/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 'cvc5 --incremental --print-success --lang smt' -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf -i ../../../trunk/examples/svcomp/bitvector/s3_srvr_2a.BV.c.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.5-dev-b75d321-m [2024-11-03 05:42:25,450 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-03 05:42:25,530 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 05:42:25,537 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-03 05:42:25,537 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-03 05:42:25,557 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-03 05:42:25,557 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-03 05:42:25,558 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-03 05:42:25,558 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-03 05:42:25,558 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-03 05:42:25,559 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-03 05:42:25,559 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-03 05:42:25,560 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-03 05:42:25,560 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-03 05:42:25,560 INFO L153 SettingsManager]: * Use SBE=true [2024-11-03 05:42:25,561 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-03 05:42:25,561 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-03 05:42:25,561 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-03 05:42:25,561 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-03 05:42:25,562 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-03 05:42:25,562 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-03 05:42:25,565 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-03 05:42:25,565 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-03 05:42:25,565 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-03 05:42:25,566 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-03 05:42:25,566 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-03 05:42:25,568 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-03 05:42:25,568 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-03 05:42:25,568 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-03 05:42:25,568 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-03 05:42:25,569 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-03 05:42:25,569 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-03 05:42:25,569 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-03 05:42:25,569 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-03 05:42:25,570 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-03 05:42:25,570 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-03 05:42:25,570 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-03 05:42:25,571 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-03 05:42:25,571 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-11-03 05:42:25,571 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-03 05:42:25,571 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-03 05:42:25,572 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-03 05:42:25,572 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-03 05:42:25,572 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-03 05:42:25,572 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Allow undefined functions -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Command for external solver -> cvc5 --incremental --print-success --lang smt [2024-11-03 05:42:25,803 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-03 05:42:25,827 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-03 05:42:25,830 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-03 05:42:25,831 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-03 05:42:25,832 INFO L274 PluginConnector]: CDTParser initialized [2024-11-03 05:42:25,833 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/bitvector/s3_srvr_2a.BV.c.cil.c [2024-11-03 05:42:27,241 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-03 05:42:27,429 INFO L384 CDTParser]: Found 1 translation units. [2024-11-03 05:42:27,430 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/bitvector/s3_srvr_2a.BV.c.cil.c [2024-11-03 05:42:27,456 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/610d0c62d/ca7f06e02bfb4f6aa9f1aa7202838cfe/FLAGdfe8badfa [2024-11-03 05:42:27,815 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/610d0c62d/ca7f06e02bfb4f6aa9f1aa7202838cfe [2024-11-03 05:42:27,818 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-03 05:42:27,819 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-11-03 05:42:27,821 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-03 05:42:27,821 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-03 05:42:27,826 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-03 05:42:27,827 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 05:42:27" (1/1) ... [2024-11-03 05:42:27,828 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@581abc85 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:42:27, skipping insertion in model container [2024-11-03 05:42:27,828 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 05:42:27" (1/1) ... [2024-11-03 05:42:27,885 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-03 05:42:28,156 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_2a.BV.c.cil.c[44872,44885] [2024-11-03 05:42:28,166 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-03 05:42:28,182 INFO L200 MainTranslator]: Completed pre-run [2024-11-03 05:42:28,231 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_2a.BV.c.cil.c[44872,44885] [2024-11-03 05:42:28,238 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-03 05:42:28,254 INFO L204 MainTranslator]: Completed translation [2024-11-03 05:42:28,255 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:42:28 WrapperNode [2024-11-03 05:42:28,255 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-03 05:42:28,256 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-03 05:42:28,256 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-03 05:42:28,256 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-03 05:42:28,261 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:42:28" (1/1) ... [2024-11-03 05:42:28,271 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:42:28" (1/1) ... [2024-11-03 05:42:28,302 INFO L138 Inliner]: procedures = 15, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 525 [2024-11-03 05:42:28,303 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-03 05:42:28,303 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-03 05:42:28,303 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-03 05:42:28,304 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-03 05:42:28,315 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:42:28" (1/1) ... [2024-11-03 05:42:28,316 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:42:28" (1/1) ... [2024-11-03 05:42:28,325 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:42:28" (1/1) ... [2024-11-03 05:42:28,341 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 05:42:28,341 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:42:28" (1/1) ... [2024-11-03 05:42:28,341 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:42:28" (1/1) ... [2024-11-03 05:42:28,353 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:42:28" (1/1) ... [2024-11-03 05:42:28,366 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:42:28" (1/1) ... [2024-11-03 05:42:28,368 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:42:28" (1/1) ... [2024-11-03 05:42:28,374 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:42:28" (1/1) ... [2024-11-03 05:42:28,378 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-03 05:42:28,379 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-03 05:42:28,379 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-03 05:42:28,379 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-03 05:42:28,380 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:42:28" (1/1) ... [2024-11-03 05:42:28,389 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-03 05:42:28,402 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-03 05:42:28,418 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 05:42:28,421 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 05:42:28,452 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-03 05:42:28,452 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-03 05:42:28,453 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-03 05:42:28,453 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-03 05:42:28,584 INFO L238 CfgBuilder]: Building ICFG [2024-11-03 05:42:28,586 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-03 05:42:28,608 WARN L781 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2024-11-03 05:42:29,173 INFO L735 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##90: assume false; [2024-11-03 05:42:29,173 INFO L735 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##91: assume !false; [2024-11-03 05:42:29,224 INFO L? ?]: Removed 118 outVars from TransFormulas that were not future-live. [2024-11-03 05:42:29,224 INFO L287 CfgBuilder]: Performing block encoding [2024-11-03 05:42:29,242 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-03 05:42:29,242 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-03 05:42:29,243 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 05:42:29 BoogieIcfgContainer [2024-11-03 05:42:29,243 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-03 05:42:29,246 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-03 05:42:29,246 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-03 05:42:29,249 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-03 05:42:29,249 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 05:42:27" (1/3) ... [2024-11-03 05:42:29,250 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d165376 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 05:42:29, skipping insertion in model container [2024-11-03 05:42:29,250 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:42:28" (2/3) ... [2024-11-03 05:42:29,250 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d165376 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 05:42:29, skipping insertion in model container [2024-11-03 05:42:29,250 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 05:42:29" (3/3) ... [2024-11-03 05:42:29,253 INFO L112 eAbstractionObserver]: Analyzing ICFG s3_srvr_2a.BV.c.cil.c [2024-11-03 05:42:29,269 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-03 05:42:29,270 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-03 05:42:29,324 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-03 05:42:29,329 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;@60118f53, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-03 05:42:29,329 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-03 05:42:29,333 INFO L276 IsEmpty]: Start isEmpty. Operand has 138 states, 136 states have (on average 1.7426470588235294) internal successors, (237), 137 states have internal predecessors, (237), 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 05:42:29,339 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2024-11-03 05:42:29,339 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 05:42:29,340 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 05:42:29,340 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 05:42:29,345 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 05:42:29,345 INFO L85 PathProgramCache]: Analyzing trace with hash 1632002022, now seen corresponding path program 1 times [2024-11-03 05:42:29,353 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 05:42:29,353 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [790911291] [2024-11-03 05:42:29,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 05:42:29,355 INFO L173 SolverBuilder]: Constructing external solver with command: cvc5 --incremental --print-success --lang smt [2024-11-03 05:42:29,356 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 [2024-11-03 05:42:29,359 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-03 05:42:29,360 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process [2024-11-03 05:42:29,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 05:42:29,477 INFO L255 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-03 05:42:29,484 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 05:42:29,670 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 05:42:29,671 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 05:42:29,806 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 05:42:29,807 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 05:42:29,814 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [790911291] [2024-11-03 05:42:29,815 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [790911291] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-03 05:42:29,815 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-03 05:42:29,816 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2024-11-03 05:42:29,817 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1190110745] [2024-11-03 05:42:29,818 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-03 05:42:29,822 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-03 05:42:29,822 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 05:42:29,842 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-03 05:42:29,843 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-03 05:42:29,846 INFO L87 Difference]: Start difference. First operand has 138 states, 136 states have (on average 1.7426470588235294) internal successors, (237), 137 states have internal predecessors, (237), 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 4 states, 4 states have (on average 21.0) internal successors, (84), 4 states have internal predecessors, (84), 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 05:42:30,283 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 05:42:30,283 INFO L93 Difference]: Finished difference Result 322 states and 562 transitions. [2024-11-03 05:42:30,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-03 05:42:30,286 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 21.0) internal successors, (84), 4 states have internal predecessors, (84), 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 05:42:30,287 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 05:42:30,298 INFO L225 Difference]: With dead ends: 322 [2024-11-03 05:42:30,298 INFO L226 Difference]: Without dead ends: 167 [2024-11-03 05:42:30,303 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 84 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 05:42:30,306 INFO L432 NwaCegarLoop]: 222 mSDtfsCounter, 36 mSDsluCounter, 235 mSDsCounter, 0 mSdLazyCounter, 330 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 457 SdHoareTripleChecker+Invalid, 364 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 330 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-03 05:42:30,307 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 457 Invalid, 364 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 330 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-03 05:42:30,331 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 167 states. [2024-11-03 05:42:30,356 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 167 to 167. [2024-11-03 05:42:30,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 167 states, 166 states have (on average 1.5602409638554218) internal successors, (259), 166 states have internal predecessors, (259), 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 05:42:30,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167 states to 167 states and 259 transitions. [2024-11-03 05:42:30,362 INFO L78 Accepts]: Start accepts. Automaton has 167 states and 259 transitions. Word has length 44 [2024-11-03 05:42:30,362 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 05:42:30,365 INFO L471 AbstractCegarLoop]: Abstraction has 167 states and 259 transitions. [2024-11-03 05:42:30,365 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.0) internal successors, (84), 4 states have internal predecessors, (84), 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 05:42:30,366 INFO L276 IsEmpty]: Start isEmpty. Operand 167 states and 259 transitions. [2024-11-03 05:42:30,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2024-11-03 05:42:30,368 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 05:42:30,368 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 05:42:30,373 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (2)] Forceful destruction successful, exit code 0 [2024-11-03 05:42:30,571 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt [2024-11-03 05:42:30,572 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 05:42:30,572 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 05:42:30,573 INFO L85 PathProgramCache]: Analyzing trace with hash 2033157093, now seen corresponding path program 1 times [2024-11-03 05:42:30,573 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 05:42:30,573 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1786812637] [2024-11-03 05:42:30,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 05:42:30,573 INFO L173 SolverBuilder]: Constructing external solver with command: cvc5 --incremental --print-success --lang smt [2024-11-03 05:42:30,573 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 [2024-11-03 05:42:30,577 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-03 05:42:30,579 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (3)] Waiting until timeout for monitored process [2024-11-03 05:42:30,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 05:42:30,666 INFO L255 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 21 conjuncts are in the unsatisfiable core [2024-11-03 05:42:30,673 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 05:42:30,882 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 9 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-03 05:42:30,882 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 05:42:30,960 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 05:42:30,961 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 05:42:30,961 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1786812637] [2024-11-03 05:42:30,961 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [1786812637] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-03 05:42:30,961 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-03 05:42:30,962 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2024-11-03 05:42:30,962 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1552795586] [2024-11-03 05:42:30,962 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-03 05:42:30,963 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-03 05:42:30,964 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 05:42:30,964 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-03 05:42:30,964 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-03 05:42:30,965 INFO L87 Difference]: Start difference. First operand 167 states and 259 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 05:42:31,007 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 05:42:31,007 INFO L93 Difference]: Finished difference Result 312 states and 491 transitions. [2024-11-03 05:42:31,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-03 05:42:31,008 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 05:42:31,008 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 05:42:31,013 INFO L225 Difference]: With dead ends: 312 [2024-11-03 05:42:31,014 INFO L226 Difference]: Without dead ends: 310 [2024-11-03 05:42:31,018 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 114 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-03 05:42:31,019 INFO L432 NwaCegarLoop]: 165 mSDtfsCounter, 127 mSDsluCounter, 149 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 127 SdHoareTripleChecker+Valid, 314 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-03 05:42:31,019 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [127 Valid, 314 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-03 05:42:31,021 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 310 states. [2024-11-03 05:42:31,049 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 310 to 310. [2024-11-03 05:42:31,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 310 states, 309 states have (on average 1.5825242718446602) internal successors, (489), 309 states have internal predecessors, (489), 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 05:42:31,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 310 states to 310 states and 489 transitions. [2024-11-03 05:42:31,053 INFO L78 Accepts]: Start accepts. Automaton has 310 states and 489 transitions. Word has length 60 [2024-11-03 05:42:31,053 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 05:42:31,054 INFO L471 AbstractCegarLoop]: Abstraction has 310 states and 489 transitions. [2024-11-03 05:42:31,054 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 05:42:31,054 INFO L276 IsEmpty]: Start isEmpty. Operand 310 states and 489 transitions. [2024-11-03 05:42:31,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2024-11-03 05:42:31,058 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 05:42:31,058 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, 1, 1] [2024-11-03 05:42:31,062 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (3)] Forceful destruction successful, exit code 0 [2024-11-03 05:42:31,259 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt [2024-11-03 05:42:31,260 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 05:42:31,260 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 05:42:31,260 INFO L85 PathProgramCache]: Analyzing trace with hash 551170296, now seen corresponding path program 1 times [2024-11-03 05:42:31,260 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 05:42:31,261 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [4272291] [2024-11-03 05:42:31,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 05:42:31,261 INFO L173 SolverBuilder]: Constructing external solver with command: cvc5 --incremental --print-success --lang smt [2024-11-03 05:42:31,261 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 [2024-11-03 05:42:31,264 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-03 05:42:31,265 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2024-11-03 05:42:31,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 05:42:31,363 INFO L255 TraceCheckSpWp]: Trace formula consists of 110 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-03 05:42:31,367 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 05:42:31,406 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 38 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-03 05:42:31,407 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 05:42:31,441 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 38 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-03 05:42:31,442 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 05:42:31,442 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [4272291] [2024-11-03 05:42:31,442 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [4272291] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-03 05:42:31,442 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-03 05:42:31,442 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2024-11-03 05:42:31,442 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [89126450] [2024-11-03 05:42:31,443 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-03 05:42:31,443 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-03 05:42:31,443 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 05:42:31,444 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-03 05:42:31,444 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-03 05:42:31,445 INFO L87 Difference]: Start difference. First operand 310 states and 489 transitions. Second operand has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 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 05:42:31,476 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 05:42:31,476 INFO L93 Difference]: Finished difference Result 743 states and 1183 transitions. [2024-11-03 05:42:31,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-03 05:42:31,477 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 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 83 [2024-11-03 05:42:31,477 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 05:42:31,480 INFO L225 Difference]: With dead ends: 743 [2024-11-03 05:42:31,480 INFO L226 Difference]: Without dead ends: 452 [2024-11-03 05:42:31,483 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 164 GetRequests, 163 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 05:42:31,484 INFO L432 NwaCegarLoop]: 183 mSDtfsCounter, 132 mSDsluCounter, 163 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 132 SdHoareTripleChecker+Valid, 346 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-03 05:42:31,485 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [132 Valid, 346 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-03 05:42:31,489 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 452 states. [2024-11-03 05:42:31,520 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 452 to 452. [2024-11-03 05:42:31,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 452 states, 451 states have (on average 1.583148558758315) internal successors, (714), 451 states have internal predecessors, (714), 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 05:42:31,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 452 states to 452 states and 714 transitions. [2024-11-03 05:42:31,523 INFO L78 Accepts]: Start accepts. Automaton has 452 states and 714 transitions. Word has length 83 [2024-11-03 05:42:31,525 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 05:42:31,525 INFO L471 AbstractCegarLoop]: Abstraction has 452 states and 714 transitions. [2024-11-03 05:42:31,526 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 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 05:42:31,526 INFO L276 IsEmpty]: Start isEmpty. Operand 452 states and 714 transitions. [2024-11-03 05:42:31,531 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2024-11-03 05:42:31,532 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 05:42:31,532 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, 1, 1] [2024-11-03 05:42:31,535 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (4)] Ended with exit code 0 [2024-11-03 05:42:31,732 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt [2024-11-03 05:42:31,733 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 05:42:31,734 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 05:42:31,734 INFO L85 PathProgramCache]: Analyzing trace with hash -1135009542, now seen corresponding path program 1 times [2024-11-03 05:42:31,734 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 05:42:31,734 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1504325494] [2024-11-03 05:42:31,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 05:42:31,734 INFO L173 SolverBuilder]: Constructing external solver with command: cvc5 --incremental --print-success --lang smt [2024-11-03 05:42:31,735 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 [2024-11-03 05:42:31,738 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-03 05:42:31,739 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (5)] Waiting until timeout for monitored process [2024-11-03 05:42:31,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 05:42:31,810 INFO L255 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-03 05:42:31,812 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 05:42:31,845 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-03 05:42:31,846 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 05:42:31,883 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-03 05:42:31,883 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 05:42:31,884 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1504325494] [2024-11-03 05:42:31,884 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [1504325494] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-03 05:42:31,884 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-03 05:42:31,884 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2024-11-03 05:42:31,884 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1132094781] [2024-11-03 05:42:31,885 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-03 05:42:31,885 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-03 05:42:31,885 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 05:42:31,886 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-03 05:42:31,886 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-03 05:42:31,886 INFO L87 Difference]: Start difference. First operand 452 states and 714 transitions. Second operand has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 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 05:42:31,912 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 05:42:31,912 INFO L93 Difference]: Finished difference Result 887 states and 1408 transitions. [2024-11-03 05:42:31,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-03 05:42:31,913 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 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 83 [2024-11-03 05:42:31,913 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 05:42:31,915 INFO L225 Difference]: With dead ends: 887 [2024-11-03 05:42:31,916 INFO L226 Difference]: Without dead ends: 454 [2024-11-03 05:42:31,917 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 164 GetRequests, 163 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 05:42:31,918 INFO L432 NwaCegarLoop]: 173 mSDtfsCounter, 6 mSDsluCounter, 153 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 326 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-03 05:42:31,918 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 326 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-03 05:42:31,919 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 454 states. [2024-11-03 05:42:31,930 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 454 to 454. [2024-11-03 05:42:31,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 454 states, 453 states have (on average 1.5805739514348787) internal successors, (716), 453 states have internal predecessors, (716), 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 05:42:31,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 454 states to 454 states and 716 transitions. [2024-11-03 05:42:31,933 INFO L78 Accepts]: Start accepts. Automaton has 454 states and 716 transitions. Word has length 83 [2024-11-03 05:42:31,934 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 05:42:31,934 INFO L471 AbstractCegarLoop]: Abstraction has 454 states and 716 transitions. [2024-11-03 05:42:31,934 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 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 05:42:31,934 INFO L276 IsEmpty]: Start isEmpty. Operand 454 states and 716 transitions. [2024-11-03 05:42:31,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2024-11-03 05:42:31,936 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 05:42:31,936 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:42:31,940 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (5)] Ended with exit code 0 [2024-11-03 05:42:32,137 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt [2024-11-03 05:42:32,137 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 05:42:32,138 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 05:42:32,138 INFO L85 PathProgramCache]: Analyzing trace with hash 1488639428, now seen corresponding path program 1 times [2024-11-03 05:42:32,138 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 05:42:32,138 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [941159772] [2024-11-03 05:42:32,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 05:42:32,139 INFO L173 SolverBuilder]: Constructing external solver with command: cvc5 --incremental --print-success --lang smt [2024-11-03 05:42:32,139 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 [2024-11-03 05:42:32,142 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-03 05:42:32,143 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (6)] Waiting until timeout for monitored process [2024-11-03 05:42:32,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 05:42:32,230 INFO L255 TraceCheckSpWp]: Trace formula consists of 133 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-03 05:42:32,233 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 05:42:32,303 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2024-11-03 05:42:32,303 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 05:42:32,364 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2024-11-03 05:42:32,364 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 05:42:32,364 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [941159772] [2024-11-03 05:42:32,365 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [941159772] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-03 05:42:32,365 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-03 05:42:32,365 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2024-11-03 05:42:32,367 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [845163552] [2024-11-03 05:42:32,367 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-03 05:42:32,369 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-03 05:42:32,369 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 05:42:32,370 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-03 05:42:32,370 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-03 05:42:32,371 INFO L87 Difference]: Start difference. First operand 454 states and 716 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 05:42:32,569 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 05:42:32,569 INFO L93 Difference]: Finished difference Result 1012 states and 1625 transitions. [2024-11-03 05:42:32,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-03 05:42:32,569 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 104 [2024-11-03 05:42:32,570 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 05:42:32,572 INFO L225 Difference]: With dead ends: 1012 [2024-11-03 05:42:32,572 INFO L226 Difference]: Without dead ends: 579 [2024-11-03 05:42:32,573 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 206 GetRequests, 205 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 05:42:32,574 INFO L432 NwaCegarLoop]: 185 mSDtfsCounter, 10 mSDsluCounter, 87 mSDsCounter, 0 mSdLazyCounter, 120 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 272 SdHoareTripleChecker+Invalid, 147 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 120 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-03 05:42:32,574 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 272 Invalid, 147 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 120 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-03 05:42:32,575 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 579 states. [2024-11-03 05:42:32,584 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 579 to 579. [2024-11-03 05:42:32,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 579 states, 578 states have (on average 1.480968858131488) internal successors, (856), 578 states have internal predecessors, (856), 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 05:42:32,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 579 states to 579 states and 856 transitions. [2024-11-03 05:42:32,588 INFO L78 Accepts]: Start accepts. Automaton has 579 states and 856 transitions. Word has length 104 [2024-11-03 05:42:32,588 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 05:42:32,588 INFO L471 AbstractCegarLoop]: Abstraction has 579 states and 856 transitions. [2024-11-03 05:42:32,588 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 05:42:32,588 INFO L276 IsEmpty]: Start isEmpty. Operand 579 states and 856 transitions. [2024-11-03 05:42:32,590 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2024-11-03 05:42:32,590 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 05:42:32,590 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:42:32,594 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (6)] Forceful destruction successful, exit code 0 [2024-11-03 05:42:32,792 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt [2024-11-03 05:42:32,793 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 05:42:32,793 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 05:42:32,793 INFO L85 PathProgramCache]: Analyzing trace with hash -1094933688, now seen corresponding path program 1 times [2024-11-03 05:42:32,793 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 05:42:32,794 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [214198011] [2024-11-03 05:42:32,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 05:42:32,794 INFO L173 SolverBuilder]: Constructing external solver with command: cvc5 --incremental --print-success --lang smt [2024-11-03 05:42:32,794 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 [2024-11-03 05:42:32,796 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-03 05:42:32,797 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (7)] Waiting until timeout for monitored process [2024-11-03 05:42:32,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 05:42:32,880 INFO L255 TraceCheckSpWp]: Trace formula consists of 133 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-03 05:42:32,883 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 05:42:32,922 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2024-11-03 05:42:32,922 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 05:42:32,953 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2024-11-03 05:42:32,954 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 05:42:32,954 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [214198011] [2024-11-03 05:42:32,954 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [214198011] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-03 05:42:32,954 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-03 05:42:32,954 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2024-11-03 05:42:32,954 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2088192481] [2024-11-03 05:42:32,954 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-03 05:42:32,955 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-03 05:42:32,955 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 05:42:32,955 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-03 05:42:32,955 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-03 05:42:32,956 INFO L87 Difference]: Start difference. First operand 579 states and 856 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 05:42:33,095 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 05:42:33,095 INFO L93 Difference]: Finished difference Result 1183 states and 1761 transitions. [2024-11-03 05:42:33,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-03 05:42:33,096 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 104 [2024-11-03 05:42:33,096 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 05:42:33,099 INFO L225 Difference]: With dead ends: 1183 [2024-11-03 05:42:33,099 INFO L226 Difference]: Without dead ends: 625 [2024-11-03 05:42:33,102 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 206 GetRequests, 205 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 05:42:33,104 INFO L432 NwaCegarLoop]: 186 mSDtfsCounter, 9 mSDsluCounter, 87 mSDsCounter, 0 mSdLazyCounter, 104 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 273 SdHoareTripleChecker+Invalid, 113 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 104 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-03 05:42:33,104 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 273 Invalid, 113 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 104 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-03 05:42:33,107 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 625 states. [2024-11-03 05:42:33,117 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 625 to 625. [2024-11-03 05:42:33,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 625 states, 624 states have (on average 1.4615384615384615) internal successors, (912), 624 states have internal predecessors, (912), 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 05:42:33,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 625 states to 625 states and 912 transitions. [2024-11-03 05:42:33,121 INFO L78 Accepts]: Start accepts. Automaton has 625 states and 912 transitions. Word has length 104 [2024-11-03 05:42:33,122 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 05:42:33,122 INFO L471 AbstractCegarLoop]: Abstraction has 625 states and 912 transitions. [2024-11-03 05:42:33,123 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 05:42:33,123 INFO L276 IsEmpty]: Start isEmpty. Operand 625 states and 912 transitions. [2024-11-03 05:42:33,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2024-11-03 05:42:33,124 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 05:42:33,125 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 3, 3, 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] [2024-11-03 05:42:33,128 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (7)] Ended with exit code 0 [2024-11-03 05:42:33,325 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt [2024-11-03 05:42:33,326 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 05:42:33,326 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 05:42:33,326 INFO L85 PathProgramCache]: Analyzing trace with hash -543286292, now seen corresponding path program 1 times [2024-11-03 05:42:33,326 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 05:42:33,326 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [940994576] [2024-11-03 05:42:33,326 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 05:42:33,327 INFO L173 SolverBuilder]: Constructing external solver with command: cvc5 --incremental --print-success --lang smt [2024-11-03 05:42:33,327 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 [2024-11-03 05:42:33,328 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-03 05:42:33,329 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (8)] Waiting until timeout for monitored process [2024-11-03 05:42:33,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 05:42:33,409 INFO L255 TraceCheckSpWp]: Trace formula consists of 177 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-03 05:42:33,411 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 05:42:33,449 INFO L134 CoverageAnalysis]: Checked inductivity of 228 backedges. 79 proven. 0 refuted. 0 times theorem prover too weak. 149 trivial. 0 not checked. [2024-11-03 05:42:33,449 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 05:42:33,484 INFO L134 CoverageAnalysis]: Checked inductivity of 228 backedges. 79 proven. 0 refuted. 0 times theorem prover too weak. 149 trivial. 0 not checked. [2024-11-03 05:42:33,484 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 05:42:33,484 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [940994576] [2024-11-03 05:42:33,484 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [940994576] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-03 05:42:33,484 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-03 05:42:33,485 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2024-11-03 05:42:33,485 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [849296548] [2024-11-03 05:42:33,485 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-03 05:42:33,485 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-03 05:42:33,485 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 05:42:33,486 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-03 05:42:33,486 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-03 05:42:33,486 INFO L87 Difference]: Start difference. First operand 625 states and 912 transitions. Second operand has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 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 05:42:33,612 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 05:42:33,612 INFO L93 Difference]: Finished difference Result 1304 states and 1922 transitions. [2024-11-03 05:42:33,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-03 05:42:33,613 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 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 144 [2024-11-03 05:42:33,614 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 05:42:33,616 INFO L225 Difference]: With dead ends: 1304 [2024-11-03 05:42:33,617 INFO L226 Difference]: Without dead ends: 700 [2024-11-03 05:42:33,618 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 286 GetRequests, 285 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 05:42:33,619 INFO L432 NwaCegarLoop]: 185 mSDtfsCounter, 9 mSDsluCounter, 87 mSDsCounter, 0 mSdLazyCounter, 106 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 272 SdHoareTripleChecker+Invalid, 117 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 106 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-03 05:42:33,619 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 272 Invalid, 117 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 106 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-03 05:42:33,620 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 700 states. [2024-11-03 05:42:33,632 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 700 to 700. [2024-11-03 05:42:33,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 700 states, 699 states have (on average 1.4334763948497855) internal successors, (1002), 699 states have internal predecessors, (1002), 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 05:42:33,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 700 states to 700 states and 1002 transitions. [2024-11-03 05:42:33,635 INFO L78 Accepts]: Start accepts. Automaton has 700 states and 1002 transitions. Word has length 144 [2024-11-03 05:42:33,635 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 05:42:33,635 INFO L471 AbstractCegarLoop]: Abstraction has 700 states and 1002 transitions. [2024-11-03 05:42:33,636 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 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 05:42:33,636 INFO L276 IsEmpty]: Start isEmpty. Operand 700 states and 1002 transitions. [2024-11-03 05:42:33,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2024-11-03 05:42:33,638 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 05:42:33,638 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2024-11-03 05:42:33,642 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (8)] Ended with exit code 0 [2024-11-03 05:42:33,838 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt [2024-11-03 05:42:33,839 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 05:42:33,839 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 05:42:33,839 INFO L85 PathProgramCache]: Analyzing trace with hash 1067369758, now seen corresponding path program 1 times [2024-11-03 05:42:33,840 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 05:42:33,840 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [842518448] [2024-11-03 05:42:33,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 05:42:33,840 INFO L173 SolverBuilder]: Constructing external solver with command: cvc5 --incremental --print-success --lang smt [2024-11-03 05:42:33,840 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 [2024-11-03 05:42:33,841 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-03 05:42:33,842 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (9)] Waiting until timeout for monitored process [2024-11-03 05:42:33,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 05:42:33,940 INFO L255 TraceCheckSpWp]: Trace formula consists of 217 conjuncts, 32 conjuncts are in the unsatisfiable core [2024-11-03 05:42:33,945 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 05:42:36,525 WARN L873 $PredicateComparison]: unable to prove that (exists ((|ULTIMATE.start_ssl3_accept_~ag_X~0#1| (_ BitVec 32)) (|ULTIMATE.start_ssl3_accept_~ag_Y~0#1| (_ BitVec 32))) (= |c_ULTIMATE.start_ssl3_accept_~s__state~0#1| (bvadd (bvmul (_ bv2 32) |ULTIMATE.start_ssl3_accept_~ag_X~0#1|) (bvmul (_ bv2 32) |ULTIMATE.start_ssl3_accept_~ag_Y~0#1|)))) is different from true [2024-11-03 05:42:36,607 INFO L134 CoverageAnalysis]: Checked inductivity of 282 backedges. 199 proven. 8 refuted. 0 times theorem prover too weak. 65 trivial. 10 not checked. [2024-11-03 05:42:36,607 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 05:42:36,648 INFO L134 CoverageAnalysis]: Checked inductivity of 282 backedges. 209 proven. 0 refuted. 0 times theorem prover too weak. 73 trivial. 0 not checked. [2024-11-03 05:42:36,648 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 05:42:36,648 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [842518448] [2024-11-03 05:42:36,648 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [842518448] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-03 05:42:36,648 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-03 05:42:36,648 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 7 [2024-11-03 05:42:36,649 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [10632844] [2024-11-03 05:42:36,649 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-03 05:42:36,650 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-03 05:42:36,650 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 05:42:36,650 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-03 05:42:36,651 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=19, Unknown=1, NotChecked=8, Total=42 [2024-11-03 05:42:36,651 INFO L87 Difference]: Start difference. First operand 700 states and 1002 transitions. Second operand has 3 states, 3 states have (on average 41.333333333333336) internal successors, (124), 3 states have internal predecessors, (124), 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 05:42:36,782 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 05:42:36,782 INFO L93 Difference]: Finished difference Result 1442 states and 2078 transitions. [2024-11-03 05:42:36,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-03 05:42:36,783 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 41.333333333333336) internal successors, (124), 3 states have internal predecessors, (124), 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 183 [2024-11-03 05:42:36,783 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 05:42:36,786 INFO L225 Difference]: With dead ends: 1442 [2024-11-03 05:42:36,786 INFO L226 Difference]: Without dead ends: 763 [2024-11-03 05:42:36,787 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 364 GetRequests, 359 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=14, Invalid=19, Unknown=1, NotChecked=8, Total=42 [2024-11-03 05:42:36,789 INFO L432 NwaCegarLoop]: 131 mSDtfsCounter, 45 mSDsluCounter, 71 mSDsCounter, 0 mSdLazyCounter, 114 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 202 SdHoareTripleChecker+Invalid, 135 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 114 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-03 05:42:36,790 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 202 Invalid, 135 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 114 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-03 05:42:36,791 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 763 states. [2024-11-03 05:42:36,806 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 763 to 763. [2024-11-03 05:42:36,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 763 states, 762 states have (on average 1.437007874015748) internal successors, (1095), 762 states have internal predecessors, (1095), 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 05:42:36,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 763 states to 763 states and 1095 transitions. [2024-11-03 05:42:36,810 INFO L78 Accepts]: Start accepts. Automaton has 763 states and 1095 transitions. Word has length 183 [2024-11-03 05:42:36,810 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 05:42:36,810 INFO L471 AbstractCegarLoop]: Abstraction has 763 states and 1095 transitions. [2024-11-03 05:42:36,810 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 41.333333333333336) internal successors, (124), 3 states have internal predecessors, (124), 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 05:42:36,810 INFO L276 IsEmpty]: Start isEmpty. Operand 763 states and 1095 transitions. [2024-11-03 05:42:36,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2024-11-03 05:42:36,813 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 05:42:36,813 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2024-11-03 05:42:36,816 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (9)] Ended with exit code 0 [2024-11-03 05:42:37,014 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt [2024-11-03 05:42:37,014 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 05:42:37,014 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 05:42:37,015 INFO L85 PathProgramCache]: Analyzing trace with hash -600821299, now seen corresponding path program 1 times [2024-11-03 05:42:37,015 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 05:42:37,015 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [107817939] [2024-11-03 05:42:37,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 05:42:37,015 INFO L173 SolverBuilder]: Constructing external solver with command: cvc5 --incremental --print-success --lang smt [2024-11-03 05:42:37,015 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 [2024-11-03 05:42:37,018 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-03 05:42:37,020 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (10)] Waiting until timeout for monitored process [2024-11-03 05:42:37,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 05:42:37,119 INFO L255 TraceCheckSpWp]: Trace formula consists of 218 conjuncts, 32 conjuncts are in the unsatisfiable core [2024-11-03 05:42:37,152 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 05:42:37,552 INFO L134 CoverageAnalysis]: Checked inductivity of 285 backedges. 210 proven. 10 refuted. 0 times theorem prover too weak. 65 trivial. 0 not checked. [2024-11-03 05:42:37,552 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 05:42:37,641 INFO L134 CoverageAnalysis]: Checked inductivity of 285 backedges. 212 proven. 0 refuted. 0 times theorem prover too weak. 73 trivial. 0 not checked. [2024-11-03 05:42:37,642 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 05:42:37,642 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [107817939] [2024-11-03 05:42:37,642 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [107817939] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-03 05:42:37,646 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-03 05:42:37,646 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 7 [2024-11-03 05:42:37,647 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [18901725] [2024-11-03 05:42:37,647 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-03 05:42:37,651 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-03 05:42:37,651 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 05:42:37,652 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-03 05:42:37,653 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2024-11-03 05:42:37,653 INFO L87 Difference]: Start difference. First operand 763 states and 1095 transitions. Second operand has 3 states, 3 states have (on average 41.666666666666664) internal successors, (125), 3 states have internal predecessors, (125), 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 05:42:37,797 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 05:42:37,798 INFO L93 Difference]: Finished difference Result 1571 states and 2270 transitions. [2024-11-03 05:42:37,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-03 05:42:37,798 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 41.666666666666664) internal successors, (125), 3 states have internal predecessors, (125), 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 184 [2024-11-03 05:42:37,799 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 05:42:37,802 INFO L225 Difference]: With dead ends: 1571 [2024-11-03 05:42:37,802 INFO L226 Difference]: Without dead ends: 829 [2024-11-03 05:42:37,803 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 366 GetRequests, 361 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2024-11-03 05:42:37,805 INFO L432 NwaCegarLoop]: 110 mSDtfsCounter, 45 mSDsluCounter, 71 mSDsCounter, 0 mSdLazyCounter, 109 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 181 SdHoareTripleChecker+Invalid, 131 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 109 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-03 05:42:37,805 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 181 Invalid, 131 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 109 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-03 05:42:37,806 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 829 states. [2024-11-03 05:42:37,826 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 829 to 829. [2024-11-03 05:42:37,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 829 states, 828 states have (on average 1.4420289855072463) internal successors, (1194), 828 states have internal predecessors, (1194), 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 05:42:37,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 829 states to 829 states and 1194 transitions. [2024-11-03 05:42:37,830 INFO L78 Accepts]: Start accepts. Automaton has 829 states and 1194 transitions. Word has length 184 [2024-11-03 05:42:37,831 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 05:42:37,831 INFO L471 AbstractCegarLoop]: Abstraction has 829 states and 1194 transitions. [2024-11-03 05:42:37,831 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 41.666666666666664) internal successors, (125), 3 states have internal predecessors, (125), 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 05:42:37,831 INFO L276 IsEmpty]: Start isEmpty. Operand 829 states and 1194 transitions. [2024-11-03 05:42:37,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2024-11-03 05:42:37,835 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 05:42:37,835 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2024-11-03 05:42:37,838 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (10)] Forceful destruction successful, exit code 0 [2024-11-03 05:42:38,037 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt [2024-11-03 05:42:38,038 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 05:42:38,038 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 05:42:38,038 INFO L85 PathProgramCache]: Analyzing trace with hash -390201701, now seen corresponding path program 1 times [2024-11-03 05:42:38,038 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 05:42:38,038 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [148274994] [2024-11-03 05:42:38,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 05:42:38,039 INFO L173 SolverBuilder]: Constructing external solver with command: cvc5 --incremental --print-success --lang smt [2024-11-03 05:42:38,039 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 [2024-11-03 05:42:38,042 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-03 05:42:38,044 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (11)] Waiting until timeout for monitored process [2024-11-03 05:42:38,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 05:42:38,150 INFO L255 TraceCheckSpWp]: Trace formula consists of 236 conjuncts, 32 conjuncts are in the unsatisfiable core [2024-11-03 05:42:38,156 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 05:42:38,339 INFO L134 CoverageAnalysis]: Checked inductivity of 361 backedges. 254 proven. 10 refuted. 0 times theorem prover too weak. 97 trivial. 0 not checked. [2024-11-03 05:42:38,339 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 05:42:38,381 INFO L134 CoverageAnalysis]: Checked inductivity of 361 backedges. 256 proven. 0 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2024-11-03 05:42:38,381 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 05:42:38,382 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [148274994] [2024-11-03 05:42:38,382 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [148274994] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-03 05:42:38,382 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-03 05:42:38,382 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 7 [2024-11-03 05:42:38,382 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1101201043] [2024-11-03 05:42:38,382 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-03 05:42:38,383 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-03 05:42:38,383 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 05:42:38,383 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-03 05:42:38,383 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2024-11-03 05:42:38,383 INFO L87 Difference]: Start difference. First operand 829 states and 1194 transitions. Second operand has 3 states, 3 states have (on average 41.666666666666664) internal successors, (125), 3 states have internal predecessors, (125), 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 05:42:38,512 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 05:42:38,513 INFO L93 Difference]: Finished difference Result 1637 states and 2363 transitions. [2024-11-03 05:42:38,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-03 05:42:38,513 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 41.666666666666664) internal successors, (125), 3 states have internal predecessors, (125), 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 199 [2024-11-03 05:42:38,514 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 05:42:38,516 INFO L225 Difference]: With dead ends: 1637 [2024-11-03 05:42:38,517 INFO L226 Difference]: Without dead ends: 829 [2024-11-03 05:42:38,518 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 396 GetRequests, 391 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2024-11-03 05:42:38,518 INFO L432 NwaCegarLoop]: 136 mSDtfsCounter, 38 mSDsluCounter, 81 mSDsCounter, 0 mSdLazyCounter, 110 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 217 SdHoareTripleChecker+Invalid, 130 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 110 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-03 05:42:38,518 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 217 Invalid, 130 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 110 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-03 05:42:38,519 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 829 states. [2024-11-03 05:42:38,532 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 829 to 829. [2024-11-03 05:42:38,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 829 states, 828 states have (on average 1.434782608695652) internal successors, (1188), 828 states have internal predecessors, (1188), 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 05:42:38,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 829 states to 829 states and 1188 transitions. [2024-11-03 05:42:38,535 INFO L78 Accepts]: Start accepts. Automaton has 829 states and 1188 transitions. Word has length 199 [2024-11-03 05:42:38,535 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 05:42:38,535 INFO L471 AbstractCegarLoop]: Abstraction has 829 states and 1188 transitions. [2024-11-03 05:42:38,536 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 41.666666666666664) internal successors, (125), 3 states have internal predecessors, (125), 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 05:42:38,536 INFO L276 IsEmpty]: Start isEmpty. Operand 829 states and 1188 transitions. [2024-11-03 05:42:38,538 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2024-11-03 05:42:38,538 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 05:42:38,538 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2024-11-03 05:42:38,544 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (11)] Ended with exit code 0 [2024-11-03 05:42:38,738 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt [2024-11-03 05:42:38,739 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 05:42:38,739 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 05:42:38,739 INFO L85 PathProgramCache]: Analyzing trace with hash -546671195, now seen corresponding path program 1 times [2024-11-03 05:42:38,740 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 05:42:38,740 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1971973790] [2024-11-03 05:42:38,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 05:42:38,740 INFO L173 SolverBuilder]: Constructing external solver with command: cvc5 --incremental --print-success --lang smt [2024-11-03 05:42:38,740 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 [2024-11-03 05:42:38,741 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-03 05:42:38,742 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (12)] Waiting until timeout for monitored process [2024-11-03 05:42:38,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 05:42:38,839 INFO L255 TraceCheckSpWp]: Trace formula consists of 237 conjuncts, 32 conjuncts are in the unsatisfiable core [2024-11-03 05:42:38,843 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 05:42:38,989 INFO L134 CoverageAnalysis]: Checked inductivity of 366 backedges. 265 proven. 4 refuted. 0 times theorem prover too weak. 97 trivial. 0 not checked. [2024-11-03 05:42:38,989 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 05:42:39,077 INFO L134 CoverageAnalysis]: Checked inductivity of 366 backedges. 261 proven. 0 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2024-11-03 05:42:39,078 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 05:42:39,078 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1971973790] [2024-11-03 05:42:39,078 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [1971973790] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-03 05:42:39,078 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-03 05:42:39,078 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2024-11-03 05:42:39,078 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1647698496] [2024-11-03 05:42:39,078 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-03 05:42:39,079 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-03 05:42:39,079 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 05:42:39,079 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-03 05:42:39,079 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2024-11-03 05:42:39,080 INFO L87 Difference]: Start difference. First operand 829 states and 1188 transitions. Second operand has 3 states, 3 states have (on average 42.0) internal successors, (126), 3 states have internal predecessors, (126), 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 05:42:39,196 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 05:42:39,196 INFO L93 Difference]: Finished difference Result 1637 states and 2351 transitions. [2024-11-03 05:42:39,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-03 05:42:39,197 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 42.0) internal successors, (126), 3 states have internal predecessors, (126), 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 200 [2024-11-03 05:42:39,197 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 05:42:39,201 INFO L225 Difference]: With dead ends: 1637 [2024-11-03 05:42:39,201 INFO L226 Difference]: Without dead ends: 829 [2024-11-03 05:42:39,203 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 398 GetRequests, 394 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2024-11-03 05:42:39,204 INFO L432 NwaCegarLoop]: 110 mSDtfsCounter, 48 mSDsluCounter, 71 mSDsCounter, 0 mSdLazyCounter, 106 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 181 SdHoareTripleChecker+Invalid, 128 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 106 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-03 05:42:39,204 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 181 Invalid, 128 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 106 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-03 05:42:39,205 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 829 states. [2024-11-03 05:42:39,218 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 829 to 829. [2024-11-03 05:42:39,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 829 states, 828 states have (on average 1.423913043478261) internal successors, (1179), 828 states have internal predecessors, (1179), 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 05:42:39,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 829 states to 829 states and 1179 transitions. [2024-11-03 05:42:39,221 INFO L78 Accepts]: Start accepts. Automaton has 829 states and 1179 transitions. Word has length 200 [2024-11-03 05:42:39,221 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 05:42:39,221 INFO L471 AbstractCegarLoop]: Abstraction has 829 states and 1179 transitions. [2024-11-03 05:42:39,221 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 42.0) internal successors, (126), 3 states have internal predecessors, (126), 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 05:42:39,222 INFO L276 IsEmpty]: Start isEmpty. Operand 829 states and 1179 transitions. [2024-11-03 05:42:39,224 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2024-11-03 05:42:39,224 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 05:42:39,224 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2024-11-03 05:42:39,228 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (12)] Ended with exit code 0 [2024-11-03 05:42:39,426 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt [2024-11-03 05:42:39,426 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 05:42:39,427 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 05:42:39,427 INFO L85 PathProgramCache]: Analyzing trace with hash -512978570, now seen corresponding path program 1 times [2024-11-03 05:42:39,427 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 05:42:39,427 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [625595960] [2024-11-03 05:42:39,427 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 05:42:39,427 INFO L173 SolverBuilder]: Constructing external solver with command: cvc5 --incremental --print-success --lang smt [2024-11-03 05:42:39,427 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 [2024-11-03 05:42:39,430 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-03 05:42:39,432 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (13)] Waiting until timeout for monitored process [2024-11-03 05:42:39,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 05:42:39,520 INFO L255 TraceCheckSpWp]: Trace formula consists of 238 conjuncts, 32 conjuncts are in the unsatisfiable core [2024-11-03 05:42:39,524 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 05:42:39,673 INFO L134 CoverageAnalysis]: Checked inductivity of 371 backedges. 264 proven. 10 refuted. 0 times theorem prover too weak. 97 trivial. 0 not checked. [2024-11-03 05:42:39,674 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 05:42:39,898 INFO L134 CoverageAnalysis]: Checked inductivity of 371 backedges. 266 proven. 0 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2024-11-03 05:42:39,899 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 05:42:39,899 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [625595960] [2024-11-03 05:42:39,899 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [625595960] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-03 05:42:39,899 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-03 05:42:39,899 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 7 [2024-11-03 05:42:39,899 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1984728630] [2024-11-03 05:42:39,899 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-03 05:42:39,900 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-03 05:42:39,900 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 05:42:39,900 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-03 05:42:39,900 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-03 05:42:39,901 INFO L87 Difference]: Start difference. First operand 829 states and 1179 transitions. Second operand has 3 states, 3 states have (on average 42.333333333333336) internal successors, (127), 3 states have internal predecessors, (127), 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 05:42:40,026 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 05:42:40,026 INFO L93 Difference]: Finished difference Result 1697 states and 2420 transitions. [2024-11-03 05:42:40,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-03 05:42:40,027 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 42.333333333333336) internal successors, (127), 3 states have internal predecessors, (127), 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 201 [2024-11-03 05:42:40,027 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 05:42:40,030 INFO L225 Difference]: With dead ends: 1697 [2024-11-03 05:42:40,030 INFO L226 Difference]: Without dead ends: 889 [2024-11-03 05:42:40,031 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 400 GetRequests, 395 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-03 05:42:40,032 INFO L432 NwaCegarLoop]: 129 mSDtfsCounter, 46 mSDsluCounter, 71 mSDsCounter, 0 mSdLazyCounter, 111 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 200 SdHoareTripleChecker+Invalid, 131 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 111 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-03 05:42:40,032 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 200 Invalid, 131 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 111 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-03 05:42:40,033 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 889 states. [2024-11-03 05:42:40,074 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 889 to 889. [2024-11-03 05:42:40,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 889 states, 888 states have (on average 1.4189189189189189) internal successors, (1260), 888 states have internal predecessors, (1260), 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 05:42:40,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 889 states to 889 states and 1260 transitions. [2024-11-03 05:42:40,078 INFO L78 Accepts]: Start accepts. Automaton has 889 states and 1260 transitions. Word has length 201 [2024-11-03 05:42:40,078 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 05:42:40,078 INFO L471 AbstractCegarLoop]: Abstraction has 889 states and 1260 transitions. [2024-11-03 05:42:40,078 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 42.333333333333336) internal successors, (127), 3 states have internal predecessors, (127), 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 05:42:40,079 INFO L276 IsEmpty]: Start isEmpty. Operand 889 states and 1260 transitions. [2024-11-03 05:42:40,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2024-11-03 05:42:40,081 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 05:42:40,081 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2024-11-03 05:42:40,084 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (13)] Forceful destruction successful, exit code 0 [2024-11-03 05:42:40,283 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt [2024-11-03 05:42:40,283 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 05:42:40,283 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 05:42:40,284 INFO L85 PathProgramCache]: Analyzing trace with hash -1354548807, now seen corresponding path program 1 times [2024-11-03 05:42:40,284 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 05:42:40,284 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1744990739] [2024-11-03 05:42:40,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 05:42:40,284 INFO L173 SolverBuilder]: Constructing external solver with command: cvc5 --incremental --print-success --lang smt [2024-11-03 05:42:40,284 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 [2024-11-03 05:42:40,285 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-03 05:42:40,286 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (14)] Waiting until timeout for monitored process [2024-11-03 05:42:40,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 05:42:40,380 INFO L255 TraceCheckSpWp]: Trace formula consists of 245 conjuncts, 32 conjuncts are in the unsatisfiable core [2024-11-03 05:42:40,385 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 05:42:40,508 INFO L134 CoverageAnalysis]: Checked inductivity of 403 backedges. 296 proven. 10 refuted. 0 times theorem prover too weak. 97 trivial. 0 not checked. [2024-11-03 05:42:40,509 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 05:42:40,615 INFO L134 CoverageAnalysis]: Checked inductivity of 403 backedges. 298 proven. 0 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2024-11-03 05:42:40,615 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 05:42:40,615 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1744990739] [2024-11-03 05:42:40,616 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [1744990739] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-03 05:42:40,616 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-03 05:42:40,616 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 7 [2024-11-03 05:42:40,616 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [406472543] [2024-11-03 05:42:40,616 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-03 05:42:40,617 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-03 05:42:40,617 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 05:42:40,618 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-03 05:42:40,618 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-03 05:42:40,618 INFO L87 Difference]: Start difference. First operand 889 states and 1260 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 05:42:40,755 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 05:42:40,756 INFO L93 Difference]: Finished difference Result 1880 states and 2696 transitions. [2024-11-03 05:42:40,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-03 05:42:40,756 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 211 [2024-11-03 05:42:40,756 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 05:42:40,760 INFO L225 Difference]: With dead ends: 1880 [2024-11-03 05:42:40,760 INFO L226 Difference]: Without dead ends: 1012 [2024-11-03 05:42:40,761 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 420 GetRequests, 415 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-03 05:42:40,762 INFO L432 NwaCegarLoop]: 151 mSDtfsCounter, 32 mSDsluCounter, 74 mSDsCounter, 0 mSdLazyCounter, 132 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 225 SdHoareTripleChecker+Invalid, 149 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 132 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-03 05:42:40,763 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 225 Invalid, 149 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 132 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-03 05:42:40,764 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1012 states. [2024-11-03 05:42:40,781 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1012 to 1012. [2024-11-03 05:42:40,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1012 states, 1011 states have (on average 1.4391691394658754) internal successors, (1455), 1011 states have internal predecessors, (1455), 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 05:42:40,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1012 states to 1012 states and 1455 transitions. [2024-11-03 05:42:40,785 INFO L78 Accepts]: Start accepts. Automaton has 1012 states and 1455 transitions. Word has length 211 [2024-11-03 05:42:40,786 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 05:42:40,786 INFO L471 AbstractCegarLoop]: Abstraction has 1012 states and 1455 transitions. [2024-11-03 05:42:40,786 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 05:42:40,786 INFO L276 IsEmpty]: Start isEmpty. Operand 1012 states and 1455 transitions. [2024-11-03 05:42:40,789 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2024-11-03 05:42:40,789 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 05:42:40,789 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2024-11-03 05:42:40,792 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (14)] Ended with exit code 0 [2024-11-03 05:42:40,991 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt [2024-11-03 05:42:40,991 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 05:42:40,991 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 05:42:40,991 INFO L85 PathProgramCache]: Analyzing trace with hash -106757393, now seen corresponding path program 1 times [2024-11-03 05:42:40,992 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 05:42:40,992 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1572789152] [2024-11-03 05:42:40,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 05:42:40,992 INFO L173 SolverBuilder]: Constructing external solver with command: cvc5 --incremental --print-success --lang smt [2024-11-03 05:42:40,992 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 [2024-11-03 05:42:40,993 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-03 05:42:40,994 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (15)] Waiting until timeout for monitored process [2024-11-03 05:42:41,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 05:42:41,087 INFO L255 TraceCheckSpWp]: Trace formula consists of 260 conjuncts, 32 conjuncts are in the unsatisfiable core [2024-11-03 05:42:41,092 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 05:42:41,219 INFO L134 CoverageAnalysis]: Checked inductivity of 471 backedges. 302 proven. 4 refuted. 0 times theorem prover too weak. 165 trivial. 0 not checked. [2024-11-03 05:42:41,219 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 05:42:41,294 INFO L134 CoverageAnalysis]: Checked inductivity of 471 backedges. 298 proven. 0 refuted. 0 times theorem prover too weak. 173 trivial. 0 not checked. [2024-11-03 05:42:41,295 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 05:42:41,295 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1572789152] [2024-11-03 05:42:41,295 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [1572789152] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-03 05:42:41,295 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-03 05:42:41,295 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2024-11-03 05:42:41,295 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [109317199] [2024-11-03 05:42:41,295 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-03 05:42:41,296 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-03 05:42:41,296 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 05:42:41,296 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-03 05:42:41,296 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-03 05:42:41,297 INFO L87 Difference]: Start difference. First operand 1012 states and 1455 transitions. Second operand has 3 states, 3 states have (on average 41.333333333333336) internal successors, (124), 3 states have internal predecessors, (124), 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 05:42:41,415 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 05:42:41,415 INFO L93 Difference]: Finished difference Result 2003 states and 2885 transitions. [2024-11-03 05:42:41,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-03 05:42:41,415 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 41.333333333333336) internal successors, (124), 3 states have internal predecessors, (124), 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 223 [2024-11-03 05:42:41,416 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 05:42:41,419 INFO L225 Difference]: With dead ends: 2003 [2024-11-03 05:42:41,419 INFO L226 Difference]: Without dead ends: 1012 [2024-11-03 05:42:41,420 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 444 GetRequests, 440 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-03 05:42:41,421 INFO L432 NwaCegarLoop]: 122 mSDtfsCounter, 52 mSDsluCounter, 71 mSDsCounter, 0 mSdLazyCounter, 103 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 193 SdHoareTripleChecker+Invalid, 124 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 103 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-03 05:42:41,421 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [52 Valid, 193 Invalid, 124 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 103 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-03 05:42:41,423 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1012 states. [2024-11-03 05:42:41,443 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1012 to 1012. [2024-11-03 05:42:41,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1012 states, 1011 states have (on average 1.427299703264095) internal successors, (1443), 1011 states have internal predecessors, (1443), 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 05:42:41,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1012 states to 1012 states and 1443 transitions. [2024-11-03 05:42:41,447 INFO L78 Accepts]: Start accepts. Automaton has 1012 states and 1443 transitions. Word has length 223 [2024-11-03 05:42:41,447 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 05:42:41,447 INFO L471 AbstractCegarLoop]: Abstraction has 1012 states and 1443 transitions. [2024-11-03 05:42:41,447 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 41.333333333333336) internal successors, (124), 3 states have internal predecessors, (124), 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 05:42:41,447 INFO L276 IsEmpty]: Start isEmpty. Operand 1012 states and 1443 transitions. [2024-11-03 05:42:41,450 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 225 [2024-11-03 05:42:41,450 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 05:42:41,451 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2024-11-03 05:42:41,453 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (15)] Ended with exit code 0 [2024-11-03 05:42:41,652 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt [2024-11-03 05:42:41,653 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 05:42:41,653 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 05:42:41,653 INFO L85 PathProgramCache]: Analyzing trace with hash -1953901890, now seen corresponding path program 1 times [2024-11-03 05:42:41,653 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 05:42:41,653 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1598130462] [2024-11-03 05:42:41,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 05:42:41,654 INFO L173 SolverBuilder]: Constructing external solver with command: cvc5 --incremental --print-success --lang smt [2024-11-03 05:42:41,654 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 [2024-11-03 05:42:41,657 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-03 05:42:41,658 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (16)] Waiting until timeout for monitored process [2024-11-03 05:42:41,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 05:42:41,760 INFO L255 TraceCheckSpWp]: Trace formula consists of 261 conjuncts, 32 conjuncts are in the unsatisfiable core [2024-11-03 05:42:41,765 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 05:42:41,891 INFO L134 CoverageAnalysis]: Checked inductivity of 478 backedges. 303 proven. 10 refuted. 0 times theorem prover too weak. 165 trivial. 0 not checked. [2024-11-03 05:42:41,892 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 05:42:41,969 INFO L134 CoverageAnalysis]: Checked inductivity of 478 backedges. 305 proven. 0 refuted. 0 times theorem prover too weak. 173 trivial. 0 not checked. [2024-11-03 05:42:41,970 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 05:42:41,970 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1598130462] [2024-11-03 05:42:41,970 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [1598130462] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-03 05:42:41,970 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-03 05:42:41,970 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 7 [2024-11-03 05:42:41,970 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1084032237] [2024-11-03 05:42:41,970 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-03 05:42:41,971 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-03 05:42:41,971 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 05:42:41,971 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-03 05:42:41,971 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2024-11-03 05:42:41,971 INFO L87 Difference]: Start difference. First operand 1012 states and 1443 transitions. Second operand has 3 states, 3 states have (on average 41.666666666666664) internal successors, (125), 3 states have internal predecessors, (125), 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 05:42:42,089 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 05:42:42,090 INFO L93 Difference]: Finished difference Result 2003 states and 2861 transitions. [2024-11-03 05:42:42,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-03 05:42:42,091 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 41.666666666666664) internal successors, (125), 3 states have internal predecessors, (125), 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 224 [2024-11-03 05:42:42,091 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 05:42:42,094 INFO L225 Difference]: With dead ends: 2003 [2024-11-03 05:42:42,094 INFO L226 Difference]: Without dead ends: 1012 [2024-11-03 05:42:42,097 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 446 GetRequests, 441 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2024-11-03 05:42:42,097 INFO L432 NwaCegarLoop]: 110 mSDtfsCounter, 51 mSDsluCounter, 71 mSDsCounter, 0 mSdLazyCounter, 103 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 181 SdHoareTripleChecker+Invalid, 125 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 103 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-03 05:42:42,098 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [51 Valid, 181 Invalid, 125 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 103 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-03 05:42:42,099 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1012 states. [2024-11-03 05:42:42,117 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1012 to 1012. [2024-11-03 05:42:42,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1012 states, 1011 states have (on average 1.4124629080118694) internal successors, (1428), 1011 states have internal predecessors, (1428), 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 05:42:42,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1012 states to 1012 states and 1428 transitions. [2024-11-03 05:42:42,136 INFO L78 Accepts]: Start accepts. Automaton has 1012 states and 1428 transitions. Word has length 224 [2024-11-03 05:42:42,137 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 05:42:42,137 INFO L471 AbstractCegarLoop]: Abstraction has 1012 states and 1428 transitions. [2024-11-03 05:42:42,137 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 41.666666666666664) internal successors, (125), 3 states have internal predecessors, (125), 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 05:42:42,137 INFO L276 IsEmpty]: Start isEmpty. Operand 1012 states and 1428 transitions. [2024-11-03 05:42:42,140 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2024-11-03 05:42:42,140 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 05:42:42,140 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2024-11-03 05:42:42,144 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (16)] Ended with exit code 0 [2024-11-03 05:42:42,342 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt [2024-11-03 05:42:42,343 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 05:42:42,343 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 05:42:42,343 INFO L85 PathProgramCache]: Analyzing trace with hash 2069571760, now seen corresponding path program 1 times [2024-11-03 05:42:42,343 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 05:42:42,343 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [729190490] [2024-11-03 05:42:42,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 05:42:42,343 INFO L173 SolverBuilder]: Constructing external solver with command: cvc5 --incremental --print-success --lang smt [2024-11-03 05:42:42,343 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 [2024-11-03 05:42:42,344 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-03 05:42:42,345 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (17)] Waiting until timeout for monitored process [2024-11-03 05:42:42,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 05:42:42,433 INFO L255 TraceCheckSpWp]: Trace formula consists of 269 conjuncts, 32 conjuncts are in the unsatisfiable core [2024-11-03 05:42:42,438 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 05:42:42,664 INFO L134 CoverageAnalysis]: Checked inductivity of 510 backedges. 358 proven. 10 refuted. 0 times theorem prover too weak. 142 trivial. 0 not checked. [2024-11-03 05:42:42,664 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 05:42:42,765 INFO L134 CoverageAnalysis]: Checked inductivity of 510 backedges. 360 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2024-11-03 05:42:42,766 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 05:42:42,766 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [729190490] [2024-11-03 05:42:42,766 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [729190490] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-03 05:42:42,766 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-03 05:42:42,766 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 7 [2024-11-03 05:42:42,766 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [17906195] [2024-11-03 05:42:42,766 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-03 05:42:42,766 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-03 05:42:42,767 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 05:42:42,767 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-03 05:42:42,767 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-03 05:42:42,767 INFO L87 Difference]: Start difference. First operand 1012 states and 1428 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 05:42:42,904 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 05:42:42,905 INFO L93 Difference]: Finished difference Result 2006 states and 2837 transitions. [2024-11-03 05:42:42,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-03 05:42:42,905 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 231 [2024-11-03 05:42:42,906 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 05:42:42,909 INFO L225 Difference]: With dead ends: 2006 [2024-11-03 05:42:42,909 INFO L226 Difference]: Without dead ends: 1015 [2024-11-03 05:42:42,910 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 460 GetRequests, 455 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-03 05:42:42,911 INFO L432 NwaCegarLoop]: 153 mSDtfsCounter, 34 mSDsluCounter, 71 mSDsCounter, 0 mSdLazyCounter, 126 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 224 SdHoareTripleChecker+Invalid, 147 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 126 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-03 05:42:42,911 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 224 Invalid, 147 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 126 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-03 05:42:42,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1015 states. [2024-11-03 05:42:42,929 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1015 to 1015. [2024-11-03 05:42:42,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1015 states, 1014 states have (on average 1.4082840236686391) internal successors, (1428), 1014 states have internal predecessors, (1428), 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 05:42:42,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1015 states to 1015 states and 1428 transitions. [2024-11-03 05:42:42,933 INFO L78 Accepts]: Start accepts. Automaton has 1015 states and 1428 transitions. Word has length 231 [2024-11-03 05:42:42,933 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 05:42:42,933 INFO L471 AbstractCegarLoop]: Abstraction has 1015 states and 1428 transitions. [2024-11-03 05:42:42,934 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 05:42:42,934 INFO L276 IsEmpty]: Start isEmpty. Operand 1015 states and 1428 transitions. [2024-11-03 05:42:42,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 233 [2024-11-03 05:42:42,937 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 05:42:42,937 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 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] [2024-11-03 05:42:42,940 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (17)] Forceful destruction successful, exit code 0 [2024-11-03 05:42:43,137 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt [2024-11-03 05:42:43,138 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 05:42:43,138 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 05:42:43,138 INFO L85 PathProgramCache]: Analyzing trace with hash 1345552218, now seen corresponding path program 1 times [2024-11-03 05:42:43,138 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 05:42:43,138 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [374212796] [2024-11-03 05:42:43,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 05:42:43,139 INFO L173 SolverBuilder]: Constructing external solver with command: cvc5 --incremental --print-success --lang smt [2024-11-03 05:42:43,139 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 [2024-11-03 05:42:43,142 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-03 05:42:43,143 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (18)] Waiting until timeout for monitored process [2024-11-03 05:42:43,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 05:42:43,243 INFO L255 TraceCheckSpWp]: Trace formula consists of 270 conjuncts, 32 conjuncts are in the unsatisfiable core [2024-11-03 05:42:43,247 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 05:42:43,520 INFO L134 CoverageAnalysis]: Checked inductivity of 513 backedges. 361 proven. 10 refuted. 0 times theorem prover too weak. 142 trivial. 0 not checked. [2024-11-03 05:42:43,520 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 05:42:43,612 INFO L134 CoverageAnalysis]: Checked inductivity of 513 backedges. 363 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2024-11-03 05:42:43,612 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 05:42:43,612 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [374212796] [2024-11-03 05:42:43,612 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [374212796] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-03 05:42:43,612 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-03 05:42:43,612 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 7 [2024-11-03 05:42:43,613 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [654940917] [2024-11-03 05:42:43,613 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-03 05:42:43,613 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-03 05:42:43,613 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 05:42:43,614 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-03 05:42:43,614 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2024-11-03 05:42:43,614 INFO L87 Difference]: Start difference. First operand 1015 states and 1428 transitions. Second operand has 3 states, 3 states have (on average 48.0) internal successors, (144), 3 states have internal predecessors, (144), 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 05:42:43,741 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 05:42:43,741 INFO L93 Difference]: Finished difference Result 2042 states and 2897 transitions. [2024-11-03 05:42:43,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-03 05:42:43,742 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 48.0) internal successors, (144), 3 states have internal predecessors, (144), 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 232 [2024-11-03 05:42:43,742 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 05:42:43,744 INFO L225 Difference]: With dead ends: 2042 [2024-11-03 05:42:43,744 INFO L226 Difference]: Without dead ends: 1048 [2024-11-03 05:42:43,745 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 462 GetRequests, 457 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2024-11-03 05:42:43,746 INFO L432 NwaCegarLoop]: 113 mSDtfsCounter, 34 mSDsluCounter, 71 mSDsCounter, 0 mSdLazyCounter, 117 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 184 SdHoareTripleChecker+Invalid, 139 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 117 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-03 05:42:43,746 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 184 Invalid, 139 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 117 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-03 05:42:43,747 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1048 states. [2024-11-03 05:42:43,769 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1048 to 1048. [2024-11-03 05:42:43,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1048 states, 1047 states have (on average 1.4212034383954155) internal successors, (1488), 1047 states have internal predecessors, (1488), 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 05:42:43,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1048 states to 1048 states and 1488 transitions. [2024-11-03 05:42:43,773 INFO L78 Accepts]: Start accepts. Automaton has 1048 states and 1488 transitions. Word has length 232 [2024-11-03 05:42:43,773 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 05:42:43,773 INFO L471 AbstractCegarLoop]: Abstraction has 1048 states and 1488 transitions. [2024-11-03 05:42:43,773 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 48.0) internal successors, (144), 3 states have internal predecessors, (144), 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 05:42:43,774 INFO L276 IsEmpty]: Start isEmpty. Operand 1048 states and 1488 transitions. [2024-11-03 05:42:43,778 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 238 [2024-11-03 05:42:43,778 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 05:42:43,779 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2024-11-03 05:42:43,782 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (18)] Forceful destruction successful, exit code 0 [2024-11-03 05:42:43,979 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt [2024-11-03 05:42:43,980 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 05:42:43,980 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 05:42:43,980 INFO L85 PathProgramCache]: Analyzing trace with hash -1525121614, now seen corresponding path program 1 times [2024-11-03 05:42:43,980 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 05:42:43,980 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [112755980] [2024-11-03 05:42:43,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 05:42:43,981 INFO L173 SolverBuilder]: Constructing external solver with command: cvc5 --incremental --print-success --lang smt [2024-11-03 05:42:43,981 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 [2024-11-03 05:42:43,984 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-03 05:42:43,985 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (19)] Waiting until timeout for monitored process [2024-11-03 05:42:44,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 05:42:44,090 INFO L255 TraceCheckSpWp]: Trace formula consists of 274 conjuncts, 32 conjuncts are in the unsatisfiable core [2024-11-03 05:42:44,094 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 05:42:44,199 INFO L134 CoverageAnalysis]: Checked inductivity of 542 backedges. 367 proven. 10 refuted. 0 times theorem prover too weak. 165 trivial. 0 not checked. [2024-11-03 05:42:44,199 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 05:42:44,293 INFO L134 CoverageAnalysis]: Checked inductivity of 542 backedges. 369 proven. 0 refuted. 0 times theorem prover too weak. 173 trivial. 0 not checked. [2024-11-03 05:42:44,293 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 05:42:44,293 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [112755980] [2024-11-03 05:42:44,293 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [112755980] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-03 05:42:44,293 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-03 05:42:44,293 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 7 [2024-11-03 05:42:44,293 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [875937886] [2024-11-03 05:42:44,293 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-03 05:42:44,294 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-03 05:42:44,294 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 05:42:44,294 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-03 05:42:44,295 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-03 05:42:44,295 INFO L87 Difference]: Start difference. First operand 1048 states and 1488 transitions. Second operand has 3 states, 3 states have (on average 46.0) internal successors, (138), 3 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 05:42:44,414 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 05:42:44,414 INFO L93 Difference]: Finished difference Result 2162 states and 3077 transitions. [2024-11-03 05:42:44,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-03 05:42:44,415 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 46.0) internal successors, (138), 3 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 237 [2024-11-03 05:42:44,416 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 05:42:44,420 INFO L225 Difference]: With dead ends: 2162 [2024-11-03 05:42:44,420 INFO L226 Difference]: Without dead ends: 1135 [2024-11-03 05:42:44,421 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 472 GetRequests, 467 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-03 05:42:44,422 INFO L432 NwaCegarLoop]: 147 mSDtfsCounter, 37 mSDsluCounter, 71 mSDsCounter, 0 mSdLazyCounter, 123 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 218 SdHoareTripleChecker+Invalid, 141 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 123 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-03 05:42:44,422 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [37 Valid, 218 Invalid, 141 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 123 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-03 05:42:44,423 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1135 states. [2024-11-03 05:42:44,441 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1135 to 1135. [2024-11-03 05:42:44,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1135 states, 1134 states have (on average 1.4153439153439153) internal successors, (1605), 1134 states have internal predecessors, (1605), 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 05:42:44,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1135 states to 1135 states and 1605 transitions. [2024-11-03 05:42:44,445 INFO L78 Accepts]: Start accepts. Automaton has 1135 states and 1605 transitions. Word has length 237 [2024-11-03 05:42:44,445 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 05:42:44,445 INFO L471 AbstractCegarLoop]: Abstraction has 1135 states and 1605 transitions. [2024-11-03 05:42:44,445 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 46.0) internal successors, (138), 3 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 05:42:44,445 INFO L276 IsEmpty]: Start isEmpty. Operand 1135 states and 1605 transitions. [2024-11-03 05:42:44,447 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 239 [2024-11-03 05:42:44,447 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 05:42:44,447 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2024-11-03 05:42:44,450 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (19)] Ended with exit code 0 [2024-11-03 05:42:44,648 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt [2024-11-03 05:42:44,648 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 05:42:44,649 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 05:42:44,649 INFO L85 PathProgramCache]: Analyzing trace with hash 251045858, now seen corresponding path program 1 times [2024-11-03 05:42:44,649 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 05:42:44,649 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [571743596] [2024-11-03 05:42:44,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 05:42:44,649 INFO L173 SolverBuilder]: Constructing external solver with command: cvc5 --incremental --print-success --lang smt [2024-11-03 05:42:44,649 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 [2024-11-03 05:42:44,652 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-03 05:42:44,653 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (20)] Waiting until timeout for monitored process [2024-11-03 05:42:44,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 05:42:44,759 INFO L255 TraceCheckSpWp]: Trace formula consists of 275 conjuncts, 32 conjuncts are in the unsatisfiable core [2024-11-03 05:42:44,763 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 05:42:44,879 INFO L134 CoverageAnalysis]: Checked inductivity of 534 backedges. 359 proven. 10 refuted. 0 times theorem prover too weak. 165 trivial. 0 not checked. [2024-11-03 05:42:44,879 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 05:42:44,958 INFO L134 CoverageAnalysis]: Checked inductivity of 534 backedges. 361 proven. 0 refuted. 0 times theorem prover too weak. 173 trivial. 0 not checked. [2024-11-03 05:42:44,958 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 05:42:44,959 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [571743596] [2024-11-03 05:42:44,959 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [571743596] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-03 05:42:44,959 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-03 05:42:44,959 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 7 [2024-11-03 05:42:44,959 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1585404095] [2024-11-03 05:42:44,959 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-03 05:42:44,960 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-03 05:42:44,960 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 05:42:44,960 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-03 05:42:44,960 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-03 05:42:44,961 INFO L87 Difference]: Start difference. First operand 1135 states and 1605 transitions. Second operand has 3 states, 3 states have (on average 46.333333333333336) internal successors, (139), 3 states have internal predecessors, (139), 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 05:42:45,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 05:42:45,088 INFO L93 Difference]: Finished difference Result 2330 states and 3299 transitions. [2024-11-03 05:42:45,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-03 05:42:45,088 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 46.333333333333336) internal successors, (139), 3 states have internal predecessors, (139), 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 238 [2024-11-03 05:42:45,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 05:42:45,092 INFO L225 Difference]: With dead ends: 2330 [2024-11-03 05:42:45,093 INFO L226 Difference]: Without dead ends: 1216 [2024-11-03 05:42:45,094 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 474 GetRequests, 469 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-03 05:42:45,095 INFO L432 NwaCegarLoop]: 143 mSDtfsCounter, 39 mSDsluCounter, 71 mSDsCounter, 0 mSdLazyCounter, 117 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 214 SdHoareTripleChecker+Invalid, 137 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 117 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-03 05:42:45,095 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 214 Invalid, 137 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 117 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-03 05:42:45,096 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1216 states. [2024-11-03 05:42:45,116 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1216 to 1216. [2024-11-03 05:42:45,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1216 states, 1215 states have (on average 1.4049382716049383) internal successors, (1707), 1215 states have internal predecessors, (1707), 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 05:42:45,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1216 states to 1216 states and 1707 transitions. [2024-11-03 05:42:45,121 INFO L78 Accepts]: Start accepts. Automaton has 1216 states and 1707 transitions. Word has length 238 [2024-11-03 05:42:45,121 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 05:42:45,121 INFO L471 AbstractCegarLoop]: Abstraction has 1216 states and 1707 transitions. [2024-11-03 05:42:45,121 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 46.333333333333336) internal successors, (139), 3 states have internal predecessors, (139), 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 05:42:45,121 INFO L276 IsEmpty]: Start isEmpty. Operand 1216 states and 1707 transitions. [2024-11-03 05:42:45,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 239 [2024-11-03 05:42:45,124 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 05:42:45,124 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2024-11-03 05:42:45,127 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (20)] Ended with exit code 0 [2024-11-03 05:42:45,324 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt [2024-11-03 05:42:45,324 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 05:42:45,325 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 05:42:45,325 INFO L85 PathProgramCache]: Analyzing trace with hash 843580321, now seen corresponding path program 1 times [2024-11-03 05:42:45,325 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 05:42:45,325 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [270211004] [2024-11-03 05:42:45,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 05:42:45,325 INFO L173 SolverBuilder]: Constructing external solver with command: cvc5 --incremental --print-success --lang smt [2024-11-03 05:42:45,325 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 [2024-11-03 05:42:45,326 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-03 05:42:45,327 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (21)] Waiting until timeout for monitored process [2024-11-03 05:42:45,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 05:42:45,431 INFO L255 TraceCheckSpWp]: Trace formula consists of 275 conjuncts, 32 conjuncts are in the unsatisfiable core [2024-11-03 05:42:45,435 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 05:42:45,578 INFO L134 CoverageAnalysis]: Checked inductivity of 546 backedges. 371 proven. 10 refuted. 0 times theorem prover too weak. 165 trivial. 0 not checked. [2024-11-03 05:42:45,578 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 05:42:45,652 INFO L134 CoverageAnalysis]: Checked inductivity of 546 backedges. 373 proven. 0 refuted. 0 times theorem prover too weak. 173 trivial. 0 not checked. [2024-11-03 05:42:45,653 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 05:42:45,653 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [270211004] [2024-11-03 05:42:45,653 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [270211004] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-03 05:42:45,653 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-03 05:42:45,653 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 7 [2024-11-03 05:42:45,653 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [7445443] [2024-11-03 05:42:45,653 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-03 05:42:45,653 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-03 05:42:45,653 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 05:42:45,654 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-03 05:42:45,654 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2024-11-03 05:42:45,654 INFO L87 Difference]: Start difference. First operand 1216 states and 1707 transitions. Second operand has 3 states, 3 states have (on average 46.333333333333336) internal successors, (139), 3 states have internal predecessors, (139), 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 05:42:45,757 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 05:42:45,757 INFO L93 Difference]: Finished difference Result 2411 states and 3389 transitions. [2024-11-03 05:42:45,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-03 05:42:45,758 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 46.333333333333336) internal successors, (139), 3 states have internal predecessors, (139), 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 238 [2024-11-03 05:42:45,758 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 05:42:45,761 INFO L225 Difference]: With dead ends: 2411 [2024-11-03 05:42:45,761 INFO L226 Difference]: Without dead ends: 1216 [2024-11-03 05:42:45,762 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 474 GetRequests, 469 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2024-11-03 05:42:45,763 INFO L432 NwaCegarLoop]: 113 mSDtfsCounter, 37 mSDsluCounter, 71 mSDsCounter, 0 mSdLazyCounter, 114 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 184 SdHoareTripleChecker+Invalid, 136 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 114 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-03 05:42:45,763 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [37 Valid, 184 Invalid, 136 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 114 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-03 05:42:45,765 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1216 states. [2024-11-03 05:42:45,786 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1216 to 1216. [2024-11-03 05:42:45,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1216 states, 1215 states have (on average 1.3950617283950617) internal successors, (1695), 1215 states have internal predecessors, (1695), 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 05:42:45,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1216 states to 1216 states and 1695 transitions. [2024-11-03 05:42:45,789 INFO L78 Accepts]: Start accepts. Automaton has 1216 states and 1695 transitions. Word has length 238 [2024-11-03 05:42:45,790 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 05:42:45,790 INFO L471 AbstractCegarLoop]: Abstraction has 1216 states and 1695 transitions. [2024-11-03 05:42:45,790 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 46.333333333333336) internal successors, (139), 3 states have internal predecessors, (139), 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 05:42:45,790 INFO L276 IsEmpty]: Start isEmpty. Operand 1216 states and 1695 transitions. [2024-11-03 05:42:45,792 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 240 [2024-11-03 05:42:45,792 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 05:42:45,792 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2024-11-03 05:42:45,795 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (21)] Ended with exit code 0 [2024-11-03 05:42:45,993 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt [2024-11-03 05:42:45,993 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 05:42:45,994 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 05:42:45,994 INFO L85 PathProgramCache]: Analyzing trace with hash 1212578931, now seen corresponding path program 1 times [2024-11-03 05:42:45,994 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 05:42:45,994 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1983952760] [2024-11-03 05:42:45,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 05:42:45,994 INFO L173 SolverBuilder]: Constructing external solver with command: cvc5 --incremental --print-success --lang smt [2024-11-03 05:42:45,994 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 [2024-11-03 05:42:45,996 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-03 05:42:45,996 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (22)] Waiting until timeout for monitored process [2024-11-03 05:42:46,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 05:42:46,100 INFO L255 TraceCheckSpWp]: Trace formula consists of 276 conjuncts, 32 conjuncts are in the unsatisfiable core [2024-11-03 05:42:46,104 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 05:42:46,254 INFO L134 CoverageAnalysis]: Checked inductivity of 538 backedges. 363 proven. 10 refuted. 0 times theorem prover too weak. 165 trivial. 0 not checked. [2024-11-03 05:42:46,254 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 05:42:46,309 INFO L134 CoverageAnalysis]: Checked inductivity of 538 backedges. 365 proven. 0 refuted. 0 times theorem prover too weak. 173 trivial. 0 not checked. [2024-11-03 05:42:46,309 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 05:42:46,309 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1983952760] [2024-11-03 05:42:46,309 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [1983952760] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-03 05:42:46,309 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-03 05:42:46,309 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 7 [2024-11-03 05:42:46,309 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2099791841] [2024-11-03 05:42:46,310 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-03 05:42:46,310 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-03 05:42:46,310 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 05:42:46,310 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-03 05:42:46,310 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2024-11-03 05:42:46,311 INFO L87 Difference]: Start difference. First operand 1216 states and 1695 transitions. Second operand has 3 states, 3 states have (on average 46.666666666666664) internal successors, (140), 3 states have internal predecessors, (140), 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 05:42:46,435 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 05:42:46,435 INFO L93 Difference]: Finished difference Result 2411 states and 3365 transitions. [2024-11-03 05:42:46,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-03 05:42:46,435 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 46.666666666666664) internal successors, (140), 3 states have internal predecessors, (140), 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 239 [2024-11-03 05:42:46,435 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 05:42:46,439 INFO L225 Difference]: With dead ends: 2411 [2024-11-03 05:42:46,439 INFO L226 Difference]: Without dead ends: 1216 [2024-11-03 05:42:46,440 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 476 GetRequests, 471 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2024-11-03 05:42:46,440 INFO L432 NwaCegarLoop]: 113 mSDtfsCounter, 39 mSDsluCounter, 71 mSDsCounter, 0 mSdLazyCounter, 112 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 184 SdHoareTripleChecker+Invalid, 134 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 112 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-03 05:42:46,440 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 184 Invalid, 134 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 112 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-03 05:42:46,442 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1216 states. [2024-11-03 05:42:46,469 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1216 to 1216. [2024-11-03 05:42:46,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1216 states, 1215 states have (on average 1.382716049382716) internal successors, (1680), 1215 states have internal predecessors, (1680), 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 05:42:46,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1216 states to 1216 states and 1680 transitions. [2024-11-03 05:42:46,473 INFO L78 Accepts]: Start accepts. Automaton has 1216 states and 1680 transitions. Word has length 239 [2024-11-03 05:42:46,474 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 05:42:46,474 INFO L471 AbstractCegarLoop]: Abstraction has 1216 states and 1680 transitions. [2024-11-03 05:42:46,474 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 46.666666666666664) internal successors, (140), 3 states have internal predecessors, (140), 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 05:42:46,474 INFO L276 IsEmpty]: Start isEmpty. Operand 1216 states and 1680 transitions. [2024-11-03 05:42:46,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 245 [2024-11-03 05:42:46,476 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 05:42:46,477 INFO L215 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 6, 6, 5, 5, 4, 4, 3, 3, 3, 3, 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] [2024-11-03 05:42:46,479 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (22)] Ended with exit code 0 [2024-11-03 05:42:46,678 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt [2024-11-03 05:42:46,679 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 05:42:46,679 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 05:42:46,679 INFO L85 PathProgramCache]: Analyzing trace with hash 557282683, now seen corresponding path program 1 times [2024-11-03 05:42:46,679 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 05:42:46,679 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [195646502] [2024-11-03 05:42:46,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 05:42:46,679 INFO L173 SolverBuilder]: Constructing external solver with command: cvc5 --incremental --print-success --lang smt [2024-11-03 05:42:46,680 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 [2024-11-03 05:42:46,681 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-03 05:42:46,681 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (23)] Waiting until timeout for monitored process [2024-11-03 05:42:46,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 05:42:46,777 INFO L255 TraceCheckSpWp]: Trace formula consists of 282 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-03 05:42:46,779 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 05:42:46,905 INFO L134 CoverageAnalysis]: Checked inductivity of 624 backedges. 398 proven. 0 refuted. 0 times theorem prover too weak. 226 trivial. 0 not checked. [2024-11-03 05:42:46,905 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 05:42:47,060 INFO L134 CoverageAnalysis]: Checked inductivity of 624 backedges. 398 proven. 0 refuted. 0 times theorem prover too weak. 226 trivial. 0 not checked. [2024-11-03 05:42:47,060 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 05:42:47,060 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [195646502] [2024-11-03 05:42:47,060 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [195646502] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-03 05:42:47,060 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-03 05:42:47,060 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2024-11-03 05:42:47,061 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [19678475] [2024-11-03 05:42:47,061 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-03 05:42:47,061 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-03 05:42:47,061 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 05:42:47,062 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-03 05:42:47,062 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-03 05:42:47,062 INFO L87 Difference]: Start difference. First operand 1216 states and 1680 transitions. Second operand has 3 states, 3 states have (on average 42.666666666666664) internal successors, (128), 3 states have internal predecessors, (128), 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 05:42:47,105 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 05:42:47,105 INFO L93 Difference]: Finished difference Result 3510 states and 4879 transitions. [2024-11-03 05:42:47,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-03 05:42:47,106 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 42.666666666666664) internal successors, (128), 3 states have internal predecessors, (128), 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 244 [2024-11-03 05:42:47,106 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 05:42:47,113 INFO L225 Difference]: With dead ends: 3510 [2024-11-03 05:42:47,113 INFO L226 Difference]: Without dead ends: 2315 [2024-11-03 05:42:47,114 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 486 GetRequests, 485 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 05:42:47,115 INFO L432 NwaCegarLoop]: 324 mSDtfsCounter, 106 mSDsluCounter, 167 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 106 SdHoareTripleChecker+Valid, 491 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-03 05:42:47,115 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [106 Valid, 491 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-03 05:42:47,117 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2315 states. [2024-11-03 05:42:47,157 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2315 to 2313. [2024-11-03 05:42:47,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2313 states, 2312 states have (on average 1.3910034602076125) internal successors, (3216), 2312 states have internal predecessors, (3216), 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 05:42:47,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2313 states to 2313 states and 3216 transitions. [2024-11-03 05:42:47,163 INFO L78 Accepts]: Start accepts. Automaton has 2313 states and 3216 transitions. Word has length 244 [2024-11-03 05:42:47,164 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 05:42:47,164 INFO L471 AbstractCegarLoop]: Abstraction has 2313 states and 3216 transitions. [2024-11-03 05:42:47,164 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 42.666666666666664) internal successors, (128), 3 states have internal predecessors, (128), 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 05:42:47,164 INFO L276 IsEmpty]: Start isEmpty. Operand 2313 states and 3216 transitions. [2024-11-03 05:42:47,168 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 252 [2024-11-03 05:42:47,168 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 05:42:47,168 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 7, 7, 5, 5, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-03 05:42:47,171 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (23)] Ended with exit code 0 [2024-11-03 05:42:47,368 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt [2024-11-03 05:42:47,369 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 05:42:47,369 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 05:42:47,369 INFO L85 PathProgramCache]: Analyzing trace with hash -148177426, now seen corresponding path program 1 times [2024-11-03 05:42:47,369 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 05:42:47,369 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [287486664] [2024-11-03 05:42:47,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 05:42:47,370 INFO L173 SolverBuilder]: Constructing external solver with command: cvc5 --incremental --print-success --lang smt [2024-11-03 05:42:47,370 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 [2024-11-03 05:42:47,371 INFO L229 MonitoredProcess]: Starting monitored process 24 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-03 05:42:47,371 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (24)] Waiting until timeout for monitored process [2024-11-03 05:42:47,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 05:42:47,482 INFO L255 TraceCheckSpWp]: Trace formula consists of 291 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-03 05:42:47,484 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 05:42:47,564 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 518 proven. 0 refuted. 0 times theorem prover too weak. 242 trivial. 0 not checked. [2024-11-03 05:42:47,564 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 05:42:47,637 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 518 proven. 0 refuted. 0 times theorem prover too weak. 242 trivial. 0 not checked. [2024-11-03 05:42:47,638 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 05:42:47,638 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [287486664] [2024-11-03 05:42:47,638 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [287486664] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-03 05:42:47,638 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-03 05:42:47,638 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2024-11-03 05:42:47,638 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [795621961] [2024-11-03 05:42:47,638 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-03 05:42:47,639 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-03 05:42:47,639 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 05:42:47,639 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-03 05:42:47,639 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-03 05:42:47,639 INFO L87 Difference]: Start difference. First operand 2313 states and 3216 transitions. Second operand has 3 states, 3 states have (on average 43.666666666666664) internal successors, (131), 3 states have internal predecessors, (131), 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 05:42:47,695 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 05:42:47,696 INFO L93 Difference]: Finished difference Result 6885 states and 9580 transitions. [2024-11-03 05:42:47,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-03 05:42:47,696 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 43.666666666666664) internal successors, (131), 3 states have internal predecessors, (131), 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 251 [2024-11-03 05:42:47,697 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 05:42:47,709 INFO L225 Difference]: With dead ends: 6885 [2024-11-03 05:42:47,709 INFO L226 Difference]: Without dead ends: 4593 [2024-11-03 05:42:47,712 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 500 GetRequests, 499 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 05:42:47,712 INFO L432 NwaCegarLoop]: 322 mSDtfsCounter, 125 mSDsluCounter, 166 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 125 SdHoareTripleChecker+Valid, 488 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-03 05:42:47,712 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [125 Valid, 488 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-03 05:42:47,715 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4593 states. [2024-11-03 05:42:47,800 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4593 to 4591. [2024-11-03 05:42:47,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4591 states, 4590 states have (on average 1.3891067538126363) internal successors, (6376), 4590 states have internal predecessors, (6376), 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 05:42:47,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4591 states to 4591 states and 6376 transitions. [2024-11-03 05:42:47,812 INFO L78 Accepts]: Start accepts. Automaton has 4591 states and 6376 transitions. Word has length 251 [2024-11-03 05:42:47,812 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 05:42:47,812 INFO L471 AbstractCegarLoop]: Abstraction has 4591 states and 6376 transitions. [2024-11-03 05:42:47,813 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 43.666666666666664) internal successors, (131), 3 states have internal predecessors, (131), 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 05:42:47,813 INFO L276 IsEmpty]: Start isEmpty. Operand 4591 states and 6376 transitions. [2024-11-03 05:42:47,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 253 [2024-11-03 05:42:47,820 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 05:42:47,820 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 7, 7, 5, 5, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-03 05:42:47,822 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (24)] Ended with exit code 0 [2024-11-03 05:42:48,021 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt [2024-11-03 05:42:48,021 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 05:42:48,021 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 05:42:48,021 INFO L85 PathProgramCache]: Analyzing trace with hash 183836775, now seen corresponding path program 1 times [2024-11-03 05:42:48,022 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 05:42:48,022 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1238835050] [2024-11-03 05:42:48,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 05:42:48,022 INFO L173 SolverBuilder]: Constructing external solver with command: cvc5 --incremental --print-success --lang smt [2024-11-03 05:42:48,022 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 [2024-11-03 05:42:48,023 INFO L229 MonitoredProcess]: Starting monitored process 25 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-03 05:42:48,024 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (25)] Waiting until timeout for monitored process [2024-11-03 05:42:48,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 05:42:48,120 INFO L255 TraceCheckSpWp]: Trace formula consists of 292 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-03 05:42:48,122 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 05:42:48,178 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 167 proven. 0 refuted. 0 times theorem prover too weak. 593 trivial. 0 not checked. [2024-11-03 05:42:48,178 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 05:42:48,207 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 167 proven. 0 refuted. 0 times theorem prover too weak. 593 trivial. 0 not checked. [2024-11-03 05:42:48,207 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 05:42:48,207 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1238835050] [2024-11-03 05:42:48,207 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [1238835050] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-03 05:42:48,207 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-03 05:42:48,207 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2024-11-03 05:42:48,207 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1672204490] [2024-11-03 05:42:48,208 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-03 05:42:48,208 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-03 05:42:48,208 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 05:42:48,208 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-03 05:42:48,208 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-03 05:42:48,209 INFO L87 Difference]: Start difference. First operand 4591 states and 6376 transitions. Second operand has 3 states, 3 states have (on average 35.0) internal successors, (105), 3 states have internal predecessors, (105), 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 05:42:48,389 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 05:42:48,389 INFO L93 Difference]: Finished difference Result 9161 states and 12727 transitions. [2024-11-03 05:42:48,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-03 05:42:48,390 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 35.0) internal successors, (105), 3 states have internal predecessors, (105), 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 252 [2024-11-03 05:42:48,390 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 05:42:48,411 INFO L225 Difference]: With dead ends: 9161 [2024-11-03 05:42:48,411 INFO L226 Difference]: Without dead ends: 4591 [2024-11-03 05:42:48,418 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 502 GetRequests, 501 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 05:42:48,419 INFO L432 NwaCegarLoop]: 185 mSDtfsCounter, 9 mSDsluCounter, 87 mSDsCounter, 0 mSdLazyCounter, 108 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 272 SdHoareTripleChecker+Invalid, 114 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 108 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-03 05:42:48,419 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 272 Invalid, 114 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 108 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-03 05:42:48,423 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4591 states. [2024-11-03 05:42:48,513 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4591 to 4591. [2024-11-03 05:42:48,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4591 states, 4590 states have (on average 1.3734204793028322) internal successors, (6304), 4590 states have internal predecessors, (6304), 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 05:42:48,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4591 states to 4591 states and 6304 transitions. [2024-11-03 05:42:48,526 INFO L78 Accepts]: Start accepts. Automaton has 4591 states and 6304 transitions. Word has length 252 [2024-11-03 05:42:48,526 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 05:42:48,526 INFO L471 AbstractCegarLoop]: Abstraction has 4591 states and 6304 transitions. [2024-11-03 05:42:48,526 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.0) internal successors, (105), 3 states have internal predecessors, (105), 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 05:42:48,527 INFO L276 IsEmpty]: Start isEmpty. Operand 4591 states and 6304 transitions. [2024-11-03 05:42:48,532 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 254 [2024-11-03 05:42:48,532 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 05:42:48,533 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2024-11-03 05:42:48,536 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (25)] Ended with exit code 0 [2024-11-03 05:42:48,733 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt [2024-11-03 05:42:48,733 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 05:42:48,734 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 05:42:48,734 INFO L85 PathProgramCache]: Analyzing trace with hash -482554043, now seen corresponding path program 1 times [2024-11-03 05:42:48,734 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 05:42:48,734 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1455815831] [2024-11-03 05:42:48,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 05:42:48,734 INFO L173 SolverBuilder]: Constructing external solver with command: cvc5 --incremental --print-success --lang smt [2024-11-03 05:42:48,735 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 [2024-11-03 05:42:48,736 INFO L229 MonitoredProcess]: Starting monitored process 26 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-03 05:42:48,737 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (26)] Waiting until timeout for monitored process [2024-11-03 05:42:48,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 05:42:48,844 INFO L255 TraceCheckSpWp]: Trace formula consists of 289 conjuncts, 41 conjuncts are in the unsatisfiable core [2024-11-03 05:42:48,849 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 05:42:49,041 INFO L134 CoverageAnalysis]: Checked inductivity of 581 backedges. 418 proven. 46 refuted. 0 times theorem prover too weak. 117 trivial. 0 not checked. [2024-11-03 05:42:49,042 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 05:42:49,112 INFO L134 CoverageAnalysis]: Checked inductivity of 581 backedges. 430 proven. 16 refuted. 0 times theorem prover too weak. 135 trivial. 0 not checked. [2024-11-03 05:42:49,112 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 05:42:49,112 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1455815831] [2024-11-03 05:42:49,112 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [1455815831] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-03 05:42:49,112 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-03 05:42:49,112 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 4] total 12 [2024-11-03 05:42:49,112 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [501331600] [2024-11-03 05:42:49,112 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-03 05:42:49,113 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-03 05:42:49,113 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 05:42:49,113 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-03 05:42:49,113 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2024-11-03 05:42:49,114 INFO L87 Difference]: Start difference. First operand 4591 states and 6304 transitions. Second operand has 12 states, 12 states have (on average 19.25) internal successors, (231), 12 states have internal predecessors, (231), 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 05:42:52,311 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.05s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-03 05:42:55,366 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.04s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-03 05:42:57,481 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.79s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-03 05:43:00,951 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.98s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-03 05:43:04,172 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.16s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-03 05:43:08,731 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.99s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-03 05:43:12,321 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.79s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-03 05:43:14,700 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.94s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-03 05:43:15,798 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-03 05:43:18,275 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.31s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-03 05:43:21,015 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.68s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-03 05:43:23,923 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.57s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-03 05:43:26,657 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.64s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-03 05:43:28,573 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.84s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-03 05:43:31,229 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.94s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-03 05:43:32,352 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-03 05:43:35,282 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.68s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-03 05:43:38,059 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.75s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-03 05:43:42,586 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.97s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-03 05:43:47,217 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.50s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-03 05:43:49,987 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.72s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-03 05:43:52,913 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.47s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-03 05:43:56,132 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.80s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-03 05:43:59,367 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.84s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-03 05:44:02,438 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.86s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-03 05:44:04,091 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.61s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-03 05:44:07,100 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.56s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0]