/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 'cvc4 --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 04:09:40,986 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-03 04:09:41,042 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 04:09:41,046 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-03 04:09:41,047 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-03 04:09:41,068 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-03 04:09:41,069 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-03 04:09:41,069 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-03 04:09:41,071 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-03 04:09:41,074 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-03 04:09:41,074 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-03 04:09:41,074 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-03 04:09:41,074 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-03 04:09:41,075 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-03 04:09:41,075 INFO L153 SettingsManager]: * Use SBE=true [2024-11-03 04:09:41,075 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-03 04:09:41,075 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-03 04:09:41,075 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-03 04:09:41,076 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-03 04:09:41,076 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-03 04:09:41,076 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-03 04:09:41,077 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-03 04:09:41,077 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-03 04:09:41,077 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-03 04:09:41,078 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-03 04:09:41,078 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-03 04:09:41,078 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-03 04:09:41,078 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-03 04:09:41,078 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-03 04:09:41,078 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-03 04:09:41,079 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-03 04:09:41,079 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-03 04:09:41,079 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-03 04:09:41,079 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-03 04:09:41,079 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-03 04:09:41,079 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-03 04:09:41,080 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-03 04:09:41,080 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-03 04:09:41,080 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-11-03 04:09:41,080 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-03 04:09:41,080 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-03 04:09:41,081 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-03 04:09:41,081 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-03 04:09:41,081 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-03 04:09:41,082 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Allow undefined functions -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Command for external solver -> cvc4 --incremental --print-success --lang smt [2024-11-03 04:09:41,265 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-03 04:09:41,284 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-03 04:09:41,286 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-03 04:09:41,287 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-03 04:09:41,287 INFO L274 PluginConnector]: CDTParser initialized [2024-11-03 04:09:41,288 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/floats-nonlinear/color-sendmoremoney.c [2024-11-03 04:09:42,638 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-03 04:09:42,782 INFO L384 CDTParser]: Found 1 translation units. [2024-11-03 04:09:42,783 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/floats-nonlinear/color-sendmoremoney.c [2024-11-03 04:09:42,789 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/55aa48ad3/9334e4279eba492e82adc64cb5225199/FLAG6d6ba8a3d [2024-11-03 04:09:42,799 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/55aa48ad3/9334e4279eba492e82adc64cb5225199 [2024-11-03 04:09:42,800 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-03 04:09:42,801 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-11-03 04:09:42,806 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-03 04:09:42,806 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-03 04:09:42,809 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-03 04:09:42,810 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 04:09:42" (1/1) ... [2024-11-03 04:09:42,814 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3f9a2581 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:09:42, skipping insertion in model container [2024-11-03 04:09:42,815 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 04:09:42" (1/1) ... [2024-11-03 04:09:42,839 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-03 04:09:42,972 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 04:09:42,996 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-03 04:09:43,003 INFO L200 MainTranslator]: Completed pre-run [2024-11-03 04:09:43,011 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 04:09:43,021 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-03 04:09:43,042 INFO L204 MainTranslator]: Completed translation [2024-11-03 04:09:43,042 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:09:43 WrapperNode [2024-11-03 04:09:43,043 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-03 04:09:43,044 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-03 04:09:43,044 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-03 04:09:43,044 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-03 04:09:43,051 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:09:43" (1/1) ... [2024-11-03 04:09:43,058 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:09:43" (1/1) ... [2024-11-03 04:09:43,075 INFO L138 Inliner]: procedures = 21, calls = 32, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 184 [2024-11-03 04:09:43,075 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-03 04:09:43,076 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-03 04:09:43,076 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-03 04:09:43,076 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-03 04:09:43,084 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:09:43" (1/1) ... [2024-11-03 04:09:43,084 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:09:43" (1/1) ... [2024-11-03 04:09:43,087 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:09:43" (1/1) ... [2024-11-03 04:09:43,096 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 04:09:43,096 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:09:43" (1/1) ... [2024-11-03 04:09:43,097 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:09:43" (1/1) ... [2024-11-03 04:09:43,102 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:09:43" (1/1) ... [2024-11-03 04:09:43,104 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:09:43" (1/1) ... [2024-11-03 04:09:43,105 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:09:43" (1/1) ... [2024-11-03 04:09:43,106 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:09:43" (1/1) ... [2024-11-03 04:09:43,108 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-03 04:09:43,109 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-03 04:09:43,109 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-03 04:09:43,109 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-03 04:09:43,110 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:09:43" (1/1) ... [2024-11-03 04:09:43,114 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-03 04:09:43,121 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-03 04:09:43,139 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 04:09:43,151 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 04:09:43,169 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-03 04:09:43,169 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-03 04:09:43,169 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2024-11-03 04:09:43,169 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#0 [2024-11-03 04:09:43,169 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#1 [2024-11-03 04:09:43,169 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-03 04:09:43,169 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2024-11-03 04:09:43,170 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2024-11-03 04:09:43,170 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-03 04:09:43,170 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-03 04:09:43,170 INFO L130 BoogieDeclarations]: Found specification of procedure check_domain_0 [2024-11-03 04:09:43,170 INFO L138 BoogieDeclarations]: Found implementation of procedure check_domain_0 [2024-11-03 04:09:43,170 INFO L130 BoogieDeclarations]: Found specification of procedure check_domain_1 [2024-11-03 04:09:43,170 INFO L138 BoogieDeclarations]: Found implementation of procedure check_domain_1 [2024-11-03 04:09:43,170 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-03 04:09:43,279 INFO L238 CfgBuilder]: Building ICFG [2024-11-03 04:09:43,281 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-03 04:09:43,573 INFO L? ?]: Removed 78 outVars from TransFormulas that were not future-live. [2024-11-03 04:09:43,573 INFO L287 CfgBuilder]: Performing block encoding [2024-11-03 04:09:43,585 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-03 04:09:43,585 INFO L316 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-03 04:09:43,585 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 04:09:43 BoogieIcfgContainer [2024-11-03 04:09:43,585 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-03 04:09:43,589 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-03 04:09:43,589 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-03 04:09:43,592 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-03 04:09:43,592 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 04:09:42" (1/3) ... [2024-11-03 04:09:43,593 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@182072f2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 04:09:43, skipping insertion in model container [2024-11-03 04:09:43,594 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:09:43" (2/3) ... [2024-11-03 04:09:43,594 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@182072f2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 04:09:43, skipping insertion in model container [2024-11-03 04:09:43,594 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 04:09:43" (3/3) ... [2024-11-03 04:09:43,595 INFO L112 eAbstractionObserver]: Analyzing ICFG color-sendmoremoney.c [2024-11-03 04:09:43,606 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-03 04:09:43,606 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-03 04:09:43,652 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-03 04:09:43,658 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;@1bb68daa, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-03 04:09:43,658 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-03 04:09:43,661 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 04:09:43,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2024-11-03 04:09:43,668 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 04:09:43,668 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 04:09:43,669 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 04:09:43,673 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 04:09:43,674 INFO L85 PathProgramCache]: Analyzing trace with hash -871385011, now seen corresponding path program 1 times [2024-11-03 04:09:43,680 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 04:09:43,681 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1653437877] [2024-11-03 04:09:43,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 04:09:43,683 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-03 04:09:43,683 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2024-11-03 04:09:43,687 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-03 04:09:43,689 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process [2024-11-03 04:09:43,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 04:09:43,817 INFO L255 TraceCheckSpWp]: Trace formula consists of 60 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-03 04:09:43,823 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 04:09:43,893 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 04:09:43,895 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 04:09:43,950 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 04:09:43,951 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 04:09:43,951 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1653437877] [2024-11-03 04:09:43,952 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [1653437877] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-03 04:09:43,952 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-03 04:09:43,952 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 7 [2024-11-03 04:09:43,957 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2108623246] [2024-11-03 04:09:43,957 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-03 04:09:43,960 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-03 04:09:43,960 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 04:09:43,980 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-03 04:09:43,981 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-03 04:09:43,983 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 7 states, 7 states have (on average 4.0) internal successors, (28), 5 states have internal predecessors, (28), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-03 04:09:44,057 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 04:09:44,058 INFO L93 Difference]: Finished difference Result 113 states and 156 transitions. [2024-11-03 04:09:44,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-03 04:09:44,061 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 4.0) internal successors, (28), 5 states have internal predecessors, (28), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 27 [2024-11-03 04:09:44,061 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 04:09:44,069 INFO L225 Difference]: With dead ends: 113 [2024-11-03 04:09:44,069 INFO L226 Difference]: Without dead ends: 58 [2024-11-03 04:09:44,073 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-03 04:09:44,079 INFO L432 NwaCegarLoop]: 75 mSDtfsCounter, 0 mSDsluCounter, 285 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 360 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-03 04:09:44,079 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 360 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-03 04:09:44,092 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2024-11-03 04:09:44,105 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 58. [2024-11-03 04:09:44,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58 states, 46 states have (on average 1.3043478260869565) internal successors, (60), 46 states have internal predecessors, (60), 8 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (10), 9 states have call predecessors, (10), 8 states have call successors, (10) [2024-11-03 04:09:44,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 78 transitions. [2024-11-03 04:09:44,112 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 78 transitions. Word has length 27 [2024-11-03 04:09:44,115 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 04:09:44,115 INFO L471 AbstractCegarLoop]: Abstraction has 58 states and 78 transitions. [2024-11-03 04:09:44,115 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 4.0) internal successors, (28), 5 states have internal predecessors, (28), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-03 04:09:44,116 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 78 transitions. [2024-11-03 04:09:44,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2024-11-03 04:09:44,117 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 04:09:44,118 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 04:09:44,123 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (2)] Forceful destruction successful, exit code 0 [2024-11-03 04:09:44,320 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt [2024-11-03 04:09:44,321 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 04:09:44,321 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 04:09:44,321 INFO L85 PathProgramCache]: Analyzing trace with hash 373379470, now seen corresponding path program 1 times [2024-11-03 04:09:44,321 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 04:09:44,322 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1068968118] [2024-11-03 04:09:44,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 04:09:44,322 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-03 04:09:44,322 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2024-11-03 04:09:44,324 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-03 04:09:44,325 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (3)] Waiting until timeout for monitored process [2024-11-03 04:09:44,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 04:09:44,392 INFO L255 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-03 04:09:44,393 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 04:09:44,415 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 04:09:44,415 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 04:09:44,447 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 04:09:44,447 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 04:09:44,447 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1068968118] [2024-11-03 04:09:44,448 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [1068968118] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-03 04:09:44,448 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-03 04:09:44,448 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 5 [2024-11-03 04:09:44,448 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1971073436] [2024-11-03 04:09:44,448 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-03 04:09:44,452 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-03 04:09:44,453 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 04:09:44,453 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-03 04:09:44,453 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-03 04:09:44,454 INFO L87 Difference]: Start difference. First operand 58 states and 78 transitions. Second operand has 5 states, 5 states have (on average 5.4) internal successors, (27), 5 states have internal predecessors, (27), 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 04:09:44,475 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 04:09:44,475 INFO L93 Difference]: Finished difference Result 62 states and 81 transitions. [2024-11-03 04:09:44,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-03 04:09:44,477 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.4) internal successors, (27), 5 states have internal predecessors, (27), 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 04:09:44,477 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 04:09:44,478 INFO L225 Difference]: With dead ends: 62 [2024-11-03 04:09:44,478 INFO L226 Difference]: Without dead ends: 58 [2024-11-03 04:09:44,478 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-03 04:09:44,479 INFO L432 NwaCegarLoop]: 72 mSDtfsCounter, 0 mSDsluCounter, 140 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 212 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 04:09:44,480 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 212 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-03 04:09:44,480 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2024-11-03 04:09:44,484 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 58. [2024-11-03 04:09:44,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58 states, 46 states have (on average 1.2826086956521738) internal successors, (59), 46 states have internal predecessors, (59), 8 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (10), 9 states have call predecessors, (10), 8 states have call successors, (10) [2024-11-03 04:09:44,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 77 transitions. [2024-11-03 04:09:44,486 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 77 transitions. Word has length 27 [2024-11-03 04:09:44,486 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 04:09:44,486 INFO L471 AbstractCegarLoop]: Abstraction has 58 states and 77 transitions. [2024-11-03 04:09:44,486 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.4) internal successors, (27), 5 states have internal predecessors, (27), 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 04:09:44,486 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 77 transitions. [2024-11-03 04:09:44,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2024-11-03 04:09:44,487 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 04:09:44,487 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 04:09:44,489 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (3)] Ended with exit code 0 [2024-11-03 04:09:44,689 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt [2024-11-03 04:09:44,690 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 04:09:44,691 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 04:09:44,691 INFO L85 PathProgramCache]: Analyzing trace with hash 373319888, now seen corresponding path program 1 times [2024-11-03 04:09:44,691 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 04:09:44,691 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [190092053] [2024-11-03 04:09:44,691 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 04:09:44,691 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-03 04:09:44,692 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2024-11-03 04:09:44,693 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-03 04:09:44,701 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2024-11-03 04:09:44,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 04:09:44,785 INFO L255 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-03 04:09:44,787 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 04:09:44,862 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 04:09:44,862 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 04:09:44,899 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 04:09:44,899 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 04:09:44,900 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [190092053] [2024-11-03 04:09:44,900 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [190092053] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-03 04:09:44,900 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-03 04:09:44,900 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10, 10] imperfect sequences [] total 10 [2024-11-03 04:09:44,900 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1102984715] [2024-11-03 04:09:44,900 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-03 04:09:44,901 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-03 04:09:44,901 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 04:09:44,901 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-03 04:09:44,901 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-11-03 04:09:44,901 INFO L87 Difference]: Start difference. First operand 58 states and 77 transitions. Second operand has 10 states, 10 states have (on average 2.5) internal successors, (25), 10 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 04:09:45,106 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 04:09:45,107 INFO L93 Difference]: Finished difference Result 120 states and 160 transitions. [2024-11-03 04:09:45,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-03 04:09:45,111 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 2.5) internal successors, (25), 10 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 04:09:45,112 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 04:09:45,113 INFO L225 Difference]: With dead ends: 120 [2024-11-03 04:09:45,113 INFO L226 Difference]: Without dead ends: 58 [2024-11-03 04:09:45,114 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-11-03 04:09:45,115 INFO L432 NwaCegarLoop]: 58 mSDtfsCounter, 0 mSDsluCounter, 422 mSDsCounter, 0 mSdLazyCounter, 160 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 480 SdHoareTripleChecker+Invalid, 174 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 160 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-03 04:09:45,115 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 480 Invalid, 174 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 160 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-03 04:09:45,115 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2024-11-03 04:09:45,119 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 54. [2024-11-03 04:09:45,119 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 04:09:45,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 64 transitions. [2024-11-03 04:09:45,120 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 64 transitions. Word has length 27 [2024-11-03 04:09:45,120 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 04:09:45,120 INFO L471 AbstractCegarLoop]: Abstraction has 54 states and 64 transitions. [2024-11-03 04:09:45,120 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 2.5) internal successors, (25), 10 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 04:09:45,120 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 64 transitions. [2024-11-03 04:09:45,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2024-11-03 04:09:45,124 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 04:09:45,124 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 04:09:45,127 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (4)] Forceful destruction successful, exit code 0 [2024-11-03 04:09:45,325 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt [2024-11-03 04:09:45,325 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 04:09:45,329 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 04:09:45,330 INFO L85 PathProgramCache]: Analyzing trace with hash 761216169, now seen corresponding path program 1 times [2024-11-03 04:09:45,330 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 04:09:45,330 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [168913594] [2024-11-03 04:09:45,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 04:09:45,330 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-03 04:09:45,330 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2024-11-03 04:09:45,331 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-03 04:09:45,333 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (5)] Waiting until timeout for monitored process [2024-11-03 04:09:45,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 04:09:45,495 INFO L255 TraceCheckSpWp]: Trace formula consists of 169 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-03 04:09:45,501 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 04:09:45,513 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 04:09:45,513 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 04:09:45,547 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 04:09:45,547 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 04:09:45,547 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [168913594] [2024-11-03 04:09:45,547 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [168913594] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-03 04:09:45,547 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-03 04:09:45,547 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2024-11-03 04:09:45,547 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1462503493] [2024-11-03 04:09:45,548 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-03 04:09:45,548 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-03 04:09:45,548 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 04:09:45,548 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-03 04:09:45,549 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-03 04:09:45,549 INFO L87 Difference]: Start difference. First operand 54 states and 64 transitions. Second operand has 4 states, 4 states have (on average 10.0) internal successors, (40), 4 states have internal predecessors, (40), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2024-11-03 04:09:45,565 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 04:09:45,566 INFO L93 Difference]: Finished difference Result 70 states and 83 transitions. [2024-11-03 04:09:45,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-03 04:09:45,566 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.0) internal successors, (40), 4 states have internal predecessors, (40), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) Word has length 72 [2024-11-03 04:09:45,566 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 04:09:45,567 INFO L225 Difference]: With dead ends: 70 [2024-11-03 04:09:45,567 INFO L226 Difference]: Without dead ends: 63 [2024-11-03 04:09:45,567 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 142 GetRequests, 140 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-03 04:09:45,568 INFO L432 NwaCegarLoop]: 61 mSDtfsCounter, 21 mSDsluCounter, 57 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 118 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-03 04:09:45,568 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 118 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-03 04:09:45,569 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2024-11-03 04:09:45,572 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 61. [2024-11-03 04:09:45,572 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 04:09:45,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 73 transitions. [2024-11-03 04:09:45,573 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 73 transitions. Word has length 72 [2024-11-03 04:09:45,573 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 04:09:45,573 INFO L471 AbstractCegarLoop]: Abstraction has 61 states and 73 transitions. [2024-11-03 04:09:45,573 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.0) internal successors, (40), 4 states have internal predecessors, (40), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2024-11-03 04:09:45,573 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 73 transitions. [2024-11-03 04:09:45,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2024-11-03 04:09:45,574 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 04:09:45,574 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 04:09:45,581 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (5)] Ended with exit code 0 [2024-11-03 04:09:45,781 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt [2024-11-03 04:09:45,782 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 04:09:45,782 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 04:09:45,782 INFO L85 PathProgramCache]: Analyzing trace with hash -1352872087, now seen corresponding path program 1 times [2024-11-03 04:09:45,782 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 04:09:45,782 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [594288843] [2024-11-03 04:09:45,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 04:09:45,783 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-03 04:09:45,783 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2024-11-03 04:09:45,784 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-03 04:09:45,785 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (6)] Waiting until timeout for monitored process [2024-11-03 04:09:45,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 04:09:45,913 INFO L255 TraceCheckSpWp]: Trace formula consists of 174 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-03 04:09:45,916 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 04:09:45,932 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 04:09:45,932 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 04:09:45,965 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 04:09:45,966 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 04:09:45,966 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [594288843] [2024-11-03 04:09:45,966 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [594288843] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-03 04:09:45,966 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-03 04:09:45,966 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2024-11-03 04:09:45,966 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1829143572] [2024-11-03 04:09:45,966 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-03 04:09:45,967 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-03 04:09:45,967 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 04:09:45,967 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-03 04:09:45,967 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-03 04:09:45,968 INFO L87 Difference]: Start difference. First operand 61 states and 73 transitions. Second operand has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2024-11-03 04:09:46,009 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 04:09:46,009 INFO L93 Difference]: Finished difference Result 67 states and 78 transitions. [2024-11-03 04:09:46,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-03 04:09:46,010 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) Word has length 73 [2024-11-03 04:09:46,010 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 04:09:46,011 INFO L225 Difference]: With dead ends: 67 [2024-11-03 04:09:46,011 INFO L226 Difference]: Without dead ends: 61 [2024-11-03 04:09:46,011 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 144 GetRequests, 142 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 04:09:46,012 INFO L432 NwaCegarLoop]: 63 mSDtfsCounter, 0 mSDsluCounter, 118 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 181 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-03 04:09:46,012 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 181 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-03 04:09:46,013 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2024-11-03 04:09:46,020 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 61. [2024-11-03 04:09:46,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61 states, 50 states have (on average 1.1) internal successors, (55), 50 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 04:09:46,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 71 transitions. [2024-11-03 04:09:46,021 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 71 transitions. Word has length 73 [2024-11-03 04:09:46,021 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 04:09:46,021 INFO L471 AbstractCegarLoop]: Abstraction has 61 states and 71 transitions. [2024-11-03 04:09:46,022 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2024-11-03 04:09:46,022 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 71 transitions. [2024-11-03 04:09:46,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2024-11-03 04:09:46,023 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 04:09:46,023 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] [2024-11-03 04:09:46,027 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (6)] Forceful destruction successful, exit code 0 [2024-11-03 04:09:46,224 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt [2024-11-03 04:09:46,224 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 04:09:46,224 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 04:09:46,224 INFO L85 PathProgramCache]: Analyzing trace with hash -1231189799, now seen corresponding path program 1 times [2024-11-03 04:09:46,225 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 04:09:46,225 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [986004294] [2024-11-03 04:09:46,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 04:09:46,225 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-03 04:09:46,225 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2024-11-03 04:09:46,226 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-03 04:09:46,228 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (7)] Waiting until timeout for monitored process [2024-11-03 04:09:46,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 04:09:46,409 INFO L255 TraceCheckSpWp]: Trace formula consists of 179 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-03 04:09:46,411 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 04:09:46,426 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2024-11-03 04:09:46,426 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 04:09:46,464 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2024-11-03 04:09:46,464 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 04:09:46,464 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [986004294] [2024-11-03 04:09:46,465 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [986004294] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-03 04:09:46,465 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-03 04:09:46,465 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2024-11-03 04:09:46,465 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [155108875] [2024-11-03 04:09:46,465 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-03 04:09:46,465 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-03 04:09:46,465 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 04:09:46,466 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-03 04:09:46,466 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-03 04:09:46,466 INFO L87 Difference]: Start difference. First operand 61 states and 71 transitions. Second operand has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 6 states have internal predecessors, (47), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2024-11-03 04:09:46,522 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 04:09:46,522 INFO L93 Difference]: Finished difference Result 82 states and 96 transitions. [2024-11-03 04:09:46,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-03 04:09:46,523 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 6 states have internal predecessors, (47), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) Word has length 80 [2024-11-03 04:09:46,524 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 04:09:46,524 INFO L225 Difference]: With dead ends: 82 [2024-11-03 04:09:46,524 INFO L226 Difference]: Without dead ends: 66 [2024-11-03 04:09:46,524 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 161 GetRequests, 154 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2024-11-03 04:09:46,525 INFO L432 NwaCegarLoop]: 59 mSDtfsCounter, 33 mSDsluCounter, 164 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 223 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-03 04:09:46,525 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 223 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-03 04:09:46,526 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2024-11-03 04:09:46,532 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 66. [2024-11-03 04:09:46,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66 states, 55 states have (on average 1.0909090909090908) internal successors, (60), 55 states have internal predecessors, (60), 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 04:09:46,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 76 transitions. [2024-11-03 04:09:46,533 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 76 transitions. Word has length 80 [2024-11-03 04:09:46,533 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 04:09:46,533 INFO L471 AbstractCegarLoop]: Abstraction has 66 states and 76 transitions. [2024-11-03 04:09:46,536 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 6 states have internal predecessors, (47), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2024-11-03 04:09:46,536 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 76 transitions. [2024-11-03 04:09:46,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2024-11-03 04:09:46,537 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 04:09:46,537 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 3, 3, 3, 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 04:09:46,546 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (7)] Ended with exit code 0 [2024-11-03 04:09:46,738 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt [2024-11-03 04:09:46,738 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 04:09:46,738 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 04:09:46,738 INFO L85 PathProgramCache]: Analyzing trace with hash -710473733, now seen corresponding path program 1 times [2024-11-03 04:09:46,739 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 04:09:46,739 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [766900169] [2024-11-03 04:09:46,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 04:09:46,739 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-03 04:09:46,739 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2024-11-03 04:09:46,741 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-03 04:09:46,745 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (8)] Waiting until timeout for monitored process [2024-11-03 04:09:46,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 04:09:46,893 INFO L255 TraceCheckSpWp]: Trace formula consists of 194 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-03 04:09:46,895 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 04:09:46,922 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 12 proven. 5 refuted. 0 times theorem prover too weak. 68 trivial. 0 not checked. [2024-11-03 04:09:46,922 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 04:09:46,988 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 12 proven. 5 refuted. 0 times theorem prover too weak. 68 trivial. 0 not checked. [2024-11-03 04:09:46,988 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 04:09:46,988 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [766900169] [2024-11-03 04:09:46,988 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [766900169] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-03 04:09:46,989 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-03 04:09:46,989 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2024-11-03 04:09:46,989 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [776022694] [2024-11-03 04:09:46,989 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-03 04:09:46,989 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-03 04:09:46,989 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 04:09:46,990 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-03 04:09:46,990 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2024-11-03 04:09:46,990 INFO L87 Difference]: Start difference. First operand 66 states and 76 transitions. Second operand has 10 states, 10 states have (on average 6.2) internal successors, (62), 10 states have internal predecessors, (62), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2024-11-03 04:09:47,137 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 04:09:47,137 INFO L93 Difference]: Finished difference Result 107 states and 125 transitions. [2024-11-03 04:09:47,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-03 04:09:47,138 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 6.2) internal successors, (62), 10 states have internal predecessors, (62), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) Word has length 89 [2024-11-03 04:09:47,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 04:09:47,139 INFO L225 Difference]: With dead ends: 107 [2024-11-03 04:09:47,139 INFO L226 Difference]: Without dead ends: 90 [2024-11-03 04:09:47,139 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 185 GetRequests, 168 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=114, Invalid=228, Unknown=0, NotChecked=0, Total=342 [2024-11-03 04:09:47,140 INFO L432 NwaCegarLoop]: 61 mSDtfsCounter, 53 mSDsluCounter, 280 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 341 SdHoareTripleChecker+Invalid, 68 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-03 04:09:47,140 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [53 Valid, 341 Invalid, 68 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-03 04:09:47,140 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2024-11-03 04:09:47,144 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 84. [2024-11-03 04:09:47,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 84 states, 73 states have (on average 1.0684931506849316) internal successors, (78), 73 states have internal predecessors, (78), 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 04:09:47,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 94 transitions. [2024-11-03 04:09:47,145 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 94 transitions. Word has length 89 [2024-11-03 04:09:47,145 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 04:09:47,145 INFO L471 AbstractCegarLoop]: Abstraction has 84 states and 94 transitions. [2024-11-03 04:09:47,146 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 6.2) internal successors, (62), 10 states have internal predecessors, (62), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2024-11-03 04:09:47,146 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 94 transitions. [2024-11-03 04:09:47,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-11-03 04:09:47,146 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 04:09:47,146 INFO L215 NwaCegarLoop]: trace histogram [9, 9, 9, 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 04:09:47,152 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (8)] Ended with exit code 0 [2024-11-03 04:09:47,349 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt [2024-11-03 04:09:47,350 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 04:09:47,350 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 04:09:47,350 INFO L85 PathProgramCache]: Analyzing trace with hash 866534843, now seen corresponding path program 2 times [2024-11-03 04:09:47,350 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 04:09:47,350 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [909542993] [2024-11-03 04:09:47,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 04:09:47,351 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-03 04:09:47,351 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2024-11-03 04:09:47,352 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-03 04:09:47,356 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (9)] Waiting until timeout for monitored process [2024-11-03 04:09:47,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 04:09:47,537 INFO L255 TraceCheckSpWp]: Trace formula consists of 224 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-03 04:09:47,540 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 04:09:47,607 INFO L134 CoverageAnalysis]: Checked inductivity of 196 backedges. 66 proven. 51 refuted. 0 times theorem prover too weak. 79 trivial. 0 not checked. [2024-11-03 04:09:47,607 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 04:09:47,771 INFO L134 CoverageAnalysis]: Checked inductivity of 196 backedges. 66 proven. 51 refuted. 0 times theorem prover too weak. 79 trivial. 0 not checked. [2024-11-03 04:09:47,771 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 04:09:47,771 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [909542993] [2024-11-03 04:09:47,771 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [909542993] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-03 04:09:47,771 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-03 04:09:47,771 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 18 [2024-11-03 04:09:47,771 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [63586370] [2024-11-03 04:09:47,771 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-03 04:09:47,772 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-03 04:09:47,772 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 04:09:47,772 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-03 04:09:47,772 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=244, Unknown=0, NotChecked=0, Total=306 [2024-11-03 04:09:47,772 INFO L87 Difference]: Start difference. First operand 84 states and 94 transitions. Second operand has 18 states, 18 states have (on average 4.777777777777778) internal successors, (86), 18 states have internal predecessors, (86), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2024-11-03 04:09:47,965 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 04:09:47,965 INFO L93 Difference]: Finished difference Result 113 states and 125 transitions. [2024-11-03 04:09:47,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-03 04:09:47,966 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 4.777777777777778) internal successors, (86), 18 states have internal predecessors, (86), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) Word has length 107 [2024-11-03 04:09:47,966 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 04:09:47,967 INFO L225 Difference]: With dead ends: 113 [2024-11-03 04:09:47,967 INFO L226 Difference]: Without dead ends: 90 [2024-11-03 04:09:47,968 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 220 GetRequests, 196 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=137, Invalid=513, Unknown=0, NotChecked=0, Total=650 [2024-11-03 04:09:47,968 INFO L432 NwaCegarLoop]: 65 mSDtfsCounter, 61 mSDsluCounter, 539 mSDsCounter, 0 mSdLazyCounter, 182 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 604 SdHoareTripleChecker+Invalid, 185 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 182 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-03 04:09:47,969 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 604 Invalid, 185 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 182 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-03 04:09:47,969 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2024-11-03 04:09:47,975 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 87. [2024-11-03 04:09:47,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87 states, 76 states have (on average 1.0657894736842106) internal successors, (81), 76 states have internal predecessors, (81), 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 04:09:47,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 97 transitions. [2024-11-03 04:09:47,976 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 97 transitions. Word has length 107 [2024-11-03 04:09:47,976 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 04:09:47,977 INFO L471 AbstractCegarLoop]: Abstraction has 87 states and 97 transitions. [2024-11-03 04:09:47,977 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 4.777777777777778) internal successors, (86), 18 states have internal predecessors, (86), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2024-11-03 04:09:47,977 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 97 transitions. [2024-11-03 04:09:47,978 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2024-11-03 04:09:47,978 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 04:09:47,978 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 10, 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 04:09:47,984 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (9)] Ended with exit code 0 [2024-11-03 04:09:48,178 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt [2024-11-03 04:09:48,179 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 04:09:48,179 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 04:09:48,180 INFO L85 PathProgramCache]: Analyzing trace with hash 1984226921, now seen corresponding path program 3 times [2024-11-03 04:09:48,180 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 04:09:48,180 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1946509772] [2024-11-03 04:09:48,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 04:09:48,180 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-03 04:09:48,180 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2024-11-03 04:09:48,182 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-03 04:09:48,185 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (10)] Waiting until timeout for monitored process [2024-11-03 04:09:48,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 04:09:48,403 INFO L255 TraceCheckSpWp]: Trace formula consists of 229 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-03 04:09:48,405 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 04:09:48,482 INFO L134 CoverageAnalysis]: Checked inductivity of 225 backedges. 4 proven. 87 refuted. 0 times theorem prover too weak. 134 trivial. 0 not checked. [2024-11-03 04:09:48,482 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 04:09:48,618 INFO L134 CoverageAnalysis]: Checked inductivity of 225 backedges. 4 proven. 87 refuted. 0 times theorem prover too weak. 134 trivial. 0 not checked. [2024-11-03 04:09:48,619 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 04:09:48,619 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1946509772] [2024-11-03 04:09:48,619 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [1946509772] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-03 04:09:48,619 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-03 04:09:48,619 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 14 [2024-11-03 04:09:48,619 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [72547890] [2024-11-03 04:09:48,619 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-03 04:09:48,619 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-03 04:09:48,619 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 04:09:48,620 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-03 04:09:48,620 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=138, Unknown=0, NotChecked=0, Total=182 [2024-11-03 04:09:48,620 INFO L87 Difference]: Start difference. First operand 87 states and 97 transitions. Second operand has 14 states, 14 states have (on average 5.5) internal successors, (77), 14 states have internal predecessors, (77), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2024-11-03 04:09:49,001 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 04:09:49,002 INFO L93 Difference]: Finished difference Result 148 states and 173 transitions. [2024-11-03 04:09:49,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2024-11-03 04:09:49,002 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 5.5) internal successors, (77), 14 states have internal predecessors, (77), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) Word has length 110 [2024-11-03 04:09:49,003 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 04:09:49,003 INFO L225 Difference]: With dead ends: 148 [2024-11-03 04:09:49,003 INFO L226 Difference]: Without dead ends: 134 [2024-11-03 04:09:49,004 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 237 GetRequests, 206 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 188 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=287, Invalid=769, Unknown=0, NotChecked=0, Total=1056 [2024-11-03 04:09:49,004 INFO L432 NwaCegarLoop]: 64 mSDtfsCounter, 110 mSDsluCounter, 404 mSDsCounter, 0 mSdLazyCounter, 137 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 468 SdHoareTripleChecker+Invalid, 153 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 137 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-03 04:09:49,004 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [110 Valid, 468 Invalid, 153 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 137 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-03 04:09:49,005 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134 states. [2024-11-03 04:09:49,011 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 134 to 128. [2024-11-03 04:09:49,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 128 states, 117 states have (on average 1.0769230769230769) internal successors, (126), 117 states have internal predecessors, (126), 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 04:09:49,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 128 states and 142 transitions. [2024-11-03 04:09:49,012 INFO L78 Accepts]: Start accepts. Automaton has 128 states and 142 transitions. Word has length 110 [2024-11-03 04:09:49,013 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 04:09:49,013 INFO L471 AbstractCegarLoop]: Abstraction has 128 states and 142 transitions. [2024-11-03 04:09:49,013 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 5.5) internal successors, (77), 14 states have internal predecessors, (77), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2024-11-03 04:09:49,013 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 142 transitions. [2024-11-03 04:09:49,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2024-11-03 04:09:49,013 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 04:09:49,014 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 04:09:49,022 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (10)] Ended with exit code 0 [2024-11-03 04:09:49,217 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt [2024-11-03 04:09:49,218 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 04:09:49,218 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 04:09:49,218 INFO L85 PathProgramCache]: Analyzing trace with hash 2129542763, now seen corresponding path program 4 times [2024-11-03 04:09:49,218 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 04:09:49,218 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1481479694] [2024-11-03 04:09:49,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 04:09:49,219 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-03 04:09:49,219 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2024-11-03 04:09:49,222 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-03 04:09:49,223 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (11)] Waiting until timeout for monitored process [2024-11-03 04:09:49,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 04:09:49,413 INFO L255 TraceCheckSpWp]: Trace formula consists of 244 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-03 04:09:49,415 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 04:09:49,475 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 04:09:49,475 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 04:09:49,572 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 04:09:49,572 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 04:09:49,572 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1481479694] [2024-11-03 04:09:49,572 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [1481479694] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-03 04:09:49,573 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-03 04:09:49,573 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2024-11-03 04:09:49,573 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [661295117] [2024-11-03 04:09:49,573 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-03 04:09:49,573 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-03 04:09:49,573 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 04:09:49,573 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-03 04:09:49,574 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-11-03 04:09:49,574 INFO L87 Difference]: Start difference. First operand 128 states and 142 transitions. Second operand has 8 states, 8 states have (on average 8.5) internal successors, (68), 8 states have internal predecessors, (68), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2024-11-03 04:09:49,638 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 04:09:49,639 INFO L93 Difference]: Finished difference Result 149 states and 166 transitions. [2024-11-03 04:09:49,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-03 04:09:49,639 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.5) internal successors, (68), 8 states have internal predecessors, (68), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) Word has length 119 [2024-11-03 04:09:49,639 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 04:09:49,640 INFO L225 Difference]: With dead ends: 149 [2024-11-03 04:09:49,640 INFO L226 Difference]: Without dead ends: 142 [2024-11-03 04:09:49,640 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 238 GetRequests, 230 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2024-11-03 04:09:49,641 INFO L432 NwaCegarLoop]: 68 mSDtfsCounter, 24 mSDsluCounter, 292 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 360 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-03 04:09:49,641 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 360 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-03 04:09:49,642 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 142 states. [2024-11-03 04:09:49,651 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 142 to 142. [2024-11-03 04:09:49,651 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 04:09:49,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 142 states and 156 transitions. [2024-11-03 04:09:49,652 INFO L78 Accepts]: Start accepts. Automaton has 142 states and 156 transitions. Word has length 119 [2024-11-03 04:09:49,652 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 04:09:49,652 INFO L471 AbstractCegarLoop]: Abstraction has 142 states and 156 transitions. [2024-11-03 04:09:49,652 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.5) internal successors, (68), 8 states have internal predecessors, (68), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2024-11-03 04:09:49,652 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 156 transitions. [2024-11-03 04:09:49,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2024-11-03 04:09:49,654 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 04:09:49,654 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 04:09:49,658 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (11)] Ended with exit code 0 [2024-11-03 04:09:49,854 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt [2024-11-03 04:09:49,855 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 04:09:49,855 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 04:09:49,855 INFO L85 PathProgramCache]: Analyzing trace with hash 719415003, now seen corresponding path program 5 times [2024-11-03 04:09:49,855 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 04:09:49,855 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1064400882] [2024-11-03 04:09:49,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 04:09:49,856 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-03 04:09:49,856 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2024-11-03 04:09:49,857 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-03 04:09:49,858 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (12)] Waiting until timeout for monitored process [2024-11-03 04:09:50,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 04:09:50,168 INFO L255 TraceCheckSpWp]: Trace formula consists of 314 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-03 04:09:50,190 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 04:09:50,326 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 04:09:50,327 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 04:09:50,565 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 04:09:50,565 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 04:09:50,565 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1064400882] [2024-11-03 04:09:50,565 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [1064400882] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-03 04:09:50,565 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-03 04:09:50,565 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 18 [2024-11-03 04:09:50,566 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [385930714] [2024-11-03 04:09:50,566 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-03 04:09:50,566 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-03 04:09:50,566 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 04:09:50,567 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-03 04:09:50,567 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=252, Unknown=0, NotChecked=0, Total=306 [2024-11-03 04:09:50,567 INFO L87 Difference]: Start difference. First operand 142 states and 156 transitions. Second operand has 18 states, 18 states have (on average 5.666666666666667) internal successors, (102), 18 states have internal predecessors, (102), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2024-11-03 04:09:51,012 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 04:09:51,012 INFO L93 Difference]: Finished difference Result 187 states and 205 transitions. [2024-11-03 04:09:51,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-11-03 04:09:51,013 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 5.666666666666667) internal successors, (102), 18 states have internal predecessors, (102), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) Word has length 165 [2024-11-03 04:09:51,013 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 04:09:51,014 INFO L225 Difference]: With dead ends: 187 [2024-11-03 04:09:51,014 INFO L226 Difference]: Without dead ends: 147 [2024-11-03 04:09:51,014 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 344 GetRequests, 312 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 148 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=209, Invalid=913, Unknown=0, NotChecked=0, Total=1122 [2024-11-03 04:09:51,015 INFO L432 NwaCegarLoop]: 69 mSDtfsCounter, 48 mSDsluCounter, 775 mSDsCounter, 0 mSdLazyCounter, 301 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 844 SdHoareTripleChecker+Invalid, 314 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 301 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-03 04:09:51,015 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 844 Invalid, 314 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 301 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-03 04:09:51,015 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 147 states. [2024-11-03 04:09:51,021 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 147 to 145. [2024-11-03 04:09:51,021 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 04:09:51,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145 states to 145 states and 159 transitions. [2024-11-03 04:09:51,022 INFO L78 Accepts]: Start accepts. Automaton has 145 states and 159 transitions. Word has length 165 [2024-11-03 04:09:51,022 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 04:09:51,022 INFO L471 AbstractCegarLoop]: Abstraction has 145 states and 159 transitions. [2024-11-03 04:09:51,022 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 5.666666666666667) internal successors, (102), 18 states have internal predecessors, (102), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2024-11-03 04:09:51,022 INFO L276 IsEmpty]: Start isEmpty. Operand 145 states and 159 transitions. [2024-11-03 04:09:51,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2024-11-03 04:09:51,023 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 04:09:51,023 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 04:09:51,030 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (12)] Ended with exit code 0 [2024-11-03 04:09:51,228 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt [2024-11-03 04:09:51,228 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 04:09:51,229 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 04:09:51,229 INFO L85 PathProgramCache]: Analyzing trace with hash -232918615, now seen corresponding path program 6 times [2024-11-03 04:09:51,229 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 04:09:51,229 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1852878794] [2024-11-03 04:09:51,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 04:09:51,229 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-03 04:09:51,229 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2024-11-03 04:09:51,232 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-03 04:09:51,233 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (13)] Waiting until timeout for monitored process [2024-11-03 04:09:51,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 04:09:51,496 INFO L255 TraceCheckSpWp]: Trace formula consists of 319 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-03 04:09:51,499 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 04:09:51,625 INFO L134 CoverageAnalysis]: Checked inductivity of 1102 backedges. 128 proven. 728 refuted. 0 times theorem prover too weak. 246 trivial. 0 not checked. [2024-11-03 04:09:51,625 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 04:09:51,835 INFO L134 CoverageAnalysis]: Checked inductivity of 1102 backedges. 128 proven. 728 refuted. 0 times theorem prover too weak. 246 trivial. 0 not checked. [2024-11-03 04:09:51,835 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 04:09:51,835 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1852878794] [2024-11-03 04:09:51,835 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [1852878794] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-03 04:09:51,835 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-03 04:09:51,835 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 16 [2024-11-03 04:09:51,835 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [966954433] [2024-11-03 04:09:51,835 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-03 04:09:51,836 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-03 04:09:51,836 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 04:09:51,837 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-03 04:09:51,837 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=188, Unknown=0, NotChecked=0, Total=240 [2024-11-03 04:09:51,837 INFO L87 Difference]: Start difference. First operand 145 states and 159 transitions. Second operand has 16 states, 16 states have (on average 7.0) internal successors, (112), 16 states have internal predecessors, (112), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2024-11-03 04:09:52,133 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 04:09:52,133 INFO L93 Difference]: Finished difference Result 177 states and 196 transitions. [2024-11-03 04:09:52,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-11-03 04:09:52,133 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.0) internal successors, (112), 16 states have internal predecessors, (112), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) Word has length 168 [2024-11-03 04:09:52,134 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 04:09:52,134 INFO L225 Difference]: With dead ends: 177 [2024-11-03 04:09:52,134 INFO L226 Difference]: Without dead ends: 160 [2024-11-03 04:09:52,135 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 347 GetRequests, 320 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 97 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=177, Invalid=635, Unknown=0, NotChecked=0, Total=812 [2024-11-03 04:09:52,135 INFO L432 NwaCegarLoop]: 72 mSDtfsCounter, 62 mSDsluCounter, 618 mSDsCounter, 0 mSdLazyCounter, 247 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 690 SdHoareTripleChecker+Invalid, 260 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 247 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-03 04:09:52,135 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 690 Invalid, 260 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 247 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-03 04:09:52,136 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160 states. [2024-11-03 04:09:52,143 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160 to 154. [2024-11-03 04:09:52,144 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 04:09:52,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 168 transitions. [2024-11-03 04:09:52,144 INFO L78 Accepts]: Start accepts. Automaton has 154 states and 168 transitions. Word has length 168 [2024-11-03 04:09:52,145 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 04:09:52,145 INFO L471 AbstractCegarLoop]: Abstraction has 154 states and 168 transitions. [2024-11-03 04:09:52,145 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.0) internal successors, (112), 16 states have internal predecessors, (112), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2024-11-03 04:09:52,145 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 168 transitions. [2024-11-03 04:09:52,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2024-11-03 04:09:52,146 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 04:09:52,146 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 04:09:52,151 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (13)] Ended with exit code 0 [2024-11-03 04:09:52,346 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt [2024-11-03 04:09:52,347 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 04:09:52,347 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 04:09:52,347 INFO L85 PathProgramCache]: Analyzing trace with hash -1416794837, now seen corresponding path program 7 times [2024-11-03 04:09:52,347 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 04:09:52,348 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1733145072] [2024-11-03 04:09:52,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 04:09:52,348 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-03 04:09:52,348 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2024-11-03 04:09:52,351 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-03 04:09:52,354 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (14)] Waiting until timeout for monitored process [2024-11-03 04:09:52,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 04:09:52,676 INFO L255 TraceCheckSpWp]: Trace formula consists of 334 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-03 04:09:52,679 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 04:09:52,843 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 04:09:52,843 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 04:09:53,059 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 04:09:53,059 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 04:09:53,059 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1733145072] [2024-11-03 04:09:53,059 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [1733145072] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-03 04:09:53,059 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-03 04:09:53,059 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 16 [2024-11-03 04:09:53,060 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1793548361] [2024-11-03 04:09:53,060 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-03 04:09:53,060 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-03 04:09:53,060 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 04:09:53,060 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-03 04:09:53,061 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=183, Unknown=0, NotChecked=0, Total=240 [2024-11-03 04:09:53,061 INFO L87 Difference]: Start difference. First operand 154 states and 168 transitions. Second operand has 16 states, 16 states have (on average 7.75) internal successors, (124), 16 states have internal predecessors, (124), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2024-11-03 04:09:53,179 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 04:09:53,180 INFO L93 Difference]: Finished difference Result 174 states and 190 transitions. [2024-11-03 04:09:53,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-03 04:09:53,180 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.75) internal successors, (124), 16 states have internal predecessors, (124), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) Word has length 177 [2024-11-03 04:09:53,180 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 04:09:53,181 INFO L225 Difference]: With dead ends: 174 [2024-11-03 04:09:53,181 INFO L226 Difference]: Without dead ends: 167 [2024-11-03 04:09:53,181 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 352 GetRequests, 338 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=57, Invalid=183, Unknown=0, NotChecked=0, Total=240 [2024-11-03 04:09:53,182 INFO L432 NwaCegarLoop]: 84 mSDtfsCounter, 11 mSDsluCounter, 712 mSDsCounter, 0 mSdLazyCounter, 205 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 796 SdHoareTripleChecker+Invalid, 206 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 205 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-03 04:09:53,182 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 796 Invalid, 206 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 205 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-03 04:09:53,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 167 states. [2024-11-03 04:09:53,188 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 167 to 161. [2024-11-03 04:09:53,188 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 04:09:53,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 161 states to 161 states and 176 transitions. [2024-11-03 04:09:53,189 INFO L78 Accepts]: Start accepts. Automaton has 161 states and 176 transitions. Word has length 177 [2024-11-03 04:09:53,189 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 04:09:53,189 INFO L471 AbstractCegarLoop]: Abstraction has 161 states and 176 transitions. [2024-11-03 04:09:53,189 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.75) internal successors, (124), 16 states have internal predecessors, (124), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2024-11-03 04:09:53,189 INFO L276 IsEmpty]: Start isEmpty. Operand 161 states and 176 transitions. [2024-11-03 04:09:53,190 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2024-11-03 04:09:53,190 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 04:09:53,190 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 04:09:53,196 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (14)] Ended with exit code 0 [2024-11-03 04:09:53,391 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt [2024-11-03 04:09:53,391 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 04:09:53,391 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 04:09:53,391 INFO L85 PathProgramCache]: Analyzing trace with hash 773529361, now seen corresponding path program 8 times [2024-11-03 04:09:53,391 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 04:09:53,391 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1458876566] [2024-11-03 04:09:53,391 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 04:09:53,391 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-03 04:09:53,392 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2024-11-03 04:09:53,393 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-03 04:09:53,394 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (15)] Waiting until timeout for monitored process [2024-11-03 04:09:53,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-03 04:09:53,927 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-03 04:09:54,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-03 04:09:54,745 INFO L130 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2024-11-03 04:09:54,745 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-03 04:09:54,746 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-03 04:09:54,762 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (15)] Ended with exit code 0 [2024-11-03 04:09:54,947 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt [2024-11-03 04:09:54,951 INFO L407 BasicCegarLoop]: Path program histogram: [8, 1, 1, 1, 1, 1, 1] [2024-11-03 04:09:55,005 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-03 04:09:55,007 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.11 04:09:55 BoogieIcfgContainer [2024-11-03 04:09:55,007 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-03 04:09:55,008 INFO L158 Benchmark]: Toolchain (without parser) took 12206.25ms. Allocated memory was 210.8MB in the beginning and 370.1MB in the end (delta: 159.4MB). Free memory was 147.0MB in the beginning and 217.7MB in the end (delta: -70.7MB). Peak memory consumption was 89.2MB. Max. memory is 8.0GB. [2024-11-03 04:09:55,008 INFO L158 Benchmark]: CDTParser took 0.22ms. Allocated memory is still 210.8MB. Free memory is still 158.9MB. There was no memory consumed. Max. memory is 8.0GB. [2024-11-03 04:09:55,008 INFO L158 Benchmark]: CACSL2BoogieTranslator took 237.38ms. Allocated memory is still 210.8MB. Free memory was 147.0MB in the beginning and 132.9MB in the end (delta: 14.0MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. [2024-11-03 04:09:55,008 INFO L158 Benchmark]: Boogie Procedure Inliner took 32.00ms. Allocated memory is still 210.8MB. Free memory was 132.9MB in the beginning and 131.0MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2024-11-03 04:09:55,008 INFO L158 Benchmark]: Boogie Preprocessor took 32.27ms. Allocated memory is still 210.8MB. Free memory was 130.8MB in the beginning and 128.1MB in the end (delta: 2.7MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2024-11-03 04:09:55,008 INFO L158 Benchmark]: RCFGBuilder took 476.62ms. Allocated memory was 210.8MB in the beginning and 294.6MB in the end (delta: 83.9MB). Free memory was 128.1MB in the beginning and 249.6MB in the end (delta: -121.5MB). Peak memory consumption was 17.0MB. Max. memory is 8.0GB. [2024-11-03 04:09:55,009 INFO L158 Benchmark]: TraceAbstraction took 11418.47ms. Allocated memory was 294.6MB in the beginning and 370.1MB in the end (delta: 75.5MB). Free memory was 249.1MB in the beginning and 217.7MB in the end (delta: 31.3MB). Peak memory consumption was 106.8MB. Max. memory is 8.0GB. [2024-11-03 04:09:55,009 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22ms. Allocated memory is still 210.8MB. Free memory is still 158.9MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 237.38ms. Allocated memory is still 210.8MB. Free memory was 147.0MB in the beginning and 132.9MB in the end (delta: 14.0MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 32.00ms. Allocated memory is still 210.8MB. Free memory was 132.9MB in the beginning and 131.0MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 32.27ms. Allocated memory is still 210.8MB. Free memory was 130.8MB in the beginning and 128.1MB in the end (delta: 2.7MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * RCFGBuilder took 476.62ms. Allocated memory was 210.8MB in the beginning and 294.6MB in the end (delta: 83.9MB). Free memory was 128.1MB in the beginning and 249.6MB in the end (delta: -121.5MB). Peak memory consumption was 17.0MB. Max. memory is 8.0GB. * TraceAbstraction took 11418.47ms. Allocated memory was 294.6MB in the beginning and 370.1MB in the end (delta: 75.5MB). Free memory was 249.1MB in the beginning and 217.7MB in the end (delta: 31.3MB). Peak memory consumption was 106.8MB. 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={-2147221248:0}, i=0] [L38] COND TRUE i < 7 [L39] int j = i + 1; VAL [d={-2147221248:0}, 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={-2147221248:0}, 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={-2147221248:0}, 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={-2147221248:0}, 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={-2147221248:0}, 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={-2147221248:0}, 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={-2147221248:0}, 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={-2147221248:0}, i=0, j=8] [L39] COND FALSE !(j < 8) VAL [d={-2147221248:0}, i=0] [L38] i++ VAL [d={-2147221248:0}, i=1] [L38] COND TRUE i < 7 [L39] int j = i + 1; VAL [d={-2147221248:0}, 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={-2147221248:0}, 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={-2147221248:0}, 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={-2147221248:0}, 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={-2147221248:0}, 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={-2147221248:0}, 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={-2147221248:0}, i=1, j=8] [L39] COND FALSE !(j < 8) VAL [d={-2147221248:0}, i=1] [L38] i++ VAL [d={-2147221248:0}, i=2] [L38] COND TRUE i < 7 [L39] int j = i + 1; VAL [d={-2147221248:0}, 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={-2147221248:0}, 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={-2147221248:0}, 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={-2147221248:0}, 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={-2147221248:0}, 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={-2147221248:0}, i=2, j=8] [L39] COND FALSE !(j < 8) VAL [d={-2147221248:0}, i=2] [L38] i++ VAL [d={-2147221248:0}, i=3] [L38] COND TRUE i < 7 [L39] int j = i + 1; VAL [d={-2147221248:0}, 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={-2147221248:0}, 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={-2147221248:0}, 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={-2147221248:0}, 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={-2147221248:0}, i=3, j=8] [L39] COND FALSE !(j < 8) VAL [d={-2147221248:0}, i=3] [L38] i++ VAL [d={-2147221248:0}, i=4] [L38] COND TRUE i < 7 [L39] int j = i + 1; VAL [d={-2147221248:0}, 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={-2147221248:0}, 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={-2147221248:0}, 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={-2147221248:0}, i=4, j=8] [L39] COND FALSE !(j < 8) VAL [d={-2147221248:0}, i=4] [L38] i++ VAL [d={-2147221248:0}, i=5] [L38] COND TRUE i < 7 [L39] int j = i + 1; VAL [d={-2147221248:0}, 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={-2147221248:0}, 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={-2147221248:0}, i=5, j=8] [L39] COND FALSE !(j < 8) VAL [d={-2147221248:0}, i=5] [L38] i++ VAL [d={-2147221248:0}, i=6] [L38] COND TRUE i < 7 [L39] int j = i + 1; VAL [d={-2147221248:0}, 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={-2147221248:0}, i=6, j=8] [L39] COND FALSE !(j < 8) VAL [d={-2147221248:0}, i=6] [L38] i++ VAL [d={-2147221248:0}, i=7] [L38] COND FALSE !(i < 7) VAL [d={-2147221248:0}] [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: 11.3s, OverallIterations: 14, TraceHistogramMax: 28, PathProgramHistogramMax: 8, EmptinessCheckTime: 0.0s, AutomataDifference: 2.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 423 SdHoareTripleChecker+Valid, 1.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 423 mSDsluCounter, 5677 SdHoareTripleChecker+Invalid, 0.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 4806 mSDsCounter, 78 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1419 IncrementalHoareTripleChecker+Invalid, 1497 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 78 mSolverCounterUnsat, 871 mSDtfsCounter, 1419 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2526 GetRequests, 2346 SyntacticMatches, 0 SemanticMatches, 180 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 555 ImplicationChecksByTransitivity, 1.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=161occurred in iteration=13, InterpolantAutomatonStates: 147, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 13 MinimizatonAttempts, 35 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 1.8s SatisfiabilityAnalysisTime, 2.3s InterpolantComputationTime, 1425 NumberOfCodeBlocks, 1425 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 2456 ConstructedInterpolants, 0 QuantifiedInterpolants, 4712 SizeOfPredicates, 14 NumberOfNonLiveVariables, 2558 ConjunctsInSsa, 77 ConjunctsInUnsatCore, 26 InterpolantComputations, 12 PerfectInterpolantSequences, 4120/9016 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 04:09:55,029 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...