/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/floats-nonlinear/color-sendmoremoney.c -------------------------------------------------------------------------------- This is Ultimate 0.2.5-dev-b75d321-m [2024-11-03 07:30:31,863 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-03 07:30:31,931 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 07:30:31,936 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-03 07:30:31,936 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-03 07:30:31,967 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-03 07:30:31,967 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-03 07:30:31,968 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-03 07:30:31,970 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-03 07:30:31,971 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-03 07:30:31,971 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-03 07:30:31,972 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-03 07:30:31,972 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-03 07:30:31,972 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-03 07:30:31,973 INFO L153 SettingsManager]: * Use SBE=true [2024-11-03 07:30:31,973 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-03 07:30:31,973 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-03 07:30:31,973 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-03 07:30:31,974 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-03 07:30:31,974 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-03 07:30:31,977 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-03 07:30:31,978 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-03 07:30:31,978 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-03 07:30:31,978 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-03 07:30:31,978 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-03 07:30:31,978 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-03 07:30:31,979 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-03 07:30:31,979 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-03 07:30:31,979 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-03 07:30:31,979 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-03 07:30:31,980 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-03 07:30:31,980 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-03 07:30:31,980 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-03 07:30:31,980 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-03 07:30:31,980 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-03 07:30:31,981 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-03 07:30:31,981 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-03 07:30:31,981 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-03 07:30:31,981 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-11-03 07:30:31,981 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-03 07:30:31,982 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-03 07:30:31,982 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-03 07:30:31,982 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-03 07:30:31,982 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-03 07:30:31,982 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Allow undefined functions -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Command for external solver -> cvc5 --incremental --print-success --lang smt [2024-11-03 07:30:32,203 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-03 07:30:32,228 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-03 07:30:32,230 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-03 07:30:32,231 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-03 07:30:32,231 INFO L274 PluginConnector]: CDTParser initialized [2024-11-03 07:30:32,232 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/floats-nonlinear/color-sendmoremoney.c [2024-11-03 07:30:33,637 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-03 07:30:33,815 INFO L384 CDTParser]: Found 1 translation units. [2024-11-03 07:30:33,817 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/floats-nonlinear/color-sendmoremoney.c [2024-11-03 07:30:33,825 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a4acb5a0e/3ad5ed8fc3484f91b3965fe6afed172d/FLAGd331b6790 [2024-11-03 07:30:33,840 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a4acb5a0e/3ad5ed8fc3484f91b3965fe6afed172d [2024-11-03 07:30:33,843 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-03 07:30:33,844 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-11-03 07:30:33,847 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-03 07:30:33,847 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-03 07:30:33,852 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-03 07:30:33,853 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 07:30:33" (1/1) ... [2024-11-03 07:30:33,854 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6303b80e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 07:30:33, skipping insertion in model container [2024-11-03 07:30:33,854 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 07:30:33" (1/1) ... [2024-11-03 07:30:33,875 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-03 07:30:34,050 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/floats-nonlinear/color-sendmoremoney.c[614,627] [2024-11-03 07:30:34,085 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-03 07:30:34,098 INFO L200 MainTranslator]: Completed pre-run [2024-11-03 07:30:34,112 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/floats-nonlinear/color-sendmoremoney.c[614,627] [2024-11-03 07:30:34,136 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-03 07:30:34,155 INFO L204 MainTranslator]: Completed translation [2024-11-03 07:30:34,156 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 07:30:34 WrapperNode [2024-11-03 07:30:34,156 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-03 07:30:34,157 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-03 07:30:34,157 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-03 07:30:34,157 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-03 07:30:34,163 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 07:30:34" (1/1) ... [2024-11-03 07:30:34,173 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 07:30:34" (1/1) ... [2024-11-03 07:30:34,197 INFO L138 Inliner]: procedures = 21, calls = 32, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 184 [2024-11-03 07:30:34,203 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-03 07:30:34,204 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-03 07:30:34,204 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-03 07:30:34,204 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-03 07:30:34,214 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 07:30:34" (1/1) ... [2024-11-03 07:30:34,215 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 07:30:34" (1/1) ... [2024-11-03 07:30:34,221 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 07:30:34" (1/1) ... [2024-11-03 07:30:34,244 INFO L175 MemorySlicer]: Split 12 memory accesses to 2 slices as follows [2, 10]. 83 percent of accesses are in the largest equivalence class. The 10 initializations are split as follows [2, 8]. The 0 writes are split as follows [0, 0]. [2024-11-03 07:30:34,244 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 07:30:34" (1/1) ... [2024-11-03 07:30:34,245 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 07:30:34" (1/1) ... [2024-11-03 07:30:34,255 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 07:30:34" (1/1) ... [2024-11-03 07:30:34,261 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 07:30:34" (1/1) ... [2024-11-03 07:30:34,262 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 07:30:34" (1/1) ... [2024-11-03 07:30:34,264 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 07:30:34" (1/1) ... [2024-11-03 07:30:34,269 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-03 07:30:34,269 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-03 07:30:34,270 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-03 07:30:34,270 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-03 07:30:34,275 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 07:30:34" (1/1) ... [2024-11-03 07:30:34,280 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-03 07:30:34,288 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-03 07:30:34,302 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 07:30:34,308 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 07:30:34,326 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-03 07:30:34,326 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-03 07:30:34,326 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2024-11-03 07:30:34,326 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#0 [2024-11-03 07:30:34,326 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#1 [2024-11-03 07:30:34,326 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-03 07:30:34,327 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2024-11-03 07:30:34,327 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2024-11-03 07:30:34,327 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-03 07:30:34,327 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-03 07:30:34,327 INFO L130 BoogieDeclarations]: Found specification of procedure check_domain_0 [2024-11-03 07:30:34,327 INFO L138 BoogieDeclarations]: Found implementation of procedure check_domain_0 [2024-11-03 07:30:34,327 INFO L130 BoogieDeclarations]: Found specification of procedure check_domain_1 [2024-11-03 07:30:34,327 INFO L138 BoogieDeclarations]: Found implementation of procedure check_domain_1 [2024-11-03 07:30:34,328 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-03 07:30:34,408 INFO L238 CfgBuilder]: Building ICFG [2024-11-03 07:30:34,409 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-03 07:30:34,750 INFO L? ?]: Removed 78 outVars from TransFormulas that were not future-live. [2024-11-03 07:30:34,750 INFO L287 CfgBuilder]: Performing block encoding [2024-11-03 07:30:34,765 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-03 07:30:34,767 INFO L316 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-03 07:30:34,768 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 07:30:34 BoogieIcfgContainer [2024-11-03 07:30:34,768 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-03 07:30:34,769 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-03 07:30:34,770 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-03 07:30:34,772 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-03 07:30:34,772 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 07:30:33" (1/3) ... [2024-11-03 07:30:34,773 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2343ae42 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 07:30:34, skipping insertion in model container [2024-11-03 07:30:34,773 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 07:30:34" (2/3) ... [2024-11-03 07:30:34,773 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2343ae42 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 07:30:34, skipping insertion in model container [2024-11-03 07:30:34,773 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 07:30:34" (3/3) ... [2024-11-03 07:30:34,774 INFO L112 eAbstractionObserver]: Analyzing ICFG color-sendmoremoney.c [2024-11-03 07:30:34,787 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-03 07:30:34,788 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-03 07:30:34,839 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-03 07:30:34,846 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;@23259b5f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-03 07:30:34,847 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-03 07:30:34,850 INFO L276 IsEmpty]: Start isEmpty. Operand has 58 states, 46 states have (on average 1.391304347826087) internal successors, (64), 47 states have internal predecessors, (64), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-03 07:30:34,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2024-11-03 07:30:34,856 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 07:30:34,856 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-03 07:30:34,856 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 07:30:34,860 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 07:30:34,860 INFO L85 PathProgramCache]: Analyzing trace with hash -871385011, now seen corresponding path program 1 times [2024-11-03 07:30:34,866 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 07:30:34,866 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [853767721] [2024-11-03 07:30:34,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 07:30:34,868 INFO L173 SolverBuilder]: Constructing external solver with command: cvc5 --incremental --print-success --lang smt [2024-11-03 07:30:34,868 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 [2024-11-03 07:30:34,871 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 07:30:34,872 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 07:30:34,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 07:30:34,992 INFO L255 TraceCheckSpWp]: Trace formula consists of 60 conjuncts, 25 conjuncts are in the unsatisfiable core [2024-11-03 07:30:35,004 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 07:30:35,116 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 07:30:35,116 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 07:30:35,192 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 07:30:35,193 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 07:30:35,193 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [853767721] [2024-11-03 07:30:35,194 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [853767721] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-03 07:30:35,196 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-03 07:30:35,196 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 4] imperfect sequences [] total 6 [2024-11-03 07:30:35,198 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [860292808] [2024-11-03 07:30:35,198 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-03 07:30:35,202 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-03 07:30:35,202 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 07:30:35,223 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-03 07:30:35,224 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-03 07:30:35,226 INFO L87 Difference]: Start difference. First operand has 58 states, 46 states have (on average 1.391304347826087) internal successors, (64), 47 states have internal predecessors, (64), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) Second operand has 6 states, 6 states have (on average 4.833333333333333) internal successors, (29), 6 states have internal predecessors, (29), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-03 07:30:35,281 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 07:30:35,282 INFO L93 Difference]: Finished difference Result 79 states and 109 transitions. [2024-11-03 07:30:35,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-03 07:30:35,284 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.833333333333333) internal successors, (29), 6 states have internal predecessors, (29), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 27 [2024-11-03 07:30:35,284 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 07:30:35,291 INFO L225 Difference]: With dead ends: 79 [2024-11-03 07:30:35,291 INFO L226 Difference]: Without dead ends: 56 [2024-11-03 07:30:35,293 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-03 07:30:35,296 INFO L432 NwaCegarLoop]: 75 mSDtfsCounter, 0 mSDsluCounter, 218 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 293 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-03 07:30:35,297 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 293 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-03 07:30:35,311 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2024-11-03 07:30:35,332 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 54. [2024-11-03 07:30:35,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54 states, 43 states have (on average 1.302325581395349) internal successors, (56), 43 states have internal predecessors, (56), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-03 07:30:35,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 72 transitions. [2024-11-03 07:30:35,338 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 72 transitions. Word has length 27 [2024-11-03 07:30:35,338 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 07:30:35,339 INFO L471 AbstractCegarLoop]: Abstraction has 54 states and 72 transitions. [2024-11-03 07:30:35,340 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.833333333333333) internal successors, (29), 6 states have internal predecessors, (29), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-03 07:30:35,340 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 72 transitions. [2024-11-03 07:30:35,343 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2024-11-03 07:30:35,343 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 07:30:35,343 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-03 07:30:35,349 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 07:30:35,544 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 07:30:35,544 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 07:30:35,545 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 07:30:35,545 INFO L85 PathProgramCache]: Analyzing trace with hash -871444593, now seen corresponding path program 1 times [2024-11-03 07:30:35,545 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 07:30:35,545 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1741295669] [2024-11-03 07:30:35,546 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 07:30:35,546 INFO L173 SolverBuilder]: Constructing external solver with command: cvc5 --incremental --print-success --lang smt [2024-11-03 07:30:35,546 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 [2024-11-03 07:30:35,549 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 07:30:35,550 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 07:30:35,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 07:30:35,621 INFO L255 TraceCheckSpWp]: Trace formula consists of 60 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-03 07:30:35,623 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 07:30:35,632 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 07:30:35,633 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 07:30:35,641 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 07:30:35,641 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 07:30:35,641 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1741295669] [2024-11-03 07:30:35,642 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [1741295669] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-03 07:30:35,642 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-03 07:30:35,642 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2024-11-03 07:30:35,642 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1998899042] [2024-11-03 07:30:35,642 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-03 07:30:35,643 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-03 07:30:35,643 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 07:30:35,644 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-03 07:30:35,644 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-03 07:30:35,644 INFO L87 Difference]: Start difference. First operand 54 states and 72 transitions. Second operand has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-03 07:30:35,688 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 07:30:35,689 INFO L93 Difference]: Finished difference Result 59 states and 76 transitions. [2024-11-03 07:30:35,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-03 07:30:35,691 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 27 [2024-11-03 07:30:35,691 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 07:30:35,692 INFO L225 Difference]: With dead ends: 59 [2024-11-03 07:30:35,692 INFO L226 Difference]: Without dead ends: 54 [2024-11-03 07:30:35,692 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-03 07:30:35,693 INFO L432 NwaCegarLoop]: 72 mSDtfsCounter, 0 mSDsluCounter, 65 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 137 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-03 07:30:35,694 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 137 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-03 07:30:35,695 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2024-11-03 07:30:35,703 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 54. [2024-11-03 07:30:35,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54 states, 43 states have (on average 1.2790697674418605) internal successors, (55), 43 states have internal predecessors, (55), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-03 07:30:35,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 71 transitions. [2024-11-03 07:30:35,706 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 71 transitions. Word has length 27 [2024-11-03 07:30:35,706 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 07:30:35,706 INFO L471 AbstractCegarLoop]: Abstraction has 54 states and 71 transitions. [2024-11-03 07:30:35,707 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-03 07:30:35,707 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 71 transitions. [2024-11-03 07:30:35,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2024-11-03 07:30:35,708 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 07:30:35,708 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-03 07:30:35,711 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 07:30:35,908 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 07:30:35,909 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 07:30:35,910 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 07:30:35,910 INFO L85 PathProgramCache]: Analyzing trace with hash 458394128, now seen corresponding path program 1 times [2024-11-03 07:30:35,910 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 07:30:35,910 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [827332963] [2024-11-03 07:30:35,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 07:30:35,911 INFO L173 SolverBuilder]: Constructing external solver with command: cvc5 --incremental --print-success --lang smt [2024-11-03 07:30:35,911 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 [2024-11-03 07:30:35,913 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 07:30:35,914 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 07:30:35,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 07:30:35,999 INFO L255 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-03 07:30:36,001 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 07:30:36,019 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 07:30:36,019 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 07:30:36,038 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 07:30:36,038 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 07:30:36,039 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [827332963] [2024-11-03 07:30:36,039 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [827332963] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-03 07:30:36,039 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-03 07:30:36,039 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2024-11-03 07:30:36,039 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1093179785] [2024-11-03 07:30:36,039 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-03 07:30:36,040 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-03 07:30:36,040 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 07:30:36,041 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-03 07:30:36,041 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-03 07:30:36,041 INFO L87 Difference]: Start difference. First operand 54 states and 71 transitions. Second operand has 4 states, 4 states have (on average 7.0) internal successors, (28), 4 states have internal predecessors, (28), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-03 07:30:36,104 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 07:30:36,104 INFO L93 Difference]: Finished difference Result 69 states and 88 transitions. [2024-11-03 07:30:36,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-03 07:30:36,105 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.0) internal successors, (28), 4 states have internal predecessors, (28), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 30 [2024-11-03 07:30:36,105 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 07:30:36,106 INFO L225 Difference]: With dead ends: 69 [2024-11-03 07:30:36,106 INFO L226 Difference]: Without dead ends: 54 [2024-11-03 07:30:36,107 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-03 07:30:36,108 INFO L432 NwaCegarLoop]: 70 mSDtfsCounter, 0 mSDsluCounter, 128 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 198 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-03 07:30:36,108 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 198 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-03 07:30:36,109 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2024-11-03 07:30:36,113 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 54. [2024-11-03 07:30:36,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54 states, 43 states have (on average 1.255813953488372) internal successors, (54), 43 states have internal predecessors, (54), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-03 07:30:36,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 70 transitions. [2024-11-03 07:30:36,115 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 70 transitions. Word has length 30 [2024-11-03 07:30:36,115 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 07:30:36,115 INFO L471 AbstractCegarLoop]: Abstraction has 54 states and 70 transitions. [2024-11-03 07:30:36,115 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.0) internal successors, (28), 4 states have internal predecessors, (28), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-03 07:30:36,116 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 70 transitions. [2024-11-03 07:30:36,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2024-11-03 07:30:36,117 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 07:30:36,117 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-03 07:30:36,121 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 07:30:36,317 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 07:30:36,318 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 07:30:36,319 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 07:30:36,319 INFO L85 PathProgramCache]: Analyzing trace with hash -1068349750, now seen corresponding path program 1 times [2024-11-03 07:30:36,319 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 07:30:36,319 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [384231654] [2024-11-03 07:30:36,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 07:30:36,320 INFO L173 SolverBuilder]: Constructing external solver with command: cvc5 --incremental --print-success --lang smt [2024-11-03 07:30:36,320 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 [2024-11-03 07:30:36,323 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 07:30:36,324 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 07:30:36,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 07:30:36,414 INFO L255 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-03 07:30:36,416 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 07:30:36,430 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 07:30:36,430 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 07:30:36,445 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 07:30:36,445 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 07:30:36,446 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [384231654] [2024-11-03 07:30:36,446 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [384231654] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-03 07:30:36,446 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-03 07:30:36,446 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2024-11-03 07:30:36,446 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [287879111] [2024-11-03 07:30:36,447 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-03 07:30:36,447 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-03 07:30:36,447 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 07:30:36,448 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-03 07:30:36,448 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-03 07:30:36,448 INFO L87 Difference]: Start difference. First operand 54 states and 70 transitions. Second operand has 4 states, 4 states have (on average 8.75) internal successors, (35), 4 states have internal predecessors, (35), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-03 07:30:36,488 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 07:30:36,488 INFO L93 Difference]: Finished difference Result 77 states and 96 transitions. [2024-11-03 07:30:36,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-03 07:30:36,489 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.75) internal successors, (35), 4 states have internal predecessors, (35), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 36 [2024-11-03 07:30:36,489 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 07:30:36,490 INFO L225 Difference]: With dead ends: 77 [2024-11-03 07:30:36,490 INFO L226 Difference]: Without dead ends: 54 [2024-11-03 07:30:36,490 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 68 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-03 07:30:36,491 INFO L432 NwaCegarLoop]: 69 mSDtfsCounter, 0 mSDsluCounter, 125 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 194 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-03 07:30:36,492 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 194 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-03 07:30:36,493 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2024-11-03 07:30:36,496 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 54. [2024-11-03 07:30:36,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54 states, 43 states have (on average 1.2325581395348837) internal successors, (53), 43 states have internal predecessors, (53), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-03 07:30:36,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 69 transitions. [2024-11-03 07:30:36,498 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 69 transitions. Word has length 36 [2024-11-03 07:30:36,498 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 07:30:36,498 INFO L471 AbstractCegarLoop]: Abstraction has 54 states and 69 transitions. [2024-11-03 07:30:36,498 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.75) internal successors, (35), 4 states have internal predecessors, (35), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-03 07:30:36,499 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 69 transitions. [2024-11-03 07:30:36,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2024-11-03 07:30:36,500 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 07:30:36,500 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-03 07:30:36,503 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (5)] Forceful destruction successful, exit code 0 [2024-11-03 07:30:36,702 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 07:30:36,703 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 07:30:36,703 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 07:30:36,703 INFO L85 PathProgramCache]: Analyzing trace with hash -2116782295, now seen corresponding path program 1 times [2024-11-03 07:30:36,704 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 07:30:36,704 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [921634762] [2024-11-03 07:30:36,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 07:30:36,704 INFO L173 SolverBuilder]: Constructing external solver with command: cvc5 --incremental --print-success --lang smt [2024-11-03 07:30:36,704 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 [2024-11-03 07:30:36,707 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 07:30:36,708 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 07:30:36,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 07:30:36,815 INFO L255 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-03 07:30:36,817 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 07:30:36,834 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-03 07:30:36,834 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 07:30:36,856 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-03 07:30:36,857 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 07:30:36,857 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [921634762] [2024-11-03 07:30:36,857 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [921634762] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-03 07:30:36,857 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-03 07:30:36,857 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2024-11-03 07:30:36,857 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1817237546] [2024-11-03 07:30:36,858 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-03 07:30:36,858 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-03 07:30:36,858 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 07:30:36,859 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-03 07:30:36,859 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-03 07:30:36,860 INFO L87 Difference]: Start difference. First operand 54 states and 69 transitions. Second operand has 4 states, 4 states have (on average 9.0) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-03 07:30:36,889 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 07:30:36,889 INFO L93 Difference]: Finished difference Result 81 states and 100 transitions. [2024-11-03 07:30:36,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-03 07:30:36,890 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.0) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 42 [2024-11-03 07:30:36,891 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 07:30:36,891 INFO L225 Difference]: With dead ends: 81 [2024-11-03 07:30:36,891 INFO L226 Difference]: Without dead ends: 54 [2024-11-03 07:30:36,892 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 80 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-03 07:30:36,893 INFO L432 NwaCegarLoop]: 68 mSDtfsCounter, 0 mSDsluCounter, 123 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 191 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-03 07:30:36,893 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 191 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-03 07:30:36,894 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2024-11-03 07:30:36,900 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 54. [2024-11-03 07:30:36,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54 states, 43 states have (on average 1.2093023255813953) internal successors, (52), 43 states have internal predecessors, (52), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-03 07:30:36,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 68 transitions. [2024-11-03 07:30:36,904 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 68 transitions. Word has length 42 [2024-11-03 07:30:36,904 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 07:30:36,904 INFO L471 AbstractCegarLoop]: Abstraction has 54 states and 68 transitions. [2024-11-03 07:30:36,904 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.0) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-03 07:30:36,905 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 68 transitions. [2024-11-03 07:30:36,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2024-11-03 07:30:36,906 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 07:30:36,906 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-03 07:30:36,909 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (6)] Ended with exit code 0 [2024-11-03 07:30:37,108 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 07:30:37,109 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 07:30:37,110 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 07:30:37,110 INFO L85 PathProgramCache]: Analyzing trace with hash 1147091245, now seen corresponding path program 1 times [2024-11-03 07:30:37,110 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 07:30:37,110 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1323044910] [2024-11-03 07:30:37,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 07:30:37,110 INFO L173 SolverBuilder]: Constructing external solver with command: cvc5 --incremental --print-success --lang smt [2024-11-03 07:30:37,111 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 [2024-11-03 07:30:37,112 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 07:30:37,113 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 07:30:37,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 07:30:37,208 INFO L255 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-03 07:30:37,210 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 07:30:37,223 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-03 07:30:37,224 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 07:30:37,252 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-03 07:30:37,252 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 07:30:37,252 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1323044910] [2024-11-03 07:30:37,252 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [1323044910] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-03 07:30:37,252 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-03 07:30:37,253 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2024-11-03 07:30:37,253 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1930500433] [2024-11-03 07:30:37,253 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-03 07:30:37,253 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-03 07:30:37,253 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 07:30:37,254 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-03 07:30:37,257 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-03 07:30:37,257 INFO L87 Difference]: Start difference. First operand 54 states and 68 transitions. Second operand has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-03 07:30:37,289 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 07:30:37,289 INFO L93 Difference]: Finished difference Result 85 states and 104 transitions. [2024-11-03 07:30:37,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-03 07:30:37,290 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 48 [2024-11-03 07:30:37,290 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 07:30:37,291 INFO L225 Difference]: With dead ends: 85 [2024-11-03 07:30:37,291 INFO L226 Difference]: Without dead ends: 54 [2024-11-03 07:30:37,291 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 92 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-03 07:30:37,292 INFO L432 NwaCegarLoop]: 67 mSDtfsCounter, 0 mSDsluCounter, 121 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 188 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-03 07:30:37,293 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 188 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-03 07:30:37,293 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2024-11-03 07:30:37,297 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 54. [2024-11-03 07:30:37,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54 states, 43 states have (on average 1.186046511627907) internal successors, (51), 43 states have internal predecessors, (51), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-03 07:30:37,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 67 transitions. [2024-11-03 07:30:37,299 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 67 transitions. Word has length 48 [2024-11-03 07:30:37,299 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 07:30:37,299 INFO L471 AbstractCegarLoop]: Abstraction has 54 states and 67 transitions. [2024-11-03 07:30:37,299 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-03 07:30:37,299 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 67 transitions. [2024-11-03 07:30:37,300 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2024-11-03 07:30:37,300 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 07:30:37,301 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-03 07:30:37,304 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (7)] Forceful destruction successful, exit code 0 [2024-11-03 07:30:37,505 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 07:30:37,506 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 07:30:37,506 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 07:30:37,506 INFO L85 PathProgramCache]: Analyzing trace with hash 1009491408, now seen corresponding path program 1 times [2024-11-03 07:30:37,506 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 07:30:37,506 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [662926310] [2024-11-03 07:30:37,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 07:30:37,507 INFO L173 SolverBuilder]: Constructing external solver with command: cvc5 --incremental --print-success --lang smt [2024-11-03 07:30:37,507 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 [2024-11-03 07:30:37,508 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 07:30:37,509 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 07:30:37,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 07:30:37,628 INFO L255 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-03 07:30:37,630 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 07:30:37,648 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-03 07:30:37,648 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 07:30:37,675 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-03 07:30:37,675 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 07:30:37,675 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [662926310] [2024-11-03 07:30:37,675 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [662926310] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-03 07:30:37,676 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-03 07:30:37,676 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2024-11-03 07:30:37,676 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [663432826] [2024-11-03 07:30:37,676 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-03 07:30:37,676 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-03 07:30:37,677 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 07:30:37,677 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-03 07:30:37,677 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-03 07:30:37,678 INFO L87 Difference]: Start difference. First operand 54 states and 67 transitions. Second operand has 4 states, 4 states have (on average 10.25) internal successors, (41), 4 states have internal predecessors, (41), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-03 07:30:37,707 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 07:30:37,708 INFO L93 Difference]: Finished difference Result 93 states and 112 transitions. [2024-11-03 07:30:37,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-03 07:30:37,709 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.25) internal successors, (41), 4 states have internal predecessors, (41), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 54 [2024-11-03 07:30:37,709 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 07:30:37,709 INFO L225 Difference]: With dead ends: 93 [2024-11-03 07:30:37,710 INFO L226 Difference]: Without dead ends: 54 [2024-11-03 07:30:37,710 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 104 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-03 07:30:37,711 INFO L432 NwaCegarLoop]: 66 mSDtfsCounter, 0 mSDsluCounter, 119 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 185 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-03 07:30:37,713 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 185 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-03 07:30:37,714 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2024-11-03 07:30:37,718 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 54. [2024-11-03 07:30:37,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54 states, 43 states have (on average 1.1627906976744187) internal successors, (50), 43 states have internal predecessors, (50), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-03 07:30:37,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 66 transitions. [2024-11-03 07:30:37,720 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 66 transitions. Word has length 54 [2024-11-03 07:30:37,720 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 07:30:37,720 INFO L471 AbstractCegarLoop]: Abstraction has 54 states and 66 transitions. [2024-11-03 07:30:37,720 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.25) internal successors, (41), 4 states have internal predecessors, (41), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-03 07:30:37,721 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 66 transitions. [2024-11-03 07:30:37,721 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2024-11-03 07:30:37,722 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 07:30:37,722 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-03 07:30:37,727 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 07:30:37,922 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt [2024-11-03 07:30:37,923 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 07:30:37,923 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 07:30:37,923 INFO L85 PathProgramCache]: Analyzing trace with hash -2076320482, now seen corresponding path program 1 times [2024-11-03 07:30:37,924 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 07:30:37,924 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [327242066] [2024-11-03 07:30:37,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 07:30:37,924 INFO L173 SolverBuilder]: Constructing external solver with command: cvc5 --incremental --print-success --lang smt [2024-11-03 07:30:37,924 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 [2024-11-03 07:30:37,927 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 07:30:37,928 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 07:30:38,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 07:30:38,038 INFO L255 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-03 07:30:38,040 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 07:30:38,061 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-03 07:30:38,061 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 07:30:38,096 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-03 07:30:38,097 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 07:30:38,097 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [327242066] [2024-11-03 07:30:38,097 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [327242066] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-03 07:30:38,097 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-03 07:30:38,097 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2024-11-03 07:30:38,097 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1880871674] [2024-11-03 07:30:38,098 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-03 07:30:38,098 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-03 07:30:38,098 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 07:30:38,099 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-03 07:30:38,099 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-03 07:30:38,100 INFO L87 Difference]: Start difference. First operand 54 states and 66 transitions. Second operand has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-03 07:30:38,130 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 07:30:38,130 INFO L93 Difference]: Finished difference Result 97 states and 116 transitions. [2024-11-03 07:30:38,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-03 07:30:38,131 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 60 [2024-11-03 07:30:38,131 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 07:30:38,132 INFO L225 Difference]: With dead ends: 97 [2024-11-03 07:30:38,132 INFO L226 Difference]: Without dead ends: 54 [2024-11-03 07:30:38,132 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 116 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-03 07:30:38,133 INFO L432 NwaCegarLoop]: 65 mSDtfsCounter, 0 mSDsluCounter, 117 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 182 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-03 07:30:38,133 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 182 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-03 07:30:38,134 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2024-11-03 07:30:38,140 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 54. [2024-11-03 07:30:38,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54 states, 43 states have (on average 1.1395348837209303) internal successors, (49), 43 states have internal predecessors, (49), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-03 07:30:38,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 65 transitions. [2024-11-03 07:30:38,144 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 65 transitions. Word has length 60 [2024-11-03 07:30:38,144 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 07:30:38,144 INFO L471 AbstractCegarLoop]: Abstraction has 54 states and 65 transitions. [2024-11-03 07:30:38,144 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-03 07:30:38,144 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 65 transitions. [2024-11-03 07:30:38,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2024-11-03 07:30:38,145 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 07:30:38,146 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-03 07:30:38,152 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (9)] Forceful destruction successful, exit code 0 [2024-11-03 07:30:38,346 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 07:30:38,346 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 07:30:38,347 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 07:30:38,347 INFO L85 PathProgramCache]: Analyzing trace with hash -16709615, now seen corresponding path program 1 times [2024-11-03 07:30:38,347 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 07:30:38,347 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [953153675] [2024-11-03 07:30:38,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 07:30:38,347 INFO L173 SolverBuilder]: Constructing external solver with command: cvc5 --incremental --print-success --lang smt [2024-11-03 07:30:38,348 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 [2024-11-03 07:30:38,349 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 07:30:38,350 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 07:30:38,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 07:30:38,459 INFO L255 TraceCheckSpWp]: Trace formula consists of 159 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-03 07:30:38,461 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 07:30:38,478 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-11-03 07:30:38,478 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 07:30:38,511 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2024-11-03 07:30:38,511 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 07:30:38,511 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [953153675] [2024-11-03 07:30:38,512 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [953153675] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-03 07:30:38,512 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-03 07:30:38,512 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2024-11-03 07:30:38,512 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [646496926] [2024-11-03 07:30:38,512 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-03 07:30:38,513 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-03 07:30:38,513 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 07:30:38,513 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-03 07:30:38,513 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-03 07:30:38,514 INFO L87 Difference]: Start difference. First operand 54 states and 65 transitions. Second operand has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-03 07:30:38,541 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 07:30:38,541 INFO L93 Difference]: Finished difference Result 101 states and 120 transitions. [2024-11-03 07:30:38,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-03 07:30:38,541 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 66 [2024-11-03 07:30:38,542 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 07:30:38,542 INFO L225 Difference]: With dead ends: 101 [2024-11-03 07:30:38,542 INFO L226 Difference]: Without dead ends: 54 [2024-11-03 07:30:38,543 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 128 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-03 07:30:38,544 INFO L432 NwaCegarLoop]: 64 mSDtfsCounter, 0 mSDsluCounter, 115 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 179 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-03 07:30:38,544 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 179 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-03 07:30:38,544 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2024-11-03 07:30:38,551 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 54. [2024-11-03 07:30:38,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54 states, 43 states have (on average 1.1162790697674418) internal successors, (48), 43 states have internal predecessors, (48), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-03 07:30:38,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 64 transitions. [2024-11-03 07:30:38,555 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 64 transitions. Word has length 66 [2024-11-03 07:30:38,555 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 07:30:38,555 INFO L471 AbstractCegarLoop]: Abstraction has 54 states and 64 transitions. [2024-11-03 07:30:38,555 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-03 07:30:38,555 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 64 transitions. [2024-11-03 07:30:38,556 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2024-11-03 07:30:38,556 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 07:30:38,556 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-03 07:30:38,560 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 07:30:38,756 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 07:30:38,757 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 07:30:38,757 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 07:30:38,757 INFO L85 PathProgramCache]: Analyzing trace with hash 761216169, now seen corresponding path program 1 times [2024-11-03 07:30:38,758 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 07:30:38,758 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1381643427] [2024-11-03 07:30:38,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 07:30:38,758 INFO L173 SolverBuilder]: Constructing external solver with command: cvc5 --incremental --print-success --lang smt [2024-11-03 07:30:38,758 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 [2024-11-03 07:30:38,760 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 07:30:38,761 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 07:30:38,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 07:30:38,880 WARN L253 TraceCheckSpWp]: Trace formula consists of 169 conjuncts, 95 conjuncts are in the unsatisfiable core [2024-11-03 07:30:38,890 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 07:30:39,019 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-03 07:30:39,026 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2024-11-03 07:30:39,026 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 07:30:39,214 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2024-11-03 07:30:39,214 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 07:30:39,214 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1381643427] [2024-11-03 07:30:39,215 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [1381643427] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-03 07:30:39,215 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-03 07:30:39,215 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 3] imperfect sequences [] total 6 [2024-11-03 07:30:39,215 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1634482211] [2024-11-03 07:30:39,215 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-03 07:30:39,215 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-03 07:30:39,215 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 07:30:39,216 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-03 07:30:39,216 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-03 07:30:39,216 INFO L87 Difference]: Start difference. First operand 54 states and 64 transitions. Second operand has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 6 states have internal predecessors, (44), 1 states have call successors, (8), 1 states have call predecessors, (8), 3 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-03 07:30:39,245 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 07:30:39,246 INFO L93 Difference]: Finished difference Result 74 states and 93 transitions. [2024-11-03 07:30:39,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-03 07:30:39,246 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 6 states have internal predecessors, (44), 1 states have call successors, (8), 1 states have call predecessors, (8), 3 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 72 [2024-11-03 07:30:39,247 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 07:30:39,248 INFO L225 Difference]: With dead ends: 74 [2024-11-03 07:30:39,248 INFO L226 Difference]: Without dead ends: 67 [2024-11-03 07:30:39,248 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 142 GetRequests, 138 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-03 07:30:39,249 INFO L432 NwaCegarLoop]: 61 mSDtfsCounter, 21 mSDsluCounter, 175 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 236 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-03 07:30:39,249 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 236 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-03 07:30:39,249 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2024-11-03 07:30:39,254 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 61. [2024-11-03 07:30:39,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61 states, 50 states have (on average 1.14) internal successors, (57), 50 states have internal predecessors, (57), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-03 07:30:39,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 73 transitions. [2024-11-03 07:30:39,255 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 73 transitions. Word has length 72 [2024-11-03 07:30:39,255 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 07:30:39,255 INFO L471 AbstractCegarLoop]: Abstraction has 61 states and 73 transitions. [2024-11-03 07:30:39,255 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 6 states have internal predecessors, (44), 1 states have call successors, (8), 1 states have call predecessors, (8), 3 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-03 07:30:39,255 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 73 transitions. [2024-11-03 07:30:39,256 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2024-11-03 07:30:39,256 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 07:30:39,256 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-03 07:30:39,259 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 07:30:39,458 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 07:30:39,458 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 07:30:39,459 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 07:30:39,459 INFO L85 PathProgramCache]: Analyzing trace with hash -1352872087, now seen corresponding path program 1 times [2024-11-03 07:30:39,459 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 07:30:39,459 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [382527352] [2024-11-03 07:30:39,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 07:30:39,459 INFO L173 SolverBuilder]: Constructing external solver with command: cvc5 --incremental --print-success --lang smt [2024-11-03 07:30:39,459 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 [2024-11-03 07:30:39,460 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 07:30:39,462 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 07:30:39,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 07:30:39,571 WARN L253 TraceCheckSpWp]: Trace formula consists of 174 conjuncts, 105 conjuncts are in the unsatisfiable core [2024-11-03 07:30:39,580 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 07:30:39,947 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-03 07:30:40,778 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-03 07:30:40,779 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 28 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 55 treesize of output 23 [2024-11-03 07:30:40,992 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2024-11-03 07:30:40,993 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 07:30:41,179 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2024-11-03 07:30:41,179 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 07:30:41,179 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [382527352] [2024-11-03 07:30:41,179 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [382527352] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-03 07:30:41,179 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-03 07:30:41,180 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9, 4] imperfect sequences [] total 9 [2024-11-03 07:30:41,180 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [50713456] [2024-11-03 07:30:41,180 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-03 07:30:41,180 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-03 07:30:41,180 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 07:30:41,182 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-03 07:30:41,182 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-03 07:30:41,183 INFO L87 Difference]: Start difference. First operand 61 states and 73 transitions. Second operand has 9 states, 9 states have (on average 5.222222222222222) internal successors, (47), 9 states have internal predecessors, (47), 1 states have call successors, (8), 1 states have call predecessors, (8), 3 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-03 07:30:41,788 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 07:30:41,788 INFO L93 Difference]: Finished difference Result 86 states and 108 transitions. [2024-11-03 07:30:41,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-03 07:30:41,791 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.222222222222222) internal successors, (47), 9 states have internal predecessors, (47), 1 states have call successors, (8), 1 states have call predecessors, (8), 3 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 73 [2024-11-03 07:30:41,791 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 07:30:41,792 INFO L225 Difference]: With dead ends: 86 [2024-11-03 07:30:41,792 INFO L226 Difference]: Without dead ends: 68 [2024-11-03 07:30:41,792 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 144 GetRequests, 137 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-03 07:30:41,793 INFO L432 NwaCegarLoop]: 57 mSDtfsCounter, 8 mSDsluCounter, 381 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 438 SdHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-03 07:30:41,793 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 438 Invalid, 70 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-03 07:30:41,793 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2024-11-03 07:30:41,799 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 62. [2024-11-03 07:30:41,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62 states, 51 states have (on average 1.0980392156862746) internal successors, (56), 51 states have internal predecessors, (56), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-03 07:30:41,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 72 transitions. [2024-11-03 07:30:41,800 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 72 transitions. Word has length 73 [2024-11-03 07:30:41,800 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 07:30:41,800 INFO L471 AbstractCegarLoop]: Abstraction has 62 states and 72 transitions. [2024-11-03 07:30:41,800 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.222222222222222) internal successors, (47), 9 states have internal predecessors, (47), 1 states have call successors, (8), 1 states have call predecessors, (8), 3 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-03 07:30:41,800 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 72 transitions. [2024-11-03 07:30:41,801 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2024-11-03 07:30:41,801 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 07:30:41,801 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-03 07:30:41,804 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 07:30:42,003 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 07:30:42,003 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 07:30:42,004 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 07:30:42,004 INFO L85 PathProgramCache]: Analyzing trace with hash 208858347, now seen corresponding path program 1 times [2024-11-03 07:30:42,004 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 07:30:42,004 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1873975186] [2024-11-03 07:30:42,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 07:30:42,004 INFO L173 SolverBuilder]: Constructing external solver with command: cvc5 --incremental --print-success --lang smt [2024-11-03 07:30:42,004 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 [2024-11-03 07:30:42,015 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 07:30:42,016 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 07:30:42,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 07:30:42,133 WARN L253 TraceCheckSpWp]: Trace formula consists of 184 conjuncts, 102 conjuncts are in the unsatisfiable core [2024-11-03 07:30:42,140 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 07:30:42,205 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-03 07:30:42,267 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2024-11-03 07:30:42,268 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 07:30:42,514 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2024-11-03 07:30:42,514 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 07:30:42,514 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1873975186] [2024-11-03 07:30:42,514 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [1873975186] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-03 07:30:42,514 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-03 07:30:42,514 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 5] total 11 [2024-11-03 07:30:42,514 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1118809776] [2024-11-03 07:30:42,514 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-03 07:30:42,515 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-03 07:30:42,515 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 07:30:42,515 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-03 07:30:42,516 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2024-11-03 07:30:42,516 INFO L87 Difference]: Start difference. First operand 62 states and 72 transitions. Second operand has 11 states, 11 states have (on average 5.181818181818182) internal successors, (57), 11 states have internal predecessors, (57), 1 states have call successors, (8), 1 states have call predecessors, (8), 3 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-03 07:30:42,679 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 07:30:42,679 INFO L93 Difference]: Finished difference Result 101 states and 125 transitions. [2024-11-03 07:30:42,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-03 07:30:42,679 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 5.181818181818182) internal successors, (57), 11 states have internal predecessors, (57), 1 states have call successors, (8), 1 states have call predecessors, (8), 3 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 83 [2024-11-03 07:30:42,680 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 07:30:42,681 INFO L225 Difference]: With dead ends: 101 [2024-11-03 07:30:42,681 INFO L226 Difference]: Without dead ends: 85 [2024-11-03 07:30:42,681 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 169 GetRequests, 155 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=75, Invalid=165, Unknown=0, NotChecked=0, Total=240 [2024-11-03 07:30:42,682 INFO L432 NwaCegarLoop]: 60 mSDtfsCounter, 39 mSDsluCounter, 389 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 449 SdHoareTripleChecker+Invalid, 69 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-03 07:30:42,682 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 449 Invalid, 69 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-03 07:30:42,682 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2024-11-03 07:30:42,696 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 75. [2024-11-03 07:30:42,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75 states, 64 states have (on average 1.078125) internal successors, (69), 64 states have internal predecessors, (69), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-03 07:30:42,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 85 transitions. [2024-11-03 07:30:42,697 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 85 transitions. Word has length 83 [2024-11-03 07:30:42,697 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 07:30:42,697 INFO L471 AbstractCegarLoop]: Abstraction has 75 states and 85 transitions. [2024-11-03 07:30:42,697 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 5.181818181818182) internal successors, (57), 11 states have internal predecessors, (57), 1 states have call successors, (8), 1 states have call predecessors, (8), 3 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-03 07:30:42,697 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 85 transitions. [2024-11-03 07:30:42,698 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2024-11-03 07:30:42,698 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 07:30:42,698 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-03 07:30:42,703 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 07:30:42,902 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 07:30:42,902 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 07:30:42,902 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 07:30:42,903 INFO L85 PathProgramCache]: Analyzing trace with hash 1097028377, now seen corresponding path program 2 times [2024-11-03 07:30:42,903 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 07:30:42,903 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [880520959] [2024-11-03 07:30:42,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 07:30:42,903 INFO L173 SolverBuilder]: Constructing external solver with command: cvc5 --incremental --print-success --lang smt [2024-11-03 07:30:42,903 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 [2024-11-03 07:30:42,904 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 07:30:42,905 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 07:30:43,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 07:30:43,015 WARN L253 TraceCheckSpWp]: Trace formula consists of 209 conjuncts, 117 conjuncts are in the unsatisfiable core [2024-11-03 07:30:43,021 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 07:30:43,092 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-03 07:30:43,267 INFO L134 CoverageAnalysis]: Checked inductivity of 127 backedges. 33 proven. 22 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2024-11-03 07:30:43,268 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 07:30:43,564 INFO L134 CoverageAnalysis]: Checked inductivity of 127 backedges. 33 proven. 22 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2024-11-03 07:30:43,565 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 07:30:43,565 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [880520959] [2024-11-03 07:30:43,565 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [880520959] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-03 07:30:43,565 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-03 07:30:43,565 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 8] total 16 [2024-11-03 07:30:43,565 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1454117957] [2024-11-03 07:30:43,565 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-03 07:30:43,566 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-03 07:30:43,566 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 07:30:43,566 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-03 07:30:43,567 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=178, Unknown=0, NotChecked=0, Total=240 [2024-11-03 07:30:43,567 INFO L87 Difference]: Start difference. First operand 75 states and 85 transitions. Second operand has 16 states, 16 states have (on average 4.875) internal successors, (78), 16 states have internal predecessors, (78), 1 states have call successors, (8), 1 states have call predecessors, (8), 3 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-03 07:30:43,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 07:30:43,884 INFO L93 Difference]: Finished difference Result 123 states and 147 transitions. [2024-11-03 07:30:43,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-03 07:30:43,885 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 4.875) internal successors, (78), 16 states have internal predecessors, (78), 1 states have call successors, (8), 1 states have call predecessors, (8), 3 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 98 [2024-11-03 07:30:43,885 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 07:30:43,886 INFO L225 Difference]: With dead ends: 123 [2024-11-03 07:30:43,886 INFO L226 Difference]: Without dead ends: 103 [2024-11-03 07:30:43,886 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 201 GetRequests, 180 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 88 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=149, Invalid=357, Unknown=0, NotChecked=0, Total=506 [2024-11-03 07:30:43,887 INFO L432 NwaCegarLoop]: 63 mSDtfsCounter, 49 mSDsluCounter, 523 mSDsCounter, 0 mSdLazyCounter, 130 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 586 SdHoareTripleChecker+Invalid, 139 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 130 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-03 07:30:43,887 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [49 Valid, 586 Invalid, 139 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 130 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-03 07:30:43,887 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103 states. [2024-11-03 07:30:43,901 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103 to 93. [2024-11-03 07:30:43,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 93 states, 82 states have (on average 1.0609756097560976) internal successors, (87), 82 states have internal predecessors, (87), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-03 07:30:43,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 103 transitions. [2024-11-03 07:30:43,904 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 103 transitions. Word has length 98 [2024-11-03 07:30:43,905 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 07:30:43,905 INFO L471 AbstractCegarLoop]: Abstraction has 93 states and 103 transitions. [2024-11-03 07:30:43,905 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 4.875) internal successors, (78), 16 states have internal predecessors, (78), 1 states have call successors, (8), 1 states have call predecessors, (8), 3 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-03 07:30:43,905 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 103 transitions. [2024-11-03 07:30:43,906 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2024-11-03 07:30:43,906 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 07:30:43,906 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-03 07:30:43,912 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (14)] Ended with exit code 0 [2024-11-03 07:30:44,107 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt [2024-11-03 07:30:44,107 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 07:30:44,107 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 07:30:44,108 INFO L85 PathProgramCache]: Analyzing trace with hash 1303713577, now seen corresponding path program 3 times [2024-11-03 07:30:44,108 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 07:30:44,108 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1911752277] [2024-11-03 07:30:44,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 07:30:44,108 INFO L173 SolverBuilder]: Constructing external solver with command: cvc5 --incremental --print-success --lang smt [2024-11-03 07:30:44,108 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 [2024-11-03 07:30:44,110 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-03 07:30:44,111 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (15)] Waiting until timeout for monitored process [2024-11-03 07:30:44,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 07:30:44,255 WARN L253 TraceCheckSpWp]: Trace formula consists of 239 conjuncts, 135 conjuncts are in the unsatisfiable core [2024-11-03 07:30:44,267 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 07:30:44,325 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-03 07:30:44,855 INFO L134 CoverageAnalysis]: Checked inductivity of 292 backedges. 4 proven. 224 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2024-11-03 07:30:44,855 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 07:30:45,234 INFO L134 CoverageAnalysis]: Checked inductivity of 292 backedges. 4 proven. 154 refuted. 0 times theorem prover too weak. 134 trivial. 0 not checked. [2024-11-03 07:30:45,234 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 07:30:45,234 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1911752277] [2024-11-03 07:30:45,234 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [1911752277] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-03 07:30:45,234 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-03 07:30:45,234 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 10] total 28 [2024-11-03 07:30:45,235 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1667735019] [2024-11-03 07:30:45,235 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-03 07:30:45,235 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2024-11-03 07:30:45,235 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 07:30:45,236 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2024-11-03 07:30:45,236 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=140, Invalid=616, Unknown=0, NotChecked=0, Total=756 [2024-11-03 07:30:45,237 INFO L87 Difference]: Start difference. First operand 93 states and 103 transitions. Second operand has 28 states, 28 states have (on average 3.9642857142857144) internal successors, (111), 28 states have internal predecessors, (111), 1 states have call successors, (8), 1 states have call predecessors, (8), 3 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-03 07:30:45,599 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 07:30:45,600 INFO L93 Difference]: Finished difference Result 124 states and 143 transitions. [2024-11-03 07:30:45,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-11-03 07:30:45,600 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 3.9642857142857144) internal successors, (111), 28 states have internal predecessors, (111), 1 states have call successors, (8), 1 states have call predecessors, (8), 3 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 116 [2024-11-03 07:30:45,601 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 07:30:45,602 INFO L225 Difference]: With dead ends: 124 [2024-11-03 07:30:45,602 INFO L226 Difference]: Without dead ends: 110 [2024-11-03 07:30:45,603 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 233 GetRequests, 204 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 231 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=170, Invalid=760, Unknown=0, NotChecked=0, Total=930 [2024-11-03 07:30:45,604 INFO L432 NwaCegarLoop]: 73 mSDtfsCounter, 31 mSDsluCounter, 719 mSDsCounter, 0 mSdLazyCounter, 478 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 792 SdHoareTripleChecker+Invalid, 482 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 478 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-03 07:30:45,604 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 792 Invalid, 482 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 478 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-03 07:30:45,606 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states. [2024-11-03 07:30:45,616 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 96. [2024-11-03 07:30:45,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 96 states, 85 states have (on average 1.0588235294117647) internal successors, (90), 85 states have internal predecessors, (90), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-03 07:30:45,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 106 transitions. [2024-11-03 07:30:45,617 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 106 transitions. Word has length 116 [2024-11-03 07:30:45,618 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 07:30:45,618 INFO L471 AbstractCegarLoop]: Abstraction has 96 states and 106 transitions. [2024-11-03 07:30:45,621 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 3.9642857142857144) internal successors, (111), 28 states have internal predecessors, (111), 1 states have call successors, (8), 1 states have call predecessors, (8), 3 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-03 07:30:45,622 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 106 transitions. [2024-11-03 07:30:45,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2024-11-03 07:30:45,622 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 07:30:45,623 INFO L215 NwaCegarLoop]: trace histogram [13, 13, 13, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-03 07:30:45,626 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (15)] Ended with exit code 0 [2024-11-03 07:30:45,823 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt [2024-11-03 07:30:45,823 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 07:30:45,824 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 07:30:45,824 INFO L85 PathProgramCache]: Analyzing trace with hash 2129542763, now seen corresponding path program 4 times [2024-11-03 07:30:45,824 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 07:30:45,824 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [640888029] [2024-11-03 07:30:45,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 07:30:45,824 INFO L173 SolverBuilder]: Constructing external solver with command: cvc5 --incremental --print-success --lang smt [2024-11-03 07:30:45,825 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 [2024-11-03 07:30:45,827 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-03 07:30:45,828 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (16)] Waiting until timeout for monitored process [2024-11-03 07:30:45,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 07:30:45,961 WARN L253 TraceCheckSpWp]: Trace formula consists of 244 conjuncts, 138 conjuncts are in the unsatisfiable core [2024-11-03 07:30:45,968 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 07:30:46,030 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-03 07:30:46,555 INFO L134 CoverageAnalysis]: Checked inductivity of 330 backedges. 0 proven. 266 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2024-11-03 07:30:46,555 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 07:30:46,817 INFO L134 CoverageAnalysis]: Checked inductivity of 330 backedges. 0 proven. 145 refuted. 0 times theorem prover too weak. 185 trivial. 0 not checked. [2024-11-03 07:30:46,817 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 07:30:46,817 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [640888029] [2024-11-03 07:30:46,817 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [640888029] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-03 07:30:46,817 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-03 07:30:46,817 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 5] total 25 [2024-11-03 07:30:46,818 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1751832414] [2024-11-03 07:30:46,818 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-03 07:30:46,818 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2024-11-03 07:30:46,818 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 07:30:46,819 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2024-11-03 07:30:46,822 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=123, Invalid=477, Unknown=0, NotChecked=0, Total=600 [2024-11-03 07:30:46,822 INFO L87 Difference]: Start difference. First operand 96 states and 106 transitions. Second operand has 25 states, 25 states have (on average 4.2) internal successors, (105), 25 states have internal predecessors, (105), 1 states have call successors, (8), 1 states have call predecessors, (8), 3 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-03 07:30:47,197 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 07:30:47,197 INFO L93 Difference]: Finished difference Result 139 states and 162 transitions. [2024-11-03 07:30:47,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-11-03 07:30:47,198 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 4.2) internal successors, (105), 25 states have internal predecessors, (105), 1 states have call successors, (8), 1 states have call predecessors, (8), 3 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 119 [2024-11-03 07:30:47,198 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 07:30:47,199 INFO L225 Difference]: With dead ends: 139 [2024-11-03 07:30:47,199 INFO L226 Difference]: Without dead ends: 132 [2024-11-03 07:30:47,200 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 238 GetRequests, 213 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 227 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=169, Invalid=533, Unknown=0, NotChecked=0, Total=702 [2024-11-03 07:30:47,200 INFO L432 NwaCegarLoop]: 77 mSDtfsCounter, 49 mSDsluCounter, 531 mSDsCounter, 0 mSdLazyCounter, 526 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 608 SdHoareTripleChecker+Invalid, 528 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 526 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-03 07:30:47,200 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [49 Valid, 608 Invalid, 528 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 526 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-03 07:30:47,201 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132 states. [2024-11-03 07:30:47,216 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132 to 124. [2024-11-03 07:30:47,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 124 states, 113 states have (on average 1.079646017699115) internal successors, (122), 113 states have internal predecessors, (122), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-03 07:30:47,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 138 transitions. [2024-11-03 07:30:47,218 INFO L78 Accepts]: Start accepts. Automaton has 124 states and 138 transitions. Word has length 119 [2024-11-03 07:30:47,218 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 07:30:47,218 INFO L471 AbstractCegarLoop]: Abstraction has 124 states and 138 transitions. [2024-11-03 07:30:47,218 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 4.2) internal successors, (105), 25 states have internal predecessors, (105), 1 states have call successors, (8), 1 states have call predecessors, (8), 3 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-03 07:30:47,218 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 138 transitions. [2024-11-03 07:30:47,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2024-11-03 07:30:47,219 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 07:30:47,220 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 6, 6, 6, 6, 6, 6, 6, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-03 07:30:47,223 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (16)] Ended with exit code 0 [2024-11-03 07:30:47,420 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt [2024-11-03 07:30:47,420 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 07:30:47,421 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 07:30:47,421 INFO L85 PathProgramCache]: Analyzing trace with hash -1991307029, now seen corresponding path program 5 times [2024-11-03 07:30:47,421 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 07:30:47,421 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [324251117] [2024-11-03 07:30:47,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 07:30:47,421 INFO L173 SolverBuilder]: Constructing external solver with command: cvc5 --incremental --print-success --lang smt [2024-11-03 07:30:47,421 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 [2024-11-03 07:30:47,424 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-03 07:30:47,425 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (17)] Waiting until timeout for monitored process [2024-11-03 07:30:47,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 07:30:47,563 WARN L253 TraceCheckSpWp]: Trace formula consists of 284 conjuncts, 158 conjuncts are in the unsatisfiable core [2024-11-03 07:30:47,570 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 07:30:47,629 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-03 07:30:48,091 INFO L134 CoverageAnalysis]: Checked inductivity of 640 backedges. 214 proven. 323 refuted. 0 times theorem prover too weak. 103 trivial. 0 not checked. [2024-11-03 07:30:48,092 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 07:30:48,359 INFO L134 CoverageAnalysis]: Checked inductivity of 640 backedges. 214 proven. 202 refuted. 0 times theorem prover too weak. 224 trivial. 0 not checked. [2024-11-03 07:30:48,360 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 07:30:48,360 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [324251117] [2024-11-03 07:30:48,360 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [324251117] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-03 07:30:48,360 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-03 07:30:48,360 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 7] total 27 [2024-11-03 07:30:48,360 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [494145831] [2024-11-03 07:30:48,360 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-03 07:30:48,361 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2024-11-03 07:30:48,361 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 07:30:48,362 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2024-11-03 07:30:48,362 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=148, Invalid=554, Unknown=0, NotChecked=0, Total=702 [2024-11-03 07:30:48,362 INFO L87 Difference]: Start difference. First operand 124 states and 138 transitions. Second operand has 27 states, 27 states have (on average 4.481481481481482) internal successors, (121), 27 states have internal predecessors, (121), 1 states have call successors, (8), 1 states have call predecessors, (8), 3 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-03 07:30:48,911 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 07:30:48,911 INFO L93 Difference]: Finished difference Result 187 states and 217 transitions. [2024-11-03 07:30:48,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2024-11-03 07:30:48,912 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 27 states have (on average 4.481481481481482) internal successors, (121), 27 states have internal predecessors, (121), 1 states have call successors, (8), 1 states have call predecessors, (8), 3 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 147 [2024-11-03 07:30:48,912 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 07:30:48,913 INFO L225 Difference]: With dead ends: 187 [2024-11-03 07:30:48,913 INFO L226 Difference]: Without dead ends: 156 [2024-11-03 07:30:48,914 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 304 GetRequests, 267 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 474 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=399, Invalid=1083, Unknown=0, NotChecked=0, Total=1482 [2024-11-03 07:30:48,914 INFO L432 NwaCegarLoop]: 77 mSDtfsCounter, 68 mSDsluCounter, 853 mSDsCounter, 0 mSdLazyCounter, 559 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 930 SdHoareTripleChecker+Invalid, 572 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 559 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-03 07:30:48,915 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [68 Valid, 930 Invalid, 572 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 559 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-03 07:30:48,915 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 156 states. [2024-11-03 07:30:48,926 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 156 to 142. [2024-11-03 07:30:48,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 142 states, 131 states have (on average 1.0687022900763359) internal successors, (140), 131 states have internal predecessors, (140), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-03 07:30:48,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 142 states and 156 transitions. [2024-11-03 07:30:48,928 INFO L78 Accepts]: Start accepts. Automaton has 142 states and 156 transitions. Word has length 147 [2024-11-03 07:30:48,928 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 07:30:48,928 INFO L471 AbstractCegarLoop]: Abstraction has 142 states and 156 transitions. [2024-11-03 07:30:48,928 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 27 states have (on average 4.481481481481482) internal successors, (121), 27 states have internal predecessors, (121), 1 states have call successors, (8), 1 states have call predecessors, (8), 3 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-03 07:30:48,928 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 156 transitions. [2024-11-03 07:30:48,930 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2024-11-03 07:30:48,930 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 07:30:48,930 INFO L215 NwaCegarLoop]: trace histogram [23, 23, 23, 6, 6, 6, 6, 6, 6, 6, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-03 07:30:48,933 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (17)] Ended with exit code 0 [2024-11-03 07:30:49,132 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt [2024-11-03 07:30:49,132 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 07:30:49,132 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 07:30:49,133 INFO L85 PathProgramCache]: Analyzing trace with hash -1796964085, now seen corresponding path program 6 times [2024-11-03 07:30:49,133 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 07:30:49,133 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1725700691] [2024-11-03 07:30:49,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 07:30:49,133 INFO L173 SolverBuilder]: Constructing external solver with command: cvc5 --incremental --print-success --lang smt [2024-11-03 07:30:49,133 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 [2024-11-03 07:30:49,134 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-03 07:30:49,135 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (18)] Waiting until timeout for monitored process [2024-11-03 07:30:49,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 07:30:49,294 WARN L253 TraceCheckSpWp]: Trace formula consists of 314 conjuncts, 176 conjuncts are in the unsatisfiable core [2024-11-03 07:30:49,302 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 07:30:49,357 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-03 07:30:49,954 INFO L134 CoverageAnalysis]: Checked inductivity of 1027 backedges. 412 proven. 467 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2024-11-03 07:30:49,954 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 07:30:50,332 INFO L134 CoverageAnalysis]: Checked inductivity of 1027 backedges. 412 proven. 346 refuted. 0 times theorem prover too weak. 269 trivial. 0 not checked. [2024-11-03 07:30:50,332 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 07:30:50,333 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1725700691] [2024-11-03 07:30:50,333 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [1725700691] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-03 07:30:50,333 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-03 07:30:50,333 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 10] total 33 [2024-11-03 07:30:50,333 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1873757514] [2024-11-03 07:30:50,333 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-03 07:30:50,333 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2024-11-03 07:30:50,334 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 07:30:50,334 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2024-11-03 07:30:50,335 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=185, Invalid=871, Unknown=0, NotChecked=0, Total=1056 [2024-11-03 07:30:50,335 INFO L87 Difference]: Start difference. First operand 142 states and 156 transitions. Second operand has 33 states, 33 states have (on average 4.212121212121212) internal successors, (139), 33 states have internal predecessors, (139), 1 states have call successors, (8), 1 states have call predecessors, (8), 3 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-03 07:30:50,825 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 07:30:50,825 INFO L93 Difference]: Finished difference Result 196 states and 220 transitions. [2024-11-03 07:30:50,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2024-11-03 07:30:50,826 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 33 states have (on average 4.212121212121212) internal successors, (139), 33 states have internal predecessors, (139), 1 states have call successors, (8), 1 states have call predecessors, (8), 3 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 165 [2024-11-03 07:30:50,826 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 07:30:50,827 INFO L225 Difference]: With dead ends: 196 [2024-11-03 07:30:50,827 INFO L226 Difference]: Without dead ends: 156 [2024-11-03 07:30:50,828 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 331 GetRequests, 297 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 371 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=221, Invalid=1039, Unknown=0, NotChecked=0, Total=1260 [2024-11-03 07:30:50,828 INFO L432 NwaCegarLoop]: 80 mSDtfsCounter, 19 mSDsluCounter, 1325 mSDsCounter, 0 mSdLazyCounter, 865 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 1405 SdHoareTripleChecker+Invalid, 870 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 865 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-03 07:30:50,829 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 1405 Invalid, 870 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 865 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-03 07:30:50,831 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 156 states. [2024-11-03 07:30:50,844 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 156 to 145. [2024-11-03 07:30:50,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 145 states, 134 states have (on average 1.0671641791044777) internal successors, (143), 134 states have internal predecessors, (143), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-03 07:30:50,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145 states to 145 states and 159 transitions. [2024-11-03 07:30:50,846 INFO L78 Accepts]: Start accepts. Automaton has 145 states and 159 transitions. Word has length 165 [2024-11-03 07:30:50,846 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 07:30:50,847 INFO L471 AbstractCegarLoop]: Abstraction has 145 states and 159 transitions. [2024-11-03 07:30:50,847 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 33 states have (on average 4.212121212121212) internal successors, (139), 33 states have internal predecessors, (139), 1 states have call successors, (8), 1 states have call predecessors, (8), 3 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-03 07:30:50,847 INFO L276 IsEmpty]: Start isEmpty. Operand 145 states and 159 transitions. [2024-11-03 07:30:50,848 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2024-11-03 07:30:50,848 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 07:30:50,848 INFO L215 NwaCegarLoop]: trace histogram [24, 24, 24, 6, 6, 6, 6, 6, 6, 6, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-03 07:30:50,851 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (18)] Ended with exit code 0 [2024-11-03 07:30:51,048 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt [2024-11-03 07:30:51,049 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 07:30:51,049 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 07:30:51,049 INFO L85 PathProgramCache]: Analyzing trace with hash 1545669593, now seen corresponding path program 7 times [2024-11-03 07:30:51,049 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 07:30:51,049 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1729125861] [2024-11-03 07:30:51,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 07:30:51,050 INFO L173 SolverBuilder]: Constructing external solver with command: cvc5 --incremental --print-success --lang smt [2024-11-03 07:30:51,050 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 [2024-11-03 07:30:51,052 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-03 07:30:51,054 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (19)] Waiting until timeout for monitored process [2024-11-03 07:30:51,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 07:30:51,230 WARN L253 TraceCheckSpWp]: Trace formula consists of 319 conjuncts, 179 conjuncts are in the unsatisfiable core [2024-11-03 07:30:51,239 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 07:30:51,280 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-03 07:30:52,039 INFO L134 CoverageAnalysis]: Checked inductivity of 1102 backedges. 334 proven. 668 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2024-11-03 07:30:52,039 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 07:30:52,386 INFO L134 CoverageAnalysis]: Checked inductivity of 1102 backedges. 334 proven. 512 refuted. 0 times theorem prover too weak. 256 trivial. 0 not checked. [2024-11-03 07:30:52,386 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 07:30:52,386 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1729125861] [2024-11-03 07:30:52,386 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [1729125861] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-03 07:30:52,387 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-03 07:30:52,387 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [29, 9] total 36 [2024-11-03 07:30:52,387 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [621175415] [2024-11-03 07:30:52,387 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-03 07:30:52,387 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2024-11-03 07:30:52,387 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 07:30:52,388 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2024-11-03 07:30:52,389 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=229, Invalid=1031, Unknown=0, NotChecked=0, Total=1260 [2024-11-03 07:30:52,389 INFO L87 Difference]: Start difference. First operand 145 states and 159 transitions. Second operand has 36 states, 36 states have (on average 4.25) internal successors, (153), 36 states have internal predecessors, (153), 1 states have call successors, (8), 1 states have call predecessors, (8), 3 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-03 07:30:53,021 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 07:30:53,021 INFO L93 Difference]: Finished difference Result 195 states and 220 transitions. [2024-11-03 07:30:53,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2024-11-03 07:30:53,022 INFO L78 Accepts]: Start accepts. Automaton has has 36 states, 36 states have (on average 4.25) internal successors, (153), 36 states have internal predecessors, (153), 1 states have call successors, (8), 1 states have call predecessors, (8), 3 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 168 [2024-11-03 07:30:53,022 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 07:30:53,023 INFO L225 Difference]: With dead ends: 195 [2024-11-03 07:30:53,023 INFO L226 Difference]: Without dead ends: 165 [2024-11-03 07:30:53,023 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 341 GetRequests, 300 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 580 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=354, Invalid=1452, Unknown=0, NotChecked=0, Total=1806 [2024-11-03 07:30:53,024 INFO L432 NwaCegarLoop]: 85 mSDtfsCounter, 66 mSDsluCounter, 944 mSDsCounter, 0 mSdLazyCounter, 898 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 1029 SdHoareTripleChecker+Invalid, 907 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 898 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-03 07:30:53,024 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [66 Valid, 1029 Invalid, 907 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 898 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-03 07:30:53,025 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 165 states. [2024-11-03 07:30:53,040 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 165 to 154. [2024-11-03 07:30:53,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 154 states, 143 states have (on average 1.062937062937063) internal successors, (152), 143 states have internal predecessors, (152), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-03 07:30:53,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 168 transitions. [2024-11-03 07:30:53,042 INFO L78 Accepts]: Start accepts. Automaton has 154 states and 168 transitions. Word has length 168 [2024-11-03 07:30:53,042 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 07:30:53,042 INFO L471 AbstractCegarLoop]: Abstraction has 154 states and 168 transitions. [2024-11-03 07:30:53,043 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 36 states have (on average 4.25) internal successors, (153), 36 states have internal predecessors, (153), 1 states have call successors, (8), 1 states have call predecessors, (8), 3 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-03 07:30:53,043 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 168 transitions. [2024-11-03 07:30:53,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2024-11-03 07:30:53,044 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 07:30:53,044 INFO L215 NwaCegarLoop]: trace histogram [27, 27, 27, 6, 6, 6, 6, 6, 6, 6, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-03 07:30:53,048 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (19)] Ended with exit code 0 [2024-11-03 07:30:53,244 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt [2024-11-03 07:30:53,245 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 07:30:53,245 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 07:30:53,245 INFO L85 PathProgramCache]: Analyzing trace with hash -1416794837, now seen corresponding path program 8 times [2024-11-03 07:30:53,245 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 07:30:53,245 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [348035199] [2024-11-03 07:30:53,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 07:30:53,245 INFO L173 SolverBuilder]: Constructing external solver with command: cvc5 --incremental --print-success --lang smt [2024-11-03 07:30:53,245 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 [2024-11-03 07:30:53,246 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-03 07:30:53,248 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (20)] Waiting until timeout for monitored process [2024-11-03 07:30:53,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 07:30:53,419 WARN L253 TraceCheckSpWp]: Trace formula consists of 334 conjuncts, 188 conjuncts are in the unsatisfiable core [2024-11-03 07:30:53,429 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 07:30:53,481 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-03 07:30:54,589 INFO L134 CoverageAnalysis]: Checked inductivity of 1345 backedges. 0 proven. 1281 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2024-11-03 07:30:54,589 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 07:30:54,984 INFO L134 CoverageAnalysis]: Checked inductivity of 1345 backedges. 0 proven. 1086 refuted. 0 times theorem prover too weak. 259 trivial. 0 not checked. [2024-11-03 07:30:54,984 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 07:30:54,984 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [348035199] [2024-11-03 07:30:54,984 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [348035199] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-03 07:30:54,984 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-03 07:30:54,984 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [40, 9] total 47 [2024-11-03 07:30:54,985 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [753082617] [2024-11-03 07:30:54,985 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-03 07:30:54,985 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 47 states [2024-11-03 07:30:54,985 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 07:30:54,986 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 47 interpolants. [2024-11-03 07:30:54,987 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=294, Invalid=1868, Unknown=0, NotChecked=0, Total=2162 [2024-11-03 07:30:54,987 INFO L87 Difference]: Start difference. First operand 154 states and 168 transitions. Second operand has 47 states, 47 states have (on average 4.0638297872340425) internal successors, (191), 47 states have internal predecessors, (191), 1 states have call successors, (8), 1 states have call predecessors, (8), 3 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-03 07:30:55,910 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 07:30:55,910 INFO L93 Difference]: Finished difference Result 190 states and 212 transitions. [2024-11-03 07:30:55,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2024-11-03 07:30:55,911 INFO L78 Accepts]: Start accepts. Automaton has has 47 states, 47 states have (on average 4.0638297872340425) internal successors, (191), 47 states have internal predecessors, (191), 1 states have call successors, (8), 1 states have call predecessors, (8), 3 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 177 [2024-11-03 07:30:55,911 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 07:30:55,912 INFO L225 Difference]: With dead ends: 190 [2024-11-03 07:30:55,912 INFO L226 Difference]: Without dead ends: 183 [2024-11-03 07:30:55,913 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 352 GetRequests, 307 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 824 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=294, Invalid=1868, Unknown=0, NotChecked=0, Total=2162 [2024-11-03 07:30:55,913 INFO L432 NwaCegarLoop]: 99 mSDtfsCounter, 57 mSDsluCounter, 1211 mSDsCounter, 0 mSdLazyCounter, 1691 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 1310 SdHoareTripleChecker+Invalid, 1692 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1691 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-03 07:30:55,914 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [57 Valid, 1310 Invalid, 1692 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1691 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-03 07:30:55,914 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 183 states. [2024-11-03 07:30:55,926 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 183 to 161. [2024-11-03 07:30:55,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 161 states, 150 states have (on average 1.0666666666666667) internal successors, (160), 150 states have internal predecessors, (160), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-03 07:30:55,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 161 states to 161 states and 176 transitions. [2024-11-03 07:30:55,927 INFO L78 Accepts]: Start accepts. Automaton has 161 states and 176 transitions. Word has length 177 [2024-11-03 07:30:55,928 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 07:30:55,928 INFO L471 AbstractCegarLoop]: Abstraction has 161 states and 176 transitions. [2024-11-03 07:30:55,928 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 47 states, 47 states have (on average 4.0638297872340425) internal successors, (191), 47 states have internal predecessors, (191), 1 states have call successors, (8), 1 states have call predecessors, (8), 3 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-03 07:30:55,928 INFO L276 IsEmpty]: Start isEmpty. Operand 161 states and 176 transitions. [2024-11-03 07:30:55,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2024-11-03 07:30:55,929 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 07:30:55,929 INFO L215 NwaCegarLoop]: trace histogram [28, 28, 28, 7, 7, 7, 7, 6, 6, 6, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-03 07:30:55,933 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (20)] Ended with exit code 0 [2024-11-03 07:30:56,131 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt [2024-11-03 07:30:56,132 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 07:30:56,132 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 07:30:56,132 INFO L85 PathProgramCache]: Analyzing trace with hash 773529361, now seen corresponding path program 9 times [2024-11-03 07:30:56,132 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 07:30:56,132 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [490766427] [2024-11-03 07:30:56,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 07:30:56,133 INFO L173 SolverBuilder]: Constructing external solver with command: cvc5 --incremental --print-success --lang smt [2024-11-03 07:30:56,133 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 [2024-11-03 07:30:56,134 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-03 07:30:56,135 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (21)] Waiting until timeout for monitored process [2024-11-03 07:30:56,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-03 07:30:56,346 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-03 07:30:56,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-03 07:30:56,630 INFO L130 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2024-11-03 07:30:56,630 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-03 07:30:56,631 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-03 07:30:56,638 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (21)] Ended with exit code 0 [2024-11-03 07:30:56,833 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt [2024-11-03 07:30:56,835 INFO L407 BasicCegarLoop]: Path program histogram: [9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-03 07:30:56,916 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-03 07:30:56,919 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.11 07:30:56 BoogieIcfgContainer [2024-11-03 07:30:56,919 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-03 07:30:56,919 INFO L158 Benchmark]: Toolchain (without parser) took 23075.19ms. Allocated memory is still 360.7MB. Free memory was 307.8MB in the beginning and 239.7MB in the end (delta: 68.1MB). Peak memory consumption was 69.3MB. Max. memory is 8.0GB. [2024-11-03 07:30:56,920 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 188.7MB. Free memory is still 142.2MB. There was no memory consumed. Max. memory is 8.0GB. [2024-11-03 07:30:56,920 INFO L158 Benchmark]: CACSL2BoogieTranslator took 308.80ms. Allocated memory is still 360.7MB. Free memory was 307.8MB in the beginning and 293.8MB in the end (delta: 14.0MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. [2024-11-03 07:30:56,920 INFO L158 Benchmark]: Boogie Procedure Inliner took 46.45ms. Allocated memory is still 360.7MB. Free memory was 293.8MB in the beginning and 291.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2024-11-03 07:30:56,920 INFO L158 Benchmark]: Boogie Preprocessor took 64.94ms. Allocated memory is still 360.7MB. Free memory was 291.7MB in the beginning and 288.9MB in the end (delta: 2.8MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2024-11-03 07:30:56,920 INFO L158 Benchmark]: RCFGBuilder took 498.32ms. Allocated memory is still 360.7MB. Free memory was 288.9MB in the beginning and 326.7MB in the end (delta: -37.8MB). Peak memory consumption was 22.6MB. Max. memory is 8.0GB. [2024-11-03 07:30:56,921 INFO L158 Benchmark]: TraceAbstraction took 22149.59ms. Allocated memory is still 360.7MB. Free memory was 325.7MB in the beginning and 239.7MB in the end (delta: 86.0MB). Peak memory consumption was 86.5MB. Max. memory is 8.0GB. [2024-11-03 07:30:56,922 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 188.7MB. Free memory is still 142.2MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 308.80ms. Allocated memory is still 360.7MB. Free memory was 307.8MB in the beginning and 293.8MB in the end (delta: 14.0MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 46.45ms. Allocated memory is still 360.7MB. Free memory was 293.8MB in the beginning and 291.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 64.94ms. Allocated memory is still 360.7MB. Free memory was 291.7MB in the beginning and 288.9MB in the end (delta: 2.8MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * RCFGBuilder took 498.32ms. Allocated memory is still 360.7MB. Free memory was 288.9MB in the beginning and 326.7MB in the end (delta: -37.8MB). Peak memory consumption was 22.6MB. Max. memory is 8.0GB. * TraceAbstraction took 22149.59ms. Allocated memory is still 360.7MB. Free memory was 325.7MB in the beginning and 239.7MB in the end (delta: 86.0MB). Peak memory consumption was 86.5MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 20]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L58] int s, e, n, d, m, o, r, y; [L59] s = __VERIFIER_nondet_int() [L60] e = __VERIFIER_nondet_int() [L61] n = __VERIFIER_nondet_int() [L62] d = __VERIFIER_nondet_int() [L63] m = __VERIFIER_nondet_int() [L64] o = __VERIFIER_nondet_int() [L65] r = __VERIFIER_nondet_int() [L66] y = __VERIFIER_nondet_int() [L67] CALL, EXPR solve(s, e, n, d, m, o, r, y) [L46] CALL, EXPR check_domain_1(S) VAL [\old(x)=9] [L32] COND TRUE x >= 1 && x <= 9 [L32] return 1; VAL [\old(x)=9, \result=1] [L46] RET, EXPR check_domain_1(S) VAL [D=7, E=5, M=1, N=6, O=0, R=8, S=9, Y=2] [L46] EXPR check_domain_1(S) && check_domain_0(E) VAL [D=7, E=5, M=1, N=6, O=0, R=8, S=9, Y=2] [L46] CALL, EXPR check_domain_0(E) VAL [\old(x)=5] [L28] COND TRUE x >= 0 && x <= 9 [L28] return 1; VAL [\old(x)=5, \result=1] [L46] RET, EXPR check_domain_0(E) VAL [D=7, E=5, M=1, N=6, O=0, R=8, S=9, Y=2] [L46] EXPR check_domain_1(S) && check_domain_0(E) VAL [D=7, E=5, M=1, N=6, O=0, R=8, S=9, Y=2] [L46] EXPR check_domain_1(S) && check_domain_0(E) && check_domain_0(N) VAL [D=7, E=5, M=1, N=6, O=0, R=8, S=9, Y=2] [L46] CALL, EXPR check_domain_0(N) VAL [\old(x)=6] [L28] COND TRUE x >= 0 && x <= 9 [L28] return 1; VAL [\old(x)=6, \result=1] [L46] RET, EXPR check_domain_0(N) VAL [D=7, E=5, M=1, N=6, O=0, R=8, S=9, Y=2] [L46] EXPR check_domain_1(S) && check_domain_0(E) && check_domain_0(N) VAL [D=7, E=5, M=1, N=6, O=0, R=8, S=9, Y=2] [L46-L47] EXPR check_domain_1(S) && check_domain_0(E) && check_domain_0(N) && check_domain_0(D) VAL [D=7, E=5, M=1, N=6, O=0, R=8, S=9, Y=2] [L47] CALL, EXPR check_domain_0(D) VAL [\old(x)=7] [L28] COND TRUE x >= 0 && x <= 9 [L28] return 1; VAL [\old(x)=7, \result=1] [L47] RET, EXPR check_domain_0(D) VAL [D=7, E=5, M=1, N=6, O=0, R=8, S=9, Y=2] [L46-L47] EXPR check_domain_1(S) && check_domain_0(E) && check_domain_0(N) && check_domain_0(D) VAL [D=7, E=5, M=1, N=6, O=0, R=8, S=9, Y=2] [L46-L47] EXPR check_domain_1(S) && check_domain_0(E) && check_domain_0(N) && check_domain_0(D) && check_domain_1(M) VAL [D=7, E=5, M=1, N=6, O=0, R=8, S=9, Y=2] [L47] CALL, EXPR check_domain_1(M) VAL [\old(x)=1] [L32] COND TRUE x >= 1 && x <= 9 [L32] return 1; VAL [\old(x)=1, \result=1] [L47] RET, EXPR check_domain_1(M) VAL [D=7, E=5, M=1, N=6, O=0, R=8, S=9, Y=2] [L46-L47] EXPR check_domain_1(S) && check_domain_0(E) && check_domain_0(N) && check_domain_0(D) && check_domain_1(M) VAL [D=7, E=5, M=1, N=6, O=0, R=8, S=9, Y=2] [L46-L47] EXPR check_domain_1(S) && check_domain_0(E) && check_domain_0(N) && check_domain_0(D) && check_domain_1(M) && check_domain_0(O) VAL [D=7, E=5, M=1, N=6, O=0, R=8, S=9, Y=2] [L47] CALL, EXPR check_domain_0(O) VAL [\old(x)=0] [L28] COND TRUE x >= 0 && x <= 9 [L28] return 1; VAL [\old(x)=0, \result=1] [L47] RET, EXPR check_domain_0(O) VAL [D=7, E=5, M=1, N=6, O=0, R=8, S=9, Y=2] [L46-L47] EXPR check_domain_1(S) && check_domain_0(E) && check_domain_0(N) && check_domain_0(D) && check_domain_1(M) && check_domain_0(O) VAL [D=7, E=5, M=1, N=6, O=0, R=8, S=9, Y=2] [L46-L48] EXPR check_domain_1(S) && check_domain_0(E) && check_domain_0(N) && check_domain_0(D) && check_domain_1(M) && check_domain_0(O) && check_domain_0(R) VAL [D=7, E=5, M=1, N=6, O=0, R=8, S=9, Y=2] [L48] CALL, EXPR check_domain_0(R) VAL [\old(x)=8] [L28] COND TRUE x >= 0 && x <= 9 [L28] return 1; VAL [\old(x)=8, \result=1] [L48] RET, EXPR check_domain_0(R) VAL [D=7, E=5, M=1, N=6, O=0, R=8, S=9, Y=2] [L46-L48] EXPR check_domain_1(S) && check_domain_0(E) && check_domain_0(N) && check_domain_0(D) && check_domain_1(M) && check_domain_0(O) && check_domain_0(R) VAL [D=7, E=5, M=1, N=6, O=0, R=8, S=9, Y=2] [L46-L48] EXPR check_domain_1(S) && check_domain_0(E) && check_domain_0(N) && check_domain_0(D) && check_domain_1(M) && check_domain_0(O) && check_domain_0(R) && check_domain_0(Y) VAL [D=7, E=5, M=1, N=6, O=0, R=8, S=9, Y=2] [L48] CALL, EXPR check_domain_0(Y) VAL [\old(x)=2] [L28] COND TRUE x >= 0 && x <= 9 [L28] return 1; VAL [\old(x)=2, \result=1] [L48] RET, EXPR check_domain_0(Y) VAL [D=7, E=5, M=1, N=6, O=0, R=8, S=9, Y=2] [L46-L48] EXPR check_domain_1(S) && check_domain_0(E) && check_domain_0(N) && check_domain_0(D) && check_domain_1(M) && check_domain_0(O) && check_domain_0(R) && check_domain_0(Y) VAL [D=7, E=5, M=1, N=6, O=0, R=8, S=9, Y=2] [L46-L51] check_domain_1(S) && check_domain_0(E) && check_domain_0(N) && check_domain_0(D) && check_domain_1(M) && check_domain_0(O) && check_domain_0(R) && check_domain_0(Y) && (1000 * S + 100 * E + 10 * N + D + 1000 * M + 100 * O + 10 * R + E == 10000 * M + 1000 * O + 100 * N + 10 * E + Y) && check_diff(S, E, N, D, M, O, R, Y) VAL [D=7, E=5, M=1, N=6, O=0, R=8, S=9, Y=2] [L46-L51] check_domain_1(S) && check_domain_0(E) && check_domain_0(N) && check_domain_0(D) && check_domain_1(M) && check_domain_0(O) && check_domain_0(R) && check_domain_0(Y) && (1000 * S + 100 * E + 10 * N + D + 1000 * M + 100 * O + 10 * R + E == 10000 * M + 1000 * O + 100 * N + 10 * E + Y) && check_diff(S, E, N, D, M, O, R, Y) [L51] CALL, EXPR check_diff(S, E, N, D, M, O, R, Y) [L37] int d[8] = {S, E, N, D, M, O, R, Y}; [L37] int d[8] = {S, E, N, D, M, O, R, Y}; [L37] int d[8] = {S, E, N, D, M, O, R, Y}; [L37] int d[8] = {S, E, N, D, M, O, R, Y}; [L37] int d[8] = {S, E, N, D, M, O, R, Y}; [L37] int d[8] = {S, E, N, D, M, O, R, Y}; [L37] int d[8] = {S, E, N, D, M, O, R, Y}; [L37] int d[8] = {S, E, N, D, M, O, R, Y}; [L37] int d[8] = {S, E, N, D, M, O, R, Y}; [L38] int i = 0; VAL [d={-1:0}, i=0] [L38] COND TRUE i < 7 [L39] int j = i + 1; VAL [d={-1:0}, i=0, j=1] [L39] COND TRUE j < 8 [L40] EXPR d[i] [L40] EXPR d[j] [L40] COND FALSE !(d[i] == d[j]) [L39] j++ VAL [d={-1:0}, i=0, j=2] [L39] COND TRUE j < 8 [L40] EXPR d[i] [L40] EXPR d[j] [L40] COND FALSE !(d[i] == d[j]) [L39] j++ VAL [d={-1:0}, i=0, j=3] [L39] COND TRUE j < 8 [L40] EXPR d[i] [L40] EXPR d[j] [L40] COND FALSE !(d[i] == d[j]) [L39] j++ VAL [d={-1:0}, i=0, j=4] [L39] COND TRUE j < 8 [L40] EXPR d[i] [L40] EXPR d[j] [L40] COND FALSE !(d[i] == d[j]) [L39] j++ VAL [d={-1:0}, i=0, j=5] [L39] COND TRUE j < 8 [L40] EXPR d[i] [L40] EXPR d[j] [L40] COND FALSE !(d[i] == d[j]) [L39] j++ VAL [d={-1:0}, i=0, j=6] [L39] COND TRUE j < 8 [L40] EXPR d[i] [L40] EXPR d[j] [L40] COND FALSE !(d[i] == d[j]) [L39] j++ VAL [d={-1:0}, i=0, j=7] [L39] COND TRUE j < 8 [L40] EXPR d[i] [L40] EXPR d[j] [L40] COND FALSE !(d[i] == d[j]) [L39] j++ VAL [d={-1:0}, i=0, j=8] [L39] COND FALSE !(j < 8) VAL [d={-1:0}, i=0] [L38] i++ VAL [d={-1:0}, i=1] [L38] COND TRUE i < 7 [L39] int j = i + 1; VAL [d={-1:0}, i=1, j=2] [L39] COND TRUE j < 8 [L40] EXPR d[i] [L40] EXPR d[j] [L40] COND FALSE !(d[i] == d[j]) [L39] j++ VAL [d={-1:0}, i=1, j=3] [L39] COND TRUE j < 8 [L40] EXPR d[i] [L40] EXPR d[j] [L40] COND FALSE !(d[i] == d[j]) [L39] j++ VAL [d={-1:0}, i=1, j=4] [L39] COND TRUE j < 8 [L40] EXPR d[i] [L40] EXPR d[j] [L40] COND FALSE !(d[i] == d[j]) [L39] j++ VAL [d={-1:0}, i=1, j=5] [L39] COND TRUE j < 8 [L40] EXPR d[i] [L40] EXPR d[j] [L40] COND FALSE !(d[i] == d[j]) [L39] j++ VAL [d={-1:0}, i=1, j=6] [L39] COND TRUE j < 8 [L40] EXPR d[i] [L40] EXPR d[j] [L40] COND FALSE !(d[i] == d[j]) [L39] j++ VAL [d={-1:0}, i=1, j=7] [L39] COND TRUE j < 8 [L40] EXPR d[i] [L40] EXPR d[j] [L40] COND FALSE !(d[i] == d[j]) [L39] j++ VAL [d={-1:0}, i=1, j=8] [L39] COND FALSE !(j < 8) VAL [d={-1:0}, i=1] [L38] i++ VAL [d={-1:0}, i=2] [L38] COND TRUE i < 7 [L39] int j = i + 1; VAL [d={-1:0}, i=2, j=3] [L39] COND TRUE j < 8 [L40] EXPR d[i] [L40] EXPR d[j] [L40] COND FALSE !(d[i] == d[j]) [L39] j++ VAL [d={-1:0}, i=2, j=4] [L39] COND TRUE j < 8 [L40] EXPR d[i] [L40] EXPR d[j] [L40] COND FALSE !(d[i] == d[j]) [L39] j++ VAL [d={-1:0}, i=2, j=5] [L39] COND TRUE j < 8 [L40] EXPR d[i] [L40] EXPR d[j] [L40] COND FALSE !(d[i] == d[j]) [L39] j++ VAL [d={-1:0}, i=2, j=6] [L39] COND TRUE j < 8 [L40] EXPR d[i] [L40] EXPR d[j] [L40] COND FALSE !(d[i] == d[j]) [L39] j++ VAL [d={-1:0}, i=2, j=7] [L39] COND TRUE j < 8 [L40] EXPR d[i] [L40] EXPR d[j] [L40] COND FALSE !(d[i] == d[j]) [L39] j++ VAL [d={-1:0}, i=2, j=8] [L39] COND FALSE !(j < 8) VAL [d={-1:0}, i=2] [L38] i++ VAL [d={-1:0}, i=3] [L38] COND TRUE i < 7 [L39] int j = i + 1; VAL [d={-1:0}, i=3, j=4] [L39] COND TRUE j < 8 [L40] EXPR d[i] [L40] EXPR d[j] [L40] COND FALSE !(d[i] == d[j]) [L39] j++ VAL [d={-1:0}, i=3, j=5] [L39] COND TRUE j < 8 [L40] EXPR d[i] [L40] EXPR d[j] [L40] COND FALSE !(d[i] == d[j]) [L39] j++ VAL [d={-1:0}, i=3, j=6] [L39] COND TRUE j < 8 [L40] EXPR d[i] [L40] EXPR d[j] [L40] COND FALSE !(d[i] == d[j]) [L39] j++ VAL [d={-1:0}, i=3, j=7] [L39] COND TRUE j < 8 [L40] EXPR d[i] [L40] EXPR d[j] [L40] COND FALSE !(d[i] == d[j]) [L39] j++ VAL [d={-1:0}, i=3, j=8] [L39] COND FALSE !(j < 8) VAL [d={-1:0}, i=3] [L38] i++ VAL [d={-1:0}, i=4] [L38] COND TRUE i < 7 [L39] int j = i + 1; VAL [d={-1:0}, i=4, j=5] [L39] COND TRUE j < 8 [L40] EXPR d[i] [L40] EXPR d[j] [L40] COND FALSE !(d[i] == d[j]) [L39] j++ VAL [d={-1:0}, i=4, j=6] [L39] COND TRUE j < 8 [L40] EXPR d[i] [L40] EXPR d[j] [L40] COND FALSE !(d[i] == d[j]) [L39] j++ VAL [d={-1:0}, i=4, j=7] [L39] COND TRUE j < 8 [L40] EXPR d[i] [L40] EXPR d[j] [L40] COND FALSE !(d[i] == d[j]) [L39] j++ VAL [d={-1:0}, i=4, j=8] [L39] COND FALSE !(j < 8) VAL [d={-1:0}, i=4] [L38] i++ VAL [d={-1:0}, i=5] [L38] COND TRUE i < 7 [L39] int j = i + 1; VAL [d={-1:0}, i=5, j=6] [L39] COND TRUE j < 8 [L40] EXPR d[i] [L40] EXPR d[j] [L40] COND FALSE !(d[i] == d[j]) [L39] j++ VAL [d={-1:0}, i=5, j=7] [L39] COND TRUE j < 8 [L40] EXPR d[i] [L40] EXPR d[j] [L40] COND FALSE !(d[i] == d[j]) [L39] j++ VAL [d={-1:0}, i=5, j=8] [L39] COND FALSE !(j < 8) VAL [d={-1:0}, i=5] [L38] i++ VAL [d={-1:0}, i=6] [L38] COND TRUE i < 7 [L39] int j = i + 1; VAL [d={-1:0}, i=6, j=7] [L39] COND TRUE j < 8 [L40] EXPR d[i] [L40] EXPR d[j] [L40] COND FALSE !(d[i] == d[j]) [L39] j++ VAL [d={-1:0}, i=6, j=8] [L39] COND FALSE !(j < 8) VAL [d={-1:0}, i=6] [L38] i++ VAL [d={-1:0}, i=7] [L38] COND FALSE !(i < 7) VAL [d={-1:0}] [L42] return 1; [L37] int d[8] = {S, E, N, D, M, O, R, Y}; [L42] return 1; VAL [\result=1] [L51] RET, EXPR check_diff(S, E, N, D, M, O, R, Y) [L46-L51] check_domain_1(S) && check_domain_0(E) && check_domain_0(N) && check_domain_0(D) && check_domain_1(M) && check_domain_0(O) && check_domain_0(R) && check_domain_0(Y) && (1000 * S + 100 * E + 10 * N + D + 1000 * M + 100 * O + 10 * R + E == 10000 * M + 1000 * O + 100 * N + 10 * E + Y) && check_diff(S, E, N, D, M, O, R, Y) [L46-L51] COND TRUE check_domain_1(S) && check_domain_0(E) && check_domain_0(N) && check_domain_0(D) && check_domain_1(M) && check_domain_0(O) && check_domain_0(R) && check_domain_0(Y) && (1000 * S + 100 * E + 10 * N + D + 1000 * M + 100 * O + 10 * R + E == 10000 * M + 1000 * O + 100 * N + 10 * E + Y) && check_diff(S, E, N, D, M, O, R, Y) [L52] return 1; VAL [\result=1] [L67] RET, EXPR solve(s, e, n, d, m, o, r, y) [L67] CALL __VERIFIER_assert(!solve(s, e, n, d, m, o, r, y)) [L18] COND TRUE !(cond) [L20] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 58 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 22.0s, OverallIterations: 20, TraceHistogramMax: 28, PathProgramHistogramMax: 9, EmptinessCheckTime: 0.0s, AutomataDifference: 4.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 407 SdHoareTripleChecker+Valid, 3.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 407 mSDsluCounter, 9530 SdHoareTripleChecker+Invalid, 3.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 8182 mSDsCounter, 53 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 5419 IncrementalHoareTripleChecker+Invalid, 5472 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 53 mSolverCounterUnsat, 1348 mSDtfsCounter, 5419 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 3217 GetRequests, 2941 SyntacticMatches, 0 SemanticMatches, 276 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2818 ImplicationChecksByTransitivity, 4.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=161occurred in iteration=19, InterpolantAutomatonStates: 270, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 19 MinimizatonAttempts, 114 StatesRemovedByMinimization, 11 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.5s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 9.9s InterpolantComputationTime, 1792 NumberOfCodeBlocks, 1792 NumberOfCodeBlocksAsserted, 20 NumberOfCheckSat, 3178 ConstructedInterpolants, 0 QuantifiedInterpolants, 8633 SizeOfPredicates, 442 NumberOfNonLiveVariables, 3493 ConjunctsInSsa, 1441 ConjunctsInUnsatCore, 38 InterpolantComputations, 22 PerfectInterpolantSequences, 4614/10334 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2024-11-03 07:30:56,948 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request...