/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-regression/recHanoi03-1.c -------------------------------------------------------------------------------- This is Ultimate 0.2.5-dev-b75d321-m [2024-11-03 05:43:40,107 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-03 05:43:40,178 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 05:43:40,185 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-03 05:43:40,186 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-03 05:43:40,203 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-03 05:43:40,205 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-03 05:43:40,205 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-03 05:43:40,206 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-03 05:43:40,206 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-03 05:43:40,206 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-03 05:43:40,207 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-03 05:43:40,207 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-03 05:43:40,208 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-03 05:43:40,208 INFO L153 SettingsManager]: * Use SBE=true [2024-11-03 05:43:40,209 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-03 05:43:40,211 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-03 05:43:40,212 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-03 05:43:40,213 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-03 05:43:40,213 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-03 05:43:40,213 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-03 05:43:40,214 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-03 05:43:40,214 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-03 05:43:40,215 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-03 05:43:40,215 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-03 05:43:40,215 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-03 05:43:40,215 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-03 05:43:40,216 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-03 05:43:40,216 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-03 05:43:40,216 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-03 05:43:40,216 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-03 05:43:40,217 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-03 05:43:40,217 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-03 05:43:40,217 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-03 05:43:40,217 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-03 05:43:40,218 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-03 05:43:40,218 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-03 05:43:40,218 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-03 05:43:40,218 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-11-03 05:43:40,218 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-03 05:43:40,218 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-03 05:43:40,219 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-03 05:43:40,219 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-03 05:43:40,219 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-03 05:43:40,219 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Allow undefined functions -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Command for external solver -> cvc5 --incremental --print-success --lang smt [2024-11-03 05:43:40,426 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-03 05:43:40,448 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-03 05:43:40,453 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-03 05:43:40,454 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-03 05:43:40,454 INFO L274 PluginConnector]: CDTParser initialized [2024-11-03 05:43:40,455 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/bitvector-regression/recHanoi03-1.c [2024-11-03 05:43:41,819 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-03 05:43:41,994 INFO L384 CDTParser]: Found 1 translation units. [2024-11-03 05:43:41,995 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/bitvector-regression/recHanoi03-1.c [2024-11-03 05:43:42,000 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f85b96908/8ce4d3114a294b2987c2fc43fda88e8a/FLAG51707cd1e [2024-11-03 05:43:42,399 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f85b96908/8ce4d3114a294b2987c2fc43fda88e8a [2024-11-03 05:43:42,401 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-03 05:43:42,402 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-11-03 05:43:42,403 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-03 05:43:42,404 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-03 05:43:42,409 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-03 05:43:42,409 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 05:43:42" (1/1) ... [2024-11-03 05:43:42,410 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@e4a8f13 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:43:42, skipping insertion in model container [2024-11-03 05:43:42,410 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 05:43:42" (1/1) ... [2024-11-03 05:43:42,427 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-03 05:43:42,599 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-regression/recHanoi03-1.c[838,851] [2024-11-03 05:43:42,604 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-03 05:43:42,619 INFO L200 MainTranslator]: Completed pre-run [2024-11-03 05:43:42,633 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/bitvector-regression/recHanoi03-1.c[838,851] [2024-11-03 05:43:42,634 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-03 05:43:42,649 INFO L204 MainTranslator]: Completed translation [2024-11-03 05:43:42,651 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:43:42 WrapperNode [2024-11-03 05:43:42,652 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-03 05:43:42,653 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-03 05:43:42,653 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-03 05:43:42,654 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-03 05:43:42,660 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:43:42" (1/1) ... [2024-11-03 05:43:42,670 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:43:42" (1/1) ... [2024-11-03 05:43:42,684 INFO L138 Inliner]: procedures = 13, calls = 9, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 24 [2024-11-03 05:43:42,684 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-03 05:43:42,685 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-03 05:43:42,685 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-03 05:43:42,685 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-03 05:43:42,693 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:43:42" (1/1) ... [2024-11-03 05:43:42,693 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:43:42" (1/1) ... [2024-11-03 05:43:42,695 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:43:42" (1/1) ... [2024-11-03 05:43:42,703 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 05:43:42,704 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:43:42" (1/1) ... [2024-11-03 05:43:42,704 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:43:42" (1/1) ... [2024-11-03 05:43:42,707 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:43:42" (1/1) ... [2024-11-03 05:43:42,709 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:43:42" (1/1) ... [2024-11-03 05:43:42,710 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:43:42" (1/1) ... [2024-11-03 05:43:42,710 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:43:42" (1/1) ... [2024-11-03 05:43:42,712 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-03 05:43:42,713 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-03 05:43:42,713 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-03 05:43:42,713 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-03 05:43:42,714 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:43:42" (1/1) ... [2024-11-03 05:43:42,720 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-03 05:43:42,732 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-03 05:43:42,745 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 05:43:42,750 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 05:43:42,775 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-03 05:43:42,776 INFO L130 BoogieDeclarations]: Found specification of procedure hanoi [2024-11-03 05:43:42,776 INFO L138 BoogieDeclarations]: Found implementation of procedure hanoi [2024-11-03 05:43:42,776 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-03 05:43:42,776 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-03 05:43:42,777 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-03 05:43:42,845 INFO L238 CfgBuilder]: Building ICFG [2024-11-03 05:43:42,847 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-03 05:43:42,983 INFO L? ?]: Removed 8 outVars from TransFormulas that were not future-live. [2024-11-03 05:43:42,983 INFO L287 CfgBuilder]: Performing block encoding [2024-11-03 05:43:42,995 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-03 05:43:42,996 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-03 05:43:42,998 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 05:43:42 BoogieIcfgContainer [2024-11-03 05:43:42,999 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-03 05:43:43,002 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-03 05:43:43,002 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-03 05:43:43,005 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-03 05:43:43,006 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 05:43:42" (1/3) ... [2024-11-03 05:43:43,007 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@32778f99 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 05:43:43, skipping insertion in model container [2024-11-03 05:43:43,007 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:43:42" (2/3) ... [2024-11-03 05:43:43,007 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@32778f99 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 05:43:43, skipping insertion in model container [2024-11-03 05:43:43,008 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 05:43:42" (3/3) ... [2024-11-03 05:43:43,009 INFO L112 eAbstractionObserver]: Analyzing ICFG recHanoi03-1.c [2024-11-03 05:43:43,024 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-03 05:43:43,025 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-03 05:43:43,075 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-03 05:43:43,081 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;@70b0e1cf, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-03 05:43:43,081 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-03 05:43:43,084 INFO L276 IsEmpty]: Start isEmpty. Operand has 17 states, 12 states have (on average 1.3333333333333333) internal successors, (16), 13 states have internal predecessors, (16), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-03 05:43:43,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-11-03 05:43:43,091 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 05:43:43,091 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-03 05:43:43,092 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 05:43:43,096 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 05:43:43,096 INFO L85 PathProgramCache]: Analyzing trace with hash -2087939196, now seen corresponding path program 1 times [2024-11-03 05:43:43,104 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 05:43:43,105 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1034083806] [2024-11-03 05:43:43,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 05:43:43,107 INFO L173 SolverBuilder]: Constructing external solver with command: cvc5 --incremental --print-success --lang smt [2024-11-03 05:43:43,107 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 [2024-11-03 05:43:43,110 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 05:43:43,112 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 05:43:43,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 05:43:43,181 INFO L255 TraceCheckSpWp]: Trace formula consists of 25 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-03 05:43:43,186 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 05:43:43,382 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 05:43:43,383 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 05:43:43,603 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 05:43:43,604 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 05:43:43,604 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1034083806] [2024-11-03 05:43:43,605 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [1034083806] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-03 05:43:43,606 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-03 05:43:43,606 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 10 [2024-11-03 05:43:43,608 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1904467367] [2024-11-03 05:43:43,608 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-03 05:43:43,612 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-03 05:43:43,613 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 05:43:43,632 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-03 05:43:43,633 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2024-11-03 05:43:43,634 INFO L87 Difference]: Start difference. First operand has 17 states, 12 states have (on average 1.3333333333333333) internal successors, (16), 13 states have internal predecessors, (16), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 10 states, 10 states have (on average 1.4) internal successors, (14), 8 states have internal predecessors, (14), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-03 05:43:43,780 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 05:43:43,781 INFO L93 Difference]: Finished difference Result 26 states and 30 transitions. [2024-11-03 05:43:43,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-03 05:43:43,784 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 1.4) internal successors, (14), 8 states have internal predecessors, (14), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 11 [2024-11-03 05:43:43,784 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 05:43:43,789 INFO L225 Difference]: With dead ends: 26 [2024-11-03 05:43:43,789 INFO L226 Difference]: Without dead ends: 16 [2024-11-03 05:43:43,791 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2024-11-03 05:43:43,794 INFO L432 NwaCegarLoop]: 14 mSDtfsCounter, 3 mSDsluCounter, 50 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 64 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-03 05:43:43,795 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 64 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-03 05:43:43,807 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2024-11-03 05:43:43,817 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2024-11-03 05:43:43,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 11 states have (on average 1.0909090909090908) internal successors, (12), 12 states have internal predecessors, (12), 2 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-03 05:43:43,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 17 transitions. [2024-11-03 05:43:43,822 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 17 transitions. Word has length 11 [2024-11-03 05:43:43,822 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 05:43:43,822 INFO L471 AbstractCegarLoop]: Abstraction has 16 states and 17 transitions. [2024-11-03 05:43:43,822 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 1.4) internal successors, (14), 8 states have internal predecessors, (14), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-03 05:43:43,823 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 17 transitions. [2024-11-03 05:43:43,823 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2024-11-03 05:43:43,824 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 05:43:43,824 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-03 05:43:43,831 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (2)] Forceful destruction successful, exit code 0 [2024-11-03 05:43:44,028 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 05:43:44,028 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 05:43:44,029 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 05:43:44,029 INFO L85 PathProgramCache]: Analyzing trace with hash -2053638732, now seen corresponding path program 1 times [2024-11-03 05:43:44,029 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 05:43:44,029 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1194384382] [2024-11-03 05:43:44,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 05:43:44,030 INFO L173 SolverBuilder]: Constructing external solver with command: cvc5 --incremental --print-success --lang smt [2024-11-03 05:43:44,030 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 [2024-11-03 05:43:44,033 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 05:43:44,034 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 05:43:44,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 05:43:44,072 INFO L255 TraceCheckSpWp]: Trace formula consists of 33 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-03 05:43:44,074 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 05:43:44,212 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-03 05:43:44,212 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 05:43:44,670 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-03 05:43:44,671 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 05:43:44,672 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1194384382] [2024-11-03 05:43:44,672 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [1194384382] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-03 05:43:44,672 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-03 05:43:44,673 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 9] total 15 [2024-11-03 05:43:44,673 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [318536691] [2024-11-03 05:43:44,673 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-03 05:43:44,676 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-03 05:43:44,676 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 05:43:44,677 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-03 05:43:44,677 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=171, Unknown=0, NotChecked=0, Total=210 [2024-11-03 05:43:44,677 INFO L87 Difference]: Start difference. First operand 16 states and 17 transitions. Second operand has 15 states, 15 states have (on average 1.4) internal successors, (21), 11 states have internal predecessors, (21), 3 states have call successors, (3), 1 states have call predecessors, (3), 4 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-03 05:43:44,911 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 05:43:44,912 INFO L93 Difference]: Finished difference Result 28 states and 30 transitions. [2024-11-03 05:43:44,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-03 05:43:44,914 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 1.4) internal successors, (21), 11 states have internal predecessors, (21), 3 states have call successors, (3), 1 states have call predecessors, (3), 4 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4) Word has length 17 [2024-11-03 05:43:44,914 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 05:43:44,915 INFO L225 Difference]: With dead ends: 28 [2024-11-03 05:43:44,915 INFO L226 Difference]: Without dead ends: 22 [2024-11-03 05:43:44,915 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=67, Invalid=275, Unknown=0, NotChecked=0, Total=342 [2024-11-03 05:43:44,916 INFO L432 NwaCegarLoop]: 10 mSDtfsCounter, 6 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 86 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 62 SdHoareTripleChecker+Invalid, 87 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 86 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-03 05:43:44,917 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 62 Invalid, 87 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 86 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-03 05:43:44,921 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2024-11-03 05:43:44,928 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2024-11-03 05:43:44,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 15 states have (on average 1.0666666666666667) internal successors, (16), 16 states have internal predecessors, (16), 2 states have call successors, (2), 1 states have call predecessors, (2), 4 states have return successors, (5), 4 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-03 05:43:44,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 23 transitions. [2024-11-03 05:43:44,931 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 23 transitions. Word has length 17 [2024-11-03 05:43:44,931 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 05:43:44,931 INFO L471 AbstractCegarLoop]: Abstraction has 22 states and 23 transitions. [2024-11-03 05:43:44,931 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 1.4) internal successors, (21), 11 states have internal predecessors, (21), 3 states have call successors, (3), 1 states have call predecessors, (3), 4 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-03 05:43:44,931 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 23 transitions. [2024-11-03 05:43:44,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2024-11-03 05:43:44,932 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 05:43:44,932 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-03 05:43:44,936 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (3)] Forceful destruction successful, exit code 0 [2024-11-03 05:43:45,133 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 05:43:45,134 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 05:43:45,134 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 05:43:45,134 INFO L85 PathProgramCache]: Analyzing trace with hash -491101836, now seen corresponding path program 2 times [2024-11-03 05:43:45,134 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 05:43:45,135 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [572211637] [2024-11-03 05:43:45,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 05:43:45,135 INFO L173 SolverBuilder]: Constructing external solver with command: cvc5 --incremental --print-success --lang smt [2024-11-03 05:43:45,135 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 [2024-11-03 05:43:45,136 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 05:43:45,137 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 05:43:45,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 05:43:45,179 INFO L255 TraceCheckSpWp]: Trace formula consists of 49 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-11-03 05:43:45,182 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 05:43:45,408 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-11-03 05:43:45,409 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 05:43:46,443 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-03 05:43:46,444 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 05:43:46,444 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [572211637] [2024-11-03 05:43:46,444 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [572211637] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-03 05:43:46,444 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-03 05:43:46,444 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 15] total 25 [2024-11-03 05:43:46,444 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [508802787] [2024-11-03 05:43:46,444 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-03 05:43:46,445 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2024-11-03 05:43:46,445 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 05:43:46,446 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2024-11-03 05:43:46,446 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=523, Unknown=0, NotChecked=0, Total=600 [2024-11-03 05:43:46,447 INFO L87 Difference]: Start difference. First operand 22 states and 23 transitions. Second operand has 25 states, 25 states have (on average 1.32) internal successors, (33), 17 states have internal predecessors, (33), 5 states have call successors, (5), 1 states have call predecessors, (5), 8 states have return successors, (8), 8 states have call predecessors, (8), 5 states have call successors, (8) [2024-11-03 05:43:46,866 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 05:43:46,866 INFO L93 Difference]: Finished difference Result 34 states and 36 transitions. [2024-11-03 05:43:46,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-03 05:43:46,867 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 1.32) internal successors, (33), 17 states have internal predecessors, (33), 5 states have call successors, (5), 1 states have call predecessors, (5), 8 states have return successors, (8), 8 states have call predecessors, (8), 5 states have call successors, (8) Word has length 29 [2024-11-03 05:43:46,868 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 05:43:46,868 INFO L225 Difference]: With dead ends: 34 [2024-11-03 05:43:46,868 INFO L226 Difference]: Without dead ends: 28 [2024-11-03 05:43:46,869 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 101 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=157, Invalid=899, Unknown=0, NotChecked=0, Total=1056 [2024-11-03 05:43:46,870 INFO L432 NwaCegarLoop]: 12 mSDtfsCounter, 28 mSDsluCounter, 120 mSDsCounter, 0 mSdLazyCounter, 192 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 132 SdHoareTripleChecker+Invalid, 204 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 192 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-03 05:43:46,870 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 132 Invalid, 204 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 192 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-03 05:43:46,871 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2024-11-03 05:43:46,876 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2024-11-03 05:43:46,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 19 states have (on average 1.0526315789473684) internal successors, (20), 20 states have internal predecessors, (20), 2 states have call successors, (2), 1 states have call predecessors, (2), 6 states have return successors, (7), 6 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-03 05:43:46,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 29 transitions. [2024-11-03 05:43:46,877 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 29 transitions. Word has length 29 [2024-11-03 05:43:46,877 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 05:43:46,877 INFO L471 AbstractCegarLoop]: Abstraction has 28 states and 29 transitions. [2024-11-03 05:43:46,877 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 1.32) internal successors, (33), 17 states have internal predecessors, (33), 5 states have call successors, (5), 1 states have call predecessors, (5), 8 states have return successors, (8), 8 states have call predecessors, (8), 5 states have call successors, (8) [2024-11-03 05:43:46,878 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 29 transitions. [2024-11-03 05:43:46,878 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2024-11-03 05:43:46,879 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 05:43:46,879 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-03 05:43:46,882 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (4)] Ended with exit code 0 [2024-11-03 05:43:47,080 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 05:43:47,081 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 05:43:47,081 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 05:43:47,082 INFO L85 PathProgramCache]: Analyzing trace with hash -492655308, now seen corresponding path program 3 times [2024-11-03 05:43:47,082 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 05:43:47,083 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1445949053] [2024-11-03 05:43:47,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 05:43:47,083 INFO L173 SolverBuilder]: Constructing external solver with command: cvc5 --incremental --print-success --lang smt [2024-11-03 05:43:47,083 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 [2024-11-03 05:43:47,088 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 05:43:47,088 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 05:43:47,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 05:43:47,129 INFO L255 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 27 conjuncts are in the unsatisfiable core [2024-11-03 05:43:47,132 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 05:43:47,422 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-11-03 05:43:47,423 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 05:43:49,172 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 0 proven. 65 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-11-03 05:43:49,172 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 05:43:49,172 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1445949053] [2024-11-03 05:43:49,172 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [1445949053] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-03 05:43:49,173 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-03 05:43:49,173 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 21] total 35 [2024-11-03 05:43:49,173 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1940944832] [2024-11-03 05:43:49,173 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-03 05:43:49,173 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 35 states [2024-11-03 05:43:49,174 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 05:43:49,174 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2024-11-03 05:43:49,175 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=115, Invalid=1075, Unknown=0, NotChecked=0, Total=1190 [2024-11-03 05:43:49,175 INFO L87 Difference]: Start difference. First operand 28 states and 29 transitions. Second operand has 35 states, 35 states have (on average 1.2857142857142858) internal successors, (45), 23 states have internal predecessors, (45), 7 states have call successors, (7), 1 states have call predecessors, (7), 12 states have return successors, (12), 12 states have call predecessors, (12), 7 states have call successors, (12) [2024-11-03 05:43:49,795 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 05:43:49,795 INFO L93 Difference]: Finished difference Result 40 states and 42 transitions. [2024-11-03 05:43:49,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-11-03 05:43:49,796 INFO L78 Accepts]: Start accepts. Automaton has has 35 states, 35 states have (on average 1.2857142857142858) internal successors, (45), 23 states have internal predecessors, (45), 7 states have call successors, (7), 1 states have call predecessors, (7), 12 states have return successors, (12), 12 states have call predecessors, (12), 7 states have call successors, (12) Word has length 41 [2024-11-03 05:43:49,796 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 05:43:49,797 INFO L225 Difference]: With dead ends: 40 [2024-11-03 05:43:49,797 INFO L226 Difference]: Without dead ends: 34 [2024-11-03 05:43:49,798 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 228 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=263, Invalid=1899, Unknown=0, NotChecked=0, Total=2162 [2024-11-03 05:43:49,799 INFO L432 NwaCegarLoop]: 14 mSDtfsCounter, 52 mSDsluCounter, 218 mSDsCounter, 0 mSdLazyCounter, 366 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 232 SdHoareTripleChecker+Invalid, 389 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 366 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-03 05:43:49,799 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [60 Valid, 232 Invalid, 389 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 366 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-03 05:43:49,800 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2024-11-03 05:43:49,804 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2024-11-03 05:43:49,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34 states, 23 states have (on average 1.0434782608695652) internal successors, (24), 24 states have internal predecessors, (24), 2 states have call successors, (2), 1 states have call predecessors, (2), 8 states have return successors, (9), 8 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-03 05:43:49,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 35 transitions. [2024-11-03 05:43:49,806 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 35 transitions. Word has length 41 [2024-11-03 05:43:49,806 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 05:43:49,806 INFO L471 AbstractCegarLoop]: Abstraction has 34 states and 35 transitions. [2024-11-03 05:43:49,806 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 35 states, 35 states have (on average 1.2857142857142858) internal successors, (45), 23 states have internal predecessors, (45), 7 states have call successors, (7), 1 states have call predecessors, (7), 12 states have return successors, (12), 12 states have call predecessors, (12), 7 states have call successors, (12) [2024-11-03 05:43:49,806 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 35 transitions. [2024-11-03 05:43:49,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2024-11-03 05:43:49,808 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 05:43:49,808 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-03 05:43:49,813 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (5)] Ended with exit code 0 [2024-11-03 05:43:50,009 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 05:43:50,010 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 05:43:50,010 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 05:43:50,010 INFO L85 PathProgramCache]: Analyzing trace with hash -1906255628, now seen corresponding path program 4 times [2024-11-03 05:43:50,011 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 05:43:50,011 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1692870450] [2024-11-03 05:43:50,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 05:43:50,011 INFO L173 SolverBuilder]: Constructing external solver with command: cvc5 --incremental --print-success --lang smt [2024-11-03 05:43:50,011 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 [2024-11-03 05:43:50,012 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 05:43:50,013 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 05:43:50,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 05:43:50,052 INFO L255 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 35 conjuncts are in the unsatisfiable core [2024-11-03 05:43:50,055 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 05:43:50,372 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 0 proven. 77 refuted. 0 times theorem prover too weak. 77 trivial. 0 not checked. [2024-11-03 05:43:50,372 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 05:43:52,568 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 0 proven. 126 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-03 05:43:52,568 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 05:43:52,568 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1692870450] [2024-11-03 05:43:52,568 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [1692870450] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-03 05:43:52,568 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-03 05:43:52,569 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 27] total 45 [2024-11-03 05:43:52,569 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1005531328] [2024-11-03 05:43:52,569 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-03 05:43:52,569 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 45 states [2024-11-03 05:43:52,569 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 05:43:52,571 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 45 interpolants. [2024-11-03 05:43:52,572 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=153, Invalid=1827, Unknown=0, NotChecked=0, Total=1980 [2024-11-03 05:43:52,572 INFO L87 Difference]: Start difference. First operand 34 states and 35 transitions. Second operand has 45 states, 45 states have (on average 1.2666666666666666) internal successors, (57), 29 states have internal predecessors, (57), 9 states have call successors, (9), 1 states have call predecessors, (9), 16 states have return successors, (16), 16 states have call predecessors, (16), 9 states have call successors, (16) [2024-11-03 05:43:53,443 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 05:43:53,443 INFO L93 Difference]: Finished difference Result 46 states and 48 transitions. [2024-11-03 05:43:53,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2024-11-03 05:43:53,444 INFO L78 Accepts]: Start accepts. Automaton has has 45 states, 45 states have (on average 1.2666666666666666) internal successors, (57), 29 states have internal predecessors, (57), 9 states have call successors, (9), 1 states have call predecessors, (9), 16 states have return successors, (16), 16 states have call predecessors, (16), 9 states have call successors, (16) Word has length 53 [2024-11-03 05:43:53,444 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 05:43:53,445 INFO L225 Difference]: With dead ends: 46 [2024-11-03 05:43:53,445 INFO L226 Difference]: Without dead ends: 40 [2024-11-03 05:43:53,446 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 120 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 407 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=385, Invalid=3275, Unknown=0, NotChecked=0, Total=3660 [2024-11-03 05:43:53,447 INFO L432 NwaCegarLoop]: 16 mSDtfsCounter, 116 mSDsluCounter, 267 mSDsCounter, 0 mSdLazyCounter, 460 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 126 SdHoareTripleChecker+Valid, 283 SdHoareTripleChecker+Invalid, 516 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 460 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-03 05:43:53,447 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [126 Valid, 283 Invalid, 516 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 460 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-03 05:43:53,448 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2024-11-03 05:43:53,453 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 40. [2024-11-03 05:43:53,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40 states, 27 states have (on average 1.037037037037037) internal successors, (28), 28 states have internal predecessors, (28), 2 states have call successors, (2), 1 states have call predecessors, (2), 10 states have return successors, (11), 10 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-03 05:43:53,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 41 transitions. [2024-11-03 05:43:53,455 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 41 transitions. Word has length 53 [2024-11-03 05:43:53,455 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 05:43:53,455 INFO L471 AbstractCegarLoop]: Abstraction has 40 states and 41 transitions. [2024-11-03 05:43:53,455 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 45 states, 45 states have (on average 1.2666666666666666) internal successors, (57), 29 states have internal predecessors, (57), 9 states have call successors, (9), 1 states have call predecessors, (9), 16 states have return successors, (16), 16 states have call predecessors, (16), 9 states have call successors, (16) [2024-11-03 05:43:53,455 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 41 transitions. [2024-11-03 05:43:53,457 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-11-03 05:43:53,457 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 05:43:53,457 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 9, 9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-03 05:43:53,459 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (6)] Forceful destruction successful, exit code 0 [2024-11-03 05:43:53,657 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 05:43:53,658 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 05:43:53,658 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 05:43:53,658 INFO L85 PathProgramCache]: Analyzing trace with hash 788849844, now seen corresponding path program 5 times [2024-11-03 05:43:53,658 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 05:43:53,659 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1156502243] [2024-11-03 05:43:53,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 05:43:53,659 INFO L173 SolverBuilder]: Constructing external solver with command: cvc5 --incremental --print-success --lang smt [2024-11-03 05:43:53,659 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 [2024-11-03 05:43:53,660 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 05:43:53,661 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 05:43:53,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 05:43:53,708 INFO L255 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 43 conjuncts are in the unsatisfiable core [2024-11-03 05:43:53,711 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 05:43:54,068 INFO L134 CoverageAnalysis]: Checked inductivity of 252 backedges. 0 proven. 126 refuted. 0 times theorem prover too weak. 126 trivial. 0 not checked. [2024-11-03 05:43:54,068 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 05:43:57,220 INFO L134 CoverageAnalysis]: Checked inductivity of 252 backedges. 0 proven. 207 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2024-11-03 05:43:57,220 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 05:43:57,220 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1156502243] [2024-11-03 05:43:57,220 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [1156502243] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-03 05:43:57,220 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-03 05:43:57,220 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 33] total 55 [2024-11-03 05:43:57,220 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2050434718] [2024-11-03 05:43:57,221 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-03 05:43:57,221 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 55 states [2024-11-03 05:43:57,221 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 05:43:57,222 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 55 interpolants. [2024-11-03 05:43:57,223 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=191, Invalid=2779, Unknown=0, NotChecked=0, Total=2970 [2024-11-03 05:43:57,223 INFO L87 Difference]: Start difference. First operand 40 states and 41 transitions. Second operand has 55 states, 55 states have (on average 1.2545454545454546) internal successors, (69), 35 states have internal predecessors, (69), 11 states have call successors, (11), 1 states have call predecessors, (11), 20 states have return successors, (20), 20 states have call predecessors, (20), 11 states have call successors, (20) [2024-11-03 05:43:58,400 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 05:43:58,400 INFO L93 Difference]: Finished difference Result 52 states and 54 transitions. [2024-11-03 05:43:58,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2024-11-03 05:43:58,401 INFO L78 Accepts]: Start accepts. Automaton has has 55 states, 55 states have (on average 1.2545454545454546) internal successors, (69), 35 states have internal predecessors, (69), 11 states have call successors, (11), 1 states have call predecessors, (11), 20 states have return successors, (20), 20 states have call predecessors, (20), 11 states have call successors, (20) Word has length 65 [2024-11-03 05:43:58,402 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 05:43:58,403 INFO L225 Difference]: With dead ends: 52 [2024-11-03 05:43:58,403 INFO L226 Difference]: Without dead ends: 46 [2024-11-03 05:43:58,407 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 148 GetRequests, 75 SyntacticMatches, 0 SemanticMatches, 73 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 638 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=523, Invalid=5027, Unknown=0, NotChecked=0, Total=5550 [2024-11-03 05:43:58,408 INFO L432 NwaCegarLoop]: 18 mSDtfsCounter, 22 mSDsluCounter, 443 mSDsCounter, 0 mSdLazyCounter, 775 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 461 SdHoareTripleChecker+Invalid, 776 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 775 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-03 05:43:58,408 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 461 Invalid, 776 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 775 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-03 05:43:58,409 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2024-11-03 05:43:58,419 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 46. [2024-11-03 05:43:58,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 31 states have (on average 1.032258064516129) internal successors, (32), 32 states have internal predecessors, (32), 2 states have call successors, (2), 1 states have call predecessors, (2), 12 states have return successors, (13), 12 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-03 05:43:58,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 47 transitions. [2024-11-03 05:43:58,424 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 47 transitions. Word has length 65 [2024-11-03 05:43:58,424 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 05:43:58,424 INFO L471 AbstractCegarLoop]: Abstraction has 46 states and 47 transitions. [2024-11-03 05:43:58,425 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 55 states, 55 states have (on average 1.2545454545454546) internal successors, (69), 35 states have internal predecessors, (69), 11 states have call successors, (11), 1 states have call predecessors, (11), 20 states have return successors, (20), 20 states have call predecessors, (20), 11 states have call successors, (20) [2024-11-03 05:43:58,425 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 47 transitions. [2024-11-03 05:43:58,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-11-03 05:43:58,426 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 05:43:58,426 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 11, 11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-03 05:43:58,432 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 05:43:58,629 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 05:43:58,630 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 05:43:58,630 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 05:43:58,630 INFO L85 PathProgramCache]: Analyzing trace with hash 1302253684, now seen corresponding path program 6 times [2024-11-03 05:43:58,630 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 05:43:58,630 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [889037690] [2024-11-03 05:43:58,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 05:43:58,631 INFO L173 SolverBuilder]: Constructing external solver with command: cvc5 --incremental --print-success --lang smt [2024-11-03 05:43:58,631 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 [2024-11-03 05:43:58,634 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 05:43:58,635 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 05:43:58,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 05:43:58,696 INFO L255 TraceCheckSpWp]: Trace formula consists of 113 conjuncts, 51 conjuncts are in the unsatisfiable core [2024-11-03 05:43:58,709 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 05:43:59,221 INFO L134 CoverageAnalysis]: Checked inductivity of 374 backedges. 0 proven. 187 refuted. 0 times theorem prover too weak. 187 trivial. 0 not checked. [2024-11-03 05:43:59,221 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 05:44:03,388 INFO L134 CoverageAnalysis]: Checked inductivity of 374 backedges. 0 proven. 308 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2024-11-03 05:44:03,389 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 05:44:03,389 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [889037690] [2024-11-03 05:44:03,389 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [889037690] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-03 05:44:03,389 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-03 05:44:03,389 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [28, 39] total 65 [2024-11-03 05:44:03,389 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [112701204] [2024-11-03 05:44:03,389 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-03 05:44:03,390 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 65 states [2024-11-03 05:44:03,390 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 05:44:03,391 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 65 interpolants. [2024-11-03 05:44:03,392 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=229, Invalid=3931, Unknown=0, NotChecked=0, Total=4160 [2024-11-03 05:44:03,392 INFO L87 Difference]: Start difference. First operand 46 states and 47 transitions. Second operand has 65 states, 65 states have (on average 1.2461538461538462) internal successors, (81), 41 states have internal predecessors, (81), 13 states have call successors, (13), 1 states have call predecessors, (13), 24 states have return successors, (24), 24 states have call predecessors, (24), 13 states have call successors, (24) [2024-11-03 05:44:04,952 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 05:44:04,952 INFO L93 Difference]: Finished difference Result 58 states and 60 transitions. [2024-11-03 05:44:04,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2024-11-03 05:44:04,953 INFO L78 Accepts]: Start accepts. Automaton has has 65 states, 65 states have (on average 1.2461538461538462) internal successors, (81), 41 states have internal predecessors, (81), 13 states have call successors, (13), 1 states have call predecessors, (13), 24 states have return successors, (24), 24 states have call predecessors, (24), 13 states have call successors, (24) Word has length 77 [2024-11-03 05:44:04,953 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 05:44:04,954 INFO L225 Difference]: With dead ends: 58 [2024-11-03 05:44:04,954 INFO L226 Difference]: Without dead ends: 52 [2024-11-03 05:44:04,956 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 176 GetRequests, 89 SyntacticMatches, 0 SemanticMatches, 87 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 921 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=677, Invalid=7155, Unknown=0, NotChecked=0, Total=7832 [2024-11-03 05:44:04,956 INFO L432 NwaCegarLoop]: 20 mSDtfsCounter, 50 mSDsluCounter, 624 mSDsCounter, 0 mSdLazyCounter, 1170 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 644 SdHoareTripleChecker+Invalid, 1184 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 1170 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-03 05:44:04,957 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [64 Valid, 644 Invalid, 1184 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 1170 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-03 05:44:04,957 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2024-11-03 05:44:04,963 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2024-11-03 05:44:04,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52 states, 35 states have (on average 1.0285714285714285) internal successors, (36), 36 states have internal predecessors, (36), 2 states have call successors, (2), 1 states have call predecessors, (2), 14 states have return successors, (15), 14 states have call predecessors, (15), 2 states have call successors, (15) [2024-11-03 05:44:04,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 53 transitions. [2024-11-03 05:44:04,964 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 53 transitions. Word has length 77 [2024-11-03 05:44:04,964 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 05:44:04,965 INFO L471 AbstractCegarLoop]: Abstraction has 52 states and 53 transitions. [2024-11-03 05:44:04,965 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 65 states, 65 states have (on average 1.2461538461538462) internal successors, (81), 41 states have internal predecessors, (81), 13 states have call successors, (13), 1 states have call predecessors, (13), 24 states have return successors, (24), 24 states have call predecessors, (24), 13 states have call successors, (24) [2024-11-03 05:44:04,965 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 53 transitions. [2024-11-03 05:44:04,966 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2024-11-03 05:44:04,966 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 05:44:04,966 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 13, 13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-03 05:44:04,969 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (8)] Ended with exit code 0 [2024-11-03 05:44:05,168 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 05:44:05,168 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 05:44:05,169 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 05:44:05,169 INFO L85 PathProgramCache]: Analyzing trace with hash -1287742412, now seen corresponding path program 7 times [2024-11-03 05:44:05,169 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 05:44:05,169 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [229089898] [2024-11-03 05:44:05,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 05:44:05,169 INFO L173 SolverBuilder]: Constructing external solver with command: cvc5 --incremental --print-success --lang smt [2024-11-03 05:44:05,169 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 [2024-11-03 05:44:05,171 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 05:44:05,171 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 05:44:05,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 05:44:05,235 INFO L255 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 59 conjuncts are in the unsatisfiable core [2024-11-03 05:44:05,238 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 05:44:05,809 INFO L134 CoverageAnalysis]: Checked inductivity of 520 backedges. 0 proven. 260 refuted. 0 times theorem prover too weak. 260 trivial. 0 not checked. [2024-11-03 05:44:05,809 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 05:44:11,278 INFO L134 CoverageAnalysis]: Checked inductivity of 520 backedges. 0 proven. 429 refuted. 0 times theorem prover too weak. 91 trivial. 0 not checked. [2024-11-03 05:44:11,279 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 05:44:11,279 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [229089898] [2024-11-03 05:44:11,279 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [229089898] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-03 05:44:11,279 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-03 05:44:11,279 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [32, 45] total 75 [2024-11-03 05:44:11,279 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [52875985] [2024-11-03 05:44:11,279 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-03 05:44:11,280 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 75 states [2024-11-03 05:44:11,280 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 05:44:11,281 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 75 interpolants. [2024-11-03 05:44:11,282 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=267, Invalid=5283, Unknown=0, NotChecked=0, Total=5550 [2024-11-03 05:44:11,283 INFO L87 Difference]: Start difference. First operand 52 states and 53 transitions. Second operand has 75 states, 75 states have (on average 1.24) internal successors, (93), 47 states have internal predecessors, (93), 15 states have call successors, (15), 1 states have call predecessors, (15), 28 states have return successors, (28), 28 states have call predecessors, (28), 15 states have call successors, (28) [2024-11-03 05:44:13,338 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 05:44:13,338 INFO L93 Difference]: Finished difference Result 64 states and 66 transitions. [2024-11-03 05:44:13,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2024-11-03 05:44:13,339 INFO L78 Accepts]: Start accepts. Automaton has has 75 states, 75 states have (on average 1.24) internal successors, (93), 47 states have internal predecessors, (93), 15 states have call successors, (15), 1 states have call predecessors, (15), 28 states have return successors, (28), 28 states have call predecessors, (28), 15 states have call successors, (28) Word has length 89 [2024-11-03 05:44:13,339 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 05:44:13,340 INFO L225 Difference]: With dead ends: 64 [2024-11-03 05:44:13,340 INFO L226 Difference]: Without dead ends: 58 [2024-11-03 05:44:13,343 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 204 GetRequests, 103 SyntacticMatches, 0 SemanticMatches, 101 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1256 ImplicationChecksByTransitivity, 4.4s TimeCoverageRelationStatistics Valid=847, Invalid=9659, Unknown=0, NotChecked=0, Total=10506 [2024-11-03 05:44:13,343 INFO L432 NwaCegarLoop]: 22 mSDtfsCounter, 114 mSDsluCounter, 741 mSDsCounter, 0 mSdLazyCounter, 1299 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 130 SdHoareTripleChecker+Valid, 763 SdHoareTripleChecker+Invalid, 1345 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 1299 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-03 05:44:13,343 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [130 Valid, 763 Invalid, 1345 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 1299 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-03 05:44:13,344 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2024-11-03 05:44:13,350 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 58. [2024-11-03 05:44:13,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58 states, 39 states have (on average 1.0256410256410255) internal successors, (40), 40 states have internal predecessors, (40), 2 states have call successors, (2), 1 states have call predecessors, (2), 16 states have return successors, (17), 16 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-03 05:44:13,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 59 transitions. [2024-11-03 05:44:13,351 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 59 transitions. Word has length 89 [2024-11-03 05:44:13,351 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 05:44:13,351 INFO L471 AbstractCegarLoop]: Abstraction has 58 states and 59 transitions. [2024-11-03 05:44:13,352 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 75 states, 75 states have (on average 1.24) internal successors, (93), 47 states have internal predecessors, (93), 15 states have call successors, (15), 1 states have call predecessors, (15), 28 states have return successors, (28), 28 states have call predecessors, (28), 15 states have call successors, (28) [2024-11-03 05:44:13,352 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 59 transitions. [2024-11-03 05:44:13,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-11-03 05:44:13,353 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 05:44:13,353 INFO L215 NwaCegarLoop]: trace histogram [16, 16, 15, 15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-03 05:44:13,355 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 05:44:13,555 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 05:44:13,555 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 05:44:13,555 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 05:44:13,555 INFO L85 PathProgramCache]: Analyzing trace with hash 1760839668, now seen corresponding path program 8 times [2024-11-03 05:44:13,556 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 05:44:13,556 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1373325020] [2024-11-03 05:44:13,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 05:44:13,556 INFO L173 SolverBuilder]: Constructing external solver with command: cvc5 --incremental --print-success --lang smt [2024-11-03 05:44:13,556 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 [2024-11-03 05:44:13,557 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 05:44:13,558 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 05:44:13,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 05:44:13,630 INFO L255 TraceCheckSpWp]: Trace formula consists of 145 conjuncts, 67 conjuncts are in the unsatisfiable core [2024-11-03 05:44:13,632 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 05:44:14,345 INFO L134 CoverageAnalysis]: Checked inductivity of 690 backedges. 0 proven. 345 refuted. 0 times theorem prover too weak. 345 trivial. 0 not checked. [2024-11-03 05:44:14,345 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 05:44:21,179 INFO L134 CoverageAnalysis]: Checked inductivity of 690 backedges. 0 proven. 570 refuted. 0 times theorem prover too weak. 120 trivial. 0 not checked. [2024-11-03 05:44:21,180 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 05:44:21,180 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1373325020] [2024-11-03 05:44:21,180 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [1373325020] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-03 05:44:21,180 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-03 05:44:21,180 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [36, 51] total 85 [2024-11-03 05:44:21,180 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1778403324] [2024-11-03 05:44:21,180 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-03 05:44:21,181 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 85 states [2024-11-03 05:44:21,181 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 05:44:21,182 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 85 interpolants. [2024-11-03 05:44:21,183 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=305, Invalid=6835, Unknown=0, NotChecked=0, Total=7140 [2024-11-03 05:44:21,183 INFO L87 Difference]: Start difference. First operand 58 states and 59 transitions. Second operand has 85 states, 85 states have (on average 1.2352941176470589) internal successors, (105), 53 states have internal predecessors, (105), 17 states have call successors, (17), 1 states have call predecessors, (17), 32 states have return successors, (32), 32 states have call predecessors, (32), 17 states have call successors, (32) [2024-11-03 05:44:23,885 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 05:44:23,886 INFO L93 Difference]: Finished difference Result 70 states and 72 transitions. [2024-11-03 05:44:23,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2024-11-03 05:44:23,886 INFO L78 Accepts]: Start accepts. Automaton has has 85 states, 85 states have (on average 1.2352941176470589) internal successors, (105), 53 states have internal predecessors, (105), 17 states have call successors, (17), 1 states have call predecessors, (17), 32 states have return successors, (32), 32 states have call predecessors, (32), 17 states have call successors, (32) Word has length 101 [2024-11-03 05:44:23,887 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 05:44:23,888 INFO L225 Difference]: With dead ends: 70 [2024-11-03 05:44:23,888 INFO L226 Difference]: Without dead ends: 64 [2024-11-03 05:44:23,890 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 232 GetRequests, 117 SyntacticMatches, 0 SemanticMatches, 115 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1643 ImplicationChecksByTransitivity, 5.5s TimeCoverageRelationStatistics Valid=1033, Invalid=12539, Unknown=0, NotChecked=0, Total=13572 [2024-11-03 05:44:23,891 INFO L432 NwaCegarLoop]: 24 mSDtfsCounter, 226 mSDsluCounter, 973 mSDsCounter, 0 mSdLazyCounter, 1793 mSolverCounterSat, 103 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 244 SdHoareTripleChecker+Valid, 997 SdHoareTripleChecker+Invalid, 1896 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 103 IncrementalHoareTripleChecker+Valid, 1793 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-03 05:44:23,891 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [244 Valid, 997 Invalid, 1896 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [103 Valid, 1793 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-03 05:44:23,891 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2024-11-03 05:44:23,898 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 64. [2024-11-03 05:44:23,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64 states, 43 states have (on average 1.0232558139534884) internal successors, (44), 44 states have internal predecessors, (44), 2 states have call successors, (2), 1 states have call predecessors, (2), 18 states have return successors, (19), 18 states have call predecessors, (19), 2 states have call successors, (19) [2024-11-03 05:44:23,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 65 transitions. [2024-11-03 05:44:23,899 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 65 transitions. Word has length 101 [2024-11-03 05:44:23,899 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 05:44:23,900 INFO L471 AbstractCegarLoop]: Abstraction has 64 states and 65 transitions. [2024-11-03 05:44:23,900 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 85 states, 85 states have (on average 1.2352941176470589) internal successors, (105), 53 states have internal predecessors, (105), 17 states have call successors, (17), 1 states have call predecessors, (17), 32 states have return successors, (32), 32 states have call predecessors, (32), 17 states have call successors, (32) [2024-11-03 05:44:23,900 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 65 transitions. [2024-11-03 05:44:23,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2024-11-03 05:44:23,902 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 05:44:23,902 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 17, 17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-03 05:44:23,906 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 05:44:24,102 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 05:44:24,103 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 05:44:24,103 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 05:44:24,103 INFO L85 PathProgramCache]: Analyzing trace with hash -1211116620, now seen corresponding path program 9 times [2024-11-03 05:44:24,103 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 05:44:24,103 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1265426900] [2024-11-03 05:44:24,103 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 05:44:24,104 INFO L173 SolverBuilder]: Constructing external solver with command: cvc5 --incremental --print-success --lang smt [2024-11-03 05:44:24,104 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 [2024-11-03 05:44:24,105 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 05:44:24,105 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 05:44:24,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 05:44:24,191 INFO L255 TraceCheckSpWp]: Trace formula consists of 161 conjuncts, 75 conjuncts are in the unsatisfiable core [2024-11-03 05:44:24,194 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 05:44:25,036 INFO L134 CoverageAnalysis]: Checked inductivity of 884 backedges. 0 proven. 442 refuted. 0 times theorem prover too weak. 442 trivial. 0 not checked. [2024-11-03 05:44:25,036 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 05:44:33,717 INFO L134 CoverageAnalysis]: Checked inductivity of 884 backedges. 0 proven. 731 refuted. 0 times theorem prover too weak. 153 trivial. 0 not checked. [2024-11-03 05:44:33,717 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 05:44:33,717 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1265426900] [2024-11-03 05:44:33,717 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [1265426900] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-03 05:44:33,718 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-03 05:44:33,718 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [40, 57] total 95 [2024-11-03 05:44:33,718 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1713973660] [2024-11-03 05:44:33,718 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-03 05:44:33,718 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 95 states [2024-11-03 05:44:33,718 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 05:44:33,719 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 95 interpolants. [2024-11-03 05:44:33,720 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=343, Invalid=8587, Unknown=0, NotChecked=0, Total=8930 [2024-11-03 05:44:33,720 INFO L87 Difference]: Start difference. First operand 64 states and 65 transitions. Second operand has 95 states, 95 states have (on average 1.231578947368421) internal successors, (117), 59 states have internal predecessors, (117), 19 states have call successors, (19), 1 states have call predecessors, (19), 36 states have return successors, (36), 36 states have call predecessors, (36), 19 states have call successors, (36) [2024-11-03 05:44:36,842 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 05:44:36,842 INFO L93 Difference]: Finished difference Result 76 states and 78 transitions. [2024-11-03 05:44:36,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2024-11-03 05:44:36,843 INFO L78 Accepts]: Start accepts. Automaton has has 95 states, 95 states have (on average 1.231578947368421) internal successors, (117), 59 states have internal predecessors, (117), 19 states have call successors, (19), 1 states have call predecessors, (19), 36 states have return successors, (36), 36 states have call predecessors, (36), 19 states have call successors, (36) Word has length 113 [2024-11-03 05:44:36,843 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 05:44:36,844 INFO L225 Difference]: With dead ends: 76 [2024-11-03 05:44:36,844 INFO L226 Difference]: Without dead ends: 70 [2024-11-03 05:44:36,846 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 260 GetRequests, 131 SyntacticMatches, 0 SemanticMatches, 129 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2082 ImplicationChecksByTransitivity, 7.0s TimeCoverageRelationStatistics Valid=1235, Invalid=15795, Unknown=0, NotChecked=0, Total=17030 [2024-11-03 05:44:36,846 INFO L432 NwaCegarLoop]: 26 mSDtfsCounter, 470 mSDsluCounter, 1152 mSDsCounter, 0 mSdLazyCounter, 2066 mSolverCounterSat, 229 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 490 SdHoareTripleChecker+Valid, 1178 SdHoareTripleChecker+Invalid, 2295 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 229 IncrementalHoareTripleChecker+Valid, 2066 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-03 05:44:36,847 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [490 Valid, 1178 Invalid, 2295 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [229 Valid, 2066 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-03 05:44:36,847 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2024-11-03 05:44:36,854 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 70. [2024-11-03 05:44:36,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70 states, 47 states have (on average 1.0212765957446808) internal successors, (48), 48 states have internal predecessors, (48), 2 states have call successors, (2), 1 states have call predecessors, (2), 20 states have return successors, (21), 20 states have call predecessors, (21), 2 states have call successors, (21) [2024-11-03 05:44:36,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 71 transitions. [2024-11-03 05:44:36,855 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 71 transitions. Word has length 113 [2024-11-03 05:44:36,856 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 05:44:36,856 INFO L471 AbstractCegarLoop]: Abstraction has 70 states and 71 transitions. [2024-11-03 05:44:36,856 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 95 states, 95 states have (on average 1.231578947368421) internal successors, (117), 59 states have internal predecessors, (117), 19 states have call successors, (19), 1 states have call predecessors, (19), 36 states have return successors, (36), 36 states have call predecessors, (36), 19 states have call successors, (36) [2024-11-03 05:44:36,856 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 71 transitions. [2024-11-03 05:44:36,857 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2024-11-03 05:44:36,858 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 05:44:36,858 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 19, 19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-03 05:44:36,861 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 05:44:37,058 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 05:44:37,059 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 05:44:37,059 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 05:44:37,059 INFO L85 PathProgramCache]: Analyzing trace with hash 685850484, now seen corresponding path program 10 times [2024-11-03 05:44:37,059 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 05:44:37,059 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1394955494] [2024-11-03 05:44:37,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 05:44:37,059 INFO L173 SolverBuilder]: Constructing external solver with command: cvc5 --incremental --print-success --lang smt [2024-11-03 05:44:37,060 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 [2024-11-03 05:44:37,061 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 05:44:37,061 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 05:44:37,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 05:44:37,163 INFO L255 TraceCheckSpWp]: Trace formula consists of 177 conjuncts, 83 conjuncts are in the unsatisfiable core [2024-11-03 05:44:37,166 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 05:44:38,204 INFO L134 CoverageAnalysis]: Checked inductivity of 1102 backedges. 0 proven. 551 refuted. 0 times theorem prover too weak. 551 trivial. 0 not checked. [2024-11-03 05:44:38,204 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 05:44:48,884 INFO L134 CoverageAnalysis]: Checked inductivity of 1102 backedges. 0 proven. 912 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2024-11-03 05:44:48,884 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 05:44:48,884 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1394955494] [2024-11-03 05:44:48,884 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [1394955494] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-03 05:44:48,884 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-03 05:44:48,884 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [44, 63] total 105 [2024-11-03 05:44:48,884 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1045193761] [2024-11-03 05:44:48,884 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-03 05:44:48,885 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 105 states [2024-11-03 05:44:48,885 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 05:44:48,886 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 105 interpolants. [2024-11-03 05:44:48,887 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=381, Invalid=10539, Unknown=0, NotChecked=0, Total=10920 [2024-11-03 05:44:48,887 INFO L87 Difference]: Start difference. First operand 70 states and 71 transitions. Second operand has 105 states, 105 states have (on average 1.2285714285714286) internal successors, (129), 65 states have internal predecessors, (129), 21 states have call successors, (21), 1 states have call predecessors, (21), 40 states have return successors, (40), 40 states have call predecessors, (40), 21 states have call successors, (40) [2024-11-03 05:44:52,757 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 05:44:52,757 INFO L93 Difference]: Finished difference Result 82 states and 84 transitions. [2024-11-03 05:44:52,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2024-11-03 05:44:52,758 INFO L78 Accepts]: Start accepts. Automaton has has 105 states, 105 states have (on average 1.2285714285714286) internal successors, (129), 65 states have internal predecessors, (129), 21 states have call successors, (21), 1 states have call predecessors, (21), 40 states have return successors, (40), 40 states have call predecessors, (40), 21 states have call successors, (40) Word has length 125 [2024-11-03 05:44:52,758 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 05:44:52,759 INFO L225 Difference]: With dead ends: 82 [2024-11-03 05:44:52,759 INFO L226 Difference]: Without dead ends: 76 [2024-11-03 05:44:52,761 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 288 GetRequests, 145 SyntacticMatches, 0 SemanticMatches, 143 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2573 ImplicationChecksByTransitivity, 8.6s TimeCoverageRelationStatistics Valid=1453, Invalid=19427, Unknown=0, NotChecked=0, Total=20880 [2024-11-03 05:44:52,761 INFO L432 NwaCegarLoop]: 28 mSDtfsCounter, 764 mSDsluCounter, 1459 mSDsCounter, 0 mSdLazyCounter, 2837 mSolverCounterSat, 380 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 786 SdHoareTripleChecker+Valid, 1487 SdHoareTripleChecker+Invalid, 3217 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 380 IncrementalHoareTripleChecker+Valid, 2837 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-11-03 05:44:52,762 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [786 Valid, 1487 Invalid, 3217 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [380 Valid, 2837 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-11-03 05:44:52,762 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2024-11-03 05:44:52,775 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 76. [2024-11-03 05:44:52,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 76 states, 51 states have (on average 1.0196078431372548) internal successors, (52), 52 states have internal predecessors, (52), 2 states have call successors, (2), 1 states have call predecessors, (2), 22 states have return successors, (23), 22 states have call predecessors, (23), 2 states have call successors, (23) [2024-11-03 05:44:52,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 77 transitions. [2024-11-03 05:44:52,776 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 77 transitions. Word has length 125 [2024-11-03 05:44:52,776 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 05:44:52,776 INFO L471 AbstractCegarLoop]: Abstraction has 76 states and 77 transitions. [2024-11-03 05:44:52,776 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 105 states, 105 states have (on average 1.2285714285714286) internal successors, (129), 65 states have internal predecessors, (129), 21 states have call successors, (21), 1 states have call predecessors, (21), 40 states have return successors, (40), 40 states have call predecessors, (40), 21 states have call successors, (40) [2024-11-03 05:44:52,777 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 77 transitions. [2024-11-03 05:44:52,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2024-11-03 05:44:52,779 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 05:44:52,779 INFO L215 NwaCegarLoop]: trace histogram [22, 22, 21, 21, 21, 21, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-03 05:44:52,782 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 05:44:52,979 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 05:44:52,980 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 05:44:52,980 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 05:44:52,980 INFO L85 PathProgramCache]: Analyzing trace with hash -2059891916, now seen corresponding path program 11 times [2024-11-03 05:44:52,980 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 05:44:52,980 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [290014836] [2024-11-03 05:44:52,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 05:44:52,980 INFO L173 SolverBuilder]: Constructing external solver with command: cvc5 --incremental --print-success --lang smt [2024-11-03 05:44:52,981 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 [2024-11-03 05:44:52,982 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 05:44:52,983 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 05:44:53,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 05:44:53,112 INFO L255 TraceCheckSpWp]: Trace formula consists of 193 conjuncts, 91 conjuncts are in the unsatisfiable core [2024-11-03 05:44:53,127 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 05:44:54,246 INFO L134 CoverageAnalysis]: Checked inductivity of 1344 backedges. 0 proven. 672 refuted. 0 times theorem prover too weak. 672 trivial. 0 not checked. [2024-11-03 05:44:54,246 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 05:45:06,991 INFO L134 CoverageAnalysis]: Checked inductivity of 1344 backedges. 0 proven. 1113 refuted. 0 times theorem prover too weak. 231 trivial. 0 not checked. [2024-11-03 05:45:06,992 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 05:45:06,992 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [290014836] [2024-11-03 05:45:06,992 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [290014836] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-03 05:45:06,992 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-03 05:45:06,992 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [48, 69] total 115 [2024-11-03 05:45:06,992 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [181719765] [2024-11-03 05:45:06,992 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-03 05:45:06,992 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 115 states [2024-11-03 05:45:06,992 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 05:45:06,994 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 115 interpolants. [2024-11-03 05:45:06,994 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=419, Invalid=12691, Unknown=0, NotChecked=0, Total=13110 [2024-11-03 05:45:06,995 INFO L87 Difference]: Start difference. First operand 76 states and 77 transitions. Second operand has 115 states, 115 states have (on average 1.2260869565217392) internal successors, (141), 71 states have internal predecessors, (141), 23 states have call successors, (23), 1 states have call predecessors, (23), 44 states have return successors, (44), 44 states have call predecessors, (44), 23 states have call successors, (44) [2024-11-03 05:45:11,402 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 05:45:11,403 INFO L93 Difference]: Finished difference Result 88 states and 90 transitions. [2024-11-03 05:45:11,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2024-11-03 05:45:11,404 INFO L78 Accepts]: Start accepts. Automaton has has 115 states, 115 states have (on average 1.2260869565217392) internal successors, (141), 71 states have internal predecessors, (141), 23 states have call successors, (23), 1 states have call predecessors, (23), 44 states have return successors, (44), 44 states have call predecessors, (44), 23 states have call successors, (44) Word has length 137 [2024-11-03 05:45:11,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 05:45:11,405 INFO L225 Difference]: With dead ends: 88 [2024-11-03 05:45:11,405 INFO L226 Difference]: Without dead ends: 82 [2024-11-03 05:45:11,406 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 316 GetRequests, 159 SyntacticMatches, 0 SemanticMatches, 157 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3116 ImplicationChecksByTransitivity, 10.2s TimeCoverageRelationStatistics Valid=1687, Invalid=23435, Unknown=0, NotChecked=0, Total=25122 [2024-11-03 05:45:11,406 INFO L432 NwaCegarLoop]: 30 mSDtfsCounter, 224 mSDsluCounter, 1736 mSDsCounter, 0 mSdLazyCounter, 3187 mSolverCounterSat, 94 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 248 SdHoareTripleChecker+Valid, 1766 SdHoareTripleChecker+Invalid, 3281 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 94 IncrementalHoareTripleChecker+Valid, 3187 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-11-03 05:45:11,407 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [248 Valid, 1766 Invalid, 3281 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [94 Valid, 3187 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-11-03 05:45:11,407 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2024-11-03 05:45:11,419 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 82. [2024-11-03 05:45:11,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 82 states, 55 states have (on average 1.018181818181818) internal successors, (56), 56 states have internal predecessors, (56), 2 states have call successors, (2), 1 states have call predecessors, (2), 24 states have return successors, (25), 24 states have call predecessors, (25), 2 states have call successors, (25) [2024-11-03 05:45:11,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 83 transitions. [2024-11-03 05:45:11,420 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 83 transitions. Word has length 137 [2024-11-03 05:45:11,420 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 05:45:11,420 INFO L471 AbstractCegarLoop]: Abstraction has 82 states and 83 transitions. [2024-11-03 05:45:11,420 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 115 states, 115 states have (on average 1.2260869565217392) internal successors, (141), 71 states have internal predecessors, (141), 23 states have call successors, (23), 1 states have call predecessors, (23), 44 states have return successors, (44), 44 states have call predecessors, (44), 23 states have call successors, (44) [2024-11-03 05:45:11,420 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 83 transitions. [2024-11-03 05:45:11,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2024-11-03 05:45:11,421 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 05:45:11,421 INFO L215 NwaCegarLoop]: trace histogram [24, 24, 23, 23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-03 05:45:11,424 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (13)] Ended with exit code 0 [2024-11-03 05:45:11,622 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 05:45:11,622 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 05:45:11,622 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 05:45:11,623 INFO L85 PathProgramCache]: Analyzing trace with hash -706365708, now seen corresponding path program 12 times [2024-11-03 05:45:11,623 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 05:45:11,623 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [477464470] [2024-11-03 05:45:11,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 05:45:11,623 INFO L173 SolverBuilder]: Constructing external solver with command: cvc5 --incremental --print-success --lang smt [2024-11-03 05:45:11,623 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 [2024-11-03 05:45:11,624 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 05:45:11,625 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 05:45:11,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 05:45:11,772 INFO L255 TraceCheckSpWp]: Trace formula consists of 209 conjuncts, 99 conjuncts are in the unsatisfiable core [2024-11-03 05:45:11,777 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 05:45:13,125 INFO L134 CoverageAnalysis]: Checked inductivity of 1610 backedges. 0 proven. 805 refuted. 0 times theorem prover too weak. 805 trivial. 0 not checked. [2024-11-03 05:45:13,125 INFO L311 TraceCheckSpWp]: Computing backward predicates...