/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_alt.BV.c.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.5-dev-b75d321-m [2024-11-03 05:42:30,522 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-03 05:42:30,590 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 05:42:30,595 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-03 05:42:30,596 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-03 05:42:30,622 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-03 05:42:30,623 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-03 05:42:30,623 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-03 05:42:30,624 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-03 05:42:30,624 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-03 05:42:30,624 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-03 05:42:30,625 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-03 05:42:30,627 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-03 05:42:30,629 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-03 05:42:30,629 INFO L153 SettingsManager]: * Use SBE=true [2024-11-03 05:42:30,630 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-03 05:42:30,630 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-03 05:42:30,630 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-03 05:42:30,631 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-03 05:42:30,631 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-03 05:42:30,631 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-03 05:42:30,635 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-03 05:42:30,636 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-03 05:42:30,636 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-03 05:42:30,636 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-03 05:42:30,636 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-03 05:42:30,636 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-03 05:42:30,637 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-03 05:42:30,637 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-03 05:42:30,637 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-03 05:42:30,637 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-03 05:42:30,638 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-03 05:42:30,638 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-03 05:42:30,638 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-03 05:42:30,638 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-03 05:42:30,639 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-03 05:42:30,639 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-03 05:42:30,641 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-03 05:42:30,641 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-11-03 05:42:30,641 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-03 05:42:30,642 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-03 05:42:30,642 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-03 05:42:30,642 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-03 05:42:30,642 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-03 05:42:30,642 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Allow undefined functions -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Command for external solver -> cvc5 --incremental --print-success --lang smt [2024-11-03 05:42:30,865 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-03 05:42:30,891 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-03 05:42:30,896 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-03 05:42:30,897 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-03 05:42:30,897 INFO L274 PluginConnector]: CDTParser initialized [2024-11-03 05:42:30,899 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/bitvector/s3_srvr_2a_alt.BV.c.cil.c [2024-11-03 05:42:32,422 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-03 05:42:32,617 INFO L384 CDTParser]: Found 1 translation units. [2024-11-03 05:42:32,617 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/bitvector/s3_srvr_2a_alt.BV.c.cil.c [2024-11-03 05:42:32,640 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3f281d421/3e6b5c0c710a40f9991fad5cd15f5d0b/FLAG045dd6b0d [2024-11-03 05:42:32,993 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3f281d421/3e6b5c0c710a40f9991fad5cd15f5d0b [2024-11-03 05:42:32,996 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-03 05:42:32,997 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-11-03 05:42:32,998 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-03 05:42:32,998 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-03 05:42:33,003 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-03 05:42:33,004 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 05:42:32" (1/1) ... [2024-11-03 05:42:33,005 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@444ed0af and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:42:33, skipping insertion in model container [2024-11-03 05:42:33,005 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 05:42:32" (1/1) ... [2024-11-03 05:42:33,058 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-03 05:42:33,306 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_alt.BV.c.cil.c[44811,44824] [2024-11-03 05:42:33,317 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-03 05:42:33,328 INFO L200 MainTranslator]: Completed pre-run [2024-11-03 05:42:33,382 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_alt.BV.c.cil.c[44811,44824] [2024-11-03 05:42:33,385 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-03 05:42:33,401 INFO L204 MainTranslator]: Completed translation [2024-11-03 05:42:33,402 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:42:33 WrapperNode [2024-11-03 05:42:33,402 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-03 05:42:33,403 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-03 05:42:33,403 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-03 05:42:33,403 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-03 05:42:33,410 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:42:33" (1/1) ... [2024-11-03 05:42:33,421 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:42:33" (1/1) ... [2024-11-03 05:42:33,458 INFO L138 Inliner]: procedures = 15, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 526 [2024-11-03 05:42:33,458 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-03 05:42:33,459 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-03 05:42:33,463 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-03 05:42:33,463 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-03 05:42:33,480 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:42:33" (1/1) ... [2024-11-03 05:42:33,480 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:42:33" (1/1) ... [2024-11-03 05:42:33,489 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:42:33" (1/1) ... [2024-11-03 05:42:33,515 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 05:42:33,515 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:42:33" (1/1) ... [2024-11-03 05:42:33,515 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:42:33" (1/1) ... [2024-11-03 05:42:33,525 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:42:33" (1/1) ... [2024-11-03 05:42:33,531 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:42:33" (1/1) ... [2024-11-03 05:42:33,533 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:42:33" (1/1) ... [2024-11-03 05:42:33,535 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:42:33" (1/1) ... [2024-11-03 05:42:33,538 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-03 05:42:33,539 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-03 05:42:33,539 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-03 05:42:33,539 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-03 05:42:33,540 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:42:33" (1/1) ... [2024-11-03 05:42:33,549 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-03 05:42:33,565 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-03 05:42:33,580 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 05:42:33,583 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 05:42:33,613 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-03 05:42:33,614 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-03 05:42:33,614 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-03 05:42:33,614 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-03 05:42:33,731 INFO L238 CfgBuilder]: Building ICFG [2024-11-03 05:42:33,733 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-03 05:42:33,753 WARN L781 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2024-11-03 05:42:34,267 INFO L735 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##90: assume false; [2024-11-03 05:42:34,269 INFO L735 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##91: assume !false; [2024-11-03 05:42:34,317 INFO L? ?]: Removed 118 outVars from TransFormulas that were not future-live. [2024-11-03 05:42:34,318 INFO L287 CfgBuilder]: Performing block encoding [2024-11-03 05:42:34,333 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-03 05:42:34,334 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-03 05:42:34,334 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 05:42:34 BoogieIcfgContainer [2024-11-03 05:42:34,334 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-03 05:42:34,338 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-03 05:42:34,338 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-03 05:42:34,341 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-03 05:42:34,342 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 05:42:32" (1/3) ... [2024-11-03 05:42:34,343 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f66437e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 05:42:34, skipping insertion in model container [2024-11-03 05:42:34,343 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:42:33" (2/3) ... [2024-11-03 05:42:34,343 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f66437e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 05:42:34, skipping insertion in model container [2024-11-03 05:42:34,343 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 05:42:34" (3/3) ... [2024-11-03 05:42:34,344 INFO L112 eAbstractionObserver]: Analyzing ICFG s3_srvr_2a_alt.BV.c.cil.c [2024-11-03 05:42:34,358 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-03 05:42:34,358 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-03 05:42:34,411 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-03 05:42:34,417 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;@2d776d8e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-03 05:42:34,417 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-03 05:42:34,421 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 05:42:34,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2024-11-03 05:42:34,429 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 05:42:34,429 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 05:42:34,430 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 05:42:34,434 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 05:42:34,435 INFO L85 PathProgramCache]: Analyzing trace with hash 1632002022, now seen corresponding path program 1 times [2024-11-03 05:42:34,443 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 05:42:34,443 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1042482533] [2024-11-03 05:42:34,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 05:42:34,445 INFO L173 SolverBuilder]: Constructing external solver with command: cvc5 --incremental --print-success --lang smt [2024-11-03 05:42:34,446 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 [2024-11-03 05:42:34,449 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 05:42:34,451 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 05:42:34,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 05:42:34,555 INFO L255 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-03 05:42:34,561 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 05:42:34,745 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 05:42:34,745 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 05:42:34,875 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 05:42:34,877 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 05:42:34,877 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1042482533] [2024-11-03 05:42:34,879 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [1042482533] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-03 05:42:34,879 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-03 05:42:34,879 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2024-11-03 05:42:34,882 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [374340558] [2024-11-03 05:42:34,883 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-03 05:42:34,887 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-03 05:42:34,888 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 05:42:34,910 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-03 05:42:34,911 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-03 05:42:34,913 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 05:42:35,411 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 05:42:35,411 INFO L93 Difference]: Finished difference Result 322 states and 562 transitions. [2024-11-03 05:42:35,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-03 05:42:35,415 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 05:42:35,416 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 05:42:35,424 INFO L225 Difference]: With dead ends: 322 [2024-11-03 05:42:35,424 INFO L226 Difference]: Without dead ends: 167 [2024-11-03 05:42:35,428 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 05:42:35,435 INFO L432 NwaCegarLoop]: 222 mSDtfsCounter, 36 mSDsluCounter, 235 mSDsCounter, 0 mSdLazyCounter, 330 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s 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 05:42:35,437 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 05:42:35,455 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 167 states. [2024-11-03 05:42:35,482 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 167 to 167. [2024-11-03 05:42:35,484 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 05:42:35,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167 states to 167 states and 259 transitions. [2024-11-03 05:42:35,487 INFO L78 Accepts]: Start accepts. Automaton has 167 states and 259 transitions. Word has length 44 [2024-11-03 05:42:35,487 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 05:42:35,487 INFO L471 AbstractCegarLoop]: Abstraction has 167 states and 259 transitions. [2024-11-03 05:42:35,487 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 05:42:35,488 INFO L276 IsEmpty]: Start isEmpty. Operand 167 states and 259 transitions. [2024-11-03 05:42:35,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2024-11-03 05:42:35,491 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 05:42:35,491 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 05:42:35,496 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (2)] Ended with exit code 0 [2024-11-03 05:42:35,692 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 05:42:35,692 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 05:42:35,693 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 05:42:35,693 INFO L85 PathProgramCache]: Analyzing trace with hash 2033157093, now seen corresponding path program 1 times [2024-11-03 05:42:35,694 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 05:42:35,694 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [877006260] [2024-11-03 05:42:35,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 05:42:35,694 INFO L173 SolverBuilder]: Constructing external solver with command: cvc5 --incremental --print-success --lang smt [2024-11-03 05:42:35,694 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 [2024-11-03 05:42:35,700 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 05:42:35,701 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 05:42:35,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 05:42:35,789 INFO L255 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 21 conjuncts are in the unsatisfiable core [2024-11-03 05:42:35,796 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 05:42:36,007 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 05:42:36,008 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 05:42:36,089 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 05:42:36,090 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 05:42:36,090 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [877006260] [2024-11-03 05:42:36,090 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [877006260] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-03 05:42:36,090 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-03 05:42:36,090 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2024-11-03 05:42:36,090 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1747528772] [2024-11-03 05:42:36,091 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-03 05:42:36,092 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-03 05:42:36,092 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 05:42:36,093 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-03 05:42:36,093 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-03 05:42:36,093 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 05:42:36,127 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 05:42:36,127 INFO L93 Difference]: Finished difference Result 312 states and 491 transitions. [2024-11-03 05:42:36,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-03 05:42:36,129 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 05:42:36,129 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 05:42:36,132 INFO L225 Difference]: With dead ends: 312 [2024-11-03 05:42:36,132 INFO L226 Difference]: Without dead ends: 310 [2024-11-03 05:42:36,135 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 05:42:36,136 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 05:42:36,137 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 05:42:36,138 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 310 states. [2024-11-03 05:42:36,159 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 310 to 310. [2024-11-03 05:42:36,160 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 05:42:36,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 310 states to 310 states and 489 transitions. [2024-11-03 05:42:36,161 INFO L78 Accepts]: Start accepts. Automaton has 310 states and 489 transitions. Word has length 60 [2024-11-03 05:42:36,162 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 05:42:36,162 INFO L471 AbstractCegarLoop]: Abstraction has 310 states and 489 transitions. [2024-11-03 05:42:36,162 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 05:42:36,162 INFO L276 IsEmpty]: Start isEmpty. Operand 310 states and 489 transitions. [2024-11-03 05:42:36,165 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2024-11-03 05:42:36,165 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 05:42:36,166 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 05:42:36,169 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (3)] Ended with exit code 0 [2024-11-03 05:42:36,366 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 05:42:36,367 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 05:42:36,367 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 05:42:36,367 INFO L85 PathProgramCache]: Analyzing trace with hash 551170296, now seen corresponding path program 1 times [2024-11-03 05:42:36,368 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 05:42:36,368 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1454607607] [2024-11-03 05:42:36,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 05:42:36,368 INFO L173 SolverBuilder]: Constructing external solver with command: cvc5 --incremental --print-success --lang smt [2024-11-03 05:42:36,369 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 [2024-11-03 05:42:36,372 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 05:42:36,374 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 05:42:36,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 05:42:36,466 INFO L255 TraceCheckSpWp]: Trace formula consists of 110 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-03 05:42:36,468 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 05:42:36,505 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 05:42:36,505 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 05:42:36,539 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 05:42:36,539 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 05:42:36,540 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1454607607] [2024-11-03 05:42:36,540 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [1454607607] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-03 05:42:36,540 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-03 05:42:36,540 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2024-11-03 05:42:36,540 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1522087238] [2024-11-03 05:42:36,540 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-03 05:42:36,541 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-03 05:42:36,541 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 05:42:36,542 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-03 05:42:36,542 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-03 05:42:36,542 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 05:42:36,571 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 05:42:36,571 INFO L93 Difference]: Finished difference Result 743 states and 1183 transitions. [2024-11-03 05:42:36,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-03 05:42:36,572 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 05:42:36,572 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 05:42:36,574 INFO L225 Difference]: With dead ends: 743 [2024-11-03 05:42:36,574 INFO L226 Difference]: Without dead ends: 452 [2024-11-03 05:42:36,576 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 05:42:36,577 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 05:42:36,577 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 05:42:36,579 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 452 states. [2024-11-03 05:42:36,609 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 452 to 452. [2024-11-03 05:42:36,610 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 05:42:36,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 452 states to 452 states and 714 transitions. [2024-11-03 05:42:36,612 INFO L78 Accepts]: Start accepts. Automaton has 452 states and 714 transitions. Word has length 83 [2024-11-03 05:42:36,612 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 05:42:36,612 INFO L471 AbstractCegarLoop]: Abstraction has 452 states and 714 transitions. [2024-11-03 05:42:36,612 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 05:42:36,613 INFO L276 IsEmpty]: Start isEmpty. Operand 452 states and 714 transitions. [2024-11-03 05:42:36,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2024-11-03 05:42:36,620 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 05:42:36,620 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 05:42:36,629 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (4)] Forceful destruction successful, exit code 0 [2024-11-03 05:42:36,821 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 05:42:36,821 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 05:42:36,822 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 05:42:36,822 INFO L85 PathProgramCache]: Analyzing trace with hash -1135009542, now seen corresponding path program 1 times [2024-11-03 05:42:36,822 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 05:42:36,822 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [975568231] [2024-11-03 05:42:36,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 05:42:36,823 INFO L173 SolverBuilder]: Constructing external solver with command: cvc5 --incremental --print-success --lang smt [2024-11-03 05:42:36,823 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 [2024-11-03 05:42:36,826 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 05:42:36,827 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 05:42:36,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 05:42:36,903 INFO L255 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-03 05:42:36,905 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 05:42:36,951 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 05:42:36,951 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 05:42:36,990 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 05:42:36,991 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 05:42:36,991 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [975568231] [2024-11-03 05:42:36,991 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [975568231] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-03 05:42:36,991 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-03 05:42:36,991 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2024-11-03 05:42:36,992 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [146670287] [2024-11-03 05:42:36,992 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-03 05:42:36,992 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-03 05:42:36,992 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 05:42:36,993 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-03 05:42:36,993 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-03 05:42:36,993 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 05:42:37,017 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 05:42:37,017 INFO L93 Difference]: Finished difference Result 887 states and 1408 transitions. [2024-11-03 05:42:37,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-03 05:42:37,018 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 05:42:37,018 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 05:42:37,020 INFO L225 Difference]: With dead ends: 887 [2024-11-03 05:42:37,021 INFO L226 Difference]: Without dead ends: 454 [2024-11-03 05:42:37,022 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 05:42:37,023 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 05:42:37,023 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 05:42:37,024 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 454 states. [2024-11-03 05:42:37,034 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 454 to 454. [2024-11-03 05:42:37,035 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 05:42:37,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 454 states to 454 states and 716 transitions. [2024-11-03 05:42:37,037 INFO L78 Accepts]: Start accepts. Automaton has 454 states and 716 transitions. Word has length 83 [2024-11-03 05:42:37,037 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 05:42:37,037 INFO L471 AbstractCegarLoop]: Abstraction has 454 states and 716 transitions. [2024-11-03 05:42:37,037 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 05:42:37,037 INFO L276 IsEmpty]: Start isEmpty. Operand 454 states and 716 transitions. [2024-11-03 05:42:37,039 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2024-11-03 05:42:37,040 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 05:42:37,040 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 05:42:37,043 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (5)] Forceful destruction successful, exit code 0 [2024-11-03 05:42:37,241 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 05:42:37,242 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 05:42:37,242 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 05:42:37,242 INFO L85 PathProgramCache]: Analyzing trace with hash 1488639428, now seen corresponding path program 1 times [2024-11-03 05:42:37,243 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 05:42:37,243 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1988493593] [2024-11-03 05:42:37,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 05:42:37,243 INFO L173 SolverBuilder]: Constructing external solver with command: cvc5 --incremental --print-success --lang smt [2024-11-03 05:42:37,243 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 [2024-11-03 05:42:37,246 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 05:42:37,247 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 05:42:37,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 05:42:37,340 INFO L255 TraceCheckSpWp]: Trace formula consists of 133 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-03 05:42:37,344 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 05:42:37,406 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 05:42:37,406 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 05:42:37,477 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 05:42:37,477 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 05:42:37,477 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1988493593] [2024-11-03 05:42:37,478 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [1988493593] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-03 05:42:37,478 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-03 05:42:37,478 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2024-11-03 05:42:37,478 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [368425889] [2024-11-03 05:42:37,478 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-03 05:42:37,479 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-03 05:42:37,479 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 05:42:37,479 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-03 05:42:37,479 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-03 05:42:37,479 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 05:42:37,649 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 05:42:37,649 INFO L93 Difference]: Finished difference Result 1012 states and 1625 transitions. [2024-11-03 05:42:37,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-03 05:42:37,650 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 05:42:37,650 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 05:42:37,653 INFO L225 Difference]: With dead ends: 1012 [2024-11-03 05:42:37,653 INFO L226 Difference]: Without dead ends: 579 [2024-11-03 05:42:37,654 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 05:42:37,655 INFO L432 NwaCegarLoop]: 185 mSDtfsCounter, 10 mSDsluCounter, 87 mSDsCounter, 0 mSdLazyCounter, 120 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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 05:42:37,655 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 05:42:37,656 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 579 states. [2024-11-03 05:42:37,672 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 579 to 579. [2024-11-03 05:42:37,673 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 05:42:37,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 579 states to 579 states and 856 transitions. [2024-11-03 05:42:37,678 INFO L78 Accepts]: Start accepts. Automaton has 579 states and 856 transitions. Word has length 104 [2024-11-03 05:42:37,678 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 05:42:37,678 INFO L471 AbstractCegarLoop]: Abstraction has 579 states and 856 transitions. [2024-11-03 05:42:37,679 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 05:42:37,679 INFO L276 IsEmpty]: Start isEmpty. Operand 579 states and 856 transitions. [2024-11-03 05:42:37,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2024-11-03 05:42:37,680 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 05:42:37,681 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 05:42:37,686 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (6)] Ended with exit code 0 [2024-11-03 05:42:37,885 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 05:42:37,886 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 05:42:37,886 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 05:42:37,887 INFO L85 PathProgramCache]: Analyzing trace with hash -1094933688, now seen corresponding path program 1 times [2024-11-03 05:42:37,887 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 05:42:37,887 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [876532047] [2024-11-03 05:42:37,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 05:42:37,887 INFO L173 SolverBuilder]: Constructing external solver with command: cvc5 --incremental --print-success --lang smt [2024-11-03 05:42:37,887 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 [2024-11-03 05:42:37,888 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 05:42:37,904 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 05:42:37,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 05:42:37,983 INFO L255 TraceCheckSpWp]: Trace formula consists of 133 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-03 05:42:37,985 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 05:42:38,020 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 05:42:38,020 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 05:42:38,053 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 05:42:38,054 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 05:42:38,054 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [876532047] [2024-11-03 05:42:38,054 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [876532047] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-03 05:42:38,054 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-03 05:42:38,054 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2024-11-03 05:42:38,054 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1405125373] [2024-11-03 05:42:38,054 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-03 05:42:38,055 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-03 05:42:38,055 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 05:42:38,056 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-03 05:42:38,057 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-03 05:42:38,057 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 05:42:38,178 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 05:42:38,178 INFO L93 Difference]: Finished difference Result 1183 states and 1761 transitions. [2024-11-03 05:42:38,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-03 05:42:38,179 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 05:42:38,180 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 05:42:38,182 INFO L225 Difference]: With dead ends: 1183 [2024-11-03 05:42:38,182 INFO L226 Difference]: Without dead ends: 625 [2024-11-03 05:42:38,183 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 05:42:38,188 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 05:42:38,188 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 05:42:38,189 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 625 states. [2024-11-03 05:42:38,199 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 625 to 625. [2024-11-03 05:42:38,200 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 05:42:38,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 625 states to 625 states and 912 transitions. [2024-11-03 05:42:38,202 INFO L78 Accepts]: Start accepts. Automaton has 625 states and 912 transitions. Word has length 104 [2024-11-03 05:42:38,202 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 05:42:38,203 INFO L471 AbstractCegarLoop]: Abstraction has 625 states and 912 transitions. [2024-11-03 05:42:38,203 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 05:42:38,203 INFO L276 IsEmpty]: Start isEmpty. Operand 625 states and 912 transitions. [2024-11-03 05:42:38,205 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2024-11-03 05:42:38,205 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 05:42:38,205 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 05:42:38,208 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 05:42:38,408 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 05:42:38,409 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 05:42:38,409 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 05:42:38,409 INFO L85 PathProgramCache]: Analyzing trace with hash -543286292, now seen corresponding path program 1 times [2024-11-03 05:42:38,410 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 05:42:38,410 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1659494767] [2024-11-03 05:42:38,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 05:42:38,410 INFO L173 SolverBuilder]: Constructing external solver with command: cvc5 --incremental --print-success --lang smt [2024-11-03 05:42:38,410 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 [2024-11-03 05:42:38,411 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 05:42:38,412 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 05:42:38,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 05:42:38,493 INFO L255 TraceCheckSpWp]: Trace formula consists of 177 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-03 05:42:38,496 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 05:42:38,533 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 05:42:38,533 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 05:42:38,566 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 05:42:38,566 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 05:42:38,566 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1659494767] [2024-11-03 05:42:38,567 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [1659494767] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-03 05:42:38,567 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-03 05:42:38,567 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2024-11-03 05:42:38,567 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [342363269] [2024-11-03 05:42:38,567 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-03 05:42:38,567 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-03 05:42:38,568 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 05:42:38,568 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-03 05:42:38,568 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-03 05:42:38,568 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 05:42:38,699 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 05:42:38,700 INFO L93 Difference]: Finished difference Result 1304 states and 1922 transitions. [2024-11-03 05:42:38,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-03 05:42:38,700 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 05:42:38,701 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 05:42:38,703 INFO L225 Difference]: With dead ends: 1304 [2024-11-03 05:42:38,703 INFO L226 Difference]: Without dead ends: 700 [2024-11-03 05:42:38,704 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 05:42:38,704 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 05:42:38,705 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 05:42:38,706 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 700 states. [2024-11-03 05:42:38,715 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 700 to 700. [2024-11-03 05:42:38,716 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 05:42:38,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 700 states to 700 states and 1002 transitions. [2024-11-03 05:42:38,719 INFO L78 Accepts]: Start accepts. Automaton has 700 states and 1002 transitions. Word has length 144 [2024-11-03 05:42:38,719 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 05:42:38,719 INFO L471 AbstractCegarLoop]: Abstraction has 700 states and 1002 transitions. [2024-11-03 05:42:38,719 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 05:42:38,719 INFO L276 IsEmpty]: Start isEmpty. Operand 700 states and 1002 transitions. [2024-11-03 05:42:38,721 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2024-11-03 05:42:38,721 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 05:42:38,721 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 05:42:38,724 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (8)] Forceful destruction successful, exit code 0 [2024-11-03 05:42:38,922 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 05:42:38,922 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 05:42:38,923 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 05:42:38,923 INFO L85 PathProgramCache]: Analyzing trace with hash 1067369758, now seen corresponding path program 1 times [2024-11-03 05:42:38,923 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 05:42:38,923 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1644057354] [2024-11-03 05:42:38,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 05:42:38,923 INFO L173 SolverBuilder]: Constructing external solver with command: cvc5 --incremental --print-success --lang smt [2024-11-03 05:42:38,924 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 [2024-11-03 05:42:38,924 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 05:42:38,925 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 05:42:39,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 05:42:39,016 INFO L255 TraceCheckSpWp]: Trace formula consists of 217 conjuncts, 32 conjuncts are in the unsatisfiable core [2024-11-03 05:42:39,021 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 05:42:41,325 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 05:42:41,406 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 05:42:41,406 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 05:42:41,444 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 05:42:41,444 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 05:42:41,444 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1644057354] [2024-11-03 05:42:41,445 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [1644057354] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-03 05:42:41,445 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-03 05:42:41,445 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 7 [2024-11-03 05:42:41,446 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [845567311] [2024-11-03 05:42:41,446 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-03 05:42:41,446 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-03 05:42:41,446 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 05:42:41,447 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-03 05:42:41,447 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=19, Unknown=1, NotChecked=8, Total=42 [2024-11-03 05:42:41,448 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 05:42:41,598 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 05:42:41,598 INFO L93 Difference]: Finished difference Result 1442 states and 2078 transitions. [2024-11-03 05:42:41,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-03 05:42:41,599 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 05:42:41,599 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 05:42:41,602 INFO L225 Difference]: With dead ends: 1442 [2024-11-03 05:42:41,602 INFO L226 Difference]: Without dead ends: 763 [2024-11-03 05:42:41,603 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 364 GetRequests, 359 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=14, Invalid=19, Unknown=1, NotChecked=8, Total=42 [2024-11-03 05:42:41,604 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 05:42:41,605 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 05:42:41,606 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 763 states. [2024-11-03 05:42:41,619 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 763 to 763. [2024-11-03 05:42:41,620 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 05:42:41,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 763 states to 763 states and 1095 transitions. [2024-11-03 05:42:41,625 INFO L78 Accepts]: Start accepts. Automaton has 763 states and 1095 transitions. Word has length 183 [2024-11-03 05:42:41,625 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 05:42:41,626 INFO L471 AbstractCegarLoop]: Abstraction has 763 states and 1095 transitions. [2024-11-03 05:42:41,626 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 05:42:41,626 INFO L276 IsEmpty]: Start isEmpty. Operand 763 states and 1095 transitions. [2024-11-03 05:42:41,628 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2024-11-03 05:42:41,628 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 05:42:41,628 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 05:42:41,632 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 05:42:41,831 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 05:42:41,832 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 05:42:41,832 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 05:42:41,832 INFO L85 PathProgramCache]: Analyzing trace with hash -600821299, now seen corresponding path program 1 times [2024-11-03 05:42:41,832 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 05:42:41,832 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2019159279] [2024-11-03 05:42:41,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 05:42:41,833 INFO L173 SolverBuilder]: Constructing external solver with command: cvc5 --incremental --print-success --lang smt [2024-11-03 05:42:41,833 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 [2024-11-03 05:42:41,836 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 05:42:41,836 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 05:42:41,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 05:42:41,927 INFO L255 TraceCheckSpWp]: Trace formula consists of 218 conjuncts, 32 conjuncts are in the unsatisfiable core [2024-11-03 05:42:41,932 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 05:42:42,172 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 05:42:42,172 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 05:42:42,273 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 05:42:42,273 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 05:42:42,274 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2019159279] [2024-11-03 05:42:42,274 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [2019159279] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-03 05:42:42,274 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-03 05:42:42,274 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 7 [2024-11-03 05:42:42,274 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1350441165] [2024-11-03 05:42:42,274 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-03 05:42:42,274 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-03 05:42:42,275 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 05:42:42,275 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-03 05:42:42,276 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2024-11-03 05:42:42,276 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 05:42:42,400 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 05:42:42,400 INFO L93 Difference]: Finished difference Result 1571 states and 2270 transitions. [2024-11-03 05:42:42,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-03 05:42:42,400 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 05:42:42,401 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 05:42:42,403 INFO L225 Difference]: With dead ends: 1571 [2024-11-03 05:42:42,403 INFO L226 Difference]: Without dead ends: 829 [2024-11-03 05:42:42,404 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 366 GetRequests, 361 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 05:42:42,405 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 05:42:42,406 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 05:42:42,407 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 829 states. [2024-11-03 05:42:42,420 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 829 to 829. [2024-11-03 05:42:42,421 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 05:42:42,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 829 states to 829 states and 1194 transitions. [2024-11-03 05:42:42,424 INFO L78 Accepts]: Start accepts. Automaton has 829 states and 1194 transitions. Word has length 184 [2024-11-03 05:42:42,424 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 05:42:42,424 INFO L471 AbstractCegarLoop]: Abstraction has 829 states and 1194 transitions. [2024-11-03 05:42:42,424 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 05:42:42,424 INFO L276 IsEmpty]: Start isEmpty. Operand 829 states and 1194 transitions. [2024-11-03 05:42:42,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2024-11-03 05:42:42,426 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 05:42:42,427 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 05:42:42,429 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (10)] Ended with exit code 0 [2024-11-03 05:42:42,628 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 05:42:42,628 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 05:42:42,629 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 05:42:42,629 INFO L85 PathProgramCache]: Analyzing trace with hash -390201701, now seen corresponding path program 1 times [2024-11-03 05:42:42,629 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 05:42:42,629 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [299338811] [2024-11-03 05:42:42,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 05:42:42,629 INFO L173 SolverBuilder]: Constructing external solver with command: cvc5 --incremental --print-success --lang smt [2024-11-03 05:42:42,630 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 [2024-11-03 05:42:42,630 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 05:42:42,631 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 05:42:42,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 05:42:42,720 INFO L255 TraceCheckSpWp]: Trace formula consists of 236 conjuncts, 32 conjuncts are in the unsatisfiable core [2024-11-03 05:42:42,724 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 05:42:42,829 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 05:42:42,830 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 05:42:42,918 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 05:42:42,918 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 05:42:42,918 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [299338811] [2024-11-03 05:42:42,918 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [299338811] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-03 05:42:42,919 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-03 05:42:42,919 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 7 [2024-11-03 05:42:42,919 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1044951492] [2024-11-03 05:42:42,919 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-03 05:42:42,919 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-03 05:42:42,919 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 05:42:42,920 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-03 05:42:42,920 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2024-11-03 05:42:42,920 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 05:42:43,049 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 05:42:43,050 INFO L93 Difference]: Finished difference Result 1637 states and 2363 transitions. [2024-11-03 05:42:43,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-03 05:42:43,050 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 05:42:43,050 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 05:42:43,054 INFO L225 Difference]: With dead ends: 1637 [2024-11-03 05:42:43,054 INFO L226 Difference]: Without dead ends: 829 [2024-11-03 05:42:43,055 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 05:42:43,056 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 05:42:43,057 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 05:42:43,057 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 829 states. [2024-11-03 05:42:43,070 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 829 to 829. [2024-11-03 05:42:43,071 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 05:42:43,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 829 states to 829 states and 1188 transitions. [2024-11-03 05:42:43,073 INFO L78 Accepts]: Start accepts. Automaton has 829 states and 1188 transitions. Word has length 199 [2024-11-03 05:42:43,074 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 05:42:43,074 INFO L471 AbstractCegarLoop]: Abstraction has 829 states and 1188 transitions. [2024-11-03 05:42:43,074 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 05:42:43,074 INFO L276 IsEmpty]: Start isEmpty. Operand 829 states and 1188 transitions. [2024-11-03 05:42:43,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2024-11-03 05:42:43,076 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 05:42:43,076 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 05:42:43,079 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 05:42:43,278 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 05:42:43,278 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 05:42:43,279 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 05:42:43,279 INFO L85 PathProgramCache]: Analyzing trace with hash -546671195, now seen corresponding path program 1 times [2024-11-03 05:42:43,279 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 05:42:43,279 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1529080973] [2024-11-03 05:42:43,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 05:42:43,279 INFO L173 SolverBuilder]: Constructing external solver with command: cvc5 --incremental --print-success --lang smt [2024-11-03 05:42:43,280 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 [2024-11-03 05:42:43,282 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 05:42:43,283 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 05:42:43,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 05:42:43,377 INFO L255 TraceCheckSpWp]: Trace formula consists of 237 conjuncts, 32 conjuncts are in the unsatisfiable core [2024-11-03 05:42:43,381 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 05:42:43,472 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 05:42:43,472 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 05:42:43,559 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 05:42:43,559 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 05:42:43,559 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1529080973] [2024-11-03 05:42:43,560 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [1529080973] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-03 05:42:43,560 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-03 05:42:43,560 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2024-11-03 05:42:43,560 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1982083724] [2024-11-03 05:42:43,560 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-03 05:42:43,560 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-03 05:42:43,560 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 05:42:43,561 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-03 05:42:43,561 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2024-11-03 05:42:43,561 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 05:42:43,683 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 05:42:43,683 INFO L93 Difference]: Finished difference Result 1637 states and 2351 transitions. [2024-11-03 05:42:43,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-03 05:42:43,684 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 05:42:43,684 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 05:42:43,687 INFO L225 Difference]: With dead ends: 1637 [2024-11-03 05:42:43,687 INFO L226 Difference]: Without dead ends: 829 [2024-11-03 05:42:43,688 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 05:42:43,688 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 05:42:43,689 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 05:42:43,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 829 states. [2024-11-03 05:42:43,703 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 829 to 829. [2024-11-03 05:42:43,704 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 05:42:43,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 829 states to 829 states and 1179 transitions. [2024-11-03 05:42:43,706 INFO L78 Accepts]: Start accepts. Automaton has 829 states and 1179 transitions. Word has length 200 [2024-11-03 05:42:43,707 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 05:42:43,707 INFO L471 AbstractCegarLoop]: Abstraction has 829 states and 1179 transitions. [2024-11-03 05:42:43,707 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 05:42:43,707 INFO L276 IsEmpty]: Start isEmpty. Operand 829 states and 1179 transitions. [2024-11-03 05:42:43,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2024-11-03 05:42:43,709 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 05:42:43,709 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 05:42:43,712 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 05:42:43,910 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 05:42:43,911 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 05:42:43,911 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 05:42:43,911 INFO L85 PathProgramCache]: Analyzing trace with hash -512978570, now seen corresponding path program 1 times [2024-11-03 05:42:43,911 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 05:42:43,911 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [336509359] [2024-11-03 05:42:43,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 05:42:43,912 INFO L173 SolverBuilder]: Constructing external solver with command: cvc5 --incremental --print-success --lang smt [2024-11-03 05:42:43,912 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 [2024-11-03 05:42:43,915 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 05:42:43,915 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 05:42:44,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 05:42:44,034 INFO L255 TraceCheckSpWp]: Trace formula consists of 238 conjuncts, 32 conjuncts are in the unsatisfiable core [2024-11-03 05:42:44,039 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 05:42:44,183 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 05:42:44,183 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 05:42:44,231 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 05:42:44,231 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 05:42:44,231 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [336509359] [2024-11-03 05:42:44,232 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [336509359] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-03 05:42:44,232 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-03 05:42:44,232 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 7 [2024-11-03 05:42:44,232 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [748422831] [2024-11-03 05:42:44,232 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-03 05:42:44,233 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-03 05:42:44,233 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 05:42:44,233 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-03 05:42:44,233 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-03 05:42:44,234 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 05:42:44,369 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 05:42:44,369 INFO L93 Difference]: Finished difference Result 1697 states and 2420 transitions. [2024-11-03 05:42:44,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-03 05:42:44,370 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 05:42:44,370 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 05:42:44,373 INFO L225 Difference]: With dead ends: 1697 [2024-11-03 05:42:44,373 INFO L226 Difference]: Without dead ends: 889 [2024-11-03 05:42:44,374 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 400 GetRequests, 395 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 05:42:44,375 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 05:42:44,375 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 05:42:44,376 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 889 states. [2024-11-03 05:42:44,398 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 889 to 889. [2024-11-03 05:42:44,399 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 05:42:44,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 889 states to 889 states and 1260 transitions. [2024-11-03 05:42:44,402 INFO L78 Accepts]: Start accepts. Automaton has 889 states and 1260 transitions. Word has length 201 [2024-11-03 05:42:44,402 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 05:42:44,402 INFO L471 AbstractCegarLoop]: Abstraction has 889 states and 1260 transitions. [2024-11-03 05:42:44,403 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 05:42:44,403 INFO L276 IsEmpty]: Start isEmpty. Operand 889 states and 1260 transitions. [2024-11-03 05:42:44,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2024-11-03 05:42:44,405 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 05:42:44,406 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 05:42:44,409 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 05:42:44,607 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 05:42:44,608 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 05:42:44,609 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 05:42:44,609 INFO L85 PathProgramCache]: Analyzing trace with hash -1354548807, now seen corresponding path program 1 times [2024-11-03 05:42:44,609 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 05:42:44,609 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [32199268] [2024-11-03 05:42:44,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 05:42:44,609 INFO L173 SolverBuilder]: Constructing external solver with command: cvc5 --incremental --print-success --lang smt [2024-11-03 05:42:44,610 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 [2024-11-03 05:42:44,612 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 05:42:44,613 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 05:42:44,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 05:42:44,722 INFO L255 TraceCheckSpWp]: Trace formula consists of 245 conjuncts, 32 conjuncts are in the unsatisfiable core [2024-11-03 05:42:44,728 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 05:42:44,888 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 05:42:44,888 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 05:42:44,949 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 05:42:44,949 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 05:42:44,949 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [32199268] [2024-11-03 05:42:44,949 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [32199268] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-03 05:42:44,949 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-03 05:42:44,949 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 7 [2024-11-03 05:42:44,949 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2063359361] [2024-11-03 05:42:44,950 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-03 05:42:44,950 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-03 05:42:44,950 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 05:42:44,951 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-03 05:42:44,951 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-03 05:42:44,951 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 05:42:45,095 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 05:42:45,096 INFO L93 Difference]: Finished difference Result 1880 states and 2696 transitions. [2024-11-03 05:42:45,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-03 05:42:45,096 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 45.666666666666664) internal successors, (137), 3 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 211 [2024-11-03 05:42:45,097 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 05:42:45,100 INFO L225 Difference]: With dead ends: 1880 [2024-11-03 05:42:45,100 INFO L226 Difference]: Without dead ends: 1012 [2024-11-03 05:42:45,101 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 05:42:45,102 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 05:42:45,102 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 05:42:45,103 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1012 states. [2024-11-03 05:42:45,120 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1012 to 1012. [2024-11-03 05:42:45,123 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 05:42:45,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1012 states to 1012 states and 1455 transitions. [2024-11-03 05:42:45,125 INFO L78 Accepts]: Start accepts. Automaton has 1012 states and 1455 transitions. Word has length 211 [2024-11-03 05:42:45,125 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 05:42:45,125 INFO L471 AbstractCegarLoop]: Abstraction has 1012 states and 1455 transitions. [2024-11-03 05:42:45,125 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 05:42:45,126 INFO L276 IsEmpty]: Start isEmpty. Operand 1012 states and 1455 transitions. [2024-11-03 05:42:45,128 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2024-11-03 05:42:45,128 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 05:42:45,128 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 05:42:45,131 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 05:42:45,330 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 05:42:45,331 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 05:42:45,331 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 05:42:45,331 INFO L85 PathProgramCache]: Analyzing trace with hash -106757393, now seen corresponding path program 1 times [2024-11-03 05:42:45,331 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 05:42:45,331 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1351551090] [2024-11-03 05:42:45,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 05:42:45,331 INFO L173 SolverBuilder]: Constructing external solver with command: cvc5 --incremental --print-success --lang smt [2024-11-03 05:42:45,332 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 [2024-11-03 05:42:45,333 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 05:42:45,334 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 05:42:45,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 05:42:45,436 INFO L255 TraceCheckSpWp]: Trace formula consists of 260 conjuncts, 32 conjuncts are in the unsatisfiable core [2024-11-03 05:42:45,440 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 05:42:45,526 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 05:42:45,526 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 05:42:45,611 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 05:42:45,611 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 05:42:45,611 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1351551090] [2024-11-03 05:42:45,611 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [1351551090] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-03 05:42:45,611 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-03 05:42:45,611 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2024-11-03 05:42:45,612 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1919251974] [2024-11-03 05:42:45,612 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-03 05:42:45,612 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-03 05:42:45,612 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 05:42:45,613 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-03 05:42:45,613 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-03 05:42:45,613 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 05:42:45,732 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 05:42:45,732 INFO L93 Difference]: Finished difference Result 2003 states and 2885 transitions. [2024-11-03 05:42:45,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-03 05:42:45,733 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 05:42:45,733 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 05:42:45,736 INFO L225 Difference]: With dead ends: 2003 [2024-11-03 05:42:45,736 INFO L226 Difference]: Without dead ends: 1012 [2024-11-03 05:42:45,737 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 05:42:45,737 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 05:42:45,738 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 05:42:45,739 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1012 states. [2024-11-03 05:42:45,782 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1012 to 1012. [2024-11-03 05:42:45,784 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 05:42:45,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1012 states to 1012 states and 1443 transitions. [2024-11-03 05:42:45,785 INFO L78 Accepts]: Start accepts. Automaton has 1012 states and 1443 transitions. Word has length 223 [2024-11-03 05:42:45,786 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 05:42:45,786 INFO L471 AbstractCegarLoop]: Abstraction has 1012 states and 1443 transitions. [2024-11-03 05:42:45,786 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 05:42:45,786 INFO L276 IsEmpty]: Start isEmpty. Operand 1012 states and 1443 transitions. [2024-11-03 05:42:45,789 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 225 [2024-11-03 05:42:45,789 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 05:42:45,790 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 05:42:45,795 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 05:42:45,992 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 05:42:45,992 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 05:42:45,992 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 05:42:45,993 INFO L85 PathProgramCache]: Analyzing trace with hash -1953901890, now seen corresponding path program 1 times [2024-11-03 05:42:45,993 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 05:42:45,993 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1011362770] [2024-11-03 05:42:45,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 05:42:45,993 INFO L173 SolverBuilder]: Constructing external solver with command: cvc5 --incremental --print-success --lang smt [2024-11-03 05:42:45,993 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 [2024-11-03 05:42:45,995 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 05:42:45,995 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 05:42:46,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 05:42:46,093 INFO L255 TraceCheckSpWp]: Trace formula consists of 261 conjuncts, 32 conjuncts are in the unsatisfiable core [2024-11-03 05:42:46,097 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 05:42:46,214 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 05:42:46,214 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 05:42:46,255 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 05:42:46,256 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 05:42:46,256 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1011362770] [2024-11-03 05:42:46,256 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [1011362770] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-03 05:42:46,256 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-03 05:42:46,256 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 7 [2024-11-03 05:42:46,256 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [421690275] [2024-11-03 05:42:46,256 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-03 05:42:46,257 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-03 05:42:46,257 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 05:42:46,257 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-03 05:42:46,257 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2024-11-03 05:42:46,257 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 05:42:46,373 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 05:42:46,374 INFO L93 Difference]: Finished difference Result 2003 states and 2861 transitions. [2024-11-03 05:42:46,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-03 05:42:46,374 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 05:42:46,374 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 05:42:46,377 INFO L225 Difference]: With dead ends: 2003 [2024-11-03 05:42:46,378 INFO L226 Difference]: Without dead ends: 1012 [2024-11-03 05:42:46,380 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 05:42:46,380 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 05:42:46,381 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 05:42:46,382 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1012 states. [2024-11-03 05:42:46,400 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1012 to 1012. [2024-11-03 05:42:46,401 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 05:42:46,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1012 states to 1012 states and 1428 transitions. [2024-11-03 05:42:46,403 INFO L78 Accepts]: Start accepts. Automaton has 1012 states and 1428 transitions. Word has length 224 [2024-11-03 05:42:46,404 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 05:42:46,404 INFO L471 AbstractCegarLoop]: Abstraction has 1012 states and 1428 transitions. [2024-11-03 05:42:46,404 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 05:42:46,404 INFO L276 IsEmpty]: Start isEmpty. Operand 1012 states and 1428 transitions. [2024-11-03 05:42:46,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2024-11-03 05:42:46,407 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 05:42:46,407 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 05:42:46,410 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (16)] Forceful destruction successful, exit code 0 [2024-11-03 05:42:46,609 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 05:42:46,609 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 05:42:46,609 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 05:42:46,609 INFO L85 PathProgramCache]: Analyzing trace with hash 2069571760, now seen corresponding path program 1 times [2024-11-03 05:42:46,610 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 05:42:46,610 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1164546585] [2024-11-03 05:42:46,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 05:42:46,610 INFO L173 SolverBuilder]: Constructing external solver with command: cvc5 --incremental --print-success --lang smt [2024-11-03 05:42:46,610 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 [2024-11-03 05:42:46,613 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 05:42:46,614 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 05:42:46,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 05:42:46,726 INFO L255 TraceCheckSpWp]: Trace formula consists of 269 conjuncts, 32 conjuncts are in the unsatisfiable core [2024-11-03 05:42:46,730 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 05:42:46,851 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 05:42:46,852 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 05:42:46,960 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 05:42:46,961 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 05:42:46,961 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1164546585] [2024-11-03 05:42:46,961 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [1164546585] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-03 05:42:46,961 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-03 05:42:46,961 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 7 [2024-11-03 05:42:46,961 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [212851340] [2024-11-03 05:42:46,961 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-03 05:42:46,962 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-03 05:42:46,962 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 05:42:46,962 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-03 05:42:46,962 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-03 05:42:46,963 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 05:42:47,083 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 05:42:47,084 INFO L93 Difference]: Finished difference Result 2006 states and 2837 transitions. [2024-11-03 05:42:47,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-03 05:42:47,084 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 05:42:47,085 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 05:42:47,088 INFO L225 Difference]: With dead ends: 2006 [2024-11-03 05:42:47,088 INFO L226 Difference]: Without dead ends: 1015 [2024-11-03 05:42:47,089 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 460 GetRequests, 455 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 05:42:47,089 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 05:42:47,090 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 05:42:47,091 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1015 states. [2024-11-03 05:42:47,106 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1015 to 1015. [2024-11-03 05:42:47,107 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 05:42:47,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1015 states to 1015 states and 1428 transitions. [2024-11-03 05:42:47,109 INFO L78 Accepts]: Start accepts. Automaton has 1015 states and 1428 transitions. Word has length 231 [2024-11-03 05:42:47,109 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 05:42:47,110 INFO L471 AbstractCegarLoop]: Abstraction has 1015 states and 1428 transitions. [2024-11-03 05:42:47,110 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 05:42:47,110 INFO L276 IsEmpty]: Start isEmpty. Operand 1015 states and 1428 transitions. [2024-11-03 05:42:47,112 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 233 [2024-11-03 05:42:47,112 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 05:42:47,113 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 05:42:47,116 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (17)] Ended with exit code 0 [2024-11-03 05:42:47,314 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 05:42:47,315 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 05:42:47,315 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 05:42:47,315 INFO L85 PathProgramCache]: Analyzing trace with hash 1345552218, now seen corresponding path program 1 times [2024-11-03 05:42:47,315 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 05:42:47,315 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [434951643] [2024-11-03 05:42:47,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 05:42:47,315 INFO L173 SolverBuilder]: Constructing external solver with command: cvc5 --incremental --print-success --lang smt [2024-11-03 05:42:47,316 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 [2024-11-03 05:42:47,317 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 05:42:47,317 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 05:42:47,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 05:42:47,416 INFO L255 TraceCheckSpWp]: Trace formula consists of 270 conjuncts, 32 conjuncts are in the unsatisfiable core [2024-11-03 05:42:47,421 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 05:42:47,575 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 05:42:47,575 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 05:42:48,499 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 05:42:48,499 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 05:42:48,499 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [434951643] [2024-11-03 05:42:48,499 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [434951643] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-03 05:42:48,499 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-03 05:42:48,500 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 7 [2024-11-03 05:42:48,500 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1021797901] [2024-11-03 05:42:48,500 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-03 05:42:48,501 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-03 05:42:48,501 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 05:42:48,502 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-03 05:42:48,502 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2024-11-03 05:42:48,502 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 05:42:48,628 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 05:42:48,628 INFO L93 Difference]: Finished difference Result 2042 states and 2897 transitions. [2024-11-03 05:42:48,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-03 05:42:48,629 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 05:42:48,629 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 05:42:48,632 INFO L225 Difference]: With dead ends: 2042 [2024-11-03 05:42:48,632 INFO L226 Difference]: Without dead ends: 1048 [2024-11-03 05:42:48,634 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 462 GetRequests, 457 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2024-11-03 05:42:48,634 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 05:42:48,634 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 05:42:48,635 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1048 states. [2024-11-03 05:42:48,653 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1048 to 1048. [2024-11-03 05:42:48,655 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 05:42:48,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1048 states to 1048 states and 1488 transitions. [2024-11-03 05:42:48,656 INFO L78 Accepts]: Start accepts. Automaton has 1048 states and 1488 transitions. Word has length 232 [2024-11-03 05:42:48,657 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 05:42:48,657 INFO L471 AbstractCegarLoop]: Abstraction has 1048 states and 1488 transitions. [2024-11-03 05:42:48,657 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 05:42:48,657 INFO L276 IsEmpty]: Start isEmpty. Operand 1048 states and 1488 transitions. [2024-11-03 05:42:48,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 238 [2024-11-03 05:42:48,662 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 05:42:48,662 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 05:42:48,665 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (18)] Ended with exit code 0 [2024-11-03 05:42:48,864 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 05:42:48,864 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 05:42:48,865 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 05:42:48,865 INFO L85 PathProgramCache]: Analyzing trace with hash -1525121614, now seen corresponding path program 1 times [2024-11-03 05:42:48,865 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 05:42:48,865 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1009581009] [2024-11-03 05:42:48,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 05:42:48,865 INFO L173 SolverBuilder]: Constructing external solver with command: cvc5 --incremental --print-success --lang smt [2024-11-03 05:42:48,866 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 [2024-11-03 05:42:48,868 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 05:42:48,869 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 05:42:48,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 05:42:48,981 INFO L255 TraceCheckSpWp]: Trace formula consists of 274 conjuncts, 32 conjuncts are in the unsatisfiable core [2024-11-03 05:42:48,985 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 05:42:49,104 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 05:42:49,104 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 05:42:49,180 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 05:42:49,181 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 05:42:49,181 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1009581009] [2024-11-03 05:42:49,181 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [1009581009] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-03 05:42:49,181 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-03 05:42:49,181 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 7 [2024-11-03 05:42:49,181 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [797921092] [2024-11-03 05:42:49,181 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-03 05:42:49,181 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-03 05:42:49,182 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 05:42:49,182 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-03 05:42:49,182 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-03 05:42:49,182 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 05:42:49,300 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 05:42:49,300 INFO L93 Difference]: Finished difference Result 2162 states and 3077 transitions. [2024-11-03 05:42:49,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-03 05:42:49,300 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 05:42:49,301 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 05:42:49,303 INFO L225 Difference]: With dead ends: 2162 [2024-11-03 05:42:49,303 INFO L226 Difference]: Without dead ends: 1135 [2024-11-03 05:42:49,304 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 05:42:49,305 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 05:42:49,305 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 05:42:49,306 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1135 states. [2024-11-03 05:42:49,324 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1135 to 1135. [2024-11-03 05:42:49,325 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 05:42:49,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1135 states to 1135 states and 1605 transitions. [2024-11-03 05:42:49,327 INFO L78 Accepts]: Start accepts. Automaton has 1135 states and 1605 transitions. Word has length 237 [2024-11-03 05:42:49,327 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 05:42:49,327 INFO L471 AbstractCegarLoop]: Abstraction has 1135 states and 1605 transitions. [2024-11-03 05:42:49,328 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 05:42:49,328 INFO L276 IsEmpty]: Start isEmpty. Operand 1135 states and 1605 transitions. [2024-11-03 05:42:49,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 239 [2024-11-03 05:42:49,330 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 05:42:49,331 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 05:42:49,334 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (19)] Forceful destruction successful, exit code 0 [2024-11-03 05:42:49,532 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 05:42:49,533 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 05:42:49,533 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 05:42:49,533 INFO L85 PathProgramCache]: Analyzing trace with hash 251045858, now seen corresponding path program 1 times [2024-11-03 05:42:49,533 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 05:42:49,533 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [850214390] [2024-11-03 05:42:49,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 05:42:49,534 INFO L173 SolverBuilder]: Constructing external solver with command: cvc5 --incremental --print-success --lang smt [2024-11-03 05:42:49,534 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 [2024-11-03 05:42:49,535 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 05:42:49,536 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 05:42:49,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 05:42:49,631 INFO L255 TraceCheckSpWp]: Trace formula consists of 275 conjuncts, 32 conjuncts are in the unsatisfiable core [2024-11-03 05:42:49,635 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 05:42:49,781 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 05:42:49,781 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 05:42:49,834 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 05:42:49,834 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 05:42:49,834 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [850214390] [2024-11-03 05:42:49,834 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [850214390] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-03 05:42:49,834 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-03 05:42:49,835 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 7 [2024-11-03 05:42:49,835 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [497665280] [2024-11-03 05:42:49,835 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-03 05:42:49,835 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-03 05:42:49,835 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 05:42:49,836 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-03 05:42:49,836 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-03 05:42:49,836 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 05:42:49,972 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 05:42:49,973 INFO L93 Difference]: Finished difference Result 2330 states and 3299 transitions. [2024-11-03 05:42:49,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-03 05:42:49,973 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 05:42:49,974 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 05:42:49,977 INFO L225 Difference]: With dead ends: 2330 [2024-11-03 05:42:49,977 INFO L226 Difference]: Without dead ends: 1216 [2024-11-03 05:42:49,978 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 05:42:49,979 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 05:42:49,979 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 05:42:49,980 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1216 states. [2024-11-03 05:42:50,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1216 to 1216. [2024-11-03 05:42:50,015 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 05:42:50,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1216 states to 1216 states and 1707 transitions. [2024-11-03 05:42:50,017 INFO L78 Accepts]: Start accepts. Automaton has 1216 states and 1707 transitions. Word has length 238 [2024-11-03 05:42:50,018 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 05:42:50,018 INFO L471 AbstractCegarLoop]: Abstraction has 1216 states and 1707 transitions. [2024-11-03 05:42:50,018 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 05:42:50,018 INFO L276 IsEmpty]: Start isEmpty. Operand 1216 states and 1707 transitions. [2024-11-03 05:42:50,020 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 239 [2024-11-03 05:42:50,020 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 05:42:50,020 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 05:42:50,024 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 05:42:50,222 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 05:42:50,222 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 05:42:50,223 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 05:42:50,223 INFO L85 PathProgramCache]: Analyzing trace with hash 843580321, now seen corresponding path program 1 times [2024-11-03 05:42:50,223 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 05:42:50,223 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [697498548] [2024-11-03 05:42:50,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 05:42:50,223 INFO L173 SolverBuilder]: Constructing external solver with command: cvc5 --incremental --print-success --lang smt [2024-11-03 05:42:50,224 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 [2024-11-03 05:42:50,225 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 05:42:50,225 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 05:42:50,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 05:42:50,328 INFO L255 TraceCheckSpWp]: Trace formula consists of 275 conjuncts, 32 conjuncts are in the unsatisfiable core [2024-11-03 05:42:50,333 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 05:42:50,440 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 05:42:50,441 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 05:42:50,539 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 05:42:50,539 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 05:42:50,539 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [697498548] [2024-11-03 05:42:50,540 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [697498548] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-03 05:42:50,540 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-03 05:42:50,540 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 7 [2024-11-03 05:42:50,540 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [167983649] [2024-11-03 05:42:50,540 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-03 05:42:50,540 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-03 05:42:50,540 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 05:42:50,541 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-03 05:42:50,541 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2024-11-03 05:42:50,541 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 05:42:50,677 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 05:42:50,677 INFO L93 Difference]: Finished difference Result 2411 states and 3389 transitions. [2024-11-03 05:42:50,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-03 05:42:50,678 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 05:42:50,678 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 05:42:50,682 INFO L225 Difference]: With dead ends: 2411 [2024-11-03 05:42:50,682 INFO L226 Difference]: Without dead ends: 1216 [2024-11-03 05:42:50,683 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 05:42:50,684 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 05:42:50,685 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 05:42:50,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1216 states. [2024-11-03 05:42:50,710 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1216 to 1216. [2024-11-03 05:42:50,712 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 05:42:50,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1216 states to 1216 states and 1695 transitions. [2024-11-03 05:42:50,714 INFO L78 Accepts]: Start accepts. Automaton has 1216 states and 1695 transitions. Word has length 238 [2024-11-03 05:42:50,715 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 05:42:50,715 INFO L471 AbstractCegarLoop]: Abstraction has 1216 states and 1695 transitions. [2024-11-03 05:42:50,715 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 05:42:50,715 INFO L276 IsEmpty]: Start isEmpty. Operand 1216 states and 1695 transitions. [2024-11-03 05:42:50,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 240 [2024-11-03 05:42:50,717 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 05:42:50,717 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 05:42:50,720 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 05:42:50,919 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 05:42:50,919 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 05:42:50,920 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 05:42:50,920 INFO L85 PathProgramCache]: Analyzing trace with hash 1212578931, now seen corresponding path program 1 times [2024-11-03 05:42:50,920 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 05:42:50,920 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [263410668] [2024-11-03 05:42:50,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 05:42:50,920 INFO L173 SolverBuilder]: Constructing external solver with command: cvc5 --incremental --print-success --lang smt [2024-11-03 05:42:50,920 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 [2024-11-03 05:42:50,923 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 05:42:50,925 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 05:42:51,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 05:42:51,017 INFO L255 TraceCheckSpWp]: Trace formula consists of 276 conjuncts, 32 conjuncts are in the unsatisfiable core [2024-11-03 05:42:51,021 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 05:42:51,157 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 05:42:51,158 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 05:42:51,241 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 05:42:51,241 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 05:42:51,241 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [263410668] [2024-11-03 05:42:51,241 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [263410668] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-03 05:42:51,241 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-03 05:42:51,241 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 7 [2024-11-03 05:42:51,242 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2002768123] [2024-11-03 05:42:51,242 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-03 05:42:51,242 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-03 05:42:51,242 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 05:42:51,243 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-03 05:42:51,243 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2024-11-03 05:42:51,243 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 05:42:51,352 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 05:42:51,353 INFO L93 Difference]: Finished difference Result 2411 states and 3365 transitions. [2024-11-03 05:42:51,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-03 05:42:51,353 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 05:42:51,354 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 05:42:51,357 INFO L225 Difference]: With dead ends: 2411 [2024-11-03 05:42:51,357 INFO L226 Difference]: Without dead ends: 1216 [2024-11-03 05:42:51,358 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 05:42:51,359 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 05:42:51,359 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 05:42:51,360 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1216 states. [2024-11-03 05:42:51,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1216 to 1216. [2024-11-03 05:42:51,400 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 05:42:51,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1216 states to 1216 states and 1680 transitions. [2024-11-03 05:42:51,402 INFO L78 Accepts]: Start accepts. Automaton has 1216 states and 1680 transitions. Word has length 239 [2024-11-03 05:42:51,403 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 05:42:51,403 INFO L471 AbstractCegarLoop]: Abstraction has 1216 states and 1680 transitions. [2024-11-03 05:42:51,403 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 05:42:51,403 INFO L276 IsEmpty]: Start isEmpty. Operand 1216 states and 1680 transitions. [2024-11-03 05:42:51,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 245 [2024-11-03 05:42:51,405 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 05:42:51,406 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 05:42:51,408 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (22)] Forceful destruction successful, exit code 0 [2024-11-03 05:42:51,606 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 05:42:51,606 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 05:42:51,607 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 05:42:51,607 INFO L85 PathProgramCache]: Analyzing trace with hash 557282683, now seen corresponding path program 1 times [2024-11-03 05:42:51,607 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 05:42:51,607 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [852926885] [2024-11-03 05:42:51,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 05:42:51,607 INFO L173 SolverBuilder]: Constructing external solver with command: cvc5 --incremental --print-success --lang smt [2024-11-03 05:42:51,607 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 [2024-11-03 05:42:51,608 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 05:42:51,609 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 05:42:51,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 05:42:51,705 INFO L255 TraceCheckSpWp]: Trace formula consists of 282 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-03 05:42:51,708 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 05:42:51,854 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 05:42:51,854 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 05:42:51,993 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 05:42:51,993 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 05:42:51,993 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [852926885] [2024-11-03 05:42:51,993 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [852926885] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-03 05:42:51,993 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-03 05:42:51,994 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2024-11-03 05:42:51,994 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1789700828] [2024-11-03 05:42:51,994 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-03 05:42:51,994 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-03 05:42:51,994 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 05:42:51,995 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-03 05:42:51,995 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-03 05:42:51,995 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 05:42:52,031 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 05:42:52,031 INFO L93 Difference]: Finished difference Result 3510 states and 4879 transitions. [2024-11-03 05:42:52,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-03 05:42:52,032 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 05:42:52,032 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 05:42:52,038 INFO L225 Difference]: With dead ends: 3510 [2024-11-03 05:42:52,038 INFO L226 Difference]: Without dead ends: 2315 [2024-11-03 05:42:52,040 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 05:42:52,041 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 05:42:52,041 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 05:42:52,043 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2315 states. [2024-11-03 05:42:52,085 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2315 to 2313. [2024-11-03 05:42:52,088 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 05:42:52,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2313 states to 2313 states and 3216 transitions. [2024-11-03 05:42:52,092 INFO L78 Accepts]: Start accepts. Automaton has 2313 states and 3216 transitions. Word has length 244 [2024-11-03 05:42:52,093 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 05:42:52,093 INFO L471 AbstractCegarLoop]: Abstraction has 2313 states and 3216 transitions. [2024-11-03 05:42:52,093 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 05:42:52,093 INFO L276 IsEmpty]: Start isEmpty. Operand 2313 states and 3216 transitions. [2024-11-03 05:42:52,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 252 [2024-11-03 05:42:52,097 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 05:42:52,097 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 05:42:52,099 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 05:42:52,297 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 05:42:52,298 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 05:42:52,298 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 05:42:52,298 INFO L85 PathProgramCache]: Analyzing trace with hash -148177426, now seen corresponding path program 1 times [2024-11-03 05:42:52,298 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 05:42:52,298 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1437011389] [2024-11-03 05:42:52,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 05:42:52,298 INFO L173 SolverBuilder]: Constructing external solver with command: cvc5 --incremental --print-success --lang smt [2024-11-03 05:42:52,299 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 [2024-11-03 05:42:52,300 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 05:42:52,300 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 05:42:52,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 05:42:52,400 INFO L255 TraceCheckSpWp]: Trace formula consists of 291 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-03 05:42:52,402 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 05:42:52,464 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 05:42:52,464 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 05:42:52,546 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 05:42:52,546 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 05:42:52,547 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1437011389] [2024-11-03 05:42:52,547 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [1437011389] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-03 05:42:52,547 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-03 05:42:52,547 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2024-11-03 05:42:52,547 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [302994581] [2024-11-03 05:42:52,547 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-03 05:42:52,547 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-03 05:42:52,547 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 05:42:52,548 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-03 05:42:52,548 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-03 05:42:52,548 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 05:42:52,621 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 05:42:52,622 INFO L93 Difference]: Finished difference Result 6885 states and 9580 transitions. [2024-11-03 05:42:52,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-03 05:42:52,622 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 05:42:52,623 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 05:42:52,635 INFO L225 Difference]: With dead ends: 6885 [2024-11-03 05:42:52,635 INFO L226 Difference]: Without dead ends: 4593 [2024-11-03 05:42:52,638 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 05:42:52,639 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 05:42:52,639 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 05:42:52,642 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4593 states. [2024-11-03 05:42:52,726 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4593 to 4591. [2024-11-03 05:42:52,732 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 05:42:52,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4591 states to 4591 states and 6376 transitions. [2024-11-03 05:42:52,738 INFO L78 Accepts]: Start accepts. Automaton has 4591 states and 6376 transitions. Word has length 251 [2024-11-03 05:42:52,739 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 05:42:52,739 INFO L471 AbstractCegarLoop]: Abstraction has 4591 states and 6376 transitions. [2024-11-03 05:42:52,739 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 05:42:52,739 INFO L276 IsEmpty]: Start isEmpty. Operand 4591 states and 6376 transitions. [2024-11-03 05:42:52,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 253 [2024-11-03 05:42:52,746 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 05:42:52,746 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 05:42:52,748 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 05:42:52,947 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 05:42:52,947 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 05:42:52,948 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 05:42:52,948 INFO L85 PathProgramCache]: Analyzing trace with hash 183836775, now seen corresponding path program 1 times [2024-11-03 05:42:52,948 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 05:42:52,948 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1777959349] [2024-11-03 05:42:52,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 05:42:52,948 INFO L173 SolverBuilder]: Constructing external solver with command: cvc5 --incremental --print-success --lang smt [2024-11-03 05:42:52,948 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 [2024-11-03 05:42:52,951 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 05:42:52,952 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 05:42:53,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 05:42:53,048 INFO L255 TraceCheckSpWp]: Trace formula consists of 292 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-03 05:42:53,050 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 05:42:53,085 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 05:42:53,085 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 05:42:53,151 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 05:42:53,151 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 05:42:53,151 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1777959349] [2024-11-03 05:42:53,151 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [1777959349] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-03 05:42:53,151 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-03 05:42:53,151 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2024-11-03 05:42:53,152 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1912619683] [2024-11-03 05:42:53,152 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-03 05:42:53,153 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-03 05:42:53,153 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 05:42:53,153 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-03 05:42:53,154 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-03 05:42:53,154 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 05:42:53,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 05:42:53,296 INFO L93 Difference]: Finished difference Result 9161 states and 12727 transitions. [2024-11-03 05:42:53,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-03 05:42:53,297 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 05:42:53,297 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 05:42:53,311 INFO L225 Difference]: With dead ends: 9161 [2024-11-03 05:42:53,311 INFO L226 Difference]: Without dead ends: 4591 [2024-11-03 05:42:53,316 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 05:42:53,316 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 05:42:53,316 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 05:42:53,319 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4591 states. [2024-11-03 05:42:53,403 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4591 to 4591. [2024-11-03 05:42:53,408 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 05:42:53,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4591 states to 4591 states and 6304 transitions. [2024-11-03 05:42:53,415 INFO L78 Accepts]: Start accepts. Automaton has 4591 states and 6304 transitions. Word has length 252 [2024-11-03 05:42:53,416 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 05:42:53,416 INFO L471 AbstractCegarLoop]: Abstraction has 4591 states and 6304 transitions. [2024-11-03 05:42:53,416 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 05:42:53,416 INFO L276 IsEmpty]: Start isEmpty. Operand 4591 states and 6304 transitions. [2024-11-03 05:42:53,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 254 [2024-11-03 05:42:53,422 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 05:42:53,422 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 05:42:53,425 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (25)] Forceful destruction successful, exit code 0 [2024-11-03 05:42:53,623 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 05:42:53,623 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 05:42:53,623 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 05:42:53,623 INFO L85 PathProgramCache]: Analyzing trace with hash -482554043, now seen corresponding path program 1 times [2024-11-03 05:42:53,624 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 05:42:53,624 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1698798129] [2024-11-03 05:42:53,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 05:42:53,624 INFO L173 SolverBuilder]: Constructing external solver with command: cvc5 --incremental --print-success --lang smt [2024-11-03 05:42:53,624 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 [2024-11-03 05:42:53,625 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 05:42:53,626 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 05:42:53,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 05:42:53,723 INFO L255 TraceCheckSpWp]: Trace formula consists of 289 conjuncts, 41 conjuncts are in the unsatisfiable core [2024-11-03 05:42:53,727 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 05:42:54,016 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 05:42:54,016 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 05:42:54,131 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 05:42:54,131 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 05:42:54,131 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1698798129] [2024-11-03 05:42:54,131 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [1698798129] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-03 05:42:54,131 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-03 05:42:54,131 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 4] total 12 [2024-11-03 05:42:54,131 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [214765729] [2024-11-03 05:42:54,131 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-03 05:42:54,132 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-03 05:42:54,132 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 05:42:54,132 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-03 05:42:54,132 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2024-11-03 05:42:54,132 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 05:42:57,246 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.78s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-03 05:43:00,094 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.84s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-03 05:43:03,026 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.74s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-03 05:43:07,054 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.94s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-03 05:43:10,554 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.95s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-03 05:43:12,688 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.99s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-03 05:43:16,302 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.21s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-03 05:43:19,275 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.97s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-03 05:43:23,162 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.83s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-03 05:43:26,875 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.32s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-03 05:43:28,945 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.93s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-03 05:43:30,964 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-03 05:43:33,602 WARN L539 Checker$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 05:43:36,399 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.63s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-03 05:43:38,441 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.39s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-03 05:43:40,898 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.45s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-03 05:43:44,256 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.93s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-03 05:43:47,216 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.96s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-03 05:43:51,023 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.58s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-03 05:43:54,466 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.36s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-03 05:43:58,119 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.27s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-03 05:44:00,459 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.20s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-03 05:44:02,921 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.42s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-03 05:44:05,964 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-03 05:44:11,014 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.65s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0]