting until timeout for monitored process [2024-11-03 13:37:15,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 13:37:15,357 INFO L255 TraceCheckSpWp]: Trace formula consists of 191 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-03 13:37:15,358 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 13:37:15,396 INFO L134 CoverageAnalysis]: Checked inductivity of 193 backedges. 155 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2024-11-03 13:37:15,396 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 13:37:15,440 INFO L134 CoverageAnalysis]: Checked inductivity of 193 backedges. 155 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2024-11-03 13:37:15,440 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 13:37:15,440 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [315655938] [2024-11-03 13:37:15,440 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [315655938] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-03 13:37:15,440 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-03 13:37:15,441 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2024-11-03 13:37:15,441 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2105632054] [2024-11-03 13:37:15,441 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-03 13:37:15,441 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-03 13:37:15,441 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 13:37:15,441 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-03 13:37:15,442 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-03 13:37:15,442 INFO L87 Difference]: Start difference. First operand 1017 states and 1373 transitions. Second operand has 4 states, 4 states have (on average 42.25) internal successors, (169), 4 states have internal predecessors, (169), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-03 13:37:15,632 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 13:37:15,632 INFO L93 Difference]: Finished difference Result 2291 states and 3249 transitions. [2024-11-03 13:37:15,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-03 13:37:15,633 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 42.25) internal successors, (169), 4 states have internal predecessors, (169), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 159 [2024-11-03 13:37:15,633 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 13:37:15,636 INFO L225 Difference]: With dead ends: 2291 [2024-11-03 13:37:15,636 INFO L226 Difference]: Without dead ends: 1295 [2024-11-03 13:37:15,637 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 316 GetRequests, 314 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-03 13:37:15,638 INFO L432 NwaCegarLoop]: 135 mSDtfsCounter, 57 mSDsluCounter, 173 mSDsCounter, 0 mSdLazyCounter, 261 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 308 SdHoareTripleChecker+Invalid, 322 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 261 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-03 13:37:15,638 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [57 Valid, 308 Invalid, 322 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 261 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-03 13:37:15,639 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1295 states. [2024-11-03 13:37:15,650 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1295 to 1295. [2024-11-03 13:37:15,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1295 states, 1294 states have (on average 1.3894899536321483) internal successors, (1798), 1294 states have internal predecessors, (1798), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-03 13:37:15,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1295 states to 1295 states and 1798 transitions. [2024-11-03 13:37:15,654 INFO L78 Accepts]: Start accepts. Automaton has 1295 states and 1798 transitions. Word has length 159 [2024-11-03 13:37:15,654 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 13:37:15,654 INFO L471 AbstractCegarLoop]: Abstraction has 1295 states and 1798 transitions. [2024-11-03 13:37:15,654 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 42.25) internal successors, (169), 4 states have internal predecessors, (169), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-03 13:37:15,654 INFO L276 IsEmpty]: Start isEmpty. Operand 1295 states and 1798 transitions. [2024-11-03 13:37:15,656 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2024-11-03 13:37:15,656 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 13:37:15,656 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:37:15,658 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (11)] Ended with exit code 0 [2024-11-03 13:37:15,856 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-03 13:37:15,857 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 13:37:15,857 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 13:37:15,857 INFO L85 PathProgramCache]: Analyzing trace with hash -640990187, now seen corresponding path program 1 times [2024-11-03 13:37:15,857 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 13:37:15,857 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [129778129] [2024-11-03 13:37:15,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 13:37:15,858 INFO L173 SolverBuilder]: Constructing external solver with command: bitwuzla [2024-11-03 13:37:15,858 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-03 13:37:15,859 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (exit command is (exit), workingDir is null) [2024-11-03 13:37:15,859 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (12)] Waiting until timeout for monitored process [2024-11-03 13:37:15,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 13:37:15,902 INFO L255 TraceCheckSpWp]: Trace formula consists of 237 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-03 13:37:15,904 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 13:37:15,935 INFO L134 CoverageAnalysis]: Checked inductivity of 330 backedges. 222 proven. 0 refuted. 0 times theorem prover too weak. 108 trivial. 0 not checked. [2024-11-03 13:37:15,935 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 13:37:15,963 INFO L134 CoverageAnalysis]: Checked inductivity of 330 backedges. 222 proven. 0 refuted. 0 times theorem prover too weak. 108 trivial. 0 not checked. [2024-11-03 13:37:15,964 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 13:37:15,964 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [129778129] [2024-11-03 13:37:15,964 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [129778129] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-03 13:37:15,964 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-03 13:37:15,964 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2024-11-03 13:37:15,964 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [507389607] [2024-11-03 13:37:15,964 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-03 13:37:15,964 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-03 13:37:15,965 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 13:37:15,965 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-03 13:37:15,965 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-03 13:37:15,965 INFO L87 Difference]: Start difference. First operand 1295 states and 1798 transitions. Second operand has 3 states, 3 states have (on average 45.666666666666664) internal successors, (137), 3 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-03 13:37:16,095 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 13:37:16,095 INFO L93 Difference]: Finished difference Result 2693 states and 3803 transitions. [2024-11-03 13:37:16,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-03 13:37:16,096 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 45.666666666666664) internal successors, (137), 3 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 203 [2024-11-03 13:37:16,096 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 13:37:16,099 INFO L225 Difference]: With dead ends: 2693 [2024-11-03 13:37:16,099 INFO L226 Difference]: Without dead ends: 1419 [2024-11-03 13:37:16,101 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 404 GetRequests, 403 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-03 13:37:16,101 INFO L432 NwaCegarLoop]: 206 mSDtfsCounter, 10 mSDsluCounter, 97 mSDsCounter, 0 mSdLazyCounter, 117 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 303 SdHoareTripleChecker+Invalid, 142 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 117 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-03 13:37:16,101 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 303 Invalid, 142 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 117 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-03 13:37:16,102 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1419 states. [2024-11-03 13:37:16,115 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1419 to 1419. [2024-11-03 13:37:16,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1419 states, 1418 states have (on average 1.369534555712271) internal successors, (1942), 1418 states have internal predecessors, (1942), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-03 13:37:16,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1419 states to 1419 states and 1942 transitions. [2024-11-03 13:37:16,119 INFO L78 Accepts]: Start accepts. Automaton has 1419 states and 1942 transitions. Word has length 203 [2024-11-03 13:37:16,119 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 13:37:16,120 INFO L471 AbstractCegarLoop]: Abstraction has 1419 states and 1942 transitions. [2024-11-03 13:37:16,120 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 45.666666666666664) internal successors, (137), 3 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-03 13:37:16,120 INFO L276 IsEmpty]: Start isEmpty. Operand 1419 states and 1942 transitions. [2024-11-03 13:37:16,122 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2024-11-03 13:37:16,122 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 13:37:16,122 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:37:16,124 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (12)] Ended with exit code 0 [2024-11-03 13:37:16,322 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-03 13:37:16,322 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 13:37:16,323 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 13:37:16,323 INFO L85 PathProgramCache]: Analyzing trace with hash -890289059, now seen corresponding path program 1 times [2024-11-03 13:37:16,323 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 13:37:16,323 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1133047552] [2024-11-03 13:37:16,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 13:37:16,323 INFO L173 SolverBuilder]: Constructing external solver with command: bitwuzla [2024-11-03 13:37:16,323 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-03 13:37:16,324 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (exit command is (exit), workingDir is null) [2024-11-03 13:37:16,325 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (13)] Waiting until timeout for monitored process [2024-11-03 13:37:16,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 13:37:16,375 INFO L255 TraceCheckSpWp]: Trace formula consists of 265 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-03 13:37:16,376 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 13:37:16,418 INFO L134 CoverageAnalysis]: Checked inductivity of 458 backedges. 160 proven. 0 refuted. 0 times theorem prover too weak. 298 trivial. 0 not checked. [2024-11-03 13:37:16,419 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 13:37:16,461 INFO L134 CoverageAnalysis]: Checked inductivity of 458 backedges. 160 proven. 0 refuted. 0 times theorem prover too weak. 298 trivial. 0 not checked. [2024-11-03 13:37:16,461 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 13:37:16,461 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1133047552] [2024-11-03 13:37:16,462 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [1133047552] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-03 13:37:16,462 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-03 13:37:16,462 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2024-11-03 13:37:16,462 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [522362715] [2024-11-03 13:37:16,462 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-03 13:37:16,464 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-03 13:37:16,464 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 13:37:16,464 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-03 13:37:16,464 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-03 13:37:16,464 INFO L87 Difference]: Start difference. First operand 1419 states and 1942 transitions. Second operand has 4 states, 4 states have (on average 38.5) internal successors, (154), 4 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-03 13:37:16,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 13:37:16,647 INFO L93 Difference]: Finished difference Result 2856 states and 4041 transitions. [2024-11-03 13:37:16,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-03 13:37:16,650 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 38.5) internal successors, (154), 4 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 231 [2024-11-03 13:37:16,651 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 13:37:16,654 INFO L225 Difference]: With dead ends: 2856 [2024-11-03 13:37:16,654 INFO L226 Difference]: Without dead ends: 1280 [2024-11-03 13:37:16,656 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 460 GetRequests, 458 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-03 13:37:16,656 INFO L432 NwaCegarLoop]: 138 mSDtfsCounter, 49 mSDsluCounter, 111 mSDsCounter, 0 mSdLazyCounter, 236 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 249 SdHoareTripleChecker+Invalid, 298 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 236 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-03 13:37:16,656 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [49 Valid, 249 Invalid, 298 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 236 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-03 13:37:16,657 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1280 states. [2024-11-03 13:37:16,671 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1280 to 1280. [2024-11-03 13:37:16,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1280 states, 1279 states have (on average 1.3940578577013292) internal successors, (1783), 1279 states have internal predecessors, (1783), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-03 13:37:16,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1280 states to 1280 states and 1783 transitions. [2024-11-03 13:37:16,674 INFO L78 Accepts]: Start accepts. Automaton has 1280 states and 1783 transitions. Word has length 231 [2024-11-03 13:37:16,674 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 13:37:16,675 INFO L471 AbstractCegarLoop]: Abstraction has 1280 states and 1783 transitions. [2024-11-03 13:37:16,675 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 38.5) internal successors, (154), 4 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-03 13:37:16,675 INFO L276 IsEmpty]: Start isEmpty. Operand 1280 states and 1783 transitions. [2024-11-03 13:37:16,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 272 [2024-11-03 13:37:16,677 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 13:37:16,677 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:37:16,679 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (13)] Forceful destruction successful, exit code 0 [2024-11-03 13:37:16,879 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-03 13:37:16,879 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 13:37:16,879 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 13:37:16,880 INFO L85 PathProgramCache]: Analyzing trace with hash -1829254476, now seen corresponding path program 1 times [2024-11-03 13:37:16,880 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 13:37:16,880 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2075715570] [2024-11-03 13:37:16,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 13:37:16,880 INFO L173 SolverBuilder]: Constructing external solver with command: bitwuzla [2024-11-03 13:37:16,880 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-03 13:37:16,882 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (exit command is (exit), workingDir is null) [2024-11-03 13:37:16,882 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (14)] Waiting until timeout for monitored process [2024-11-03 13:37:16,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 13:37:16,936 INFO L255 TraceCheckSpWp]: Trace formula consists of 307 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-03 13:37:16,938 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 13:37:17,013 INFO L134 CoverageAnalysis]: Checked inductivity of 654 backedges. 493 proven. 0 refuted. 0 times theorem prover too weak. 161 trivial. 0 not checked. [2024-11-03 13:37:17,013 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 13:37:17,082 INFO L134 CoverageAnalysis]: Checked inductivity of 654 backedges. 493 proven. 0 refuted. 0 times theorem prover too weak. 161 trivial. 0 not checked. [2024-11-03 13:37:17,083 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 13:37:17,083 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2075715570] [2024-11-03 13:37:17,083 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [2075715570] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-03 13:37:17,083 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-03 13:37:17,083 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2024-11-03 13:37:17,083 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [547193822] [2024-11-03 13:37:17,083 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-03 13:37:17,084 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-03 13:37:17,084 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 13:37:17,085 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-03 13:37:17,085 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-03 13:37:17,085 INFO L87 Difference]: Start difference. First operand 1280 states and 1783 transitions. Second operand has 3 states, 3 states have (on average 51.0) internal successors, (153), 3 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-03 13:37:17,110 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 13:37:17,110 INFO L93 Difference]: Finished difference Result 3591 states and 5060 transitions. [2024-11-03 13:37:17,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-03 13:37:17,110 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 51.0) internal successors, (153), 3 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 271 [2024-11-03 13:37:17,111 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 13:37:17,114 INFO L225 Difference]: With dead ends: 3591 [2024-11-03 13:37:17,114 INFO L226 Difference]: Without dead ends: 1606 [2024-11-03 13:37:17,116 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 540 GetRequests, 539 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-03 13:37:17,117 INFO L432 NwaCegarLoop]: 328 mSDtfsCounter, 132 mSDsluCounter, 186 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 132 SdHoareTripleChecker+Valid, 514 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-03 13:37:17,117 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [132 Valid, 514 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-03 13:37:17,118 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1606 states. [2024-11-03 13:37:17,135 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1606 to 1566. [2024-11-03 13:37:17,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1566 states, 1565 states have (on average 1.392332268370607) internal successors, (2179), 1565 states have internal predecessors, (2179), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-03 13:37:17,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1566 states to 1566 states and 2179 transitions. [2024-11-03 13:37:17,141 INFO L78 Accepts]: Start accepts. Automaton has 1566 states and 2179 transitions. Word has length 271 [2024-11-03 13:37:17,141 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 13:37:17,141 INFO L471 AbstractCegarLoop]: Abstraction has 1566 states and 2179 transitions. [2024-11-03 13:37:17,141 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 51.0) internal successors, (153), 3 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-03 13:37:17,141 INFO L276 IsEmpty]: Start isEmpty. Operand 1566 states and 2179 transitions. [2024-11-03 13:37:17,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 318 [2024-11-03 13:37:17,143 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 13:37:17,143 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 8, 8, 7, 7, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:37:17,146 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (14)] Ended with exit code 0 [2024-11-03 13:37:17,344 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-03 13:37:17,344 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 13:37:17,345 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 13:37:17,345 INFO L85 PathProgramCache]: Analyzing trace with hash 1891635766, now seen corresponding path program 1 times [2024-11-03 13:37:17,345 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 13:37:17,345 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1697865963] [2024-11-03 13:37:17,345 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 13:37:17,345 INFO L173 SolverBuilder]: Constructing external solver with command: bitwuzla [2024-11-03 13:37:17,345 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-03 13:37:17,346 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (exit command is (exit), workingDir is null) [2024-11-03 13:37:17,347 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (15)] Waiting until timeout for monitored process [2024-11-03 13:37:17,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 13:37:17,410 INFO L255 TraceCheckSpWp]: Trace formula consists of 357 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-03 13:37:17,412 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 13:37:17,440 INFO L134 CoverageAnalysis]: Checked inductivity of 954 backedges. 500 proven. 0 refuted. 0 times theorem prover too weak. 454 trivial. 0 not checked. [2024-11-03 13:37:17,440 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 13:37:17,464 INFO L134 CoverageAnalysis]: Checked inductivity of 954 backedges. 500 proven. 0 refuted. 0 times theorem prover too weak. 454 trivial. 0 not checked. [2024-11-03 13:37:17,465 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 13:37:17,465 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1697865963] [2024-11-03 13:37:17,465 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [1697865963] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-03 13:37:17,465 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-03 13:37:17,465 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2024-11-03 13:37:17,465 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1646622531] [2024-11-03 13:37:17,465 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-03 13:37:17,488 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-03 13:37:17,488 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 13:37:17,488 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-03 13:37:17,488 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-03 13:37:17,488 INFO L87 Difference]: Start difference. First operand 1566 states and 2179 transitions. Second operand has 3 states, 3 states have (on average 43.0) internal successors, (129), 3 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-03 13:37:17,594 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 13:37:17,595 INFO L93 Difference]: Finished difference Result 3219 states and 4529 transitions. [2024-11-03 13:37:17,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-03 13:37:17,595 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 43.0) internal successors, (129), 3 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 317 [2024-11-03 13:37:17,595 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 13:37:17,599 INFO L225 Difference]: With dead ends: 3219 [2024-11-03 13:37:17,599 INFO L226 Difference]: Without dead ends: 1674 [2024-11-03 13:37:17,600 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 632 GetRequests, 631 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-03 13:37:17,601 INFO L432 NwaCegarLoop]: 200 mSDtfsCounter, 9 mSDsluCounter, 100 mSDsCounter, 0 mSdLazyCounter, 112 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 300 SdHoareTripleChecker+Invalid, 129 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 112 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-03 13:37:17,601 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 300 Invalid, 129 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 112 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-03 13:37:17,602 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1674 states. [2024-11-03 13:37:17,620 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1674 to 1674. [2024-11-03 13:37:17,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1674 states, 1673 states have (on average 1.3789599521817095) internal successors, (2307), 1673 states have internal predecessors, (2307), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-03 13:37:17,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1674 states to 1674 states and 2307 transitions. [2024-11-03 13:37:17,624 INFO L78 Accepts]: Start accepts. Automaton has 1674 states and 2307 transitions. Word has length 317 [2024-11-03 13:37:17,624 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 13:37:17,624 INFO L471 AbstractCegarLoop]: Abstraction has 1674 states and 2307 transitions. [2024-11-03 13:37:17,624 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 43.0) internal successors, (129), 3 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-03 13:37:17,624 INFO L276 IsEmpty]: Start isEmpty. Operand 1674 states and 2307 transitions. [2024-11-03 13:37:17,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 341 [2024-11-03 13:37:17,627 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 13:37:17,627 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 9, 9, 8, 8, 7, 7, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:37:17,631 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (15)] Ended with exit code 0 [2024-11-03 13:37:17,828 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-03 13:37:17,828 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 13:37:17,829 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 13:37:17,829 INFO L85 PathProgramCache]: Analyzing trace with hash 1795423714, now seen corresponding path program 1 times [2024-11-03 13:37:17,829 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 13:37:17,829 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [734349658] [2024-11-03 13:37:17,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 13:37:17,829 INFO L173 SolverBuilder]: Constructing external solver with command: bitwuzla [2024-11-03 13:37:17,829 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-03 13:37:17,830 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (exit command is (exit), workingDir is null) [2024-11-03 13:37:17,831 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (16)] Waiting until timeout for monitored process [2024-11-03 13:37:17,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 13:37:17,888 INFO L255 TraceCheckSpWp]: Trace formula consists of 383 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-03 13:37:17,890 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 13:37:17,920 INFO L134 CoverageAnalysis]: Checked inductivity of 1151 backedges. 642 proven. 0 refuted. 0 times theorem prover too weak. 509 trivial. 0 not checked. [2024-11-03 13:37:17,920 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 13:37:17,949 INFO L134 CoverageAnalysis]: Checked inductivity of 1151 backedges. 642 proven. 0 refuted. 0 times theorem prover too weak. 509 trivial. 0 not checked. [2024-11-03 13:37:17,949 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 13:37:17,949 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [734349658] [2024-11-03 13:37:17,949 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [734349658] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-03 13:37:17,950 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-03 13:37:17,950 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2024-11-03 13:37:17,950 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [602334143] [2024-11-03 13:37:17,950 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-03 13:37:17,950 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-03 13:37:17,950 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 13:37:17,951 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-03 13:37:17,951 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-03 13:37:17,951 INFO L87 Difference]: Start difference. First operand 1674 states and 2307 transitions. Second operand has 3 states, 3 states have (on average 45.0) internal successors, (135), 3 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-03 13:37:18,055 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 13:37:18,055 INFO L93 Difference]: Finished difference Result 3443 states and 4801 transitions. [2024-11-03 13:37:18,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-03 13:37:18,056 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 45.0) internal successors, (135), 3 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 340 [2024-11-03 13:37:18,056 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 13:37:18,060 INFO L225 Difference]: With dead ends: 3443 [2024-11-03 13:37:18,060 INFO L226 Difference]: Without dead ends: 1790 [2024-11-03 13:37:18,061 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 678 GetRequests, 677 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-03 13:37:18,061 INFO L432 NwaCegarLoop]: 200 mSDtfsCounter, 9 mSDsluCounter, 100 mSDsCounter, 0 mSdLazyCounter, 112 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 300 SdHoareTripleChecker+Invalid, 133 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 112 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-03 13:37:18,061 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 300 Invalid, 133 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 112 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-03 13:37:18,063 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1790 states. [2024-11-03 13:37:18,079 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1790 to 1790. [2024-11-03 13:37:18,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1790 states, 1789 states have (on average 1.3655673560648407) internal successors, (2443), 1789 states have internal predecessors, (2443), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-03 13:37:18,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1790 states to 1790 states and 2443 transitions. [2024-11-03 13:37:18,084 INFO L78 Accepts]: Start accepts. Automaton has 1790 states and 2443 transitions. Word has length 340 [2024-11-03 13:37:18,084 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 13:37:18,084 INFO L471 AbstractCegarLoop]: Abstraction has 1790 states and 2443 transitions. [2024-11-03 13:37:18,084 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 45.0) internal successors, (135), 3 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-03 13:37:18,084 INFO L276 IsEmpty]: Start isEmpty. Operand 1790 states and 2443 transitions. [2024-11-03 13:37:18,087 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 374 [2024-11-03 13:37:18,087 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 13:37:18,088 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 10, 10, 9, 9, 8, 8, 7, 7, 7, 7, 5, 5, 5, 5, 5, 5, 5, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:37:18,090 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (16)] Ended with exit code 0 [2024-11-03 13:37:18,288 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-03 13:37:18,288 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 13:37:18,288 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 13:37:18,289 INFO L85 PathProgramCache]: Analyzing trace with hash 1520948552, now seen corresponding path program 1 times [2024-11-03 13:37:18,289 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 13:37:18,289 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [536001853] [2024-11-03 13:37:18,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 13:37:18,289 INFO L173 SolverBuilder]: Constructing external solver with command: bitwuzla [2024-11-03 13:37:18,289 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-03 13:37:18,290 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (exit command is (exit), workingDir is null) [2024-11-03 13:37:18,291 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (17)] Waiting until timeout for monitored process [2024-11-03 13:37:18,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 13:37:18,356 INFO L255 TraceCheckSpWp]: Trace formula consists of 416 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-03 13:37:18,359 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 13:37:18,419 INFO L134 CoverageAnalysis]: Checked inductivity of 1397 backedges. 876 proven. 26 refuted. 0 times theorem prover too weak. 495 trivial. 0 not checked. [2024-11-03 13:37:18,419 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 13:37:18,479 INFO L134 CoverageAnalysis]: Checked inductivity of 1397 backedges. 876 proven. 26 refuted. 0 times theorem prover too weak. 495 trivial. 0 not checked. [2024-11-03 13:37:18,479 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 13:37:18,479 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [536001853] [2024-11-03 13:37:18,479 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [536001853] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-03 13:37:18,480 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-03 13:37:18,480 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 4 [2024-11-03 13:37:18,480 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1476415480] [2024-11-03 13:37:18,480 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-03 13:37:18,480 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-03 13:37:18,480 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 13:37:18,481 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-03 13:37:18,481 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-03 13:37:18,481 INFO L87 Difference]: Start difference. First operand 1790 states and 2443 transitions. Second operand has 4 states, 4 states have (on average 42.75) internal successors, (171), 4 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-03 13:37:18,657 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 13:37:18,658 INFO L93 Difference]: Finished difference Result 5284 states and 7197 transitions. [2024-11-03 13:37:18,658 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-03 13:37:18,658 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 42.75) internal successors, (171), 4 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 373 [2024-11-03 13:37:18,658 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 13:37:18,666 INFO L225 Difference]: With dead ends: 5284 [2024-11-03 13:37:18,666 INFO L226 Difference]: Without dead ends: 3515 [2024-11-03 13:37:18,668 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 746 GetRequests, 743 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-03 13:37:18,669 INFO L432 NwaCegarLoop]: 292 mSDtfsCounter, 157 mSDsluCounter, 339 mSDsCounter, 0 mSdLazyCounter, 163 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 157 SdHoareTripleChecker+Valid, 631 SdHoareTripleChecker+Invalid, 186 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 163 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-03 13:37:18,669 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [157 Valid, 631 Invalid, 186 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 163 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-03 13:37:18,672 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3515 states. [2024-11-03 13:37:18,727 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3515 to 2385. [2024-11-03 13:37:18,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2385 states, 2384 states have (on average 1.3934563758389262) internal successors, (3322), 2384 states have internal predecessors, (3322), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-03 13:37:18,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2385 states to 2385 states and 3322 transitions. [2024-11-03 13:37:18,734 INFO L78 Accepts]: Start accepts. Automaton has 2385 states and 3322 transitions. Word has length 373 [2024-11-03 13:37:18,734 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 13:37:18,734 INFO L471 AbstractCegarLoop]: Abstraction has 2385 states and 3322 transitions. [2024-11-03 13:37:18,735 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 42.75) internal successors, (171), 4 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-03 13:37:18,735 INFO L276 IsEmpty]: Start isEmpty. Operand 2385 states and 3322 transitions. [2024-11-03 13:37:18,738 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 404 [2024-11-03 13:37:18,738 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 13:37:18,739 INFO L215 NwaCegarLoop]: trace histogram [13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 11, 11, 10, 10, 9, 9, 8, 8, 8, 8, 6, 5, 5, 5, 5, 5, 5, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:37:18,740 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (17)] Forceful destruction successful, exit code 0 [2024-11-03 13:37:18,940 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-03 13:37:18,940 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 13:37:18,941 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 13:37:18,941 INFO L85 PathProgramCache]: Analyzing trace with hash 1630624602, now seen corresponding path program 1 times [2024-11-03 13:37:18,941 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 13:37:18,941 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [671231937] [2024-11-03 13:37:18,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 13:37:18,941 INFO L173 SolverBuilder]: Constructing external solver with command: bitwuzla [2024-11-03 13:37:18,941 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-03 13:37:18,942 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (exit command is (exit), workingDir is null) [2024-11-03 13:37:18,943 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (18)] Waiting until timeout for monitored process [2024-11-03 13:37:19,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 13:37:19,020 INFO L255 TraceCheckSpWp]: Trace formula consists of 447 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-03 13:37:19,024 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 13:37:19,053 INFO L134 CoverageAnalysis]: Checked inductivity of 1671 backedges. 917 proven. 0 refuted. 0 times theorem prover too weak. 754 trivial. 0 not checked. [2024-11-03 13:37:19,053 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 13:37:19,078 INFO L134 CoverageAnalysis]: Checked inductivity of 1671 backedges. 917 proven. 0 refuted. 0 times theorem prover too weak. 754 trivial. 0 not checked. [2024-11-03 13:37:19,078 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 13:37:19,078 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [671231937] [2024-11-03 13:37:19,078 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [671231937] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-03 13:37:19,079 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-03 13:37:19,079 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2024-11-03 13:37:19,079 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [356275064] [2024-11-03 13:37:19,079 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-03 13:37:19,080 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-03 13:37:19,080 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 13:37:19,080 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-03 13:37:19,080 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-03 13:37:19,080 INFO L87 Difference]: Start difference. First operand 2385 states and 3322 transitions. Second operand has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 3 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-03 13:37:19,190 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 13:37:19,190 INFO L93 Difference]: Finished difference Result 4909 states and 6899 transitions. [2024-11-03 13:37:19,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-03 13:37:19,191 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 3 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 403 [2024-11-03 13:37:19,191 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 13:37:19,197 INFO L225 Difference]: With dead ends: 4909 [2024-11-03 13:37:19,197 INFO L226 Difference]: Without dead ends: 2545 [2024-11-03 13:37:19,198 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 804 GetRequests, 803 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-03 13:37:19,199 INFO L432 NwaCegarLoop]: 202 mSDtfsCounter, 9 mSDsluCounter, 100 mSDsCounter, 0 mSdLazyCounter, 105 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 302 SdHoareTripleChecker+Invalid, 115 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 105 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-03 13:37:19,199 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 302 Invalid, 115 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 105 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-03 13:37:19,200 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2545 states. [2024-11-03 13:37:19,221 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2545 to 2465. [2024-11-03 13:37:19,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2465 states, 2464 states have (on average 1.3887987012987013) internal successors, (3422), 2464 states have internal predecessors, (3422), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-03 13:37:19,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2465 states to 2465 states and 3422 transitions. [2024-11-03 13:37:19,227 INFO L78 Accepts]: Start accepts. Automaton has 2465 states and 3422 transitions. Word has length 403 [2024-11-03 13:37:19,227 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 13:37:19,227 INFO L471 AbstractCegarLoop]: Abstraction has 2465 states and 3422 transitions. [2024-11-03 13:37:19,227 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 3 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-03 13:37:19,227 INFO L276 IsEmpty]: Start isEmpty. Operand 2465 states and 3422 transitions. [2024-11-03 13:37:19,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 405 [2024-11-03 13:37:19,229 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 13:37:19,230 INFO L215 NwaCegarLoop]: trace histogram [13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 11, 11, 10, 10, 9, 9, 8, 8, 8, 8, 6, 5, 5, 5, 5, 5, 5, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:37:19,232 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (18)] Ended with exit code 0 [2024-11-03 13:37:19,432 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-03 13:37:19,432 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 13:37:19,432 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 13:37:19,432 INFO L85 PathProgramCache]: Analyzing trace with hash -1347377262, now seen corresponding path program 1 times [2024-11-03 13:37:19,433 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 13:37:19,433 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [994023772] [2024-11-03 13:37:19,433 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 13:37:19,433 INFO L173 SolverBuilder]: Constructing external solver with command: bitwuzla [2024-11-03 13:37:19,433 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-03 13:37:19,434 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (exit command is (exit), workingDir is null) [2024-11-03 13:37:19,435 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (19)] Waiting until timeout for monitored process [2024-11-03 13:37:19,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 13:37:19,499 INFO L255 TraceCheckSpWp]: Trace formula consists of 449 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-03 13:37:19,501 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 13:37:19,532 INFO L134 CoverageAnalysis]: Checked inductivity of 1671 backedges. 984 proven. 0 refuted. 0 times theorem prover too weak. 687 trivial. 0 not checked. [2024-11-03 13:37:19,532 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 13:37:19,561 INFO L134 CoverageAnalysis]: Checked inductivity of 1671 backedges. 984 proven. 0 refuted. 0 times theorem prover too weak. 687 trivial. 0 not checked. [2024-11-03 13:37:19,562 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 13:37:19,562 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [994023772] [2024-11-03 13:37:19,562 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [994023772] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-03 13:37:19,562 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-03 13:37:19,562 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2024-11-03 13:37:19,562 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1509854861] [2024-11-03 13:37:19,562 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-03 13:37:19,562 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-03 13:37:19,563 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 13:37:19,563 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-03 13:37:19,563 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-03 13:37:19,563 INFO L87 Difference]: Start difference. First operand 2465 states and 3422 transitions. Second operand has 3 states, 3 states have (on average 52.666666666666664) internal successors, (158), 3 states have internal predecessors, (158), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-03 13:37:19,684 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 13:37:19,684 INFO L93 Difference]: Finished difference Result 5181 states and 7323 transitions. [2024-11-03 13:37:19,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-03 13:37:19,685 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 52.666666666666664) internal successors, (158), 3 states have internal predecessors, (158), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 404 [2024-11-03 13:37:19,685 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 13:37:19,691 INFO L225 Difference]: With dead ends: 5181 [2024-11-03 13:37:19,691 INFO L226 Difference]: Without dead ends: 2737 [2024-11-03 13:37:19,693 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 806 GetRequests, 805 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-03 13:37:19,693 INFO L432 NwaCegarLoop]: 200 mSDtfsCounter, 9 mSDsluCounter, 100 mSDsCounter, 0 mSdLazyCounter, 119 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 300 SdHoareTripleChecker+Invalid, 143 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 119 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-03 13:37:19,693 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 300 Invalid, 143 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 119 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-03 13:37:19,695 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2737 states. [2024-11-03 13:37:19,718 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2737 to 2737. [2024-11-03 13:37:19,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2737 states, 2736 states have (on average 1.364766081871345) internal successors, (3734), 2736 states have internal predecessors, (3734), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-03 13:37:19,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2737 states to 2737 states and 3734 transitions. [2024-11-03 13:37:19,724 INFO L78 Accepts]: Start accepts. Automaton has 2737 states and 3734 transitions. Word has length 404 [2024-11-03 13:37:19,724 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 13:37:19,724 INFO L471 AbstractCegarLoop]: Abstraction has 2737 states and 3734 transitions. [2024-11-03 13:37:19,724 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 52.666666666666664) internal successors, (158), 3 states have internal predecessors, (158), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-03 13:37:19,724 INFO L276 IsEmpty]: Start isEmpty. Operand 2737 states and 3734 transitions. [2024-11-03 13:37:19,726 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 436 [2024-11-03 13:37:19,726 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 13:37:19,727 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 13, 13, 13, 13, 13, 12, 12, 11, 11, 10, 10, 9, 9, 9, 9, 7, 6, 6, 5, 5, 5, 5, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:37:19,729 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (19)] Forceful destruction successful, exit code 0 [2024-11-03 13:37:19,927 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-03 13:37:19,927 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 13:37:19,927 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 13:37:19,928 INFO L85 PathProgramCache]: Analyzing trace with hash 262066920, now seen corresponding path program 1 times [2024-11-03 13:37:19,928 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 13:37:19,928 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1420422821] [2024-11-03 13:37:19,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 13:37:19,928 INFO L173 SolverBuilder]: Constructing external solver with command: bitwuzla [2024-11-03 13:37:19,928 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-03 13:37:19,929 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (exit command is (exit), workingDir is null) [2024-11-03 13:37:19,931 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (20)] Waiting until timeout for monitored process [2024-11-03 13:37:19,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 13:37:19,997 INFO L255 TraceCheckSpWp]: Trace formula consists of 482 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-03 13:37:20,000 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 13:37:20,034 INFO L134 CoverageAnalysis]: Checked inductivity of 1982 backedges. 1163 proven. 0 refuted. 0 times theorem prover too weak. 819 trivial. 0 not checked. [2024-11-03 13:37:20,034 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 13:37:20,081 INFO L134 CoverageAnalysis]: Checked inductivity of 1982 backedges. 1163 proven. 0 refuted. 0 times theorem prover too weak. 819 trivial. 0 not checked. [2024-11-03 13:37:20,081 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 13:37:20,081 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1420422821] [2024-11-03 13:37:20,081 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [1420422821] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-03 13:37:20,081 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-03 13:37:20,081 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2024-11-03 13:37:20,081 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1531173173] [2024-11-03 13:37:20,081 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-03 13:37:20,082 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-03 13:37:20,082 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 13:37:20,082 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-03 13:37:20,082 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-03 13:37:20,082 INFO L87 Difference]: Start difference. First operand 2737 states and 3734 transitions. Second operand has 3 states, 3 states have (on average 55.0) internal successors, (165), 3 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-03 13:37:20,193 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 13:37:20,193 INFO L93 Difference]: Finished difference Result 5741 states and 7979 transitions. [2024-11-03 13:37:20,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-03 13:37:20,194 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 3 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 435 [2024-11-03 13:37:20,194 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 13:37:20,207 INFO L225 Difference]: With dead ends: 5741 [2024-11-03 13:37:20,207 INFO L226 Difference]: Without dead ends: 3025 [2024-11-03 13:37:20,210 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 868 GetRequests, 867 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-03 13:37:20,210 INFO L432 NwaCegarLoop]: 200 mSDtfsCounter, 9 mSDsluCounter, 100 mSDsCounter, 0 mSdLazyCounter, 121 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 300 SdHoareTripleChecker+Invalid, 147 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 121 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-03 13:37:20,210 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 300 Invalid, 147 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 121 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-03 13:37:20,213 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3025 states. [2024-11-03 13:37:20,238 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3025 to 3025. [2024-11-03 13:37:20,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3025 states, 3024 states have (on average 1.3432539682539681) internal successors, (4062), 3024 states have internal predecessors, (4062), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-03 13:37:20,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3025 states to 3025 states and 4062 transitions. [2024-11-03 13:37:20,247 INFO L78 Accepts]: Start accepts. Automaton has 3025 states and 4062 transitions. Word has length 435 [2024-11-03 13:37:20,248 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 13:37:20,248 INFO L471 AbstractCegarLoop]: Abstraction has 3025 states and 4062 transitions. [2024-11-03 13:37:20,248 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 3 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-03 13:37:20,248 INFO L276 IsEmpty]: Start isEmpty. Operand 3025 states and 4062 transitions. [2024-11-03 13:37:20,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 469 [2024-11-03 13:37:20,254 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 13:37:20,255 INFO L215 NwaCegarLoop]: trace histogram [15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 14, 14, 14, 14, 14, 13, 13, 12, 12, 11, 11, 10, 10, 10, 10, 8, 7, 7, 6, 6, 5, 5, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:37:20,260 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (20)] Forceful destruction successful, exit code 0 [2024-11-03 13:37:20,455 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-03 13:37:20,455 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 13:37:20,455 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 13:37:20,456 INFO L85 PathProgramCache]: Analyzing trace with hash 1844445303, now seen corresponding path program 1 times [2024-11-03 13:37:20,456 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 13:37:20,456 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2028960113] [2024-11-03 13:37:20,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 13:37:20,456 INFO L173 SolverBuilder]: Constructing external solver with command: bitwuzla [2024-11-03 13:37:20,456 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-03 13:37:20,458 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (exit command is (exit), workingDir is null) [2024-11-03 13:37:20,458 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (21)] Waiting until timeout for monitored process [2024-11-03 13:37:20,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 13:37:20,530 INFO L255 TraceCheckSpWp]: Trace formula consists of 517 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-03 13:37:20,533 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 13:37:20,569 INFO L134 CoverageAnalysis]: Checked inductivity of 2332 backedges. 1352 proven. 0 refuted. 0 times theorem prover too weak. 980 trivial. 0 not checked. [2024-11-03 13:37:20,569 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 13:37:20,604 INFO L134 CoverageAnalysis]: Checked inductivity of 2332 backedges. 1352 proven. 0 refuted. 0 times theorem prover too weak. 980 trivial. 0 not checked. [2024-11-03 13:37:20,605 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 13:37:20,605 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2028960113] [2024-11-03 13:37:20,605 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [2028960113] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-03 13:37:20,605 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-03 13:37:20,605 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2024-11-03 13:37:20,605 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [64240554] [2024-11-03 13:37:20,605 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-03 13:37:20,606 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-03 13:37:20,606 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 13:37:20,606 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-03 13:37:20,606 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-03 13:37:20,607 INFO L87 Difference]: Start difference. First operand 3025 states and 4062 transitions. Second operand has 3 states, 3 states have (on average 57.333333333333336) internal successors, (172), 3 states have internal predecessors, (172), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-03 13:37:20,715 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 13:37:20,715 INFO L93 Difference]: Finished difference Result 5649 states and 7514 transitions. [2024-11-03 13:37:20,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-03 13:37:20,717 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 57.333333333333336) internal successors, (172), 3 states have internal predecessors, (172), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 468 [2024-11-03 13:37:20,717 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 13:37:20,721 INFO L225 Difference]: With dead ends: 5649 [2024-11-03 13:37:20,721 INFO L226 Difference]: Without dead ends: 2420 [2024-11-03 13:37:20,723 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 934 GetRequests, 933 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-03 13:37:20,724 INFO L432 NwaCegarLoop]: 200 mSDtfsCounter, 9 mSDsluCounter, 100 mSDsCounter, 0 mSdLazyCounter, 123 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 300 SdHoareTripleChecker+Invalid, 151 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 123 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-03 13:37:20,724 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 300 Invalid, 151 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 123 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-03 13:37:20,729 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2420 states. [2024-11-03 13:37:20,748 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2420 to 2187. [2024-11-03 13:37:20,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2187 states, 2186 states have (on average 1.2602927721866424) internal successors, (2755), 2186 states have internal predecessors, (2755), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-03 13:37:20,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2187 states to 2187 states and 2755 transitions. [2024-11-03 13:37:20,752 INFO L78 Accepts]: Start accepts. Automaton has 2187 states and 2755 transitions. Word has length 468 [2024-11-03 13:37:20,752 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 13:37:20,752 INFO L471 AbstractCegarLoop]: Abstraction has 2187 states and 2755 transitions. [2024-11-03 13:37:20,752 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 57.333333333333336) internal successors, (172), 3 states have internal predecessors, (172), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-03 13:37:20,752 INFO L276 IsEmpty]: Start isEmpty. Operand 2187 states and 2755 transitions. [2024-11-03 13:37:20,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 507 [2024-11-03 13:37:20,754 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 13:37:20,755 INFO L215 NwaCegarLoop]: trace histogram [16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 15, 15, 15, 15, 15, 14, 14, 13, 13, 12, 12, 11, 11, 11, 11, 9, 8, 8, 7, 7, 6, 6, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:37:20,758 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (21)] Forceful destruction successful, exit code 0 [2024-11-03 13:37:20,957 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-03 13:37:20,957 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 13:37:20,957 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 13:37:20,957 INFO L85 PathProgramCache]: Analyzing trace with hash 684333983, now seen corresponding path program 1 times [2024-11-03 13:37:20,957 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 13:37:20,957 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1543350958] [2024-11-03 13:37:20,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 13:37:20,958 INFO L173 SolverBuilder]: Constructing external solver with command: bitwuzla [2024-11-03 13:37:20,958 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-03 13:37:20,959 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (exit command is (exit), workingDir is null) [2024-11-03 13:37:20,959 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (22)] Waiting until timeout for monitored process [2024-11-03 13:37:21,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 13:37:21,032 INFO L255 TraceCheckSpWp]: Trace formula consists of 556 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-03 13:37:21,035 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 13:37:21,101 INFO L134 CoverageAnalysis]: Checked inductivity of 2728 backedges. 1309 proven. 26 refuted. 0 times theorem prover too weak. 1393 trivial. 0 not checked. [2024-11-03 13:37:21,101 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 13:37:21,161 INFO L134 CoverageAnalysis]: Checked inductivity of 2728 backedges. 1309 proven. 26 refuted. 0 times theorem prover too weak. 1393 trivial. 0 not checked. [2024-11-03 13:37:21,162 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 13:37:21,162 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1543350958] [2024-11-03 13:37:21,162 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [1543350958] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-03 13:37:21,162 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-03 13:37:21,162 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2024-11-03 13:37:21,162 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [59020152] [2024-11-03 13:37:21,162 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-03 13:37:21,163 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-03 13:37:21,163 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 13:37:21,164 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-03 13:37:21,164 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-03 13:37:21,164 INFO L87 Difference]: Start difference. First operand 2187 states and 2755 transitions. Second operand has 6 states, 6 states have (on average 46.5) internal successors, (279), 6 states have internal predecessors, (279), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-03 13:37:21,431 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 13:37:21,431 INFO L93 Difference]: Finished difference Result 2878 states and 3609 transitions. [2024-11-03 13:37:21,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-03 13:37:21,432 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 46.5) internal successors, (279), 6 states have internal predecessors, (279), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 506 [2024-11-03 13:37:21,432 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 13:37:21,432 INFO L225 Difference]: With dead ends: 2878 [2024-11-03 13:37:21,432 INFO L226 Difference]: Without dead ends: 0 [2024-11-03 13:37:21,434 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1016 GetRequests, 1009 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2024-11-03 13:37:21,434 INFO L432 NwaCegarLoop]: 184 mSDtfsCounter, 186 mSDsluCounter, 401 mSDsCounter, 0 mSdLazyCounter, 401 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 186 SdHoareTripleChecker+Valid, 585 SdHoareTripleChecker+Invalid, 453 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 401 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-03 13:37:21,434 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [186 Valid, 585 Invalid, 453 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 401 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-03 13:37:21,434 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-03 13:37:21,435 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-03 13:37:21,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-03 13:37:21,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-03 13:37:21,435 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 506 [2024-11-03 13:37:21,435 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 13:37:21,435 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-03 13:37:21,435 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 46.5) internal successors, (279), 6 states have internal predecessors, (279), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-03 13:37:21,435 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-03 13:37:21,435 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-03 13:37:21,437 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-03 13:37:21,440 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (22)] Ended with exit code 0 [2024-11-03 13:37:21,638 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-03 13:37:21,641 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-03 13:37:21,642 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-03 13:37:22,144 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-03 13:37:22,156 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.11 01:37:22 BoogieIcfgContainer [2024-11-03 13:37:22,156 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-03 13:37:22,157 INFO L158 Benchmark]: Toolchain (without parser) took 11767.79ms. Allocated memory was 219.2MB in the beginning and 481.3MB in the end (delta: 262.1MB). Free memory was 167.4MB in the beginning and 305.5MB in the end (delta: -138.1MB). Peak memory consumption was 124.8MB. Max. memory is 8.0GB. [2024-11-03 13:37:22,157 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 219.2MB. Free memory is still 166.5MB. There was no memory consumed. Max. memory is 8.0GB. [2024-11-03 13:37:22,157 INFO L158 Benchmark]: CACSL2BoogieTranslator took 257.63ms. Allocated memory is still 219.2MB. Free memory was 167.4MB in the beginning and 149.2MB in the end (delta: 18.2MB). Peak memory consumption was 17.8MB. Max. memory is 8.0GB. [2024-11-03 13:37:22,157 INFO L158 Benchmark]: Boogie Procedure Inliner took 30.27ms. Allocated memory is still 219.2MB. Free memory was 148.9MB in the beginning and 146.4MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2024-11-03 13:37:22,157 INFO L158 Benchmark]: Boogie Preprocessor took 37.09ms. Allocated memory is still 219.2MB. Free memory was 146.4MB in the beginning and 142.9MB in the end (delta: 3.5MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2024-11-03 13:37:22,157 INFO L158 Benchmark]: RCFGBuilder took 511.93ms. Allocated memory was 219.2MB in the beginning and 400.6MB in the end (delta: 181.4MB). Free memory was 142.9MB in the beginning and 341.6MB in the end (delta: -198.7MB). Peak memory consumption was 19.4MB. Max. memory is 8.0GB. [2024-11-03 13:37:22,158 INFO L158 Benchmark]: TraceAbstraction took 10926.61ms. Allocated memory was 400.6MB in the beginning and 481.3MB in the end (delta: 80.7MB). Free memory was 340.6MB in the beginning and 305.5MB in the end (delta: 35.1MB). Peak memory consumption was 115.9MB. Max. memory is 8.0GB. [2024-11-03 13:37:22,158 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 219.2MB. Free memory is still 166.5MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 257.63ms. Allocated memory is still 219.2MB. Free memory was 167.4MB in the beginning and 149.2MB in the end (delta: 18.2MB). Peak memory consumption was 17.8MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 30.27ms. Allocated memory is still 219.2MB. Free memory was 148.9MB in the beginning and 146.4MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 37.09ms. Allocated memory is still 219.2MB. Free memory was 146.4MB in the beginning and 142.9MB in the end (delta: 3.5MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * RCFGBuilder took 511.93ms. Allocated memory was 219.2MB in the beginning and 400.6MB in the end (delta: 181.4MB). Free memory was 142.9MB in the beginning and 341.6MB in the end (delta: -198.7MB). Peak memory consumption was 19.4MB. Max. memory is 8.0GB. * TraceAbstraction took 10926.61ms. Allocated memory was 400.6MB in the beginning and 481.3MB in the end (delta: 80.7MB). Free memory was 340.6MB in the beginning and 305.5MB in the end (delta: 35.1MB). Peak memory consumption was 115.9MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 681]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 140 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 10.4s, OverallIterations: 21, TraceHistogramMax: 16, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 2.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1132 SdHoareTripleChecker+Valid, 2.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1132 mSDsluCounter, 7815 SdHoareTripleChecker+Invalid, 1.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 3323 mSDsCounter, 451 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2522 IncrementalHoareTripleChecker+Invalid, 2973 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 451 mSolverCounterUnsat, 4492 mSDtfsCounter, 2522 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 9894 GetRequests, 9862 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=3025occurred in iteration=19, InterpolantAutomatonStates: 72, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 21 MinimizatonAttempts, 1483 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 1.7s InterpolantComputationTime, 4964 NumberOfCodeBlocks, 4964 NumberOfCodeBlocksAsserted, 21 NumberOfCheckSat, 9886 ConstructedInterpolants, 0 QuantifiedInterpolants, 12852 SizeOfPredicates, 2 NumberOfNonLiveVariables, 5704 ConjunctsInSsa, 47 ConjunctsInUnsatCore, 42 InterpolantComputations, 38 PerfectInterpolantSequences, 32078/32182 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 109]: Loop Invariant Derived loop invariant: ((((((((((((((((((((((((blastFlag == 2) && (s__s3__tmp__next_state___0 == 8576)) && (8592 == s__state)) || (((blastFlag == 2) && (s__s3__tmp__next_state___0 == 8576)) && (8608 == s__state))) || (((blastFlag == 2) && (8656 == s__state)) && (s__s3__tmp__next_state___0 != 8640))) || (((blastFlag == 2) && (8466 == s__state)) && (s__s3__tmp__next_state___0 != 8640))) || (((blastFlag == 2) && (s__s3__tmp__next_state___0 == 8576)) && (8640 == s__state))) || ((blastFlag == 2) && (8512 == s__state))) || ((blastFlag == 3) && (0 != s__hit))) || (((blastFlag != 4) && (8608 == s__state)) && (0 != s__hit))) || (((8448 == s__state) && (blastFlag == 2)) && (s__s3__tmp__next_state___0 == 8576))) || (((blastFlag != 4) && (8640 == s__state)) && (0 != s__hit))) || ((blastFlag == 2) && (8560 == s__state))) || (((8448 == s__state) && (s__s3__tmp__next_state___0 == 3)) && (blastFlag == 3))) || ((blastFlag == 0) && (8464 == s__state))) || (((8672 == s__state) && (s__s3__tmp__next_state___0 != 8640)) && (blastFlag == 3))) || ((blastFlag == 1) && (8496 == s__state))) || (((blastFlag != 4) && (0 != s__hit)) && (8592 == s__state))) || (3 == s__state)) || ((blastFlag == 2) && (0 != s__hit))) || ((blastFlag == 2) && (8544 == s__state))) || (((blastFlag == 2) && (s__s3__tmp__next_state___0 != 8640)) && (8496 == s__state))) || ((blastFlag == 2) && (8528 == s__state))) || (((blastFlag == 2) && (s__s3__tmp__next_state___0 == 8576)) && (8576 == s__state))) RESULT: Ultimate proved your program to be correct! [2024-11-03 13:37:22,178 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...